Evaluation of a laryngotomy approach for near-total resection of the nasal septum in the horse.

Objective: To report a laryngotomy approach for the removal of the nasal septum in adult horses.

Study Design: Descriptive study.

Animals: Horses (n = 10).

Resection and anastomosis of the descending colon in 43 horses.

Objectives: To determine (1) the short- (to hospital discharge) and long- (>6 months) term survival, (2) factors associated with short-term survival, and (3) the perioperative course for horses with resection and anastomosis of the descending colon.

Study Design: Multicentered case series.

Animals: Horses (n=43) that had descending colon resection and anastomosis.

Indications for and short- and long-term outcome of permanent tracheostomy performed in standing horses: 82 cases (1995-2005).

Objective: To identify indications for and short- and long-term outcome of permanent tracheostomy performed in standing horses.

Design: Retrospective case series.

Animals: 82 horses undergoing permanent tracheostomy.

Outcome of medical and surgical treatment of cecal impaction in horses: 114 cases (1994-2004).

Objective: To determine short- and long-term outcomes, including recurrence rates, for horses with cecal impaction treated medically or surgically.

Design: Retrospective case series.

Animals: 114 horses.

Dietary risk factors and colonic pH and mineral concentrations in horses with enterolithiasis.

A prospective, unmatched case control study was performed to identify dietary and environmental risk factors for enterolithiasis in horses in California and to determine whether colonic ingesta analyses differed between horses with and without enteroliths. Forty-three horses with enterolithiasis were compared with 19 horses with surgical colic attributable to nonstrangulating obstruction of the colon without enteroliths. Colonic ingesta samples were collected at surgery from horses with enteroliths and control horses.

Expression of the ether-a-go-go (ERG) potassium channel in smooth muscle of the equine gastrointestinal tract and influence on activity of jejunal smooth muscle.

Objective: To determine whether ether-a-go-go (ERG) potassium channels are expressed in equine gastrointestinal smooth muscle, whether ERG channel antagonists affect jejunal muscle contraction in vitro, and whether plasma cisapride concentrations in horses administered treatment for postoperative ileus (POI) are consistent with ERG channels as drug targets.

Sample Population: Samples of intestinal smooth muscle obtained from 8 horses free of gastrointestinal tract disease and plasma samples obtained from 3 horses administered cisapride for treatment of POI.

Procedure: Membranes were prepared from the seromuscular layer of the duodenum, jejunum, ileum, cecum, large colon, and small colon.

Comparison of insertion time and pullout strength between self-tapping and non-self-tapping AO 4.5-mm cortical bone screws in adult equine third metacarpal bone.

Objective: To compare screw insertion characteristics and pullout mechanical properties between self-tapping (ST) and non-self-tapping (NST) AO 4.5-mm cortical bone screws in adult equine third metacarpal bone (MC3).

Study Design: In vitro biomechanical experiment.