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Article: Impedance cardiography for atrioventricular interval optimization during permanent left ventricular pacing

TitleImpedance cardiography for atrioventricular interval optimization during permanent left ventricular pacing
Authors
Issue Date2003
PublisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0147-8389&site=1
Citation
Pace - Pacing And Clinical Electrophysiology, 2003, v. 26 n. 1 II, p. 189-191 How to Cite?
AbstractLeft ventricular (LV) pacing is increasingly used in the management of congestive heart failure. Optimization of the atrioventricular (AV) interval is essential to maximize the hemodynamic benefits of this therapy. Although Doppler echocardiography (echo) is the most widely used method, it is time-consuming, expensive, and operator-dependent. We examined the value of an impedance cardiography (IC)-based method of cardiac output (CO) measurement to optimize the AV interval in 5 men and 1 woman (mean age = 72 ± 11 years) during permanent LV pacing with a 4.8 Fr unipolar coronary sinus pacing lead. Simultaneous measurements of CO by IC and echo were performed at AV intervals of 50, 80, 110, 150, 180, and 225 ms during DDD pacing at 85 beats/min. The optimal AV interval varied between 110 and 180 ms. In 5 of 6 patients (83%), the optimal AV interval by echo and IC was identical. While CO measurements were higher with IC than with echo (6.1 ± 0.4L/min vs 4.7 ± 0.3 L/min, P < 0.05), CO measurements by IC and echo were closely correlated r = 0.67, P < 0.001). In conclusion, our initial experience suggests that IC is a reliable method of AV interval optimization during LV pacing. IC and echo measurements of CO during LV pacing were closely correlated.
Persistent Identifierhttp://hdl.handle.net/10722/77830
ISSN
2015 Impact Factor: 1.156
2015 SCImago Journal Rankings: 0.662
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTse, HFen_HK
dc.contributor.authorYu, Cen_HK
dc.contributor.authorPark, Een_HK
dc.contributor.authorLau, CPen_HK
dc.date.accessioned2010-09-06T07:36:13Z-
dc.date.available2010-09-06T07:36:13Z-
dc.date.issued2003en_HK
dc.identifier.citationPace - Pacing And Clinical Electrophysiology, 2003, v. 26 n. 1 II, p. 189-191en_HK
dc.identifier.issn0147-8389en_HK
dc.identifier.urihttp://hdl.handle.net/10722/77830-
dc.description.abstractLeft ventricular (LV) pacing is increasingly used in the management of congestive heart failure. Optimization of the atrioventricular (AV) interval is essential to maximize the hemodynamic benefits of this therapy. Although Doppler echocardiography (echo) is the most widely used method, it is time-consuming, expensive, and operator-dependent. We examined the value of an impedance cardiography (IC)-based method of cardiac output (CO) measurement to optimize the AV interval in 5 men and 1 woman (mean age = 72 ± 11 years) during permanent LV pacing with a 4.8 Fr unipolar coronary sinus pacing lead. Simultaneous measurements of CO by IC and echo were performed at AV intervals of 50, 80, 110, 150, 180, and 225 ms during DDD pacing at 85 beats/min. The optimal AV interval varied between 110 and 180 ms. In 5 of 6 patients (83%), the optimal AV interval by echo and IC was identical. While CO measurements were higher with IC than with echo (6.1 ± 0.4L/min vs 4.7 ± 0.3 L/min, P < 0.05), CO measurements by IC and echo were closely correlated r = 0.67, P < 0.001). In conclusion, our initial experience suggests that IC is a reliable method of AV interval optimization during LV pacing. IC and echo measurements of CO during LV pacing were closely correlated.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0147-8389&site=1en_HK
dc.relation.ispartofPACE - Pacing and Clinical Electrophysiologyen_HK
dc.subject.meshAgeden_HK
dc.subject.meshAtrioventricular Node - physiopathologyen_HK
dc.subject.meshCardiac Outputen_HK
dc.subject.meshCardiac Pacing, Artificial - methodsen_HK
dc.subject.meshCardiography, Impedanceen_HK
dc.subject.meshEchocardiography, Doppleren_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshSick Sinus Syndrome - therapy - ultrasonographyen_HK
dc.titleImpedance cardiography for atrioventricular interval optimization during permanent left ventricular pacingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0147-8389&volume=26 &issue=1 Pt 2&spage=189&epage=91&date=2003&atitle=Impedance+Cardiography+for+Atrioventricular+Interval+Optimization+During+Permanent+Left+Ventricular+Pacing.en_HK
dc.identifier.emailTse, HF:hftse@hkucc.hku.hken_HK
dc.identifier.authorityTse, HF=rp00428en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1460-9592.2003.00014.x-
dc.identifier.pmid12687810-
dc.identifier.scopuseid_2-s2.0-0037247636en_HK
dc.identifier.hkuros81647en_HK
dc.identifier.hkuros100804-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037247636&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume26en_HK
dc.identifier.issue1 IIen_HK
dc.identifier.spage189en_HK
dc.identifier.epage191en_HK
dc.identifier.isiWOS:000181906600014-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridTse, HF=7006070805en_HK
dc.identifier.scopusauthoridYu, C=7404978038en_HK
dc.identifier.scopusauthoridPark, E=7402224798en_HK
dc.identifier.scopusauthoridLau, CP=7401968501en_HK

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