Ultrasound evaluation of the renal pelvis in cats with ureteral obstruction treated with a subcutaneous ureteral bypass: a retrospective study of 27 cases (2010-2015).

Objectives The objective of the study was to measure the preoperative and postoperative renal pelvic size and describe the ultrasound findings following successful decompression of a ureteral obstruction using the subcutaneous ureteral bypass (SUB) device in cats. Methods This retrospective study assessed the measurement of the renal pelvis of 27 cats with unilateral (n = 21) or bilateral (n = 6) ureteral obstruction before (pre-t) and after placement of a SUB during short- (before t) and long-term (after t) follow-up. Several qualitative ultrasound parameters were recorded for each cat.

Safety and correlation of test results of combined ultrasound-guided fine-needle aspiration and needle core biopsy of the canine spleen.

The safety and diagnostic value of combined splenic fine-needle aspiration (FNA) and needle core biopsy (NCB) is unknown. Forty-one dogs with splenic lesions were studied prospectively. Safety was assessed in 38 dogs and no complications were encountered.

Sonographic assessment of gallbladder volume in normal cats.

We quantified gallbladder volume in 30 clinically healthy, fasted, cats, using an ellipsoid formula. All cats had a complete blood count and serum chemistry profile performed. Fasting times before sonography ranged from 12 to 16 h.

Ultrasonographic assessment of long-term enterectomy sites in dogs.

Twenty-eight enterectomy sites from 28 dogs were evaluated sonographically 6 months postoperatively or later. The longest time between the enterectomy and sonography was nearly 7 years. The enterectomy site was visible sonograpically in 22/28 (78.

The sonographic appearance of intestinal mucosal fibrosis in cats.

The medical records of 11 cats with full-thickness intestinal biopsies and histopathologic confirmation of segmental mucosal fibrosis were reviewed. All cats received an abdominal ultrasonographic evaluation. The sonographic feature of a small intestinal mucosal hyperechoic band paralleling the submucosa was present in all cats.

Urinary bladder agenesis in an alpaca (Vicugna pacos) cria.

A 10-day-old female alpaca (Vicugna pacos) cria with a history of urinary straining and dribbling was presented for evaluation. The animal had markedly elevated blood fibrinogen (800 mg/dl), mildly elevated phosphorus (9.3 mg/dl), and minimally elevated blood urea nitrogen (38 mg/dl) concentrations.

Analysis of protein S-nitrosylation.

S-nitrosylation is the binding of an NO group to a cysteine or other thiol. Like phosphorylation, S-nitrosylation is a precisely targeted and rapidly reversible post-translational modification that serves as an on/off switch for protein function during cell signaling. However, unlike phosphorylation, S-nitrosylation of proteins occurs nonenzymatically and is mediated, at least in part, by redox-regulated chemical reactions in cells.