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Assessing Body Temperature - Rectal

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A New Technique for Treating Low-risk Prostate Cancer—Super Active Surveillance
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Correlation of thermocouple data with voiding function after prostate cryoablation.

David A Levy1

  • 1Department of Regional Urology, Cleveland Clinic Fairview Cancer Center, Glickman Urological and Kidney Institute, Cleveland, OH 44111, USA. Levyd3@CCF.org

Urology
|October 27, 2009
PubMed
Summary
This summary is machine-generated.

Thermocouple data can predict urinary issues after prostate cryosurgery. Older age and lower external sphincter temperatures (≤23°C) correlate with post-treatment urgency, frequency, or retention, suggesting targeted freezing may reduce side effects.

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Area of Science:

  • Urology
  • Surgical Oncology
  • Medical Physics

Background:

  • Prostate cryosurgery is a treatment for localized prostate cancer.
  • Postoperative voiding dysfunction is a known complication.
  • Objective methods to predict these complications are needed.

Purpose of the Study:

  • To investigate correlations between thermocouple temperature data and postoperative voiding function after prostate cryosurgery.
  • To identify predictive factors for altered voiding function post-cryoablation.

Main Methods:

  • Retrospective analysis of 58 patients undergoing prostate cryoablation.
  • Multivariate analysis of clinical factors and thermocouple temperature recordings.
  • Assessment of postoperative voiding function including urgency, frequency, and retention.

Main Results:

  • 37.9% of patients experienced postcryoablation urgency, frequency, or retention.
  • Older age (P = .037) and external sphincter temperature ≤23°C (P = .012) were significant predictors.
  • Anterior rectal wall temperature showed a weak association (P = .079).

Conclusions:

  • Thermocouple data offer an objective measure for assessing cryosurgical outcomes.
  • External sphincter temperature is a significant predictor of postoperative voiding dysfunction.
  • Limiting freezing at the external sphincter may reduce morbidity; further research is warranted.