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BACKGROUND: A bilateral oblique subcostal transverse abdominis plane block may help provide perioperative analgesia and reduce opioid use in patients undergoing sublay mesh hernia repair, but its clinical value is unclear. METHODS: In a single-centre, prospective, placebo-controlled, double-blind study, patients scheduled for sublay mesh hernia repair were randomized to receive oblique subcostal transverse abdominis plane blocks with either 60 ml of 0.375% ropivacaine (n=19) or isotonic saline (placebo, n=17). The primary outcome was patient-controlled total morphine consumption at 8:00 p.m. on the second postoperative day (POD), while secondary outcomes included the total morphine consumption during the post-anesthesia care unit stay and the occurrence of adverse events. RESULTS: Total morphine consumption at 8:00 p.m. on the second POD was higher in patients receiving ropivacaine (39 mg, IQR 22, 62) compared with placebo (24 mg, IQR 7, 39), p value = 0.04. In contrast, the ropivacaine group received 2 mg less morphine during the post-anesthesia care unit stay (4 mg, IQR: 4, 9 mg vs 2 mg, IQR: 2,6 mg, p = 0.04). Patients receiving ropivacaine used more morphine (8:00 p.m. on the first POD until 8:00 a.m. on the second POD: 8 mg, IQR: 4, 18 mg vs 2 mg, IQR: 0, 9 mg, p = 0.01) and reported higher maximum pain scores since the last assessment (8:00 a.m. on the second POD: 5, IQR: 4, 7 vs 4, IQR: 3, 5, p = 0.03). There were no differences in adverse events between groups. CONCLUSIONS: Bilateral oblique subcostal transverse abdominis plane blocks in patients undergoing sublay mesh hernia repair were not associated with a prolonged reduction in patient-controlled total morphine consumption in the evening of the second POD in this study. Rebound pain might explain the additional excess opioid required by the ropivacaine group.
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Introduction: To date, the guidelines for surgical repair of hiatal hernias do not contain any clear recommendations on the hiatoplasty technique with regard to the use of a mesh or to the type of fundoplication (Nissen vs. Toupet). This present 10-years analysis of data from the Herniamed Registry aims to investigate these questions. Methods: Data on 17,328 elective hiatal hernia repairs were entered into the Herniamed Registry between 01.01.2010 and 31.12.2019. 96.4% of all repairs were completed by laparoscopic technique. One-year follow-up was available for 11,280 of 13,859 (81.4%) patients operated during the years 2010-2018. The explorative Fisher's exact test was used for statistical calculation of significant differences with an alpha = 5%. Since the annual number of cases in the Herniamed Registry in the years 2010-2012 was still relatively low, to identify significant differences the years 2013 and 2019 were compared. Results: The use of mesh hiatoplasty for axial and recurrent hiatal hernias remained stable over the years from 2013 to 2019 at 20 and 45%, respectively. In the same period the use of mesh hiatoplasty for paraesophageal hiatal hernia slightly, but significantly, increased from 33.0 to 38.9%. The proportion of Nissen and Toupet fundoplications for axial hiatal hernia repair dropped from 90.2% in 2013 to 74.0% in 2019 in favor of "other techniques" at 20.9%. For the paraesophageal hiatal hernias (types II-IV) the proportion of Nissen and Toupet fundoplications was 68.1% in 2013 and 66.0% in 2019. The paraesophageal hiatal hernia repairs included a proportion of gastropexy procedures of 21.7% in 2013 and 18.7% in 2019. The recurrent hiatal hernia repairs also included a proportion of gastropexies 12.8% in 2013 and 15.1% in 2019, Nissen and Toupet fundoplications of 72.7 and 62.7%, respectively, and "other techniques" of 14.5 and 22.2%, respectively. No changes were seen in the postoperative complication and recurrence rates. Conclusion: Clear trends are seen in hiatal hernia repair. The use of meshes has only slightly increased in paraesophageal hiatal hernia repairs. The use of alternative techniques has resulted in a reduction in the use of the "classic" Nissen and Toupet fundoplication surgical techniques.
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It is unknown at present what the best method is among mesh implantation, central incision, reconstructing the deep inguinal ring, or a non-incised mesh implant in laparoscopic hernia surgery. Further, it is unproven to what extent a circular enclosure of the cremasteric structures by an incised mesh implant could cause postoperative complications and complaints. To evaluate the possible effects of different configurations and fixation techniques of mesh implants in transperitoneal repair of inguinal hernias, a randomized trial (phase IIIa study) was conducted to compare incised versus non-incised mesh and clip fixation versus suturing the mesh. A total of 360 male patients with unilateral primary hernias were randomized to 3 groups. Postoperative complaints were documented by means of a visual analog scale. These values showed no significant differences between study arms. At the first postoperative control, on day 3, patients after repair of Nyhus type II hernias had significantly fewer complaints than those after Nyhus type IIIa and IIIb repair. To gain additional facts, a duplex flow examination of testicular vessels was performed pre- and postoperatively. Testicular perfusion was not influenced by mesh configurations in the trial. There were no statistical differences in postoperative complications and recurrence rates between groups. In conclusion no influence on postoperative complaints and complications could be demonstrated by different mesh fashioning and fixation alternatives studied in this trial.