A rare case of repeated interventions for rheumatic mitral valve stenosis delaying mitral valve surgery – 41 year follow-up

Background. Atrial fibrillation surgical radiofrequency ablation (AFSA) during mitral valve surgery (MVS) has almost completely superseded the Cox-Maze procedure for the treatment of atrial fibrillation. Methods. We retrospectively analyzed 100 patients who underwent MVS + AFSA in our institution from January 2008 to June 2017. We compared the effectiveness of AFSA in patients who underwent LAA exclusion to those who did not. Moreover, we analyzed the role of preoperative AF duration (≤ or >1 year) and medial-lateral left atrial dimensions (ML-LAD) (≤ or >6 cm). The efficacy endpoint was freedom from AF at discharge and at 2-year follow-up. The safety endpoints were need of a permanent pacemaker (PMK), surgical re-exploration, occurrence of stroke, and left circumflex artery or esophageal lesions. Results. Overall, the rate of AF freedom was 69% at discharge and 80% at 2-year follow-up. LAA exclusion did not influence AF freedom at 2-year follow-up, and 84.6% of patients who underwent LAA exclusion were in the sinus rythm (SR) at 2 year compared to 75% of those who did not receive LAA exclusion free from AF as well ( p = 0.230 ). AF duration ≤1 or >1 year did not influence sinus rhythm (SR) maintenance (85.7% vs. 75.8%; p = 0.224 ), and in these two groups, LAA exclusion did not change the efficacy of AFSA. ML-LAD ≤ 6 cm was associated with better results in terms of SR maintenance. A statistically significant association between LAA exclusion and SR maintenance at 2-year follow-up ( p = 0.017 ) was found among patients with ML-LAD ≤ 6 cm. Complications included 7 cases of PMK implantation, 2 cases of surgical re-exploration, and 1 case of stroke. No circumflex artery or esophageal lesions occurred after surgical procedures. Conclusions. In our experience, AFSA during isolated MVS resulted in good outcomes in terms of SR maintenance and incidence of complications. AF duration ≤ 1 year did not influence results, while patients with ML-LAD ≤ 6 cm had significantly better results regarding SR at follow-up. In patients with ML-LAD ≤ 6 cm, LAA exclusion significantly increased the success rate of SR maintenance at 2-year follow-up.

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Surgical Management of Mitral Valve Disease

Advances in Medical Technologies and Clinical Practice - Modern Concepts and Practices in Cardiothoracic Critical Care ◽

10.4018/978-1-4666-8603-8.ch024 ◽

2015 ◽

pp. 713-727

Author(s):

Robin Varghese

Keyword(s):

Mitral Valve ◽

Surgical Management ◽

Mitral Valve Disease ◽

Surgical Techniques ◽

Mitral Valve Surgery ◽

Valve Surgery ◽

Valve Disease ◽

Mitral Valve Stenosis ◽

Complications Of Surgery ◽

Future Direction

Surgery for the mitral valve has increased over the last decade, with a focus on an increasing number of valve repairs for degenerative mitral valve disease. This chapter discusses the surgical management of mitral valve disease with a focus on the pathology of mitral valve stenosis and regurgitation. With an examination into the pathophysiology of the lesions. Subsequently a discussion regarding the various surgical techniques for mitral valve surgery followed by the major and minor complications of surgery are reviewed to provide the Intensivist with an overview of possible complications. Finally a look at the future direction of the field is briefly examined.

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The Use of Rapid Deployment Valves in Combined Aortic and Mitral Valve Surgery

Innovations Technology and Techniques in Cardiothoracic and Vascular Surgery ◽

10.1097/imi.0000000000000373 ◽

2017 ◽

Vol 12 (3) ◽

pp. 201-206 ◽

Cited By ~ 2

Author(s):

Markus Schlömicher ◽

Matthias Bechtel ◽

Zulfugar Taghiyev ◽

Yazan Al-Jabery ◽

Peter Lukas Haldenwang ◽

...

Keyword(s):

Mitral Valve ◽

Mitral Regurgitation ◽

Valve Replacement ◽

Mitral Valve Surgery ◽

Valve Surgery ◽

Valve Repair ◽

The Mean ◽

Mitral Disease ◽

Rapid Deployment

Objective Patients undergoing multiple valve surgery represent a high-risk group who could potentially benefit from a reduction of cross-clamp and cardiopulmonary bypass times because prolonged bypass and cross-clamp times are considered independent risk factors for increased morbidity and mortality after cardiac surgery. Methods Between July 2013 and November 2014, 16 patients underwent rapid deployment aortic valve replacement with the EDWARDS INTUITY valve system in the setting of concomitant mitral disease. Fifteen patients showed mitral regurgitation, whereas one patient had severe mitral stenosis. Fourteen patients received mitral valve repair and two patients received biological mitral valve replacement. Tricuspid valve repair was performed additionally in two patients. The mean ± SD age was 72.8 ± 8.4 years, and the mean ± SD logistic EuroSCORE II is 8.7% ± 3.4%. Results Within a 30-day perioperative period, no patient was lost (n = 0). The mean ± SD follow-up time was 11 ± 2 months. At 1 year, the overall survival was 81% (n = 13). A mean ± SD transaortic gradient of 10.7 ± 2.3 mm Hg and a mean ± SD effective orifice area of 1.7 ± 0.3 cm2 were measured echocardiographically. No higher-grade paravalvular leak (aortic insufficiency > 1+) occurred. Eight patients (61%) had no residual mitral regurgitation, four patients (30%) showed trivial regurgitation (1/4), and one patient (7.3%) had moderate mitral regurgitation (2/4). No interference of the subannular stent frame with the reconstructed valve or the biological mitral prosthesis was seen. Conclusions Rapid deployment aortic valve replacement with the EDWARDS INTUITY valve system in combined aortic and mitral valve surgery can be performed safely with reproducible results. One-year follow-up data of this small series shows encouraging results potentially justifying the extension of the indication for rapid deployment valves to patients with concomitant mitral disease. Especially elderly patients undergoing multiple valve surgery may benefit from a reduction of cardiopulmonary bypass and myocardial ischemic times.

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Spirometric Changes following Open-Heart Surgery on Rheumatic Mitral Valves

Asian Cardiovascular and Thoracic Annals ◽

10.1177/021849239800600106 ◽

1998 ◽

Vol 6 (1) ◽

pp. 28-33 ◽

Cited By ~ 2

Author(s):

Abha Chandra ◽

Shashi Srivastava ◽

Dronamraju Dilip

Keyword(s):

Mitral Valve ◽

Lung Function ◽

Vital Capacity ◽

Heart Surgery ◽

Open Heart Surgery ◽

Mitral Valve Surgery ◽

Valve Surgery ◽

Cardiothoracic Ratio ◽

The Mean

Evaluation of pulmonary function by spirometry in adult patients undergoing cardiac surgery is a simple test to assess pulmonary reserve that has important implications in the operative morbidity. Pulmonary function was studied preoperatively, before discharge, and at the 3-month follow-up in 22 randomly selected patients who underwent open-heart surgery for rheumatic mitral valve disease (2 reconstructions, 20 replacements). The mean preoperative cardiothoracic ratio was 0.58. Lung function was found to be impaired preoperatively in all 22 patients and the majority suffered from restrictive lung disease. Better preoperative lung function was seen in nonsmokers, patients with a cardiothoracic ratio of less than 0.50, and those with a normal pulmonary artery pressure. After mitral valve surgery, the mean pulmonary artery pressure was 20.6 ± 2.9 mm Hg, the mean mitral valve pressure gradient was 3.6 ± 2.4 mm Hg, and the mean cardiothoracic ratio was 0.52 ± 0.09. A significant deterioration was seen in the predischarge spirometric values of forced vital capacity, forced expiratory volume in one second, peak expiratory flow rate, flow rate at 25% to 75% of expired vital capacity, and maximum volume ventilation. The deterioration was greater in smokers and those who had prolonged cardiopulmonary bypass (more than 80 minutes). No correlation was found with ventilation because all patients were electively ventilated overnight. There was an overall improvement in spirometric parameters at the 3-month follow-up although the values remained lower than predicted. Spirometry was found to be useful for assessing lung function in patients undergoing mitral valve surgery and we recommended it as a routine test.

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