scholarly journals Evaluation of right ventricular pressure-volume relationships in secondary tricuspid regurgitation and long-term results of tricupid annuloplasty.

1988 ◽  
Vol 18 (2) ◽  
pp. 209-211
Author(s):  
S. Nakano
Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Juan Chachques ◽  
Thomas Lavergne ◽  
Robert Frank ◽  
Francoise Hidden-Lucet ◽  
Guy Fontaine ◽  
...  

Objective: Chronically depressed right ventricular (RV) function presents an unresolved therapeutic challenge. Despite recent advances in medical and surgical therapies, prognosis remains poor and patient’s quality of life and mortality are frequently unacceptable. The aim of this work is to present the surgical technique and long-term results of RV dynamic cardiomyoplasty applied in patients with RV failure due to isolated RV cardiomyopathies. Methods: Twelve consecutive patients (8 males, 4 females), mean age 37±9 years, were enrolled. All pts had predominant RV dysfunction, associated with tricuspid regurgitation in 11 cases. Etiology of RV failure was arrhythmogenic cardiomyopathy (8 cases), Uhl’s disease (2 cases) and ischemic (2 cases). Patients were in preoperative NYHA FC III. Mean pre-operative EF measured by isotopic technique, was 20 ± 4.2 % for the RV and 37 ± 8 % for the LV. Right ventricular dynamic cardiomyoplasty consists in wrapping the RV free wall with the left Latissimus Dorsi Muscle (LDM) flap. The distal part of the LDM is fixed to the diaphragm and then electrostimulated in synchrony with cardiac function. Eleven patients required associated tricuspid valve surgery (10 annuloplasty rings and 1 valve replacement). In 6 pts an ICD was implanted prior to surgery. Results: Nine patients are alive (mean follow-up: 10 ± 3.5 years), seven in NYHA functional class I and two in class II. Three deaths occurred: one patient died postoperatively due to infection, one patient died at day 45 due to gastroenteric complication and one patient died at year 7 due to stroke, while in functional class II. At long term follow-up, mean RVEF is 32 ± 6 % and LVEF is 51 ± 9 %. Conclusions: The results of this long-term study demonstrate hemodynamic and functional improvements following RV cardiomyoplasty with no long-term malignant arrhythmias and RV dysfunction related deaths. The effects of RV cardiomyoplasty can be related to chronic systolic compression and diastolic dilatation restriction (positive remodeling), which may reduce tension and excitability of myocardial fibers. This study suggests that cardiomyoplasty is a safe alternative or long-term bridge to heart transplantation in these patients with relatively preserved LV function.


2020 ◽  
Vol 58 (6) ◽  
pp. 1274-1280
Author(s):  
Shuhei Fujita ◽  
Masaaki Yamagishi ◽  
Takako Miyazaki ◽  
Yoshinobu Maeda ◽  
Keiichi Itatani ◽  
...  

Abstract OBJECTIVES In Japan, homograft and bovine jugular vein are available in very limited institutions for the reconstruction of the right ventricular outflow tract, and handmade expanded polytetrafluoroethylene (ePTFE)-valved conduits have been widely used instead. This study aimed to clarify the long-term outcomes and the durability of the ePTFE-valved conduits purely by narrowing down to those with large sizes to eliminate the influence of the body growth. METHODS Between January 2002 and December 2015, patients who underwent right ventricular outflow tract reconstruction in 34 Japanese institutions using ePTFE-valved conduits with a diameter of ≥18 mm were included. All the valved conduits were made in the authors’ institution and delivered to each participating institution. RESULTS Overall, 502 patients were included. Early mortality was 1.4% and not related to conduit failure. The overall survival rate was 98.2% at 5 years and 96.6% at 10 years. Freedom from conduit explantation was 99.5% at 5 years and 89.0% at 10 years. Three patients (0.13 per 100 patient-years) developed infective endocarditis of the conduit, and only 1 patient required conduit removal. Pulmonary insufficiency was mild or less in 480 (96%) patients, and conduit stenosis was mild or less in 436 (88%) patients at the latest follow-up. CONCLUSIONS By narrowing the analyses down to only ePTFE conduits with a large size, satisfactory long-term outcomes of these conduits with a fan-shaped valve and bulging sinuses were shown. These conduits would be among the optimal choices for right ventricular outflow tract reconstruction.


2007 ◽  
Vol 153 (3) ◽  
pp. 433-438 ◽  
Author(s):  
Mohamed Eid Fawzy ◽  
Walid Hassan ◽  
Bahaa M. Fadel ◽  
Hani Sergani ◽  
Fayez El Shaer ◽  
...  

Circulation ◽  
1990 ◽  
Vol 82 (6) ◽  
pp. 2093-2099 ◽  
Author(s):  
F Morady ◽  
A H Kadish ◽  
L DiCarlo ◽  
W H Kou ◽  
S Winston ◽  
...  

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