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Fairfield DK, Singh A, Hawker W, Richardson D, Mayhew P, Balsa I, Culp WTN, Cinti F, Buote NJ, Massari F, Griffin MA, Gibson E, Runge JJ, Chanoit G. Minimally invasive splenectomy is associated with a low perioperative complication rate and short operative time in cats. J Am Vet Med Assoc 2024; 262:1-7. [PMID: 38324998 DOI: 10.2460/javma.23.11.0616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 12/26/2023] [Indexed: 02/09/2024]
Abstract
OBJECTIVE To report the perioperative outcome and complications in cats undergoing minimally invasive splenectomy. ANIMALS 17 client-owned cats. METHODS Perioperative data were collected from cats undergoing minimally invasive splenectomy from September 2010 to June 2023. Data included history, signalment, preoperative examination and diagnostic testing results, operative technique and time, perioperative outcomes, complications, hospitalization duration, histopathological diagnosis, and outcome. RESULTS 13 spayed females and 4 neutered males were included, with a median age of 144 months (48 to 196 months). Seven cats underwent total laparoscopic splenectomy (TLS), with 1 cat requiring conversion from TLS to laparoscopic-assisted splenectomy (LAS) due to splenomegaly and an additional cat requiring conversion from TLS to open splenectomy due to uncontrollable splenic capsular hemorrhage. Ten cats underwent LAS, with 1 cat requiring conversion to open splenectomy due to splenomegaly. Additional procedures were performed in 13 cats, with the most common being liver biopsy in 10 cats. Median operative times were 50 minutes (45 to 90 minutes) for TLS and 35 minutes (25 to 80 minutes) for LAS. An intraoperative complication occurred in 1 cat. All but 1 cat survived to discharge. Median follow-up time was 234 days (18 to 1,761 days), with 15 of 16 cats confirmed alive at 30 days and 9 of 16 cats alive at 180 days postoperatively. CLINICAL RELEVANCE Minimally invasive splenectomy in this cohort of cats was associated with short operative times and a low perioperative complication rate. Veterinary surgeons may consider minimally invasive splenectomy as an efficient and feasible technique in the treatment of splenomegaly or modestly sized splenic masses for diagnostic and therapeutic purposes in cats.
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Affiliation(s)
- Danielle K Fairfield
- 1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ameet Singh
- 1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - William Hawker
- 1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Danielle Richardson
- 1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Philipp Mayhew
- 2Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA
| | - Ingrid Balsa
- 2Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA
| | - William T N Culp
- 2Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA
| | | | | | | | - Maureen A Griffin
- 6School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Erin Gibson
- 6School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jeffrey J Runge
- 6School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Guillaume Chanoit
- 7VetAgro Sup-Veterinary Campus, Department of Small Animal Surgery, Université de Lyon, Marcy-l'Étoile, France
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Hawker W, Singh A. Advances in the Treatment of Chylothorax. Vet Clin North Am Small Anim Pract 2024:S0195-5616(24)00007-X. [PMID: 38503596 DOI: 10.1016/j.cvsm.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Idiopathic chylothorax is a challenging clinical condition historically associated with poor resolution rates following surgical intervention. Recent advances in imaging and surgical techniques have revolutionized the treatment of this disease process. Computed tomographic lymphangiography has facilitated improved surgical planning and postoperative assessment, while intraoperative use of near-infrared fluorescence imaging aids in highly accurate intraoperative thoracic duct identification. Utilizing these advancements, minimally invasive surgical techniques have been successfully developed and have been associated with considerable improvements in surgical outcomes.
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Affiliation(s)
- William Hawker
- Department of Clinical Studies, The Ontario Veterinary College, University of Guelph, 26 College Avenue West, Guelph, N1G 2W1, Ontario, Canada.
| | - Ameet Singh
- Department of Clinical Studies, The Ontario Veterinary College, University of Guelph, 26 College Avenue West, Guelph, N1G 2W1, Ontario, Canada
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Singh A, Hawker W, Mitchell K, Appleby R, Bersenas A, Collier A. Laparoscopic surgical treatment for sliding hiatal hernia is associated with an owner-perceived improvement in clinical outcome in dogs. J Am Vet Med Assoc 2024; 262:1-6. [PMID: 37944256 DOI: 10.2460/javma.23.08.0479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/07/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To report perioperative complications and client-perceived outcome following laparoscopic surgical treatment for sliding hiatal hernia (SHH) in dogs. ANIMALS Client-owned dogs (n = 9). METHODS Medical records were reviewed and perioperative data collected including preoperative diagnostic imaging, operative details, complications, and need for conversion to open celiotomy. A single-incision, multicannulated port was inserted in the subumbilical region followed by placement of an additional 2 or 3 instrument portals. Hiatal plication, esophagopexy, and left-sided gastropexy were performed laparoscopically. Follow-up information was collected with telephone interview with the owners and/or referring veterinarian. A standardized questionnaire was completed by dog owners postoperatively. RESULTS Intraoperative pneumothorax occurred in 5 of 9 (55.6%) dogs and resulted in conversion to open celiotomy in 2 (22.2%) dogs. In 4 dogs, pneumothorax was suspected to be the result of progressive leakage of capnoperitoneum through the suture bite holes of the esophageal hiatal plication sutures. Hiatal plication was performed using intracorporeal simple interrupted sutures (n = 4) or a simple continuous pattern with barbed suture (4). Esophagopexy was performed using barbed suture in all dogs. Gastropexy was performed using a total laparoscopic technique (n = 4) or laparoscopic-assisted technique (3). Using a standardized questionnaire, dog owners perceived a postoperative improvement in regurgitation after eating and regurgitation after excitement/increased activity. CLINICAL RELEVANCE Laparoscopic treatment of SHH resulted in owner-perceived improvement in clinical signs. Intraoperative pneumothorax occurred in a high proportion of dogs but did not result in long-term sequelae.
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Farrell M, Singh A, Larose P, Stine S, Hawker W, Kornya M. Application of a distant, direct, single-pedicle hinge flap for reconstruction of a circumferential cutaneous defect of the thoracic limb in a dog. Can Vet J 2023; 64:620-626. [PMID: 37397698 PMCID: PMC10286138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
A 4-year-old, neutered male, mixed-breed dog initially presented to a tertiary referral center for suspected mushroom intoxication and subsequent necrotizing fasciitis of the right thoracic limb. One day after presentation, a fasciotomy was carried out to remove necrotic tissue, leaving an extensive cutaneous defect spanning from axilla to carpus and occupying 75 to 100% of the circumference of the limb. Following establishment of a bed of granulation tissue, a distant, direct, single-pedicle flap was performed using the lateral thoracoabdominal skin. The limb was flexed at the shoulder and secured to the body wall during flap healing. Staged division of the flap was initiated 20 d after flap harvesting and completed 3 d later. Complete reconstruction of the large circumferential cutaneous defect was obtained 56 d after initial presentation. No major complications were encountered. At 387 d postoperatively, the dog had clinically normal limb function and was free of lameness. Key clinical message: This case report demonstrates the successful use of a distant, direct, single-pedicle hinge flap for reconstruction of a large thoracic limb wound spanning from axilla to carpus in a dog. This technique should be considered a viable limb-sparing, surgical option for resolution of extensive cutaneous thoracic limb wounds.
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Affiliation(s)
- Makayla Farrell
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
| | - Ameet Singh
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
| | - Philippe Larose
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
| | - Samantha Stine
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
| | - William Hawker
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
| | - Matthew Kornya
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1
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Lee GKC, Diamantino G, Hawker W, Wood RD. What is your diagnosis? Aspirate of a lymph node in a dog. Vet Clin Pathol 2021; 50:603-605. [PMID: 34327731 DOI: 10.1111/vcp.12991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/16/2020] [Accepted: 12/27/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Gary K C Lee
- Department of Pathobiology, University of Guelph, Guelph, ON, Canada
| | | | - William Hawker
- Department of Clinical Studies, University of Guelph, Guelph, ON, Canada
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Bao S, Hawker W, Vaughan J. Scandium Loading on Chelating and Solvent Impregnated Resin from Sulfate Solution. Solvent Extraction and Ion Exchange 2017. [DOI: 10.1080/07366299.2017.1412917] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Shenxu Bao
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China
| | - William Hawker
- School of Chemical Engineering, University of Queensland, Brisbane, Australia
| | - James Vaughan
- School of Chemical Engineering, University of Queensland, Brisbane, Australia
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