Sujith Chacko

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Ernesto Castaneda

American University

Fabio Cuzzolin

Oxford Brookes University

Friederike Moltmann

Centre National de la Recherche Scientifique / French National Centre for Scientific Research

José Francisco Pessanha

UERJ - Universidade do Estado do Rio de Janeiro / Rio de Janeiro State University

Yogendra Chaubey

Concordia University (Canada)

Güzin Özdağoğlu

Dokuz Eylül University

Adnan Awad

The University Of Jordan

E.i.abdul Sathar

University of Kerala

Sylvia Frazier-Bowers

University of North Carolina at Chapel Hill

Jerzy W Rozenblit

The University of Arizona

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Papers by Sujith Chacko

Transseptal Ascending Aortic Access and Snare-Assisted Pull Down of the Delivery System to Facilitate Stent-Graft Passage in the Aortic Arch During TEVAR

Journal of Endovascular Therapy, 2013

To report the initial use of a transseptal snare-assisted pull-down technique to facilitate stent... more To report the initial use of a transseptal snare-assisted pull-down technique to facilitate stent-graft passage in the aortic arch. A 27-year-old man with Takayasu arteritis presented with large aneurysms in the aortic arch and descending aorta. During thoracic endovascular aortic repair (TEVAR), stent-graft passage through the aortic arch was impossible due to recurrent upward prolapse of the delivery system in the arch aneurysm. The problem was resolved in two steps. First, antegrade ascending aortic access was obtained through a transseptal sheath. The sheath was stabilized by an indwelling transseptal guidewire held taut by a snare in the descending aorta. Next, simultaneously pushing inward on the stent-graft system from the groin and pulling down on the stiff delivery guidewire using another snare introduced through the transseptal sheath moved the wire/delivery system as a unit through the arch. Both aneurysms were successfully excluded; flow into the aortic arch branches was preserved using chimney grafts. Use of antegrade ascending aortic access through a stabilized transseptal sheath and snare-assisted pull down of the delivery system to facilitate retrograde stent-graft passage in the aortic arch made it possible to complete the TEVAR procedure in difficult arch anatomy.

Carbon dioxide Angiography-Guided Renal-Related Interventions in Patients with Takayasu Arteritis and Renal Insufficiency

Cardiovascular and interventional radiology, Jan 16, 2018

Use of iodinated contrast agents for angiography in patients with renal insufficiency risks furth... more Use of iodinated contrast agents for angiography in patients with renal insufficiency risks further deterioration of renal function and its adverse sequelae. To study the effectiveness and safety of carbon dioxide (CO) angiography in guiding percutaneous renal-related interventions in patients with Takayasu arteritis and renal insufficiency. Data on COangiography-guided interventions were obtained from a 23-year database of 692 Takayasu arteritis patients who underwent percutaneous interventions and were analyzed retrospectively. Follow-up data were also obtained. The COangiography system used was developed in-house and was pressure-driven. Seven patients (6 female, age 16-59 years, baseline serum creatinine 1.62-4.55 mg/dl, estimated glomerular filtration rate 12.2-36.9 ml/min/1.73 m) underwent COangiography-guided interventions: five underwent angioplasty or stenting to treat six stenotic/occluded renal arteries, one underwent extensive endovascular repair for spontaneous focal ab...

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Transseptal ascending aortic access facilitates transcatheter embolization of proximal type I endoleak associated with bird-beak configuration of an endograft in the proximal aortic arch

Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists, 2014

To report the initial use of antegrade transseptal ascending aortic access to perform transcathet... more To report the initial use of antegrade transseptal ascending aortic access to perform transcatheter embolization of a proximal type I endoleak associated with bird-beak configuration of an endograft in the proximal aortic arch. A 61-year-old man underwent endovascular repair of a large, symptomatic aortic arch aneurysm located distal to the left common carotid artery using a fenestrated endograft. Completion angiography showed bird-beak configuration of the proximal endograft and a large type Ia endoleak. In a separate procedure, the endoleak was embolized with cyanoacrylate glue via an antegrade ascending aortic access obtained through a transseptal sheath stabilized by an indwelling arteriovenous wire loop. This approach provided straight-line access into the endoleak with requisite catheter support, and complete thrombosis of the aneurysm sac was achieved. The patient's symptoms abated, and at 1-year follow-up, there was no endoleak, and the aneurysm sac had shrunken markedly...