Abstract:
This descriptive research aimed at studying patients preoperative physical status, body mass index, and intraoperative status on the occurrence of Systemic Inflammatory Response Syndrome (SIRS) within 24 hours post operation among patients who underwent abdominal surgery. The study sample comprised 90 patients who obtained elective surgeries at a university hospital in metropolitan area of Bangkok. Data collection was conducted by utilizing ASA classification, BMI scale, Surgical Apgar score, and the SIRS scale. Logistic regression analysis was employed for data analysis. The majority of the sample were male (52%) with an average age of 62.36 years (S.D.=15.05) and 52.2% of them had an ASA classification of 3 and an average of 2.46 (S.D. = 0.60). The average BMI was 23.78 Kg/m2 (S.D. = 9.72) and the average Surgical Apgar score was 6.34 (S.D. = 1.98). In regard to the occurrence of SIRS, it was found that 70% of patients experienced post operative SIRS within 24 hours after surgery. Patients preoperative physical status (OR = 3.970; 95%CI 1.392-11.326, p= .010), intraoperative status (OR=0.202; 95%CI 0.84-0.482, p=.000), and body mass index (OR = 0.604; 95%CI 0.339-1.081, p=.089) could together predict and explain the variance of SIRS at 48.30% (R2 = .483, p < .05). The results of the study lead to the recommendation that all patients undergoing abdominal surgeries should be monitored for occurrence of SIRS within 24 hours. In particular, those who have an ASA classification of 2 and above, as well as a Surgical Apgar score of 6 or less should be closely monitored continuously after receiving the operation.