To assess the flow characteristics of homograft valved conduits in the immediate postoperative period, 69 children with 71 homograft conduits underwent 2-dimensional and Doppler echocardiographic examination at 1 to 40 days (mean 8) after surgery. Of the 71 conduits studied, 19 were aortic and 52 were pulmonary homograft valved conduits. Two aortic homograft valved conduits were inserted in the...

Phonocardiographic, hemodynamic, angiographic, and cardiac echographic studies have been performed on 11 patients whose diseased mitral valves have been replaced by a supported aortic valve homograft. The chordae tendineae and papillary muscles were removed in all patients during the operation. Apical first heart sounds of normal intensity were present in all patients after surgery. Nine patien...

Results of long-term follow-up of an early cohort of patients receiving aortic valve homografts for aortic stenosis and aortic insufficiency are presented. All patients were operated upon by a single surgeon from 1966 to 1971. Eighty-three patients underwent insertion of 85 homograft aortic valves. Homografts were sterilized with either betapropiolactone (39 valves) or gamma irradiation (41 val...

BACKGROUND The long-term results of homografts used in systemic circulation are controversial. We assessed the long-term results of using a cryopreserved homograft for an aortic root or aorta and its branch replacement. MATERIALS AND METHODS From June 1995 to January 2010, 23 patients (male:female=15:8, 45.4±15.6 years) underwent a homograft replacement in the aortic position. The surgical te...

By JANINE ANDRI -SCHWARTL I HE REJECTION of a skin homograft by the rabbit is accompanied by the proliferation of large, basophilic cells (hemocytoblasts) in its lymphoid system.1-2 These cells first appear in the lymph node contiguous to the homograft; later, they are found in regional and distant lymphatic structures, but they are always most prominent in the lymph node draining the homograft...

Aortic root surgical anatomy and knowledge of the various homograft implantation techniques is of paramount importance to the attending anesthesiologist for echocardiographic correlation, estimation and accurately predicting aortic annular dimensions for the valve replacement in a case of diseased homograft.

AIMS To analyse the long-term outcomes after pulmonary valve replacement (PVR) in patients with a previous correction for tetralogy of Fallot. METHODS AND RESULTS In a retrospective study, 158 adult patients with a diagnosis of tetralogy of Fallot, who had undergone a PVR after initial total correction in childhood, were identified from the CONCOR (CONgenital CORvitia) registry. All patients ...

Infections of prosthetic grafts in vascular surgery are the cause of many serious postoperative complications including death (Bahnini et al.,1991; Callow,1996; Wilson,2001; Yeager&Porter,1992). Encouraging results were obtained when cold-preserved fresh arterial homografts and other biologic grafts were used to replace infected prosthetic grafts (Chiesa et al.,1998, 2002). Cooling down the gra...

1 able. One, which would be applicable for loglc advantage in comparison to the ectopthe treatment of malignant disease of the ically placed homograft. liver, consists of removal of the recipient's In the present study, the role of portal , own organ and replacement with a hepatic venous flow in affecting the well-being of homograft. The other variety of operation, the homograft and the host's ...

Phonocardiographic, hemodynamic, angiographic, and cardiac echographic studies have been performed on 11 patients whose diseased mitral valves have been replaced by a supported aortic valve homograft. The chordae tendineae and papillary muscles were removed in all patients during the operation. Apical first heart sounds of normal intensity were present in all patients after surgery. Nine patien...