Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Catherine A. Pipenhagen is active.

Publication


Featured researches published by Catherine A. Pipenhagen.


International Journal of Cardiology | 2017

Comparison of branch and distally focused main renal artery denervation using two different radio-frequency systems in a porcine model

Felix Mahfoud; Catherine A. Pipenhagen; L. Boyce Moon; Sebastian Ewen; Saarraaken Kulenthiran; Jeffrey M. Fish; James A. Jensen; Renu Virmani; Michael Joner; Kazuyuki Yahagi; Costas Tsioufis; Michael Böhm

OBJECTIVES Anatomic placement of lesions may impact efficacy of radio-frequency (RF) catheter renal denervation (RDN). However, it is unclear if it is necessary to perform treatments post bifurcation with systems that may provide deeper penetration to achieve successful RDN. METHODS Sixteen domestic swine (n=16) were randomly assigned to 4 groups: 1) 8 lesions created in the branch arteries using the Spyral catheter (SP8); 2) 8 lesions created in the branch arteries plus 4 lesions created in the main artery using the SP catheter (SP12); 3) 8 lesions created in the main artery using the EnligHTN catheter with the distal position as close as possible to the bifurcation (EN8); and 4) 12 lesions created in the main artery using the EN catheter with the distal position as close as possible to the bifurcation (EN12). RESULTS Each arm showed statistically significant changes in kidney norepinephrine (NE, ng/g) between treated kidneys vs. untreated contralateral control. There were no statistically significant differences in tissue NE% reductions across each arm based on catheter, anatomic location, & number of lesions (p=0.563): EN8 -74±34%, EN12 -95±3%, SP8 -76±16%, SP12 -82±17% (p=0.496). A total of 46 lesions were measured for lesion depth: EN main (3.3±2.8mm) vs. SP branch (2.0±1.0mm, p=0.039), SP main (2.9±1.6mm) vs. SP branch (p=0.052), and EN main vs. SP main (p=0.337). CONCLUSIONS Distally-focused main renal artery treatment using the EN system appears to be equally efficacious in reducing tissue NE levels compared with SP treatment in the branches plus main renal arteries, advocating for device-specific procedure execution.


Archive | 2003

Suture based vascular closure apparatus and method incorporating a pre-tied knot

Kedar Ravindra Belhe; John Avi Roop; Catherine A. Pipenhagen


Archive | 2004

Vascular sealing device with high surface area sealing plug

Catherine A. Pipenhagen; Kedar Ravindra Belhe; John Avi Roop


Archive | 2005

Three-needle closure device

John Avi Roop; Kedar Ravindra Belhe; Catherine A. Pipenhagen


Archive | 2003

Loop closure apparatus and method

John Avi Roop; Kedar Ravindra Belhe; Catherine A. Pipenhagen


Archive | 2008

Vascular closure device having a flowable sealing material

Catherine A. Pipenhagen; Melissa K. Gardner; Jyue Boon Lim; William Fiehler; Gary James Schorr; Janet L. Jacobsen


Archive | 2006

Device and method for vascular closure

Raimar Boehlke; Kedar Ravindra Belhe; Catherine A. Pipenhagen


Archive | 2005

Suture loop closure device

Catherine A. Pipenhagen; John Avi Roop; Kedar Ravindra Belhe


Archive | 2007

Extra-vascular sealing device and method

Catherine A. Pipenhagen; Melissa K. Gardner; William Fiehler; Janet L. Jacobsen; Gary James Schorr; Jyue Boon Lim


Archive | 2006

Balloon insertion apparatus and method of sealing a tissue puncture

Kedar Ravindra Belhe; Michelle Boucha-Rayle; Catherine A. Pipenhagen

Collaboration


Dive into the Catherine A. Pipenhagen's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge