Objective—To develop a technique for
neodymium:yttrium-aluminum-garnet (Nd:YAG) laser
ventriculocordectomy in standing horses and document
healing in horses undergoing laser ventriculocordectomy.
Animals—6 horses between 2 and 32 years old.
Procedure—Under endoscopic guidance, the left
laryngeal ventricle was everted with grasping forceps
and excised with an Nd:YAG laser, using 60 watts of
power in a noncontact fashion (6,403 to 9,197
Joules). Following removal of the ventricle, the vocal
cord was photoablated. Horses were examined endoscopically
2, 7, 14, 21, 30, and 47 days after ventriculocordectomy,
and 1 horse was euthanatized on each
of these days. At necropsy, the larynx was removed
intact and examined grossly. Samples were collected
for histologic examination of the ventriculocordectomy
Results—Endoscopic examination revealed granulation
tissue by day 7, the start of epithelialization by day
21, and healing by day 47. At necropsy, 4 horses were
found to have a small amount of ventricular mucosa
remaining dorsally and 1 additional horse was found
to have a mucocele. Granulation tissue was identified
grossly and histologically in the horses euthanatized
between 7 and 30 days after surgery. Incipient reepithelialization
was evident histologically on day 14, and
complete reepithelialization of the surgery site was
evident by day 47.
Conclusion and Clinical Relevance—Results suggest
that ventriculocordectomy can safely be performed
with an Nd:YAG laser in standing horses. (Am
J Vet Res 2001;62:531–537)
Case Description—2 horses and 1 pony were evaluated for right-sided (1 horse and the pony) and left-sided (1 horse) acute epistaxis of 1 day's to 1 month's duration.
Clinical Findings—Endoscopic examination of the 3 equids revealed that the hemorrhage originated from the right maxillary artery in 2 equids and from the left internal carotid artery in the third. Mycosis of the auditory tube diverticulum (guttural pouch) was detected in all 3 equids.
Treatment and Outcome—All 3 equids underwent surgery, and transarterial nitinol intravascular plugs were placed to occlude affected blood vessels. All equids survived for a long period (ie, a minimum of 1 to 2 years) and returned to their previous use. All had complete regression of clinical signs of guttural pouch mycosis without additional medical treatment.
Clinical Relevance—The use of transarterial nitinol intravascular plugs appeared to be an effective alternative to other techniques for the treatment of epistaxis secondary to guttural pouch mycosis, including transarterial occlusion devices such as embolization coils.
Objective—To evaluate efficacy of debridement for
treatment of supraspinous bursitis in horses and to
evaluate the outcome.
Animals—10 horses with clinical signs of supraspinous
Procedure—Medical records were reviewed for signalment,
anamnesis, results of physical and radiographic
examination, microbial culture results of
supraspinous bursa tissue or exudate, Brucella abortustiters,
type of antimicrobial and anti-inflammatory
therapies, surgical technique, complications of the
surgical procedure, and findings on histologic examination
of excised nuchal ligament and bursal tissue.
Telephone follow-up with owners, trainers, or referring
veterinarians was performed.
Results—The described surgical technique was
effective in resolving drainage from the
supraspinous bursal region in 5 of 6 horses available
for long-term follow-up. The most common complication
following surgery was the development of
purulent wound drainage. Two horses required multiple
surgeries to resolve clinical signs of
supraspinous bursitis. The most common organism
isolated from the supraspinous bursa was β-
hemolytic Streptococcus spp. All horses were discharged
from the hospital and long-term follow-up
was available for 6 horses. All 6 horses could be
used for their intended use.
Conclusion and Clinical Relevance—Debridement
in standing horses is an effective method of resolving
clinical signs of supraspinous bursitis. (J Am Vet Med
A 13-year-old 128-kg miniature donkey gelding was evaluated for right forelimb lameness of 7 weeks’ duration.
Muscular atrophy of the infraspinatus and supraspinatus muscles over the right scapula with a palpable bony prominence over the point of the shoulder was evident. At the walk, the cranial phase of the stride was reduced with adduction of the distal aspect of the limb, dragging of the toe, and lameness (grade, 4/5). Lateral and craniocaudal radiographs of the right shoulder joint revealed lateral luxation of the humerus in relation to the scapula with bony proliferation and remodeling of the humeral head.
TREATMENT AND OUTCOME
Glenoid ostectomy was performed. Immediately after surgery, the donkey was able to intermittently stand squarely on the limb but maintained a reduced cranial phase of the stride at the walk. The donkey had no short-term complications and was discharged from the hospital 11 days after surgery. Following discharge, the donkey was confined to a box stall for 60 days, followed by a gradual increase in movement to full pasture turnout. The lameness continued to improve, and at 15 months after surgery the donkey was turned out in pasture and had mild lameness (grade, 3/5) at the trot. Mild muscular atrophy of the supraspinatus and infraspinatus muscles was present with no signs of pain on palpation or manipulation of the limb. Shoulder joint radiography at 15 months after surgery revealed remodeling of the glenoid cavity of the scapula and humeral head with formation of a pseudoarthrosis.
Glenoid ostectomy should be considered as an alternative to shoulder joint arthrodesis in small equids with shoulder joint luxation. Other indications for this procedure could include chronic osteoarthritis or fractures affecting the shoulder joint.
Objective—To evaluate the management of equids undergoing cryptorchidectomy at a referral hospital.
Design—Retrospective case series.
Animals—604 client-owned equids.
Procedures—Medical records of all equids undergoing surgical treatment of cryptorchidism from 1977 to 2010 were retrospectively reviewed. Analyses of breed, location of retained testes, accuracy of palpation per rectum for determining the location of retained testes, surgical technique, and postoperative complications were performed.
Results—The most frequently affected breed was the Quarter Horse (282/604 [47%]), which was significantly overrepresented. Of the 604 equids, 90 (15%) had undergone previous surgical attempts at castration. Preoperative palpation per rectum was performed in 395/604 (65.4%) patients, and was accurate in predicting the location of the retained testes in 354/395 (89.6%). Surgeons were significantly more likely to be incorrect in determining the location of the retained testis by means of palpation per rectum in patients that had undergone a prior attempt at castration. For equids with abdominal cryptorchidism (360/604 [59.6%]), the most common surgical technique was noninvasive cryptorchidectomy (298/360 [82.8%]). In unilateral cryptorchids (521/604 [86.3%]), the 2 most common sites were left abdominal (184/521 [35.3%]) and right inguinal (148/521 [28.4%]). For bilateral retention (80/604 [13.2%]), abdominal cryptorchidism was most common (48/80 [60%]). Fever was present in 138/324 (43%) equids on the first day after surgery. Postoperative fever was not significantly associated with any variables evaluated. Including postoperative (≤ 24 hours) fever, 150 of 604 (25%) patients developed postoperative complications. Excluding postoperative fever, 18 of 604 (3%) patients developed major postoperative complications; complications in 10 of 604 patients were deemed surgically related, and 3 of 604 patients died.
Conclusions and Clinical Relevance—Results indicated that cryptorchidectomy in equids performed with a variety of surgical approaches was associated with minimal postoperative complications. A history of previous attempts at castration decreased the ability to accurately predict the location of the retained testis.
Objective—To determine the outcome and subsequent
fertility of sheep and goats undergoing a
cesarean section because of dystocia.
Animals—85 sheep and 25 goats.
Procedure—Medical records were reviewed, and information
was obtained on signalment, history, physical
examination findings, anesthesia protocol, surgical technique,
number of lambs or kids delivered, pre- and postoperative
treatments, duration of hospitalization, and
postoperative complications. Follow-up information was
obtained through telephone conversations with owners.
Results—The proportion of sheep admitted to the
veterinary teaching hospital during the study period
that underwent a cesarean section (4.4%) was significantly
higher than the proportion of goats that did
(2.2%). Pygmy goats were overrepresented, compared
with the hospital population. The most common
reason for cesarean section was inadequate dilatation
of the cervix. The most common surgical approach
was via the left paralumbar fossa. Two hundred one
lambs and kids were delivered, of which 116 were
dead at delivery or died shortly afterward. Forty-two
of the 65 dams with 1 or more dead fetuses had been
in stage-2 labor for > 6 hours, and fetal death was significantly
associated with a prolonged duration of dystocia.
The most common complication following
surgery was retained placenta (n = 49). Use of antimicrobials
was associated with a lower rate of complications.
All 16 dams that were rebred became pregnant
and had no problems with dystocia.
Conclusions and Clinical Relevance—Results suggest
that cesarean section is an effective method of
resolving dystocia in sheep and goats and does not
adversely affect subsequent fertility. (J Am Vet Med
OBJECTIVE To evaluate reproductive performance and productive longevity of dairy cows treated for left displaced abomasum (LDA) with 1 of 2 surgical techniques (omentopexy vs pyloro-omentopexy).
DESIGN Retrospective case series.
ANIMALS 87 Holstein cows that underwent omentopexy or pyloro-omentopexy for LDA during a 5-year period.
PROCEDURES For each cow with LDA, the most recent date of calving, age at time of surgery, and surgical procedure were recorded. Dairy records of cows treated for LDA in the 5-year period were reviewed to determine their reproductive performance. Records available for up to 4 years after the last surgery (ie, when all treated cows had left the herd) were reviewed to determine cull dates and reasons for treated and untreated cows in the herd.
RESULTS Of the 87 cows with LDA, 58 underwent pyloro-omentopexy and 29 underwent omentopexy. Cows in the 2 treatment groups did not significantly differ in age. Fifty-six cows completed > 1 subsequent lactation cycle after surgery. The median time that cows with LDA remained in the herd was 566 days (range, 24 to 1,838 days); the times for the 2 treatment groups did not significantly differ. For treated and untreated cows, cull rates for reproductive failure or other problems were similar. Four (14%) omentopexy–treated cows and no pyloro-omentopexy–treated cows had a reoccurrence of LDA.
CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that cows with LDA that underwent omentopexy or pyloro-omentopexy had similar cull rates and reasons as unaffected herd mates over their productive time in the herd. Between the 2 treatment groups, only the LDA reoccurrence rate differed.