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Preoperative MRI-measured coronal membranous urethra length may predict urinary continence: Study

Dr. Shravani DaliBy Dr. Shravani DaliPublished On 2022-02-14T09:00:07+05:30  |  Updated On 2022-02-14T09:00:37+05:30
Preoperative MRI-measured coronal membranous urethra length may predict urinary continence: Study

Preoperative MRI-measured coronal membranous urethra length is a predictor of urinary continence, according to a study published in the Radiology. Urinary continence after radical prostatectomy (RP) is an important determinant of patient quality of life. Anatomic measures at prostate MRI have been previously associated with continence outcomes, but their predictive ability and...

Preoperative MRI-measured coronal membranous urethra length is a predictor of urinary continence, according to a study published in the Radiology.

Urinary continence after radical prostatectomy (RP) is an important determinant of patient quality of life. Anatomic measures at prostate MRI have been previously associated with continence outcomes, but their predictive ability and interrater agreement are unclear in comprehensive clinical models.

A study was conducted to evaluate the predictive ability and interrater agreement of MRI-based anatomic measurements of post-RP continence when combined with clinical multivariable models.

In this retrospective cohort study, continence outcomes were evaluated in men who underwent RP from August 2015 to October 2019. Preoperative MRI-based anatomic measures were obtained retrospectively by four abdominal radiologists. Before participation, these radiologists completed measure-specific training. Logistic regression models were developed with clinical variables alone, MRI variables alone, and combined variables for predicting continence at 3, 6, and 12 months after RP; some patient data were missing at each time point. Interrater agreement of MRI variables was assessed by using intraclass correlation coefficients (ICCs).

The Results of the study are:

A total of 586 men were included (mean age ± standard deviation: 63 years ± 7). The proportion of patients with incontinence was 0.2% (one of 589) at baseline, 27% (145 of 529) at 3 months, 14% (63 of 465) at 6 months, and 9% (37 of 425) at 12 months. Longer coronal membranous urethra length (MUL) improved the odds of post-RP continence at all time points (odds ratio per 1 mm: 0.86 [95% CI: 0.80, 0.93], P < .001; 0.86 [95% CI: 0.78, 0.95], P = .003; and 0.79 [95% CI: 0.67, 0.91], P = .002, respectively) in models that incorporated both clinical and MRI predictors. No other MRI variables were predictive. Age and baseline urinary function score were the only other predictive clinical variables at every time point. Interrater agreement was moderate (ICC, 0.62) for MUL among readers with measure-specific prostate MRI training and poor among those without the training (ICC, 0.38).

Thus, the researchers concluded that preoperative MRI-measured coronal membranous urethra length was an independent predictor of urinary continence after prostatectomy.

Reference:

Preoperative Prostate MRI Predictors of Urinary Continence Following Radical Prostatectomy by Hannah Lamberg et al. published in the Radiology.

https://pubmed.ncbi.nlm.nih.gov/35040671/



Radiology Prostate Preoperative Prostate MRI Predictors Urinary Continence Radical Prostatectomy 
Source : Radiology
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences.

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