Origin of arterial wall dissections induced by pulsed excimer and mid-infrared laser ablation in the pig.
Identifieur interne : 000798 ( PubMed/Corpus ); précédent : 000797; suivant : 000799Origin of arterial wall dissections induced by pulsed excimer and mid-infrared laser ablation in the pig.
Auteurs : T G Van Leeuwen ; L. Van Erven ; J H Meertens ; M. Motamedi ; M J Post ; C. BorstSource :
- Journal of the American College of Cardiology [ 0735-1097 ] ; 1992.
English descriptors
- KwdEn :
- MESH :
- chemical : Sodium Chloride.
- adverse effects : Angioplasty, Laser, Lasers.
- injuries : Aorta, Thoracic.
- pathology : Aorta, Thoracic.
- Animals, Female, In Vitro Techniques, Necrosis, Swine.
Abstract
To study adjacent tissue damage after delivery of holmium, thulium and excimer laser pulses, porcine thoracic aortas were irradiated in vivo. After 3 days, microscopic analysis of 67 craters produced by all three lasers demonstrated large dissections extending from the craters. The mean diameter of the dissections was smaller for excimer-induced craters (1.38 +/- 0.42 mm; n = 22) than for holmium-induced (2.7 +/- 0.87 mm; n = 22) and thulium-induced (2.37 +/- 0.42 mm; n = 14) craters (p less than 0.01 vs. mid-infrared dissections). In addition, microscopic analysis demonstrated necrosis adjacent to the crater. The lateral necrotic zones of the thulium-induced craters were smaller than the holmium- and excimer-induced necrotic zones (p less than 0.01). To identify the origin of the excessive tissue tearing, laser-saline and laser-tissue interaction were compared in vitro by time-resolved flash photography. In saline solution, the mid-infrared lasers showed bubble formation on a microsecond time scale. The excimer laser produced similar bubbles in the vicinity of tissue. For all three lasers, elevation of the tissue surface was shown during in vitro ablation. Dimension (diameter up to 4 mm) and time course (rise time of 100 to 300 microseconds) of bubble formation and tissue elevation were strikingly similar. Thus, tissue dissections are caused by the expansion of a vapor bubble within the target tissue. Coronary dissections after excimer and mid-infrared laser angioplasty might be related to the forceful bubble expansion.
PubMed: 1593058
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pubmed:1593058Le document en format XML
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Motamedi</name></author><author><name sortKey="Post, M J" sort="Post, M J" uniqKey="Post M" first="M J" last="Post">M J Post</name></author><author><name sortKey="Borst, C" sort="Borst, C" uniqKey="Borst C" first="C" last="Borst">C. Borst</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1992">1992</date><idno type="RBID">pubmed:1593058</idno><idno type="pmid">1593058</idno><idno type="wicri:Area/PubMed/Corpus">000798</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000798</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Origin of arterial wall dissections induced by pulsed excimer and mid-infrared laser ablation in the pig.</title><author><name sortKey="Van Leeuwen, T G" sort="Van Leeuwen, T G" uniqKey="Van Leeuwen T" first="T G" last="Van Leeuwen">T G Van Leeuwen</name><affiliation><nlm:affiliation>Department of Cardiology, University Hospital Utrecht, The Netherlands.</nlm:affiliation></affiliation></author><author><name sortKey="Van Erven, L" sort="Van Erven, L" uniqKey="Van Erven L" first="L" last="Van Erven">L. Van Erven</name></author><author><name sortKey="Meertens, J H" sort="Meertens, J H" uniqKey="Meertens J" first="J H" last="Meertens">J H Meertens</name></author><author><name sortKey="Motamedi, M" sort="Motamedi, M" uniqKey="Motamedi M" first="M" last="Motamedi">M. Motamedi</name></author><author><name sortKey="Post, M J" sort="Post, M J" uniqKey="Post M" first="M J" last="Post">M J Post</name></author><author><name sortKey="Borst, C" sort="Borst, C" uniqKey="Borst C" first="C" last="Borst">C. Borst</name></author></analytic><series><title level="j">Journal of the American College of Cardiology</title><idno type="ISSN">0735-1097</idno><imprint><date when="1992" type="published">1992</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Angioplasty, Laser (adverse effects)</term><term>Animals</term><term>Aorta, Thoracic (injuries)</term><term>Aorta, Thoracic (pathology)</term><term>Female</term><term>In Vitro Techniques</term><term>Lasers (adverse effects)</term><term>Necrosis</term><term>Sodium Chloride</term><term>Swine</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Sodium Chloride</term></keywords><keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Angioplasty, Laser</term><term>Lasers</term></keywords><keywords scheme="MESH" qualifier="injuries" xml:lang="en"><term>Aorta, Thoracic</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Aorta, Thoracic</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Female</term><term>In Vitro Techniques</term><term>Necrosis</term><term>Swine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To study adjacent tissue damage after delivery of holmium, thulium and excimer laser pulses, porcine thoracic aortas were irradiated in vivo. After 3 days, microscopic analysis of 67 craters produced by all three lasers demonstrated large dissections extending from the craters. The mean diameter of the dissections was smaller for excimer-induced craters (1.38 +/- 0.42 mm; n = 22) than for holmium-induced (2.7 +/- 0.87 mm; n = 22) and thulium-induced (2.37 +/- 0.42 mm; n = 14) craters (p less than 0.01 vs. mid-infrared dissections). In addition, microscopic analysis demonstrated necrosis adjacent to the crater. The lateral necrotic zones of the thulium-induced craters were smaller than the holmium- and excimer-induced necrotic zones (p less than 0.01). To identify the origin of the excessive tissue tearing, laser-saline and laser-tissue interaction were compared in vitro by time-resolved flash photography. In saline solution, the mid-infrared lasers showed bubble formation on a microsecond time scale. The excimer laser produced similar bubbles in the vicinity of tissue. For all three lasers, elevation of the tissue surface was shown during in vitro ablation. Dimension (diameter up to 4 mm) and time course (rise time of 100 to 300 microseconds) of bubble formation and tissue elevation were strikingly similar. Thus, tissue dissections are caused by the expansion of a vapor bubble within the target tissue. Coronary dissections after excimer and mid-infrared laser angioplasty might be related to the forceful bubble expansion.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">1593058</PMID><DateCreated><Year>1992</Year><Month>06</Month><Day>26</Day></DateCreated><DateCompleted><Year>1992</Year><Month>06</Month><Day>26</Day></DateCompleted><DateRevised><Year>2015</Year><Month>11</Month><Day>19</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0735-1097</ISSN><JournalIssue CitedMedium="Print"><Volume>19</Volume><Issue>7</Issue><PubDate><Year>1992</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Journal of the American College of Cardiology</Title><ISOAbbreviation>J. Am. Coll. Cardiol.</ISOAbbreviation></Journal><ArticleTitle>Origin of arterial wall dissections induced by pulsed excimer and mid-infrared laser ablation in the pig.</ArticleTitle><Pagination><MedlinePgn>1610-8</MedlinePgn></Pagination><Abstract><AbstractText>To study adjacent tissue damage after delivery of holmium, thulium and excimer laser pulses, porcine thoracic aortas were irradiated in vivo. After 3 days, microscopic analysis of 67 craters produced by all three lasers demonstrated large dissections extending from the craters. The mean diameter of the dissections was smaller for excimer-induced craters (1.38 +/- 0.42 mm; n = 22) than for holmium-induced (2.7 +/- 0.87 mm; n = 22) and thulium-induced (2.37 +/- 0.42 mm; n = 14) craters (p less than 0.01 vs. mid-infrared dissections). In addition, microscopic analysis demonstrated necrosis adjacent to the crater. The lateral necrotic zones of the thulium-induced craters were smaller than the holmium- and excimer-induced necrotic zones (p less than 0.01). To identify the origin of the excessive tissue tearing, laser-saline and laser-tissue interaction were compared in vitro by time-resolved flash photography. In saline solution, the mid-infrared lasers showed bubble formation on a microsecond time scale. The excimer laser produced similar bubbles in the vicinity of tissue. For all three lasers, elevation of the tissue surface was shown during in vitro ablation. Dimension (diameter up to 4 mm) and time course (rise time of 100 to 300 microseconds) of bubble formation and tissue elevation were strikingly similar. Thus, tissue dissections are caused by the expansion of a vapor bubble within the target tissue. Coronary dissections after excimer and mid-infrared laser angioplasty might be related to the forceful bubble expansion.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>van Leeuwen</LastName><ForeName>T G</ForeName><Initials>TG</Initials><AffiliationInfo><Affiliation>Department of Cardiology, University Hospital Utrecht, The Netherlands.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>van Erven</LastName><ForeName>L</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Meertens</LastName><ForeName>J H</ForeName><Initials>JH</Initials></Author><Author ValidYN="Y"><LastName>Motamedi</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Post</LastName><ForeName>M J</ForeName><Initials>MJ</Initials></Author><Author ValidYN="Y"><LastName>Borst</LastName><ForeName>C</ForeName><Initials>C</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>J Am Coll Cardiol</MedlineTA><NlmUniqueID>8301365</NlmUniqueID><ISSNLinking>0735-1097</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>451W47IQ8X</RegistryNumber><NameOfSubstance UI="D012965">Sodium Chloride</NameOfSubstance></Chemical></ChemicalList><CitationSubset>AIM</CitationSubset><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="CommentIn"><RefSource>J Am Coll Cardiol. 1992 Jun;19(7):1619-21</RefSource><PMID Version="1">1593059</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D016342">Angioplasty, Laser</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000009">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000818">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001013">Aorta, Thoracic</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000293">injuries</QualifierName><QualifierName MajorTopicYN="N" UI="Q000473">pathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D066298">In Vitro Techniques</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D007834">Lasers</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000009">adverse effects</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D009336">Necrosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012965">Sodium Chloride</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013552">Swine</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1992</Year><Month>6</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1992</Year><Month>6</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1992</Year><Month>6</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">1593058</ArticleId><ArticleId IdType="pii">0735-1097(92)90627-Y</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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