Comparison of histomorphometric characteristics of dorsal colon and pelvic flexure biopsy specimens obtained from horses with large colon volvulus that underwent resection.

Objective: To determine the degree of histomorphometric damage in dorsal colon and pelvic flexure biopsy specimens (DCBSs and PFBSs, respectively) obtained from horses with large colon volvulus (LCV) and assess the accuracy of predicting short-term outcome for those horses on the basis of DCBS or PFBS characteristics.

Animals: 18 horses with ≥ 360° LCV that underwent large colon resection.

Procedures: During surgery, biopsy specimens from the dorsal colon resection site and the pelvic flexure (when available) were collected from each horse.

Prognostic value of colonic and peripheral venous lactate measurements in horses with large colon volvulus.

Objective: To determine the prognostic value of (1) colonic venous lactate or peripheral lactate values obtained before and after manual correction of a large colon volvulus and (2) a combination of variables including pelvic flexure biopsy.

Study Design: Prospective clinical study.

Animals: Forty adult horses in which large colon volvulus was diagnosed intraoperatively.

Improvement in Bilateral Carpal Valgus Deviation in 9 Foals After Unilateral Distolateral Radial Periosteal Transection and Elevation.

Objectives: To evaluate the effect of periosteal transection and elevation in foals with naturally occurring carpal valgus deviation.

Study Design: Prospective clinical study.

Animals: Foals (n = 9) with bilateral carpal valgus.

Outcome of medial patellar ligament desmoplasty for treatment of intermittent upward fixation of the patella in 24 horses (2005-2012).

This retrospective study provides long-term results of medial patellar ligament (MPL) desmoplasty in horses with intermittent upward fixation of the patella (UFP) that were treated at a single referral hospital over a 7-year period. Follow-up interviews were conducted with owners, trainers, or referring veterinarians using a standardized questionnaire. Overall, 71% of horses returned to their intended use with only 18% at a higher level.

The influence of perfusate volume on antimicrobial concentration in synovial fluid following intravenous regional limb perfusion in the standing horse.

This study investigated the influence of perfusate volume on antimicrobial concentration in synovial fluid following intravenous regional limb perfusion (IVRLP) and assessed the efficacy of low volume IVRLP. The front limbs of 9 horses were randomly assigned to 1 of 3 volume groups: 10 mL (Group 1), 30 mL (Group 2), or 60 mL (Group 3). A tourniquet was applied distal to the carpus and the limbs were perfused with 500 mg genta-micin diluted to the assigned volume via a catheter placed in the lateral palmar digital vein at the level of the proximal sesamoid bones.

Tenosynoviotomy for sepsis of the digital flexor tendon sheath in 9 horses.

Objective: To describe a tenosynoviotomy technique for treatment of sepsis of the digital flexor tendon sheath (DFTS) in horses and report long-term outcome.

Study Design: Case series.

Animals: Horses (n = 9).

Use of a suprapatellar pouch portal and laparoscopic cannula for removal of debris or loose fragments following arthroscopy of the femoropatellar joint of 168 horses (245 joints).

Objective: To validate the safety of a suprapatellar pouch (SPP), approach to the femoropatellar joint (FPJ), and describe use of a laparoscopic cannula to remove debris or loose bodies.

Study Design: Retrospective case series

Animals: Horses (n = 168) with osteochondritis dissecans (OCD) of the FPJ.

Methods: Arthroscopy was performed on 245 FPJ with OCD.

Survival and complications after large colon resection and end-to-end anastomosis for strangulating large colon volvulus in seventy-three horses.

Objective: To report complications and survival after large colon resection and end-to-end anastomosis in horses with strangulating large colon volvulus.

Study Design: Retrospective case series.

Animals: Horses (n=73) with strangulating large colon volvulus.

Fertility and complications after fetotomy in 20 brood mares (2001-2006).

Objective: To report fertility (foals conceived, live foal births) of mares after partial fetotomy to resolve dystocia and complications associated with fetotomy.

Study Design: Retrospective study.

Animals: Horses (n=20).

Use of colonic luminal pressure to predict outcome after surgical treatment of strangulating large colon volvulus in horses.

Objective: To evaluate the relationship of colonic luminal pressure (CLP) measurements to outcome in horses with large colon volvulus (LCV) after either manual correction or large colon resection and anastomosis (LCRA).

Study Design: Retrospective study.

Animals: Horses (n=57) that had LCV.

Efficacy of omeprazole paste for prevention of recurrence of gastric ulcers in horses in race training.

Objective: To determine whether omeprazole oral paste administered at a dosage of 0.5 or 1 mg/kg (0.23 or 0.

Severe diaphragmatic necrosis in 4 horses with degenerative myopathy.

Severe diaphragmatic necrosis occurred in horses with degenerative myopathy due to polysaccharide storage myopathy (n = 2), nutritional myopathy (n = 1), and vasculitis (n = 1). Blood gas analysis performed in 1 horse indicated development of respiratory acidosis. Respiratory muscle necrosis can be severe in horses with degenerative myopathy and can lead to respiratory failure.