# Correlation between the incidence of inguinal hernia and risk factors after radical prostatic cancer surgery: a case control study

## TL;DR

This study finds that pelvic lymph node dissection during prostate cancer surgery increases the risk of inguinal hernia.

## Contribution

The study identifies pelvic lymph node dissection as a significant risk factor for inguinal hernia after prostate cancer surgery.

## Key findings

- The overall incidence of inguinal hernia after prostate cancer surgery was 14.7%.
- Pelvic lymph node dissection was found to be a significant risk factor for inguinal hernia (OR = 0.413, P = 0.02).
- The hernia rate was higher in the group receiving pelvic lymph node dissection compared to the control group.

## Abstract

The incidence of recurrent hernia after radical resection of prostate cancer is high, so this article discusses the incidence and risk factors of inguinal hernia after radical resection of prostate cancer.

This case control study was conducted in The First People’s Hospital of Huzhou clinical data of 251 cases underwent radical resection of prostate cancer in this hospital from March 2019 to May 2021 were retrospectively analyzed. According to the occurrence of inguinal hernia, the subjects were divided into study group and control group, and the clinical data of each group were statistically analyzed, Multivariate Logistic analysis was performed to find independent influencing factors for predicting the occurrence of inguinal hernia. The Kaplan-Meier survival curve was drawn according to the occurrence and time of inguinal hernia.

The overall incidence of inguinal hernia after prostate cancer surgery was 14.7% (37/251), and the mean time was 8.58 ± 4.12 months. The average time of inguinal hernia in patients who received lymph node dissection was 7.61 ± 4.05 (month), and that in patients who did not receive lymph node dissection was 9.16 ± 4.15 (month), and there was no significant difference between them (P > 0.05). There were no statistically significant differences in the incidence of inguinal hernia with age, BMI, hypertension, diabetes, PSA, previous abdominal operations and operative approach (P > 0.05), but there were statistically significant differences with surgical method and pelvic lymph node dissection (P < 0.05). The incidence of pelvic lymph node dissection in the inguinal hernia group was 24.3% (14/57), which was significantly higher than that in the control group 11.8% (23/194). Logistic regression analysis showed that pelvic lymph node dissection was a risk factor for inguinal hernia after prostate cancer surgery (OR = 0.413, 95%Cl: 0.196–0.869, P = 0.02). Kaplan-Meier survival curve showed that the rate of inguinal hernia in the group receiving pelvic lymph node dissection was significantly higher than that in the control group (P < 0.05).

Pelvic lymph node dissection is a risk factor for inguinal hernia after radical resection of prostate cancer.