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Acta Cardiol Sin. 2018 Nov;34(6):488-495. doi: 10.6515/ACS.201811_34(6).20180518A.

Fingertip Reactive Hyperemia Peripheral Arterial Tonometry Score Predicts Response to Biventricular Pacing.

Author information

1
Department of Cardiology, Memorial Ankara Hospital, Ankara.
2
Department of Cardiology, Akademi Hospital, Kocaeli.
3
Department of Cardiology, High Speciality Hospital, Kirikkale, Turkey.

Abstract

Purpose:

The objectives of this study were to: (i) evaluate endothelial function via fingertip reactive hyperemia peripheral arterial tonometry (RH-PAT) among heart failure (HF) patients receiving cardiac resynchronization therapy (CRT), (ii) assess the effects of CRT on RH-PAT score, and (iii) investigate whether RH-PAT score can identify CRT response.

Methods:

A total of 63 patients (61.8 ± 10.3 years; 50 males; left ventricular (LV) ejection fraction 24.3 ± 3.9%) with HF who received CRT were enrolled. Endothelial function via RH-PAT was assessed 1 day before and 6 months after CRT. Minnesota Living with Heart Failure Questionnaire (MLWHFQ) was used to assess clinical improvements. CRT response was defined as a reduction in LV end-systolic volume ≥ 15% at 6 months.

Results:

A RH-PAT score of < 1.7 signified a cut-off for endothelial dysfunction (ED). Baseline ED was observed among 43 (68.3%) patients and was more prevalent in responders (76.1% vs. 47.1%, p = 0.037). RH-PAT score improved 6 months after CRT (1.58 ± 0.35 vs. 1.71 ± 0.31, p = 0.012). A RH-PAT score of < 1.7 was a significant independent predictor of CRT response in multivariate logistic regression analysis (β = 1.275, OR = 3.512, 95% CI = 1.231-11.477, p = 0.032). The severity of ED was an independent predictor of LV reverse remodeling (β = -8.873, p = 0.015). Spearman's correlation analysis revealed moderate positive correlations between an improvement in RH-PAT (ΔRH-PAT) and LV reverse remodeling (r = 0.461, p = 0.001) and MLWHFQ score (r = 0.440, p = 0.001).

Conclusions:

ED detected via RH-PAT could predict the response to CRT. The RH-PAT score increased 6 months after CRT and was correlated with echocardiographic and clinical improvements.

KEYWORDS:

Cardiac resynchronization therapy; Endothelial dysfunction; Heart failure; Peripheral arterial tonometry; Response

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