The article, "a case of left ventricular pressure estimation by transthoracic echocardiography was useful for artificial aortic valve dysfunction after bentall operation", was reviewed.The article presented a case study of a 50-year-old male patient with prior ascending aorta replacement procedure 11 years ago due to acute type a aortic dissection.It was reported that on an unknown date, an unknown 23mm abbott/sjm mechanical heart valve was implanted for a bentall procedure with 26mm open stent graft and concomitant coronary artery bypass graft for pseudoaneurysm at proximal site.It was then reported on an unknown date post-procedure, the patient presented with shortness of breath on exertion, wobble, and dropped blood pressure.Systolic murmur was detected on auscultation.Chest x-ray and chest ct showed limited mobility of one leaflet for the valve implanted in aortic position.One leaflet was confirmed 82 degrees as maximum open angle and another the other valve's angle was 63 degrees which did not reach the normal angle as 85 degrees.Low-density area was detected at sub-valvular area which was suspected to be pannus.The patient was treated with warfarin to rule out thrombus but no improvement was observed by transthoracic echocardiography one month later.Pannus ingrowth was confirmed along the felt of the prosthetic vessel basal suturing area.Effective valvar orifice area become narrowed by nearly half from the original size due to pannus.A decision was made to explant the valve and remove the attached pannus to the annulus.A 19mm regent mechanical valve was implanted and the patient symptoms improved after procedure.[the primary and corresponding author was yoshimasa baba, national hospital organization kagoshima medical center, japan].
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As reported in a research article, a case of left ventricular pressure estimation by transthoracic echocardiography was useful for artificial aortic valve dysfunction after bentall operation.A more comprehensive assessment could not be performed as the event was non-contemporaneously reported through a literature review and no device was received for analysis.Based on the information received, the cause of the reported incident could not be conclusively determined.Literature attachment: article title "a case of left ventricular pressure estimation by transthoracic echocardiography was useful for artificial aortic valve dysfunction after bentall operation".
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