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Postoperative hypoesthesia and pain: qualitative assessment after open and laparoscopic inguinal hernia repair

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Abstract

Background

Chronic pain is an important outcome variable after inguinal hernia repair that is generally not assessed by objective methods. The aim of this study was to objectively investigate chronic pain and hypoesthesia after inguinal hernia repair using three types of operation: open suture, open mesh, and laparoscopic.

Methods

A total of 96 patients were included in the study with a median follow-up of 4.7 years. Open suture repair was performed in 40 patients (group A), open mesh repair in 20 patients (group B), and laparoscopic repair in 36 patients (group C). Hypoesthesia and pain were assessed using von Frey monofilaments. Quality of life was investigated with Short Form 36.

Results

Pain occurring at least once a week was found in 7 (17.5%) patients of group A, in 5 (25%) patients of group B, and in 6 (16.6%) patients of group C. Area and intensity of hyposensibility were increased significantly after open nonmesh and mesh repair compared to those after laparoscopy (p = 0.01). Hyposensibility in patients who had laparoscopic hernia repair was significantly associated with postoperative pain (p = 0.03). Type of postoperative pain was somatic in 19 (61%), neuropathic in 9 (29%), and visceral in 3 (10%) patients without significant differences between the three groups.

Conclusions

The incidence of hypoesthesia in patients who had laparoscopic hernia repair is significantly lower than in those who had open hernia repair. Hypoesthesia after laparoscopic but not after open repair is significantly associated with postoperative pain. Von Frey monofilaments are important tools for the assessment of inguinal hypoesthesia and pain in patients who had inguinal hernia repair allowing quantitative and qualitative comparison between various surgical techniques.

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Acknowledgments

The authors thank Ramun Berger for the generation of a computer model to calculate and display measured data by von Frey monofilaments.

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Correspondence to Guido Beldi.

Additional information

This work was presented at the 10th World Congress of Endoscopic Surgery, Berlin, Germany, 13–16 September 2006

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Beldi, G., Haupt, N., Ipaktchi, R. et al. Postoperative hypoesthesia and pain: qualitative assessment after open and laparoscopic inguinal hernia repair. Surg Endosc 22, 129–133 (2008). https://doi.org/10.1007/s00464-007-9388-4

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  • DOI: https://doi.org/10.1007/s00464-007-9388-4

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