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<meta name="citation_date" content="2024/06/07">
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<meta name="citation_author" content="Kingsley C. Anosike">
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<meta name="citation_author" content="Senthil Vel Rajan Rajaram Manoharan">
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autocorrect="off" autocomplete="off" /><a id="jr-fip-mg" class="wsprkl btn" title="Find"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 550 600" preserveAspectRatio="none"><path fill="none" stroke="#000" stroke-width="36" stroke-linecap="round" style="fill:#FFF" d="m320,350a153,153 0 1,0-2,2l170,170m-91-117 110,110-26,26-110-110"></path></svg></a><a id="jr-fip-done" class="wsprkl btn" title="Dismiss find">✘</a></nav><nav id="jr-fip-info-p"><a id="jr-fip-prev" class="wsprkl btn" title="Jump to previuos match">◀</a><button id="jr-fip-matches">no matches yet</button><a id="jr-fip-next" class="wsprkl btn" title="Jump to next match">▶</a></nav></nav></div><div id="jr-epub-interstitial" class="hidden"></div><div id="jr-content"><article data-type="main"><div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><div class="fm-sec"><h1 id="_NBK604196_"><span class="title" itemprop="name">Central Post-Stroke Pain Syndrome</span></h1><p class="contribs">Anosike KC, Rajaram Manoharan SVR.</p><p class="fm-aai"><a href="#_NBK604196_pubdet_">Publication Details</a></p></div></div><div class="jig-ncbiinpagenav body-content whole_rhythm" data-jigconfig="allHeadingLevels: ['h2'],smoothScroll: false" itemprop="text"><div id="article-150900.s1"><h2 id="_article-150900_s1_">Continuing Education Activity</h2><p>Central poststroke pain syndrome (CPSPS) presents as a complex neuropathic pain syndrome following a cerebrovascular accident (CVA), distinct from thalamic pain syndrome due to broader neural involvement. Symptoms, such as paresthesias and hyperalgesia, typically emerge 3 to 6 months post-CVA, with a variable onset. Diagnosis is challenging, requiring ruling out other post-stroke pathologies. Pharmacologic interventions, including analgesics and antidepressants, aim to alleviate pain and improve mood disturbances, while nonpharmacologic approaches, such as physical therapy and psychological interventions, address functional impairment and psychological well-being.</p><p> This activity enhances CPSPS evaluation and management proficiency, deepening insight into its etiology, clinical characteristics, and evidence-based strategies. Treatment necessitates an interprofessional approach, integrating pharmacologic and nonpharmacologic interventions.  Collaborating within an interprofessional healthcare team optimizes CPSPS management, tailoring treatment plans to individual needs. Clinicians optimize patient care by synergizing expertise across disciplines, ensuring timely interventions and comprehensive support. Improved collaboration enhances treatment adherence and patient satisfaction, ultimately enhancing the quality of life for individuals with CPSPS.</p><p>
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<b>Objectives:</b>
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<ul><li class="half_rhythm"><div>Assess central poststroke pain syndrome severity using standardized pain assessment tools and functional assessments to guide treatment decisions and monitor response. </div></li><li class="half_rhythm"><div>Apply evidence-based treatment strategies, including analgesic medications, physical therapy, and psychological interventions, to alleviate central poststroke pain syndrome-related symptoms and improve patient outcomes.</div></li><li class="half_rhythm"><div>Select appropriate pharmacologic and therapeutic treatment options for patients with central poststroke pain syndrome. </div></li><li class="half_rhythm"><div>Collaborate with the interprofessional team to educate, treat, and monitor patients with central poststroke pain syndrome to improve health outcomes.</div></li></ul>
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</p></div><div id="article-150900.s2"><h2 id="_article-150900_s2_">Introduction</h2><p>
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<b>Central Poststroke Pain Syndrome Overview</b>
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</p><p>Central poststroke pain syndrome (CPSPS) is a neuropathic pain syndrome, manifesting as continuous or paroxysmal pains or paresthesias secondary to a cerebrovascular accident (CVA). CPSPS mimics thalamic pain syndrome but distinguishes itself by its broader neural involvement. The condition encompasses damage beyond the thalamus, commonly involving sensory pathways such as the spinothalamic and trigeminothalamic tracts.<a class="bibr" href="#article-150900.r1" rid="article-150900.r1">[1]</a><a class="bibr" href="#article-150900.r2" rid="article-150900.r2">[2]</a> The disease presentation exhibits remarkable variability but commonly features paresthesias, allodynia, and hyperalgesia.<a class="bibr" href="#article-150900.r3" rid="article-150900.r3">[3]</a><a class="bibr" href="#article-150900.r4" rid="article-150900.r4">[4]</a> Onset is typically 3 to 6 months post-CVA, but early and delayed presentations have also been documented.<a class="bibr" href="#article-150900.r5" rid="article-150900.r5">[5]</a><a class="bibr" href="#article-150900.r6" rid="article-150900.r6">[6]</a></p><p>Diagnosing CPSPS is challenging as it requires ruling out other poststroke conditions systematically, including pain attributed to spasticity, headaches, and musculoskeletal issues. Only 30% of patients get treatment in the acute and subacute phases poststroke. This undertreatment is associated with severe consequences like sleep disturbances, depression, and even suicide.<a class="bibr" href="#article-150900.r7" rid="article-150900.r7">[7]</a><a class="bibr" href="#article-150900.r8" rid="article-150900.r8">[8]</a> However, recent literature has compiled common clinical signs and treatment options to enhance outcomes.</p><p>
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<b>Pain Pathways in CPSPS: A Brief Review</b>
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</p><p>CPSPS arises from damage to diverse areas of the central nervous system (CNS) after a stroke. The specific anatomical involvement can vary, but several key structures and pathways are commonly implicated. The thalamus is a pivotal relay center for sensory information. Thalamic damage is often associated with CPSPS, given its role in transmitting sensory signals to the cortex. The spinothalamic tract conveys pain and temperature sensations to the thalamus. Injury to this tract often contributes to CPSPS development.</p><p>CPSPS may manifest as facial pain or trigeminal neuralgia when the stroke affects regions governing trigeminal nerve function. Damage to the somatosensory cortex's postcentral gyrus, responsible for processing tactile sensations, can result in abnormal pain perception. Disrupting the descending pain modulation pathways, which typically regulate pain transmission, may also contribute to CPSPS pathophysiology.</p></div><div id="article-150900.s3"><h2 id="_article-150900_s3_">Etiology</h2><p>Poststroke pain arises from damage to key somatosensory structures like the spinothalamic tract, trigeminothalamic tract, and thalamus post-CVA. However, not all damage to these tracts leads to CPSPS. The stroke's nature plays a role, with ischemic strokes more likely to cause CPSPS than hemorrhagic strokes.<a class="bibr" href="#article-150900.r9" rid="article-150900.r9">[9]</a> Reports substantiate this, with an 86.1% incidence among patients who had an ischemic stroke in contrast to 13.9% among individuals who experienced a hemorrhagic stroke.<a class="bibr" href="#article-150900.r10" rid="article-150900.r10">[10]</a></p><p>The stroke's anatomical location does not always predict CPSPS. Some reports suggest lesions near the thalamus and brainstem are more likely to trigger the condition than lower spinal cord damage. Other studies highlight a greater risk of damage to the spinothalamic tract than thalamic lesions, though the exact mechanisms increasing this risk remain elusive.<a class="bibr" href="#article-150900.r11" rid="article-150900.r11">[11]</a> Identifying patients prone to CPSPS remains a significant challenge due to limited knowledge of the condition's precipitating factors.</p></div><div id="article-150900.s4"><h2 id="_article-150900_s4_">Epidemiology</h2><p>The prevalence of CPSPS post-CVA ranges from 1% to 12%, with some studies suggesting it could be up to 25% or more.<a class="bibr" href="#article-150900.r12" rid="article-150900.r12">[12]</a><a class="bibr" href="#article-150900.r13" rid="article-150900.r13">[13]</a><a class="bibr" href="#article-150900.r14" rid="article-150900.r14">[14]</a> Accurately determining the condition's prevalence is challenging due to the delayed symptom onset and the subjectiveness of pain reporting poststroke. However, reported risk factors include older age, female sex, depression, alcohol use, peripheral vascular disease, and statin use.<a class="bibr" href="#article-150900.r15" rid="article-150900.r15">[15]</a><a class="bibr" href="#article-150900.r16" rid="article-150900.r16">[16]</a><a class="bibr" href="#article-150900.r17" rid="article-150900.r17">[17]</a> Additionally, spasticity, reduced upper extremity movements, and sensory deficits poststroke, especially in ischemic strokes, are notable risk factors.</p></div><div id="article-150900.s5"><h2 id="_article-150900_s5_">Pathophysiology</h2><p>Multiple hypotheses have been proposed to elucidate the pathophysiology of CPSPS, which originated from its early association with thalamic syndrome in the early 20th century.<a class="bibr" href="#article-150900.r18" rid="article-150900.r18">[18]</a> Contemporary understanding posits that poststroke pain may arise from lesions affecting the sensory pathways within the CNS. Pain and temperature signals from the limbs and periphery travel through the CNS via the spinothalamic tract, ascending through the spine and brainstem to synapse within the thalamus (see <b>Image</b>. Central Poststroke Pain Syndrome, Potential Sites of Involvement). The spinothalamic tract consists of 2 divisions: the lateral spinothalamic tract, which transmits noxious pain stimuli and temperature, and the anterior spinothalamic tract, which conveys crude touch.</p><p>The lateral spinothalamic tract plays a significant role in CPSPS. This tract begins with first-order neurons, which transmit sensory signals from the periphery to the spinal cord through dorsal roots. These neurons synapse within the spinal cord with second-order neurons in the posterior gray horn. The second-order neurons decussate within the cord, ascend through the brainstem to the cerebrum, and reach the ventral posterolateral (VPL) thalamic nucleus. Third-order neurons then convey signals to the primary sensory cortex (postcentral gyrus) via the posterior limb of the internal capsule and corona radiata. Lesions within (intrathalamic) or around (extrathalamic) this pathway may contribute to CPSPS.</p><p>Studies using positron emission tomography, functional magnetic resonance imaging (fMRI), and peripheral laser stimulation suggest that the thalamus modulates and inhibits ascending pain signals from the periphery. Increased activity in the insula and thalamus has been observed while perceiving noxious stimuli.<a class="bibr" href="#article-150900.r19" rid="article-150900.r19">[19]</a> Deafferentation, or the destruction of one sensory tract, may lead to the overactivation of an opposing sensory pathway, intensifying sensations of pain, heat, or cold allodynia. Recent literature underscores the significance of lesions involving specific thalamic nuclei, particularly the VPL and, to some extent, the ventral posterior medial nucleus (VPM). VPL nuclear damage, especially in the posterolateral and inferior portions, is associated with symptoms such as allodynia or heightened pain sensitivity, as confirmed by radiographic imaging.</p><p>Recent human and animal models have identified molecular mechanisms underlying pain sensitization. One such mechanism involves a microglia-mediated inflammatory pathway, which upregulates excitatory glutamate and downregulates the inhibitory γ-aminobutyric acid (GABA) molecule, leading to disinhibition within the thalamus. Notably, the microglial P2X7 receptor has been implicated in inducing cytokine release following ischemic events.<a class="bibr" href="#article-150900.r20" rid="article-150900.r20">[20]</a> This postischemic cytokine and interleukin release may increase glutamate levels, leading to neuronal hyperexcitability within the VPL.<a class="bibr" href="#article-150900.r21" rid="article-150900.r21">[21]</a> Recent investigations suggest that P2X7 receptor antagonism reduces central neuropathic pain.</p><p>Postischemic microglial activation triggers the release of brain-derived neurotrophic factor (BDNF), which is implicated in potassium-chloride cotransporter disruption and subsequent interference with neuronal hyperpolarization via chloride ions. This blockade ultimately attenuates the neuronal response to GABA.<a class="bibr" href="#article-150900.r22" rid="article-150900.r22">[22]</a> Poststroke inflammatory mediators like the NLRP3 inflammasome may also indirectly reduce GABA release from GABAergic neurons, leading to unopposed excitatory signals from specific thalamic regions, consequently affecting pain and sensory modulation.<a class="bibr" href="#article-150900.r23" rid="article-150900.r23">[23]</a> New pharmacotherapeutic agents, such as epoxyeicosatrienoic acids, have effectively alleviated mechanical allodynia in rodent CPSPS models by antagonizing microglia-mediated inflammatory cytokines. However, such pharmacotherapy awaits testing in human trials.</p><p>Extrathalamic lesions contributing to CPSPS have been proposed, as seen in patients with Wallenberg syndrome (lateral medullary syndrome), despite the absence of direct thalamic involvement. This form of central pain resembles trigeminal neuralgia symptoms, with facial allodynia and intermittent pain sensitivity resulting from a lesion of the ventral trigeminothalamic tract within the spinothalamic tract. Biochemical changes within the cerebrum may also occur following a peripheral nerve injury. One suggested pathway involves reduced serotonin release in the contralateral ventrobasal thalamic complex, potentially decreasing inhibitory inputs to the spinal cord and facilitating pain perception.<a class="bibr" href="#article-150900.r24" rid="article-150900.r24">[24]</a><a class="bibr" href="#article-150900.r25" rid="article-150900.r25">[25]</a><a class="bibr" href="#article-150900.r26" rid="article-150900.r26">[26]</a> Further research is needed to comprehend the complex pathophysiology of CPSPS fully. Hypotheses regarding intrathalamic and extrathalamic disinhibition offer a promising framework for elucidating the mechanisms behind the diverse symptomatology associated with this condition.</p></div><div id="article-150900.s6"><h2 id="_article-150900_s6_">History and Physical</h2><p>CPSPS presents variably, with symptoms including throbbing, stabbing, shooting, and burning pain with or without a trigger. Onset typically occurs 1 to 6 months poststroke, sometimes extending beyond a year, making timely recognition challenging. Symptoms may be categorized into broad groups: heat allodynia, cold allodynia, spontaneous dysaesthesia, evoked dysaesthesia, hyperalgesia, and paresthesias.</p><p>Accurate CPSPS identification requires a thorough clinical history and physical examination, as current practice is based on excluding other poststroke conditions. Common conditions like spasticity, headaches, shoulder pain, and musculoskeletal issues may be confounding factors. Musculoskeletal complaints, including shoulder pain found in up to 40% of patients with poststroke, must be carefully differentiated from CPSPS.<a class="bibr" href="#article-150900.r27" rid="article-150900.r27">[27]</a>  Understanding the temporal progression of CPSPS is crucial. Musculoskeletal and shoulder pain typically appear within 2 weeks to 3 months post-CVA.<a class="bibr" href="#article-150900.r28" rid="article-150900.r28">[28]</a> Spasticity and related pain may arise within 2 to 12 months.<a class="bibr" href="#article-150900.r29" rid="article-150900.r29">[29]</a><a class="bibr" href="#article-150900.r30" rid="article-150900.r30">[30]</a> Clinicians must differentiate these timelines through focused musculoskeletal and neurological exams to formulate an accurate diagnosis.</p><p>A focused history highlighting sensory aspects in CPSPS against motor or range-of-motion deficits in shoulder- and joint-related pain or spasticity helps clarify the presenting problem. The Ashworth Scale may diagnose and characterize spasticity severity.<a class="bibr" href="#article-150900.r31" rid="article-150900.r31">[31]</a> A comprehensive physical exam, particularly of cranial nerves and sensory function, helps localize lesions, differentiating CPSPS from other poststroke maladies. Evaluating the spinothalamic tract involves various modalities, including fine-needle pinprick tests, cold or hot stimuli application for pain sensation, and blunt objects for crude touch assessment. These methods facilitate lesion localization and identify responses to pain sensation, hyperalgesia, hypoalgesia, and evoked dysesthesias. Pain and paresthesias typically occur contralaterally to the CVA site in cases involving the thalamus, spinothalamic, or trigeminothalamic tract.</p></div><div id="article-150900.s7"><h2 id="_article-150900_s7_">Evaluation</h2><p>Objective findings should also be integrated within the clinical gestalt. No laboratory result or molecular inflammatory mediators have been identified for diagnosing CPSPS. Imaging techniques like MRI, fMRI, and computed tomography may be crucial in diagnosing CPSPS and localizing the inciting lesion. Combining these imaging modalities with a thorough history and physical exam enhances spatial lesion identification, enabling clinicians to arrive at an accurate diagnosis more quickly.</p></div><div id="article-150900.s8"><h2 id="_article-150900_s8_">Treatment / Management</h2><p>CPSPS management is controversial, prompting an exploration of diverse therapeutic approaches. Treatment strategies may be broadly categorized into nonpharmacologic and pharmacologic interventions. Nonpharmacologic approaches include physical therapy, stretching, acupuncture, and transcranial magnetic and deep brain stimulation. Pharmacologic treatment includes agents like anticonvulsants, antidepressants, corticosteroids, and opioids.<a class="bibr" href="#article-150900.r32" rid="article-150900.r32">[32]</a><a class="bibr" href="#article-150900.r33" rid="article-150900.r33">[33]</a></p><p>
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<b>Pharmacotherapy</b>
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</p><p>CPSPS pharmacotherapy remains contentious, with literature supporting different treatment models. A common first-line medication is amitriptyline. This tricyclic antidepressant inhibits serotonin and norepinephrine reuptake.<a class="bibr" href="#article-150900.r34" rid="article-150900.r34">[34]</a> Other initial pharmacotherapeutic options include pregabalin, gabapentin, and lamotrigine. Gabapentinoids, including pregabalin and gabapentin, indirectly reduce neurotransmitter release by binding to α2δ subunits within calcium ion channels, effectively managing CPSPS symptoms.<a class="bibr" href="#article-150900.r35" rid="article-150900.r35">[35]</a></p><p>Lamotrigine, an anticonvulsant that blocks voltage-gated sodium channels, has also been studied for its pain-modulating effects on CPSPS.<a class="bibr" href="#article-150900.r36" rid="article-150900.r36">[36]</a><a class="bibr" href="#article-150900.r37" rid="article-150900.r37">[37]</a> Some literature supports combining amitriptyline and a gabapentinoid to enhance pain control if monotherapy fails to provide adequate pain relief.<a class="bibr" href="#article-150900.r38" rid="article-150900.r38">[38]</a> The Canadian Best Stroke Practice and the Royal College of Physicians recommend amitriptyline, gabapentin, pregabalin, and lamotrigine as effective first- or second-line agents.<a class="bibr" href="#article-150900.r39" rid="article-150900.r39">[39]</a><a class="bibr" href="#article-150900.r40" rid="article-150900.r40">[40]</a></p><p>Common alternatives for failed first-line agents include serotonin and norepinephrine reuptake inhibitors, anticonvulsants like carbamazepine, and opioids such as tramadol.<a class="bibr" href="#article-150900.r41" rid="article-150900.r41">[41]</a> However, opioids are generally avoided due to their abuse potential. Less common options include phenytoin, pamidronate, steroids, lidocaine, and ketamine. Phenytoin has shown some success, albeit with limited research.<a class="bibr" href="#article-150900.r42" rid="article-150900.r42">[42]</a> A network meta-analysis of 13 randomized controlled trials demonstrated significant pain reduction with pamidronate and prednisone compared to placebo and conventional agents like pregabalin and carbamazepine. Ketamine's efficacy in CPSPS remains uncertain due to limited research.<a class="bibr" href="#article-150900.r43" rid="article-150900.r43">[43]</a><a class="bibr" href="#article-150900.r44" rid="article-150900.r44">[44]</a><a class="bibr" href="#article-150900.r45" rid="article-150900.r45">[45]</a> Lidocaine has shown only modest pain control.<a class="bibr" href="#article-150900.r46" rid="article-150900.r46">[46]</a> Although not specifically studied for CPSPS, cannabis-based derivatives, and topical agents have demonstrated some efficacy in modulating neuropathic pain.<a class="bibr" href="#article-150900.r47" rid="article-150900.r47">[47]</a> The use of these agents in CPSP warrants further investigation to better understand their potential benefits.</p><p>
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<b>Nonpharmacological Interventions</b>
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</p><p>Repetitive transcranial magnetic stimulation (rTMS) has emerged as a promising nonpharmacological intervention for alleviating neuropathic pain and CPSPS symptoms. This technique involves applying transcranial electromagnets on the scalp to generate magnetic impulses, which potentiate or inhibit nerve signals. High-frequency rTMS (over 1 hertz) appears more effective than low-frequency stimulation.<a class="bibr" href="#article-150900.r48" rid="article-150900.r48">[48]</a><a class="bibr" href="#article-150900.r49" rid="article-150900.r49">[49]</a> The mechanism may involve modulating inhibitory signals between cerebral hemispheres and descending pain circuits.<a class="bibr" href="#article-150900.r50" rid="article-150900.r50">[50]</a><a class="bibr" href="#article-150900.r51" rid="article-150900.r51">[51]</a> Although recent literature supports this modality's effectiveness in pain control, long-term outcomes beyond 3 months remain underexplored.<a class="bibr" href="#article-150900.r52" rid="article-150900.r52">[52]</a></p><p>Placement of electromagnets over the M1 region or territory of the brain has demonstrated pain relief in various trials.<a class="bibr" href="#article-150900.r53" rid="article-150900.r53">[53]</a><a class="bibr" href="#article-150900.r54" rid="article-150900.r54">[54]</a><a class="bibr" href="#article-150900.r55" rid="article-150900.r55">[55]</a> Motor-evoked potentials in intrinsic hand muscles can guide accurate coil placement during treatment.<a class="bibr" href="#article-150900.r56" rid="article-150900.r56">[56]</a> Deep brain stimulation, particularly targeting the brain's M1 section, has shown promise in treating refractory CPSPS, resulting in significant pain reduction.<a class="bibr" href="#article-150900.r57" rid="article-150900.r57">[57]</a><a class="bibr" href="#article-150900.r58" rid="article-150900.r58">[58]</a> Neuroplastic changes observed via fMRI indicate pain modulation through tracts beyond the spinothalamic tract, particularly the primary motor cortex and corticothalamic and thalamocortical loops.<a class="bibr" href="#article-150900.r59" rid="article-150900.r59">[59]</a><a class="bibr" href="#article-150900.r60" rid="article-150900.r60">[60]</a> However, due to its invasiveness, deep brain stimulation is typically reserved for more treatment-resistant CPSPS cases.</p><p>Acupuncture shows promise in reducing poststroke pain, though empirical support is limited. A systematic review indicated consistent pain reduction compared to pharmacotherapy, albeit with caution due to potential biases in some studies.<a class="bibr" href="#article-150900.r61" rid="article-150900.r61">[61]</a><a class="bibr" href="#article-150900.r62" rid="article-150900.r62">[62]</a> Further research is warranted to establish the efficacy of acupuncture and derivatives like electroacupuncture.<a class="bibr" href="#article-150900.r63" rid="article-150900.r63">[63]</a> Physical therapy, including stretching and exercise, is potentially beneficial but lacks sufficient empirical validation for its role in relieving CPSPS. However, physical therapy may indirectly improve functional status and quality of life in affected individuals by impacting pain related to stroke progression and spasticity.</p></div><div id="article-150900.s9"><h2 id="_article-150900_s9_">Differential Diagnosis</h2><p>Neuropathic pain's prevalence is 3% to 17%. Thus, distinguishing it from similar disease states is vital.<a class="bibr" href="#article-150900.r64" rid="article-150900.r64">[64]</a> A thorough evaluation requires collaboration among neurologists, pain specialists, general practitioners, and other relevant healthcare professionals. Conditions unrelated to stroke but involving central neuropathic pain include multiple sclerosis, spinal cord trauma, syringomyelia, Parkinson disease-related pain, and psychogenic pain disorders like conversion or somatic symptom disorder. A comprehensive assessment involving clinical history, neurological examination, and diagnostic imaging is crucial in differentiating CPSPS from these conditions. </p><p>CPSPS may not present until many months after the initial CVA event. As mentioned earlier, post-CVA pathology must be effectively ruled out before making a diagnosis of CPSPS. Besides other neuropathic pain sources, headache syndromes and musculoskeletal disorders must be distinguished from CPSPS.</p></div><div id="article-150900.s10"><h2 id="_article-150900_s10_">Prognosis</h2><p>Data on the chronicity or duration timeline of CPSPs is limited. Some may experience improvement or remission due to neuroplastic changes or treatment. Others face persistent challenges influenced by the lesion's severity or problematic location. A more thorough understanding of CPSP's timeline and recovery becomes feasible as awareness grows among clinicians and diagnostic precision improves.</p></div><div id="article-150900.s11"><h2 id="_article-150900_s11_">Complications</h2><p>PSPS is associated with a significant psychological burden. Patients with this condition are at increased risk for worsening anxiety and depression. Chronic pain may limit mobility and function, impacting daily activities and causing a decline in overall physical health. In severe cases, the chronicity of CPSPS and its sequelae can contribute to the development of behavioral issues, major depressive disorder, and suicidal ideation. CPSPS management's complexity also creates treatment adherence challenges, potentially leading to suboptimal pain control and a poorer prognosis. Early identification of these psychological and behavioral manifestations by healthcare providers is crucial to optimizing treatment adherence, therapeutic outcomes, and patient well-being.</p></div><div id="article-150900.s12"><h2 id="_article-150900_s12_">Deterrence and Patient Education</h2><p>CPSPS typically assumes a chronic course, with pain lasting months or even years after the stroke. Patients often exhibit heightened sensitivity to stimuli like touch or temperature changes, experiencing normal sensations as painful. This chronic pain significantly impacts daily life, decreasing mobility, sleep, and quality of life. Managing CPSPS involves an interprofessional approach using medications, physical therapy, and psychological support strategies. Treatment plans may require ongoing adjustments to find the most effective combination. Rehabilitation programs, such as physical and occupational therapy, can improve function, mobility, and pain severity. Management should be tailored to each individual's experience of CPSPS due to its varied presentation.</p></div><div id="article-150900.s13"><h2 id="_article-150900_s13_">Enhancing Healthcare Team Outcomes </h2><p>Addressing CPSPS's multifaceted nature necessitates a collaborative approach among healthcare professionals. Pharmacists are essential in managing CPSPS, ensuring optimal medication regimens, and addressing potential side effects in coordination with neurologists. Radiologists are vital in the diagnostic process, using advanced imaging to localize lesions for appropriate treatment planning precisely. Neurologists are the primary CPSPS clinicians who conduct evaluations, create treatment plans, and prescribe suitable medications. These professionals' understanding of CPSPS's neural pathways is vital for targeted interventions. Collaboration with radiologists integrates clinical and imaging data, improving diagnostic precision.</p><p>Primary care providers act as care coordinators for patients with CPSPS, conducting initial assessments, making specialist referrals, and managing ongoing care. These professionals' holistic approach should include general health monitoring and addressing patient concerns, ensuring a cohesive healthcare journey. Synergy among pharmacists, radiologists, neurologists, and primary care providers creates a comprehensive, patient-centered approach to CPSPS. This collaboration aims to alleviate symptoms and improve overall quality of life. Refining treatment strategies and enhancing collective expertise will advance care and outcomes for individuals with CPSPS as research progresses.</p></div><div id="article-150900.s14"><h2 id="_article-150900_s14_">Review Questions</h2><ul><li class="half_rhythm"><div>
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</div></li></ul></div><div class="floats-group" id="article-150900.s15"><div class="iconblock whole_rhythm clearfix ten_col fig" id="figarticle150900imagef1" co-legend-rid="figlgndarticle150900imagef1"><a href="/books/NBK604196/figure/article-150900.image.f1/?report=objectonly" target="object" title="Figure" class="img_link icnblk_img figpopup" rid-figpopup="figarticle150900imagef1" rid-ob="figobarticle150900imagef1"><img class="small-thumb" src="/books/NBK604196/bin/CPSPS__Pathways.gif" src-large="/books/NBK604196/bin/CPSPS__Pathways.jpg" alt="Central Poststroke Pain Syndrome, Potential Sites of Involvement" /></a><div class="icnblk_cntnt" id="figlgndarticle150900imagef1"><h4 id="article-150900.image.f1"><a href="/books/NBK604196/figure/article-150900.image.f1/?report=objectonly" target="object" rid-ob="figobarticle150900imagef1">Figure</a></h4><p class="float-caption no_bottom_margin">Central Poststroke Pain Syndrome, Potential Sites of Involvement. Lesions at various levels of the spinothalamic tract, including the thalamus, can contribute to central poststroke pain syndrome. Thalamic lesions were initially thought to be solely responsible, <a href="/books/NBK604196/figure/article-150900.image.f1/?report=objectonly" target="object" rid-ob="figobarticle150900imagef1">(more...)</a></p></div></div></div><div id="article-150900.s16"><h2 id="_article-150900_s16_">References</h2><dl class="temp-labeled-list"><dl class="bkr_refwrap"><dt>1.</dt><dd><div class="bk_ref" id="article-150900.r1">Jang SH, Lee J, Yeo SS. Central post-stroke pain due to injury of the spinothalamic tract in patients with cerebral infarction: a diffusion tensor tractography imaging study. <span><span class="ref-journal">Neural Regen Res. </span>2017 Dec;<span class="ref-vol">12</span>(12):2021-2024.</span> [<a href="/pmc/articles/PMC5784350/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC5784350</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/29323041" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 29323041</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>2.</dt><dd><div class="bk_ref" id="article-150900.r2">Vartiainen N, Perchet C, Magnin M, Creac'h C, Convers P, Nighoghossian N, Mauguière F, Peyron R, Garcia-Larrea L. 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Cannabis-based medicines for chronic neuropathic pain in adults. <span><span class="ref-journal">Cochrane Database Syst Rev. </span>2018 Mar 07;<span class="ref-vol">3</span>(3):CD012182.</span> [<a href="/pmc/articles/PMC6494210/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC6494210</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/29513392" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 29513392</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>48.</dt><dd><div class="bk_ref" id="article-150900.r48">Pan LJ, Zhu HQ, Zhang XA, Wang XQ. The mechanism and effect of repetitive transcranial magnetic stimulation for post-stroke pain. <span><span class="ref-journal">Front Mol Neurosci. </span>2022;<span class="ref-vol">15</span>:1091402.</span> [<a href="/pmc/articles/PMC9855274/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC9855274</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/36683849" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 36683849</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>49.</dt><dd><div class="bk_ref" id="article-150900.r49">Borckardt JJ, Reeves ST, Beam W, Jensen MP, Gracely RH, Katz S, Smith AR, Madan A, Patterson D, George MS. A randomized, controlled investigation of motor cortex transcranial magnetic stimulation (TMS) effects on quantitative sensory measures in healthy adults: evaluation of TMS device parameters. <span><span class="ref-journal">Clin J Pain. </span>2011 Jul-Aug;<span class="ref-vol">27</span>(6):486-94.</span> [<a href="/pmc/articles/PMC3111894/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC3111894</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/21415720" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 21415720</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>50.</dt><dd><div class="bk_ref" id="article-150900.r50">Guilbaud G, Benoist JM, Levante A, Gautron M, Willer JC. Primary somatosensory cortex in rats with pain-related behaviours due to a peripheral mononeuropathy after moderate ligation of one sciatic nerve: neuronal responsivity to somatic stimulation. <span><span class="ref-journal">Exp Brain Res. </span>1992;<span class="ref-vol">92</span>(2):227-45.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/1337325" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 1337325</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>51.</dt><dd><div class="bk_ref" id="article-150900.r51">Morishita T, Inoue T. Brain Stimulation Therapy for Central Post-Stroke Pain from a Perspective of Interhemispheric Neural Network Remodeling. <span><span class="ref-journal">Front Hum Neurosci. </span>2016;<span class="ref-vol">10</span>:166.</span> [<a href="/pmc/articles/PMC4838620/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC4838620</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/27148019" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 27148019</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>52.</dt><dd><div class="bk_ref" id="article-150900.r52">Yang S, Chang MC. Effect of Repetitive Transcranial Magnetic Stimulation on Pain Management: A Systematic Narrative Review. <span><span class="ref-journal">Front Neurol. </span>2020;<span class="ref-vol">11</span>:114.</span> [<a href="/pmc/articles/PMC7040236/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC7040236</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/32132973" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 32132973</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>53.</dt><dd><div class="bk_ref" id="article-150900.r53">Zhao CG, Sun W, Ju F, Jiang S, Wang H, Sun XL, Mou X, Yuan H. Analgesic Effects of Navigated Repetitive Transcranial Magnetic Stimulation in Patients With Acute Central Poststroke Pain. <span><span class="ref-journal">Pain Ther. </span>2021 Dec;<span class="ref-vol">10</span>(2):1085-1100.</span> [<a href="/pmc/articles/PMC8586137/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC8586137</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/33866522" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 33866522</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>54.</dt><dd><div class="bk_ref" id="article-150900.r54">Ojala J, Vanhanen J, Harno H, Lioumis P, Vaalto S, Kaunisto MA, Putaala J, Kangasniemi M, Kirveskari E, Mäkelä JP, Kalso E. A Randomized, Sham-Controlled Trial of Repetitive Transcranial Magnetic Stimulation Targeting M1 and S2 in Central Poststroke Pain: A Pilot Trial. <span><span class="ref-journal">Neuromodulation. </span>2022 Jun;<span class="ref-vol">25</span>(4):538-548.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/35670063" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 35670063</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>55.</dt><dd><div class="bk_ref" id="article-150900.r55">Kobayashi M, Fujimaki T, Mihara B, Ohira T. Repetitive transcranial magnetic stimulation once a week induces sustainable long-term relief of central poststroke pain. <span><span class="ref-journal">Neuromodulation. </span>2015 Jun;<span class="ref-vol">18</span>(4):249-54.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/25906811" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 25906811</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>56.</dt><dd><div class="bk_ref" id="article-150900.r56">Betancur DFA, Tarragó MDGL, Torres ILDS, Fregni F, Caumo W. Central Post-Stroke Pain: An Integrative Review of Somatotopic Damage, Clinical Symptoms, and Neurophysiological Measures. <span><span class="ref-journal">Front Neurol. </span>2021;<span class="ref-vol">12</span>:678198.</span> [<a href="/pmc/articles/PMC8416310/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC8416310</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/34484097" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 34484097</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>57.</dt><dd><div class="bk_ref" id="article-150900.r57">Holland MT, Zanaty M, Li L, Thomsen T, Beeghly JH, Greenlee JDW, Reddy CG. Successful deep brain stimulation for central post-stroke pain and dystonia in a single operation. <span><span class="ref-journal">J Clin Neurosci. </span>2018 Apr;<span class="ref-vol">50</span>:190-193.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/29396066" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 29396066</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>58.</dt><dd><div class="bk_ref" id="article-150900.r58">Akyuz G, Kuru P. 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Apipuncture treatment for central post-stroke pain. <span><span class="ref-journal">J Altern Complement Med. </span>2010 Feb;<span class="ref-vol">16</span>(2):223-4.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/20180697" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 20180697</span></a>]</div></dd></dl><dl class="bkr_refwrap"><dt>64.</dt><dd><div class="bk_ref" id="article-150900.r64">Cavalli E, Mammana S, Nicoletti F, Bramanti P, Mazzon E. The neuropathic pain: An overview of the current treatment and future therapeutic approaches. <span><span class="ref-journal">Int J Immunopathol Pharmacol. </span>2019 Jan-Dec;<span class="ref-vol">33</span>:2058738419838383.</span> [<a href="/pmc/articles/PMC6431761/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC6431761</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/30900486" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 30900486</span></a>]</div></dd></dl></dl></div><div><dl class="temp-labeled-list small"><dl class="bkr_refwrap"><dt></dt><dd><div><p class="no_top_margin">
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<b>Disclosure: </b>Kingsley Anosike declares no relevant financial relationships with ineligible companies.</p></div></dd></dl><dl class="bkr_refwrap"><dt></dt><dd><div><p class="no_top_margin">
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<b>Disclosure: </b>Senthil Vel Rajan Rajaram Manoharan declares no relevant financial relationships with ineligible companies.</p></div></dd></dl></dl></div></div></div><div class="fm-sec"><h2 id="_NBK604196_pubdet_">Publication Details</h2><h3>Author Information and Affiliations</h3><p class="contrib-group"><h4>Authors</h4><span itemprop="author">Kingsley C. Anosike</span><sup>1</sup>; <span itemprop="author">Senthil Vel Rajan Rajaram Manoharan</span><sup>2</sup>.</p><h4>Affiliations</h4><div class="affiliation"><sup>1</sup> Brown University</div><div class="affiliation"><sup>2</sup> Huntsville Hospital/ University of Alabama School at Birmingham</div><h3>Publication History</h3><p class="small">Last Update: <span itemprop="dateModified">June 7, 2024</span>.</p><h3>Copyright</h3><div><div class="half_rhythm"><a href="/books/about/copyright/">Copyright</a> © 2025, StatPearls Publishing LLC.<p class="small">
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This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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(<a href="https://creativecommons.org/licenses/by-nc-nd/4.0/" ref="pagearea=meta&targetsite=external&targetcat=link&targettype=uri">
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http://creativecommons.org/licenses/by-nc-nd/4.0/
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</a>), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.
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</p></div></div><h3>Publisher</h3><p><a href="https://www.statpearls.com/" ref="pagearea=page-banner&targetsite=external&targetcat=link&targettype=publisher">StatPearls Publishing</a>, Treasure Island (FL)</p><h3>NLM Citation</h3><p>Anosike KC, Rajaram Manoharan SVR. Central Post-Stroke Pain Syndrome. [Updated 2024 Jun 7]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. <span class="bk_cite_avail"></span></p></div><div class="small-screen-prev"></div><div class="small-screen-next"></div></article><article data-type="fig" id="figobarticle150900imagef1"><div id="article-150900.image.f1" class="figure bk_fig"><div class="graphic"><img data-src="/books/NBK604196/bin/CPSPS__Pathways.jpg" alt="Central Poststroke Pain Syndrome, Potential Sites of Involvement" /></div><div class="caption"><p>Central Poststroke Pain Syndrome, Potential Sites of Involvement. Lesions at various levels of the spinothalamic tract, including the thalamus, can contribute to central poststroke pain syndrome. Thalamic lesions were initially thought to be solely responsible, but later research identified the involvement of the lateral medulla, pons, lenticulocapsular area, and cortex. The condition may result from the loss of somatosensory integration and changes in cortical plasticity. Betancur DFA, da Graça Lopes Tarragó M, da Silva Torres IL, Fregni F, Caumo W. Central post-stroke pain: an integrative review of somatotopic damage, clinical symptoms, and neurophysiological measures. F<i>ront Neurol.</i> 2021;12:678198.  doi: 10.3389/fneur.2021.678198.</p></div></div></article></div><div id="jr-scripts"><script src="/corehtml/pmc/jatsreader/ptpmc_3.22/js/libs.min.js"> </script><script src="/corehtml/pmc/jatsreader/ptpmc_3.22/js/jr.min.js"> </script></div></div>
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