Tracheal growth assessment in mongrel puppies (dogs) through multidetector CT.

The aim of this study was to describe the tracheal growth pattern and its zoometric relationship in related medium-sized mongrel puppies through adulthood. Fourteen puppies were studied. CT monitoring was performed monthly, starting in the 1st month of life through the 7th month and subsequently at the 9th and 12th months.

Bioabsorbable implant as a tracheal wall substitute in young developing canines.

This study evaluated a polylactic and polyglycolic acid (PLA/PGA) implant as a partial tracheal substitute in young developing canines. This experimental and longitudinal study included local stray pups that received substitution of a short cervical tracheal segment with a PLA 85%/PGA 15% plaque. We measured clinical, endoscopic, and tomographic variables for 1 year, at which time we performed histomorphological evaluations of the implant using light and electron microscopy.

[Experimental bacterial contamination of bile and liver in mongrel dogs: an alternative treatment with cephalone, a hybrid of cephalosporine fluoroquinolone].

Objectives: A longitudinal, randomized, single blind study was done to evaluate the efficacy of an antibacterial hybrid molecule (beta-lactamic-fluoroquinolone) named cephalone after biliary-enteric-bypass (BEB).

Material And Methods: Four groups of mongrel dogs were operated on three consecutive periods. Cultures of bile and liver were obtained and assessed, followed by obliteration of common bile duct and BEB to groups A, B and C.

Fibrocollagen-covered prosthesis for a noncircumferential segmental tracheal replacement.

Objective: Fibrocollagen-covered polyester meshes can be used as possible substitutions for tracheal segments if they become integrated into the tissue without complications. The aim of this study was to assess a fibrocollagen-covered polyester prosthesis to be used as a substitution for a tracheal segment.

Methods: We performed a blind, randomized experimental assay.

[Surgical/medical competences, self-perception among a group of students recently graduated].

Background: Medical professional proficiency comprises a set of skills, knowledge, and attitudes necessary to efficiently accomplish the practice of medicine. We undertook this study to identify the surgical/medical competencies (SMC) acquired by a group of students after graduating from the Faculty of Medicine, National Autonomous University of Mexico.

Methods: This was a cross-sectional, comparative, observational, and prospective study.

Effects of mesocaval shunt on the pharmacokinetics of metronidazole in young rats.

Prophylactic and therapeutic management of portosystemic encephalopathies is based on protein restriction in the diet, and the use of lactulose and antibiotics such as metronidazole. These actions intend to reduce the main source of intestinal ammonia production and release into the systemic circulation. The aim of this study was to evaluate the medium-term effects of mesocaval shunt on the pharmacokinetics of metronidazole in rats with healthy livers.

Video-assisted thoracoscopy for diaphragmatic plication: experimental study in a canine model.

Background: Plication of a nonfunctional hemidiaphragm usually restores altered ventilatory mechanics. This study compared two techniques in performing diaphragmatic plication: video-assisted thoracoscopy (group A) and thoracotomy (group B).

Materials And Methods: Twenty dogs with induced paralysis of the right hemidiaphragm were randomly assigned to one of the two groups.

[Publication profile (1991-2002) of a group of Mexican pediatric surgeons].

Introduction: This study was undertaken to determine the characteristics of scientific articles published by Mexican pediatric surgeons (MPS) available in the major electronic databases for international and national medical information.

Material And Methods: An observational, descriptive and transversal study was performed. Articles written by pediatric surgeons were localized in the most frequently accessed electronic searches: Medline, EMBASE, LILACS, and ARTEMISA, in the period from January 1991 to December 2002.

Esophageal anastomotic failure: an experimental study.

Background: Postsurgical complications in patients with esophageal atresia have remained unchanged during the last three decades. This study was aimed at investigating certain risk factors for small-sized esophageal anastomosis and to assess the probable relationship between esophageal length and body weight in rabbit.

Methods: Six groups of 10 adult rabbits were subjected to section or 1-cm segmental resection of thoracic esophagus followed by end-to-end anastomosis.