Neural respiratory drive assessment and its correlation with inspiratory muscle strength in patients undergoing open-heart surgery: A cross-sectional study.

IF 1.5 Q3 REHABILITATION

Physiotherapy Research International Pub Date : 2024-01-01 DOI:10.1002/pri.2073

Karan Pongpanit, Jitanan Laosiripisan, Preeyaphorn Songsorn, Noppawan Charususin, Kornanong Yuenyongchaiwat

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引用次数: 0

Abstract

Background and purpose: Pulmonary dysfunction and inspiratory muscle weakness are frequently observed after cardiac surgery. Understanding the load on and capacity of respiratory muscles can provide valuable insights into the overall respiratory mechanics and neural regulation of breathing. This study aimed to assess the extent of neural respiratory drive (NRD) and determine whether admission-to-discharge differences in NRD were associated with inspiratory muscle strength changes among patients undergoing open-heart surgery.

Methods: This cross-sectional study was conducted on 45 patients scheduled for coronary artery bypass graft or heart valve surgery. NRD was measured using a surface parasternal intercostal electromyogram during resting breathing (sEMGpara tidal) and maximal inspiratory effort (sEMGpara max). Maximal inspiratory pressure (MIP) was used to determine inspiratory muscle strength. Evaluations were performed on the day of admission and discharge.

Results: There was a significant increase in sEMGpara tidal (6.9 ± 3.6 μV, p < 0.001), sEMGpara %max (13.7 ± 11.2%, p = 0.008), and neural respiratory drive index (NRDI, the product of EMGpara %max and respiratory rate) (337.7 ± 286.8%.breaths/min, p < 0.001), while sEMGpara max (-43.6 ± 20.4 μV, p < 0.01) and MIP (-24.4 ± 10.7, p < 0.001) significantly decreased during the discharge period. Differences in sEMGpara tidal (r = -0.369, p = 0.045), sEMGpara %max (r = -0.646, p = 0.001), and NRDI (r = -0.639, p = 0.001) were significantly associated with a reduction in MIP.

Discussion: The findings indicate that NRD increases after open-heart surgery, which corresponds to a decrease in inspiratory muscle strength.

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开胸手术患者的神经呼吸驱动力评估及其与吸气肌力的相关性：横断面研究

背景和目的：心脏手术后经常会出现肺功能障碍和吸气肌无力。了解呼吸肌的负荷和能力可为了解整体呼吸力学和呼吸的神经调节提供有价值的信息。本研究旨在评估神经呼吸驱动（NRD）的程度，并确定入院到出院期间 NRD 的差异是否与开胸手术患者吸气肌力的变化有关：这项横断面研究针对 45 名计划接受冠状动脉旁路移植或心脏瓣膜手术的患者。在静息呼吸（sEMGpara tidal）和最大吸气用力（sEMGpara max）时，使用表面胸骨旁肋间肌电图测量 NRD。最大吸气压力（MIP）用于测定吸气肌力。评估在入院和出院当天进行：结果：sEMGpara潮气量明显增加（6.9 ± 3.6 μV，p 讨论）：研究结果表明，开胸手术后 NRD 增加，这与吸气肌力下降相对应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physiotherapy Research International REHABILITATION-

CiteScore

3.30

自引率

5.90%

发文量

期刊介绍： Physiotherapy Research International is an international peer reviewed journal dedicated to the exchange of knowledge that is directly relevant to specialist areas of physiotherapy theory, practice, and research. Our aim is to promote a high level of scholarship and build on the current evidence base to inform the advancement of the physiotherapy profession. We publish original research on a wide range of topics e.g. Primary research testing new physiotherapy treatments; methodological research; measurement and outcome research and qualitative research of interest to researchers, clinicians and educators. Further, we aim to publish high quality papers that represent the range of cultures and settings where physiotherapy services are delivered. We attract a wide readership from physiotherapists and others working in diverse clinical and academic settings. We aim to promote an international debate amongst the profession about current best evidence based practice. Papers are directed primarily towards the physiotherapy profession, but can be relevant to a wide range of professional groups. The growth of interdisciplinary research is also key to our aims and scope, and we encourage relevant submissions from other professional groups. The journal actively encourages submissions which utilise a breadth of different methodologies and research designs to facilitate addressing key questions related to the physiotherapy practice. PRI seeks to encourage good quality topical debates on a range of relevant issues and promote critical reflection on decision making and implementation of physiotherapy interventions.