Pulmonary artery banding: long-term telemetric adjustment

Details

Serval ID
serval:BIB_3F938237E56E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Pulmonary artery banding: long-term telemetric adjustment
Journal
European Journal of Cardio-Thoracic Surgery
Author(s)
Corno  A.F., Sekarski  N., Bernath  M.A., Payot  M., Tozzi  P., von Segesser  L.K.
ISSN
1010-7940
Publication state
Published
Issued date
03/2003
Peer-reviewed
Oui
Volume
23
Number
3
Pages
317-22
Notes
Evaluation Studies Journal Article --- Old month value: Mar
Abstract
OBJECTIVE: Adjustment of pulmonary blood flow is difficult in pulmonary artery banding for complex congenital heart defects. A new wireless, battery free, telemetrically controlled, implantable device (FloWatch, EndoArt, S.A., Lausanne, Switzerland) allowing for progressive occlusion/reopening of the device through a remote control at the wanted percentage of occlusion (adjustable pulmonary artery banding) underwent experimental evaluation. METHODS: Eleven mini-pigs underwent FloWatch implantation around the main pulmonary artery through left thoracotomy. The first group (n=4), mean age 18.2+/-0.1 weeks, mean body weight 12.0+/-0.1 kg, underwent FloWatch implantation as device tolerance test. The second group (n=7), mean age 8.6+/-3.4 weeks, mean body weight 5.1+/-1.5 kg, underwent functional evaluation: at implantation, 1, 3, 5, 8 and 10 weeks after implantation, the device was progressively occluded and reopened, with Doppler evaluation of the developed pressure gradient. RESULTS: The four mini-pigs of first group were sacrificed at mean age of 42.3+/-0.1 weeks, mean body weight 25.1+/-3.2 kg (mean interval of 24 weeks after implantation); the device was still functioning and histology revealed almost normal morphology of the pulmonary artery. In all seven mini-pigs of second group the possibility of narrowing/releasing the pulmonary artery was confirmed at implantation and during follow-up: at last control their mean age was 20.5+/-2.8 weeks and the body weight 12.7+/-3.7 kg. CONCLUSIONS: Complete adjustment of pulmonary blood flow is now possible with an implantable device allowing for pulmonary artery banding with early and late telemetric flow control.
Keywords
Animals Constriction Equipment Design Feasibility Studies Heart Defects, Congenital/*surgery Prostheses and Implants Pulmonary Artery/pathology/*surgery Swine Swine, Miniature Telemetry/*methods
Pubmed
Web of science
Open Access
Yes
Create date
17/01/2008 15:55
Last modification date
20/08/2019 13:36
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