Publication

Is growth influencing diameter and function of laparoscopic TESA hepaticojejunostomy? A comparison of adult minipigs and juvenile domestic swine

Journal Paper/Review - Jan 1, 1998

Units
PubMed
Contact

Citation
Inderbitzin D, Schmid R, Hetzer F, Zucker K, Schöb O. Is growth influencing diameter and function of laparoscopic TESA hepaticojejunostomy? A comparison of adult minipigs and juvenile domestic swine. J Invest Surg 1998; 11:115-22.
Type
Journal Paper/Review (English)
Journal
J Invest Surg 1998; 11
Publication Date
Jan 1, 1998
Issn Print
0894-1939
Pages
115-22
Brief description/objective

Current treatment of obstructive jaundice includes endoscopic stenting and open surgical bypass. To combine the advantages of surgical bypass with the minimal invasive approach of endoscopic stenting we developed a laparoscopic technique, transient endoluminally stented anastomosis (TESA). As shown previously, small-diameter anastomoses (e.g., hepaticojejunostomy) by TESA technique can be performed reliably in growing domestic swine. This further preclinical trial was designed to exclude growth of the animals as the main reason for these excellent results. After ligation of the common bile duct, a laparoscopic Roux-en-y hepaticojejunostomy was performed 7 days later by TESA with a reabsorbable radiopaque polyglycolic acid stent. In group A (n = 7) growing domestic pigs and in group B (n = 5) adult minipigs were operated on. Laboratory parameters were controlled weekly. Stent degradation was followed by weekly abdominal x-ray. At necropsy 6 months after surgery, cholangiography was performed and the anastomoses were measured. Mean weight gain was 140.7 +/- 10.9 kg in domestic pigs versus 5.8 +/- 1.6 kg in minipigs. Cholestasis normalized within 7 days postoperatively. Duration of stenting was not significantly different between groups. Cholangiography at necropsy showed immediate runoff through the anastomoses in both groups. The diameter of the anastomosis was 4.7 +/- 0.5 mm in group A versus 3.0 +/- 0.4 mm in group B (p = 0.03). In conclusion, functionality of the small-diameter TESA hepaticojejunostomy is not related to age and growing factors in pigs, justifying its application in human as the next step of investigation.