BACKGROUND Cardiovascular Magnetic Resonance is often used to evaluate patients after heart valve replacement. This study systematically analyses the influence of heart valve prostheses on phase contrast measurements in a phantom trial. METHODS Two biological and one mechanical aortic valve prostheses were integrated in a flow phantom. B0 maps and phase contrast measurements were acquired at ...

BACKGROUND Several centers favor replacing a diseased native heart valve with a tissue rather than a mechanical prosthesis, even in younger adult patients. However, long-term data supporting this approach are lacking. We examined the survival implications of selecting a tissue versus a mechanical prosthesis at initial left-heart valve replacement in a cohort of adults <60 years of age who were ...

Prosthesis valve dehiscence is one of the most serious complications prosthetic valves. Despite improvements in medical and surgical treatments, prosthesis has high mortality. Due to fatality rates, early diagnosis treatment these patients required. In this case report, we presented a patient with severe mitral deficiency acute heart failure following mechanical secondary culture-negative endoc...

Dehiscence of the valve is a serious complication of prosthetic heart valve replacement. It has grave consequences unless promptly diagnosed and corrected by surgery. We report the case of a symptomless patient with near-complete detachment of the aortic prosthesis, diagnosed by radiography and two-dimensional echocardiography. This was confirmed at surgery and the dehisced prosthetic valve was...

The first mechanical heart valve prosthesis, designed by Dr Charles Hufnagel, was implanted to the descending aorta of a 30-year-old woman with severe aortic regurgitation in 1952.1 Eight years after the initial successful prosthetic valve implantation, Dr Harken sutured a prosthetic valve (Starr Edwards Valve) to the aortic annulus after removing the diseased native valve. During the ensuing y...

The first mechanical heart valve prosthesis, designed by Dr Charles Hufnagel, was implanted to the descending aorta of a 30-year-old woman with severe aortic regurgitation in 1952.1 Eight years after the initial successful prosthetic valve implantation, Dr Harken sutured a prosthetic valve (Starr Edwards Valve) to the aortic annulus after removing the diseased native valve. During the ensuing y...

OBJECTIVE The approval of a heart valve for the European market takes place in accordance with European and international standards. A new version of the EN Standards was published in June 2006, which responded to different technical innovations in the area of heart valve technology. This work outlines the differences between the new EN ISO 5840 (2005) and the old EN 12006-1 (1999). METHODS W...

Background—The United Kingdom Heart Valve Registry (UKHVR) has recently completed collecting information on 52 659 heart valve replacements (in 47 718 patients) performed during the period 1986 to 1995 in the whole of the United Kingdom. Information stored in the UKHVR’s computer database was used for this study. Factors affecting the time from first prosthesis to first redo prosthesis were ana...

An Alvarez disc valve prosthesis had been implanted in the mitral and tricuspid positions in 15 patients between 1964 and 1967 in this hospital. Of these 15 patients, only three survived longer than 10 years, all three dying unexpectedly between 16 and 18 years postoperatively. Two deaths were a direct result of disruption of the Alvarez prosthesis. The third patient was not examined at necrops...

BACKGROUND The United Kingdom Heart Valve Registry (UKHVR) has recently completed collecting information on 52 659 heart valve replacements (in 47 718 patients) performed during the period 1986 to 1995 in the whole of the United Kingdom. Information stored in the UKHVR's computer database was used for this study. Factors affecting the time from first prosthesis to first redo prosthesis were ana...