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- Title
Focused Assessment with Sonography for Urinary Schistosomiasis (FASUS)—pilot evaluation of a simple point-of-care ultrasound protocol and short training program for detecting urinary tract morbidity in highly endemic settings.
- Authors
Remppis, J; Verheyden, A; Bustinduy, A L; Heller, T; García-Tardón, N; Manouana, G P; Obiang, R; Adegnika, A A; Grobusch, M P; Ramharter, M; Joekes, E; Bélard, S
- Abstract
Background Urogenital schistosomiasis (UGS) causes inflammation and fibrosis of the urinary tract. In resource-limited settings, affordable tools for morbidity assessment in clinical care are needed. Point-of-care ultrasound has not yet been validated for UGS-related pathology. Methods We developed a protocol for Focused Assessment with Sonography for Urinary Schistosomiasis (FASUS), assessing pathology of the bladder wall, ureters and kidneys. Following standardized training, two clinicians performed FASUS on children and adults with hematuria in Lambaréné, Gabon. Recorded ultrasound clips were remotely reviewed by two ultrasound experts as a diagnostic reference. Results In 2015 and 2016, scans were performed in 118 patients. The image quality was sufficient in 90% of bladder views and more than 97% of kidney views. UGS-compatible pathology was detected in 51/118 (43%) by the operator and in 46/107 (43%) by the experts among baseline scans of sufficient quality. Inter-rater agreement between operators and experts was very good (κ > 0.8) for hydronephrosis and good (κ > 0.6) for bladder wall thickening. Conclusions FASUS is a promising clinical, point-of-care tool for detecting UGS-related urinary tract morbidity in symptomatic patients. Based on larger validation studies, appropriate diagnostic and therapeutic algorithms for the use of FASUS should be established.
- Subjects
GABON; URINARY organs; SCHISTOSOMIASIS; ULTRASONIC imaging; DISEASES; DIAGNOSTIC ultrasonic imaging; HEMATURIA; HYDRONEPHROSIS
- Publication
Transactions of the Royal Society of Tropical Medicine & Hygiene, 2020, Vol 114, Issue 1, p38
- ISSN
0035-9203
- Publication type
Article
- DOI
10.1093/trstmh/trz101