Microbiological profile of adult septic arthritis inpatients in Maharat Nakhon Ratchasima Hospital 2016 – 2020.

Abstract

     This study was retrospective survey research. The objective was to study the microbiological characteristics of patients with septic arthritis admitted to Maharat Nakhon Ratchasima Hospital in 2016 - 2020. Analyzed medical records of patients aged 15 and over with infectious arthritis who were admitted as inpatients to Maharat Nakhon Ratchasima Hospital from January 1, 2016, to December 31, 2020, based on ICD-10 codes for infectious arthritis and physician diagnosis. Interested variables included age, underlying disease, hospitalization duration, joint symptoms and signs, number and location of affected joints, frequency and results of joint aspiration, and treatment outcomes. Descriptive statistics were used to evaluate the results.
     Results: 274 patients with infectious arthritis were studied, with 234 patients undergoing joint aspiration for laboratory testing, of which 228 were successful. No pathogens were found in 150 cases, while 78 cases had positive results. The most common pathogens found were Staphylococcus aureus (33 cases, 42.9%), Group B Streptococcus (14 cases, 18.2%), Streptococcus pyogenes (7 cases, 9.1%), Burkholderia pseudomallei (5 cases, 6.5%, and Escherichia coli (5 cases, 6.5%). Nine cases (11.7%) showed antibiotic-resistant organisms in joint aspirate. Patients with Group B Streptococcus infection were found to have positive results in joint aspirate. Mortality rate was not difference among each joint aspirate result.