Journal
SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
Volume 31, Issue 9, Pages 3656-3663Publisher
SPRINGER
DOI: 10.1007/s00464-016-5401-0
Keywords
Laparoscopic ventral hernia repair; Recurrence rate; Bridging technique; Predictive factors; Mesh/defect area ratio
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To assess the long-term incidence and predictive factors for recurrence after laparoscopic ventral hernia repair using a bridging technique. The study group consisted of 213 consecutive patients operated by laparoscopy for primary ventral (n = 158) or incisional hernia (n = 55) between 2001 and 2014. Patients had a repair without fascia closure by intra-peritoneal onlay placement of a Parietex(A (R)) composite mesh centred on the defect with an overlap of at least 3 cm. Clinical outcome was assessed by a combination of office consultation, patient's electronic medical file review and telephone interview. There were 144 men and 69 women with a mean age of 55 +/- 12 years and a BMI of 32 +/- 6. With a mean follow-up of 69 +/- 44 months, a recurrent hernia was noted in 16 patients (7.5%). Univariate analysis showed a statistically significant higher recurrence rate in the following conditions: incisional hernia (15%), BMI >= 35 (21%), defect width > 4 cm (27%), defect area > 20 cm(2) (27%), mesh overlap < 5 cm (32%) and ratio of mesh area to defect area (M/D ratio) <= 12 (48%). Multivariate logistic analysis revealed that M/D ratio was the only independent predictive factor for recurrence (coefficient -0.79, OR 0.46, p < 0.002). With a M/D ratio <= 8, between 9 and 12, between 13 and 16, and >= 17, the recurrence rate was, respectively, 70, 35, 9 and 0% (p < 0.001). In laparoscopic repair of ventral hernia using a bridging technique, an overlap of at least 5 cm is not all that is required to prevent hernia recurrence. The M/D ratio is the most important predictive factor for recurrence. A ratio of 13 appears as the threshold under which that technique cannot be recommended and 16 as the threshold over which the risk of recurrence is virtually nil. If a satisfactory M/D ratio cannot be achieved, other surgical repair should be proposed to the patient.
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