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Safety of laparoscopic ventral hernia repair in octogenarians.

Background and Objectives: The recurrence rate after laparoscopic ventral hernia repair is lower than the rate of recurrence via the open approach in many series. Studies have demonstrated the safety and efficacy of this procedure but have had relatively young patient populations. We present our experience in a significantly older population. Methods: A retrospective chart review of all patients 80 to 89 years of age undergoing a laparoscopic ventral hernia repair at our institution from May 2000 to June 2007 was performed. Data collected included demographics, number and type of previous abdominal operations, number of previous hernia repairs, defect and mesh size, postoperative complications, and follow-up. Results: Twenty octogenarian patients underwent laparoscopic ventral hernia repair. Nine were men and 11 were women. The mean age was 82 years. Thirteen patients (65%) had one or more associated comorbidities at the time of surgery. Eighteen patients (90%) had undergone a mean of 1.7 prior abdominal operations. Six (30%) patients had undergone a mean of 1.1 previous open hernia repairs; 5 (83%) with mesh. Eight patients (40%) had an additional operative procedure at the time of laparoscopic hernia repair. Ten minor complications occurred in 10 patients (50%). Four major complications occurred in 4 patients (20%). One patient required reoperation for evacuation of hematoma at a trocar site. No patients complained of pain at a transabdominal suture site or persistent seromas by 6 weeks of follow-up. At mean follow-up of 3.1 months, no recurrences occurred and no patients required mesh removal in this series. No deaths occurred. Conclusion: Laparoscopic ventral hernia repair is becoming an accepted technique for hernia repair in the United States, with a well-documented low recurrence rate. Our series demonstrates that this approach is equally safe and effective for a significantly older segment of the population.


INTRODUCTION
Ventral hernia formation is one of the most common long-term complications of laparotomy, with a reported incidence of 3% to 20%. 1.2 Further, it is estimated that an additional 5% of the United States population has an umbilical or epigastric hernia. 3 It is therefore not surprising that approximately 90 000 ventral hernia repairs are performed annually. 4 Comparison studies have demonstrated the superiority of mesh repairs over primary closure, with reported recurrence rates of 11% to 21% and 25% to 52%, respectively. 5 Unfortunately, open mesh repair carries a significant complication rate of 14% to 50%, which is mainly attributed to wound complications. 6 Laparoscopic ventral hernia repair (LVHR) has dramatically improved in the last decade, with considerable improvements in recurrence, length of stay, and complication rates 7 compared with those in open repair with prosthetic mesh. 1,6,8 -10 Multiple studies have evaluated complication rates of LVHR based on variables like previous number of repairs, BMI, and the size of the defect. 6,7,11 However, only a paucity of studies have specifically looked at advanced age as a factor affecting outcomes and complications of LVHR, with the average age of most studies reported as 54 years (range, 46 to 59). 1,2,5 We are aware of only 3 studies that have patient populations with an average age over 60. [12][13][14] With ever-increasing life expectancy, surgeons are encountering increasing numbers of very elderly patients. Accordingly, the purpose of this study was to evaluate the short-term outcomes and safety after LVHR in the octogenarian population.

MATERIALS AND METHODS
A retrospective chart review of all patients 80 to 89 years of age undergoing a laparoscopic ventral hernia repair at our institution from May 2000 to June 2007 was per-formed. Data collected included patient demographics, number and type of previous abdominal operations, number of previous hernia repairs, defect and mesh size, postoperative complications, and follow-up. Our technique of repair is similar to that described by Heniford. 7 Postoperative complications were divided into minor (urinary retention, urinary tract infection, pneumonia/atelectasis, ileus longer than 4 days, wound infection, hematoma, clostridium difficile colitis, and cellulitis requiring antibiotics) and major (reoperation, cardiac, unrecognized bowel perforation, small-bowel obstruction, pulmonary embolism, pain duration Ͼ6 weeks, pain requiring injection, seroma duration Ͼ6 weeks, recurrence of hernia).

Postoperative Complications and Follow-up
The mean length of stay was 4.8 days (range, 0 to 9). Mean follow-up was 3 months (range, 2 to 1063 days). Complications are listed in Table 1. Ten minor complications occurred in 10 patients (50%). Four major complications occurred in 4 patients (20%). Of the minor complications, 5 (50%) were due to urinary retention. Of the major complications, 2 (50%) were cardiac, with one patient having atrial fibrillation and another having an anteroseptal myocardial infarction that was medically managed. One (5%) patient developed a small-bowel obstruction that resolved with nonoperative management. One (5%)

DISCUSSION
Ventral hernia formation is one of the most common long-term complications of laparotomy, with a reported incidence of 3% to 20%. 1,2 Simple closure is associated with high recurrence rates of nearly 50% as well as considerable morbidity. 13 The introduction of prosthetic mesh improved the recurrence rates of open repairs to 11% to 21%. 5 However, the complication rate remained high at 14% to 50%, 6 with the majority (12% to 24%) attributed to wound complications. 15 Heniford et al 7 published findings of an 850 patient cohort who underwent LVHR illustrating decreased wound-related complication and recurrence rates. Many other groups 6,8 -11,16 have published studies supporting their findings. To our knowledge, only a few studies focus on the elderly patient population, specifically with a patient age over 60 years (Table 2). In our study, all patients were age 80 or greater, and all had an ASA classification of 2 or 3.
Studies that compare open and laparoscopic techniques have consistently shown that LVHR has a lower complication rate mostly attributed to fewer local wound complications. Tessier et al 14 described a patient population undergoing LVHR with an average age of 68.5, with 76 patients over age 60, and 21 under age 60. Of their age group under 60, 6 minor complications (29%) and 1 major complication (4.8%) occurred in 21 patients. Of their age group over 60, 27 minor complications (36%) and 5 major complications (6.6%) occurred in 76 patients. This totaled a minor complication rate of 34% and a major complication rate of 6% for all age groups. The minor complication rate was slightly higher than that reported in other published series due to postoperative ileus and pulmonary complications. The major complication rate was equivalent to that in other series, which showed that LVHR performed in the elderly patient has essentially equal morbidity, mortality, and length of stay compared with LVHR performed in younger patients. Efficacy of repair was not one of their endpoints as their mean follow-up was only 3.6 months. Saber et al 17 also evaluated the safety of LVHR in this population. Their study compared 2 patient populations, one under 65 years of age (nϭ126), and one over 65 years of age (nϭ29). They found equal complication and recurrence rates in the 2 populations (mean follow-up of 8 months), concluding that individual patient condition and existing comorbidities should be the deciding factors in whether to perform LVHR and not the patient's age. In our cohort of 20 patients, we had a total of 10 minor complications (50%) and 4 major complications (20%). Table 2 compares our complication rates with rates from other studies we have referenced. No deaths occurred in our series.
Local wound complications are decreased with LVHR; however, seroma formation is an expected outcome in most patients. Seromas typically resolve within 6 weeks, and few are clinically significant. 7,12,14 Our practice is to only drain significantly symptomatic seromas. None of our patients had seromas that lasted over 6 weeks on clinical examination. Another well-documented problem is pain at suture and trocar sites, which occurs in up to 23% of patients. 18 This statistic has led to a debate as to whether transabdominal suture placement should be utilized, with some surgeons foregoing this step 19,20 and some insisting on its necessity to avoid recurrence. 7,21 All patients in our series had transabdominal sutures placed as part of their repair, but none had pain at trocar or transabdominal suture sites that lasted 6 weeks or necessitated injection of local anesthetic.

CONCLUSION
Our results add to the growing consensus that LVHR is a safe alternative to open repair regardless of age. LVHR is quickly becoming an accepted technique for hernia repair in the United States, with a well-documented decrease in recurrence rate reported in the literature in conglomerated age group categories. Long-term analysis of recurrence rates is necessary to evaluate the true effectiveness of LVHR in the elderly. However, our series demonstrates that this approach is safe and effective for a significantly older segment of the population.