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Twin valve caval stent for functional replacement of incompetent tricuspid valve: a feasibility animal study

J. Sochman, JH. Peregrin, D. Pavcnik, BT. Uchida, HA. Timmermans, M. Shimohira, YH. Choi, FS. Keller, J. Rösch

. 2011 ; 34 (1) : 174-179.

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc12027248
E-zdroje Online Plný text

NLK ProQuest Central od 1997-01-01 do Před 1 rokem
Medline Complete (EBSCOhost) od 2003-02-01 do Před 1 rokem
Nursing & Allied Health Database (ProQuest) od 1997-01-01 do Před 1 rokem
Health & Medicine (ProQuest) od 1997-01-01 do Před 1 rokem

Odkazy

PubMed 21127868
DOI 10.1007/s00270-010-0039-0
Knihovny.cz E-zdroje

OBJECTIVE: To evaluate feasibility of a twin valve caval stent (TVCS) for functional replacement of an incompetent tricuspid valve (TV) in an acute animal study. METHODS: One swine and three sheep were used in the study. TVCS placement was tested in a swine with a normal TV. TVCS function was tested in three sheep with TV regurgitation created by papillary muscle avulsion. Cardiac angiograms and pressure measurements were used to evaluate TVCS function. Two sheep were studied after fluid overload. RESULTS: TVCS was percutaneously placed properly at the central portions of the superior vena cava (SVC) and inferior vena cava (IVC) in the swine. Papillary muscle avulsion in three sheep caused significant tricuspid regurgitation with massive reflux into the right atrium (RA) and partial reflux into the SVC and IVC. TVCS placement eliminated reflux into the SVC and IVC. After fluid overload, there was enlargement of the right ventricle and RA and significant increase in right ventricle, RA, SVC, and IVC pressures, but no reflux into the IVC and SVC. CONCLUSION: The results of this feasibility study justify detailed evaluation of TVCS insertion for functional chronic replacement of incompetent TV.

Citace poskytuje Crossref.org

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