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Combined electrical...
Combined electrical and global markers of dyssynchrony predict clinical response to Cardiac Resynchronization Therapy
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- Bajraktari, Gani (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Rönn, Folke (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Ibrahimi, Pranvera (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Jashari, Fisnik (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Lindmark, Krister (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Jensen, Steen M (författare)
- Umeå universitet,Kardiologi,Heart Centre
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- Henein, Michael Y (författare)
- Umeå universitet,Kardiologi,Heart Centre
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(creator_code:org_t)
- 2014-09-02
- 2014
- Engelska.
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Ingår i: Scandinavian Cardiovascular Journal. - : Informa UK Limited. - 1401-7431 .- 1651-2006. ; 48:5, s. 304-310
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
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- AIM: To assess potential additional value of global left ventricular (LV) dyssynchrony markers in predicting cardiac resynchronization therapy (CRT) response in heart failure (HF) patients. METHODS: We included 103 HF patients (mean age 67 +/- 12 years, 83% male) who fulfilled the guidelines criteria for CRT treatment. All patients had undergone full clinical assessment, NT-proBNP and echocardiographic examination. Global LV dyssynchrony was assessed using total isovolumic time (t-IVT) and Tei index. On the basis of reduction in the NYHA class after CRT, patients were divided into responders and non-responders. RESULTS: Prolonged t-IVT [0.878 (range, 0.802-0.962), p = 0.005], long QRS duration [0.978 (range, 0.960-0.996), p = 0.02] and high tricuspid regurgitation pressure drop [1.047 (range, 1.001-1.096), p = 0.046] independently predicted response to CRT. A t-IVT >= 11.6 s/min was 67% sensitive and 62% specifi c (AUC 0.69, p = 0.001) in predicting CRT response. Respective values for a QRS >= 151 ms were 66% and 62% (AUC 0.65, p = 0.01). Combining the two variables had higher specifi city (88%) in predicting CRT response. In atrial fibrillation (AF) patients, only prolonged t-IVT [0.690 (range, 0.509 -0.937), p = 0.03] independently predicted CRT response. CONCLUSION: Combining prolonged t-IVT and the conventionally used broad QRS duration has a significantly higher specifi city in identifying patients likely to respond to CRT. Moreover, in AF patients, only prolonged t-IVT independently predicted CRT response.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Nyckelord
- cardiac resynchronization therapy
- echocardiography
- heart failure
- predictors
- total isovolumic time
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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