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<meta name="robots" content="INDEX,FOLLOW,NOARCHIVE" /><meta name="citation_inbook_title" content="StatPearls [Internet]" /><meta name="citation_title" content="Airway Monitoring" /><meta name="citation_publisher" content="StatPearls Publishing" /><meta name="citation_date" content="2023/07/19" /><meta name="citation_author" content="Catalina Carvajal" /><meta name="citation_author" content="Javier Lopez" /><meta name="citation_pmid" content="30521300" /><meta name="citation_fulltext_html_url" content="https://www.ncbi.nlm.nih.gov/books/NBK534879/" /><link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" /><meta name="DC.Title" content="Airway Monitoring" /><meta name="DC.Type" content="Text" /><meta name="DC.Publisher" content="StatPearls Publishing" /><meta name="DC.Contributor" content="Catalina Carvajal" /><meta name="DC.Contributor" content="Javier Lopez" /><meta name="DC.Date" content="2023/07/19" /><meta name="DC.Identifier" content="https://www.ncbi.nlm.nih.gov/books/NBK534879/" /><meta name="description" content="Airway monitoring, as part of a comprehensive physical examination, evaluates a patient's ventilation and gas exchange capacity. This assessment includes examining the airway's condition and interpreting data from adjunct monitors. Although vital for patient care, caution is necessary while analyzing monitor data due to inherent limitations. This review explores various airway monitoring techniques, their functions, and limitations." /><meta name="og:title" content="Airway Monitoring" /><meta name="og:type" content="book" /><meta name="og:description" content="Airway monitoring, as part of a comprehensive physical examination, evaluates a patient's ventilation and gas exchange capacity. This assessment includes examining the airway's condition and interpreting data from adjunct monitors. Although vital for patient care, caution is necessary while analyzing monitor data due to inherent limitations. This review explores various airway monitoring techniques, their functions, and limitations." /><meta name="og:url" content="https://www.ncbi.nlm.nih.gov/books/NBK534879/" /><meta name="og:site_name" content="NCBI Bookshelf" /><meta name="og:image" content="https://www.ncbi.nlm.nih.gov/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-statpearls-lrg.png" /><meta name="twitter:card" content="summary" /><meta name="twitter:site" content="@ncbibooks" /><meta name="bk-non-canon-loc" content="/books/n/statpearls/article-17315/" /><link rel="canonical" href="https://www.ncbi.nlm.nih.gov/books/NBK534879/" /><link rel="stylesheet" href="/corehtml/pmc/css/figpopup.css" type="text/css" media="screen" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books.min.css" type="text/css" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books_print.min.css" type="text/css" /><style type="text/css">p a.figpopup{display:inline !important} .bk_tt {font-family: monospace} .first-line-outdent .bk_ref {display: inline} </style><script type="text/javascript" src="/corehtml/pmc/js/jquery.hoverIntent.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/common.min.js?_=3.18"> </script><script type="text/javascript">window.name="mainwindow";</script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/book-toc.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/books.min.js"> </script>
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<div class="pre-content"><div><div class="bk_prnt"><p class="small">NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.</p><p>StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. </p></div></div></div>
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<div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><h1 id="_NBK534879_"><span class="title" itemprop="name">Airway Monitoring</span></h1><p class="contrib-group"><h4>Authors</h4><span itemprop="author">Catalina Carvajal</span>; <span itemprop="author">Javier Lopez</span><sup>1</sup>.</p><h4>Affiliations</h4><div class="affiliation"><sup>1</sup> Kendall Regional Medical Center</div><p class="small">Last Update: <span itemprop="dateModified">July 19, 2023</span>.</p></div><div class="body-content whole_rhythm" itemprop="text"><div id="article-17315.s1"><h2 id="_article-17315_s1_">Continuing Education Activity</h2><p>This activity delves into the significance of airway monitoring in evaluating a patient's ventilatory function and gas exchange. Various methods employed for airway monitoring and the constraints associated with each are reviewed. The emphasis lies in conducting a comprehensive physical examination, which involves evaluating airway anatomy and utilizing the LEMON mnemonic to identify a challenging airway. Furthermore, the activity addresses the importance of employing objective monitoring tools, such as waveform capnography and pulse oximetry, to verify the appropriate positioning of an endotracheal tube and to assess ventilation and oxygenation. Lastly, the activity highlights the crucial role of an interprofessional healthcare team in monitoring and treating patients with airway compromise.</p><p>
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<b>Objectives:</b>
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<ul><li class="half_rhythm"><div>Identify potential airway obstructions and complications.</div></li><li class="half_rhythm"><div>Implement proper use of airway devices and procedures.</div></li><li class="half_rhythm"><div>Select appropriate airway equipment based on patient needs.</div></li><li class="half_rhythm"><div>Collaborate with the interprofessional team to optimize airway management strategies and provide appropriate surveillance of patients undergoing airway monitoring.</div></li></ul>
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</p></div><div id="article-17315.s2"><h2 id="_article-17315_s2_">Introduction</h2><p>Airway monitoring, as part of a comprehensive physical examination, evaluates a patient's ventilation and gas exchange capacity. This assessment includes examining the airway's condition and interpreting data from adjunct monitors. Although vital for patient care, caution is necessary while analyzing monitor data due to inherent limitations. This review explores various airway monitoring techniques, their functions, and limitations.</p></div><div id="article-17315.s3"><h2 id="_article-17315_s3_">Anatomy and Physiology</h2><p>Monitoring a patient in respiratory distress involves gathering both subjective and objective information.<a class="bk_pop" href="#article-17315.r1">[1]</a> A focused history and physical examination offer valuable insights into the patient's airway protection ability. A thorough understanding of airway anatomy aids in conducting a thorough airway examination. The airway can be categorized into 2 parts: the upper airway, encompassing the nasal cavity, oropharynx, and larynx, and the lower airway, starting from the trachea and extending through the bronchus, bronchioles, and alveoli (see <b>Image.</b> Airway and Lung Anatomy).</p><p>An airway exam should include an assessment of mouth opening, dentition, thyromental distance, neck circumference, Mallampati score (see <b>Image.</b> Mallampati Score Visual), and cervical spine mobility. The mnemonic, LEMON, is often used to evaluate an airway.</p><ul><li class="half_rhythm"><div>L: Look</div></li><li class="half_rhythm"><div>E: Evaluate</div></li><li class="half_rhythm"><div>M: Mallampati</div></li><li class="half_rhythm"><div>O: Obstruction</div></li><li class="half_rhythm"><div>N: Neck mobility</div></li></ul><p>Indicators such as a diminished mouth opening of fewer than 3 fingers, a large neck, a short thyromental distance of fewer than 3 fingerbreadths, Mallampati 3 or 4, or limited neck extension should alert the provider of a possible difficult airway and prompt for proper preparation.<a class="bk_pop" href="#article-17315.r2">[2]</a></p><p>Different airway examination tests can be used; however, their accuracy may vary.<a class="bk_pop" href="#article-17315.r3">[3]</a> Some of the commonly used airway examination tests and their accuracy include the following:<a class="bk_pop" href="#article-17315.r4">[4]</a><a class="bk_pop" href="#article-17315.r5">[5]</a></p><ol><li class="half_rhythm"><div>Mallampati Test: This test is a simple, noninvasive method to predict difficult intubation by evaluating the visibility of the oropharyngeal structures. However, the Mallampati test has limited accuracy, with a sensitivity ranging from 24% to 62% and a specificity of 78% to 82%.</div></li><li class="half_rhythm"><div>Thyromental Distance: The thyromental distance measures the space between the thyroid notch and the mentum (lower jaw). A shorter distance is associated with a difficult airway. The test has a sensitivity of 44% to 55% and a specificity of 85% to 89%.</div></li><li class="half_rhythm"><div>Sternomental Distance: This test measures the distance between the sternal notch and the mentum. A shorter distance suggests a difficult airway. The sensitivity of the sternomental distance test ranges from 50% to 62%, with a specificity of 88% to 89%.</div></li><li class="half_rhythm"><div>Inter-incisor Gap: The inter-incisor gap is the distance between the upper and lower incisors with the mouth fully open. A smaller gap indicates a difficult airway. The test has a sensitivity of 29% to 61% and a specificity of 83% to 85%.</div></li><li class="half_rhythm"><div>Neck Mobility: Limited neck mobility can make airway management more challenging. The test has a sensitivity of 29% to 54% and a specificity of 85% to 89%.</div></li><li class="half_rhythm"><div>Upper Lip Bite Test: The upper lip bite test involves asking the patient to bite their upper lip with their lower incisors. The test has a sensitivity of 68% to 93% and a specificity of 82% to 97%.</div></li></ol><p>Airway ultrasound has a place in assisting in predictions of difficult patient intubations.<a class="bk_pop" href="#article-17315.r6">[6]</a><a class="bk_pop" href="#article-17315.r7">[7]</a></p><p>The most accurate predictor of difficult intubation is an inter-incisor distance of less than 3 cm. Upon intubation, physical exam signs, including fogging/mist in the endotracheal tube (ETT) lumen, chest rise with each breath, and bilateral breath sounds, indicate endotracheal intubation. Although a chest x-ray can help visualize placement, it is not mandatory. Clinical correlation is recommended instead. The most reliable measures of endotracheal intubation are direct visualization during laryngoscopy and persistently elevated end-tidal carbon dioxide (ETCO<sub>2</sub>).<a class="bk_pop" href="#article-17315.r8">[8]</a></p><p>In addition to the LEMON mnemonic for airway assessment, other factors such as the patient's level of consciousness, respiratory rate, oxygen saturation, and use of accessory muscles can provide valuable information about the patient's airway status. Auscultation of breath sounds can also help identify abnormalities, such as wheezing, stridor, crackles, or diminished breath sounds.<a class="bk_pop" href="#article-17315.r9">[9]</a><a class="bk_pop" href="#article-17315.r10">[10]</a></p></div><div id="article-17315.s4"><h2 id="_article-17315_s4_">Indications</h2><p>Airway monitors are essential for assessing a patient's physical condition and clinical situation. Indicators that a patient may need a secured airway through endotracheal intubation include symptoms like difficulty speaking, leaning forward in a tripod position, drooling, increased work of breathing, nasal flaring, tachypnea, declining mental status, cyanosis, and increasing demand for FiO<sub>2</sub>.</p><p>Obtaining a thorough medical history and physical examination can be challenging when dealing with unresponsive patients or children. In such cases, healthcare professionals must use alternative methods to assess the patient's airway. Monitoring vital signs and conducting laboratory tests can provide valuable insights and help identify potential respiratory failure.</p><p>While arterial blood gas analysis is reliable, it is an invasive procedure. Relying solely on physical examination findings, such as breath sounds, may not accurately confirm endotracheal intubation in patients with preexisting lung conditions. To ensure the proper placement of an endotracheal tube, waveform capnography is the most dependable technique.</p></div><div id="article-17315.s5"><h2 id="_article-17315_s5_">Equipment</h2><p>Capnography is an airway monitoring method applicable in controlled and spontaneously ventilating patients. The amount of infrared light absorbed by carbon dioxide in exhaled gas is measured and reported as a concentration value. Waveform capnography can provide qualitative data via waveform analysis and quantitative data via alveolar end-tidal carbon dioxide (ETCO<sub>2</sub>).<a class="bk_pop" href="#article-17315.r11">[11]</a> Other forms of capnography, such as colorimetric capnography, can confirm endotracheal intubation in remote, out-of-hospital settings, emergency departments, or intensive care units. Capnography can provide reliable information confirming adequate ventilation and cellular gas exchange. </p><p>The waveform shows 4 phases of the respiratory cycle. </p><ul><li class="half_rhythm"><div><b>Phase 1:</b> Inspiratory baseline</div></li><li class="half_rhythm"><div><b>Phase 2:</b> Expiratory upstroke</div></li><li class="half_rhythm"><div><b>Phase 3:</b> Expiratory plateau</div></li><li class="half_rhythm"><div><b>Phase 4:</b> Inspiratory downstroke</div></li></ul><p>Predicting catastrophic events is possible by analyzing changes in waveform morphology and amplitude. Elevated levels of ETCO<sub>2</sub> could indicate various medical conditions, such as rebreathing, hypoventilation, malignant hyperthermia, sepsis, insufflation from laparoscopic surgery, or bicarbonate administration. Decreases in ETCO<sub>2</sub> are found during hyperventilation, hypothermia, low cardiac output states (eg, pulmonary embolism or cardiac arrest), disconnection of the circuit, or accidental extubation. Morphology perturbations such as up-slanting of the expiratory upstroke or prolongation of the plateau phase can be evidence of airway obstruction seen in bronchospasm, asthma, pregnancy, chronic obstructive pulmonary disease (COPD), or a kinked endotracheal tube. Waveform capnography is a crucial monitoring tool for intubated patients, and its interpretation can aid in managing their ventilation.</p><p>Capnography has limitations, especially when a patient is not intubated or doesn't have a secure airway. Simply observing a positive return of end-tidal carbon dioxide may or may not confirm the endotracheal placement of the endotracheal tube. However, a sustained ETCO<sub>2</sub> level greater than 30 mm Hg for at least 3 breaths can confirm endotracheal placement. It's worth noting that if a patient consumed a bicarbonate solution or carbonated beverage before intubation, this could alter ETCO<sub>2</sub> readings. Furthermore, capnography is limited in pulseless patients because it requires cardiac output. However, it can guide chest compressions, where a sudden increase in ETCO<sub>2</sub> may suggest a return of spontaneous circulation.</p><p>The pulse oximeter is a noninvasive monitor that detects changes in hemoglobin oxygenation saturation and heart rate. Pulse oximetry functions on spectrophotometry and photoplethysmography. Oxyhemoglobin absorbs infrared (IR) light at a wavelength of 940 nm, and deoxyhemoglobin absorbs red (R) light at 660 nm. When oxyhemoglobin absorbs emitted infrared light, it allows red light to be transmitted and received by the photodetector. The red-to-infrared light ratio determines the percentage of hemoglobin oxygen saturation. The pulsations occurring with each heartbeat are recorded as arterial blood and thus provide arterial blood oxygenation.<a class="bk_pop" href="#article-17315.r12">[12]</a></p><p>Although a pulse oximeter can help determine blood oxygen levels, it has some limitations. For example, carboxyhemoglobin resulting from carbon monoxide poisoning can cause falsely elevated oxygen saturation readings since it has the same absorption wavelength as oxyhemoglobin. Methemoglobinemia, which has the same absorption coefficient for red and infrared light (resulting in a 1:1 R/IR ratio), depicts a saturation of approximately 85%. This phenomenon results in a falsely low oxygen saturation when the saturation is greater than 85% and a falsely elevated saturation when the saturation is less than 85%. Other factors affecting the accuracy of oxygen saturation readings include acid-base disorders, severe hypoxemia, dark nail polish, excessive motion, ambient light, low perfusion, hypothermia, increased systemic vascular resistance, profound anemia, methylene blue dye, and malpositioning. It's important to consider these limitations when interpreting pulse oximeter readings.</p><p>Capnography has been further studied and developed for various clinical applications recently. The usefulness of capnography as a noninvasive method for monitoring ventilation has been demonstrated in various settings, such as during procedural sedation, in the management of acute respiratory distress syndrome, and in emergency medicine for the early detection of respiratory failure.<a class="bk_pop" href="#article-17315.r13">[13]</a><a class="bk_pop" href="#article-17315.r14">[14]</a><a class="bk_pop" href="#article-17315.r15">[15]</a> Using capnography has also improved patient safety and outcomes by reducing the incidence of adverse events related to hypoventilation and hypoxia.<a class="bk_pop" href="#article-17315.r16">[16]</a></p><p>Recent technological advances have led to new capnography devices that are more portable, user-friendly, and versatile, allowing for broader use in different clinical scenarios.<a class="bk_pop" href="#article-17315.r14">[14]</a> Despite these advances, it is essential to know capnography and pulse oximetry limitations and the factors influencing their accuracy.</p><p>Airway monitors are essential tools for identifying the need for airway management and guiding medical professionals in the process. In cases where patients cannot provide their medical history due to an altered mental state or age, alternative methods must be used to assess their airway and respiratory condition.</p><p>One alternative method is imaging, such as chest x-ray, ultrasound, and bronchoscopy. These modalities can help identify underlying lung pathologies, airway obstruction, and foreign bodies and provide visual guidance during endotracheal intubation.<a class="bk_pop" href="#article-17315.r17">[17]</a> In particular, point-of-care lung ultrasound (POCUS) has gained popularity recently due to its noninvasive nature, rapid results, and portability, making it an ideal tool for use in emergency settings and intensive care units.<a class="bk_pop" href="#article-17315.r18">[18]</a></p><p>Another way to evaluate the condition of a patient's airway is through constant monitoring of their respiratory parameters. This includes keeping track of their respiratory rate, tidal volume, and minute ventilation with the help of advanced ventilators and monitoring tools. By monitoring these parameters, healthcare providers can quickly detect changes in the patient's respiratory status, enabling them to take timely action and provide appropriate treatment.<a class="bk_pop" href="#article-17315.r19">[19]</a></p><p>In addition to waveform capnography, other noninvasive monitoring tools can provide valuable information about a patient's airway status. For instance, electrical impedance tomography (EIT) is a novel technique that measures regional lung ventilation and perfusion, which can aid in optimizing ventilation strategies and detecting complications such as pneumothorax, atelectasis, or bronchospasm.<a class="bk_pop" href="#article-17315.r20">[20]</a></p><p>In conclusion, capnography is a valuable method for monitoring airway and ventilation in spontaneously breathing and ventilated patients. Its ability to provide real-time information on the patient's ventilation status makes it an essential tool in various clinical settings. While it has limitations, recent technological developments have expanded its applications and improved its usability. Capnography and pulse oximetry can help guide patient management and improve patient safety.</p></div><div id="article-17315.s6"><h2 id="_article-17315_s6_">Personnel</h2><p>All individuals involved in patient care must be able to identify the symptoms of respiratory distress in patients. In such cases, seeking advice from a qualified clinician experienced in airway management is essential, and objective assessments should be conducted. Additionally, in situations where a challenging airway is expected, it is recommended to have video-assisted laryngoscopy as a backup tool. Furthermore, the difficult airway algorithm should be carefully reviewed for all patients who may be difficult to ventilate or intubate.</p></div><div id="article-17315.s7"><h2 id="_article-17315_s7_">Technique or Treatment</h2><p>Understanding transpulmonary pressure is essential in assessing lung stress. It accurately reflects alveolar pressure and serves as a crucial physiological marker. Esophageal manometry, which utilizes esophageal balloon catheters, is used to measure pleural pressure and make necessary ventilator adjustments. However, calibration methods are necessary to account for air volume in the balloon. Clinical applications of esophageal manometry include assessing lung and chest wall compliance, estimating breathing effort for ventilator weaning, detecting upper airway obstruction post-extubation, and identifying patient-ventilator asynchrony.<a class="bk_pop" href="#article-17315.r21">[21]</a></p><p>Clinical trials and meta-analyses suggest that intraoperative quantitative monitoring significantly decreases residual neuromuscular blockade risk and enhances postoperative respiratory outcomes by minimizing adverse events. Consequently, numerous international anesthesia societies endorse using quantitative monitoring when administering neuromuscular blocking agents in perioperative settings.<a class="bk_pop" href="#article-17315.r22">[22]</a></p><p>Capnography, or real-time monitoring of exhaled carbon dioxide (CO<sub>2</sub>), is a valuable tool for assessing patient health during anesthesia, in emergency departments and critical care units, with end-tidal CO<sub>2</sub> concentration being the fundamental measurement. The applications of this technology are varied, including verifying the placement of endotracheal tubes, assessing disease severity and treatment response, and monitoring sleep apnea in outpatient settings. With the progress of technology, smaller sensors have been utilized in different scenarios, such as pre-hospital surroundings and high-performance military planes. These offer possibilities for new applications that can be integrated into breathing masks.<a class="bk_pop" href="#article-17315.r23">[23]</a></p><p>In a difficult airway, the effectiveness of airway nerve blocks compared to airway anesthesia without nerve blocks for awake tracheal intubation (ATI) has been compared. Airway nerve blocks significantly reduced intubation time, improved anesthesia quality, and decreased overall complications. In conclusion, airway nerve blocks provide superior airway anesthesia quality for ATI, offering better intubation conditions and patient satisfaction while reducing complications.<a class="bk_pop" href="#article-17315.r24">[24]</a></p><p>Different surgical conditions require specific ventilation strategies that come with their challenges and considerations. For instance, laparoscopic surgery involving creating a pneumoperitoneum can lead to reduced lung compliance and increased ventilatory pressures due to the diaphragm's cephalad displacement. While prone positioning can benefit the respiratory system, it requires careful airway management to prevent disconnection of the endotracheal tube. One-lung ventilation during thoracic surgery affects ventilation-perfusion matching and requires lung-protective strategies. Jet ventilation is a specialized technique requiring a shared airway or a still chest. It can be performed at low frequencies for laryngeal procedures or at high frequencies for specialized interventions, with considerations for airway pressures and gas exchange. Knowing these ventilation strategies and their implications in various surgical scenarios can enhance patient care and outcomes.<a class="bk_pop" href="#article-17315.r25">[25]</a></p></div><div id="article-17315.s8"><h2 id="_article-17315_s8_">Clinical Significance</h2><p>Properly monitoring an intubated patient's airway involves considering several variables. The ventilator visually represents a patient's ventilatory mechanics and can detect acute changes. Radiographic imaging can help identify developing lung pathology or diaphragmatic abnormalities. It is crucial to monitor the patient's airway appropriately when weaning them from a ventilator to ensure they can maintain and protect it. Following specific criteria is essential for safe extubation and preventing the need for re-intubation.</p></div><div id="article-17315.s9"><h2 id="_article-17315_s9_">Enhancing Healthcare Team Outcomes </h2><p>Patient-centered care is best achieved through an interprofessional approach with effective communication. The nursing staff and emergency medical services are among the first members of the healthcare team to monitor and assess a patient's airway. Guidelines established by the American College of Surgeons Advanced Trauma Life Support (ATLS) course and the American Heart Association have prioritized airway management when assessing a patient. Prehospital basic airway management for patients at risk for airway compromise ensures the best outcomes in morbidity and mortality when the patient reaches in-hospital care.<a class="bk_pop" href="#article-17315.r26">[26]</a> </p><p>Physicians, advanced practitioners, nurse anesthetists, respiratory therapists, nurses, radiologists, and pharmacists all play an essential role in detecting early airway compromise and in the event of an emergency endotracheal intubation. Proper advanced airway management is vital, and an expert skill level is required. Incorrect placement of an advanced airway can cause gastric insufflation, hypoxia resulting in anoxic brain injury, alterations in blood gases and acidosis, ischemia to vital organs, and if not corrected, may cause death.</p><p>Proper ventilation is crucial for sustaining life, so a collaborative approach among healthcare professionals is necessary to ensure positive patient outcomes. All healthcare team members should be vigilant in monitoring patients and alert the physician, advanced practice clinician, nurse anesthetist, or respiratory therapist if they suspect respiratory failure. Radiologists can provide valuable information on lung pathology or confirm the correct placement of an endotracheal tube. At the same time, respiratory therapists can identify early signs of deteriorating lung function and patient symptoms. Pharmacists also play a critical role in providing the necessary medications for rapid sequence induction and intubation and guiding clinicians in selecting appropriate drugs to avoid potential complications or drug interactions. If intubation proves to be challenging or unsuccessful, consulting an anesthesiologist or nurse anesthetist in a hospital setting is highly recommended.</p><p>
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<b>Skills</b>
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</p><p>Performing proper airway monitoring is a necessary skill set. Airway monitoring requires diligence, commitment, quality improvement, and compliance with appropriate and proven methods and interventions. Continued medical education, focused review, and training regarding airway monitoring are essential to patient safety.</p><p>
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<b>Strategy</b>
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</p><p>Maintaining continuous closed-loop communication among all members of the perioperative care team regarding the need, technique, and potential management issues associated with airway monitoring is ideal. </p><p>
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||
<b>Ethics</b>
|
||
</p><p>Before monitoring the airway, obtaining detailed and complete informed consent from the patient or their authorized decision maker is essential if the patient cannot consent. Every team member should communicate concerns regarding the process with the patient and the team. This promotes participation from all stakeholders and facilitates the timely recognition and resolution of potential problems.</p><p>
|
||
<b>Responsibilities</b>
|
||
</p><p>All team members must communicate their concerns, responsibilities, and activities with all other team members contemporaneously and as indicated throughout the perioperative period, based on their professional discretion.</p><p>
|
||
<b>Interprofessional Communication</b>
|
||
</p><p>All team members should respect the free flow of information and concerns among team members without allowing or producing an environment of hostility.</p><p>
|
||
<b>Care Coordination</b>
|
||
</p><p>All interprofessional team members should consider it their duty to neither disrupt the work performed by other team members nor to, through their actions or inaction, create additional issues or increase the workload for other team members.</p></div><div id="article-17315.s10"><h2 id="_article-17315_s10_">Review Questions</h2><ul><li class="half_rhythm"><div>
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</div></li></ul></div><div class="floats-group" id="article-17315.s11"></div><div class="floats-group" id="article-17315.s12"></div><div id="article-17315.s13"><h2 id="_article-17315_s13_">References</h2><dl class="temp-labeled-list"><dt>1.</dt><dd><div class="bk_ref" id="article-17315.r1">Cammarota G, Simonte R, Longhini F, Spadaro S, Vetrugno L, De Robertis E. Advanced Point-of-care Bedside Monitoring for Acute Respiratory Failure. <span><span class="ref-journal">Anesthesiology. </span>2023 Mar 01;<span class="ref-vol">138</span>(3):317-334.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/36749422" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 36749422</span></a>]</div></dd><dt>2.</dt><dd><div class="bk_ref" id="article-17315.r2">Christie J. Airway physical examination tests for detection of difficult airway management in apparently normal adult patients. <span><span class="ref-journal">Int J Nurs Pract. </span>2020 Jun;<span class="ref-vol">26</span>(3):e12805.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/32036623" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 32036623</span></a>]</div></dd><dt>3.</dt><dd><div class="bk_ref" id="article-17315.r3">Roth D, Pace NL, Lee A, Hovhannisyan K, Warenits AM, Arrich J, Herkner H. Bedside tests for predicting difficult airways: an abridged Cochrane diagnostic test accuracy systematic review. <span><span class="ref-journal">Anaesthesia. </span>2019 Jul;<span class="ref-vol">74</span>(7):915-928.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/30843190" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 30843190</span></a>]</div></dd><dt>4.</dt><dd><div class="bk_ref" id="article-17315.r4">Li WX, Wang DD, Li X, Li WX, Han Y, Cai YR. Risk factors for difficult mask ventilation and difficult intubation among patients undergoing pharyngeal and laryngeal surgery. <span><span class="ref-journal">Heliyon. </span>2023 Mar;<span class="ref-vol">9</span>(3):e14408.</span> [<a href="/pmc/articles/PMC10018552/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC10018552</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/36938445" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 36938445</span></a>]</div></dd><dt>5.</dt><dd><div class="bk_ref" id="article-17315.r5">Bicalho GP, Bessa RC, Cruvinel MGC, Carneiro FS, Castilho JB, Castro CHV. A prospective validation and comparison of three multivariate models for prediction of difficult intubation in adult patients. <span><span class="ref-journal">Braz J Anesthesiol. </span>2023 Mar-Apr;<span class="ref-vol">73</span>(2):153-158.</span> [<a href="/pmc/articles/PMC10068536/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC10068536</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/34411628" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34411628</span></a>]</div></dd><dt>6.</dt><dd><div class="bk_ref" id="article-17315.r6">Benavides-Zora D, Jaramillo MC, Townsley MM, Franco V, González S, Hoyos C, Cerón J, Arias-Botero JH, Sondekoppam RV, Kalagara H. Diagnostic Performance of Airway Ultrasound for the Assessment of Difficult Laryngoscopy: A Systematic Review and Meta-Analysis. <span><span class="ref-journal">J Cardiothorac Vasc Anesth. </span>2023 Jul;<span class="ref-vol">37</span>(7):1101-1109.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/37012134" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 37012134</span></a>]</div></dd><dt>7.</dt><dd><div class="bk_ref" id="article-17315.r7">Sotoodehnia M, Abbasi N, Bahri RA, Abdollahi A, Baratloo A. Accuracy of airway ultrasound parameters to predict difficult airway using the LEMON criteria as a reference: A cross-sectional diagnostic accuracy study. <span><span class="ref-journal">Turk J Emerg Med. </span>2023 Jan-Mar;<span class="ref-vol">23</span>(1):38-43.</span> [<a href="/pmc/articles/PMC9930393/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC9930393</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/36818949" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 36818949</span></a>]</div></dd><dt>8.</dt><dd><div class="bk_ref" id="article-17315.r8">Silvestri S, Ladde JG, Brown JF, Roa JV, Hunter C, Ralls GA, Papa L. Endotracheal tube placement confirmation: 100% sensitivity and specificity with sustained four-phase capnographic waveforms in a cadaveric experimental model. <span><span class="ref-journal">Resuscitation. </span>2017 Jun;<span class="ref-vol">115</span>:192-198.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/28111195" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 28111195</span></a>]</div></dd><dt>9.</dt><dd><div class="bk_ref" id="article-17315.r9">Karamchandani K, Wheelwright J, Yang AL, Westphal ND, Khanna AK, Myatra SN. Emergency Airway Management Outside the Operating Room: Current Evidence and Management Strategies. <span><span class="ref-journal">Anesth Analg. </span>2021 Sep 01;<span class="ref-vol">133</span>(3):648-662.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/34153007" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34153007</span></a>]</div></dd><dt>10.</dt><dd><div class="bk_ref" id="article-17315.r10">Dres M, Demoule A. Monitoring diaphragm function in the ICU. <span><span class="ref-journal">Curr Opin Crit Care. </span>2020 Feb;<span class="ref-vol">26</span>(1):18-25.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/31876624" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 31876624</span></a>]</div></dd><dt>11.</dt><dd><div class="bk_ref" id="article-17315.r11">Brochard L, Martin GS, Blanch L, Pelosi P, Belda FJ, Jubran A, Gattinoni L, Mancebo J, Ranieri VM, Richard JC, Gommers D, Vieillard-Baron A, Pesenti A, Jaber S, Stenqvist O, Vincent JL. Clinical review: Respiratory monitoring in the ICU - a consensus of 16. <span><span class="ref-journal">Crit Care. </span>2012 Dec 12;<span class="ref-vol">16</span>(2):219.</span> [<a href="/pmc/articles/PMC3681336/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC3681336</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/22546221" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 22546221</span></a>]</div></dd><dt>12.</dt><dd><div class="bk_ref" id="article-17315.r12">Nilsson LM. Respiration signals from photoplethysmography. <span><span class="ref-journal">Anesth Analg. </span>2013 Oct;<span class="ref-vol">117</span>(4):859-865.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/23449854" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 23449854</span></a>]</div></dd><dt>13.</dt><dd><div class="bk_ref" id="article-17315.r13">Ramsay M. Ventilation Monitoring. <span><span class="ref-journal">Anesthesiol Clin. </span>2021 Sep;<span class="ref-vol">39</span>(3):403-414.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/34392876" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34392876</span></a>]</div></dd><dt>14.</dt><dd><div class="bk_ref" id="article-17315.r14">Olsen F, Suyderhoud JP, Khanna AK. Respiratory monitoring of nonintubated patients in nonoperating room settings: old and new technologies. <span><span class="ref-journal">Curr Opin Anaesthesiol. </span>2022 Aug 01;<span class="ref-vol">35</span>(4):521-527.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/35788554" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 35788554</span></a>]</div></dd><dt>15.</dt><dd><div class="bk_ref" id="article-17315.r15">Scott JB, Kaur R. Monitoring Breathing Frequency, Pattern, and Effort. <span><span class="ref-journal">Respir Care. </span>2020 Jun;<span class="ref-vol">65</span>(6):793-806.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/32457171" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 32457171</span></a>]</div></dd><dt>16.</dt><dd><div class="bk_ref" id="article-17315.r16">Parker W, Estrich CG, Abt E, Carrasco-Labra A, Waugh JB, Conway A, Lipman RD, Araujo MWB. Benefits and harms of capnography during procedures involving moderate sedation: A rapid review and meta-analysis. <span><span class="ref-journal">J Am Dent Assoc. </span>2018 Jan;<span class="ref-vol">149</span>(1):38-50.e2.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/29304910" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 29304910</span></a>]</div></dd><dt>17.</dt><dd><div class="bk_ref" id="article-17315.r17">Gottlieb M, Holladay D, Burns KM, Nakitende D, Bailitz J. Ultrasound for airway management: An evidence-based review for the emergency clinician. <span><span class="ref-journal">Am J Emerg Med. </span>2020 May;<span class="ref-vol">38</span>(5):1007-1013.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/31843325" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 31843325</span></a>]</div></dd><dt>18.</dt><dd><div class="bk_ref" id="article-17315.r18">Fernandez-Vaquero MÁ, Delgado-Cidranes E, Greif R. Next generation in ultrasound imaging to assess upper airway. <span><span class="ref-journal">Braz J Anesthesiol. </span>2022 Sep-Oct;<span class="ref-vol">72</span>(5):673-675.</span> [<a href="/pmc/articles/PMC9515680/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC9515680</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/35714713" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 35714713</span></a>]</div></dd><dt>19.</dt><dd><div class="bk_ref" id="article-17315.r19">Costanzo I, Sen D, Rhein L, Guler U. Respiratory Monitoring: Current State of the Art and Future Roads. <span><span class="ref-journal">IEEE Rev Biomed Eng. </span>2022;<span class="ref-vol">15</span>:103-121.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/33156794" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 33156794</span></a>]</div></dd><dt>20.</dt><dd><div class="bk_ref" id="article-17315.r20">Yoshida T, Fujino Y. Monitoring the patient for a safe-assisted ventilation. <span><span class="ref-journal">Curr Opin Crit Care. </span>2021 Feb 01;<span class="ref-vol">27</span>(1):1-5.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/33278124" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 33278124</span></a>]</div></dd><dt>21.</dt><dd><div class="bk_ref" id="article-17315.r21">Shimatani T, Kyogoku M, Ito Y, Takeuchi M, Khemani RG. Fundamental concepts and the latest evidence for esophageal pressure monitoring. <span><span class="ref-journal">J Intensive Care. </span>2023 May 22;<span class="ref-vol">11</span>(1):22.</span> [<a href="/pmc/articles/PMC10201808/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC10201808</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/37217973" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 37217973</span></a>]</div></dd><dt>22.</dt><dd><div class="bk_ref" id="article-17315.r22">Murphy GS, Brull SJ. Quantitative Neuromuscular Monitoring and Postoperative Outcomes: A Narrative Review. <span><span class="ref-journal">Anesthesiology. </span>2022 Feb 01;<span class="ref-vol">136</span>(2):345-361.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/34813652" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34813652</span></a>]</div></dd><dt>23.</dt><dd><div class="bk_ref" id="article-17315.r23">Pleil JD, Christensen LE. Rationale for developing tunable laser spectroscopy (TLS) technology for high resolution real-time carbon dioxide monitoring (capnography) in human breath. <span><span class="ref-journal">J Breath Res. </span>2021 Sep 23;<span class="ref-vol">15</span>(4)</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/34525465" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34525465</span></a>]</div></dd><dt>24.</dt><dd><div class="bk_ref" id="article-17315.r24">Zheng J, Du L, Du B, Zhang W, Zhang L, Chen G. Airway nerve blocks for awake tracheal intubation: A meta-analysis of randomized control trials and trial sequential analysis. <span><span class="ref-journal">J Clin Anesth. </span>2023 Sep;<span class="ref-vol">88</span>:111122.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/37054484" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 37054484</span></a>]</div></dd><dt>25.</dt><dd><div class="bk_ref" id="article-17315.r25">Balakrishna A, Brunker L, Hughes CG. Anesthesia Machine and New Modes of Ventilation. <span><span class="ref-journal">Adv Anesth. </span>2022 Dec;<span class="ref-vol">40</span>(1):167-183.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/36333046" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 36333046</span></a>]</div></dd><dt>26.</dt><dd><div class="bk_ref" id="article-17315.r26">Lockey DJ, Crewdson K, Lossius HM. Pre-hospital anaesthesia: the same but different. <span><span class="ref-journal">Br J Anaesth. </span>2014 Aug;<span class="ref-vol">113</span>(2):211-9.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/25038153" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 25038153</span></a>]</div></dd></dl></div><div><dl class="temp-labeled-list small"><dt></dt><dd><div><p class="no_top_margin">
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<b>Disclosure: </b>Catalina Carvajal declares no relevant financial relationships with ineligible companies.</p></div></dd><dt></dt><dd><div><p class="no_top_margin">
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<b>Disclosure: </b>Javier Lopez declares no relevant financial relationships with ineligible companies.</p></div></dd></dl></div><div class="bk_prnt_sctn"><h2>Figures</h2><div class="whole_rhythm bk_prnt_obj bk_first_prnt_obj"><div id="article-17315.image.f1" class="figure bk_fig"><div class="graphic"><img src="/books/NBK534879/bin/845px-Respiratory_system_complete_en.svg.jpg" alt="Image 845px-Respiratory_system_complete_en.svg" /></div><div class="caption"><p>Airway and Lung Anatomy Contributed by Public Domain</p></div></div></div><div class="whole_rhythm bk_prnt_obj"><div id="article-17315.image.f2" class="figure bk_fig"><div class="graphic"><img src="/books/NBK534879/bin/Mallampati.jpg" alt="Mallampati Score Visual Contributed by Jmarchn" /></div><div class="caption"><p>Mallampati Score Visual Contributed by Jmarchn. Creative Commons.</p></div></div></div></div></div></div>
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