The effect of pursed lip breathing on arterial blood oxygen saturation in patients with COVID-19

Determining the effect of bud lip breathing on arterial blood oxygen saturation in people with COVID-19

A clinical trial with a control group, with parallel groups, randomized, phase 2 on 70 patients, and random block method will be used.

Patients with COVID-19 referred to the Shahid Dr. Chamran hospital in Tehran city are selected by the convenience method and divided into two groups with Block randomization method. Then the results will be compared in the two groups.

Inclusion criteria include: Being between 18 and 70 years old, the ability to do lip-bud breathing, Having Spo2 above 85%, breathing rate less than 40 times per minute, Positive PCR or lung involvement on CT scan. Exclusion criteria include: Heart rate less than 40 or more than 120 beats per minute, History of new cardiac arrhythmia or ischemia and Having hemoglobin less than 11 grams per deciliter.

Intervention group: in this group, in addition to the usual treatments and care, the patients were taught face-to-face method, the lip bud breathing technique 2 times a day with an interval of 5 minutes and 10 times each time on the second, third and fourth days of hospitalization. Control group: This group receives only the usual treatments and care.

Arterial blood oxygen saturation, heart rate, duration of hospitalization, blood pressure, respiratory rate

First, a convenient sampling method will be used. The samples will then be placed in quadruple blocks by random block randomization. Random allocation software is also used as a randomization tool. Non-transparent envelopes will be used and will be sealed with random sequences (Sequentially numbered, sealed, opaque envelopes). They are placed in order. In order to maintain the random sequence, numbering is done on the outer surface of the envelopes in the same way. Finally, the lids of the envelopes are glued and placed inside a box, respectively. At the beginning of the registration of participants, based on the order of entry of eligible participants in the study, one of the envelopes will be opened in order and the assigned group of the participants will be revealed.