Eric MonnetColorado State University | CSU · Department of Clinical Sciences
Eric Monnet
DVM, PhD, DACVS, DECVS
About
285
Publications
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4,439
Citations
Citations since 2017
Introduction
Aortic valve replacement: TAVR
Mitral valve regurgitation
Heart failure
Additional affiliations
April 2012 - present
January 2008 - October 2017
Education
May 1994 - May 1996
January 1991 - May 1994
September 1982 - July 1986
Publications
Publications (285)
Constrictive pericarditis compromises cardiac filling by causing a nondistensible, thickened, and fibrotic pericardium. Constrictive pericarditis is the end stage of an inflammatory process involving the pericardium. It can result from any chronic pericarditis. Constrictive pericarditis affects late diastole. During early diastole the ventricles fi...
The classification and grouping of circulatory disorders of the liver were standardized by the World Small Animal Veterinary Association, Liver Standardization Group. A clear understanding of the pathophysiology behind this terminology is essential for interpreting diagnostic test results, as well as determining whether a particular portosystemic v...
The visceral pericardium is a serous membrane of a single layer of mesothelial cells firmly adhered to the epicardium. The parietal pericardium is attached to the great vessels. Pericarditis has been associated with feline cardiomyopathy and feline infectious peritonitis. Idiopathic pericardial effusion is the most common cause of acute or chronic...
Nephroliths can cause obstruction of urine flow, may be associated with pyelonephritis, or can result in progressive enlargement of the kidney and deterioration of renal function. The physiologic response to upper urinary tract obstruction is extremely complex and depends on the species, the age of the animal, the degree of obstruction, the length...
Acute lower urinary tract obstruction represents a medical emergency with electrolyte abnormalities. The diagnosis and localization of the stones require physical examination and imaging. Medical treatment is indicated when there is no urinary obstruction. Cystic calculi can be retrieved during cystoscopy using stone baskets. With electrohydraulic...
Pancreatitis, an inflammation of the pancreas, is commonly seen in clinical practice and is associated with significant morbidity and mortality in both dogs and cats. The pathogenesis of pancreatitis is very complex and still poorly understood. Chronic pancreatitis occurs frequently in both dogs and cats, but it remains to be determined whether chr...
Gastric dilatation volvulus (GDV) syndrome is characterized by accumulation of air within the stomach with a rapid rise in intraluminal pressure, gastric malpositioning, compression of the diaphragm and caudal vena cava, and impaired respiratory and cardiovascular function. Serum gastrin concentrations have been investigated as a potential cause of...
Surgery of the lungs in dogs and cats is mostly due to acquired pulmonary disease. Surgery of the lungs requires access to the thoracic cavity by thoracotomy or thoracoscopy. Cystic and bullous lesions in the lungs are characterized by a thin‐walled cavity within the lung parenchyma. Bronchoesophageal fistulas can result from foreign bodies that be...
Thoracic surgery requires a good understanding of pulmonary and cardiac physiology. Perioperative management of cases is very important for a successful outcome. All animals undergoing thoracic surgery should be monitored closely in the perioperative period. Respiratory monitoring is required in the perioperative thoracic surgery patient. Blood pre...
Vascular ring anomalies are a consequence of abnormal embryologic development of the aortic arches and result in abnormal vessels encircling the esophagus and trachea, causing partial obstruction of the esophagus. Seven different types of vascular ring anomaly have been described. This chapter describes this seven types in detail. Computed tomograp...
Objective:
To compare leakage pressures of vesicourethral anastomosis (VUA) performed with conventional and unidirectional barbed sutures in canine cadaveric tissue.
Study design:
Experimental, ex-vivo, randomized study.
Animals:
A total of 24 male canine bladders with the urethra.
Methods:
Specimens after prostatectomy were randomly divided...
Laryngeal paralysis is characterized by the lack of abduction of the arytenoid cartilages during inspiration. Congenital and acquired forms of laryngeal paralysis have been recognized in dogs and cats. Since the recurrent laryngeal nerve is the motor nerve of the larynx and is responsible for the abduction of the arytenoid cartilages during inspira...
Objective:
To describe the technique of laparoscopic radical prostatectomy in canine cadavers.
Study design:
Cadaveric study.
Animals:
8 canine cadavers.
Methods:
Specimens were randomly divided into a 2D or 3D group. The vesicourethral anastomosis (VUA) was performed with 5 mm laparoscopic needle holders. A unidirectional barbed suture was...
Energy has been used in surgery for thousands of years. The first form of energy used in surgery was thermal cautery, or the application of energy as heat to tissues. Electrosurgery instruments apply an electrical current to tissue, enabling cutting, coagulating, desiccating, or fulgurating by generating heat. There are three basic types of wavefor...
Right atrial tumors are the most common cause of pericardial effusion of neoplastic origin. The vast majority of right atrial tumors are hemangiosarcomas. If a right atrial mass is present on echocardiography, it might be advisable to perform a right atrial appendage resection at the time of the thoracoscopic pericardectomy. Echocardiography is the...
Lung biopsy and lung lobectomy can be performed with thoracoscopic surgery in cats and dogs. Complete or partial lung lobectomy can be completed under thoracoscopy or using a thoracoscopic-assisted technique. One-lung ventilation (OLV) or carbon dioxide insufflation may be required to increase working space for thoracoscopic lung lobectomy. Thoraco...
Persistent right aortic arch (PRAA) with left ligamentum arteriosum accounts for greater than 90% of vascular ring anomalies in dogs. German shepherds, Irish setters, and Boston terriers are thought to be at increased risk for development of a vascular ring anomaly. Continued medical management with semiliquid diets and upright feeding may be neces...
The most common surgical procedures undertaken for heart and heart‐base tumors include subtotal pericardiectomy via open thoracotomy, pericardial window via thoracoscopy, right atrial auriculectomy, atrial mass removal, and heart‐base tumor resection. Heart‐basetumors and tumors involving the right atrium and atrial appendage are best diagnosed wit...
Objective
To evaluate thoracoscopic treatment of persistent right aortic arch (PRAA) in dogs with and without the use of one lung ventilation (OLV).
Study Design
Retrospective cohort study.
Animals
Twenty-two (client-owned and shelter) dogs diagnosed with PRAA.
Methods
Medical records were reviewed retrospectively and intraoperative and immediat...
Objective
To describe the treatment of persistent right aortic arch (PRAA) in dogs with combined ligamentum arteriosum (LA) transection and esophageal diverticulum resection.
Animals
Three client owned dogs.
Study Design
Short case series.
Methods
Medical records were reviewed for clinical signs, diagnostic procedures, surgical treatment, post-o...
Chronic low‐grade pancreatic disease often must be differentiated from other causes of chronic gastrointestinal disorders. Biopsies are indicated to help determine the cause of diffuse pancreatic disease. This chapter provides the surgical techniques of the gastrointestinal tract in dogs and cats. The surgical techniques include pancreatic biopsy,...
This chapter discusses the anatomy and the physiology of the stomach of dogs and cats. The anatomy and the physiology need to be fully understood before performing surgery on the stomach, and especially if a major resection and reconstruction are planned. Acid secretion in the stomach is a major cause of complications after gastrectomy in dogs and...
Liver lobectomies are most commonly performed in dogs and cats for removal of primary liver tumors or neoplasia of the biliary system. Liver lobe abscess and liver lobe torsion are the other two common indications for liver lobe resection. A liver biopsy is collected on the periphery of the liver lobe if there is no obvious lesion present in the li...
Enteral feeding is an important component of the treatment of critically ill patients, and for the support of patients with anorexia related to chronic conditions. Nasogastric or nasoesophageal feeding tubes can be used in dogs and cats. Since the tubes are of a small diameter they can be advanced in the stomach without increasing the risk of gastr...
Glossectomy has been defined as partial, subtotal, near‐total and total glossectomy. Partial glossectomy is mostly performed for the surgical resection of tumor in the cranial part of tongue. Near‐total glossectomy can be performed for tumor or trauma to the caudal part of the tongue or for tumor extending across midline caudal to the frenulum. Squ...
Esophagectomy is indicated for the resection of tumors, strictures, diverticulum, and non‐viable segments of the esophagus after pressure necrosis from a foreign body. The most common types of neoplasia found in the esophagus are squamous cell carcinoma, leiomyosarcoma, fibrosarcoma, and osteosarcoma. This chapter describes the approaches to the ce...
Hepatic arterio‐venous (AV) fistulas are the result of a congenital connection between a branch of the hepatic artery and a branch of the portal vein. They result in portal hypertension with hepatofugal flow. A computed tomography (CT) angiogram is the most valuable imaging to identify the extent of the AV fistula. The arterial phase of the CT angi...
This chapter provides the surgical techniques of the gastrointestinal tract in dogs and cats. Cholecystotomy, cholecystectomy, and cholecystostomy are the possible procedures involving the gallbladder. Biliary stones can be removed via a cholecystotomy if the gallbladder is viable and not contributing to the formation of the biliary stones. Cholecy...
Congenital portosystemic shunts (PSS) are abnormal blood vessels that allow blood from the portal vein to bypass the liver parenchyma. They can be intrahepatic or extrahepatic depending on whether or not they enter the liver parenchyma. Extrahepatic PSS are either porto‐caval or porto‐azygous shunt depending if they are connecting a branch of the p...
Roux‐en‐Y has been used mostly to replace the Billroth II in an effort to avoid the afferent loop syndrome and the reflux of bile in the stomach. It also helps prevent the ulceration of the afferent loop at the level of the stoma with the stomach. The diversion of the gastrointestinal tract with a Roux‐en‐Y technique can be used to palliate an obst...
Vascular ring anomalies are congenital abnormalities resulting in compression of the esophagus. They are the result of the abnormal development of the aortic arches during embryological development. All vascular ring anomalies result in compression of the esophagus at the base of the heart with a cranial megaesophagus. An aberrant subclavian artery...
Cricopharyngeal myotomy is most commonly performed for the correction of cricopharyngeal achalasia. Heller myotomy is indicated for achalasia of the distal esophagus. In cricopharyngeal myotomy, the cricopharyngeal muscle is innervated by the vagus nerve via branches of the pharyngeal plexus and the laryngeal recurrent nerve. A skin incision is mad...
The gastrointestinal tract heals as any other tissue in an orderly manner, with an inflammatory phase, a debridement phase, a granulation phase, and a maturation phase. Healing should happen with minimal scaring and stricture formation that could impede the motility of the gastrointestinal tract. Additionally, the formation of adhesions, even thoug...
Stenting of the biliary system, and mostly the common duct, is indicated to palliate either a permanent or a temporary obstruction of the common bile duct or to support the biliary system while a tear is healing by second intention. It has also been used in human surgery to treat bile leakage after cholecystectomy. Permanent stenting can be accompl...
Tonsillectomy is mostly performed for the removal of neoplasia. Squamous cell carcinoma is commonly diagnosed in the tonsil in dogs. Tonsillectomy can also be performed for chronic tonsillitis. This chapter presents surgical techniques for removing tonsil in dogs. The oral mucosa is incised around the tonsil that is removed. After completion of the...
Neoplasia, ulceration with or without perforation, and necrosis of the stomach wall due to a gastric dilatation and volvulus are the most common indications for a gastrectomy in dogs and cats. Partial gastrectomy is commonly performed during the surgical treatment of gastric dilatation and volvulus. Gastrectomy is a well‐tolerated surgery in dogs a...
Pyloroplasty and pyloromyotomy have been recommended to release a benign gastric outflow obstruction. Pyloric hypertrophy can be the result of muscular hypertrophy, mucosal hypertrophy, or both. Endoscopic evaluation of the pylorus is recommended before surgery with needle aspiration to further document the nature of the obstruction. This chapter d...
The indications for intestinal resection and anastomosis include devitalization, irresolvable obstruction or dysfunction, and irreparable perforation. These conditions may be caused by foreign bodies, neoplasia, abscess, granuloma, trauma, intussusception, volvulus or torsion, her‐niation/strangulation, neurological disorders, ulceration/ perforati...
Esophagotomy is mostly performed to remove a foreign body wedged in the esophagus. The cervical esophagus is exposed with a ventral midline approach and separation of the sternohyoideus muscle cranially and sternothyroideus and sternocephalicus muscles caudally. After retraction of the trachea on one side, the esophagus is exposed. Stay sutures are...
Billroth II is one of the surgical procedures used to reconstruct the upper gastrointestinal tract in dogs and cats. It is indicated when the gastrectomy is removing the pylorus, the pyloric antrum, and part of the body of the stomach. Billroth II is indicated when the resection does not allow a gastro‐duodenostomy because of tension. It is recomme...
Septic peritonitis and chemical peritonitis are the two most common conditions that are treated with some form of drainage. The main goal of the drainage is to decrease the bacterial load and/or to reduce the amount of chemical present in the pleural space. Drainage of the peritoneal cavity can be achieved with either a closed suction drain, a nega...
This chapter provides information on the surgical techniques involved in biliary diversion. Biliary diversion is required to re‐establish flow of bile when the common bile duct is obstructed by either an extraluminal mass, biliary lithiasis, acute or chronic pancreatitis, or neoplasia of the common bile duct. Permanent diversion of bile from the bi...
Chinese Sharpei and English Bulldogs are the two breeds most commonly reported with hiatal hernias. Hiatal hernias are only surgically treated if they are inducing vomiting or regurgitation. Thoracic radiographs with barium are sufficient to make the diagnosis of a sliding hiatal hernia. Flexible endoscopy of the upper gastrointestinal tract is rec...
Billroth I is a surgical procedure used to reconstruct the upper gastrointestinal tract after partial gastrectomy. This procedure is indicated when the gastrectomy includes only the pyloric antrum and the proximal duodenum. The most common indications for a Billroth I are pyloric obstruction due to neoplasia, resection of ulcer in the pyloric antru...
Chronic pancreatitis and neoplasia in the wall of the duodenum are the most common causes of obstruction of the distal segment of the common bile duct. Other indications include an obstruction of the distal part of the common bile duct requiring the transposition outside of the pancreas, an obstruction secondary to stones or the repair of the bile...
A gastrotomy is most commonly performed in dogs and cats for retrieval of a foreign body lodged in the stomach or to release a linear foreign body anchored in the pylorus. Gastrotomies are also used to collected full‐thickness gastric biopsies. After performing a midline laparotomy and exploration, the stomach is exposed in the cranial part of the...
Surgery on the large intestine may be indicated for lesions that cause obstruction, perforation, colonic inertia (megacolon), entrapment, torsion, or volvulus, and for severe or long‐standing inflammatory conditions. Megacolon in cats is mostly idiopathic, but it may result from mechanical obstruction, most commonly from pelvic malunion after fract...
Background:
High recurrent functional ischemic mitral regurgitation (FIMR) has been observed after annuloplasty. Since annuloplasty alone could not prevent late recurrent FIMR or improve the survival rate after CABG, adjunctive subvalvular opt for better treatment tailored for each individual patient.
Methods:
Ex vivo ovine heart models with ann...
Objective:
To determine the frequency and types of paramedian incisional complications after prophylactic laparoscopy-assisted gastropexy (LAG) in dogs and to evaluate potential risk factors for complications.
Study design:
Multi-institutional retrospective study.
Animals:
Client-owned dogs (N = 411).
Methods:
Records for dogs that underwent...
Objective:
To compare demographics and disease characteristics in dogs in which peritoneopericardial diaphragmatic hernia (PPDH) had been diagnosed and report outcomes after surgical treatment (ST) or conservative treatment (CT).
Study design:
Retrospective study.
Sample population:
One hundred twenty-eight dogs (91 ST, 37 CT) in which PPDH ha...
Objective:
To evaluate the outcome of laparoscopic cholecystectomy performed with a single port access system (SPAS) in dogs.
Study design:
Retrospective study.
Animals:
Fifteen client-owned dogs with nonobstructive gallbladder disease.
Methods:
Medical records were reviewed for signalment, clinical signs, diagnostic imaging, surgical findin...
Background:
The purpose of this study was to evaluate the effect of a prophylactic laparoscopic gastropexy on gastric motility in healthy large-breed dogs.
Methods:
This was a prospective pilot study with nine healthy client-owned dogs. Each dog was its own control. Gastric motility was evaluated before and after laparoscopic gastropexy. Dogs we...
Objective
To determine the effect of the length of incision and of the number of suture lines on the load to failure of incisional gastropexy in an ex vivo model.
Study design
Ex vivo study.
Sample population
Thirty‐six hound‐mix fresh canine cadavers.
Methods
Specimens were randomly divided into four groups of incisional gastropexies varying in...
Objective
To review reported complications related to the different laparoscopic entry techniques in the human and veterinary literature and describe the benefits and limitations of each technique.
Study design
Literature review of 57 peer‐reviewed articles.
Methods
An electronic database search identified human and veterinary literature describi...
Objective
To report the outcome of dogs with presumptive echocardiographic idiopathic pericardial effusion treated with thoracoscopic pericardectomy and pericardioscopy.
Study design
Multi‐institutional retrospective study (2011‐2017).
Animals
Eighteen dogs.
Methods
Records were searched for dogs with pericardial effusion and no identified cause...
Objective
To define boundaries of minimally invasive integrated endoscopic hemilaminectomy at 4 sites in the canine thoracolumbar spine.
Study design
Experimental, randomized cadaveric study.
Animals
Six cadaver dogs that had been humanely euthanized for reasons unrelated to this study.
Methods
Hemilaminectomy was performed with an integrated en...
Failure of small-caliber grafts, used as bypass or reconstructive grafts in cardiovascular treatments, is often caused by thrombosis and stenosis. We have developed a multilayered, compliant graft with an electrospun heparin-encapsulated core and collagen-chitosan shell. Herein, the performances of acellular and cell-seeded grafts were evaluated in...
OBJECTIVE To evaluate thoracoscopy as a treatment for dogs with persistent right aortic arch (PRAA) and to compare intra- and postoperative complications and short-term outcomes of dogs that underwent thoracoscopy versus thoracotomy for treatment of PRAA.
DESIGN Retrospective cohort study.
ANIMALS 30 dogs (24 client-owned and 6 shelter-owned) that...
Background:
Surgical method of choice for functional mitral regurgitation (FMR) is debatable, since recurrence of FMR post-annuloplasty has been reported in a significant number of cases. Developing a pulsatile FMR heart model by left ventricular dilatation can be a favorable option for usage in the primary stages of developing new surgical techni...
Objective:
To describe pet owner preferences within the veterinary community when choosing operative techniques for canine spay.
Study design:
Prospective survey.
Sample population:
1234 respondents from 5 veterinary university teaching hospitals in North America.
Methods:
An electronic survey was distributed to faculty, students, and staff...
Objective:
To determine the efficacy of repeated decontamination and sterilization of a disposable port intended for 1-time use during single-incision laparoscopy.
Study design:
Experimental; prospective, controlled design.
Methods:
Six single-access ports used 4 times and 6 single-access ports used 8 times to perform various clean, minimally...
OBJECTIVE To evaluate the effect of bilateral ventriculocordectomy via ventral laryngotomy on laryngeal airway resistance (LAR) in canine cadaver larynges.
SAMPLE 6 clinically normal canine cadaver larynges.
PROCEDURES LAR was determined for each specimen before (baseline) and after bilateral ventriculocordectomy with the epiglottis open and closed...
Objective:
To compare clinical outcomes of dogs with congenital intrahepatic portosystemic shunts (CIHPSS) treated with cellophane banding (CB) or percutaneous transvenous coil embolization (PTCE).
Study design:
Dual-institutional retrospective study.
Animals:
Fifty-eight dogs with CIHPSS (2001-2016).
Methods:
Medical records of dogs undergo...
Postoperative seizures occur in 5-12% of dogs following surgical attenuation of congenital extrahepatic portosystemic shunts (CEPSS) and are often refractory to treatment. Because pugs are predisposed to necrotizing meningoencephalitis, they may be at higher risk of developing neurologic complications after CEPSS attenuation. We hypothesized that p...
Single incision laparoscopic surgery (SILS) involves only a single 2–3 cm incision in the ventral midline of the patient with entry of the port, particularly the foam SILSTM Port multiple access port. This type of minimally invasive surgery (MIS) surgery with use of only one port and a controlled Hasson approach provides decreased risk of iatrogeni...
Objective:
To compare two suturing techniques for prophylactic laparoscopic gastropexy in healthy dogs.
Study design:
Retrospective case series.
Animals:
Thirty healthy client-owned dogs from breeds predisposed to gastric dilation volvulus.
Methods:
Medical records of dogs presented for prophylactic laparoscopic gastropexy performed with kno...
Congenital septal defects include ventricular septal defect (VSD), atrial septal defect (ASD), atrioventricular septal defect (AVSD), and tetralogy of Fallot. Isolated VSD is a congenital defect that results from incomplete closure of the membranous and/or muscular ventricular septum. The pathophysiology and natural history of VSD depend on its siz...
Functionally, the thoracic wall is composed of passive elastic structures and an active musculature. Trauma to the thoracic wall can result from blunt or penetrating injury. Management of thoracic wall trauma must take into consideration the likelihood of injury to internal thoracic structures. Computed tomography (CT) is the imaging technique of c...
The structure of the trachea provides rigidity that resists forces generated by breathing and lateral flexibility to support movement of the neck. A temporary tracheostomy is typically performed under general anesthesia, but in an emergent situation is performed under sedation and local anesthesia. Care after surgery is important to the success of...
Pneumothorax results when air enters the pleural space. Clinical signs, auscultation, and thoracic radiographs are the key elements for the diagnosis of a pneumothorax. Pneumothorax causes a restrictive breathing pattern characterized by rapid shallow breathing. Treatment of pneumothorax requires urgent evacuation of air from the pleural space. Man...
Drainage of the pleural space is required when air or fluid is present in the pleural space and is interfering with lung expansion. Drainage systems can implanted under the skin for cases that require chronic pleural drainage. Thoracocentesis is typically performed through the lateral thoracic wall with the animal standing or in lateral recumbency....
Hemangiosarcoma (HSA) is the most common cardiac neoplasia in dogs accounting for about two thirds of cardiac neoplasia in this species. The most common clinical presentation for right auricular HSA is acute or chronic cardiac tamponade, resulting from intrapericardial hemorrhage or effusion. Resection of the right auricle can be considered for pal...
Pacemaker therapy is indicated mostly for the treatment of symptomatic bradycardia in small animal medicine. Atrioventricular (AV) block, sick sinus syndrome and permanent atrial standstill are the most common conditions treated in veterinary medicine. Pacemaker implantation has also been used for resynchronization therapy in patients with severe l...
The tricuspid and mitral valves comprise the atri-oventricular valves that allow forward filling of the ventricles during diastole and prevent backward flow into the atria during systole in the right and left heart, respectively. Tricuspid valve dysplasia (TVD) is a congenital malformation of the tricuspid valve that occurs in dogs and cats. Surgic...
Minimally invasive surgery (MIS) encompasses a variety of surgical techniques, all intended to minimize the size of surgical incisions in an effort to reduce surgical trauma, decrease post-operative pain, and hasten recovery of the patient. MIS strategies include limited- or minimal-incision surgery, endoscopic or video-assisted surgery, and image-...
The diaphragm separates the thoracic and abdominal cavities. Surgery on the diaphragm represents an intersection between thoracic and abdominal surgery. The diaphragm has three passages: the aortic hiatus, the esophageal hiatus, and the caval foramen. Traumatic diaphragmatic hernia is the most common surgical condition of diaphragm in dogs and cats...
This chapter emphasis on the cardiopulmonary systems, monitoring and support of other organ systems including blood, renal, hepatic, and neurological systems are also crucially important. Clinical evaluation begins with the simple observation of breathing. Ventilatory effort may be observed to be poor, particularly in the immediate post-operative p...
Cardiac surgery strategies include surgeries performed on the beating heart, surgeries performed with brief circulatory arrest during venous inflow occlusion, surgeries performed with the aid of cardiopulmonary bypass (CPB), and hybrid cardiac surgeries that combine image-guided interventional techniques with minimal-incision cardiac approaches. Ma...
The pulmonary outflow tract consists of the outflow portion of the right ventricle, pulmonary valve, pulmonary artery and the branch pulmonary arteries. Valvular pulmonary stenosis (PS) represents a constellation of pathologic malformations of the pulmonary valve. PS and other pulmonary outflow obstructions cause pressure overload on the right vent...
The pericardium is a saclike structure that envelopes the heart and origins of the great vessels. Pericardial effusions are categorized by characteristics of the accumulated fluid. Echocardiography is sensitive for diagnosis of pericardial effusion and can detect as little as 15 mL of fluid. Surgical options for management of pericardial effusions...
The ductus arteriosus is a vascular connection between the pulmonary artery and descending aorta that allows venous blood to bypass the collapsed fetal lungs. Continued patency of the ductus arteriosus for more than a few days after birth results in the condition of patent ductus arteriosus (PDA). Animals with PDA may be apparently asymptomatic to...
The thoracic cavity is completely lined by pleura, a serous membrane. Dogs and cats with pleural effusion present with decreased activity levels, difficulty breathing, and coughing. The presence of a pleural effusion is established from auscultation and thoracic radiographs. Pyothorax is characterized by a septic exudate in the pleural space caused...
The primary role of the esophagus is to deliver food and liquid from the oropharynx to the stomach. The esophagus consists of cervical, thoracic, and abdominal portions. The esophageal wall is comprised of the adventitia, muscularis, submucosa, and mucosa layers. This chapter discusses surgical conditions of the esophagus, such as esophageal foreig...
A major function of the cardiopulmonary system is to deliver oxygen to tissues and eliminate carbon dioxide generated by tissue metabolism. Compromise of either system—or both systems—can adversely affect the outcome of animals undergoing thoracic surgery. The oxygen pathway is a clinically useful concept that provides a logical framework for evalu...
Proper instrumentation is an important element of successful animal thoracic surgery. The standard retractor for thoracic approaches is a Finochietto retractor, which should be available in four sizes to accommodate different size animals. Both short and long scalpel handles with #11, #10, and #15 scalpel blades are needed. The standard tissue forc...
Several types of vascular ring anomalies have been reported in dogs and cats. Computed tomography angiography has been used to define the anatomy of vascular ring anomalies in dogs and cats. Surgical correction of vascular ring anomaly is often palliative because of persistent dysfunction of the cranial esophagus after the obstruction is relieved....
Thymoma is the most important cranial mediastinal mass. Thymomas are tumors of the epithelial cells of the thymus and are differentiated into epithelial, lymphocyte-rich and clear cell types. Cystic thymoma is more common in cats Clinical signs related to masses in the cranial mediastinum vary depending on the thoracic structures affected. Dogs and...
Intercostal thoracotomy is the most commonly employed thoracic approach used for animals. The shape of the thoracic cavity in companion animals makes thoracotomy the more conducive approach, both from the standpoint of access to thoracic structures and from the fact that lateral recumbency is a more physiologically natural position in these species...
Nonvalvular congenital obstructions in small companion animals are uncommon and include cor triatriatum and double-chambered right ventricle (DCRV). Cor triatriatum dexter (CTD) in dogs can be corrected surgically by membranectomy during venous inflow occlusion. Surgical correction during cardiopulmonary bypass has also been reported. Surgical corr...
Median sternotomy is the only thoracic approach that provides access to the entire thoracic cavity, and is therefore the approach of choice when exploratory surgery of the thorax is indicated. Surgeons should not avoid this approach in small animals because of a perception that it is associated with excessive postoperative pain or complications. St...
OBJECTIVE To assess rates of intraoperative complications and conversion to laparotomy associated with supervised veterinary students performing laparoscopic ovariectomy in dogs.
DESIGN Retrospective case series.
ANIMALS 161 female shelter dogs for which elective laparoscopic ovariectomy had been performed by supervised senior (fourth-year) veterin...
Objective:
To determine the viability of a pedicled jejunal autograft after ligation of up to 3 jejunal arteries.
Study design:
Prospective crossover study.
Animals:
Three adult dogs.
Methods:
Dogs were instrumented for measurement of hemodynamic parameters. Two segments of jejunum with 4 arcadial vessels were isolated from the abdomen in ea...
OBJECTIVE To characterize clinical findings, surgical procedures, complications, and outcomes in dogs undergoing extirpation of masses from the cranial mediastinum via video-assisted thoracic surgery (VATS) and establish preliminary guidelines for case selection when considering VATS for thymectomy in dogs.
DESIGN Retrospective case series.
ANIMALS...
Thoracoscopy is a minimally invasive technique for viewing the internal structures of the thoracic cavity. The procedure uses a rigid telescope placed through a portal positioned into the thoracic wall to examine the contents of the pleural cavity. Interventional thoracoscopy is an emerging surgical technique in veterinary surgery used to perform p...
Objective:
To report the perioperative findings and outcome of dogs undergoing video-assisted thoracic surgery (VATS) for the management of pyothorax.
Design:
Multi-institutional, retrospective study.
Animals:
Client-owned dogs (n = 14).
Methods:
Medical records of dogs with pyothorax managed via VATS were reviewed for signalment, history, c...
OBJECTIVE To evaluate the economic and clinical feasibility of introducing rigid endoscopy and laparoscopy to a small animal general practice.
DESIGN Prospective study.
SAMPLE A single 2-veterinarian small animal practice in southern California.
PROCEDURES In early 2012, endoscopic equipment was purchased, and both veterinarians in the practice und...
A state-of-the-art reference for all aspects of thoracic surgery in dogs and cats
Written by two of the foremost experts in this area of surgery, Small Animal Thoracic Surgery encompasses both basic and advanced thoracic surgery for dogs and cats. It provides a host of well-illustrated techniques for thoracic surgery, including classic open surgery...
Objective:
To describe a technique for laparoscopic incisional gastropexy using an articulated endoscopic suturing device with knotless unidirectional barbed suture in healthy large breed dogs.
Study design:
Prospective case series.
Animals:
Healthy client-owned dogs presented for prophylactic gastropexy and weighing >20 kg (n=7).
Methods:
I...
Questions
Question (1)
I am using indocyanine green and near-infrared light to highlight the biliary system within the liver parenchyma. I am testing different dosages of indocyanine green and try to find the dosage that gives me the best contrast between the liver and the biliary system. Can Image J help me measure the optical density in each structure? I can then calculate a ratio
Thanks
Eric
Projects
Projects (4)
Developing an in vitro model of mitral valve regurgitation in sheep
Development of model of progressive pulmonary artery banding to induce right sided diastolic dysfunction in sheep