Surgery for Acquired AV-Valve Diseases

2017 ◽  
pp. 795-829
Author(s):  
Parwis B. Rahmanian ◽  
Thorsten C. W. Wahlers
Keyword(s):  
Valve Diseases

Redo procedures for correction of the aortic valve diseases in infants and children. The Bentall–Konno procedure

2010 ◽  
Vol 151 (41) ◽  
pp. 1712-1715 ◽  
Author(s):  
István Hartyánszky ◽  
András Kollár ◽  
Imre Kassai ◽  
Edgár Székely ◽  
László Ablonczy ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Infants And Children ◽  
Valve Diseases ◽  
In Infants And Children

Súlyos valvularis aortastenosis miatt csecsemőkorban percutan ballondilatációt követően kialakult billentyűelégtelenség korrigálására Ross-műtét történt. A posztoperatív időben fellépett aortagyök infektív endocarditis miatt az aortagyök pótlására homograft-beültetés vált szükségessé. Tizenkét éves korára a kinőtt aortabillentyű elégtelenné vált, az elmeszesedett aortagyök cseréje Bentall szerint műbillentyűs conduittal, a bal kamra kifolyási pályájának Konno szerinti megnagyobbításával vált lehetővé. Az aortabillentyű- és aortagyök-betegségek komplex sebészi kezelést igényelhetnek, és sokszor már csecsemő- és gyermekkorban is sikeresen elvégezhetők. Ilyen típusú műtéti megoldást először végeztek Magyarországon. Orv. Hetil., 2010,41,1712–1715.

CORONARY ARTERY LESIONS IN PATIENTS OVER 50 YEAR OLD WITH VALVULAR HEART DISEASES INDICATED FOR VALVE SURGERY

2016 ◽  
pp. 20-24
Author(s):  
Bang Giap Vo ◽  
Anh Binh Ho ◽  
Van Minh Huynh
Keyword(s):  
Coronary Artery ◽  
Mitral Valve ◽  
Heart Valve ◽  
Right Coronary Artery ◽  
Heart Diseases ◽  
Heart Valve Diseases ◽  
Coronary Artery Lesions ◽  
Circumflex Coronary Artery ◽  
Valvular Heart Diseases ◽  
Valve Diseases

Objectives: To investigate the features of coronary artery lesions in patients over 50 with heart valve diseases and to find out the relationship between the levels of coronary artery lesions and heart valve diseases. Results: In patients over 50 year old with heart valve diseases, the rate of significant coronary artery lesions is 55.5%. In which, significant lesions in the group of both mitral and aorta valve diseases is 44.19%, only mitral valve diseases is of 70%, only aortic valve diseases is of 51.85%. There is a relationship between the severity of mitral valve diseases and right coronary artery lesions (OR 3.74: 1.64 to 8.5, p = 0.0017) and circumflex coronary artery lesions (OR 2.59: 1.16 to 5.75, p = 0.0192). The severity of heart valve lesions in significant coronary artery lesions group is higher than insignificant coronary artery lesions group or normal group. Conclusion: Coronary artery lesions is common in patients > 50 years old with heart valve diseases, there is a relationship between the severity of mitral valve diseases and and right coronary artery lesions and circumflex coronary artery lesions. Key words: coronary artery lesions, mitral valvediseases

Mitral valve diseases: Pathophysiology and interventions

2021 ◽  
Author(s):  
Amer Harky ◽  
Bianca Botezatu ◽  
Sahil Kakar ◽  
Moliu Ren ◽  
Manasi Mahesh Shirke ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Valve Diseases

The Influence of the Aortic Root Geometry on Flow Characteristics of a Prosthetic Heart Valve

2015 ◽  
Vol 137 (5) ◽  
Author(s):  
Oleksandr Barannyk ◽  
Peter Oshkai
Keyword(s):  
Aortic Valve ◽  
Heart Valve ◽  
Aortic Root ◽  
Reynolds Shear Stress ◽  
Prosthetic Heart Valve ◽  
Flow Characteristics ◽  
Aortic Pressure ◽  
Valve Prosthesis ◽  
Aortic Heart Valve ◽  
Valve Diseases

In this paper, performance of aortic heart valve prosthesis in different geometries of the aortic root is investigated experimentally. The objective of this investigation is to establish a set of parameters, which are associated with abnormal flow patterns due to the flow through a prosthetic heart valve implanted in the patients that had certain types of valve diseases prior to the valve replacement. Specific valve diseases were classified into two clinical categories and were correlated with the corresponding changes in aortic root geometry while keeping the aortic base diameter fixed. These categories correspond to aortic valve stenosis and aortic valve insufficiency. The control case that corresponds to the aortic root of a patient without valve disease was used as a reference. Experiments were performed at test conditions corresponding to 70 beats/min, 5.5 L/min target cardiac output, and a mean aortic pressure of 100 mmHg. By varying the aortic root geometry, while keeping the diameter of the orifice constant, it was possible to investigate corresponding changes in the levels of Reynolds shear stress and establish the possibility of platelet activation and, as a result of that, the formation of blood clots.

Dialdehyde pectin-crosslinked and hirudin-loaded decellularized porcine pericardium with improved matrix stability, enhanced anti-calcification and anticoagulant for bioprosthetic heart valves

2021 ◽  
Author(s):  
Mengyue Hu ◽  
Xu Peng ◽  
Yang Zhao ◽  
Xiaoshuang Yu ◽  
Can Cheng ◽  
...  
Keyword(s):  
Heart Valve ◽  
Heart Valves ◽  
Heart Valve Diseases ◽  
Bioprosthetic Heart Valves ◽  
Matrix Stability ◽  
Transcatheter Valve ◽  
Valve Diseases ◽  
Porcine Pericardium

To conveniently and effectively cure heart valve diseases or defects, combining with transcatheter valve technology, bioprosthetic heart valves (BHVs) originated from the decellularized porcine pericardium (D-PP) have been broadly used...

scholarly journals Cardiopulmonary Manifestations of Ankylosing Spondylitis

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Mahnaz Momeni ◽  
Nora Taylor ◽  
Mahsa Tehrani
Keyword(s):  
Ankylosing Spondylitis ◽  
Cardiac Dysfunction ◽  
Spontaneous Pneumothorax ◽  
Pulmonary Complications ◽  
Inflammatory Condition ◽  
Stepwise Approach ◽  
Conduction Disturbances ◽  
Chronic Inflammatory Condition ◽  
Pulmonary Manifestations ◽  
Valve Diseases

Ankylosing spondylitis is a chronic inflammatory condition that usually affects young men. Cardiac dysfunction and pulmonary disease are well-known and commonly reported extra-articular manifestation, associated with ankylosing spondylitis (AS). AS has also been reported to be specifically associated with aortitis, aortic valve diseases, conduction disturbances, cardiomyopathy and ischemic heart disease. The pulmonary manifestations of the disease include fibrosis of the upper lobes, interstitial lung disease, ventilatory impairment due to chest wall restriction, sleep apnea, and spontaneous pneumothorax. They are many reports detailing pathophysiology, hypothesized mechanisms leading to these derangements, and estimated prevalence of such findings in the AS populations. At this time, there are no clear guidelines regarding a stepwise approach to screen these patients for cardiovascular and pulmonary complications.

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