Clinical Measurement of Maximum Safe Ureteral Distensibility Using a Novel Force Sensor Presentation - Amanda McCormac
May 3, 2023
Amanda McCormac presented on Clinical Measurement of Maximum Safe Ureteral Distensibility Using a Novel Force Sensor, which aimed to determine the natural distensibility of the human ureter using the UCI force sensor. The study involved 75 patients undergoing uteroscopy, and the results showed that the unstented human ureter can safely size to an average circumference of 14 French and 16 French if pre-stented. The study found that age, gender, and pre-treatment with tamsulosin did not impact dilator size, and pre-treatment with tamsulosin was not found to be beneficial. The study's findings have implications for clinicians in selecting appropriate instruments and determining treatment options for patients undergoing uteroscopy.
Biography:
Amanda McCormac, Department of Urology, University of California, Irvine, CA
Amanda McCormac, Department of Urology, University of California, Irvine, CA
Read the Full Video Transcript
Amanda McCormac: Dear viewers, we sought to define the natural distensibility of the human ureter using the UCI force sensor. 75 patients undergoing uteroscopy underwent sequential passage of a 35 centimeter urethral dilator in two French increments until six Newtons was reached. The median maximum dilator diameter was 14 French in the unstented ureter. Pre-stenting favored passage of greater than or equal to 16 French dilators. Neither age nor gender impacted dilator size. Pre-treatment with tamsulosin was found to be of no benefit. In conclusion, the unstented human ureter can be safely sized to an average circumference of 14 French, which increases to 16 French if pre-stented. We were unable to identify any benefit from pre-treatment with tamsulosin. Thank you.
Amanda McCormac: Dear viewers, we sought to define the natural distensibility of the human ureter using the UCI force sensor. 75 patients undergoing uteroscopy underwent sequential passage of a 35 centimeter urethral dilator in two French increments until six Newtons was reached. The median maximum dilator diameter was 14 French in the unstented ureter. Pre-stenting favored passage of greater than or equal to 16 French dilators. Neither age nor gender impacted dilator size. Pre-treatment with tamsulosin was found to be of no benefit. In conclusion, the unstented human ureter can be safely sized to an average circumference of 14 French, which increases to 16 French if pre-stented. We were unable to identify any benefit from pre-treatment with tamsulosin. Thank you.