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Off Pump Aortoplasty For Selected Ascending Aortic Aneurysm
Paolo Pepino, MD, Germano Coronella, MD, Piermario Oliviero, MD, Raffaela Provenzano, MD, Salvatore Giordano, MD, Agostino La Marca, MD, Francesco Petteruti, MD, Mario Monaco, MD.
Presidio Ospedaliero Pineta Grande, Castel Volturno, Caserta, Italy.

BACKGROUND: Sixty percent of thoracic aortic aneurism involve the aortic root or ascending aorta. The optimal timing of surgical repair remains uncertain despite most surgeons prefer to treat the aneurysm at a diameter of ≥ 5,5 cm. This paper describes our off pump option for the treatment of isolated asending aorta aneurism with a diameter between 5,0 and 5,5 cm. METHODS: Four patients with a story of ascending aorta aneurysm were selected from March 2013 to September 2013. Trans thoracic echocardiography, angio CT scan and a coronary angiography were performed during the pre op evaluation. The surgical procedure was performed on beating heart and off pump using with a low dose of heparin (5000 UI). A side clamp was used to plicate longitudinally the ascending aorta at the level of maximum dilatation from the sino tubular junction up to the troncus anonymous with controlled hypotension (70 mmHg). The plication was performed with a double layer of 3/0 Prolene suture reinforced with two strips of Teflon along the plication. Furthermore, a 32 mm Dacron tube, opened longitudinally, was wrapped around the ascending aorta and sutured to the plication with a double 3/0 prolene suture. RESULTS: All patients were estubated in an hour after the operation. No major complications were observed. A post op echocardiography and an angio CT scan were performed at the discharge showing a reduction of the ascending aorta aneurysm with a maximum diameter of 3,5 cm. CONCLUSION: The procedure previously described is easy and it is done without cardiopulmonary bypass that according to the Laplace low (the wall tension is the result of the pressure for radius) reducing the radius of the aorta, allows to reduce the wall tension. Furthermore the bending of the ascending aorta reduces the possibility of rupture of the aorta. This is a preliminary experience that despite initially results are encouraging (CT scan after six month doesn't show any changes) must be controlled with a mid term follow up.

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