The factors associated with mortality in patients with cerebrovascular stenosis or occlusion at the Department of Internal Medicine King Narai Hospital.

Abstract

     This study was retrospective study aimed to investigate the causes of death and factors associated with mortality in patients with ischemic stroke admitted to the Department of Internal Medicine, Phra Narai Maharaj Hospital. The sample group included inpatients diagnosed with ischemic stroke who were admitted to the Internal Medicine Department of Phra Narai Maharaj Hospital between October 1, 2020, and September 30, 2022. A 1:1 ratio sampling method was used, including 156 surviving patients and 156 deceased patients. Data were analyzed using descriptive statistics. The Chi-square test was used to compare data between the groups. Factors associated with mortality were analyzed using binary logistic regression, with a 95% confidence interval (CI), and the relative risk (RR) was presented.

     Results: Among the deceased ischemic stroke patients, the majority were male (87 patients, 55.77%) with a mean age of 74.78 years. Post-rtPA bleeding complications were found in 14 patients (8.97%). Infection-related complications showed that pneumonia was the most common (42 patients, 26.92%), followed by urinary tract infections (30 patients, 19.23%). The average length of hospital stay was 17.34 days, which was longer than that of the surviving group. Regarding access time to medical services, no significant differences were observed between the deceased and surviving groups. Multiple logistic regression analysis identified that, compared to other groups, stroke severity assessed using the NIHSS had a 3.79 times higher risk of death. Pneumonia infection increased the risk of death by 5.23 times, and patients with diabetes had a 2.98 times higher risk of mortality.