Abstract
OBJECTIVE
To evaluate the impact of daily gabapentin on behavior modification progression and signs of stress in fearful shelter cats from hoarding environments.
ANIMALS
37 cats (32 met inclusion criteria).
PROCEDURES
Healthy fearful cats were entered into group (1) gabapentin or (2) placebo upon intake. Both groups received daily behavior modification. Cats received 10 mg/kg of liquid gabapentin or placebo every 12 hours. Daily measures of cat stress score, latency to emerge from hiding, general in-shelter behavior, and urine suppression were collected. Results were analyzed on an intention-to-treat and per-protocol basis (including only cats that received > 75% of their doses). Post-adoption surveys assessed cat social behavior.
RESULTS
Of 32 fearful cats, 28 (87.5%) graduated from the behavior modification program in a median of 11 days (range, 4 to 51 days). Per-protocol analysis showed that gabapentin predicted quicker behavior modification progression and lower cat stress score, latency to emerge, and urine suppression compared to placebo. Median time to graduation was reduced by half with gabapentin. Intention-to-treat analysis showed that gabapentin predicted a lower cat stress score and latency to emerge. No differences were observed between groups for general in-shelter behavior. Among limited survey respondents (n = 7), despite showing unsocial behavior in the first week and among unfamiliar people, cats showed social behavior 1 year post-adoption.
CLINICAL RELEVANCE
Daily gabapentin was beneficial in behavior modification progress and reduced signs of stress in shelter cats. Fearful cats from hoarding environments can be successfully treated with behavior modification ± daily gabapentin within an animal shelter.
Abstract
OBJECTIVE
Complications of feeding tube placement are uncommon, but life-threatening pneumothorax has been reported in human and veterinary patients during feeding tube placement. This article describes the development of pneumothorax and the outcome associated with misplacement of nasogastric (NG) tubes in the tracheobronchial tree in 13 dogs.
ANIMALS
13 dogs being treated for various medical conditions that had NG tubes placed in 4 hospitals.
PROCEDURES
A review was carried out of the medical records of 13 dogs that developed pneumothorax after misplacement of NG tubes between 2017 and 2022.
RESULTS
14 dogs out of 4,777 (0.3%) developed pneumothorax as an adverse effect of NG tube misplacement in the tracheobronchial tree. One dog was excluded due to incomplete medical records. The feeding tube size ranged from 5F to 10F, and the most common tubes utilized were polyurethane tubes with flushing stylets. Nine out of 13 dogs developed evidence of respiratory compromise after the NG tube was placed. Eleven dogs required thoracocentesis, and 5 dogs had thoracostomy tubes placed. Five dogs suffered cardiopulmonary arrest after developing pneumothorax, with 3 of 5 undergoing cardiopulmonary resuscitation. Two out of 3 dogs that underwent cardiopulmonary resuscitation were discharged from the hospital. Five of 13 dogs were successfully discharged from the hospital, while 5 dogs died or were euthanized because of the pneumothorax.
CLINICAL RELEVANCE
Pneumothorax is a rare but potentially life-threatening complication of NG tube placement in dogs and may lead to death if not immediately addressed. Practitioners should be aware of this complication and be ready to perform thoracocentesis quickly if appropriate.
Abstract
OBJECTIVE
To compare the elution characteristics of amikacin-impregnated calcium sulfate (CaSO4) beads based on different drug concentrations and bead size configurations.
SAMPLE
Six groups of amikacin-impregnated CaSO4 beads and one negative control group.
PROCEDURES
Amikacin-impregnated CaSO4 beads were formed with either 500 mg (low-concentration) or 1 g (high-concentration) of amikacin per 15 g CaSO4 hemihydrate powder. The number of beads necessary to approximate 150 mg of amikacin for each of the 3 bead sizes (3 mm, 5 mm, and 7 mm) at both low and high concentrations were placed in 6 mL of phosphate-buffered saline. The saline was sampled at 14 time points over 28 days. Amikacin concentrations were determined using liquid chromatography-mass spectrometry.
RESULTS
Smaller beads reached higher mean peak concentrations than larger beads (P < .0006). Peak concentrations for the low- and high-concentration groups were 20.5 mg/mL and 27.4 mg/mL, 13.1 mg/mL and 14.0 mg/mL, and 8.85 mg/mL and 6.75 mg/mL for the 3 mm, 5 mm, and 7 mm beads, respectively. Bead size also affected the length of therapeutic duration, lasting 6 days for the 3 mm and 5 mm beads and 9 days for the 7 mm beads. However, this was only statistically evident among the high-concentration beads (P < .044). Antimicrobial concentration within the same bead sizes did not affect elution.
CLINICAL RELEVANCE
Amikacin-impregnated CaSO4 beads achieved extreme supratherapeutic eluent concentrations. While additional studies are needed, bead size significantly affected elution with smaller beads reaching higher peak concentrations and 7 mm, high-concentration beads demonstrating a longer therapeutic duration than smaller beads.
Abstract
OBJECTIVES
Evaluation of the strength of the novel suture technique by comparison with a 2-interrupted suture technique.
SAMPLE
40 equine larynges.
PROCEDURES
40 larynges were used; 16 laryngoplasties were performed using the currently accepted 2-suture technique and 16 using the novel suture technique. These specimens were subjected to a single cycle to failure. Eight specimens were used to compare the rima glottidis area achieved with 2 different techniques.
RESULTS
The mean force to failure, as well as the rima glottidis area of both constructs, were not significantly different. The cricoid width did not have a significant effect on the force to failure.
CLINICAL RELEVANCE
Our results suggest that both constructs are equally strong and can achieve a similar cross-sectional area of the rima glottidis. Laryngoplasty (“tie-back”) is currently the treatment of choice for horses with exercise intolerance due to recurrent laryngeal neuropathy. Failure to maintain the expected degree of arytenoid abduction post-surgery occurs in some horses. We believe this novel 2-loop pulley load-sharing suture technique can help achieve and, more importantly, maintain the desired degree of abduction during surgery.
