A new expandable venous cannula for minimal access heart surgery

Détails

ID Serval
serval:BIB_EBA34A3F0F59
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
A new expandable venous cannula for minimal access heart surgery
Périodique
Annals of Thoracic Surgery
Auteur(s)
Mueller  X. M., Tevaearai  H. T., Jegger  D., Horisberger  J., Mucciolo  G., von Segesser  L. K.
ISSN
0003-4975 (Print)
Statut éditorial
Publié
Date de publication
10/2002
Volume
74
Numéro
4
Pages
S1330-3
Notes
Comparative Study
Journal Article --- Old month value: Oct
Résumé
BACKGROUND: During percutaneous cannulation, the diameter of the venous cannula is determined by the size of the access site. To limit this restriction, the Smart cannula (Cardiosmart Ltd., Fribourg, Switzerland) has been developed. Because its design allows self-expansion within the recipient vein, diameter restriction is limited to the access site. METHODS: In 6 calves (78 +/- 4.3 kg), the jugular vein and the carotid artery were cannulated through a cervicotomy. The Smart cannula was tested against three percutaneous cannulas with a diameter of 27, 25, and 21F, respectively. Stenotic percutaneous access to the vein was simulated by 1-cm wide tape encircling the vein that could be adjusted to a diameter of 27, 25, and 21F, respectively. The maximal flow rate, reached with stable reservoir level and a negative pressure of 44 mm Hg, was determined three times for each access size with the Smart cannula (one size fits all) and the corresponding percutaneous cannula successively. RESULTS: For an access size of 27F, the flow of the Smart cannula was 5.7 +/- 0.4 L/min and that of the percutaneous cannula was 4.3 +/- 0.2 L/min (p < 0.0001); for 25F, flow rates were 5.6 +/- 0.5 and 3.9 +/- 0.2 L/min, respectively (p < 0.0001); and for 21F, the flow rates were 4.3 +/- 0.4 and 2.7 +/- 0.3 L/min, respectively (p < 0.0001). The percentage increase of flow for the 27, 25, and 21F sizes were 34% +/- 9%, 42% +/- 16%, and 53% +/- 18%, respectively (one-way analysis of variance, p = 0.014). CONCLUSIONS: For the present set-up, the Smart cannula outperforms commercially available percutaneous cannulas. The smaller the size of the insertion site, we observed a higher gain of flow with the Smart cannula.
Mots-clé
Animals *Cardiac Surgical Procedures Carotid Arteries Catheterization/*instrumentation Cattle Equipment Design Jugular Veins *Thoracoscopy
Pubmed
Web of science
Création de la notice
28/01/2008 9:28
Dernière modification de la notice
20/08/2019 16:13
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