Background and Aims: Tranexamic acid has been used to decrease blood loss volumes and the subsequent need for blood transfusion in the orthopedic, spinal and cardiac surgeries. Methods: In this prospective controlled randomized clinical trial study, 24 candidates for orthognathic surgeries received tranexamic acid (20 mg/kg) intravenously just before the surgery while matched control patients r...

We classify Dehn surgeries on (p, q, r) pretzel knots that result in a manifold of finite fundamental group. The only hyperbolic pretzel knots that admit non-trivial finite surgeries are (−2, 3, 7) and (−2, 3, 9). Agol and Lackenby’s 6-theorem reduces the argument to knots with small indices p, q, r. We treat these using the Culler-Shalen norm of the SL(2, C)-character variety. In particular, w...

Let Y be a closed three-manifold with trivial first homology, and let K ⊂ Y be a knot. We give a description of the Heegaard Floer homology of integer surgeries on Y along K in terms of the filtered homotopy type of the knot invariant for K. As an illustration of these techniques, we calculate the Heegaard Floer homology groups of non-trivial circle bundles over Riemann surfaces (with coefficie...

Received March 28, 2013. Accepted April 18, 2013. Correspondence to: Mohamed Amin Ghobadifar, MD Department of Student Research Committee, Medicine School, Jahrom University of Medical Sciences, Motahari Avenue, Jahrom, Iran Tel: +98-936-620-8078, Fax: +98-711-636-13-86, E-mail: [email protected] This is an open-access article distributed under the terms of the Creative Commons Attribution No...

Using the mapping cone of a rational surgery, we give several obstructions for Seifert fibered surgeries, including obstructions on the Alexander polynomial, the knot Floer homology, the surgery coefficient and the Seifert and four-ball genus of the knot. These generalize the corresponding results in [9][21].

The results of upper airway surgeries vary with specific disorders and treatments. The descriptions of various surgeries for obstructive lesions and what is currently known about their outcome present equine practitioners with information that can be used for the appropriate selection of surgical candidates. Authors’ address: D-202 Veterinary Medical Center, Michigan State University, East Lans...

We prove a uniform Sobolev inequality for Ricci flow, which is independent of the number of surgeries. As an application, under less assumptions, a non-collapsing result stronger than Perelman’s κ non-collapsing with surgery is derived. The proof is shorter and seems more accessible. The result also improves some earlier ones where the Sobolev inequality depended on the number of surgeries.

the prevalence of bariatric surgery procedures has increased dramatically in recent years and multiple specialties encounter bariatric patients. in this article, we outline the different options in bariatric surgery and summarized the recommendations for gastrointestinal assessment of candidates before and after bariatric surgery. the role of routine endoscopy was controversial in pre surgical ...

laparoscopic technique in recent years has tremendously being used as a non invasive surgery to perform different operation in abdominal and thoracic cavities. this technique has been used from 1987 in different aspect of human surgery. in addition to diagnosis, biopsy, visualizing adhesion and neoplastic structure, recently cholecystectomy and ovariohysterectomy were also commonly being used a...

Numerous foreign bodies, such as surgical gauze, pads and instruments, and other items, have been left behind in the abdominal cavity during open surgeries. These have been traditionally removed at redo open surgeries. Here we describe a case of an artery forceps left behind at a previous surgery (open cholecystectomy and appendicectomy) performed 5 years earlier that was removed by laparoscopy.