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RISS 인기검색어
- 검색키워드
- 저자 : Mathew Cherian (검색결과 3 건)
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Rinoy R Anand,Mathew Cherian P,Pankaj Mehta,Jenny M Gandhi,Elango S,Santosh B Patil 한국간담췌외과학회 2019 Annals of hepato-biliary-pancreatic surgery Vol.23 No.2
Arterio-portal fistulas (APFs) are characterized by anomalous communication between arteries and the portal vein (PV) system. Treatment of APF is imperative as an emergency or if there is development of portal hypertension/heart failure in chronic cases. Both endovascular and surgical managements can be attempted, however since endovascular management carries comparatively low intra and post procedural morbidity it is mostly preferred. This is a case report on endovascular management of post-traumatic pseudoaneurysm arising from bifurcation of common hepatic artery with complete disruption of the gastroduodenal artery and high-flow APF. This report describes the intraprocedure challenges in exclusion of fistula from the circulation, without disruption of portal system and anticipation of recruitment of new collateral feeders to the fistula immediate post exclusion with its embolization, which needs appropriate positioning of the catheter prior to exclusion of the fistula.
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Katsumi Kobayashi,K. Sadasivan Pillai,Mathews Michael,K.M. Cherian,Mariko Ohnishi 한국실험동물학회 2010 Laboratory Animal Research Vol.26 No.2
In repeated-dose 28-day oral toxicity study design, the low dose is fixed as the no observed effect level (NOEL). But, in practice the low dose usually shows significant difference in few measurable items in most of the studies. We investigated 109 of repeated-dose 28-day oral toxicity studies in rats conducted according to the Chemical Substance Control Law, Japan and examined the measurable items (functional observational battery, urinalysis, hematology, blood chemistry and absolute and relative organ weights) of the low dose group which showed a statistical significant difference (P<0.05) compared to the respective control groups. The investigation revealed that, 205/12,167 (1.6%) measurable items showed a significant difference in the low dose groups. The significant difference shown by urinalysis was high (3.3%), followed by clinical chemistry parameters, hematology, relative organ weights and absolute organ weights (1.8-1.1%). We conclude from the investigation that the low dose may be considered as NOEL, if the significant difference of measurable items of it is about 2% (maximum <5%), compared to the control. However, due consideration may be given to the clinical relevance of the items that showed a significant difference.
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REtrospective Multicenter INdian Study of Derivo Embolization Device (REMIND): Periprocedural Safety
Niranjan Prakash Mahajan,Mudasir Mushtaq,Amit Bhatti,Sukalyan Purkayastha,Nitin Dange,Mathew Cherian,Vipul Gupta,Vikram Huded 대한신경중재치료의학회 2021 Neurointervention Vol.16 No.3
Purpose: The treatment of aneurysms with characteristics such as complex morphology, fusiform, blister-like, wide neck, or large size has been revolutionized with the introduction of flow diverters. Though flow diverters have several advantages over coiling, they also have certain important disadvantages such as the lack of immediate protection against rupture, the risk of ischemic stroke, the need for antiplatelet therapy, and long latency for complete effect. The Derivo Embolization Device (DED) is a second-generation self-expanding device that is claimed to be less thrombogenic than conventional devices. We retrospectively evaluated the periprocedural safety and risks associated with the DED across 5 centers in India. Materials and Methods: This is a multicentric, retrospective, observational study of DED, conducted at 5 high volume endovascular therapy centers in India from May 2018 to June 2020. Periprocedural demographic, clinical, and angiographic data were collected from a retrospective review of patient charts. Results: A total of 96 patients, including 56 (58.3%) females, aged between 16–80 years (60±12.7 years) harboring 106 aneurysms were studied. Seven (7.3%) were noted to harbor multiple aneurysms: 6 had 3 aneurysms each, while 1 patient had 5 aneurysms. The following aneurysm characteristics were noted: average size, 9.8±8.2 mm; average neck size, 6.9±8.5 mm; wide-necked (>4 mm), 63 (59.4%); giant (>25 mm), 8 (7.5%); and anterior circulation location, 98 (92.5%). Eighteen (17%) of these were ruptured. Additional balloon angioplasty was performed in 5 (5.2%) patients. Intraprocedural problems were encountered in 3 (3.1%), of which only 1 had clinical implications, the device fish-mouthing with stent thrombosis resulting in a malignant middle cerebral artery territory infarction. The modified Rankin scale at 3 months was worse in 1 patient. Conclusion: DED is a newer generation flow diverter stent with a low periprocedural complication rate.
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