Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation
Identifieur interne : 000046 ( Main/Corpus ); précédent : 000045; suivant : 000047Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation
Auteurs : Maurice Lev ; Samuel M. Fox Iii ; Saroja Bharati ; Joseph C. Greenfield Jr. ; Kenneth M. Rosen ; Alfred PickSource :
- The American Journal of Cardiology [ 0002-9149 ] ; 1975.
Abstract
This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V1 and V4 to V6. Delta waves were negative in leads II, III, aVF and V1, isoelectric in leads V4 to V6 and positive only in leads I, aVL, V2 and V3. This case thus defies classification into any known variety of preexcitation.Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.
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DOI: 10.1016/0002-9149(75)90077-6
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title><author><name sortKey="Lev, Maurice" sort="Lev, Maurice" uniqKey="Lev M" first="Maurice" last="Lev">Maurice Lev</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Fox Iii, Samuel M" sort="Fox Iii, Samuel M" uniqKey="Fox Iii S" first="Samuel M." last="Fox Iii">Samuel M. Fox Iii</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Bharati, Saroja" sort="Bharati, Saroja" uniqKey="Bharati S" first="Saroja" last="Bharati">Saroja Bharati</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Greenfield Jr, Joseph C" sort="Greenfield Jr, Joseph C" uniqKey="Greenfield Jr J" first="Joseph C." last="Greenfield Jr.">Joseph C. Greenfield Jr.</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Rosen, Kenneth M" sort="Rosen, Kenneth M" uniqKey="Rosen K" first="Kenneth M." last="Rosen">Kenneth M. Rosen</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Pick, Alfred" sort="Pick, Alfred" uniqKey="Pick A" first="Alfred" last="Pick">Alfred Pick</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:7634919AFDA94724A75C2D4D95E0530F61AF13E4</idno><date when="1975" year="1975">1975</date><idno type="doi">10.1016/0002-9149(75)90077-6</idno><idno type="url">https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/fulltext/pdf</idno><idno type="wicri:Area/Main/Corpus">000046</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title><author><name sortKey="Lev, Maurice" sort="Lev, Maurice" uniqKey="Lev M" first="Maurice" last="Lev">Maurice Lev</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Fox Iii, Samuel M" sort="Fox Iii, Samuel M" uniqKey="Fox Iii S" first="Samuel M." last="Fox Iii">Samuel M. Fox Iii</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Bharati, Saroja" sort="Bharati, Saroja" uniqKey="Bharati S" first="Saroja" last="Bharati">Saroja Bharati</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Greenfield Jr, Joseph C" sort="Greenfield Jr, Joseph C" uniqKey="Greenfield Jr J" first="Joseph C." last="Greenfield Jr.">Joseph C. Greenfield Jr.</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Rosen, Kenneth M" sort="Rosen, Kenneth M" uniqKey="Rosen K" first="Kenneth M." last="Rosen">Kenneth M. Rosen</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author><author><name sortKey="Pick, Alfred" sort="Pick, Alfred" uniqKey="Pick A" first="Alfred" last="Pick">Alfred Pick</name><affiliation><mods:affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">The American Journal of Cardiology</title><title level="j" type="abbrev">AJC</title><idno type="ISSN">0002-9149</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1975">1975</date><biblScope unit="volume">36</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="880">880</biblScope><biblScope unit="page" to="888">888</biblScope></imprint><idno type="ISSN">0002-9149</idno></series><idno type="istex">7634919AFDA94724A75C2D4D95E0530F61AF13E4</idno><idno type="DOI">10.1016/0002-9149(75)90077-6</idno><idno type="PII">0002-9149(75)90077-6</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0002-9149</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V1 and V4 to V6. Delta waves were negative in leads II, III, aVF and V1, isoelectric in leads V4 to V6 and positive only in leads I, aVL, V2 and V3. This case thus defies classification into any known variety of preexcitation.Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Maurice Lev MD, FACC</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item><json:item><name>Samuel M. Fox, III MD, FACC</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item><json:item><name>Saroja Bharati MD</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item><json:item><name>Joseph C. Greenfield, Jr. MD, FACC</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item><json:item><name>Kenneth M. Rosen MD, FACC</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item><json:item><name>Alfred Pick MD, FACC</name><affiliations><json:string>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><abstract>This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V1 and V4 to V6. Delta waves were negative in leads II, III, aVF and V1, isoelectric in leads V4 to V6 and positive only in leads I, aVL, V2 and V3. This case thus defies classification into any known variety of preexcitation.Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.</abstract><qualityIndicators><score>7.081</score><pdfVersion>1.4</pdfVersion><pdfPageSize>612 x 828 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>1170</abstractCharCount><pdfWordCount>4253</pdfWordCount><pdfCharCount>26434</pdfCharCount><pdfPageCount>9</pdfPageCount><abstractWordCount>194</abstractWordCount></qualityIndicators><title>Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title><pii><json:string>0002-9149(75)90077-6</json:string></pii><genre><json:string>research-article</json:string></genre><serie><pages><last>242</last><first>239</first></pages><genre></genre><language><json:string>unknown</json:string></language><title>The prognosis of Wolff-Parkinson-White syndrome</title></serie><host><volume>36</volume><pii><json:string>S0002-9149(00)X0395-5</json:string></pii><pages><last>888</last><first>880</first></pages><issn><json:string>0002-9149</json:string></issn><issue>7</issue><genre><json:string>Journal</json:string></genre><language><json:string>unknown</json:string></language><title>The American Journal of Cardiology</title><publicationDate>1975</publicationDate></host><categories><wos><json:string>CARDIAC & CARDIOVASCULAR SYSTEMS</json:string></wos></categories><publicationDate>1975</publicationDate><copyrightDate>1975</copyrightDate><doi><json:string>10.1016/0002-9149(75)90077-6</json:string></doi><id>7634919AFDA94724A75C2D4D95E0530F61AF13E4</id><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/fulltext/pdf</uri></json:item><json:item><original>true</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/fulltext/txt</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>ELSEVIER</p></availability><date>1975</date></publicationStmt><notesStmt><note>This investigation was supported by Grant HL 07605-13 from the National Heart and Lung Institute, National Institutes of Health, Bethesda, Md.</note><note type="content">Section title: Clinical study</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title><author><persName><forename type="first">Maurice</forename><surname>Lev</surname></persName><roleName type="degree">MD, FACC</roleName><note type="biography">Address for reprints: Maurice Lev, MD, 637 S. Wood St., Chicago, Ill. 60612.</note><note type="biography">Career Investigator and Educator, Chicago Heart Association, Chicago, Ill.</note><affiliation>Address for reprints: Maurice Lev, MD, 637 S. Wood St., Chicago, Ill. 60612.</affiliation><affiliation>Career Investigator and Educator, Chicago Heart Association, Chicago, Ill.</affiliation><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author><author><persName><forename type="first">Samuel M.</forename><surname>Fox, III</surname></persName><roleName type="degree">MD, FACC</roleName><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author><author><persName><forename type="first">Saroja</forename><surname>Bharati</surname></persName><roleName type="degree">MD</roleName><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author><author><persName><forename type="first">Joseph C.</forename><surname>Greenfield, Jr.</surname></persName><roleName type="degree">MD, FACC</roleName><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author><author><persName><forename type="first">Kenneth M.</forename><surname>Rosen</surname></persName><roleName type="degree">MD, FACC</roleName><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author><author><persName><forename type="first">Alfred</forename><surname>Pick</surname></persName><roleName type="degree">MD, FACC</roleName><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation></author></analytic><monogr><title level="j">The American Journal of Cardiology</title><title level="j" type="abbrev">AJC</title><idno type="pISSN">0002-9149</idno><idno type="PII">S0002-9149(00)X0395-5</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1975"></date><biblScope unit="volume">36</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="880">880</biblScope><biblScope unit="page" to="888">888</biblScope></imprint></monogr><idno type="istex">7634919AFDA94724A75C2D4D95E0530F61AF13E4</idno><idno type="DOI">10.1016/0002-9149(75)90077-6</idno><idno type="PII">0002-9149(75)90077-6</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1975</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V1 and V4 to V6. Delta waves were negative in leads II, III, aVF and V1, isoelectric in leads V4 to V6 and positive only in leads I, aVL, V2 and V3. This case thus defies classification into any known variety of preexcitation.Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.</p></abstract></profileDesc><revisionDesc><change when="1975-04-30">Registration</change><change when="1975">Published</change></revisionDesc></teiHeader></istex:fulltextTEI></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" </istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>AJC</jid><aid>90077</aid><ce:pii>0002-9149(75)90077-6</ce:pii><ce:doi>10.1016/0002-9149(75)90077-6</ce:doi><ce:copyright type="unknown" year="1975"></ce:copyright></item-info><head><ce:article-footnote><ce:label>☆</ce:label><ce:note-para>This investigation was supported by Grant HL 07605-13 from the National Heart and Lung Institute, National Institutes of Health, Bethesda, Md.</ce:note-para></ce:article-footnote><ce:dochead><ce:textfn>Clinical study</ce:textfn></ce:dochead><ce:title>Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</ce:title><ce:author-group><ce:author><ce:given-name>Maurice</ce:given-name><ce:surname>Lev</ce:surname><ce:degrees>MD, FACC</ce:degrees><ce:cross-ref refid="COR1"><ce:sup>∗</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref><ce:cross-ref refid="FN1"><ce:sup>∗</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Samuel M.</ce:given-name><ce:surname>Fox</ce:surname><ce:suffix>III</ce:suffix><ce:degrees>MD, FACC</ce:degrees><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Saroja</ce:given-name><ce:surname>Bharati</ce:surname><ce:degrees>MD</ce:degrees><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Joseph C.</ce:given-name><ce:surname>Greenfield</ce:surname><ce:suffix>Jr.</ce:suffix><ce:degrees>MD, FACC</ce:degrees><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Kenneth M.</ce:given-name><ce:surname>Rosen</ce:surname><ce:degrees>MD, FACC</ce:degrees><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Alfred</ce:given-name><ce:surname>Pick</ce:surname><ce:degrees>MD, FACC</ce:degrees><ce:cross-ref refid="AFF1"><ce:sup>1</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>2</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF3"><ce:sup>3</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF4"><ce:sup>4</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF5"><ce:sup>5</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF6"><ce:sup>6</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF7"><ce:sup>7</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF8"><ce:sup>8</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>From the Departments of Pathology, Northwestern University Medical School, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF3"><ce:label>c</ce:label><ce:textfn>Pritzker School of Medicine, University of Chicago, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF4"><ce:label>d</ce:label><ce:textfn>From the the Chicago Medical School, University of Health Sciences, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF5"><ce:label>e</ce:label><ce:textfn>Loyola University Stritch School of Medicine, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF6"><ce:label>f</ce:label><ce:textfn>From the Departments of Pathology and Medicine, Abraham Lincoln School of Medicine, University of Illinois, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF7"><ce:label>g</ce:label><ce:textfn>From the Department of Pediatrics, Rush Medical College, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:affiliation id="AFF8"><ce:label>h</ce:label><ce:textfn>Cardiovascular Institute, Department of Medicine, Michael Reese Medical Center, Chicago, Ill., USA</ce:textfn></ce:affiliation><ce:correspondence id="COR1"><ce:label>∗</ce:label><ce:text>Address for reprints: Maurice Lev, MD, 637 S. Wood St., Chicago, Ill. 60612.</ce:text></ce:correspondence><ce:footnote id="FN1"><ce:label>∗</ce:label><ce:note-para>Career Investigator and Educator, Chicago Heart Association, Chicago, Ill.</ce:note-para></ce:footnote></ce:author-group><ce:date-accepted day="30" month="4" year="1975"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para id="SP0005">This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V<ce:inf>1</ce:inf> and V<ce:inf>4</ce:inf> to V<ce:inf>6</ce:inf>. Delta waves were negative in leads II, III, aVF and V<ce:inf>1</ce:inf>, isoelectric in leads V<ce:inf>4</ce:inf> to V<ce:inf>6</ce:inf> and positive only in leads I, aVL, V<ce:inf>2</ce:inf> and V<ce:inf>3</ce:inf>. This case thus defies classification into any known variety of preexcitation.</ce:simple-para><ce:simple-para id="SP0010">Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article> </istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Mahaim and James fibers as a basis for a unique variety of ventricular preexcitation</title></titleInfo><name type="personal"><namePart type="given">Maurice</namePart><namePart type="family">Lev</namePart><namePart type="termsOfAddress">MD, FACC</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><description>Address for reprints: Maurice Lev, MD, 637 S. Wood St., Chicago, Ill. 60612.</description><description>Career Investigator and Educator, Chicago Heart Association, Chicago, Ill.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Samuel M.</namePart><namePart type="family">Fox, III</namePart><namePart type="termsOfAddress">MD, FACC</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Saroja</namePart><namePart type="family">Bharati</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Joseph C.</namePart><namePart type="family">Greenfield, Jr.</namePart><namePart type="termsOfAddress">MD, FACC</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Kenneth M.</namePart><namePart type="family">Rosen</namePart><namePart type="termsOfAddress">MD, FACC</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Alfred</namePart><namePart type="family">Pick</namePart><namePart type="termsOfAddress">MD, FACC</namePart><affiliation>From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research, Chicago, Ill., USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1975</dateIssued><dateValid encoding="w3cdtf">1975-04-30</dateValid><copyrightDate encoding="w3cdtf">1975</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">This report concerns pathologic findings in a 54 year old woman with intermittent preexcitation who died of carcinoma of the breast. Electrocardiograms revealed predominantly normal sinus rhythm with a normal P-R interval and narrow QRS complex. Episodes of sinus rhythm, short P-R interval and QRS widening (with delta wave) were also recorded. During preexcitation QS complexes were noted in leads II, III, aVF, V1 and V4 to V6. Delta waves were negative in leads II, III, aVF and V1, isoelectric in leads V4 to V6 and positive only in leads I, aVL, V2 and V3. This case thus defies classification into any known variety of preexcitation.Complete serial sections, cut through the entire conduction system and both atrioventricular (A-V) rims, totaled 18,600 sections. These revealed no bundle of Kent. Instead, Mahaim fibers histologically identified as His bundle tissue gave off from the A-V bundle to both the right and the left sides of the septum associated with the normal fibers of James. This case reveals that (1) fibers of James can bypass the A-V node, (2) fibers of Mahaim can conduct, and (3) there are types of preexcitation in addition to types A and B.</abstract><note>This investigation was supported by Grant HL 07605-13 from the National Heart and Lung Institute, National Institutes of Health, Bethesda, Md.</note><note type="content">Section title: Clinical study</note><relatedItem type="host"><titleInfo><title>The American Journal of Cardiology</title></titleInfo><titleInfo type="abbreviated"><title>AJC</title></titleInfo><genre type="Journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">197512</dateIssued></originInfo><identifier type="ISSN">0002-9149</identifier><identifier type="PII">S0002-9149(00)X0395-5</identifier><part><date>197512</date><detail type="volume"><number>36</number><caption>vol.</caption></detail><detail type="issue"><number>7</number><caption>no.</caption></detail><extent unit="issue pages"><start>A41</start><end>A57</end></extent><extent unit="issue pages"><start>A5</start><end>A33</end></extent><extent unit="issue pages"><start>A61</start><end>A76</end></extent><extent unit="issue pages"><start>859</start><end>1000</end></extent><extent unit="pages"><start>880</start><end>888</end></extent></part></relatedItem><identifier type="istex">7634919AFDA94724A75C2D4D95E0530F61AF13E4</identifier><identifier type="DOI">10.1016/0002-9149(75)90077-6</identifier><identifier type="PII">0002-9149(75)90077-6</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/7634919AFDA94724A75C2D4D95E0530F61AF13E4/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">CARDIAC & CARDIOVASCULAR SYSTEMS</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI></enrichments></istex></record>Pour manipuler ce document sous Unix (Dilib)
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