Mitral valve replacement cardiac surgery must be divided into pre-, intra- and postoperative. The incidence, phenomenology, and duration of symptoms diverge from patient to patient, and are difficult to define. One wonders whether any of the patients in either group in this analysis underwent any mechanical cardiac valve replacement. If so, one has to consider , described by Victor Skumin in 1978 as a “cardioprosthetic psychopathological syndrome” associated with mechanical heart valve implant and manifested by irrational fear, anxiety, depression and sleep disorder. A common postoperative complication with mitral valve surgery in a study involving 99 patients who had surgery for mitral regurgitation
Mitral insufficiency subsequent displacement of the papillary muscles and the dilatation of the mitral valve annulus. Rheumatic fever (RF) and Marfan's syndrome are other typical causes. Mitral valve stenosis (MVS) can sometimes be a cause of mitral regurgitation (MR) in the sense that a stenotic valve (calcified and with restricted range of movement) allows backflow (regurgitation) if it is too stiff and misshapen to close completely. Most MVS is caused by RF, so one can say that MVS is sometimes the proximal cause of MI/MR (that is, stenotic MI/MR) and that RF is often the distal cause of MVS, MI/MR, or both.