title: Study of the patency of different peritoneal drains used prophylactically in bariatric surgery.
abstract: OBJECTIVE
  To compare the performance of different types of abdominal drains used in bariatric surgery.
  
  
  METHODS
  A vertical banded Roux-en-Y gastric bypass was performed in 33 morbidly obese patients. Drainage of the peritoneal cavity was performed in each case using three different types of drain selected in a randomized manner: a latex tubular drain, a Watterman tubulolaminar drain, and a silicone channeled drain. Drain permeability, contamination of the drained fluid, ease of handling, and patient discomfort were evaluated postoperatively over a period of 7 d.
  
  
  RESULTS
  The patients with the silicone channeled drain had larger volumes of drainage compared to patients with tubular and tubulolaminar drains between the third and seventh postoperative days. In addition, a lower incidence of discomfort and of contamination with bacteria of a more pathogenic profile was observed in the patients with the silicone channeled drain.
  
  
  CONCLUSIONS
  The silicone channeled drain was more comfortable and had less chance of occlusion, which is important in the detection of delayed dehiscence.
authors.affiliation: Department of Surgery and Anatomy, Medical School of Ribeirão Preto, University of São Paulo, Rua Antônio Chiericato 760, Ribeirão Preto-SP, Brazil. wsalgado@fmrp.usp.br
authors.forename: Wilson
authors.initials: W
authors.lastname: Salgado Júnior
authors.forename: Marcelo Martins
authors.initials: MM
authors.lastname: Macedo Neto
authors.forename: José Sebastião
authors.initials: JS
authors.lastname: dos Santos
authors.forename: Ajith Kumar
authors.initials: AK
authors.lastname: Sakarankutty
authors.forename: Reginaldo
authors.initials: R
authors.lastname: Ceneviva
authors.forename: Orlando
authors.initials: O
authors.lastname: de Castro e Silva
mesh_terms: D000328:Adult; D001202:Ascitic Fluid / Q000382:microbiology; D004322:Drainage / Q000295:instrumentation*; D005260:Female; D015390:Gastric Bypass / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000601:surgery; D010529:Peritoneal Cavity / Q000601:surgery