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Mohammad Hossein Mandegar
Mohammad Ali Yousefnia
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Ann Thorac Surg 2007;84:680-682
© 2007 The Society of Thoracic Surgeons

How To Do It

Preoperative Determination of Artificial Chordae Length

Mohammad Hossein Mandegar, MD, Mohammad Ali Yousefnia, MD, Farideh Roshanali, MD*

Cardiac Surgery Department, Day General Hospital, Tehran, Iran

Accepted for publication November 28, 2006.

* Address correspondence to Dr Roshanali, No. 1, 8th Floor, 15th Tower, Hormozan St, Ghods Shahrak, Tehran, 14466, Iran (Email: faridehroshanali{at}yahoo.com).

We present a practical and accurate way to measure artificial chordae length in mitral valve repair. During preoperative transesophageal echocardiography, the distance between the head of the posterior papillary muscle and the mitral annulus plane at the coaptation of the leaflets is measured; this is the length of the new chorda. Every millimeter of braided 4-0 Gore-Tex (W.L. Gore & Assoc, Flagstaff, AZ) contains two tight reverse knots; therefore, the number of the knots determines the accurate length of the artificial chorda.






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