Characteristics of genitourinary tuberculosis in Sri Lanka: A retrospective cohort study

Abstract

BackgroundAlthough genitourinary Tuberculosis (GUTB) is the second commonest source of extrapulmonary TB in most countries, the reported rate of GUTB in Sri Lanka remains very low. Furthermore, the characteristics of GUTB in Sri Lanka have not been published due to paucity of data. Therefore, we aimed to study the clinical and imaging characteristics, treatment modalities and outcomes of GUTB in Sri Lanka. MethodsA retrospective analysis was performed based on patients treated by a single urological surgeon in two consecutive centres over a period of 21 years. All patients (n=82, males = 45 (54.9%), median age: 51 years; range: 26 - 75) with a microbiological and/or histological diagnosis of GUTB were included. Median duration of follow-up was 24 months (range: 6- 96). Data were obtained from direct patient interview, hospital notes and clinic files. ResultsCommonest prominent symptoms at presentation included haematuria (n=13, 15.8%) and scrotal manifestations (n=12, 14.6%). Mantoux was either positive (>10mm) (n=62/70) or equivocal (>5mm) (n=8/70). Erythrocyte sedimentation rate (ESR) was available in 69 patients and was >30 in 54 (78.3%) patients. Chest x-ray and x-ray kidney-ureter-bladder (KUB) abnormalities were detected in 9 (11%) and 6 (7.3%) respectively. CT-urography was performed in 72 patients and abnormalities were detected in 57 (79%) patients. Forty-two patients underwent a cystoscopy and 73.8% (n=31) had abnormal findings. Microbiological diagnosis was feasible in 42 (51.2%) and rest were diagnosed histologically. Commonest organs involved were kidney (64.6%, n=53), ureters (51.2%, n=42), bladder (43.9%, n=36) and testis/epididymis (14.6%, n=12). One patient had prostate TB. All were treated primarily with anti-TB drugs however, 50 (61%) had indications for some form of therapeutic intervention. The majority of interventions were reconstruction surgeries (n=20, 24.4%) followed by excision surgeries (n=19, 23.2%) and drainage procedures (n=11, 13.4%).Seven patients developed serious adverse reactions to anti-TB drugs. Five patients developed a thimble bladder and 3 patients developed end-stage renal failure. Two patients had relapse of infection. ConclusionCT-Urography, cystoscopy and histopathology are essential adjuncts to diagnose GUTB. Most ureteric strictures, non-functioning kidneys and epididymal masses needed surgical treatment. Long-term follow up is essential to detect progressive renal dysfunction.

Clinical characteristics and outcome of genitourinary tuberculosis in Sri Lanka: an observational study

“…Authors thank Dr. Nirupa Pallewatta, Director, NPTCCD for providing latest statistics related to GUTB in Sri Lanka. This study has been published as a preprint [ 28 ].…”