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Carbomedics Valve

Said Alsidawi, David L Joyce, Joseph F Malouf, Vuyisile T Nkomo
A 62-year-old female with severe symptomatic rheumatic mitral stenosis was referred for mitral valve replacement. A 27-mm Carbomedics mechanical mitral valve was placed using everting sutures. As the patient was weaned off cardiopulmonary bypass, she became hemodynamically unstable. Intraoperative transesophageal echocardiogram revealed a significant drop in left ventricular function along with severe LVOT obstruction. The Carbomedics prosthesis was replaced by a 27-mm St. Jude mechanical valve using noneverting sutures which relieved the LVOT obstruction...
June 2016: Journal of Cardiac Surgery
Alireza Alizadeh-Ghavidel, Rasoul Azarfarin, Azin Alizadehasl, Ali Sadeghpour-Tabaei, Ziae Totonchi
BACKGROUND: Patient-prosthesis mismatch (PPM) after aortic valve replacement (AVR) is the subject of continuing debate in the cardiac surgery field. OBJECTIVES: The aim of this study was to evaluate the frequency and severity of patient-prosthesis mismatch (PPM) and the functional status of patients undergoing aortic valve replacement (AVR) using a CarboMedics prosthesis in the mid-term follow up. PATIENTS AND METHODS: We retrospectively studied 66 consecutive patients who were referred to AVR with a CarboMedics prosthesis at the Rajaie cardiovascular medical and research center, a university referral hospital in Tehran, Iran...
May 2016: Research in Cardiovascular Medicine
Feridoun Sabzi, Siavoosh Vaziri, Reza Faraji
We report the case of a 26-year-old male patient with 2-week history of Brucella aortic valve endocarditis that was referred from general hospital to our hospital emergency room with pallor of the skin and mucous membranes accompanied by systemic hypotension and chest pain. Trans esophageal echocardiography (TEE) revealed a 30-mm ascending aorta at the pulmonary trunk with no evidence of the false lumen or intimal flap. TEE also showed a large vegetation of the aortic valve that limited to noncoronary sinus with moderate pericardial effusion...
2015: Journal of Cardiovascular and Thoracic Research
Young Joo Suh, Young Jin Kim, Sak Lee, Yoo Jin Hong, Hye-Jeong Lee, Jin Hur, Byoung Wook Choi, Byung-Chul Chang
The clinical significance of pannus detected on computed tomography (CT) has not yet been investigated. The purposes of this study were to investigate the clinical significance of pannus detected on cardiac CT in patients who underwent aortic valve replacement (AVR) with mechanical valves, and to determine predictors for pannus severity. A total of 92 patients who underwent cardiac CT and TTE and who had undergone mechanical AVR were included. The geometric orifice area (GOA), the presence of limitation of motion (LOM) and pannus were evaluated on CT...
August 2015: International Journal of Cardiovascular Imaging
Lianhe Wu, Qing Chang, Tianyi Wang, Zhengsheng Zhang, Yanmeng Lou
OBJECTIVE: The objective of this study was to evaluate the safety and efficacy of low-intensity warfarin treatment in Chinese patients after mitral valve replacement as well as the rationality of the INR standards of the hospital (The First People's Hospital of Jining City). METHODS: We retrospectively analyzed 270 cases in our hospital from January 2009 to December 2013; 239 patients completed the 5-year follow-up. There were 192 male and 78 female subjects, age 32-65 years old with a mean age 51...
2015: Heart Surgery Forum
Peter Johansen, Tina S Andersen, J Michael Hasenkam, Hans Nygaard, Peter K Paulsen
Today, the quality of mechanical heart valves is quite high, and implantation has become a routine clinical procedure with a low operative mortality (< 5%). However, patients still face the risks of blood cell damage, thromboembolic events, and material failure of the prosthetic device. One mechanism found to be a possible contributor to these adverse effects is cavitation. In vitro, cavitation has been directly demonstrated by visualization and indirectly in vivo by registering of high frequency pressure fluctuations (HFPF)...
2014: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Raffaele Giordano, Massimiliano Cantinotti, Vitali Pak, Luigi Arcieri, Vincenzo Poli, Nadia Assanta, Riccardo Moschetti, Bruno Murzi
OBJECTIVE: Mitral valve replacement (MVR) is a surgical option when mitral valvuloplasty is not feasible/successful. This study reviews our experience with MVR in very young children. METHODS: From July 2004 to January 2014, seven children (mean age 13.3 ± 11.2 months; range 4 months to 35 months; mean body weight 6.0 ± 2.2 kg) underwent MVR with a mechanical prosthesis in the supra-annular position. To provide better exposure in the left atrium, we performed in all but one case a biatrial transeptal incision according to Guiraudon...
February 2015: Journal of Cardiac Surgery
É R Charchian, S A Abugov, A A Skvortsov, V V Khovrin, S V Fedulova
Presented herein is a clinical case report concerning successive use of hybrid technology in secondary surgical treatment of a patient with a progressing aortic arch aneurysm and aortic insufficiency, type A chronic aortic dissection after the primary operation of plasty of the aortic valve with prosthetic repair of the ascending aortic portion for type A acute dissection. The patient underwent hybrid operation: prosthetic repair of the aortic valve with mechanical prosthesis "Carbomedics", prosthetic repair of brachiocephalic branches by means of synthetic prostheses "Vascutek" with their switching to the prosthesis of the ascending aorta, stenting of the arch and descending portion of the aorta...
2014: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
Z Xu, Z P Wang, J S Ou, S L Yin, L J Liu, X Zhang
AIM: For the mitral valve replacement(MVR) patients using the lowest thrombogenic risk bileaflet valves (St. Jude Medical, Carbomedics and On-X Prosthetic Heart Valve), excellent results can be achieved by adopting the anticoagulation intensity(median INR<2.5)which is lower than the recommended intensity(INR:2.5~3.5). Our aim was to provide a pooled estimate of potential benefit from clinical studies using low anticoagulation intensity and high intensity in these patients. METHODS: Relevant studies published before Feb...
October 17, 2014: Journal of Cardiovascular Surgery
Victor X Mosquera, Alberto Bouzas-Mosquera, Victor Bautista-Hernandez, Francisco Estévez-Cid, José M Herrera-Noreña, Nemesio Alvarez-García, José J Cuenca-Castillo
OBJECTIVE: The present study aimed to identify potential differences in hemodynamic performance between the supra-annular CarboMedics Top Hat valve and the intra-annular CarboMedics standard valve in terms of the long-term left ventricular mass reduction and transvalvular gradients. METHODS: We retrospectively reviewed a series of 186 consecutive patients who had undergone aortic valve replacement with a small size mechanical prosthesis at our institution from 2003 to 2013, receiving either a CarboMedics Top Hat valve (53 patients, valve size, 21 mm in 52...
December 2014: Journal of Thoracic and Cardiovascular Surgery
Eshan L Senanayake, Neil J Howell, Domenico Pagano, Daniel Ray, Jorge Mascaro, Stephen J Rooney, Ian C Wilson, Tim R Graham
AIM: Late failure of bioprosthetic valves may limit their use in patients < 60 years. The superior hemodynamic performance offered by the Carbomedics Top Hat supraannular valve enables greater effective orifice areas to be achieved. The aim of this study was to assess the clinical outcomes of this valve, using a robust follow-up system. METHODS: Patients who underwent aortic valve replacement with or without coronary artery bypass grafting between July 1997 and January 2010 with Carbomedics supraannular Top Hat valves were identified...
January 2015: Asian Cardiovascular & Thoracic Annals
Dominika Suchá, Petr Symersky, Evert-Jan P A Vonken, Esther Provoost, Steven A J Chamuleau, Ricardo P J Budde
PURPOSE: The purpose of this study was to compare multidetector-row computed tomography (MDCT) leaflet restriction measurements with fluoroscopy measurements in commonly used mechanical prosthetic heart valves (PHVs). METHODS: Four mechanical PHVs (ON-X, Carbomedics, St. Jude, and Medtronic Hall) were imaged in a pulsatile model using fluoroscopy and 64-detector-row computed tomography. Five image acquisitions of each PHV without (1) and with (4) restricted leaflet closure were made...
May 2014: Journal of Computer Assisted Tomography
Satoshi Miyairi, Masaaki Koide, Yoshifumi Kunii, Kazumasa Tsuda, Yuko Ohashi, Takashi Harada
Despite improvements in bioprosthetic valve function, increased human life-expectancy has led to a growing number of bioprosthetic valve deterioration cases requiring reoperation. We report 2 cases of primary tissue failure of a bioprosthetic valve, which were treated by mitral valve replacement using the valve-on-valve method. The reasons for the reoperations were a severely calcified valve annulus, and severe adhesion of a previous bioprosthetic valve. We removed only the leaflets of the bioprosthetic valve and sutured a Carbomedics OptiForm valve onto the sewing cuff of the previous bioprosthesis...
July 2015: Asian Cardiovascular & Thoracic Annals
Denis Bouchard, Amine Mazine, Louis-Mathieu Stevens, Michel Pellerin, Raymond Cartier, Philippe Demers, Yves Hébert, Louis P Perrault, Michel Carrier, Jean Lambert
BACKGROUND: The CarboMedics mechanical prosthesis (CarboMedics Inc, Austin, TX) has been used for mitral and aortic valve replacement for more than 20 years in our institution. This study describes the long-term survival of patients with this prosthesis as well as the valve-related events. METHODS: Between June 1988 and May 2010, 3,297 patients underwent either single aortic valve replacement (AVR) (2,242 patients) or mitral valve replacement (MVR) (1,055 patients) with the CarboMedics mechanical valve prosthesis...
March 2014: Annals of Thoracic Surgery
Takahiro Nishida, Hiromichi Sonoda, Yasuhisa Oishi, Yoshihisa Tanoue, Atsuhiro Nakashima, Yuichi Shiokawa, Ryuji Tominaga
OBJECTIVES: The long-term (>20 years) results for CarboMedics mechanical valves (Sorin Group, Milano, Italy) used for both primary surgery and reoperation have never been reported or compared. METHODS: Since 1990, a total of 787 CarboMedics valves have been implanted in 694 patients for aortic valve replacement, including 19 redo cases in 220 patients; for mitral valve replacement, including 108 redo cases in 381 patents; and for double (aortic and mitral) valve replacement, including 29 redo cases in 93 patients...
May 2014: Journal of Thoracic and Cardiovascular Surgery
Thierry Bourguignon, Eric Bergöend, Alain Mirza, Grégoire Ayegnon, Paul Neville, Michel R Aupart, Michel Marchand
BACKGROUND AND AIM OF THE STUDY: Currently, valve thrombosis, thromboembolic events and bleeding events account for 75% of all complications that occur after mechanical heart valve replacement. The study aim was to determine the main risk factors for valve-related complications in patients undergoing mechanical heart valve replacement. METHODS: Data were available from the systematic follow up of patients who had received a CarboMedics bileaflet mechanical heart valve replacement at the authors' institution...
November 2011: Journal of Heart Valve Disease
Hiroshi Sugiki, Suguru Kubota, Yoshiro Matsui, Kenji Sugiki
We previously reported our development of a wavelet analysis system which demonstrates that in vivo bileaflet mechanical valve sound splits into two spikes at higher frequency levels and, based on this system, proposed criteria for detecting malfunctioning bileaflet valves (MBVs). However, the results of that study were only tentative due to the small number of patients with MBVs enrolled in the study. Here, we discuss the possibility of new criteria based on the scalographic properties of two spikes of bileaflet valve sound...
December 2012: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Guido J Van Nooten, Frank Caes, Katrien François, Yves Van Bellleghem, Thierry Bové, Guy Vandenplas, Yves Taeymans
BACKGROUND AND AIM OF THE STUDY: Since January 1990, a variety of mechanical valves (St. Jude Medical, CarboMedics, ATS Medical) have been implanted routinely at the authors' institution. The study aim was to analyze, retrospectively, the 20-year clinical results of those mechanical valves, and to challenge the anticoagulation policy employed over the years. METHODS: Between January 1990 and December 2008, a total of 2,108 mechanical valves was inserted into 1,887 consecutive patients (1,346 aortic, 725 mitral, 27 tricuspid, 10 pulmonary)...
January 2012: Journal of Heart Valve Disease
B Min Yun, Jingshu Wu, Helene A Simon, Shiva Arjunon, Fotis Sotiropoulos, Cyrus K Aidun, Ajit P Yoganathan
Previous experimental and numerical blood studies have shown that high shear stress levels, long exposure times to these shear stresses, and flow recirculation promote thromboembolism. Artificial heart valves, in particular bileaflet mechanical heart valves (BMHVs), are prone to developing thromboembolic complications. These complications often form at the hinge regions of BMHVs and the associated geometry has been shown to affect the local flow dynamics and the associated thrombus formation. However, to date no study has focused on simulating the motion of realistically modeled blood elements within the hinge region to numerically estimate the hinge-related blood damage...
July 2012: Annals of Biomedical Engineering
Edmund Kenneth Kerut, Curtis Hanawalt, Charles Everson, Frederick Kushner
No abstract text is available yet for this article.
April 2012: Echocardiography
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