Interventions Involving Biofeedback to Improve Swallowing in People With Parkinson Disease and Dysphagia: A Systematic Review

Arch Phys Med Rehabil. 2021 Feb;102(2):314-322. doi: 10.1016/j.apmr.2020.06.033. Epub 2020 Aug 27.

Abstract

Objectives: To examine the effectiveness of biofeedback used in the treatment of adults with Parkinson disease (PD) and dysphagia, define the factors associated with biofeedback treatment outcomes, and inform a theory to guide the implementation of biofeedback in future dysphagia interventions.

Data sources: A systematic review using a narrative synthesis approach of all published and unpublished studies were sought with no date or language restrictions. Ten electronic databases (EMBASE, PubMed, CINAHL, Web of Science, Scopus, Science Direct, AMED, The Cochrane Database of Systematic Reviews, ProQuest Dissertations and Theses A & I, Google Scholar) were searched from inception to April 2019. This search was updated in January 2020. The methodological quality of included studies was assessed using Downs and Black checklist.

Study selection: Four studies were included. The methodological quality of the included studies was low with a high risk of bias. Data were analyzed narratively and descriptively. Despite the heterogeneity of the included studies, the findings suggest that interventions incorporating visual biofeedback may have positive effects on swallowing-related quality of life.

Conclusions: Based on these preliminary findings, we provide directions for further research and clinical interventions that incorporate an augmentative biofeedback component of swallowing interventions in people with PD. Future studies should be rigorously designed and set appropriate biofeedback treatment in terms of types, schedules, and timing.

Keywords: Deglutition disorders; Parkinson disease; Rehabilitation.

Publication types

  • Systematic Review

MeSH terms

  • Adult
  • Biofeedback, Psychology*
  • Deglutition Disorders / physiopathology*
  • Deglutition Disorders / rehabilitation*
  • Humans
  • Parkinson Disease / physiopathology*
  • Quality of Life