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PubMed Central (PMC3 - NLM DTD) (2,805,745 recursos)
Archive of life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM).

The International Journal of Angiology : Official Publication of the International College of Angiology, Inc

Mostrando recursos 1 - 20 de 231

1. Coronary Arteriovenous Fistulae: A Review - Challoumas, Dimitris; Pericleous, Agamemnon; Dimitrakaki, Inetzi A.; Danelatos, Christos; Dimitrakakis, Georgios
Coronary arteriovenous fistulae are a coronary anomaly, presenting in 0.002% of the general population. Their etiology can be congenital or acquired. We present a review of recent literature related to their epidemiology, etiology, pathophysiology, clinical presentation, diagnostic approach, and therapeutic management.

2. Improvements of Venous Tone with Pycnogenol in Chronic Venous Insufficiency: An Ex Vivo Study on Venous Segments - Belcaro, Gianni; Dugall, Mark; Luzzi, Roberta; Hosoi, M.; Corsi, Marcello
This study evaluated the stretching and dilatation of venous segments ex vivo in subjects with primary varicose veins in comparison with comparable segments from subjects that used the supplement Pycnogenol (150 mg/d) for 3 months before surgery. Subjects with varicose veins and chronic venous insufficiency voluntarily used Pycnogenol for a period of at least 3 months. The segments of veins removed with surgery (in 30 subjects that had used Pycnogenol and in 10 comparable control subjects that had not used the supplement) were compared with normal, unused vein segments harvested for bypass grafting. The segments were suspended and a weight...

3. Catheter Aspiration after Every Stage during Primary Percutaneous Angioplasty; ADMIT Trial - Turgeman, Yoav; Bushari, Limor Ilan; Antonelli, Dante; Feldman, Alexander; Yahalom, Malka; Bloch, Lev; Suleiman, Khalid
We assess the epicardial and microcirculation flow characteristics, and clinical outcome by using catheter aspiration after each stage of primary percutaneous coronary intervention (PPCI). Conflicting data are reported regarding early and late benefit of using aspiration catheter in the initial phase PPCI.

4. Factors Associated with Completion of Pre–Kidney Transplant Evaluations - Siskind, Eric; Alex, Asha; Alexander, Mohini; Akerman, Meredith; Mathew, Christine; Fishbane, Lara; Thomas, Jisha; Israel, Ezra; Fana, Melissa; Evans, Cory; Godwin, Andrew; Agorastos, Stergiani; Mellace, Barbara; Rosado, Jesus; Rajendran, Prejith P.; Krishnan, Prathik; Ramadas, Poornima; Flecha, Antonette; Kiernan, Lisa; Morgan, Ruth M.; Ali, Nicole; Sachdeva, Mala; Calderon, Kellie; Hong, Susana; Kaur, Jasmeet; Basu, Amit; Nicastro, Jeffrey; Coppa, Gene; Bhaskaran, Madhu; Molmenti, Ernesto
This study sought to examine various factors that may prevent transplant candidates from completing their transplant workup prior to listing. We reviewed the records of 170 subjects (cases = 100, controls 70) who were either on dialysis or had less than 20 mL/min creatinine clearance and were therefore candidates for preemptive transplantation. Approximately, 56% of preemptive patients completed their workup, while only 36% of patients on dialysis completed their workup. Our data revealed that factors contributing toward completion of workup included intrinsic motivation (four times more likely), lack of specific medical comorbidities (three times more likely), and preemptive status (two times more...

5. Low Levels of Serum Soluble Receptors for Advanced Glycation End Products, Biomarkers for Disease State: Myth or Reality - Prasad, Kailash
Advanced glycation end products (AGEs) interact with the receptor for AGEs (RAGE) on the membrane and induce deleterious effects via activation of nuclear factor kappa-B, and increased oxidative stress and inflammatory mediators. AGEs also combine with circulating soluble receptors (endogenous secretory RAGE [esRAGE] and soluble receptor for RAGE [sRAGE]) and sequester RAGE ligands and act as a cytoprotective agent. esRAGE is secreted from the cells and is a spliced variant of RAGE. The sRAGE on the other hand is proteolytically cleaved from cell surface receptor via matrix metalloproteinase (MMPs). sRAGE is elevated in type 1 and type 2 diabetes and...

6. Successful Treatment of Myocardial Bridge with Alcohol Septal Ablation in Hypertrophic Obstructive Cardiomyopathy - Sunbul, Murat; Kepez, Alper; Tigen, Kursat; Erdogan, Okan; Mutlu, Bulent
Hypertrophic obstructive cardiomyopathy (HOCM) is characterized by left ventricular hypertrophy of various morphologies, with variety of clinical manifestations and hemodynamic dysfunctions. Myocardial bridge (MB) is frequently seen in HOCM patients and the decrease of flow in the coronary artery segment going intramurally through the myocardium beneath a muscle bridge is also associated with angina, myocardial ischemia, arrhythmia, and sudden death in these patients. We present here a rare case of successful treatment of MB with alcohol septal ablation in hypertrophic cardiomyopathy which has not been reported previously.

7. Chronic Total Artery Occlusions in Noninfarct-Related Coronary Arteries - Ozeke, Ozcan; Gungor, Mutlu; Topaloglu, Serkan; Aras, Dursun; Ozer, Can
It has been rarely encountered some patients in clinical practice with coronary artery chronic total occlusion (CTO) on angiography but no any clinical history or electrocardiographic, echocardiographic, or left ventriculographic evidence of previous myocardial infarction. These noninfarct-related artery CTO (non-IRA CTO) lesions may be used as a clinical role model of endogenous cardioprotective mechanisms in addition to continuing the process of atherosclerosis. The objective of this study was to characterize the clinical characteristics of patients with non-IRA CTO patients and compared them to those with infarct-related CTO (IRA-CTO). We reviewed our invasive cardiology database searching for the CTO of any...

8. Is Radial Access and Transradial Cardiac Catheterization Feasible without the Use of Any Vasodilator? - Izgi, Cemil; Feray, Hasan
This is a “proof of concept” study to assess feasibility of transradial access without use of vasodilators. Radial artery spasm (RAS) is an important cause of patient discomfort and procedural failure with use of radial access. Vasodilators are routinely used to prevent RAS. However, the use of vasodilators may not be appropriate in substantial groups of patients. These include patients with myocardial infarction and low blood pressure who will benefit from radial access the most. No specific recommendations about use of vasodilators in these settings are stated on consensus documents on radial access. During a short period of shortage of...

9. Predicting the Occurrence of Oxygenation Impairment in Patients with Type-B Acute Aortic Dissection - Tomita, Kazunori; Hata, Noritake; Kobayashi, Nobuaki; Shinada, Takuro; Shirakabe, Akihiro
Complicated respiratory failure requiring mechanical ventilation in patients with type-B acute aortic dissection (AAD) has been previously reported, and inflammatory reactions have been found to be associated with the occurrence of oxygenation impairment (OI). However, the possibility of predicting the occurrence of OI in patients with type-B AAD has not yet been evaluated. This study was performed to investigate the possibility of predicting the occurrence of OI in type-B AAD. In this study, 79 type-B AAD patients were enrolled to investigate the possibility of predicting the occurrence of OI. OI was defined as Po 2/Fio 2 ≤ 200. Patient characteristics, type of AAD,...

10. Arterio-Enteric Fistula in Failed Enteric-Drained Pancreas Transplants: An Impending Danger - Villa, Manuel; Siskind, Eric; Jaimes, Natalia; Eckstein, Donna; Bhaskaran, Madhu; Sachdeva, Mala; Jhaveri, Kenar; Calderon, Kellie; Greben, Craig; Sharan, Lauren; Coppa, Gene; Krishnasastry, Kambhampaty; Molmenti, Ernesto; Nicastro, Jeffrey
Enteric drainage is the preferred method of exocrine diversion in simultaneous kidney–pancreas transplantation. Because of improvements in immunosuppression, enteric drainage has become the preferred method of pancreas transplantation in general. Although associated with less potential complications than bladder-drained pancreas, potentially lethal arterio-enteric fistulas in the setting of nonfunctioning allografts represent a constant threat. We herein present a case report, a review of the literature, and a call for caution.

11. Renosplenic Shunting in the Nutcracker Phenomenon: A Discussion and Paradigm Shift in Options? A Novel Approach to Treating Nutcracker Syndrome - Yih, Ng Deborah Chieh; Chyen, Lee Hwee; Cunli, Yang; Jaywantraj, Punamiya Sundeep; Isip, Azucena Benedict Cesar; Anil, Sule Ashish
The nutcracker syndrome is a rare clinical manifestation of symptoms caused by the compression of the left renal vein by an overriding superior mesenteric artery, an anatomical variant otherwise known as the nutcracker phenomenon. Usually present in women and children, when symptomatic, it commonly presents with hematuria, proteinuria, and chronic pelvic pain. Effective modalities of treatment apart from conservative management, include both invasive surgical procedures such as renal vein transposition and autotransplantation of the kidney and more popular recently, the less invasive endovascular stenting. Both options, however, are not without complications, such as, retroperitoneal hematomas or stent migration, thrombosis and...

12. Poor Outcome of Bilateral Lower Extremity Morel-Lavallee Lesions: A Case Report - Stanley, Sharon S.; Molmenti, Ernesto P.; Siskind, Eric; Kasabian, Armen K.; Huang, Su-I D.
The Morel-Lavallee lesion is a closed, internal degloving injury that results when a strong, shearing force is applied parallel to the plane of injury, as is common in vehicular trauma. It is an underdiagnosed entity that is often missed during the initial trauma workup as symptoms can be subtle. There are few reports of lesions occurring below the knee. Most cases affect the proximal thigh and trochanter, as these tend to be dependent areas in high velocity trauma. To the best of our knowledge, this is the first literature report of bilateral lower extremity Morel-Lavallee lesions.

13. Determinants of Left Ventricular Hypertrophy in Hypertensive Patients: Identification of High-Risk Patients by Metabolic, Vascular, and Inflammatory Risk Factors - Peer, Maya; Boaz, Mona; Zipora, Matas; Shargorodsky, Marina
Left ventricular hypertrophy (LVH) is recognized as an independent predictor of cardiovascular morbidity and mortality in hypertensive patients. Thus, it is critical to understand the mechanisms underlying the development of LVH for formulation screening and treatment strategies. This study was designed to determine the association between echographically determined LVH measures and markers of inflammation, neurohormonal activity, glomerular function, oxidative stress, insulin resistance, and vascular endothelial function. In this study, 129 hypertensive subjects were evaluated for lipids, glucose, HbA1C, insulin, homeostasis model assessment-insulin resistance, C-reactive protein (CRP), urinary microalbumin, homocysteine, aldosterone, renin, and endothelin. LVH parameters including interventricular septum thickness, posterior...

14. A Rare Case of Acute Pulmonary Embolism after Coronary Angiography due to Sand Bag Compression - Kivrak, Tarik; Durmus, Erdal; Atas, Halil; Sunbul, Murat; Sari, Ibrahim
Pulmonary embolism (PE) is very rare after coronary angiography. We present here a case of acute PE after coronary angiography due to sand bag compression which has not been reported previously. After the femoral sheath removal, patient was immobilized for 6 hours with a sand bag on his right femoral artery area. After the removal of sand bag, patient stood up with the help of a nurse. Immediately after standing up, patient complained sudden onset of dyspnea, lost his consciousness, and suddenly fell on the ground while hitting left occipital region of his head. Clinical, echocardiographic, laboratory, and tomographic findings...

15. Prevalence and Predictors of Left Ventricular Diastolic Dysfunction in a Hispanic Patient Population - Castro, Carlos E. Rodríguez; Lyapin, Alexander; Pattathan, Mithun; Negrin, José; Mukherjee, Debabrata
Minimal data exist on attributes of diastolic dysfunction in the Hispanic population. The purpose of this study was to evaluate the prevalence and predictors of diastolic dysfunction in a Hispanic patient population. We performed a retrospective review of 166 consecutive echocardiograms in a southwestern Texas Hospital that caters to a large Hispanic patient population. We identified all echocardiograms that met criteria for diastolic dysfunction and assessed baseline demographics and comorbidities in the cohort of Hispanic patients. A multivariate analysis was performed to identify the independent predictors of diastolic dysfunction. A total of 129 out of 166 patients (77.8%) were of...

16. Rare Case of “Wandering Artery of Drummond” As a Result of Chronic Triple Mesenteric Vessel Occlusion Treated by Isolated Angioplasty and Stenting of the Inferior Mesenteric Artery - Shah, Tejaskumar; Singh, Mukesh; Bhuriya, Rohit; Kovacs, Daniela; Khosla, Sandeep
We report a rare clinical scenario of chronic mesenteric ischemia (CMI) patient with obstruction of all the three major gut vessels including celiac, superior mesenteric artery (SMA), and inferior mesenteric artery (IMA) with a sole artery supplying the collaterals through marginal artery of left colon (the “wandering artery of Drummond”). A 70-year-old man was presented to hospital with acute onset of dyspnea, diaphoresis, severe epigastric pain, nausea, and vomiting that started after lunch. Initially, patient was diagnosed and treated for non-ST elevation myocardial infarction (NSTEMI). Furthermore, work-up, including computed tomographic scan of abdomen followed by angiogram, revealed 100% obstruction of...

17. A Case of Aortic Regurgitation and Hypotension - Chan, Laura Lihua; Chin, Chee Tang
Takayasu arteritis is a chronic inflammatory large vessel vasculitis affecting the aorta and its main branches. It can present in various forms, and thereby may lead to a delay in diagnosis. We present a patient with Takayasu arteritis, diagnosed at our center when she presented with severe aortic regurgitation. We also review the current knowledge base with respect to Takayasu arteritis.

18. Edaravone Suppresses Reperfusion Injury following Leg Ischemia in Rats: A Transmission Electron Microscopic Study - Yamamura, Mitsuhiro; Miyamoto, Yuji; Mitsuno, Masataka; Tanaka, Hiroe; Ryomoto, Masaaki; Fukui, Shinya
It is well known that free radicals cause reperfusion injury following leg ischemia. We showed that the free radical scavenger, edaravone (Radicut, Mitsubishi Tanabe Pharma Co., Osaka, Japan), might suppress reperfusion injury in rat. In this study, we used transmission electron microscope (TEM) to investigate how edaravone suppresses reperfusion injury by focusing on glycogen granules in the lower extremity muscles. Male Lewis rats (582 ± 35 g) were intraperitoneally injected with edaravone (3.0 mg/kg, edaravone group, n = 5) or the same dose of saline (control group, n = 5). The rat reperfusion injury models were induced by clamping the bilateral common femoral arteries for 5...

19. Secoisolariciresinol Diglucoside (SDG) Isolated from Flaxseed, an Alternative to ACE Inhibitors in the Treatment of Hypertension - Prasad, Kailash
Secoisolariciresionol diglucoside (SDG) is a plant lignan isolated from flaxseed and is phytoestrogen. SDG is a potent and long-acting hypotensive agent. Plant phytoestrogens have inhibitory effects on angiotensin-converting enzyme (ACE). The hypotensive effects of SDG, a phytoestrogen, may be mediated through inhibition of ACE. The objective of this study was to investigate if SDG-induced hypotension is mediated through inhibition of ACE. The Sprague Dawley male rats were anesthetized and trachea was cannulated. The right jugular vein was cannulated to administer the drug and the carotid artery was cannulated to record arterial pressures using PIOEZ-1 miniature model transducer (Becton, Dickinson and...

20. Repair of Vascular Ring with Resection of Kommerell Diverticulum and Transposition of Aberrant Left Subclavian Artery - Samas, John; Manetta, Frank; Meyer, David B.
A 32-year-old female presented with dysphagia. Radiographic studies revealed external compression of esophagus by a vascular ring. The anatomy was a right-sided aortic arch with aberrant retroesophageal left subclavian artery, emanating from a large Kommerell diverticulum (KD). Traditional repair with ligamentum division and adhesiolysis leaves a large KD still adjacent to the esophagus with the potential for persistent or recurrent symptoms. The objective of this study was the modification of operative technique to minimize the potential for persistent or recurrent symptoms. The operative repair included resection of KD with transposition of the left subclavian artery into the left carotid artery,...

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