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find Author "PAN Shiwei" 4 results
  • Progress in Surgical Treatment of Secondary Tricuspid Insufficiency

    Abstract: Tricuspid insufficiency founded in the setting of left-sided heart disease is usually secondary tricuspid insufficiency caused by tricuspid valve annular dilation. Some patients had rheumatic tricuspid valve diseases. Tricuspid valve repair rather than valve replacement is recommend for functional tricuspid regurgitation. Linear annuloplasty and ring annuloplasty are two main tricuspid valve repair methods. However, the indications for treatment of secondary tricuspid regurgitation remain controversial. The optimal surgical repair technique to eliminate secondary tricuspid regurgitation remains challenging. In this article, we review the assessment of tricuspid valve lesions, criteria for correction, and surgical management of secondary tricuspid insufficiency.methods. However, the indications for treatment of secondary tricus

    Release date:2016-08-30 05:49 Export PDF Favorites Scan
  • Clinical Application of Homemade Flexible Annuloplasty Ring in Mitral Valve Repair

    Abstract: Objective To summarize the clinical results of homemade flexible annuloplasty ring in mitral valve repair, in order to discuss the appropriate ring size. Methods Sixtysix patients (55 males,and 11 females with a mean age of 44.62±15.94 years) with mitral insufficiency underwent mitral valve repair with homemade flexible annuloplasty ring from April 2002 to November 2009 in Fu Wai Hospital. In order to choose the ring with an appropriate size, we made and kept to the following principles: if the intercommissural distance was bigger than size 30, we chose a ring 2size smaller; if the measured distance was smaller than size 30, 1size smaller ring would be chosen. Patients were followed by echocardiography to observe the mitral valve function. Results All patients were cured and discharged from the hospital. The results of echocardiography showed mild to moderate regurgitation in 1 patient, mild regurgitation in 11 patients, and normal mitral function or trace regurgitation in the rest 54 patients. Mitral valve forward velocity was 1.40±0.30 m/s with no mitral stenosis or systolic anterior motion (SAM) of the anterior mitral leaflet. Fiftyone patients were followed up from 2 months to 7 years(24.60±25.90 months). The results of echocardiography on 38 patients showed that 1 patient had moderate regurgitation, 5 patients had mild to moderate regurgitation, 9 patients had mild regurgitation and others had normal mitral function or trace regurgitation. For these 38 patients included in the followup study, mitral valve forward velocity was 1.50±0.40 m/s with no mitral stenosis, SAM or left ventricular outlet tract obstruction. During the followup, the left atrium size (43.19±10.48 mm vs. 48.59±9.40 mm, t=4.524, P=0.000) and left ventricular end diastolic diameter (52.64±7.35 mm vs. 6269±8.77 mm, t=7.607, P=0.000) decreased significantly than the preoperative size and diameter respectively.  The application of restrictive homemade flexible annuloplasty ring in mitral valve annuloplasty had satisfactory, durable and stable clinical results.

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  • Predictive Risk Factors for Prolonged Stay in Intensive Care Unit in Patients Undergoing Cardiac Valvular Surgery

    Objective To analyze risk factors for prolonged stay in intensive care unit (ICU) after cardiac valvular surgery. Methods Between January 2005 and May 2005, five hundred and seven consecutive patients undergone cardiac valvular surgery were divided into two groups based on if their length of ICU stay more than 5 days (prolonged stay in ICU was defined as 5 days or more). Group Ⅰ: 75 patients required prolonged ICU stay. Group Ⅱ: 432 patients did not require prolonged ICU stay. Univariate and multivariate analysis (logistic regression) were used to identify the risk factors. Results Seventyfive patients required prolonged ICU stay. Univariate risk factors showed that age, the proportion of previous heart surgery, smoking history and repeat cardiopulmonary bypass (CPB) support, cardiothoracicratio, the CPB time and aortic crossclamping time of group Ⅰ were higher or longer than those of group Ⅱ. The heart function, left ventricular ejection fraction (LVEF), pulmonary function of group Ⅰwere worse than those of group Ⅱ(Plt;0.05, 0.01). Logistic regression identified that preoperative age≥65 years (OR=4.399), LVEF≤0.50(OR=2.788),cardiothoracic ratio≥0.68(OR=2.411), maximal voluntary ventilation observed value/predicted value %lt;71%(OR=4.872), previous heart surgery (OR=3.241) and repeat CPB support during surgery (OR=18.656) were final risk factors for prolonged ICU stay. Conclusion Prolonged ICU stay after cardiac valvular surgery can be predicted through age, LVEF, cardiothoracic ratio, maximal voluntary ventilation, previous heart surgery and repeat CPB support during surgery. The patients with these risk factors need more preoperative care and postoperative care to reduce mortality, morbidity and avoid prolonged ICU stay after cardiac valvular surgery.

    Release date:2016-08-30 06:15 Export PDF Favorites Scan
  • Surgical Treatment for Patients with Coronary Heart Disease and Ventricular Aneurysm

    Objective To summarize clinical characteristics and treatment results of adult patients with coronary heart disease and ventricular aneurysm,and evaluate surgical outcomes. Methods Clinical data of 86 adult patients with coronary heart disease and ventricular aneurysm who underwent surgical treatment in Fu Wai Hospital from January 2011 to November 2012 were retrospectively analyzed. There were 70 male and 16 female patients with their average age of 57.7±10.6 years and average body weight of 71.7±10.5 kg. Preoperative echocardiography or left ventriculography showed left ventricular thrombus in 22 patients. Coronary angiography showed 47 patients with 3 vessel disease,29 patientswith 2 vessel disease,and 10 patients with single vessel disease. Sixteen patients underwent direct linear suturing of theaneurysm off pump,39 patients underwent simple linear suturing under cardiopulmonary bypass,15 patients received endoventricular purse-string reconstruction,and 16 patients received endoventricular purse-string reconstruction and patch plasty. Three patients underwent reexploration for bleeding. Sixty-four patients received concomitant coronary artery bypass grafting(CABG). Results Postoperatively 2 patients(2.3%) died of refractory ventricular fibrillation and multiple organ dysfunction syndrome respectively. Patients undergoing concomitant CABG received 2.3±1.2 grafts on the average. Seventy-eightpatients (92.9%) were followed up for 2-24 months after discharge. During follow-up,patients’ angina symptoms significantlyresolved,heart function improved in varying degrees,and no new sign of myocardial ischemia was found on electrocardiogram.Left ventricular ejection fraction (LVEF) was significantly higher than preoperative LVEF(51%±7% vs. 41%±9% ,t=6.20,P=0.00),and left ventricular end-diastolic diameter (LVEDD) was significantly smaller than preoperative LVEDD (54.2±6.2 mm vs. 56.0±6.8 mm,t=4.60,P=0.00) . Conclusion Ventricular aneurysm repair and concomitant CABG (or ventricular septal perforation repair,mitral valvuloplasty et al) are positive and effective treatment strategies for postinfarction ventricular aneurysm. Satisfactory clinical outcomes can be achieved by individualized treatment based on appropriate surgical strategies according to the size of ventricular aneurysm.

    Release date:2016-08-30 05:47 Export PDF Favorites Scan
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