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Changes in Temperature Following Radiofrequency Thermal Ablation of the Nucleus Pulposus and Annulus Fibrosus: A Cadaveric Study.
Pain Physician
October 2022
Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
Background: Various minimally invasive procedures for treating discogenic pain have been reported in recent years. A Disc-FX® system can be used to perform nucleus pulposus (NP) removal, radiofrequency ablation, and annuloplasty under the guidance of x-ray fluoroscopy. However, when a probe tip with focused heat is placed on the intradiscal/subannular area to perform nucleo-annuloplasty using radiofrequency lesioning, thermal injury to the spinal cord or spinal nerves is a concern.
View Article and Find Full Text PDFInterlay Myringoplasty With Anterior Subannular Grafting Technique for Anterior and Subtotal Perforations.
Otol Neurotol
July 2020
Kawano Ear, Nose & Throat Surgi Clinic, Cyuoku, Fukuoka, Japan.
Objective: To describe the interlay myringoplasty with anterior subannular grafting technique and evaluate postoperative hearing and complications of this technique.
Study Design: Retrospective chart review.
Patients: We included 141 patients with anterior and subtotal tympanic membrane (TM) perforation.
Aorta-atria-septum combined incision for aortic valve re-replacement.
J Thorac Dis
April 2018
Department of Cardiac Surgery, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
This case report illustrates a patient who underwent supra-annular mechanical aortic valve replacement then suffered from prosthesis dysfunction, increasing pressure gradient with aortic valve. She was successfully underwent aortic valve re-replacement, sub-annular pannus removing and aortic annulus enlargement procedures through combined cardiac incision passing through aortic root, right atrium (RA), and upper atrial septum. This incision provides optimal visual operative field and simplifies dissection.
View Article and Find Full Text PDFOn-pump transapical cardioscopic mitral valve replacement with cardiac arrest: short-term results in a porcine survival model.
Interact Cardiovasc Thorac Surg
September 2018
Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
Objectives: Favourable outcomes with mitral annuloplasty have been achieved with transapical cardioscopic (TAC) surgery in a survival animal model. In addition, experimental TAC on a non-survival animal model also showed adequate access to remove the native mitral valve and implant a prosthetic valve, but the surgical procedure took a long time and lacked follow-up data. The goal of this study was to develop a clinically translatable TAC mitral valve replacement (MVR) procedure using technical and instrumental refinements to reduce the surgical time and to evaluate functional recovery and short-term durability using a survival porcine model.
View Article and Find Full Text PDFCombination of Transforaminal and Interlaminar Percutaneous Endoscopic Lumbar Diskectomy for Extensive Down-migrated Disk Herniation.
J Neurol Surg A Cent Eur Neurosurg
January 2018
Department of Neurosurgery, the Leon Wiltse Memorial Hospital, Suwon, Korea.
Background And Study Aims: The technique and instrumentation of percutaneous endoscopic lumbar diskectomy (PELD) have significantly improved. Thus its indications have been gradually expanding. Down-migrated disk, in particular, is regarded inaccessible by rigid instrumentation due to poor visualization and limited accessibility.
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