Laparoscopic repair of complex ventral hernia facilitated by pre-operative chemical component relaxation using Botulinum Toxin A.

PURPOSE: The operative management of complex ventral hernia poses a formidable challenge, despite recent advances in surgical techniques. Recurrence rates after complex ventral hernia repair remain high, and increase with each failed attempt. This study examines the effect of pre-operative abdominal wall chemical component relaxation using Botulinum Toxin A (BTA) to induce temporary flaccid paralysis in order to facilitate laparoscopic repair of large complex ventral hernia. METHODS: This is a prospective evaluation of 27 patients from January 2013 to August 2015 who underwent ultrasound guided BTA injections to the lateral abdominal wall muscles prior to elective complex ventral hernia repair. Non-contrast serial CT imaging was obtained pre- and post-BTA injection to measure change in fascial defect size and abdominal wall muscle thickness and length. Fascial defects were closed and hernias repaired using laparoscopic or laparoscopic-assisted intra-peritoneal onlay mesh (IPOM) techniques. RESULTS: 27 patients received pre-operative BTA injections which were well tolerated with no complications. Comparison of pre-BTA and post-BTA CT imaging demonstrated a significant increase in mean length of the lateral abdominal wall from 15.7 cm pre-BTA to 19.9 cm post-BTA (p < 0.0001), with mean unstretched length gain of 4.2 cm/side (range 0-11.7 cm/side). All hernias were surgically reduced and repaired with mesh, with no early recurrences. CONCLUSION: Pre-operative administration of BTA is a safe and effective technique in the pre-operative preparation of patients undergoing elective complex ventral hernia repair. This technique lengthens and relaxes the laterally retracted abdominal muscles and enables laparoscopic closure of large complex ventral hernia.

Infestations and chronic infections in foreign pediatric patients with burns: is there a role for specific protocols?

Infestations by parasites such as Mycobacterium tuberculosis and other viral infections are common in third world countries. Consequently, the admission of a significant number of foreign patients to burn centers in the United States may pose new problems, not only for inpatients but also for health care workers. To document infestations in patients from third world countries and to determine the need for specific protocols, we studied 62 consecutive foreign patients admitted to our pediatric burn reconstruction service between July 1997 and December 1998. All patients were evaluated with chest X-ray, hemogram with differential count, clinical and laboratory nutritional assessment, and skin test for tuberculosis, and stool samples were evaluated for ova and parasites. No pathologic findings were seen on chest radiographs. Only 1 patient had a positive skin test for tuberculosis, as a result of previous bacille Calmette-Guérin vaccine. Yet, 10 patients (16%) had positive stool cultures for ova and parasites that contained 29 isolates. The most frequently identified organism was Blastocystis hominis. All amoebas identified were nonpathogenic according to Centers for Disease Control criteria. Ascaris lumbricoides and 1 case of cysticercosis were found. None of the patients with parasites had clinical manifestations of parasitosis or chronic infections. However, parasite infestations had a positive correlation with eosinophilia, altered nutritional status, and altered mean corpuscular hemoglobin concentration, as defined by multiple linear regression. Although foreign patients admitted to burn centers from third world countries have a low rate of infestations, patients at risk can be identified by laboratory findings and studies of nutritional status. Simple hand washing prevents the spread of disease and protects health providers.

Laparoscopic repair of abdominal hernias using an ePTFE patch--a modification of a previously described technique.

BACKGROUND: A variety of laparoscopic procedures for the repair of abdominal wall hernias have been described. The repair described in this paper represents a modification and improvement of one approach. METHODS: Our technique employs an Origin Tacker (Origin Medsystems, Inc, Menlo Park, CA) and a Gore suture passer (W. L. Gore, Flagstaff, AZ) to secure an expanded polytetrafluoroethylene (ePTFE) patch, (DualMesh, W. L. Gore, Flagstaff, AZ) to the anterior abdominal wall. RESULTS: This approach simplifies the repair by minimizing the number of steps required to secure the ePTFE graft to the anterior abdominal. CONCLUSIONS: We have found this to be a safe and reliable technique that may be used in the laparoscopic repair of ventral, umbilical, or inguinal hernias.