Comparison of Clinical Outcomes Seprate and semi continus sewing methods during and after Heart valves Surgery

Journal of Birjand University of Medical Sciences ◽

10.32592/jbirjandunivmedsci.2021.28.1.103 ◽

2020 ◽

Keyword(s):

Mitral Valve ◽

Valve Replacement ◽

Heart Valve ◽

Heart Valves ◽

Suture Techniques ◽

Continuous Suture ◽

Replacement Surgery ◽

Interrupted Suture ◽

Significant Difference ◽

Valve Leakage

Background and Aims: Various therapies and surgeries are applied in heart valve surgery, including interrupted and semi-continuous suture techniques. Therefore, this study aimed to compare the clinical implications of two methods of interrupted and semi-continuous suture techniques during and after mitral or aortic valve replacement surgery among patients referred to Department of Surgery, School of Medicine, Birjand University of Medical Sciences. Materials and Methods: In this study, the required information of patients was collected through the checklist based on the objectives of the study. The subjects had undergone aortic or mitral valve replacement for heart valve replacement suturing with continuous or interrupted suturing techniques. The patientschr('39') records were examined to investigate the complications, and in case that the required information was not registered, the patient or his relatives were also contacted so that the patient could be examined and referred to the hospital by the patientchr('39')s surgeon. Results: The mean age scores of patients undergoing surgery in the continuous and interrupted suture groups were obtained as 53.06±13.48 and 52.86±12.97 years, respectively. It was revealed that there was a large distribution of heart valve leakage, arrhythmia, heart attack, valve infection, involved valve type, and aortic and mitral valve size in the two groups; however, there was no significant difference (P>0.05). Conclusion: Based on the results of this study, the rate of cardiac function and complications caused by the two techniques of continuous and interrupted suturing were not significantly different from each other; therefore, these two methods were not superior to each other due to the mentioned cases.

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Calcification of Trileaflet Polyurethane Heart Valve

ASME 2010 Summer Bioengineering Conference, Parts A and B ◽

10.1115/sbc2010-19486 ◽

2010 ◽

Cited By ~ 1

Author(s):

Parnian Boloori Zadeh ◽

Hamid N.-Hashemi ◽

Scott C. Corbett ◽

Ahmet U. Coskun

Keyword(s):

Valve Replacement ◽

Heart Valve ◽

Heart Valves ◽

Heart Valve Replacement ◽

Heart Valve Disease ◽

Blood Proteins ◽

Replacement Surgery ◽

Limited Life ◽

Alternative Material

Heart valve disease is a common type of cardiac disease that causes a large number of mortalities worldwide. Patients with severe heart valve problems are required to undergo heart valve replacement surgeries. Mechanical and bioprosthetic heart valves are the current available prostheses for patients in need of a heart valve replacement surgery. Mechanical heart valves are susceptible to thromboembolism and thrombosis and bioprosthetic valves have a limited life-span because of leaflet wear and calcification. Different polyurethane valves were suggested as an alternative material. However, prior results indicated that tested polyurethanes failed due to calcification. The mechanism for polyurethane calcification is not yet completely understood. Kou Imachi et al. [2], suggested that the calcification is due to entrapment of blood proteins and/or phospholipids in microgaps in the polymer and subsequent attraction of Ca ion, leading to formation of calcium phosphate (Ca3(PO4)2). Bisphosphonates (BP), which are considered to enhance the calcification resistance of polymers once covalently bonded to the material, indicated promising results in some studies. Focus of the present study is the trileaflet polyurethane valve, originally developed in the design of the AbioCor® replacement heart, and has demonstrated excellent durability and hemocompatibility in clinical evaluation. Over the past three years, this valve has been modified and its potential as a replacement valve have been studied [1]. Valve hemodynamic analysis showed that it is comparable to bioprosthetic valve in terms of fluid flow, pressure drop and regurgitation [1]. In order to ensure the suitability of the trileaflet polyurethane valve as a replacement valve its fatigue and calcification resistance are studied. The purpose of this paper is to simulate calcification of trileaflet polyurethane valves in an in vitro accelerated test and compare that with that of tissue valves. Furthermore the effect of bisphosphonate modified polyurethane on calcification is studied.

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Micromechanical Analysis of Mouse Aortic Valve Leaflets With Atomic Force Microscopy

ASME 2012 Summer Bioengineering Conference, Parts A and B ◽

10.1115/sbc2012-80500 ◽

2012 ◽

Author(s):

M. K. Sewell-Loftin ◽

Christopher B. Brown ◽

H. Scott Baldwin ◽

W. David Merryman

Keyword(s):

Valve Replacement ◽

Heart Valve ◽

Congenital Heart ◽

Heart Valves ◽

Heart Defects ◽

Biomechanical Properties ◽

The United States ◽

Heart Valve Disease ◽

Replacement Surgery ◽

Valve Replacement Surgery

A significant limitation in our ability to study congenital heart valve disease and defects is due to lack of appropriate animal models and also in part to our incomplete understanding of biomechanical properties of the leaflet tissues. Biomechanical changes in leaflets as they develop and throughout a person’s lifetime are not well understood. With improved understanding of such changes, more intuitive approaches could be used to develop tissue engineered heart valves. Each year in the United States, over 20,000 children are born with congenital heart defects; many requiring valve replacement surgery [1–2]. Additionally, over 300,000 people worldwide require heart valve replacement surgery each year [3–4]. The creation of better valve replacements would improve treatment and quality of patient life.

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The Effectiveness of Heart Valve Replacement Surgery in a Non-Referral Regional Hospital: The Analysis of Outcomes after Isolated and Complex Valve Replacement

The Heart Surgery Forum ◽

10.1532/hsf.2373 ◽

2019 ◽

Vol 22 (5) ◽

pp. E343-E351 ◽

Cited By ~ 1

Author(s):

Mehmet Erin Tüysüz ◽

Mehmet Dedemoğlu

Keyword(s):

Renal Failure ◽

Valve Replacement ◽

Heart Valve ◽

Regional Hospital ◽

Heart Valve Replacement ◽

Late Mortality ◽

Replacement Surgery ◽

Double Valve Replacement ◽

Significant Difference ◽

Valve Replacement Surgery

Background: To comprehensively investigate early and late outcomes for all valve replacement surgery patients in a non-referral regional hospital database and to compare these results with the literature. Methods: This was a retrospective study and made up of patients undergoing heart valve replacement in the cardiovascular department of a non-referral regional hospital between May 2008 and February 2018. Inclusion criteria were aortic, mitral and double valve replacement with or without CABG. Results: 212 patients were included in the study. Of the 212 patients, 65 were aortic valve replacement, 119 were mitral valve replacement, 28 were double valve replacement patients. Mean follow-up of all patients was 3.4 ± 2.9 years. There was no significant difference among the groups regarding hospital mortality. The occurrence of acute renal failure and neurological event was the main factors of morbidity-associated mortality. Concomitant CABG procedure was found to be an independent predictor of early mortality after MVR. In the AVR group, there was no significant difference between AVR with CABG and without CABG regarding the 5-year survival rates; whereas in MVR and DVR group, there was a statistically significant difference between the groups. According to Cox proportional hazards model for determining factors related to late mortality, preoperative chronic renal failure and concomitant CABG were factors independently related to late mortality after MVR. Conclusion: We believe that our study will contribute to the development of the outcomes of heart valve replacement surgery in these centers by supporting other non-heart center clinics in working toward acceptable morality rates for complex valve surgeries.

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RELATIONSHIP OF PREOPERATIVE RIGHT VENTRICULAR FUNCTION AND OUTCOME AFTER MITRAL VALVE REPLACEMENT SURGERY – A PROSPECTIVE OBSERVATIONAL STUDY

10.36106/4701425 ◽

2020 ◽

pp. 43-46

Author(s):

Debashis Karmokar ◽

Pinaki Majumdar ◽

Manjushree Ray ◽

Asim Kumar Kundu

Keyword(s):

Mitral Valve ◽

Right Ventricular ◽

Ventricular Function ◽

Valve Replacement ◽

Mitral Valve Replacement ◽

Right Ventricular Function ◽

Low Cardiac Output Syndrome ◽

Replacement Surgery ◽

Grade 3 ◽

Valve Replacement Surgery

Objective:Right ventricular dysfunction constitutes a major risk factor for patients suffering from degenerative mitral valve disease. The objective of this study was to assess right ventricular function by echocardiography and to detect role of right ventricular functions in prediction of outcome following mitral valve replacement operation in patients with rheumatic heart disease involving mitral valve. Methods:Transthoracic 3D echocardiography was done in 52 patients posted for mitral valve replacement surgery. Right ventricular function was analyzed by measuring fractional area change (FAC) of right ventricle, tethering distance and, tricuspid annular plane systolic excursion (TAPSE). Tricuspid regurgitation was graded 0 to 4. Based on echocardiographic ndings of right ventricle, patients were allocated in two groups; Group A (normal right ventricular function) and Group B (poor right ventricular function). After surgery, incidence of complications such as; low cardiac output syndrome, refractory arrhythmia and, sepsis were compared in two group. Results: Incidence of postoperative complication such as low cardiac output syndrome and sepsis was signicantly more in patients with poor right ventricular function. Right ventricular variables, FAC <35%, TAPSE <17 mm and tethering distance > 8 mm are independent predictors of postoperative complications. Tricuspid valve was repaired in patients with grade 3 and 4 regurgitation. Therefore cardiopulmonary bypass time was signicantly more in patients with grade 3 and 4 TR (84.42±69.77 min) (p<0.01). Duration of intensive care support was also signicantly more in patients with poor right ventricular function (p<0.001) Conclusion: To predict possible complications and outcome following mitral valve replacement surgery, right ventricular functions should be thoroughly assessed by 3D echocardiography

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A Giant Left Atrium due to Rheumatic Mitral Regurgitation, Outcome after Left Atrial Reduction Surgey with Mitral Valve Replacement

University Heart Journal ◽

10.3329/uhj.v14i1.38488 ◽

2018 ◽

Vol 14 (1) ◽

pp. 42-44

Author(s):

Istiaq Ahmed ◽

Sorower Hossain ◽

Ankan Kumar Paul

Keyword(s):

Mitral Valve ◽

Mitral Regurgitation ◽

Left Atrium ◽

Valve Replacement ◽

Mitral Valve Replacement ◽

Left Atrial ◽

Quick Recovery ◽

Replacement Surgery ◽

Atrial Size ◽

Giant Left Atrium

A trans-thoracic echocardiography and chest radiograph of a 26 year old lady diagnosed as rheumatic mitral regurgitation with atrial fibrillation revealed a giant left atrium of 10.9 cm size with symptoms of dyspnoea and palpitation. The patient was treated with left atrial size reduction along with mitral valve replacement surgery and showed an excellent and quick recovery with total disappearance of symptoms and restoration of sinus rhythm only within few days.University Heart Journal Vol. 14, No. 1, Jan 2018; 42-44

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