Controlled hypoxia-hyperoxytherapy as a component of a targeted approach in the rehabilitation of patients with multimorbidity: a single-center, randomized, placebo-controlled, prospective study

Abstract

BACKGROUND: Multimorbidity is one of the most important public health problems, leading not only to a deterioration in the functional abilities of an individual, but also to an increase in the disability of the population, which determines the need to use effective measures in the treatment and rehabilitation of patients with multimorbid pathology.

AIM: The aim of this study was to evaluate the effect of a two-week medical rehabilitation program including the respiratory therapy method based on short-term intermittent exposure to hypoxia and hyperoxia on the dynamics of hypoxia-inducible factor-1 (HIF-1) and C-reactive protein in patients with multiple chronic diseases. The novelty of this study is due to the peculiarities of the study group — patients with multimorbid pathology.

MATERIALS AND METHODS: A single-center, randomized, placebo-controlled, prospective study (NCT05053672, ClinicalTrials.gov) included 42 patients aged 43 to 68 years with multimorbid pathology: generalized osteoarthritis — 61.9%, knee OA — 21.4%, hip OA — 16.7%, controlled arterial hypertension stage I–II — 90.5%, post-Covid syndrome — 100%. Patients were randomized into 2 groups by the method of numbered identical containers. According to clinical and demographic characteristics of patients, concomitant pathology, C-reactive protein and HIF-1 levels, the studied groups were comparable. The main group (27 patients) received a course (8–10 sessions) of individually dosed hypoxy-hyperoxytherapy on the basis of biofeedback (reoxytherapy) against the background of the standard complex of medical rehabilitation. The comparison group (15 patients) received sham reoxy therapy (placebo treatment) along with standard rehabilitation.

RESULTS: The data obtained as a result of the study in multimorbid patients using reoxy-therapy clearly demonstrated reduction of clinical symptoms, improvement of general well-being according to visual analogue scale and decrease of C-reactive protein as a classical marker of inflammation against the background of stabilization of HIF-1 dynamics.

CONCLUSION: The use of biofeedback-based short-term intermittent exposure to hypoxia and hyperoxia (reoxy therapy) in patients with different initial characteristics in terms of clinical health status and multimorbid pathology is reasonable taking into account modern personalized approaches to medical rehabilitation.

Keywords

multimorbidity / hypoxia-hyperoxytherapy / HIF-1

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