The effect of rhythmic breathing on the cardiorespiratory parameters in Acute Coronary Syndrome patients admitted at CCU

Coronary artery disease is the most common cardiovascular disease and cause of a lot of deaths worldwide. In patients with this disease, symptom management is performed both pharmacologically and non-pharmacologically. Rhythmic breathing is one of the non-pharmacological proposed methods. The aim of this study was to investigate the effect of rhythmic breathing on the cardiorespiratory parameters in Acute Coronary Syndrome patients admitted at CCU.
In this clinical trial, 80 patients with acute coronary syndrome were randomly divided into two interventional and control groups. The intervention group performed the rhythmic breathing for 20 minutes every 5 minutes once and it took 1 minute, and any intervention was not performed in the control group, but routine medical procedures were similar in both groups. Before and after the intervention, blood pressure, heart rate, respiration and oxygen saturation were recorded. The study instrument consisted of a demographic questionnaire and a data sheet for recording physiologic parameters, and the data were analyzed by using SPSS software. P values less than 0.05 was considered significant.
Based on the findings, there was no statistically significant difference between the groups in systolic blood pressure (P=0.65), diastolic blood pressure (P=0.53), respiratory rate (P=0.12), the rhythm of respiration (P=0.74), heart rate (P=0.61), the rhythm of the heartbeat (P=0.5) and arterial oxygen saturation (P= 0.67).
Despite the lack of significant findings in this study, rhythmic breathing can be conducted in other cardiovascular diseases with a larger sample size, profiting from its potential benefits.