Surgical Ventricular Restoration
Surgical ventricular restoration (SVR) is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in individuals with akinetic segments of the heart, secondary to ischemic dilated cardiomyopathy. The SVR procedure is usually performed after coronary artery bypass grafting (CABG) and may precede or be followed by mitral valve repair or replacement and other procedures such as endocardectomy and cryoablation for treatment of ventricular tachycardia. A key difference between SVR and ventriculectomy (i.e., for aneurysm removal) is that, in SVR, circular “purse string” suturing is used around the border of the aneurysmal scar tissue. Tightening of this suture is believed to isolate the akinetic or dyskinetic scar, bring the healthy portion of the ventricular walls together, and restore a more normal ventricular contour. If the defect is large (i.e., an opening larger than 3 cm), the ventricle may also be reconstructed using patches of autologous or artificial material to maintain the desired ventricular volume and contour during closure of the ventriculotomy. In addition, SVR is distinct from partial left ventriculectomy (i.e., the Batista procedure), which does not attempt specifically to resect akinetic segments and restore ventricular contour.
The SVR procedure is also referred to as left ventricular reconstructive surgery, ventricular reduction surgery, surgical anterior ventricular endocardial restoration (SAVER), endoventricular circular plasty, or the Dor procedure.
Surgical ventricular restoration for the treatment of conditions/diseases, including, but not limited to, ischemic dilated cardiomyopathy is considered investigational.
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To date, studies addressing SVR have failed to demonstrate a positive impact on net health outcomes. The 2012 STICH trial, a pivotal randomized clinical trial, did not find any improvements in clinical outcomes or quality-of-life measures for individuals undergoing SVR in addition to standard CABG surgery.
American Heart Association. (2013). ACCF/AHA Practice Guideline: 2013 ACCF/AHA guideline for the management of heart failure: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Retrieved August 27, 2014 from http://circ.ahajournals.org (385 articles and/or guidelines reviewed)
BlueCross BlueShield Association. Medical Policy Reference Manual. (2:2018). Surgical ventricular restoration (7.01.103). Retrieved September 14, 2018 from BlueWeb. (21 articles and/or guidelines reviewed)
Holly, T., Bonow, R., Arnold, M., Oh, J., Varadarajan, P., Pohost, G., et al. (2014). Myocardial viability and impact of surgical ventricular reconstruction on outcomes of patients with severe left ventricular dysfunction undergoing coronary artery bypass surgery: results of the surgical treatment for ischemic heart failure (STICH) trial. Journal of Thoracic Cardiovascular Surgery, 148 (6), 2677-2684. (Level 2 evidence)
Kukulski, T., She, L., Racine, N., Gradinac, S., Panza, J., Velaquez, E., et al. (2015). Implication of right ventricular dysfunction on long-term outcome in patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting with or without surgical ventricular reconstruction. Journal of Thoracic Cardiovascular Surgery, 149 (5), 1312-1321. (Level 2 evidence)
Oh, J., Velazquez, E., Menicanti, L., Pohost, G., Bonow, R., Lin, G., et al. (2012). Influence of baseline left ventricular function on the clinical outcome of surgical ventricular reconstruction in patients with ischaemic cardiomyopathy. European Heart Journal, (34), 39–47. (Level 3 evidence)
Prior, D.L., Stevens, S.R., Holly, T.A., Kreica, M., Paraforos, A., Pohost, G.M., et al. (2017). Regional left ventricular function does not predict survival in ischaemic cardiomyopathy after cardiac surgery. Heart, 103 (17), 1359-1367. (Level 2 evidence)
U. S. Food and Drug Administration. (2001, November). Center for Devices and Radiological Health. 510(k) Premarket Notification Database. K011487 (CorRestore™ Patch). Retrieved February 28, 2013 from http://www.accessdata.fda.gov.
U. S. Food and Drug Administration. (2008, October). Center for Devices and Radiological Health. 510(k) Premarket Notification Database. K082139 (PeriPatch™ Sheet). Retrieved July 21, 2011 from http://www.accessdata.fda.gov.
MOST RECENT REVIEW DATE: 10/11/2018
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