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Sam Maghami, Mehrdad Ghoreishi, Nathaniel Foster, Murtaza Y Dawood, Gerald R Hobbs, Patrick Stafford, Dhruv Adawal, Isa Mohammed, Eddy D Zandee van Rilland, Xavier Y Diao, Mary Walterhoefer, Bradley S Taylor, Bartley P Griffith, James S Gammie
BACKGROUND: Previous clinical experiences have demonstrated high early and late recurrence rates after repair of functional tricuspid regurgitation (TR). We investigated the results of functional TR repair with undersized rigid nonplanar annuloplasty rings. METHODS: From January 2007 to December 2013, 216 consecutive patients with moderate or greater functional TR were treated with undersized (size 26 mm or 28 mm) rigid nonplanar annuloplasty rings. RESULTS: The mean age was 69 ± 13 years...
September 2016: Annals of Thoracic Surgery
Xiaobing Li, Limimg Liu, Long Song, Cheng Luo, Benli Yang, Yuhong Liu
OBJECTIVE: To summarize the clinical data of patients who experienced cryoablation in minimally invasive mitral valve surgery and to explore safety and effectiveness of the surgery.
 METHODS: We retrospectively collected the clinical data of patients who experienced cryoablation in minimally invasive mitral valve surgery in Department of Cardiovascular of Second Xiangya Hospital from August 2013 to July 2015. Through a right side (4-6 cm) thoracotomy, femoral cannulation and aortic cross-clamp by Chitwood clamper was performed, left atrium was entered from interatrial groove...
March 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
Javier Gualis, Mario Castaño, Jose Manuel Martínez-Comendador, Jose Miguel Marcos, Carlos Martín, Rodrigo Estévez-Loureiro, Jesús Gómez-Plana, Elio Martín, Javier Otero
UNLABELLED: The long-term results of cryomaze in patients with longstanding persistent atrial fibrillation during concomitant surgical procedures are still uncertain. METHODS: Between 2006 and 2011, 150 consecutive patients with associated long-lasting permanent atrial fibrillation and associated heart disease underwent heart surgery were treated by biatrial Cox-Maze (63 patients) or by isolated endocardial or epicardial left atrial cryoablation (83 patients) concomitantly...
April 2016: Archivos de Cardiología de México
Martin Eisenberger, Alan Bulava, Ales Mokracek, Jiri Hanis, Vojtech Kurfirst, Ladislav Dusek
BACKGROUND: The aim of the study was to evaluate whether the sequential hybrid approach combining surgical CryoMaze followed by the radiofrequency (RF) catheter ablation can improve freedom from atrial arrhythmias. METHODS: Thirty-five patients with persistent atrial fibrillation underwent a CryoMaze procedure in conjunction with cardiac surgery for structural heart disease. Three months after surgery, all patients underwent a 7-day electrocardiogram Holter followed by an electrophysiological study and mapping of the left and right atria...
December 2015: Pacing and Clinical Electrophysiology: PACE
Eung Re Kim, Cheong Lim, Dong Jin Kim, Jun Sung Kim, Kay Hyun Park
BACKGROUND: We report our initial experiences of robot-assisted cardiac surgery using the da Vinci Surgical System. METHODS: Between February 2010 and March 2014, 50 consecutive patients underwent minimally invasive robot-assisted cardiac surgery. RESULTS: Robot-assisted cardiac surgery was employed in two cases of minimally invasive direct coronary artery bypass, 17 cases of mitral valve repair, 10 cases of cardiac myxoma removal, 20 cases of atrial septal defect repair, and one isolated CryoMaze procedure...
April 2015: Korean Journal of Thoracic and Cardiovascular Surgery
Shunsuke Sato, Tomoyuki Fujita, Yusuke Shimahara, Hiroki Hata, Junjiro Kobayashi
BACKGROUND: This study investigated the impact of prosthesis-patient mismatch (PPM) after mitral valve replacement (MVR) with cryoablation using a maze procedure. METHODS AND RESULTS: We evaluated 142 patients who underwent MVR with a cryomaze procedure. Echocardiography was performed at 1 week and at 1, 3, 5, 7, and 10 years. An effective orifice area index of 1.2 cm(2)/m(2)was used to define PPM. Mean transmitral pressure gradient (mean MPG) >5 mmHg was defined as high...
2014: Circulation Journal: Official Journal of the Japanese Circulation Society
A Claire Watkins, Cindi A Young, Mehrdad Ghoreishi, Stephen R Shorofsky, Joel Gabre, Murtaza Y Dawood, Bartley P Griffith, James S Gammie
BACKGROUND: Only 40% of patients with atrial fibrillation (AF) undergoing cardiac surgery are treated with surgical AF correction. We prospectively studied endocardial cryoablation of the Cox-maze III lesion set following prespecified rhythm assessment with outpatient telemetry. METHODS: Between 2007 and 2011, 136 patients underwent surgical AF correction using an argon-powered cryoablation device. Patients wore continuous electrocardiogram monitoring prior to and at 6, 12, and 24 months after surgery...
April 2014: Annals of Thoracic Surgery
Faisal H Cheema, Muhammad J Younus, Arham Pasha, James L Cox, Harold G Roberts
Reluctance to perform biatrial Cox-cryomaze is primarily to avoid the vexation of creating a right-atrial-lesion (RAL) set of Cox-Maze-III. An alternative pattern of RAL set includes (i) a horizontal atriotomy, continued medially as a linear cryolesion across the posterior tricuspid annulus, (ii) a cavocaval lesion, and (iii) a lateral cryolesion from the midportion of the atriotomy to the tip of the right atrial appendage (RAA). This latter lesion is a substitute for a cryolesion that, in past, was directed medially by a stab wound in the tip of the RAA to the anterior tricuspid annulus...
July 2013: Annals of Thoracic Surgery
Faisal H Cheema, Mohammad B Pervez, Mansoor Mehmood, Muhammad J Younus, Mohammad B Munir, Gianluigi Bisleri, Fabio Barili, Ivan L Ayala, Niv Ad, James L Cox, Harold G Roberts
OBJECTIVE: Ensuring the transmurality of the mitral isthmus lesion, a critical component of the cryomaze, entails mirror-image application of the cryoprobe both on endocardial and epicardial surfaces when carrying out ablation. Concerns of circumflex artery injury have been expressed during the epicardial application of the cryoprobe over the coronary sinus as the artery courses on the posterior surface of the sinus in the atrioventricular (AV) groove. The objective of this study was to analyze the incidence of significant injury to the circumflex artery and its impact on outcomes, if any, in those patients who have undergone cryomaze...
January 2013: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Tatjana Fleck, Martin Dworschak, Wilfried Wisser
The case of a 63-year-old woman who underwent minimal invasive mitral and tricuspid valve repair and a concomitant CryoMaze is described. During creation of the last lesion of the right-sided maze procedure, dissection of the ascending aorta occurred that necessitated emergency sternotomy, replacement of the ascending aorta, and aortocoronary bypass grafting to the right coronary artery (RCA) because of detachment of the RCA from the aortic annulus. Repair of this complication was successful; nevertheless, the patient died 5 days after the operation because of multiorgan failure...
September 2012: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
L Wiley Nifong, Evelio Rodriguez, W Randolph Chitwood
BACKGROUND: The first complete robotic mitral valve repairs (RMVP) and RMVP with CryoMaze (RMVP+C) were done in the United States in May 2000 and October 2003, respectively. We have previously reported our initial 300 isolated RMVPs. Our current study evaluates our consecutive RMVP series, including patients undergoing concomitant atrial fibrillation (AF) cryoablation. METHODS: Between May 2000 and April 2010, patients with symptomatic, nonischemic, moderate to severe mitral insufficiency with or without AF were studied...
July 2012: Annals of Thoracic Surgery
Eric J Lehr, Evelio Rodriguez, Louis-Mathieu Stevens, L Wiley Nifong, W Randolph Chitwood
Atrioventricular nodal reentrant tachycardias typically arise from the existence of variable refractoriness in fast and slow conduction pathways within the triangle of Koch, which provide input to the atrioventricular node. Standard therapy includes medical management and catheter-based ablation procedures. Robotic-assisted, minimally invasive cryosurgical modification of the atrioventricular node can provide definitive therapy for patients who fail traditional therapy. A 65-year-old man presented with a several-year history of recurrent atrioventricular nodal reentrant tachycardia...
March 2011: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Edmund Kenneth Kerut, James McKinnie, John P Reilly, Curtis Hanawalt, Charles T Everson
No abstract text is available yet for this article.
August 2011: Echocardiography
Mehrdad Ghoreishi, Jamie M Brown, Craig E Stauffer, Cindi A Young, Mary J Byron, Bartley P Griffith, James S Gammie
BACKGROUND: In contrast to mitral valve repair, residual and recurrent regurgitation after tricuspid valve (TV) repair for functional tricuspid regurgitation (TR) is common. We have systematically used undersized, rigid 3-dimensional annuloplasty rings to treat functional TR. METHODS: From March 2006 to October 2009, 101 consecutive patients with moderate or greater functional TR underwent TV repair with an undersized rigid 3-dimensional annuloplasty ring. All patients had a predischarge echocardiography evaluation in a core echocardiography laboratory...
July 2011: Annals of Thoracic Surgery
Robert P Gallegos, Andrew L Rivard, Taufiek K Rajab, B Chir, Jan D Schmitto, Matthew T Lahti, Nicole Kirchhof, Richard W Bianco
BACKGROUND: The CryoMaze procedure is usually limited to endocardial ablation under cardio-pulmonary bypass. Epicardial ablation is considered inferior as endocardial islets of atrial tissue could theoretically remain viable, protected from cryoinjury by epicardial fat and endocardial circulating warm blood. Novel argon-powered cryoprobes with lower ablation temperatures have recently become available. It is unclear if these instruments can reliably induce transmural atrial fibrosis by epicardial cryoablation on the beating heart...
March 2011: Journal of Cardiac Surgery
Xu Liu, Hong-Wei Tan, Xin-Hua Wang, Hai-Feng Shi, Ying-Ze Li, Feng Li, Li Zhou, Jia-Ning Gu
AIMS: Catheter ablation and surgical Maze procedure are effective in treating atrial fibrillation (AF) patients. However, there is no study that compares the effect of circumferential pulmonary vein isolation (CPVI) combined with substrate ablation after valvular surgery and the concomitant Maze procedure for the treatment of AF in patients with rheumatic heart disease (RHD). The aim of this study was to compare the effectiveness of CPVI combined with substrate modification and surgical Maze procedure using Saline-Irrigated Cooled-tip Radiofrequency Ablation (SICTRA) system for the treatment of long-lasting persistent AF in patients with RHD...
November 2010: European Heart Journal
Mariann Tang, Kaj-Erik Klaaborg, Henrik Egeblad, Henning Mølgaard, Steen Hvidtfeldt Poulsen, Morten Smerup, Per Wierup
INTRODUCTION: We have experienced a growing demand from patients for minimally invasive cardiac surgery. MATERIAL AND METHODS: From March 2006 through November 2007 we performed endoscopic mitral valve surgery in 30 patients (20 mitral valve repairs, eight mitral valve replacements and two extirpations of mitral valve fibroelstoma). Seven patients had concomitant surgery, including cryomaze to eliminate atrial fibrillation and/or closure of an atrial septal defect (ASD)...
April 6, 2009: Ugeskrift for Laeger
Toshihiro Funatsu, Junjiro Kobayashi, Hiroyuki Nakajima, Yutaka Iba, Yusuke Shimahara, Toshikatsu Yagihara
OBJECTIVE: Atrial fibrillation (AF) is the common arrhythmia associated with valvular heart disease, and surgical ablation to treat AF is reported to contribute to eliminate mortality and morbidity. We report our clinical results of cryomaze procedure obtained in over 10-years' experience. METHOD: Since 1998 when we introduced cryoablation to reduce cut-and-sew line, 268 patients (145 males and 123 females, mean age of 61.2-year old) underwent cryomaze procedure concomitant with mitral valve surgery...
August 2009: European Journal of Cardio-thoracic Surgery
James S Gammie, Parijat Didolkar, Leandra S Krowsoski, Mary J Santos, Ann J Toran, Cindi A Young, Bartley P Griffith, Stephen R Shorofsky, Thomas J Vander Salm
BACKGROUND: Few studies have reported long-term outcomes of surgical atrial fibrillation (AF) correction. We perform the Cox-Maze III lesion set with argon-powered cryoenergy (CryoMaze procedure) on all patients with AF presenting for cardiac operations. This study reports long-term clinical results and heart rhythm status. METHODS: Between July 2002 and November 2005, 119 consecutive patients underwent surgical AF correction with the CryoMaze procedure. Mitral valve disease was the primary indication for operation in 66%...
May 2009: Annals of Thoracic Surgery
Faisal H Cheema, Jeffrey S Weisberg, Imran Khalid, Harold G Roberts
With recent technological advancements, an increasing number of minimally invasive approaches are being explored as potential alternatives to the traditional cut-and-sew Cox maze III for treating atrial fibrillation. We describe an approach for treating atrial fibrillation that consists of a warm beating heart, robotic endoscopic Cox-cryomaze with a full set of left atrial argon-based cryolesions.
March 2009: Annals of Thoracic Surgery
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