Feasibility and safety of neurophysiological facilitation of respiration on pain, oxygen saturation, respiratory rate and breathing pattern in upper abdominal surgery patients.: Quasi-experimental study.

Patients who have undergone upper abdominal surgery will be included in the study trial if they meet the inclusion criteria. The written and oral consent of all patients will be obtained, and the procedure will be explained. Demographic data will be noted. Baseline data, which include pain, oxygen saturation, respiratory rate, and breathing pattern, will be assessed. The Patients will be given a rhythmic initiation technique. On the second postoperative day, the patients will receive one session by a physiotherapist, giving NPF of respiration technique and the treatment consisting of four 15-minute manual stimulations (upper chest wall, lower lateral chest wall, sternum, and lower rib cage/diaphragm). The pressure will be maintained for 10 seconds. Ten repetitions will be given in two sets with a rest period of 1 minute. Pain, oxygen saturation, respiratory rate, and breathing pattern will be assessed before and after the session. We will assess safety by collecting information about any adverse events experienced by the patients.