Manual Versus Computer Methods for Diagnosing Obstruction From Pressure-Flow Tracings in Patients With Benign Prostatic Hyperplasia

ABSTRACTPurpose: We compared manual versus computer analysis of pressure-flow tracings for diagnosing bladder outlet obstruction in patients with benign prostatic hyperplasia.Materials and Methods: A total of 105 patients with a clinical diagnosis of prostate enlargement and lower urinary tract symptoms was included in the study irrespective of free flow rates. Pressure-flow studies were performed in duplicate and tracings were evaluated by 2 independent investigators blinded to patient status. Manual reading of urodynamic printouts and fully computerized analysis using CLIM* software were done. All urodynamic parameters relevant to the diagnosis of outlet obstruction were compared using the Abrams-Griffiths and Schafer nomograms. Group specific urethral resistance factors were also compared.*Medidenta, Groningen, The Netherlands.Results: There was good correlation between manual and computer derived values of maximum flow (r = 0.9874, p

Keywords:

• Urology
• Detrusor pressure
• Bladder outlet obstruction
• Nomogram
• Prostate
• Patient status
• Pathology
• Urinary system
• Hyperplasia
• Lower urinary tract symptoms
• Medicine
• computer methods
• in patient

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