Objective: The midterm durability of bovine jugular veins (BJV) in children is comparable to that of homografts. We present the results of 64 bovine jugular vein implantations in adults in a pulmonary position.
Methods: Between August 2003 and July 2008, 60 patients (aged 18 to 65 years) received 64 BJVs. 97 % of them had had previous reconstructions of the right ventricular outflow tract. Diagnoses for treatment included tetralogy of Fallot (n = 49 patients), other congenital malformations (n = 14), and Ross operation (n = 1). Four bovine jugular veins had a diameter of 20 mm, the others had a diameter of 22 mm.
Results: Survival after 5 years was 98.4 +/- 1.6 %. Freedom from endocarditis: 84.8 +/- 8.0 % (4 patients required explantation for endocarditis); freedom from explantation for structural valve degeneration: 96.2 +/- 2.6 % (2 patients required explantation); freedom from intervention: 93.2 +/- 2.8 % (3 patients required intervention); moderate insufficiency: 62.9 +/- 15.1 % (8 patients); gradient > or = 50 mmHg: 79.6 +/- 7.4 % (7 patients); degeneration: 56.4 +/- 12.9 % (11); any adverse event: 43.1 +/- 12.8 % (15 patients); calcification or aneurysmal dilatation: 100 %. At any postoperative interval, more than 75 % of the BJVs had neither been explanted nor were they degenerated.
Conclusion: The BJV might be a promising alternative to homografts, also in adults. Strict antibiotic prophylaxis is mandatory. A prospective randomized multicenter comparison of homografts and BJVs would help to identify the preferable conduit.
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http://dx.doi.org/10.1055/s-0029-1185394 | DOI Listing |
Ann Thorac Surg Short Rep
September 2024
Department of Cardiovascular and Thoracic Surgery, University of Texas Southwestern Medical Center and Children's Medical Center, Dallas, Texas.
Background: In small children with left atrioventricular valve dysfunction, valve repair is preferred but some will require valve replacement. No prosthetic valve has growth potential, bioprostheses have poor durability, and mechanical prostheses have high rates of thromboembolic and hemorrhagic complications. We reviewed our experience with a modified bovine jugular vein valve designed for use in the right ventricular outflow tract (Melody valve, Medtronic) and compared this with contemporary mechanical valve replacement.
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December 2024
Division of Vascular Surgery, Department of Surgery, Seoul National University College of Medicine, Seoul, Korea.
Major vessel invasion, particularly involving the portal and superior mesenteric veins, poses significant challenges during the radical resection of hepatobiliary and pancreatic cancers. Oncovascular surgery is essential for curative outcomes, and often requires portomesenteric vein reconstruction. Techniques, such as lateral venorrhaphy, patch repair, end-to-end anastomosis, and interposition grafting, have been employed.
View Article and Find Full Text PDFJ Dairy Sci
January 2025
The Pennsylvania State University, University Park, PA 16802. Electronic address:
The objective of this experiment was to estimate the bioavailability (BA) of rumen-protected (RP) His, RPLys, and 2 RPMet products using 3 in vivo methods: area under the curve (AUC), plasma dose-response (PDR), and fecal free AA (FFAA) methods. We used 8 rumen-cannulated cows in a replicated 4 × 4 Latin square experiment with 16-d periods. Treatments were (1) abomasal infusion of water (control), (2) abomasal infusion of free His, Lys, and Met (FAA), (3) administration of RPHis + RPLys + RPMet1 (rumen-protected methionine protected with ethyl cellulose; RPAA1), and (4) administration of RPHis + RPLys + RPMet2 (rumen-protected methionine protected with a pH-sensitive polymer; RPAA2).
View Article and Find Full Text PDFMultimed Man Cardiothorac Surg
November 2024
LMU University Hospital, Munich, Germany German Heart Center Munich, Munich, Germany European Children's Heart Center EKHZ, Munich, Germany.
A male neonate (2.5 kg) who presented with an interrupted aortic arch type C, hypoplasia of the aortic valve and left ventricular outflow tract obstruction received bilateral pulmonary artery bands as a first step of a hybrid interim palliation. Due to an intimal tissue flap at the origin of the left common carotid artery and a high-risk situation for PDA stenting, a complete early correction was undertaken.
View Article and Find Full Text PDFJ Anim Sci
January 2024
Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Fetal infection with bovine viral diarrhea virus (BVDV) after 150 d results in transient fetal infections (TI). Twenty-five unvaccinated, yearling Hereford heifers, seronegative for antibodies to BVDV1 and BVDV2, were bred by artificial insemination with X chromosome-bearing sperm from 1 Angus sire to examine the impact of TI on postnatal growth, estimated dry matter digestibility, blood parameters, and carcass characteristics. On day 175 of pregnancy, dams were intranasally inoculated with either sham control or 4.
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