This is the case of a specimen of Didelphis albiventris with signs of respiratory difficulty after a dog attack. Thoracic radiographic examination revealed pneumothorax, pulmonary contusion, and rib fracture, but no alteration compatible with diaphragmatic hernia was observed. Pneumothorax was reduced and the other alterations were treated. However, clinical manifestations persisted, and thus a contrast-gastrointestinal radiographic study was performed, showing abdominal organs in the thoracic cavity and loss of diaphragmatic line. The surgical approach was instituted, with access to the diaphragm through median laparotomy. Through the diaphragmatic rupture, present in the left antimere, there were herniated liver and gastric portions, intestinal segments, and omentum. After inspection and repositioning of the abdominal organs, the diaphragm raffia was performed with single sutures interrupted with 3-0 Nylon thread. The patient’s complete recovery occurred 14 days after the surgical procedure, with remission of clinical manifestations and normality of thoracic images in radiographic studies.
Background: The South American coatis (Nasua nasua) are capable of adapting to different habitats, which allowed them to exchange between domestic and wild areas, increasing the occurrence of traumas. Procedures performed in this species demand anesthetic protocols that take comorbidities into account and cause minimal cardiorespiratory depression as well as rapid recovery. It is in such context that locoregional anesthesia has become an essential tool. Thus, we aim to report the use of two techniques of locoreginal block: brachial plexus block and lumbosacral epidural block, in a Nasua nasua submitted to osteosynthesis of the radius and caudectomy due to trauma.Case: A adult male coati weighing 2.3 kg was referred to the Veterinary Medical Teaching Hospital of the Universidade Federal do Paraná (UFPR) - Setor Palotina with a history of trauma. Physical examination showed crackling in the radius and ulnar region, and also abnormal angulation in the distal portion of the tail. After taking x-rays, fractures were confirmed in the distal radius and in the distal portion of the tail. The patient was referred for surgery. After 8 h of water and food withdrawal, the animal was premedicated with a combination of ketamine (10 mg/kg), midazolam (0.3 mg/kg) and methadone (0.2 mg/kg), intramuscularly (IM). Induction of anesthesia was performed with propofol titrated to effect (total dose 4 mg/kg) and anesthesia was maintained with isoflurane in spontaneous ventilation using a non-rebreathing circuit (Baraka). It was evaluated heart rate (HR), respiratory rate (RF), end-tidal CO2 (EtCO2), expired isoflurane fraction (FE´Iso), oxyhemoglobin saturation (SpO2), electrocardiography (ECG), systolic blood pressure (SBP) and core temperature (CT) using a multiparametric monitor. After the stabilization period, the animal was positioned in lateral recumbence. A subscapular brachial plexus block was performed with bupivacaine (0.2 mL/kg) using a peripheral nerve stimulator to ensure the correct perineural deposition of the local anesthetic. During anesthesia, rescue analgesia was administered when there was a 20% increase in HR, RR or SBP compared to baseline values. Thus, in this case, two rescues with fentanyl (2 µg/kg) were necessary. The animal remained stable and, at the end of the first procedure, he was placed in ventral recumbence, with the hindlimbs pulled cranially in order to locate the lumbosacral space. Epidural injection was performed with lidocaine (0.18 mL/kg). Rescue analgesia was not necessary during the caudectomy procedure. The procedure had a total duration of 3 h and extubation occurred 3 min after inhalation anesthesia withdrawal. At the end of the surgery, the animal was medicated with meloxicam (0.1 mg/kg) and methadone (0.2 mg/kg). Two h after the end of the surgery, the animal was able to feed again.Discussion: The literature is scarce regarding anesthetic techniques in the Nasua nasua species, especially in the context of locoregional anesthesia. In this report, the protocol used as pre-anesthetic medication was considered satisfactory. Brachial plexus block is a safe technique for desensitizing the forelimb for surgical procedures distal to the scapulohumeral joint. Despite some morphological differences in the spinal anatomy of coatis, there was no difficulty in identifying the epidural space or inserting the needle. The absence of complications, and the hemodynamic stability during the anesthesia period, combined with the satisfactory recovery of the patient points to the success of the techniques used in the present report.
Background: The Coragyps atratus flies long distances in search of food and has a marked behaviour of food competition. Since they are frequently found in areas of recent human occupation, they are subject to trauma, which may require surgical interventions. Locoregional blocks are used as part of a balanced-anaesthesia protocol and are currently being evaluated in birds, with brachial plexus block being the main technique described in the literature. However, to our knowledge, this is the first description of intravenous regional anaesthesia (Bier's block) in a vulture. Thus, we aim to report the use of Bier's block with 1% lidocaine, in a black-headed vulture submitted to digit amputation. Case: A black-headed vulture (Coragyps atratus), weighing 2 kg, was rescued and referred to the Veterinary Hospital due to its inability to fly. Physical examination revealed a swollen digit in the right pelvic limb. Radiographic examination confirmed the intermediate phalanx fracture of the 4th digit of the right pelvic limb with signs suggestive of advanced osteomyelitis. The animal was referred to surgery for amputation of the affected digit. Before surgery, water and food were withdrawn for 12 h. Pre-anaesthetic medication consisted of 1 mg/kg midazolam and 0.5 mg/kg morphine intramuscularly (IM). Anaesthetic induction was performed through face mask with isoflurane, followed by orotracheal intubation with a 3 mm-endotracheal tube. Anaesthesia was maintained with isoflurane through a non-rebreathing circuit in 100% oxygen. Using a multiparametric monitor, heart rate (HR), respiratory rate (RR), end-tidal CO2 (EtCO2), oxyhemoglobin saturation (SpO2), electrocardiography (ECG), systolic blood pressure (SBP) and core temperature (CT) were evaluated. Antisepsis of the right pelvic limb was performed and an elastic band was applied around the distal region of the affected tibia to serve as a tourniquet. A scalp vein set was used to access the lateral saphenous vein in the region distal to the tourniquet, and 5 mg/kg lidocaine 1% was injected intravenously. The patient remained stable during the procedure, with no need for analgesic rescue. The tourniquet was gradually released 40 min past its application, being completely removed after 45 min of surgery. The anaesthetic supply was interrupted, with extubation after 4 min; the patient had satisfactory anaesthetic recovery. Discussion: The present report describes the success in using the technique of intravenous regional anaesthesia with 1% lidocaine for digit amputation performed on a specimen of black-headed vulture. The pre-anaesthetic medication provided analgesia, satisfactory sedation for venoclysis, and anaesthetic induction without complications. Anaesthetic induction and maintenance in birds are preferably performed with inhaled anaesthetics, thus the choice of mask induction. Despite the reduction in RR soon after induction, the patient remained on spontaneous ventilation. Bier's block using 5 mg/kg lidocaine showed to be an easy and safe technique in vultures, but doses up to 6 mg/kg lidocaine are not associated with adverse effects in birds. The intravenous regional anaesthesia technique described in this manuscript promoted adequate analgesia for the digit amputation procedure in black-headed vultures and allowed hemodynamic stability without significant anaesthetic complications. Thus, the present report points to the potential use of this locoregional block in other birds. Keywords: locorregional block, lidocaine, anaesthesia. Título: Anestesia regional intravenosa (bloqueio bier) em urubu-de-cabeça-preta (Coragyps atratus) submetido à amputação de dígito. Descritores: bloqueio locorregional, lidocaína, anestesia.
Behavioral disorders, including noise phobia, have a great impact on small animals internal medicine, impairing their quality of life as well as their life expectancy. The objective of this work is to report the case of a male dog who suffered from noise phobia and panic attacks triggered by thunderstorms and fireworks, and did not respond to previous training and treatment. After clinical and laboratory evaluations, he was treated with 2mg/kg clomipramine twice daily for 90 days associated with 0.06mg/kg alprazolam as needed on those days of intense fear. During the first week of treatment, a significant improvement could already be observed, with reduction in destructive behaviors, which lingered on for up to eight months of follow-up. The treatment stabilized the clinical condition and improved the patient’s quality of life.
Background: The term “rabbit gastrointestinal syndrome” (RGIS) refers to a decrease in peristaltic movements, which in some cases can progress to absolute inactivity of the digestive apparatus. This condition is mostly secondary to others that promote changes in gastrointestinal motility, such as dehydration, fiber deficiency, excess carbohydrates in diets, stress, and acute or chronic painful processes. Clinical manifestations are mostly nonspecific. Thus, a case of RGIS resulting from environmental change in a domestic rabbit (Oryctolagus cuniculus) is reported.Case: A 4-month-old male domestic rabbit weighing 0.962 kg was referred to a university veterinary hospital. The patient had a history of absence of defecation and anorexia for the past two days. The owner reported that the patient was apathetic but became aggressive when manipulated. The changes started after a move of residence. On physical evaluation, an increase in abdominal volume and a painful response to touch on the abdomen were observed. Complementary examinations were performed, such as a blood count and an ultrasound study. The blood tests showed no alterations, but the ultrasound evaluation showed the presence of free abdominal fluid, dilated intestinal loops due to fluid content, reduced gastrointestinal motility, and a hyperechoic structure associated with acoustic shading in the small intestine, all findings suggestive of obstruction. Given the failure of clinical management, the patient was referred for an exploratory laparotomy procedure followed by enterotomy. The obstruction point was located near the ileocecal junction. After surgery, analgesics, antibiotics, fluid therapy, anti-inflammatory drugs, intestinal motility inducers, and probiotics were prescribed. One week after the surgical procedure, the patient showed improvement in the clinical condition, with normal appetite, defecation, and docility.Discussion: RGIS is diagnosed based on the clinical history, clinical manifestations, and complementary examinations. In the reported case, the patient presented apathy, anorexia, absence of defecation, and aggressiveness on manipulation, which were associated with abdominal pain. In cases of RGIS, hematological changes may or may not be present, which matches the findings in this report. Imaging exams provide important information, such as the patient’s condition and evolution. Ultrasound evaluation showed the presence of free abdominal fluid, dilated intestinal loops due to fluid content, reduced gastrointestinal motility, and a hyperechoic, immobile acoustic shading structure in the small intestine. Ultrasound findings were compatible with those found in cases of foreign-body obstructions, a common complication in RGIS. Initially, a clinical approach was taken, but in view of the unfavorable evolution of the case, with worsening motility and alterations in the imaging examination, a surgical approach was instituted. Intestinal obstructions in rabbits are usually found either in the proximal duodenum or near the ileocecal junction. In the presently reported patient, an obstruction was identified in the ileocecal junction region and the content found was composed of hair and dehydrated food. There are several conditions that can alter intestinal peristalsis in rabbits; in the present case, it was considered that the distress caused by moving to a new household led to a condition of RGIS. Despite the reserved prognosis associated with surgical interventions in the gastrointestinal system of rabbits, as described in the literature, in the present case this approach made it possible to preserve the patient’s life, which returned to its normal activities and behavior.
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