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العنوان
Tricuspid Annuloplasty Using Autologous Pericardial Strip Versus Conventional Suture Annuloplasty (The De Vega and Kay Methods) For Repair of Functional Tricuspid Regurgitation /
المؤلف
Abd Elkader, Amr Mohamed.
هيئة الاعداد
باحث / عمرو محمد عبد القادر
مشرف / محسن عبد الكريم
مشرف / حسن مفتاح
مشرف / ياسر النحاس
مشرف / أحمد حلمي
تاريخ النشر
2023.
عدد الصفحات
188 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
أمراض القلب والطب القلب والأوعية الدموية
تاريخ الإجازة
1/1/2023
مكان الإجازة
جامعة عين شمس - كلية الطب - جراحة القلب والصدر
الفهرس
Only 14 pages are availabe for public view

from 188

from 188

Abstract

This prospective study was conducted at department of cardiothoracic surgery Ain shams university hospital and Sharq El-madina cardiac center in Alexandria.
Tricuspid regurgitation is one of the most common problems encountered in cardiac surgery. Secondary or functional tricuspid regurgitation is usually associated with left sided valvular lesions especially the mitral valve. Right ventricular and tricuspid annular dilatations are the main contributing factors for tricuspid valve regurgitation.
In the past correction of this regurgitation was left to surgeon decision. Studies showed that significant tricuspid regurgitation has impact on the functional status of the patients and may be a cause of late mortality. So, repair of this valve during surgery is now under control of guidelines.
The valve is composed of leaflets, annulus, chordae and papillary muscles. However majority of repairs are directed to the annulus either by suture annuloplasty or prosthetic annuloplasty.
A lot of studies compared prosthetic flexible band and rigid ring for repair of tricuspid valve with accepted results for both.
The aim was to compare the short-term results of TAP using flexible band of autologous pericardium with those using conventional suture annuloplasty (DeVaga or Kay method), mainly in term of the repair efficacy.
Our hypothesis was to confirm that autologous pericardial strip annuloplasty appears to be a simple, easily reproducible, valid and efficient option for surgical treatment of FTR in comparison to conventional suture annuloplasty.
Patients with left sided valvular lesions (mitral, aortic and double valves) associated with functional moderate or severe tricuspid regurgitation were enrolled in this study. 100 patients were assessed preoperative regarding their functional status and severity of tricuspid regurgitation
In this study repair of tricuspid valve was done for fifty patients using autologous pericardium made as a flexible band in order to gain advantages of being malleable not affecting the free wall motion of the right ventricle. Moreover, this way is easy and economic and for other fifty patients using conventional suture annuloplasty.
In all patients, intraoperative assessment of the valve after repair were done by direct injection of normal saline solution 0.9% in the right ventricle (RV) through the valve while suctioning the coronary sinus in beating heart to evaluate any regurgitated flow from right ventricle to right atrium. Intraoperative transesophageal echocardiography was used to confirm adequacy of the repair when available.
After surgery, patients were followed up by early post-operative echocardiography before discharge from the hospital and for one year post-operative at outpatient clinic. During the follow up period, patient’s clinical status and echocardiographic results were obtained by the surgeons and cardiologists.
Follow up and results were encouraging but there were some limitation of this study being comparative of small size and short period of follow up.
So we recommended this technique as an option for repair of functional tricuspid regurgitation but further randomized controlled studies with large sample size should be done and comparing it with others techniques of repair as ring annuloplasty