Does flexible cystoscopy miss more tumours than rod-lens examination?
The first blind, prospective, randomised comparison of flexible cystoscopy with rod-lens cystoscopy was carried out on 53 consecutive volunteers with bladder tumours or haematuria. Three patients' recurrences were missed on flexible cystoscopy and 3 others on rod-lens examination. It was expected that the 9% rate of missed tumours would lessen with increased experience of flexible cystoscopy, as 2 of them occurred in the first 12 examinations and all of the lesions missed were < 5 mm in diameter. Rod-lens cystoscopy, the accuracy of which appears to have been measured for the first time, was no more sensitive.
Walker
L
L
Department of Urology, St Thomas' Hospital, London.
Liston
T G
TG
LLoyd-Davies
R W
RW
D000768:Anesthesia, General; D000772:Anesthesia, Local; D003558:Cystoscopy / Q000379:methods*; D005336:Fiber Optic Technology; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D011446:Prospective Studies; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*