Open AccessA SERVO CONTROLLED TRANSAPICAL LEFT VENTRICULAR TO AORTIC ASSIST DEVICE WITH IMPLANTABLE CANNULAE
Author(s) -
Hillel Laks,
Ott Ra,
Hahn Jw,
Standeven Jw,
Willman Vl
Publication year - 1977
Publication title -
asaio journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.961
H-Index - 66
eISSN - 1538-943X
pISSN - 1058-2916
DOI - 10.1097/00002480-197700230-00079
Subject(s) - cannula , medicine , thrombus , embolization , decompression , cardiology , surgery
A servo controlled transapical LV to aortic bypass system employing a roller pump was evaluated. The pump achieved complete LV decompression with reduction of LV pressure below systemic pressure. The servo control was responsive to LA pressure and allowed stable complete bypass during interventions designed to raise and lower LA pressure. A permanently implantable transapical LV cannula and aortic cannula without obturators was evaluated with and without anticoagulants. The teflon felt surface 'healed' rapidly and developed a multi-layered fibrous pseudointima. Anticoagulants appeared to avoid excessive thrombus formation at the cannula sites and embolization.