Physiotherapist at the State University of Paraíba (UEPB), Campina Grande, Paraíba, Brazil.
Physiotherapist, Postgraduate Program Rehabilitation Sciences at the Federal University of Rio Grande do Norte (UFRN), Santa Cruz, Brazil.
Complement Ther Clin Pract. 2021 Aug;44:101420. doi: 10.1016/j.ctcp.2021.101420. Epub 2021 May 26.
Systemic arterial hypertension (SAH) is considered a multifactorial disease characterized by a persistent increase in blood pressure levels. Currently, the efficient control of blood pressure is achieved by both the use of pharmacological therapy and the control of risk factors. In addition, the use of biofeedback (BFB) as a non-pharmacological strategy represents a promising therapy.
This study aims to evaluate the effects of BFB on systolic and diastolic blood pressure levels, as well as on environmental and psychosocial factors in patients with essential SAH.
A systematic review (SR) of the literature was carried out in English and Portuguese using the following databases: SCIELO, LILACS, CINAHL, Cochrane, and PubMed. The search strategy included a mix of terms for the key concepts Biofeedback, Heart Rate Variability, Psychophysiological Feedback, and Heart Biofeedback. Studies were analyzed independently.
The included studies evaluated a total of 462 subjects of both sexes. The meta-analysis revealed that BFB significantly elicited greater blood pressure control, mainly improving DBP levels (Z = 2.15; P = 0.03).
Besides improvement in DBP readings post-intervention, BFB also resulted in better disease-related environmental and psychosocial factors, such as reduced stress levels. The magnitude of effect did not appear to depend on the type of BFB applied.
This SR demonstrated that BFB with visual and/or auditory information is a complementary option to pharmacological treatment in the management of individuals with systolic and diastolic arterial hypertension. Moreover, the use of this adjuvant therapy seems to facilitate better DPB control.
全身性动脉高血压（SAH）被认为是一种多因素疾病，其特征为血压水平持续升高。目前，血压的有效控制既可以通过药物治疗，也可以通过控制危险因素来实现。此外，生物反馈（BFB）作为一种非药物策略的使用代表了一种有前途的治疗方法。
本研究旨在评估 BFB 对原发性 SAH 患者的收缩压和舒张压水平以及环境和心理社会因素的影响。
使用 SCIELO、LILACS、CINAHL、Cochrane 和 PubMed 等英文和葡萄牙文数据库进行了系统文献回顾（SR）。搜索策略包括了用于关键概念生物反馈、心率变异性、心理生理反馈和心脏生物反馈的术语混合。研究是独立分析的。
纳入的研究共评估了 462 名男女受试者。荟萃分析显示，BFB 显著促进了血压控制，主要是改善了舒张压水平（Z=2.15；P=0.03）。
除了干预后 DBP 读数的改善外，BFB 还导致了与疾病相关的环境和心理社会因素的改善，例如降低了压力水平。影响的大小似乎并不取决于所应用的 BFB 类型。
本 SR 表明，具有视觉和/或听觉信息的 BFB 是药物治疗管理收缩期和舒张期动脉高血压患者的补充选择。此外，这种辅助治疗的使用似乎有助于更好地控制 DPB。
