Presented by: Rami Ludyansky MD
Hadassah University Hospital

Introduction

We aimed to evaluate operative time with the outcomes of ureteroscopy (URS) and investigate the relationship between these factors, and assess if longer operative times were associated with a higher risk of complications.

Materials

This study aimed to investigate various factors influencing stenting requirements in patients undergoing retrograde intrarenal surgery (RIRS) and/or ureteroscopic surgery (URS). A comprehensive analysis was conducted on a sample of 2432 patients. The patients were divided into two groups: with ana without preoperative ureteral stent. The operative time, duration of prior stent placement, total stone volume were respectively compared.

Results

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The impact of time elapsed since the prior stent on subsequent stenting in the current procedure was examined. Results indicated a positive relationship, suggesting that longer intervals between prior stenting procedures were associated with an increased likelihood of requiring a new stent. Additionally, the influence of stone volume on the need for stenting in the current procedure was explored. Findings demonstrated a positive correlation, indicating that larger stone volumes were associated with a higher probability of requiring a stent. Furthermore, the correlation between the time passed from the last stenting procedure and the duration of the current procedure was investigated. Statistical analysis revealed no significant correlation between these variables (the average procedure time for patients without a prior stent was 26 minutes, whereas patients with a prior stent experienced a similar or even longer duration (29 minutes). Lastly, a comparison was made between patients with and without prior stents to determine stenting rates in the current procedure. The results showed differing percentages of patients requiring a new stent based on their prior stenting status.

Conclusion

These findings emphasize the importance of considering factors such as timing of prior stenting, stone volume, and prior stent presence in decision-making for stenting during RIRS and URS procedures. This research contributes to enhancing surgical decision-making and optimizing patient outcomes in urological interventions.

Funding

Hadassah University Hospital

 

Lead Authors

Conner Brown, MD
Hadassah University Hospital

Co-Authors

Amitay Lorber, MD
Hadassah University Hospital

Ofer N. Gofrit, PHD
Hadassah University Hospital

Mordechai Duvdevani, PHD
Hadassah University Hospital