| Is it possible to predict post-residual voided urine by bladder scan before uroflowmetry--a useful and timesaving test to reduce the number of non--evaluable uroflow measurements? | |
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MedLine Citation:
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PMID: 20812533 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: Bladder-scan before uroflowmetry is useful to reduce non-evaluable Q(max)-data. A significant problem is to receive an adequate voided volume in uroflow-measurements. Aims of this study were 1--to confirm if pre-voiding bladder scan can reduce the number of inadequate flow measurements, 2--to establish threshold values for prevoiding bladderscan volumes before and after different treatments options 3--to study if it is possible to predict the post-residual voided volume. MATERIAL AND METHODS: 121 patients performed 2 uroflowmetry before and after different treatments. Bladder volume was measured by transabdominal ultrasound when the patient had the sensation to void and after uroflowmetry to calculate residual urine. Same investigations were repeated after different treatments. RESULTS: 21% of the patients had insufficient voided volume < 125 ml in 1st recording and 22% in 2nd; while 28% of the patient had a volume voided < 150 ml in 1st recording and 33% in 2nd. There was a strong correlation between the pre-voiding measured volume and the voided volume (r = 0.801, p < 0.0001), linear regression analysis yielded 1st flow rate recording is Void-Vol = 32.703 + (0.637 * Pre-Vol) and 2nd flow rate recording is Void-Vol = 16.264 + (0.704 * Pre-Vol) (r = 0.855; p < 0.0001). CONCLUSIONS: Bladder scanning before uroflowmetry reduces the number of non-evaluable Q(max) data. If a voided volumes of > 125 ml (> 150 ml) is required a mandatory pre-voiding bladder scan volume should be > 200 ml (> 250 ml), so non elegible Q(max) recordings will decrease from 21% to 5.8% (28% to 4.1%) in BPH patients who will undergo treatment and from 22% to 7.4% (33% to 5.8%) in BPH-treated patients. There is a difference between patients before and after treatment. It is not possible to predict the post residual voided volume by the bladder scan using the virtual calculation. |
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Authors:
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Mauro Dicuio; Stepan Vesely; Tomas Knutson; Jan-Erik Damber; Diego Ettore Cuzzocrea; Christer Dahlstrand |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Archivio italiano di urologia, andrologia : organo ufficiale [di] Società italiana di ecografia urologica e nefrologica / Associazione ricerche in urologia Volume: 82 ISSN: 1124-3562 ISO Abbreviation: Arch Ital Urol Androl Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-09-03 Completed Date: 2010-10-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9308247 Medline TA: Arch Ital Urol Androl Country: Italy |
Other Details:
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Languages: eng Pagination: 100-4 Citation Subset: IM |
Affiliation:
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Department of Urology, Sahlgrenska University Hospital, Göteborg, Sweden. dicuiomauro@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Humans Male Middle Aged Predictive Value of Tests Prostatic Hyperplasia / complications, physiopathology* Prostatism / etiology, physiopathology* Time Factors Urinary Bladder / physiopathology*, ultrasonography* Urinary Bladder Neck Obstruction / complications, physiopathology* Urination Disorders / etiology, physiopathology*, ultrasonography* Urodynamics* |
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