Ovariohysterectomy Procedure Research Articles

Ectopic adrenal tissue in a cat that underwent an ovariohysterectomy.

To describe the use of ultrasound and adrenal function testing to confirm that excised periovarian tissue is normal ectopic adrenal tissue (EAT). A 6-month-old female domestic shorthair cat. The cat underwent an ovariohysterectomy procedure, during which abnormal tissue was discovered adjacent to both ovaries. The tissue was removed during the ovariohysterectomy and submitted for histopathology, which was consistent with adrenal gland tissue, initially raising concern for an inadvertent adrenalectomy. Abdominal ultrasound and an adrenal function test were performed that confirmed normal adrenal structure and function; thus, the removed structure was diagnosed as EAT. The patient continued to recover from the procedure uneventfully at home. Parovarian nodules are an uncommon finding but when observed and biopsied, may be mistaken for physiologic adrenal tissue on the basis of histopathologic features alone without awareness of their existence and clinical context. The use of abdominal ultrasound and ACTH stimulation test offers an affirmative method of differentiating adrenal gland tissue from EAT.

Bupivacaine, Ketamine And Bupivacaine – Ketamine Epidural Anaesthesia In Bitches Undergoing Ovariohysterectomy

This research was conducted to analyze the analgesic effects of bupivacaine, ketamine and bupivacaine–ketamine combination on bitches undergoing ovariohysterectomy, and determine a suitable regional anaesthesia. Fifteen (15) apparently healthy bitches, aged 8-12 months and weighing 10 – 15kg were procured within and around Zaria, Kaduna State for this experiment. The animals were grouped into three (3), A, B and C, screened and allowed to acclimatize to the new environment. Premedication was instituted with 0.02 mg/kg atropine sulphate and 1mg/kg Xylazine. Group A was administered an epidural injection of 0.5 % bupivacaine hydrochloride at 1 mg/kg, Group B was administered an epidural injection of 50 mg/ml ketamine hydrochloride at 2 mg/kg and Group C was administered an epidural injection of bupivacaine and ketamine combination at 0.5mg/kg and 1 mg/kg respectively. Analgesic indices determined were time to sphincter relaxation, the onset of action, duration of analgesia and duration of muscle relaxation. A standard ovariohysterectomy procedure was carried out at the onset of analgesia on each experimental animal, lasting an average of 45 minutes. Bitches in the bupivacaine group took a longer time (73 ± 18.0 secs) to sphincter relaxation which was significantly different from the other groups. Ketamine took the shortest amount of time (15 ± 3.0 secs) which was almost immediate. The onset of analgesia was the shortest (3 ± 1.0 mins) in group B with ketamine only. The combination of ketamine and bupivacaine produced a longer duration (121 ± 7.0 mins) of analgesia and significant muscle relaxation (110 ± 20.0 mins). The combination of bupivacaine and ketamine produced superior analgesic effects than those of bupivacaine or ketamine alone used for epidural injection, and sufficient for painful surgeries such as ovariohysterectomy in dogs.

Elective Ovariohysterectomy in Paraguayan Hairy Dwarf Porcupine (Coendou spinosus) Using the Transversus Abdominis Plane Block-Case Report

Wild mammal orphans are challenging cases in rehabilitation centers since, usually, as a result of artificial care an emotional bond is created due to human-animal interaction. In these cases, in which reintroduction to the wild is not possible, the animals need to be sent to zoos, breeding sites or fauna holding facilities. This report describes an elective ovariohysterectomy (OVH) procedure in an adult female hairy dwarf porcupine (Coendou spinosus), kept in a zoo in southern Brazil. The aim of the procedure, besides reproductive control, was to reduce hormonal changes that were leading to bad and confrontational behavior of the female animal with others of the same species, therefore seeking to improve the well-being of the animals. For the anesthetic protocol, the pre-anesthetic medication consisted of midazolam (0.5 mg/kg, IM), ketamine (10 mg/kg, IM) and tramadol (2 mg/kg, IM). As maintenance of the anesthesia, isoflurane was utilized. As local anesthesia, a transversus abdominis plane block (TAP Block) was performed to improve analgesia. No complications were seen during or after the procedure. Elective OVH proved to be feasible in C. spinosus, as did the TAP Block technique, emphasizing the importance of having a technically qualified team for better outcome.

Effects of medetomidine/ketamine and xylazine/ketamine anesthesia and their reversal by atipamezole on ocular parameters and monitored anesthesia care in cats

The aim of this study was to investigate the impact of the general anesthetic drug ketamine and premedication agents medetomidine and xylazine, and their reversal by atipamezole, on monitored anesthesia care values and ocular parameters such as intraocular pressure, horizontal pupillar diameter, and Schirmer tear test in cats. A randomized, single-blinded study was conducted. Twenty intact female cats (weiging between 2.2 and 3.6 kg, and 0.5 to 5.5 years of age) referred for ovariohysterectomy (OHE) procedure by the owners at regular intervals over 4 months were included in the study. The cats were randomly divided into two groups containing 10 animals in each group. The cats were premedicated with medetomidine 80 µg/kg intramuscular in group 1 while the cats in the 2nd group were premedicated with xylazine hydrochloride 2 mg/kg intramuscular. After the OHE procedure was ended, anesthesia regimes were reversed by using atipamezole 200 µg/kg intramuscularly. Monitoring of respiration rate, heart rate, mean arterial pressure, peripheral arterial oxygen saturation, and body temperature were conducted using a patient monitor at T0, T1, T2, T3, and T4 time points. Both groups showed declines in intraocular pressure and increases in horizontal pupil diameter after anesthesia induction (T0 vs. T1, all, P<0.05); however, the chancing and recovery pattern of intraocular pressure and horizontal pupil diameter showed intergroup difference. In conclusion, xylazine/ketamine is more effective than medetomidine/ketamine in attenuating the intraocular pressure, increasing the horizontal pupil diameter, and alteration the monitored anesthesia care response in the general anesthesia.

Cystic Endometrial Hyperplasia in a Domestic Rabbit (Oryctolagus cuniculus domesticus)

Background: Cystic endometrial hyperplasia is a hormone-dependent disease induced by systemic increase in progesterone that can occur in several domestic species, such as the rabbit. This disease may be associated with sex steroid hormones, especially progesterone, and may be asymptomatic, and it is diagnosed using complementary imaging tests such as total abdominal ultrasound. However, surgical excisional biopsy with histopathological tissue analysis is the gold standard. This study reports a case of asymptomatic cystic endometrial hyperplasia in a female Miniature Lion Lop rabbit (Oryctolagus cuniculus domesticus) treated with therapeutic ovariohysterectomy.Case: A domestic, adult, female Miniature Lion Lop rabbit (Oryctolagus cuniculus domesticus), aged approximately 5 years and weighing 3.2 kg, was referred to specialized care to undergo ovariohysterectomy, an elective procedure. The tutor only reported the occurrence of a single episode of vulvar secretion more than 2 years ago, treated with antibiotics, with remission of clinical signs. In the intraoperative period after celiotomy, the uterine horn and uterine body showed a significant increase in volume, with abnormal color changes and tissue consistency; however, both changes were clinically asymptomatic. Subsequently, biopsy was performed during the ovariohysterectomy procedure. The excised uterus and ovaries were placed in 10% formalin and histopathologically analyzed. The macroscopic histopathological examination of the sectioned tissue revealed a slight amount of brownish fluid inside the uterine horns, in addition to multiple cystic areas in the uterine mucosa. Microscopic examination revealed marked hyperplasia of well-differentiated endometrial epithelial cells, occasionally forming cystic structures of different sizes. Moderate congestion, mild multifocal hemorrhage, and mild multifocal inflammatory infiltrate in the lamina comprising lymphocytes and plasma cells were also observed. Therefore, a diagnosis of cystic endometrial hyperplasia with mild lymphoplasmacytic endometritis was made. Observation of the patient was recommended without therapeutic indication.Discussion: Although the pathogenesis of cystic endometrial hyperplasia remains unknown, it is suggested that it is associated with the presence of sex steroids. Hence, this is a common disease in female rabbits, as they have non-seasonal polyestrous cycles and induced ovulation. Cystic endometrial hyperplasia may be asymptomatic or subclinical, without any significant clinical signs. Conversely, when associated with an infection such as pyometritis, the clinical signs include intermittent hematuria, anemia, lethargy, anorexia, and tenderness in the uterus on palpation. Although diagnosis can be made using total abdominal ultrasound and radiography, it can only be confirmed by the histopathological evaluation of the biopsied uterine tissue. Histopathological features of this disease include endometrial thickening with irregular glandular cystic elevations and hyperplasia of the pseudostratified cylindrical ciliated cells of the uterine glands. Furthermore, lymphoplasmacytic infiltrate is found in the uterine tissue, demonstrating an inflammatory reaction or bacterial infection concomitant with endometrial hyperplasia. In this case, the treatment of choice was therapeutic ovariohysterectomy, which is considered curative in this disease. Thus, ovariohysterectomy can resolve cystic endometrial hyperplasia in a domestic female Miniature Lion Lop rabbit.Keywords: surgery, ovariohysterectomy, rabbits, wildlife.Título: Hiperplasia endometrial cística em coelho-doméstico (Oryctolagus cuniculus domesticus)Descritores: cirurgia, ovariosalpingohisterectomia, coelhos, animais selvagens.

Регенеративный препарат Репарин- Хелпер® как эффективное и безопасное средство для лечения постоперационных ран

This article describes clinical results from postoperative wound treatment in 41 dogs that have undergone an ovariohysterectomy procedure. The standard treatment regimen is compared with the use of a regenerative drug based on secretome (cytokines / growth factors) produced by mesenchymal stem cells. The results show that the regenerative drug positively impacted the wound healing speed, decreased the suture removal time, and effectively reduced inflammation during the post-operative period, resulting in a rapid and high-quality postoperative recovery.

Acquired Skin Fragility Syndrome in a Juvenile Cat Following a Routine Ovariohysterectomy

Background: Acquired skin fragility syndrome (ASFS) is a rare condition, which is characterized by spontaneous fragility of the skin and an absence of hyperextensibility. Even though the real pathogenesis of ASFS remains unknown that is reported generally with some iatrogenic causes and severe diseases. Thus, based on the clinical findings this is the first report of describes the case and treatment of feline acquired skin fragility syndrome following a routine ovariohysterectomy.Case: An 8-month-old domestic shorthair female cat was brought to the Siirt University Animal Health Application and Research Center for ovariohysterectomy operation. Before the operation physical examination of the animal revealed body temperature, heart rate, respiratory rate, the color of mucosas, and lymph nodes were determined normally. Besides, there is no hematological and biochemical problem detected. The cat had no previous history of several infections or systemic disease. A routine ovariohysterectomy procedure was applied under general anesthesia and the cat was discharged on the same day. Three days after that a spontaneously developed cutaneous laceration below the left scapular region was determined by the cat owner. During the clinical examination, it was determined that the cat was sensitive to touch against the left scapular area. Multiple spontaneous skin tear was revealed over the left scapular region while shaving for better inspection but did not obtain any problem with incision line. To identify the underlying cause of skin tearing, hematological and biochemical tests were done but the animal’s results were found within the normal references. Also, rapid blood tests were performed for feline leukemia virus and immunodeficiency virus, and none of them were positive. Additionally, the skin was not hyperextensible. Although the clinicopathological abnormalities were observed on the skin, there were no abnormalities in the vital signs of the cat. Based on the clinical status of the cat, daily regular wound cleaning and a wet-to-dry bandage were applied for two weeks. Skin therapy based on the use of dexpanthenol, vitamin E, and vitamin C with zinc was preferred to improve skin health. All lesions on the skin of the cat completely recovered and a follow-up visit for several weeks was recommended to the cat owner.Discussion: There have been reports that acquired skin fragility syndrome may be related to hepatic diseases, some feline viral infections, hyperadrenocorticism, or use of a long time progestational drugs. Also, acquired skin fragility syndrome can be seen in a congenital disorder known as cutaneous asthenia which is described generally in young cats. Cutaneous asthenia and acquired skin fragility syndrome are difficult to distinguish from each other even though histological examination was made. Although the cat in this report is young, there was no history of skin problems and skin hyperextensible until presentation. No specific treatment protocol described for this skin problem has been reported. Moreover, vitamins and minerals may be used for wound treatment and strengthening the skin. Ovariohysterectomy is the most common surgical technique used for sterilization of cats however; it can cause some complications, such as acute stress. Unfortunately, the exact etiology is not detected in this case report but it is thought to be that stress of ovariohysterectomy might be triggered to spontaneous skin tearing.

Intra and postoperative effectives of oral transmucosal administration of phenylbutazone for pain managament in dogs

The aim of the present study was to evaluate the efficacy and analgesic duration of single dose of phenylbutazone administered by oral transmukosal route immediately before induction of anesthesia in dogs undergoing elective ovariohysterectomy. Eight-teen sexually intact female dogs (weiging between 5 and 30 kg, and 1 to 7 yrs of age) referred for ovariohysterectomy procedure from a local shelter at regular intervals over 3 months were included in the study. The dogs were administered phenylbutazone on the basis of their respective treatment group (20 mg/kg via oral transmucosal administration) immediately before anesthetic induction. The syringe was placed in the cheek pouch of the dog, and phenylbutazone was slowly administered over a period of 1 to 3 minutes to ensure the drug did not drip out of the dog’s mouth, or was not swallowed by the dog. In control group, 0.9% NaCl was administered in the cheek pouch of the dog. Throughout the study, pre and postoperative pain was assessed at baseline (before induction of anesthesia) and then at 0.5, 1, 2, 3, 8, and 24 hrs after the surgery. Group oral transmucosal had significantly lower Glascow pain scores than the control group at the 0.5, 1, 2, 3, and 8 hour postoperative periods. In conclusion, a single dose of phenylbutazone administered via the oral transmucosal route before surgery may be particularly beneficial for acheiving reasonable perioperative analgesia, but not in postoperative period.

Effects of a diet enriched with eicosapentaenoic, docosahexaenoic and glutamine on cytokines as immunological markers for systemic inflammation in bitches before and after ovariohysterectomy.

The post-operative period can generate immunological stress and can be modulated through supplementation with the omega-3 series of polyunsaturated fatty acids. This study aimed to evaluate the effects of diets enriched with high doses of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids and glutamine on inflammatory mediators in dogs before and after ovariohysterectomy (OVH). Twelve female dogs were divided into two groups: group A was fed a commercial diet without the addition of EPA and DHA, and group B was fed an experimental diet enriched with EPA and DHA (0.2g/100kcal). Experimental diet intake initiated 21days before surgery and continued until 30days after OVH. Parameters measured were serum cytokines (TNF-α, IL-6 and IL-10), C-reactive protein (CRP), IGF-1, lymphoproliferation and body composition before and after surgery. Statistical analyses were performed with SAS software considering the effects of age and diet and their interactions, and means were compared by the Tukey test. There was no difference between groups in body weight (p=.682), lean mass (p=.101) and body fat (p=.103). There were no group differences in serum concentrations of TNF-α, IL-6, IL-10, IGF-1, CRP and the percentage of lymphocyte proliferation. However, a time effect for TNF-α was observed (p<.001), in which T0P (10days after the surgical procedure) presented lower values of this cytokine when compared to the other evaluation time points; and interaction effects between group and time were observed for serum concentrations of IL-6 (p<.001) and IL-10 (p=.002). OVH procedure was not considered invasive enough to increase inflammatory cytokines after 30 days of surgery, as well as the dosage of the EPA and DHA used before and after the surgery did not modulate the inflammatory markers.

Use of subcutaneous ureteral bypass systems as a bridge to definitive ureteral repair in a cat with bilateral ureteral ligation secondary to complicated ovariohysterectomy

A kitten presented with acute kidney injury, bilateral hydronephrosis and proximal hydroureter, three days following bilateral ureteral ligation, during a complicated ovariohysterectomy procedure. Clinical signs were anorexia, lethargy, weakness, hypothermia,...

Effect of Neosaxitoxin on Epidural Anesthesia in Cats: a Promising Alternative to Conventional Anesthetics

Neosaxitoxin (NeoSTX) is a specific high-affinity inhibitor of voltage-dependent sodium channels, which has shown excellent results as a local anesthetic in various pathologies and post-operative protocols, since it effect is long-lasting and have virtually no side effects.The aim of this study was to analyze the effect of NeoSTX as an epidural anesthetic in female cats, undergoing ovariohysterectomy, compared to Lidocaine in a randomized and double-blind study. Two groups of 11 female cats were randomly in the NeoSTX group and the lidocaine group. They were administered, respectively, a single dose of NeoSTX (0.5 μg / kg) or lidocaine (4 mg / kg, 2%) by epidural via. Using the UNESP-Botucatu pain assessment scale, which considers multiple behavioral and physiological factors, the epidural anesthetic effect of NeoSTX and lidocaine was evaluated, up to 240 min after the ovariohysterectomy procedure. NeoSTX no altered the peripheral blood pressure during the cut of uterine cervix, and generated lower values on the pain scale as compared to the lidocaine treatment. None of the cats anesthetized with NeoSTX required an extra dose of pain-relieving drugs (2 mg / kg of tramadol) during the first 150 min after surgery, whereas nine cats from the lidocaine group did need an extra dose of analgesic. NeoSTX is a powerful pain blocker, with a long-lasting anesthetic effect when administered by an epidural procedure. Therefore, NeoSTX emerges as a promising alternative to conventional anesthetics for the treatment of postoperative pain.

Peripheral perfusion index does not accurately reflect hypoperfusion in healthy dogs undergoing elective ovariohysterectomy

This study evaluated the variability of the peripheral perfusion index (PI) in 22 anaesthetised female dogs undergoing elective ovariohysterectomy and examined the relationship between peripheral PI and heart rate, blood pressure, blood pH, end tidal CO2 (EtCO2), O2 saturation (SpO2), core-peripheral temperature gradient (ΔTc-p), partial pressure of CO2 (PCO2), and concentrations of glucose, cortisol, lactate and bicarbonate (HCO3−). Blood pH, lactate and glucose concentrations were determined 15, 30, 45min into the ovariohysterectomy procedure and after extubation. Cortisol concentrations were assessed before anaesthesia and after extubation. Other variables were recorded at every 5min throughout the ovariohysterectomy procedure. Hyperglycaemia was observed in 59% of bitches during surgery, but serum cortisol concentrations remained unchanged. Most measures of perfusion (ΔTc-p, pH, PCO2, EtCO2, SpO2) and heart rate remained unchanged throughout anaesthesia and did not correlate with peripheral PI. Mean arterial pressure increased during the ovariohysterectomy procedure, while peripheral PI decreased, resulting in negative correlations between these variables at 30 and 45min. Lactate concentrations decreased from baseline to the time of measurement post-extubation. Peripheral PI gradually decreased during the ovariohysterectomy procedure, probably reflecting vasoconstriction induced by nociceptive stimuli. Using lactate concentrations as the reference standard for peripheral perfusion, low peripheral PI in healthy bitches undergoing ovariohysterectomy might not represent peripheral hypoperfusion.

Hemangiosarcoma Associated with Polypropylene Suture in a Cat

Background: Sutures plays an important role in wound repair by providing hemostasis and support for healing suture. Synthetic non-absorbable like polypropylene suture materials induce minimal tissue reaction. Polypropylene has not been associated to neoplasms in domestic animals. The aim this study is to describe the first case of polypropylene suture induced hemangiosarcoma in an abdominal wall of a feline.Case: A 13-year-old female domestic shorthair cat was presented with a ventral abdominal subcutaneous mass. Clinical examination revealed a firm, rough, and irregular, approximately 6 x 4 cm subcutaneous mass involving the caudal ventral abdomen. A complete blood (cell) count (CBC) was within normal limits. Leukemia and FIV tests were negative; andthe results of a chemistry panel revealed elevated creatinine (valor: 2.0 reference range: 0.5-1.9). Abdominal ultrasound revealed a large mass of mixed echogenicity in the mid-ventral abdomen cranial to the bladder, measuring approximately 6 x 4 cm in the middle line with suture deeply embedded within mass suggesting foreign body reaction or neoplasm. There was evidence of sutures (hyperechoic lines) along the caudal abdominal wall extending into the mass. Records indicated that ovariohysterectomy procedure was performed 12 years previously at the same clinic and the closure of the abdominal wall was made with polypropylene sutures. No other abdominal surgery was performed in this cat. A fine-needle aspirate of the mass and contrast-enhanced computed tomography was not performed due to owner’s finance restrains. The catwas referred to surgery and the mass was excised. No evidence of metastasis was noted during surgery. Histologically, the neoplastic cells were oval to round with granular cytoplasm and vesicular nucleus and exhibited moderate cellular and nuclear pleomorphism. A diagnosis of abdominal wall hemangiosarcoma was made with suture deeply embedded within mass. Surgical margins were clear. Chemotherapy was indicated, but the owner declined due to financial reasons. This is the first polypropylene suture mass associated hemangiosarcoma in cats.Discussion: Hemangiosarcoma is a malignant neoplasm of vascular endothelial cells origin and it may be associated with chronic inflammation and neoplastic transformation. It was reported in previous studies, and it could be a hypothesis for the presented clinical case. There are two cases described in the literature of abdominal wall tumor associated with foreignbody and exuberant inflammatory response in cats using different types of suture; one case is a steel staple developing hemangiosarcoma and the other is polyester sutures developed fibrosarcoma. The present study shows a primary hemangiosarcoma diagnosed several years after closure of abdominal wall using polypropylene sutures in a female cat. Polypropylene is a monofilament suture that create less tissue-drag and induces less inflammation than multifilament sutures and is the preferred suture to close abdominal wall. Cats demonstrate a peculiar predisposition to neoplasms at the site of injury. Although the pathogenesis is still unclear, the introduction a “foreign body” may cause inflammatory process that act as a stimulus to neoplasia formation. We believe that polypropylene was the foreign material that may have played arole in tumor development in this case and it has not been reported before. Polypropylene sutures were found on gross examination of excised material. Any uncoated braided non-absorbable material located deeply in tissues may evoke a chronic inflammatory response (granuloma). A granuloma may evolve to malignancy in some cats. Despite polypropylenematerials induce minimal tissue reaction, it may be associated to neoplasm.Keywords: polypropylene suture, hemangiosarcoma, cat, tumor induced by foreign body.

SINGLE PORT LAPAROSCOPIC-ASSISTED OVARIOHYSTERECTOMY IN 3 RABBITS

Single incision laparoscopic surgery (SILS) involves only a single 2-3cm incision in the ventral midline of the patient with entry of the port, particularly the foam SILS Port multiple access port. This type of minimally invasive surgery using only 1 port and a controlled Hasson approach provides decreased risk of iatrogenic abdominal viscera penetration. This SILS Port (Covidien, Medtronic, Minneapolis, MN) also allows easy transition of instruments, telescope, and bipolar electrocautery devices amongst the 3 built-in cannulae for ideal triangulation for each side of the patient. In these 3 cases, the body wall incision length was reduced as compared to an open technique, involved fewer incisions as compared to a multiple port access technique, and subjectively proposed less risk to the cecum with the foam port. The median surgery time was 50 minutes (45-55 minutes), and no intraoperative or immediate postoperative complications were encountered in this series. The purpose of this clinical technique article is to describe and illustrate the laparoscopic-assisted ovariohysterectomy procedure via SILS for the domestic rabbit.

Development of an effective iBook to educate veterinary students about the ovariohysterectomy procedure on small animals

Development of an effective iBook to educate veterinary students about the ovariohysterectomy procedure on small animals

Technical note: A new surgical technique for ovariohysterectomy during early pregnancy in beef heifers.

We hypothesized that a standing flank ovariohysterectomy procedure could be developed in beef heifers that would provide high quality tissues for addressing critical questions during early pregnancy, while concomitantly keeping livestock stewardship a high priority. To test the hypothesis, we: 1) developed a standing flank ovariohysterectomy procedure for use in beef heifers, and 2) implemented this procedure in a cohort of heifers up to d 50 of pregnancy for tissue collections, documentation of post-surgical recovery, and assessment of feedlot finishing performance. Ovariectomy and cesarean section protocols are well established in research and veterinary medicine and were used as starting points for procedural development. Crossbred Angus heifers ( = 46; ∼ 15 mo of age; BW = 362.3 ± 34.7 kg) were used to develop this new surgical tissue collection technique. Heifers were subjected to the 5-d CO-Synch + CIDR estrous synchronization protocol so ovariohysterectomy occurred at d 16, 22, 28, 34, 40, and 50 of gestation. Key aspects of the standing flank ovariohysterectomy technique included 1) use of local anesthetic for a standing flank incision, 2) locate the uterine and ovarian arteries via blind palpation and ligate them through the broad ligament via an improved clinch knot, 3) cut the ovaries and uterus free from the broad ligament, 4) ligate the cervix and uterine branch of the vaginal artery, and 5) cut through the cervix and remove the reproductive tract. Surgical times, from skin incision to placement of the last suture, were influenced ( = 0.04) by stage of gestation. In pregnant heifers, time decreased from d 22 (120.0 ± 12.0 min) of gestation to d 40 (79.5 ± 12.0 min) of gestation; then increased at d 50 (90.5 ± 14.7 min) of gestation. Using this procedure, we obtained uterine, placental, and embryo/fetal tissues that had experienced limited hypoxia, little or no trauma, and thus were excellent quality for scientific study. All heifers recovered from surgery quickly and were moved to a finishing period. During the finishing period, ovariohysterectomized heifers had a DMI of 13.8 kg, gained 1.99 ± 0.35 kg/d, and had a G:F of 0.145 over 132-d. The standing flank ovariohysterectomy technique represents a new and viable model to economically obtain high quality tissues for investigating critical biological mechanisms during early pregnancy in beef heifers.

Colonic Obstruction Following Ovariohysterectomy in Rabbits: 3 Cases

We evaluated 3 rabbits (8 months to 1.5 years old) for nonspecific clinical signs including hyporexia/anorexia, lethargy, and decreased/absence of fecal output 5 days to 4 months after undergoing ovariohysterectomy (OHE) procedures. Each external physical examination performed on the rabbits revealed decreased gastrointestinal sounds, abdominal pain on palpation, and a caudal abdominal mass. Complete blood counts and biochemical analyses from the rabbits on presentation were within reference values. Abdominal radiographic findings included gas distension of the intestines along with multiple other distended, ingesta-filled loops. Abdominal ultrasonography was performed on all 3 rabbits, and abnormalities included that the colon tapered abruptly at the level of the uterine stump, a mass was seen around the caudal colon, and that the colon was distended. Positive contrast colonograms were performed in 2 of the rabbits. All 3 rabbits initially responded to medical management; however, after a recurrence of abnormal clinical signs, an exploratory laparotomy was performed on each animal. Of the rabbits, 2 had adhesions from the transected uterine body to the small intestine mesentery, resulting in circumferential stenoses. The 2 rabbits with intestinal stenosis were euthanized intraoperatively owing to the poor prognosis for resection and anastomosis of the colon. In one of the rabbits, sutures placed around the uterine stump during the OHE procedure had inadvertently penetrated the colon; the affected area of the colon was resected but the patient died during the postoperative period. Colonic obstruction following OHE is rare for any species, yet 3 cases of this disease presentation in domestic rabbits are presented in this report. In rabbits, clinical signs might mimic functional ileus; therefore, results of additional testing, including abdominal ultrasonography and a radiographic contrast study, are necessary to obtain a definitive diagnosis. Early surgical exploration and correction of the adhesions before irreversible colonic damage is recommended in suspected cases.

The effect of intravenously given dexketoprofen trometamol on postoperative pain in ovariohysterectomized dogs

Aim: The aim of this study was to investigate the postoperative analgesic effect of dexketoprofen trometamol in dogs subjected to ovariohysterectomy. Materials and Methods: Seventeen adult bitches were randomly allocated to two groups. Dexketoprofen trometamol (n=10, 1 mg/kg, IV) was administered to DEX group after recovery of anaesthesia, while those assigned to the control (C) group (n=7) were not given any analgesic after recovery of anesthesia. The ovariohysterectomy procedure was performed on all dogs by the same researcher using a median laparotomy access. Heart rate (HR), respiratory rate (RR) and body temperature were measured during the postoperative period. Pain level was assessed by two researchers 0, 1, 4 and 6 hours after surgery. A modified University of Melbourne Pain Scale (UMPS) was used to evaluate pain in both groups. Results: According to modified UMPS test, postoperative first hour pain score decreased statistically significant (P 0.05) determined at other measurement times. Conclusions: The presence of stable vital signs of dexketoprofen administration is a promising finding. Dexketoprofen may used for postoperative pain management in dogs due to its clinical advantage shown by the pain scale.

Ovariohisterektomi Yapılan Köpeklerde Propofol ve İzofloran Anestezisinin Derinliğinin Bispektral İndeks Monitörizasyonu ile Belirlenmesi

Ovariohisterektomi Yapılan Köpeklerde Propofol ve İzofloran Anestezisinin Derinliğinin Bispektral İndeks Monitörizasyonu ile Belirlenmesi

Imunoistoquímica de útero e cérvice de cadelas com diagnóstico de piometra

Analisou-se a piometra de 31 cadelas, de raças e idades variadas, sendo 25 cadelas com piometra de cérvice aberta e seis de cérvice fechada. Após ovariossalpingo-histerectomia, foram coletados fragmentos da cérvice e do útero para a avaliação imunoistoquímica. Foram analisados os receptores de estrógenos α e β, progesterona e colágenos I e III. Foram realizadas imunomarcações em diferentes regiões da cérvice, como o epitélio glandular, o epitélio luminal e o estroma glandular, assim como em diferentes regiões do útero, como o epitélio glandular e o estroma glandular. As imunomarcações de colágenos I e III foram realizadas nas regiões glandular e muscular da cérvice e do útero. Concentrações de receptores de progesterona foram maiores em cadelas com piometra fechada.