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<meta name="keywords" content="C0234166, hyperekplexia, hyperekplexias, hyperexplexia, sign or symptom, startle syndrome, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="Hereditary hyperekplexia is a condition in which affected infants have increased muscle tone (hypertonia) and an exaggerated startle reaction to unexpected stimuli, especially loud noises. Following the startle reaction, infants experience a brief period in which they are very rigid and unable to move. During these rigid periods, some infants stop breathing, which, if prolonged, can be fatal. Infants with hereditary hyperekplexia have hypertonia at all times, except when they are sleeping.\n\nOther signs and symptoms of hereditary hyperekplexia can include muscle twitches when falling asleep (hypnagogic myoclonus) and movements of the arms or legs while asleep. Some infants, when tapped on the nose, extend their head forward and have spasms of the limb and neck muscles. Rarely, infants with hereditary hyperekplexia experience recurrent seizures (epilepsy).\n\nThe signs and symptoms of hereditary hyperekplexia typically fade by age 1. However, older individuals with hereditary hyperekplexia may still startle easily and have periods of rigidity, which can cause them to fall down. They may also continue to have hypnagogic myoclonus or movements during sleep. As they get older, individuals with this condition may have a low tolerance for crowded places and loud noises. People with hereditary hyperekplexia who have epilepsy have the seizure disorder throughout their lives.\n\nHereditary hyperekplexia may explain some cases of sudden infant death syndrome (SIDS), which is a major cause of unexplained death in babies younger than 1 year." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Hyperekplexia (Concept Id: C0234166)
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<!--
UID=488800
ConceptID=C0234166
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Hyperekplexia</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>488800</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information."><span class="highlight" style="background-color:">C0234166</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonym:</td>
<td>Hyperekplexias</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Hyperekplexia (19557000); Startle syndrome (19557000); Hyperexplexia (19557000)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help" data-jig="ncbipopper" href="#target-gene-related">Related genes:<img src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div id="target-gene-related" class="display-none">
Gene(s) associated with related conditions. For conditions<br />
in a hierarchy, the parent condition will list the genes<br />
associated with the children conditions.</div></td>
<td><a target="_blank" href="/gene/84896">ATAD1</a>, <a target="_blank" href="/gene/23229">ARHGEF9</a>, <a target="_blank" href="/gene/10243">GPHN</a>, <a target="_blank" href="/gene/9152">SLC6A5</a>, <a target="_blank" href="/gene/2743">GLRB</a>, <a target="_blank" href="/gene/2741">GLRA1</a></td></tr><tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0017658" target="_blank">MONDO:0017658</a></td></tr>
<tr><td>Orphanet:</td>
<td><a target="_blank" title="Orphanet: The portal for rare diseases and orphan drugs" href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&amp;Expert=306773">ORPHA306773</a></td></tr></tbody></table></div><div class="rprt-body jig-ncbiinpagenav" data-jigconfig="smoothScroll: false, gotoTopLink: true, gotoTopLinkText: '', gotoTopLinkAttrs: {'title': 'Go to the top of the page'},allHeadingLevels: ['h1'], topOfPageTOC: true, tocId: 'my-toc'"><div id="rprt-tabs-1" class="rprt-tab"><div id="tb-termsProp-1"><div class="leftCol mgCol"><div>
<div class="portlet mgSection" id="ID_100">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">Hereditary hyperekplexia is a condition in which affected infants have increased muscle tone (hypertonia) and an exaggerated startle reaction to unexpected stimuli, especially loud noises. Following the startle reaction, infants experience a brief period in which they are very rigid and unable to move. During these rigid periods, some infants stop breathing, which, if prolonged, can be fatal. Infants with hereditary hyperekplexia have hypertonia at all times, except when they are sleeping.<br /><br />Other signs and symptoms of hereditary hyperekplexia can include muscle twitches when falling asleep (hypnagogic myoclonus) and movements of the arms or legs while asleep. Some infants, when tapped on the nose, extend their head forward and have spasms of the limb and neck muscles. Rarely, infants with hereditary hyperekplexia experience recurrent seizures (epilepsy).<br /><br />The signs and symptoms of hereditary hyperekplexia typically fade by age 1. However, older individuals with hereditary hyperekplexia may still startle easily and have periods of rigidity, which can cause them to fall down. They may also continue to have hypnagogic myoclonus or movements during sleep. As they get older, individuals with this condition may have a low tolerance for crowded places and loud noises. People with hereditary hyperekplexia who have epilepsy have the seizure disorder throughout their lives.<br /><br />Hereditary hyperekplexia may explain some cases of sudden infant death syndrome (SIDS), which is a major cause of unexplained death in babies younger than 1 year. [from <a title="MedlinePlus Genetics" href="https://medlineplus.gov/genetics/" class="defSource" target="_blank">MedlinePlus Genetics</a>]</div>
</div>
<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0234166[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=488800">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1260/" ref="ncbi_uid=488800">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=488800" ref="ncbi_uid=488800">V</a></span></span><span class="TLline">Hyperekplexia</span><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C1845102[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=375581">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=375581" target="_blank" href="/omim/300429">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1260/" ref="ncbi_uid=375581">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=375581" ref="ncbi_uid=375581">V</a></span></span><span class="TLline"><a href="/medgen/375581" ref="tree=GTR&amp;ncbi_uid=375581&amp;link_uid=375581" title="View MedGen record for 'Developmental and epileptic encephalopathy, 8'">Developmental and epileptic encephalopathy, 8</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C1835614[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=332019">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=332019" target="_blank" href="/omim/149400">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=332019" ref="ncbi_uid=332019">V</a></span></span><span class="TLline"><a href="/medgen/332019" ref="tree=GTR&amp;ncbi_uid=332019&amp;link_uid=332019" title="View MedGen record for 'Hereditary hyperekplexia'">Hereditary hyperekplexia</a></span><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C4551954[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1647581">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=1647581" target="_blank" href="/omim/149400">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1260/" ref="ncbi_uid=1647581">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=1647581" ref="ncbi_uid=1647581">V</a></span></span><span class="TLline"><a href="/medgen/1647581" ref="tree=GTR&amp;ncbi_uid=1647581&amp;link_uid=1647581" title="View MedGen record for 'Hyperekplexia 1'">Hyperekplexia 1</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C3553291[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=766205">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=766205" target="_blank" href="/omim/138492">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1260/" ref="ncbi_uid=766205">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=766205" ref="ncbi_uid=766205">V</a></span></span><span class="TLline"><a href="/medgen/766205" ref="tree=GTR&amp;ncbi_uid=766205&amp;link_uid=766205" title="View MedGen record for 'Hyperekplexia 2'">Hyperekplexia 2</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C3553288[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=766202">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=766202" target="_blank" href="/omim/614618">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1260/" ref="ncbi_uid=766202">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=766202" ref="ncbi_uid=766202">V</a></span></span><span class="TLline"><a href="/medgen/766202" ref="tree=GTR&amp;ncbi_uid=766202&amp;link_uid=766202" title="View MedGen record for 'Hyperekplexia 3'">Hyperekplexia 3</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C4693933[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1642659">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=1642659" target="_blank" href="/omim/614452">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=1642659" ref="ncbi_uid=1642659">V</a></span></span><span class="TLline"><a href="/medgen/1642659" ref="tree=GTR&amp;ncbi_uid=1642659&amp;link_uid=1642659" title="View MedGen record for 'Hyperekplexia 4'">Hyperekplexia 4</a></span></li></ul></li></ul></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/21047" ref="tree=MeSH" title="MedGen record for Pathological Conditions, Signs and Symptoms">Pathological Conditions, Signs and Symptoms</a></span><ul><li><span class="TLline"><a href="/medgen/18325" ref="tree=MeSH" title="MedGen record for Pathological process">Pathological process</a></span><ul><li><span class="TLline"><a href="/medgen/4347" ref="tree=MeSH" title="MedGen record for Disease">Disease</a></span><ul><li><span class="TLline"><a href="/medgen/232130" ref="tree=MeSH" title="MedGen record for Disorder by Site">Disorder by Site</a></span><ul><li><span class="TLline"><a href="/medgen/14336" ref="tree=MeSH" title="MedGen record for Disorder of nervous system">Disorder of nervous system</a></span><ul><li><span class="TLline"><a href="/medgen/3306" ref="tree=MeSH" title="MedGen record for Disorder of the central nervous system">Disorder of the central nervous system</a></span><ul><li><span class="matched_ds">Hyperekplexia</span><ul><li><span class="TLline"><a href="/medgen/375581" ref="tree=MeSH" title="MedGen record for Developmental and epileptic encephalopathy, 8">Developmental and epileptic encephalopathy, 8</a></span></li><li><span class="TLline"><a href="/medgen/332019" ref="tree=MeSH" title="MedGen record for Hereditary hyperekplexia">Hereditary hyperekplexia</a></span><ul><li><span class="TLline"><a href="/medgen/1647581" ref="tree=MeSH" title="MedGen record for Hyperekplexia 1">Hyperekplexia 1</a></span></li><li><span class="TLline"><a href="/medgen/766205" ref="tree=MeSH" title="MedGen record for Hyperekplexia 2">Hyperekplexia 2</a></span></li><li><span class="TLline"><a href="/medgen/766202" ref="tree=MeSH" title="MedGen record for Hyperekplexia 3">Hyperekplexia 3</a></span></li><li><span class="TLline"><a href="/medgen/1642659" ref="tree=MeSH" title="MedGen record for Hyperekplexia 4">Hyperekplexia 4</a></span></li></ul></li><li><span class="TLline"><a href="/medgen/1683565" ref="tree=MeSH" title="MedGen record for Sporadic hyperekplexia">Sporadic hyperekplexia</a></span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
</div>
<div class="portlet mgSection" id="ID_105">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/39693598">Clinical and Paraclinical Characterizations, Management, and Prognosis in DPPX Antibody-Associated Encephalitis: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Li EC,
Zhang TY,
Cai MT,
Su SY,
Shen CH,
Lai QL,
Zhang YX</span><br />
<span class="medgenPMjournal">Neurol Neuroimmunol Neuroinflamm</span>
2025 Mar;12(2):e200350.
Epub 2024 Dec 18
doi: 10.1212/NXI.0000000000200350.
<span class="bold">PMID: </span><a href="/pubmed/39693598" target="_blank">39693598</a><a href="/pmc/articles/PMC11658814" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/39223854">Neonatal Hyperekplexia: Is It Still a Diagnostic Challenge? Evidence From a Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Falsaperla R,
Sortino V,
Giacchi V,
Saporito MAN,
Marino S,
Tardino LG,
Marino L,
Gennaro A,
Ruggieri M,
Barberi C,
Polizzi A</span><br />
<span class="medgenPMjournal">J Child Neurol</span>
2024 Oct;39(11-12):415-424.
Epub 2024 Sep 2
doi: 10.1177/08830738241273425.
<span class="bold">PMID: </span><a href="/pubmed/39223854" target="_blank">39223854</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23642846">Differential diagnosis of epileptic seizures in infancy including the neonatal period.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cross JH</span><br />
<span class="medgenPMjournal">Semin Fetal Neonatal Med</span>
2013 Aug;18(4):192-5.
Epub 2013 Apr 30
doi: 10.1016/j.siny.2013.04.003.
<span class="bold">PMID: </span><a href="/pubmed/23642846" target="_blank">23642846</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22hyperekplexia%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (10)</a></div></div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/34573299">Epilepsy and BRAF Mutations: Phenotypes, Natural History and Genotype-Phenotype Correlations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Battaglia DI,
Gambardella ML,
Veltri S,
Contaldo I,
Chillemi G,
Veredice C,
Quintiliani M,
Leoni C,
Onesimo R,
Verdolotti T,
Radio FC,
Martinelli D,
Trivisano M,
Specchio N,
Dravet C,
Tartaglia M,
Zampino G</span><br />
<span class="medgenPMjournal">Genes (Basel)</span>
2021 Aug 26;12(9)
doi: 10.3390/genes12091316.
<span class="bold">PMID: </span><a href="/pubmed/34573299" target="_blank">34573299</a><a href="/pmc/articles/PMC8470450" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34379238">Advances in hyperekplexia and other startle syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhan FX,
Wang SG,
Cao L</span><br />
<span class="medgenPMjournal">Neurol Sci</span>
2021 Oct;42(10):4095-4107.
Epub 2021 Aug 11
doi: 10.1007/s10072-021-05493-8.
<span class="bold">PMID: </span><a href="/pubmed/34379238" target="_blank">34379238</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29053777">Movement disorders with neuronal antibodies: syndromic approach, genetic parallels and pathophysiology.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Balint B,
Vincent A,
Meinck HM,
Irani SR,
Bhatia KP</span><br />
<span class="medgenPMjournal">Brain</span>
2018 Jan 1;141(1):13-36.
doi: 10.1093/brain/awx189.
<span class="bold">PMID: </span><a href="/pubmed/29053777" target="_blank">29053777</a><a href="/pmc/articles/PMC5888977" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21496599">Startle syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bhidayasiri R,
Truong DD</span><br />
<span class="medgenPMjournal">Handb Clin Neurol</span>
2011;100:421-30.
doi: 10.1016/B978-0-444-52014-2.00032-X.
<span class="bold">PMID: </span><a href="/pubmed/21496599" target="_blank">21496599</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16713923">Startle syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bakker MJ,
van Dijk JG,
van den Maagdenberg AM,
Tijssen MA</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2006 Jun;5(6):513-24.
doi: 10.1016/S1474-4422(06)70470-7.
<span class="bold">PMID: </span><a href="/pubmed/16713923" target="_blank">16713923</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (51)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/32706098">Hyperekplexia: a surprise diagnosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Yayıcı Köken Ö,
Toptaş Dedeoğlu Ö,
Aksoy A,
Yüksel D</span><br />
<span class="medgenPMjournal">Neurol Neurochir Pol</span>
2020;54(5):473-474.
Epub 2020 Jul 24
doi: 10.5603/PJNNS.a2020.0057.
<span class="bold">PMID: </span><a href="/pubmed/32706098" target="_blank">32706098</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25687201">Paroxysmal nonepileptic motor phenomena in newborn.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Orivoli S,
Facini C,
Pisani F</span><br />
<span class="medgenPMjournal">Brain Dev</span>
2015 Oct;37(9):833-9.
Epub 2015 Feb 14
doi: 10.1016/j.braindev.2015.01.002.
<span class="bold">PMID: </span><a href="/pubmed/25687201" target="_blank">25687201</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21626542">Milestones in clinical neurophysiology.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hallett M,
Rothwell J</span><br />
<span class="medgenPMjournal">Mov Disord</span>
2011 May;26(6):958-67.
doi: 10.1002/mds.23572.
<span class="bold">PMID: </span><a href="/pubmed/21626542" target="_blank">21626542</a><a href="/pmc/articles/PMC3105364" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16713923">Startle syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bakker MJ,
van Dijk JG,
van den Maagdenberg AM,
Tijssen MA</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2006 Jun;5(6):513-24.
doi: 10.1016/S1474-4422(06)70470-7.
<span class="bold">PMID: </span><a href="/pubmed/16713923" target="_blank">16713923</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8858191">Myoclonus.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Brown P</span><br />
<span class="medgenPMjournal">Curr Opin Neurol</span>
1996 Aug;9(4):314-6.
doi: 10.1097/00019052-199608000-00013.
<span class="bold">PMID: </span><a href="/pubmed/8858191" target="_blank">8858191</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (158)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/39414323">Neonatal hyperekplexia: a non-epileptic paroxysmal movement disorder with a novel homozygous mutation in the GLRB gene, a seizure mimic.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fatima H,
Shabnam S,
Tripathi S,
Kumar M</span><br />
<span class="medgenPMjournal">BMJ Case Rep</span>
2024 Oct 15;17(10)
doi: 10.1136/bcr-2023-257260.
<span class="bold">PMID: </span><a href="/pubmed/39414323" target="_blank">39414323</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24453146">Clobazam-clonazepam combination effective for stimulus-induced falling in hyperekplexia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">McAbee GN</span><br />
<span class="medgenPMjournal">J Child Neurol</span>
2015 Jan;30(1):91-2.
Epub 2014 Jan 21
doi: 10.1177/0883073813516677.
<span class="bold">PMID: </span><a href="/pubmed/24453146" target="_blank">24453146</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24092290">Myoclonus.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Espay AJ,
Chen R</span><br />
<span class="medgenPMjournal">Continuum (Minneap Minn)</span>
2013 Oct;19(5 Movement Disorders):1264-86.
doi: 10.1212/01.CON.0000436156.54532.1a.
<span class="bold">PMID: </span><a href="/pubmed/24092290" target="_blank">24092290</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15504715">Late onset hyperekplexia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hamelin S,
Rohr P,
Kahane P,
Minotti L,
Vercueil L</span><br />
<span class="medgenPMjournal">Epileptic Disord</span>
2004 Sep;6(3):169-72.
<span class="bold">PMID: </span><a href="/pubmed/15504715" target="_blank">15504715</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12359314">Statistical coassembly of glycine receptor alpha1 wildtype and the hyperekplexia mutant alpha1(P250T) in HEK 293 cells: impaired channel function is not dominant in the recombinant system.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Breitinger HG,
Becker CM</span><br />
<span class="medgenPMjournal">Neurosci Lett</span>
2002 Oct 4;331(1):21-4.
doi: 10.1016/s0304-3940(02)00773-5.
<span class="bold">PMID: </span><a href="/pubmed/12359314" target="_blank">12359314</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (53)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35636282">Hereditary Hyperekplexia: A New Family and a Systematic Review of GLRA1 Gene-Related Phenotypes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ferraroli E,
Perulli M,
Veredice C,
Contaldo I,
Quintiliani M,
Ricci M,
Venezia I,
Citrigno L,
Qualtieri A,
Spadafora P,
Cavalcanti F,
Battaglia DI</span><br />
<span class="medgenPMjournal">Pediatr Neurol</span>
2022 Jul;132:45-49.
Epub 2022 May 17
doi: 10.1016/j.pediatrneurol.2022.05.002.
<span class="bold">PMID: </span><a href="/pubmed/35636282" target="_blank">35636282</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32445491">The startle disease mutation α1S270T predicts shortening of glycinergic synaptic currents.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wu Z,
Lape R,
Jopp-Saile L,
O'Callaghan BJ,
Greiner T,
Sivilotti LG</span><br />
<span class="medgenPMjournal">J Physiol</span>
2020 Aug;598(16):3417-3438.
Epub 2020 Jun 18
doi: 10.1113/JP279803.
<span class="bold">PMID: </span><a href="/pubmed/32445491" target="_blank">32445491</a><a href="/pmc/articles/PMC7649747" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24970905">Ethnicity can predict GLRA1 genotypes in hyperekplexia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Thomas RH,
Drew CJ,
Wood SE,
Hammond CL,
Chung SK,
Rees MI</span><br />
<span class="medgenPMjournal">J Neurol Neurosurg Psychiatry</span>
2015 Mar;86(3):341-3.
Epub 2014 Jun 26
doi: 10.1136/jnnp-2014-307903.
<span class="bold">PMID: </span><a href="/pubmed/24970905" target="_blank">24970905</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16820664">Neonatal hyperekplexia: the Stiff-Baby syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sharma SD,
Sarna A,
Mukhopadhyay S</span><br />
<span class="medgenPMjournal">Indian Pediatr</span>
2006 Jun;43(6):539-41.
<span class="bold">PMID: </span><a href="/pubmed/16820664" target="_blank">16820664</a></div>
<div class="nl"><a target="_blank" href="/pubmed/11395484">Opposing effects of molecular volume and charge at the hyperekplexia site alpha 1(P250) govern glycine receptor activation and desensitization.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Breitinger HG,
Villmann C,
Becker K,
Becker CM</span><br />
<span class="medgenPMjournal">J Biol Chem</span>
2001 Aug 10;276(32):29657-63.
Epub 2001 Jun 6
doi: 10.1074/jbc.M100446200.
<span class="bold">PMID: </span><a href="/pubmed/11395484" target="_blank">11395484</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (44)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/35636282">Hereditary Hyperekplexia: A New Family and a Systematic Review of GLRA1 Gene-Related Phenotypes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ferraroli E,
Perulli M,
Veredice C,
Contaldo I,
Quintiliani M,
Ricci M,
Venezia I,
Citrigno L,
Qualtieri A,
Spadafora P,
Cavalcanti F,
Battaglia DI</span><br />
<span class="medgenPMjournal">Pediatr Neurol</span>
2022 Jul;132:45-49.
Epub 2022 May 17
doi: 10.1016/j.pediatrneurol.2022.05.002.
<span class="bold">PMID: </span><a href="/pubmed/35636282" target="_blank">35636282</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34573299">Epilepsy and BRAF Mutations: Phenotypes, Natural History and Genotype-Phenotype Correlations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Battaglia DI,
Gambardella ML,
Veltri S,
Contaldo I,
Chillemi G,
Veredice C,
Quintiliani M,
Leoni C,
Onesimo R,
Verdolotti T,
Radio FC,
Martinelli D,
Trivisano M,
Specchio N,
Dravet C,
Tartaglia M,
Zampino G</span><br />
<span class="medgenPMjournal">Genes (Basel)</span>
2021 Aug 26;12(9)
doi: 10.3390/genes12091316.
<span class="bold">PMID: </span><a href="/pubmed/34573299" target="_blank">34573299</a><a href="/pmc/articles/PMC8470450" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34416409">Autoimmune GFAP astrocytopathy presenting with remarkable CNS hyperexcitability and oculogyric crises.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Equiza J,
Rodríguez-Antigüedad J,
Campo-Caballero D,
Iruzubieta P,
Prada Á,
Roncancio A,
Fernández E,
Ganzarain Oyarbide M,
Arruti M,
Urtasun MA,
Castillo-Triviño T</span><br />
<span class="medgenPMjournal">J Neuroimmunol</span>
2021 Oct 15;359:577695.
Epub 2021 Aug 14
doi: 10.1016/j.jneuroim.2021.577695.
<span class="bold">PMID: </span><a href="/pubmed/34416409" target="_blank">34416409</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24970905">Ethnicity can predict GLRA1 genotypes in hyperekplexia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Thomas RH,
Drew CJ,
Wood SE,
Hammond CL,
Chung SK,
Rees MI</span><br />
<span class="medgenPMjournal">J Neurol Neurosurg Psychiatry</span>
2015 Mar;86(3):341-3.
Epub 2014 Jun 26
doi: 10.1136/jnnp-2014-307903.
<span class="bold">PMID: </span><a href="/pubmed/24970905" target="_blank">24970905</a></div>
<div class="nl"><a target="_blank" href="/pubmed/11395484">Opposing effects of molecular volume and charge at the hyperekplexia site alpha 1(P250) govern glycine receptor activation and desensitization.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Breitinger HG,
Villmann C,
Becker K,
Becker CM</span><br />
<span class="medgenPMjournal">J Biol Chem</span>
2001 Aug 10;276(32):29657-63.
Epub 2001 Jun 6
doi: 10.1074/jbc.M100446200.
<span class="bold">PMID: </span><a href="/pubmed/11395484" target="_blank">11395484</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (64)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/39693598">Clinical and Paraclinical Characterizations, Management, and Prognosis in DPPX Antibody-Associated Encephalitis: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Li EC,
Zhang TY,
Cai MT,
Su SY,
Shen CH,
Lai QL,
Zhang YX</span><br />
<span class="medgenPMjournal">Neurol Neuroimmunol Neuroinflamm</span>
2025 Mar;12(2):e200350.
Epub 2024 Dec 18
doi: 10.1212/NXI.0000000000200350.
<span class="bold">PMID: </span><a href="/pubmed/39693598" target="_blank">39693598</a><a href="/pmc/articles/PMC11658814" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/39223854">Neonatal Hyperekplexia: Is It Still a Diagnostic Challenge? Evidence From a Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Falsaperla R,
Sortino V,
Giacchi V,
Saporito MAN,
Marino S,
Tardino LG,
Marino L,
Gennaro A,
Ruggieri M,
Barberi C,
Polizzi A</span><br />
<span class="medgenPMjournal">J Child Neurol</span>
2024 Oct;39(11-12):415-424.
Epub 2024 Sep 2
doi: 10.1177/08830738241273425.
<span class="bold">PMID: </span><a href="/pubmed/39223854" target="_blank">39223854</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35636282">Hereditary Hyperekplexia: A New Family and a Systematic Review of GLRA1 Gene-Related Phenotypes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ferraroli E,
Perulli M,
Veredice C,
Contaldo I,
Quintiliani M,
Ricci M,
Venezia I,
Citrigno L,
Qualtieri A,
Spadafora P,
Cavalcanti F,
Battaglia DI</span><br />
<span class="medgenPMjournal">Pediatr Neurol</span>
2022 Jul;132:45-49.
Epub 2022 May 17
doi: 10.1016/j.pediatrneurol.2022.05.002.
<span class="bold">PMID: </span><a href="/pubmed/35636282" target="_blank">35636282</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32170042">Clinical spectrum and diagnostic pitfalls of neurologic syndromes with Ri antibodies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Simard C,
Vogrig A,
Joubert B,
Muñiz-Castrillo S,
Picard G,
Rogemond V,
Ducray F,
Berzero G,
Psimaras D,
Antoine JC,
Desestret V,
Honnorat J</span><br />
<span class="medgenPMjournal">Neurol Neuroimmunol Neuroinflamm</span>
2020 May;7(3)
Epub 2020 Mar 13
doi: 10.1212/NXI.0000000000000699.
<span class="bold">PMID: </span><a href="/pubmed/32170042" target="_blank">32170042</a><a href="/pmc/articles/PMC7136048" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Hyperekplexia%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (4)</a></div></div>
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C0234166%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (2)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C0234166%5bDISCUI%5d" target="_blank">See all (2)</a></total></li>
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<div class="portlet_content ln"><ul><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=306773" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Hyperekplexia" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22hyperekplexia%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li><li><a target="_blank" href="/books/?term=((%22clinical%20guidelines%22%5BResource%20Type%5D)%20OR%20%22practice%20guideline%22%5BPublication%20Type%5D)%20AND%20(%22Hyperekplexia%22)">Bookshelf</a><div class="help-popup">See practice and clinical guidelines in NCBI Bookshelf. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul></div>
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