Long-Term Internal Cardiac Defibrillation Threshold Stability
The automatic implantable cardioverter‐defibrillator is tested intraoperatively with defibrillation trials to ensure effectiveness. It is unknown if the energy requirement for internal defibrillation remains stable and that once demonstrated effective, if the device will continue to be effective in...
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| Veröffentlicht in: | Pacing and clinical electrophysiology 1989-03, Vol.12 (3), p.443-450 |
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| container_title | Pacing and clinical electrophysiology |
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| creator | WETHERBEE, JULE N. CHAPMAN, PETER D. TROUP, PAUL J. VESETH-ROGERS, JAN THAKUR, R.K. ALMASSI, G. HOSSEIN OLINGER, GORDON N. |
| description | The automatic implantable cardioverter‐defibrillator is tested intraoperatively with defibrillation trials to ensure effectiveness. It is unknown if the energy requirement for internal defibrillation remains stable and that once demonstrated effective, if the device will continue to be effective in terminating lethal ventricular arrhythmias. In this study, the defibrillation energy requirement was compared in 56 patients at the time of lead implantation to that obtained at the time of generator replacement. Mean time to generator replacement was 17. ± 6.6 months. The defibrillation threshold was stable over that time (11. 9 ± 6.7 joules compared to 12.7 ± 8.4 joules, NS). There was no relation between transmyocardial impedance and defibrillation threshold. In addition, no effect on defibrillation threshold was demonstrated by the use of various cardiac medications, concomitant surgery or the occurrence of clinical shocks during follow‐up. |
| doi_str_mv | 10.1111/j.1540-8159.1989.tb02682.x |
| format | Article |
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HOSSEIN</creatorcontrib><creatorcontrib>OLINGER, GORDON N.</creatorcontrib><title>Long-Term Internal Cardiac Defibrillation Threshold Stability</title><title>Pacing and clinical electrophysiology</title><addtitle>Pacing Clin Electrophysiol</addtitle><description>The automatic implantable cardioverter‐defibrillator is tested intraoperatively with defibrillation trials to ensure effectiveness. It is unknown if the energy requirement for internal defibrillation remains stable and that once demonstrated effective, if the device will continue to be effective in terminating lethal ventricular arrhythmias. In this study, the defibrillation energy requirement was compared in 56 patients at the time of lead implantation to that obtained at the time of generator replacement. Mean time to generator replacement was 17. ± 6.6 months. The defibrillation threshold was stable over that time (11. 9 ± 6.7 joules compared to 12.7 ± 8.4 joules, NS). There was no relation between transmyocardial impedance and defibrillation threshold. In addition, no effect on defibrillation threshold was demonstrated by the use of various cardiac medications, concomitant surgery or the occurrence of clinical shocks during follow‐up.</description><subject>automatic implantable cardioverter-defibrillator</subject><subject>Electric Countershock - instrumentation</subject><subject>Electric Power Supplies</subject><subject>Equipment Failure</subject><subject>Female</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>internal defibrillation</subject><subject>Intraoperative Care - methods</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Time Factors</subject><subject>Ventricular Fibrillation - prevention & control</subject><issn>0147-8389</issn><issn>1540-8159</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqVkN9PwjAQxxujQUT_BJPFB982r2vXdibGEEQkIf4C42PTbZ0Ux4btiPDfuwXCu_dyD9-7z10-CF1hCHBTN4sARxR8gaM4wLGIgzqBkIkw2Byh7iE6Rl3AlPuCiPgUnTm3AAAGNOqgTkgZCzl00d2kKr_8mbZLb1zW2paq8AbKZkal3oPOTWJNUajaVKU3m1vt5lWRedNaJaYw9fYcneSqcPpi33vo43E4Gzz5k5fReNCf-CkFQXymSMqYiqIQMMloDjSnHCdZwuM4D6mICAaqBEsIwyAU1TrDGVUszQVQrHPSQ9c77spWP2vtark0LtXNZ6Wu1k5yITiIGJrB291gaivnrM7lypqlsluJQbbu5EK2gmQrSLbu5N6d3DTLl_sr62Sps8PqXlaT3-_yX1Po7T_I8rU_GFJKGoK_IxhX682BoOy3ZJzwSH4-jyS8vfNwSqickj9Y84z5</recordid><startdate>198903</startdate><enddate>198903</enddate><creator>WETHERBEE, JULE N.</creator><creator>CHAPMAN, PETER D.</creator><creator>TROUP, PAUL J.</creator><creator>VESETH-ROGERS, JAN</creator><creator>THAKUR, R.K.</creator><creator>ALMASSI, G. HOSSEIN</creator><creator>OLINGER, GORDON N.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>198903</creationdate><title>Long-Term Internal Cardiac Defibrillation Threshold Stability</title><author>WETHERBEE, JULE N. ; CHAPMAN, PETER D. ; TROUP, PAUL J. ; VESETH-ROGERS, JAN ; THAKUR, R.K. ; ALMASSI, G. HOSSEIN ; OLINGER, GORDON N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4083-6a3c66a552013d4f04f471bdb799f24853104a86b36108a4eed1d4a6cf8041ef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>automatic implantable cardioverter-defibrillator</topic><topic>Electric Countershock - instrumentation</topic><topic>Electric Power Supplies</topic><topic>Equipment Failure</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>internal defibrillation</topic><topic>Intraoperative Care - methods</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Time Factors</topic><topic>Ventricular Fibrillation - prevention & control</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WETHERBEE, JULE N.</creatorcontrib><creatorcontrib>CHAPMAN, PETER D.</creatorcontrib><creatorcontrib>TROUP, PAUL J.</creatorcontrib><creatorcontrib>VESETH-ROGERS, JAN</creatorcontrib><creatorcontrib>THAKUR, R.K.</creatorcontrib><creatorcontrib>ALMASSI, G. HOSSEIN</creatorcontrib><creatorcontrib>OLINGER, GORDON N.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Pacing and clinical electrophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WETHERBEE, JULE N.</au><au>CHAPMAN, PETER D.</au><au>TROUP, PAUL J.</au><au>VESETH-ROGERS, JAN</au><au>THAKUR, R.K.</au><au>ALMASSI, G. HOSSEIN</au><au>OLINGER, GORDON N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long-Term Internal Cardiac Defibrillation Threshold Stability</atitle><jtitle>Pacing and clinical electrophysiology</jtitle><addtitle>Pacing Clin Electrophysiol</addtitle><date>1989-03</date><risdate>1989</risdate><volume>12</volume><issue>3</issue><spage>443</spage><epage>450</epage><pages>443-450</pages><issn>0147-8389</issn><eissn>1540-8159</eissn><abstract>The automatic implantable cardioverter‐defibrillator is tested intraoperatively with defibrillation trials to ensure effectiveness. It is unknown if the energy requirement for internal defibrillation remains stable and that once demonstrated effective, if the device will continue to be effective in terminating lethal ventricular arrhythmias. In this study, the defibrillation energy requirement was compared in 56 patients at the time of lead implantation to that obtained at the time of generator replacement. Mean time to generator replacement was 17. ± 6.6 months. The defibrillation threshold was stable over that time (11. 9 ± 6.7 joules compared to 12.7 ± 8.4 joules, NS). There was no relation between transmyocardial impedance and defibrillation threshold. In addition, no effect on defibrillation threshold was demonstrated by the use of various cardiac medications, concomitant surgery or the occurrence of clinical shocks during follow‐up.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>2466270</pmid><doi>10.1111/j.1540-8159.1989.tb02682.x</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0147-8389 |
| ispartof | Pacing and clinical electrophysiology, 1989-03, Vol.12 (3), p.443-450 |
| issn | 0147-8389 1540-8159 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_78870890 |
| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | automatic implantable cardioverter-defibrillator Electric Countershock - instrumentation Electric Power Supplies Equipment Failure Female Follow-Up Studies Humans internal defibrillation Intraoperative Care - methods Male Middle Aged Time Factors Ventricular Fibrillation - prevention & control |
| title | Long-Term Internal Cardiac Defibrillation Threshold Stability |
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