Read by QxMD icon Read


Matthijs In 't Veld, R Fronczek, J A de Laat, Henricus P M Kunst, Frederick J A Meijer, Peter W A Willems
OBJECTIVES: Finding the underlying cause for pulsatile tinnitus can be challenging. We aimed to determine the incidence of arteriovenous shunts, i.e., arteriovenous malformations (AVMs) or dural arteriovenous fistulas (dAVFs), in patients referred for catheter angiography (digital subtraction angiography [DSA]). Furthermore, we assessed which clinical features were predictive for the presence of such a lesion. STUDY DESIGN AND METHODS: Fifty-one patients with pulsatile tinnitus, who were referred to us for DSA to exclude an arteriovenous shunt, were enrolled, prospectively...
March 20, 2018: Otology & Neurotology
Kanyu Miyamoto, Naoya Matsuoka, Sumihisa Ono, Shinya Nakamura, Kohei Nagaya, Nao Asai, Kazuhiro Nishikawa, Yasuhiko Ito, Hirokazu Imai
INTRODUCTION: We report a case in which we performed an anastomotic part septal formation surgery (anastoplasty) and artificial blood vessel replacement surgery. CASE DESCRIPTION: When forearm arteriovenous fistula occlusion of a dialysis patient was observed, there was a thrombus in the vein of the whole forearm from the anastomotic part. We performed a septum formation surgery to suppress the blood flow in the vein near the anastomotic site, and artificial blood vessel replacement was performed on the high stenosis of the cephalic vein of the elbow...
March 1, 2018: Journal of Vascular Access
Mary Huerter, Dean Govostis, Martin Ellenby, Eduardo Smith-Singares
Indications for extra corporeal membrane oxygenation (ECMO) have expanded in recent years, and it has become an invaluable tool in the care of adult patients in severe cardiogenic shock or respiratory failure. Understanding the physiologic effect of ECMO has also further developed, allowing for improvements in the management of the potential morbidities associated with this technology. Here, we present a case of acute bowel ischemia that developed while the patient was on central venoarterial ECMO.
March 2018: Journal of Extra-corporeal Technology
Maxime Bretonnier, Pierre-Louis Henaux, Xavier Morandi, Pierre-Jean Le Reste
Brain arteriovenous malformations (AVM) are complex and highly challenging lesions, for which intra-operative indocyanin green fluorescence video angiography is widely used. Fluorescein video angiography (FVA) recently appeared as an alternative technique but the feasibility and usefulness of this technique is yet uncertain. This short series reports our preliminary experience of FVA in intracranial AVM surgery. We retrospectively studied the cases of seven patients who had FVA for an AVM surgery. The primary objective of this study was to assess the utility of FVA as judged by the surgeon...
March 17, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Katarzyna Kosinska-Kaczynska, Michal Lipa, Iwona Szymusik, Dorota Bomba-Opon, Robert Brawura-Biskupski-Samaha, Szymon Kozlowski, Lisanne S A Tollenaar, Dick Oepkes, Miroslaw Wielgos, Enrico Lopriore
We present the first case of a monochorionic twin pregnancy in which sudden hematologic changes occurred as a complication of the amnioreduction procedure for twin-twin transfusion syndrome (TTTS). At 33 weeks of gestation, 4 days after the amnioreduction, the recipient developed severe anemia while the donor developed severe polycythemia. Postnatal placental examination revealed several arteriovenous and venoarterial anastomoses, a pale placental mass of the recipient and a congested and plethoric placental mass of the donor...
March 20, 2018: Fetal Diagnosis and Therapy
S C Bertog, P A Sobotka, M D Lobo, K Sievert, L Vaskelyte, H Sievert, Roland E Schmieder
PURPOSE OF REVIEW: Provision of a summary on the physiologic effects of arteriovenous fistula creation and description of previously published human data on the efficacy of a percutaneously implanted device creating an arteriovenous fistula. Though antihypertensive therapy is effective, some patient's blood pressure remains poorly controlled despite adherence to optimal medical therapy. Moreover, some patients are not compliant with recommended medical therapy due to side effects or personal decision...
March 19, 2018: Current Hypertension Reports
Matteo Ripepi, Gianfranco Varetto, Lorenzo Gibello, Maria Antonella Ruffino, Paolo Fonio, Pietro Rispoli
Pelvic arteriovenous malformation (AVM) is a rare condition mostly requiring a complex therapeutic strategy. The surgical approach is challenging and burdened by relatively high mortality and morbidity rates. No guidelines are available for the endovascular treatment of AVM because the literature is limited to small case series and case reports. We present a complex case of a pelvic AVM associated with an internal iliac artery aneurysm in a patient previously treated with a common to external prosthetic substitution for aneurysm and proximal ligation of internal iliac artery...
March 2018: Journal of Vascular Surgery Cases and Innovative Techniques
Jennifer I Lim, Dingcai Cao
PURPOSE: To determine whether the retina is thinner in sickle cell patients than in race- and age-matched controls, and if it is thinner, whether there is any association with systemic diseases. METHODS: Sickle cell and control (age- and race-matched) patients were prospectively enrolled from a university retina clinic into this observational study. Participants underwent visual acuity testing, slit-lamp biomicroscopy, dilated ophthalmoscopy, and spectral domain optical coherence tomography imaging...
March 16, 2018: American Journal of Ophthalmology
Tomotaka Ohshima, Shigeru Miyachi, Naoki Matsuo, Reo Kawaguchi, Aichi Niwa, Ryuya Maejima, Taiki Isaji, Masakazu Takayasu
BACKGROUND AND PURPOSE: We report a secure endovascular approach for the treatment of vascular lesions of the posterior circulation. Even if a large profile guide catheter is wedged in the unilateral vertebral artery (VA), our VA flow reversal method can prevent ischemic complications, including the spinal cord infarction. CASE PRESENTATION: The patient was a 64-year-old woman who had been followed up for arteriovenous malformation (AVM) and an unruptured aneurysm of the basilar artery-superior cerebellar artery bifurcation...
March 16, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Suresh Giragani, Santhosh Kumar Pavunesan, Anandh Balasubramaniam
Cerebral proliferative angiopathy (CPA) is a rare vascular abnormality and separate from "classical" brain arteriovenous malformations. Haemorrhage due to proliferative angiopathy is rarely reported. We describe the clinical features, imaging findings and targeted endovascular management for a 12-year-old boy having proliferative angiopathy of the posterior fossa presenting with haemorrhage. Targeted endovascular embolisation in CPA is not previously described in the literature. The optimal treatment options for haemorrhagic CPA are debatable, and we wish to highlight the role of targeted treatment for culprit focal lesion demonstrable on imaging...
January 1, 2018: Interventional Neuroradiology
Takao Okawa, Masaaki Murakami, Ryo Yamada, Satoshi Tanaka, Kiyoshi Mori, Noriko Mori
PURPOSE: The population of obese patients is increasing in general and also at hemodialysis initiation. For successful cannulation of arteriovenous fistula, the National Kidney Foundation-Dialysis Outcome Quality Initiative guidelines suggest that the required maturation parameters are at a depth of <6 mm. There are several reports describing two-stage superficialization of arteriovenous fistulas in obese cases. Therefore, we investigated the utility and complications of one-stage superficialization of radio-cephalic fistula...
March 1, 2018: Journal of Vascular Access
Rohan Chawla, Amar Pujari, Kanhaiya Mittal, Vaishali Rakheja, Ashish Markan
Swept-source optical coherence tomography angiography (SS-OCTA) is a promising new imaging modality for assessing retinal and choroidal vasculature. Faster scanning speed, large number of A-scan acquisition, and enhanced depth penetration has enhanced the detailed analysis of retinal layers. The authors discuss SS-OCTA features of a rare case of retinal arteriovenous malformation. Image analysis revealed the anomalous large-caliber vessels occupying up to the entire retinal thickness with associated echolucent changes in the inner retinal layers surrounding the retinal vessels, along with disruption of the outer retinal layers, including the inner/outer segments of photoreceptors beneath the large tortuous vessels outside the foveola in absence of any capillary nonperfusion areas or lack of significant macular edema...
March 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Koki Wakamoto, Shigehiro Doi, Ayumu Nakashima, Toru Kawai, Yasufumi Kyuden, Takayuki Naito, Mariko Asai, Shunsuke Takahashi, Masaaki Murakami, Takao Masaki
PURPOSE: This study was performed to investigate the effect of the balloon dilation pressure on the 12-month patency rate in patients with failed arteriovenous fistulas undergoing hemodialysis. MATERIALS AND METHODS: In this multicenter, prospective, randomized trial, the 4-mm-diameter YOROI balloon was used for dilation of stenotic lesions. The balloons were inflated to a pressure of 8 atm (low-pressure group) or 30 atm to achieve complete expansion (high-pressure group)...
March 1, 2018: Journal of Vascular Access
Miltos K Lazarides, Christos Argyriou, Andreas Koutsoumpelis, Efstratios I Georgakarakos, George S Georgiadis
Thigh arteriovenous grafts are required in a number of patients with exhausted upper extremity veins and comprise 1%-5% of the total access procedures performed. Alternative autogenous lower extremity options are the rarely used sapheno-tibial arteriovenous fistulae, the saphenous vein transpositions, and the femoral vein transpositions. The latter have proven to be the most durable lower limb access procedures, with low infection rates and their primary patency rates ranged from 74% up to 87% at 2 years...
March 1, 2018: Journal of Vascular Access
Victoria E Jackson, Helen Hurst, Sandip Mitra
INTRODUCTION: Arteriovenous fistulae remain the gold standard of vascular access in haemodialysis. There is currently no consensus on standardised methods of monitoring arteriovenous fistulae. Assessment techniques and practice remain widely variable. The purpose of this study is to determine whether existing evidence supports physical assessment as an effective tool and a good predictor of arteriovenous fistulae dysfunction to allow for timely intervention and improve outcomes. METHODS: A literature search was performed using CINAHL, PubMed, Medline and BNI databases and relevant search terms...
March 1, 2018: Journal of Vascular Access
Mariusz Kusztal, Krzysztof Nowak
For arrhythmia treatment or sudden cardiac death prevention in hemodialysis patients, there is a frequent need for placement of a cardiac implantable electronic device (pacemaker, implantable cardioverter defibrillator, or cardiac resynchronization device). Leads from a cardiac implantable electronic device can cause central vein stenosis and carry the risk of tricuspid regurgitation or contribute to infective endocarditis. In patients with end-stage kidney disease requiring vascular access and cardiac implantable electronic device, the best strategy is to create an arteriovenous fistula on the contralateral upper limb for a cardiac implantable electronic device and avoidance of central vein catheter...
March 1, 2018: Journal of Vascular Access
Patrícia Leitão, André Carvalho, Conceição Guerra, José Gonçalves, Isabel Ramos
Hereditary hemorrhagic telangiectasia or Osler-Weber-Rendu syndrome is a rare autosomal dominant vascular disorder characterized by epistaxis, mucocutaneous telangiectasias, and arteriovenous malformations affecting various organs and systems. The liver is a commonly involved organ (74% of patients with hereditary hemorrhagic telangiectasia), although symptomatic liver disease is quite infrequent. In symptomatic cases, clinical manifestations relate most commonly to the predominant type of vascular shunting present (arteriovenous, arterioportal, or portovenous)...
February 2018: Radiology Case Reports
João Luiz Gomes Carneiro Monteiro, José Alcides Almeida de Arruda, Jefferson Luiz Figueiredo Leal, Laécio Leitão Batista, Suzana Célia de Aguiar Soares Carneiro, Belmiro Cavalcante do Egito Vasconcelos
PURPOSE: The aim of the present report is to describe 50 cases in the literature of mandibular arteriovenous malformations (AVMs) in which embolization was the primary treatment and to discuss details such as age, gender, materials used, outcome of embolization, time of follow-up, and intra- or postprocedure complications. An illustrative case in which reossification was noticed after embolization also is presented. PATIENTS AND METHODS: The study was carried out in 2 steps...
February 22, 2018: Journal of Oral and Maxillofacial Surgery
Hu-Lin Christina Wang, Jia-Hao Zhang, Cheng-Hung How
BACKGROUND: Pulmonary arteriovenous malformations are rare vascular abnormalities that permit direct communication between the pulmonary artery and vein. During pregnancy, pulmonary arteriovenous malformation carries an increased risk of enlargement and rupture, which could lead to life-threatening hemothorax. This is the first case reporting successful thoracoscopic surgery for a pregnant woman with pulmonary arteriovenous malformation rupture-related hemothorax. CASE PRESENTATION: We present a case of a 32-year-old pregnant Asian woman (31 weeks' gestation) whose pulmonary arteriovenous malformation ruptured, leading to right-sided spontaneous tension hemothorax...
March 19, 2018: Journal of Medical Case Reports
Fidaa Jablawi, Gerrit Alexander Schubert, Franz-Josef Hans, Michael Mull
OBJECT: Effectiveness and safety of anticoagulation therapy (AC) after treatment of spinal dural arteriovenous fistula (sdAVF) are still inadequately discussed in the literature and are the aim of this study. METHODS: We retrospectively analyzed our medical database for sdAVF patients treated in our institution between 2006 and 2016. Neurological status at time of admission, discharge and last follow-up was assessed via Aminoff-Logue disability score. Patient cohorts were dichotomized as group A: postoperative effective heparinization, and group B: routine thromboembolic prophylaxis with low-dose heparin...
March 14, 2018: World Neurosurgery
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"