《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2023, Vol. 29 ›› Issue (1): 104-109.doi: 10.3969/j.issn.1006-9771.2023.01.016

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Effect of external diaphragm pacing therapy combined with abdominal functional electrical stimulation on respiratory function for stroke patients

QIAO Wei1,2, LIU Su1(), WANG Ying1, HOU Tingting1,2, SONG Sijin1,2, WANG Siye1, SUN Li1, ZHANG Yingying1   

  1. 1. Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
    2. Dalian Medical University, Dalian, Liaoning 116044, China
  • Received:2022-10-13 Revised:2022-11-14 Published:2023-01-25 Online:2023-02-17
  • Contact: LIU Su, E-mail: 327202278@qq.com
  • Supported by:
    Nantong Science and Technology Program(MSZ2022116);Nantong Science and Technology Program(MSZ19240)

Abstract:

Objective To explore the effect of external diaphragm pacing therapy combined with abdominal functional electrical stimulation on respiratory function for stroke patients.

Methods From October, 2020 to September, 2022, 54 stroke patients were randomly divided into control group (n= 18), external diaphragm pacing group (n= 18) and combined treatment group (n= 18). All the groups received breathing training, while the external diaphragm pacing group received external diaphragm pacing therapy, and the combined treatment group received external diaphragm pacing and abdominal functional electrical stimulation therapy, for two weeks. They were measured forced vital capacity (FVC), forced expiratory volume in first second (FEV1), ratio of forced expiratory volume in first second in forced vital capacity (FEV1/FVC), peak expiratory flow (PEF), maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) with pulmonary function instrument; measured diaphragmatic excursion (DE) and diaphragmatic thickness (DT) with ultrasound, before and after treatment.

Results Three cases in the control group, two cases in the external diaphragm pacing group and one case in the combined treatment group dropped off. The FVC, FEV1, PEF, MIP, MEP and DE improved in all the groups (|t| > 3.366, P< 0.01) after treatment; and the FVC, FEV1, MIP and DE increased more in the combined treatment group and the external diaphragm pacing group than in the control group (P< 0.05); the FVC and FEV1 increased more in the combined treatment group than in the external diaphragm pacing group (P< 0.05).

Conclusion External diaphragm pacing therapy may improve ventilation and inspiratory muscle strength, and increase diaphragm movement for stroke patients; while the ventilation improved more after combining with abdominal functional electrical stimulation.

Key words: stroke, external diaphragm pacing, abdominal muscles, electrical stimulation, respiratory function

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