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The Learning curve for totally extraperitoneal laparoscopic inguinal hernia repair
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The Learning curve for totally extraperitoneal laparoscopic inguinal hernia repair
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The Learning curve for totally extraperitoneal laparoscopic inguinal hernia repair
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Journal Article
The Learning curve for totally extraperitoneal laparoscopic inguinal hernia repair
1996
Overview
Several laparoscopic techniques have been introduced to repair inguinal hernia, the newest and most promising being a totally extraperitoneal approach. Nevertheless, the surgeon may encounter several complications and technical difficulties associated with the transition from the conventional anterior operation.
In late 1993 and 1994, 120 patients were operated on for inguinal hernia using the totally extraperitoneal approach by four laparoscopic surgeons inexperienced in this new technique in a secondary referral setting. Their learning curve was assessed through operation time, perioperative and postoperative complications, and technical difficulties.
Median operative time decreased significantly (
P = 0.0003) when going through the learning curve. During the initial part of the learning curve, conversion to another technique was necessary in 10 (8%) cases, and in 6 of these cases, conversion was needed for a peritoneal tear (relative risk for conversion if peritoneal tear was present: 4.0; 95% confidence interval 1.2 to 13.1,
P = 0.025). The median operative time for Nyhus type Illb and IVb hernias was significantly longer than for other types (70 versus 55 minutes,
P = 0.003). Median postoperative stay was 2 days (range 0 to 7). There were 10 recurrences within 6 months due to technical or judgement errors.
For surgeons, the learning curve for totally extraperitoneal laparoscopic hernia repair can be overcome; however, the presence of an experienced surgeon during the procedure is vital, as this may prevent unnecessary recurrences.
