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Livaditis' circular myotomy does not decrease anastomotic leak rates and induces deleterious changes in anastomotic

U Tannuri1, W R Teodoro, S de Santana Witzel

  • 1Laboratory of Pediatric Surgery (LIM 30) and Division of Rheumatology (LIM 17), University of São Paulo Medical School, São Paulo, Brazil. uenis@waap.com.br

European Journal of Pediatric Surgery : Official Journal of Austrian Association of Pediatric Surgery ... [Et Al] = Zeitschrift Fur Kinderchirurgie
|September 19, 2003
PubMed
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This summary is machine-generated.

Livaditis myotomy did not reduce anastomotic leaks in esophageal atresia repair. This esophageal surgery also negatively impacted healing by thinning scars and reducing blood vessels, indicating it may be detrimental.

Area of Science:

  • Surgical Innovation
  • Gastroenterology
  • Experimental Surgery

Background:

  • Livaditis myotomy is a recognized technique for esophageal lengthening in long-gap esophageal atresia repair.
  • The procedure aims to reduce tension on anastomoses, potentially decreasing leak incidence.
  • Its effects on the healing process and tissue morphology require further investigation.

Purpose of the Study:

  • To evaluate if Livaditis myotomy reduces anastomotic leak rates in tension-induced esophageal repairs.
  • To determine the impact of myotomy on the morphological and biochemical characteristics of esophageal anastomosis healing.

Main Methods:

  • Sixty dogs underwent esophageal resection and high-tension anastomosis.
  • Experimental group received circular myotomy; control group did not.

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  • Post-operative evaluation included leak assessment, histology, histomorphometry, and collagen biochemical analysis.

    • Main Results:

    • Anastomotic leak rates were similar between the myotomy and control groups.
    • Myotomy resulted in thinner anastomotic scars with fewer new blood vessels.
    • Biochemical analysis showed reduced soluble collagen and type V collagen in myotomy scars.

    Conclusions:

    • Circular myotomy does not decrease the incidence of anastomotic leaks in this model.
    • The procedure induces deleterious changes in anastomotic healing, including reduced vascularity and altered collagen composition.
    • These findings suggest potential harm from routine use of myotomy in high-tension esophageal repairs.