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- 저자 : ( Phillip Dinh ) (검색결과 2 건)
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Use of Paclitaxel Eluting Stents in Arteriovenous Fistulas: A Pilot Study
Krystal Dinh,Shannon D. Thomas,Tae Cho,John Swinnen,Phillip Crowe,Ramon L. Varcoe 대한혈관외과학회 2019 Vascular Specialist International Vol.35 No.4
Purpose: We report short-term patency outcomes of a proof of concept study conducted to determine the efficacy of drug-eluting stent (DES) for the treatment of arteriovenous fistula (AVF) stenosis in hemodialysis patients. Materials and Methods: This is a single-center, retrospective observational study involving 10 patients with AVF dysfunction treated with DESs between January 2017 and December 2017. The primary outcome was AVF patency confirmed by sonographic and clinical assessment at 1 month and 6 to 9 months after treatment. Results: A total of 12 DESs were deployed in 10 patients with dysfunctional AVF (radiocephalic: 7, brachiocephalic: 3). During the early follow up (mean: 28.6 days), primary access circuit and DES patency was 100%, with an average volume flow rate of 886.4 mL/min. Nine patients were available for short-term follow up (mean: 202.4 days; 1 unrelated death), with a mean volume flow rate of 1,048.9 mL/min. The primary DES patency was 7/9 (77.8%), and 3 patients required angioplasty at other parts of the circuit (primary access circuit patency: 4/9 [44.4%]). The assisted primary access circuit patency was 77.8%. In 2 patients, the ultrasound revealed that the DESs were thrombosed without any antecedent stenosis; they were salvaged with angioplasty. Both patients previously underwent 2 DESs implanted and recently stopped dual antiplatelet therapy. B-mode sonographic assessment at all timepoints showed minimal intimal ingrowth on the stent struts. Conclusion: This study demonstrates acceptable short-term patency for DESs in the treatment of AVF stenosis. Dual antiplatelet therapy is probably mandatory in the short term.
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( W Ray Kim ),( Rohit Loomba ),( Selim Gurel ),( John Flaherty ),( Eduardo B Martins ),( Leland J Yee ),( Phillip Dinh ),( Maria Buti ),( Patrick Marcellin ) 대한간학회 2013 춘·추계 학술대회 (KASL) Vol.2013 No.1
Background: Patients with chronic hepatitis B Virus (HBV) infection are at increased risk for hepatocellular carcinoma (HCC). Population-based studies have suggested an increased risk of hepatocellular carcinoma (HCC) in patients with higher levels of HBV-DNA. Therefore, it is possible that anti-viral therapy that reduces HBV-DNA levels may reduce the occurrence of HCC. We examined the clinical and demographic characteristics of HCC cases in patients receiving tenofovir disoproxil fumarate (TDF). Methods: We studied the clinical and demographic characteristics of the 641 patients enrolled in pivotal studies GSUS- 174-0102 and GS-US-174-0103. Results: During the first 288 weeks of studies 102/103, there were 13 cases of HCC. Three cases occurred during the first 48 weeks. 9/13 cases were HBeAg-negative and 3 of these were cirrhotic. 4/13 cases were HBeAg-positive at baseline and 3 of these were cirrhotic. 11/13 cases were male. 2/13 patients had regression of histological cirrhosis on repeat liver biopsies. Among the 13 HCC cases, 5 were genotype (gt)-D, 4 gt-C, 1 gt- B, 1 gt-E, 1 gt-F and 1 unable to genotype. Conclusions: In 288 weeks of TDF therapy, there were only 13 cases of HCC. 3 of the HCC cases were reported within the first 48 weeks of therapy. Despite the small number of cases, HCC surveillance needs to be done in patients on long-time oral antivirals.
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