Clinical Evaluation of a Dual Sensor, Rate Responsive Pacemaker
Dual sensor pacemakers should respond more appropriately during differing exercise modes than a single sensor device. The Topaz™ models 515 (QT and activity count [ACT] sensing) pacemaker shows appropriate rate response during treadmill exercise testing. We postulated that adjustments to relative se...
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| Veröffentlicht in: | Pacing and clinical electrophysiology 1994-11, Vol.17 (11), p.1950-1954 |
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| container_issue | 11 |
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| container_title | Pacing and clinical electrophysiology |
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| creator | SINHA, SANJAY SCHILLING, RICHARD J. KAYE, GERRY C. CAPLIN, JOHN L. |
| description | Dual sensor pacemakers should respond more appropriately during differing exercise modes than a single sensor device. The Topaz™ models 515 (QT and activity count [ACT] sensing) pacemaker shows appropriate rate response during treadmill exercise testing. We postulated that adjustments to relative sensor contribution should allow fine tuning of the onset of rate response. Eleven patients with this pacemaker were studied. Three standard exercise tests were performed with adjustment of sensor blending and activity threshold between each one. We also assessed the response to isometric exercise and a false positive activity signal. Results: Times to 100 ppm (3.7 ± 1.3, 4.4 ± 2.0, 5.3 ±1.5 mins), times to peak rate (6.1 ± 1.6, 5.6 ± 1.4, 6.5 ± 1.3 mins) and accelerations to peak (9.0 ± 2.4, 9.2 ± 5.3, 7.7 ± 2.8 ppm/min) were measured in all three different sensor settings (QT = ACT, QT |
| doi_str_mv | 10.1111/j.1540-8159.1994.tb03779.x |
| format | Article |
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The Topaz™ models 515 (QT and activity count [ACT] sensing) pacemaker shows appropriate rate response during treadmill exercise testing. We postulated that adjustments to relative sensor contribution should allow fine tuning of the onset of rate response. Eleven patients with this pacemaker were studied. Three standard exercise tests were performed with adjustment of sensor blending and activity threshold between each one. We also assessed the response to isometric exercise and a false positive activity signal. Results: Times to 100 ppm (3.7 ± 1.3, 4.4 ± 2.0, 5.3 ±1.5 mins), times to peak rate (6.1 ± 1.6, 5.6 ± 1.4, 6.5 ± 1.3 mins) and accelerations to peak (9.0 ± 2.4, 9.2 ± 5.3, 7.7 ± 2.8 ppm/min) were measured in all three different sensor settings (QT = ACT, QT <ACT, and QT = ACT with decreased activity threshold). No significant difference in onset of rate response was seen between the three settings. Tapping (false‐positive activity) provided a rapid rise in paced rate to 79 ppm from a resting value of 65 ppm. This came down to 71 ppm demonstrating satisfactory sensor cross‐checking. Isometric exercise induced a moderate response from 65 ppm at rest to 74 ppm after 3 minutes. Conclusions: Satisfactory rate response was demonstrated in most patients to treadmill testing and to isometric exercise. However, small adjustments to relative sensor contributions do not predictably alter the onset of rate response.</description><identifier>ISSN: 0147-8389</identifier><identifier>EISSN: 1540-8159</identifier><identifier>DOI: 10.1111/j.1540-8159.1994.tb03779.x</identifier><identifier>PMID: 7845797</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Aged ; Aged, 80 and over ; Cardiac Pacing, Artificial ; dual sensor ; Exercise ; Exercise Test ; Female ; Heart Rate ; Humans ; isometric exercise ; Male ; Middle Aged ; pacemaker ; Pacemaker, Artificial ; rate response</subject><ispartof>Pacing and clinical electrophysiology, 1994-11, Vol.17 (11), p.1950-1954</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4090-ae66e494eb6240688b78d0ce61cba4eb093ded97a5bcc30a179a8aa92ce92323</citedby><cites>FETCH-LOGICAL-c4090-ae66e494eb6240688b78d0ce61cba4eb093ded97a5bcc30a179a8aa92ce92323</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1540-8159.1994.tb03779.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1540-8159.1994.tb03779.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/7845797$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>SINHA, SANJAY</creatorcontrib><creatorcontrib>SCHILLING, RICHARD J.</creatorcontrib><creatorcontrib>KAYE, GERRY C.</creatorcontrib><creatorcontrib>CAPLIN, JOHN L.</creatorcontrib><title>Clinical Evaluation of a Dual Sensor, Rate Responsive Pacemaker</title><title>Pacing and clinical electrophysiology</title><addtitle>Pacing Clin Electrophysiol</addtitle><description>Dual sensor pacemakers should respond more appropriately during differing exercise modes than a single sensor device. The Topaz™ models 515 (QT and activity count [ACT] sensing) pacemaker shows appropriate rate response during treadmill exercise testing. We postulated that adjustments to relative sensor contribution should allow fine tuning of the onset of rate response. Eleven patients with this pacemaker were studied. Three standard exercise tests were performed with adjustment of sensor blending and activity threshold between each one. We also assessed the response to isometric exercise and a false positive activity signal. Results: Times to 100 ppm (3.7 ± 1.3, 4.4 ± 2.0, 5.3 ±1.5 mins), times to peak rate (6.1 ± 1.6, 5.6 ± 1.4, 6.5 ± 1.3 mins) and accelerations to peak (9.0 ± 2.4, 9.2 ± 5.3, 7.7 ± 2.8 ppm/min) were measured in all three different sensor settings (QT = ACT, QT <ACT, and QT = ACT with decreased activity threshold). No significant difference in onset of rate response was seen between the three settings. Tapping (false‐positive activity) provided a rapid rise in paced rate to 79 ppm from a resting value of 65 ppm. This came down to 71 ppm demonstrating satisfactory sensor cross‐checking. Isometric exercise induced a moderate response from 65 ppm at rest to 74 ppm after 3 minutes. Conclusions: Satisfactory rate response was demonstrated in most patients to treadmill testing and to isometric exercise. However, small adjustments to relative sensor contributions do not predictably alter the onset of rate response.</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Cardiac Pacing, Artificial</subject><subject>dual sensor</subject><subject>Exercise</subject><subject>Exercise Test</subject><subject>Female</subject><subject>Heart Rate</subject><subject>Humans</subject><subject>isometric exercise</subject><subject>Male</subject><subject>Middle Aged</subject><subject>pacemaker</subject><subject>Pacemaker, Artificial</subject><subject>rate response</subject><issn>0147-8389</issn><issn>1540-8159</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqVkEFLw0AQhRdRtFZ_ghA8eDJxttlkd72o1FqFqkVFxcsy2U4hNU1qNtH6701o6d25DMx782b4GDvmEPCmzmYBjwT4ikc64FqLoEoglFIHyy3W2UjbrANcSF-FSu-xfedmABCDiHbZrlQiklp22EU_S_PUYuYNvjGrsUqL3CumHnrXdTN8ptwV5an3hBV5T-QWRe7Sb_LGaGmOn1QesJ0pZo4O173LXm4GL_1bf_Q4vOtfjXwrQIOPFMcktKAk7gmIlUqkmoClmNsEmynocEITLTFKrA0BudSoEHXPku6FvbDLTlaxi7L4qslVZp46S1mGORW1M1JK4EpDYzxfGW1ZOFfS1CzKdI7lr-FgWnhmZlpCpiVkWnhmDc8sm-Wj9ZU6mdNks7qm1eiXK_0nzej3H8lmfNUfcB21__mriNRVtNxEYPlpYhnKyLw9DM3o9eN-_PD-buLwD_tcjp8</recordid><startdate>199411</startdate><enddate>199411</enddate><creator>SINHA, SANJAY</creator><creator>SCHILLING, RICHARD J.</creator><creator>KAYE, GERRY C.</creator><creator>CAPLIN, JOHN L.</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>199411</creationdate><title>Clinical Evaluation of a Dual Sensor, Rate Responsive Pacemaker</title><author>SINHA, SANJAY ; SCHILLING, RICHARD J. ; KAYE, GERRY C. ; CAPLIN, JOHN L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4090-ae66e494eb6240688b78d0ce61cba4eb093ded97a5bcc30a179a8aa92ce92323</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Cardiac Pacing, Artificial</topic><topic>dual sensor</topic><topic>Exercise</topic><topic>Exercise Test</topic><topic>Female</topic><topic>Heart Rate</topic><topic>Humans</topic><topic>isometric exercise</topic><topic>Male</topic><topic>Middle Aged</topic><topic>pacemaker</topic><topic>Pacemaker, Artificial</topic><topic>rate response</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SINHA, SANJAY</creatorcontrib><creatorcontrib>SCHILLING, RICHARD J.</creatorcontrib><creatorcontrib>KAYE, GERRY C.</creatorcontrib><creatorcontrib>CAPLIN, JOHN L.</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>SINHA, SANJAY</au><au>SCHILLING, RICHARD J.</au><au>KAYE, GERRY C.</au><au>CAPLIN, JOHN L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Clinical Evaluation of a Dual Sensor, Rate Responsive Pacemaker</atitle><jtitle>Pacing and clinical electrophysiology</jtitle><addtitle>Pacing Clin Electrophysiol</addtitle><date>1994-11</date><risdate>1994</risdate><volume>17</volume><issue>11</issue><spage>1950</spage><epage>1954</epage><pages>1950-1954</pages><issn>0147-8389</issn><eissn>1540-8159</eissn><abstract>Dual sensor pacemakers should respond more appropriately during differing exercise modes than a single sensor device. The Topaz™ models 515 (QT and activity count [ACT] sensing) pacemaker shows appropriate rate response during treadmill exercise testing. We postulated that adjustments to relative sensor contribution should allow fine tuning of the onset of rate response. Eleven patients with this pacemaker were studied. Three standard exercise tests were performed with adjustment of sensor blending and activity threshold between each one. We also assessed the response to isometric exercise and a false positive activity signal. Results: Times to 100 ppm (3.7 ± 1.3, 4.4 ± 2.0, 5.3 ±1.5 mins), times to peak rate (6.1 ± 1.6, 5.6 ± 1.4, 6.5 ± 1.3 mins) and accelerations to peak (9.0 ± 2.4, 9.2 ± 5.3, 7.7 ± 2.8 ppm/min) were measured in all three different sensor settings (QT = ACT, QT <ACT, and QT = ACT with decreased activity threshold). No significant difference in onset of rate response was seen between the three settings. Tapping (false‐positive activity) provided a rapid rise in paced rate to 79 ppm from a resting value of 65 ppm. This came down to 71 ppm demonstrating satisfactory sensor cross‐checking. Isometric exercise induced a moderate response from 65 ppm at rest to 74 ppm after 3 minutes. Conclusions: Satisfactory rate response was demonstrated in most patients to treadmill testing and to isometric exercise. However, small adjustments to relative sensor contributions do not predictably alter the onset of rate response.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>7845797</pmid><doi>10.1111/j.1540-8159.1994.tb03779.x</doi><tpages>5</tpages></addata></record> |
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| source | MEDLINE; Wiley Online Library All Journals |
| subjects | Aged Aged, 80 and over Cardiac Pacing, Artificial dual sensor Exercise Exercise Test Female Heart Rate Humans isometric exercise Male Middle Aged pacemaker Pacemaker, Artificial rate response |
| title | Clinical Evaluation of a Dual Sensor, Rate Responsive Pacemaker |
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