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https://www.readbyqxmd.com/read/29241237/delayed-hyperbaric-intervention-in-life-threatening-decompression-illness
#1
Michael Fm Perez, Janet V Ongkeko Perez, April R Serrano, Maravic P Andal, Maria Cc Aldover
Arterial gas embolism is a catastrophic event. Bubbles in the arterial circulation may lodge in the brain and cause infarction in the affected area and/or in a coronary vessel causing acute myocardial ischaemia. There is no well-defined window of time beyond which a response to hyperbaric oxygen is not expected. Major improvement may occur if the patient is treated as soon as possible, but is less likely in divers with severe decompression illness who have delayed intervention. We report on a 51-year-old, male rebreather diver who suffered loss of consciousness and cardiovascular collapse within minutes of a 30-metre deep dive at a remote Micronesian dive site...
December 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/29241056/segmentation-of-arterial-walls-in-intravascular-ultrasound-cross-sectional-images-using-extremal-region-selection
#2
Mehdi Faraji, Irene Cheng, Iris Naudin, Anup Basu
Intravascular Ultrasound (IVUS) is an intra-operative imaging modality that facilitates observing and appraising the vessel wall structure of the human coronary arteries. Segmentation of arterial wall boundaries from the IVUS images is not only crucial for quantitative analysis of the vessel walls and plaque characteristics, but is also necessary for generating 3D reconstructed models of the artery. The aim of this study is twofold. Firstly, we investigate the feasibility of using a recently proposed region detector, namely Extremal Region of Extremum Level (EREL) to delineate the luminal and media-adventitia borders in IVUS frames acquired by 20 MHz probes...
December 6, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29240963/proximal-buddy-in-jail-technique-a-bail-out-technique-to-increase-guide-support
#3
Tao Tu, Jianjun Tang, Zhenfei Fang, Xinqun Hu, Liang Tang, Yanshu Zhao, Qiming Liu, Shenghua Zhou
BACKGROUND: During percutaneous coronary intervention, "buddy-in-jail" technique is often used to facilitate stent delivery in complex coronary artery lesions. However, the safety and efficacy of this technique when used with different jailed wire and applied in different target vessel lesions remain elusive. The aim of this retrospective study was to analyze the effectiveness of "buddy-in-jail" technique in the tortuous and rigid lesions of both the common and neighboring coronary arteries...
December 14, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29240962/long-term-outcomes-after-percutaneous-revascularization-of-complex-coronary-bifurcation-lesions-using-a-dedicated-self-expanding-biolimus-eluting-stent-system
#4
Andreas S Triantafyllis, Johan Bennett, Efstathios Pagourelias, Keir McCutcheon, Tom Adriaenssens, Peter R Sinnaeve, Walter Desmet, Christophe Dubois
BACKGROUND: To evaluate long-term clinical outcomes after treatment of complex bifurcation lesions with the AXXESS dedicated self-expanding biolimus A9-eluting bifurcation stent. METHODS: Between 2004 and 2013, 123 patients with complex bifurcation lesions were treated in a single center with the AXXESS stent in the proximal main vessel (MV) and additional drug-eluting stents in branches when required. Median follow-up was 5 years. Primary endpoint was the rate of major adverse cardiac events (MACE)...
December 14, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29240736/management-of-coronary-artery-disease-in-patients-on-dialysis
#5
Helen Pilmore, Mark Webster, Karishma Sidhu, Gajan Srikumar
AIMS: Coronary artery disease is common in patients with end-stage renal failure (ESRF). However, there is little evidence that revascularisation improves outcomes, compared with medical management. This study assessed survival and cardiovascular outcomes in patients with ESRF undergoing coronary angiography and then having coronary artery bypass graft (CABG) surgery, percutaneous coronary intervention (PCI) or medical management. METHODS: Survival and major adverse cardiac events (MACE) were examined in all patients with ESRF who underwent coronary angiography at Auckland City Hospital between 2003 and 2012...
December 15, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29238609/blunted-heart-rate-recovery-is-associated-with-coronary-artery-spasm-in-patients-with-suspected-vasospastic-angina
#6
Hyunsu Kim, Sang-Hoon Cho, Kyoung-Im Cho, Bong-Joon Kim, Sung-Il Im, Jung-Ho Heo
Background: Autonomic nervous system activity has been shown to be altered in patients with vasospastic angina (VA). Heart rate recovery (HRR) is a simple, non-invasive measurement of autonomic nervous system dysfunction. We aimed to investigate whether HRR is related to VA, as established by an ergonovine test. Methods: A total of 976 consecutive patients (47.5% male, mean age 55 years) without significant coronary artery disease who underwent both an ergonovine provocation test and a treadmill exercise test were enrolled...
2017: Clinical Hypertension
https://www.readbyqxmd.com/read/29237921/impact-of-proton-pump-inhibitors-on-the-pharmacodynamic-effect-and-clinical-outcomes-in-patients-receiving-dual-antiplatelet-therapy-after-percutaneous-coronary-intervention-a-propensity-score-analysis
#7
Pei Zhu, Zhan Gao, Xiao-Fang Tang, Jing-Jing Xu, Yin Zhang, Li-Jian Gao, Jue Chen, Shu-Bin Qiao, Yue-Jin Yang, Run-Lin Gao, Bo Xu, Jin-Qing Yuan
BACKGROUND: Prior studies have reported controversial conclusions regarding the risk of adverse cardiovascular events in patients using proton-pump inhibitors (PPIs) combined with clopidogrel therapy, causing much uncertainty in clinical practice. We sought to evaluate the safety of PPIs use among high-risk cardiovascular patients who underwent percutaneous coronary intervention (PCI) in a long-term follow-up study. METHODS: A total of 7868 consecutive patients who had undergone PCI and received dual antiplatelet therapy (DAPT) at a single center from January 2013 to December 2013 were enrolled...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29235306/comparison-of-everolimus-eluting-bioresorbable-vascular-scaffolds-and-metallic-stents-three-year-clinical-outcomes-from-the-absorb-china-randomised-trial
#8
Bo Xu, Yuejin Yang, Yaling Han, Yong Huo, Lefeng Wang, Xiangqian Qi, Jifu Li, Yundai Chen, Hai-Chien Kuo, Shih-Wa Ying, Wai-Fung Cheong, Yunlong Zhang, Xiaolu Su, Jeffery Popma, Runlin Gao, Gregg Stone
Aims: Absorb bioresorbable vascular scaffolds (BVS) and XIENCE cobalt-chromium everolimus-eluting stents (CoCr-EES) had comparable angiographic and clinical outcomes up to one year in patients enrolled in the ABSORB China randomised trial. Whether these favourable results with BVS continue beyond one year up to three years is unknown. In this study we sought to analyse the outcomes from the trial up to three-year follow-up. Methods and results: ABSORB China was a prospective, open-label, multicentre trial in which 480 patients with one or two native coronary artery lesions were randomised 1:1 to BVS (N=241) vs...
October 22, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29233364/epicardial-15-mhz-echocardiography-for-effective-repair-of-coronary-arteriovenous-fistula
#9
Masashi Komeda, Hirotomo Uchiyama, Sakurako Nakamura, Takashi Kusunose, Shoji Fujiwara, Toshimi Ujiie
In the era of catheter intervention, the surgical repair of coronary arteriovenous fistula needs to be free from residual shunt. Intraoperative epicardial 15-MHz echocardiography helps to find the residual shunt after ligation or obliteration of anomalous vessels. Here we report our method of the echo-assisted surgical repair of coronary arteriovenous fistula in 7 adult patients. The method made the operation for coronary arteriovenous fistula free from residual shunt, but care should be taken to the development of new vessels after the operation...
January 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29233231/coronary-sinus-ostial-atresia-with-persistent-left-superior-caval-vein-in-a-patient-with-congenitally-corrected-transposition-of-the-great-arteries
#10
Yuchen Zhang, Hugo V Alberdi, Elsie T Nguyen
We present a case of a 57-year-old man with congenitally corrected transposition of great vessels who was found to have coronary ostial atresia with cranial flow through left superior vena cava on CT with contrast injection in coronary tributaries. As such, he was ineligible for cardiac resynchronization therapy.
December 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29231013/-diagnostic-value-of-postmortem-ct-angiography-in-coronary-atherosclerosis
#11
H Qian, Y Shao, Z D Li, D H Zou, Z Q Qin, L Wan, Y J Chen
OBJECTIVES: To explore the application value of postmortem computed tomography (CT) angiography on diagnosis of coronary atherosclerotic stenosis degree. METHODS: Based on the previous experimental results, the postmortem CT angiography device of human isolated heart was improved. Different coronary atherosclerotic stenosis degree of sudden death cases was selected. Before the cardiac anatomy, hearts were removed out completely and CT angiography was performed immediately...
April 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29230421/association-of-vitamin-d-deficiency-and-degree-of-coronary-artery-disease-in-cardiac-patients-with-type-2-diabetes
#12
Ewelina A Dziedzic, Jakub S Gąsior, Mariusz Pawłowski, Marek Dąbrowski
Several modifiable factors may influence cardiac function in diabetic patients. The aim of the study was to evaluate the influence of vitamin D level on the stage of coronary atherosclerosis in cardiac patients diagnosed with type 2 diabetes. The study was performed in 337 consecutive patients undergoing coronarography. The stage of atherosclerosis was evaluated using Coronary Artery Surgery Study Score. The plasma 25(OH)D concentration was determined by an electrochemiluminescence method. Patients without significant lesions in coronary arteries presented the highest 25(OH)D level, significantly higher than patients with one-, two-, and three-vessel coronary artery disease (CAD) (p < 0...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29227870/impact-of-alcohol-drinking-on-acetylcholine-induced-coronary-artery-spasm-in-korean-populations
#13
Sung Min Sohn, Byoung Geol Choi, Se Yeon Choi, Jae Kyeong Byun, Ahmed Mashaly, Yoonjee Park, Won Young Jang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh, Seung-Woon Rha
BACKGROUND AND AIMS: Generally, immoderate alcohol consumption is associated with variant angina and accepted as one of the risk factors for coronary artery spasm (CAS), but evidence is lacking in this regard. The aim of this study is to evaluate the impact of alcohol consumption and drinking pattern on CAS by acetylcholine (ACH) provocation test and long-term clinical outcomes. METHODS: A total of 5491 patients with typical or atypical chest pain, without significant coronary artery disease, who underwent intracoronary ACH provocation test, were enrolled prospectively, and retrospectively analyzed in this study...
December 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29226547/avian-embryonic-coronary-arterio-venous-pattering-involves-the-contribution-of-different-endothelial-and-endocardial-cell-populations
#14
Paul Palmquist-Gomes, Juan Antonio Guadix, José M Pérez-Pomares
BACKGROUND: Coronary vasculature irrigates the myocardium and is crucial to late embryonic and adult heart function. Despite the developmental significance and clinical relevance of these blood vessels, the embryonic origin and the cellular and molecular mechanisms that regulate coronary arterio-venous patterning are not known in detail. In this study, we have used the avian embryo to dissect the ontogenetic origin and morphogenesis of coronary vasculature. RESULTS: We show that sinus venosus endocardial sprouts and proepicardial angioblasts pioneer coronary vascular formation, invading the developing heart simultaneously...
December 11, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/29223429/predicting-risk-of-cardiac-events-among-st-segment-elevation-myocardial-infarction-patients-with-conservatively-managed-non-infarct-related-artery-coronary-artery-disease-an-analysis-of-the-duke-databank-for-cardiovascular-disease
#15
Sameer A Hirji, Susanna R Stevens, Linda K Shaw, Erin C Campbell, Christopher B Granger, Manesh R Patel, Michael H Sketch, Tracy Y Wang, E Magnus Ohman, Eric D Peterson, J Matthew Brennan
BACKGROUND: Recent randomized evidence has demonstrated benefit with complete revascularization during the index hospitalization for multivessel coronary artery disease ST-segment elevation myocardial infarction (STEMI) patients; however, this benefit likely depends on the risk of future major adverse cardiovascular events (MACE). METHODS: Using data from Duke University Medical Center (2003-2012), we identified those at high risk for 1-year MACE among 664 STEMI patients with conservatively managed non-infarct-related artery (non-IRA) lesions...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29222954/evaluation-of-motion-artifact-metrics-for-coronary-ct-angiography
#16
Hongfeng Ma, Eric Gros, Aniko Szabo, Scott G Baginski, Zachary R Laste, Naveen M Kulkarni, Darin Okerlund, Taly G Schmidt
PURPOSE: This study quantified the performance of coronary artery motion artifact metrics relative to human observer ratings. Motion artifact metrics have been used as part of motion correction and best-phase selection algorithms for Coronary Computed Tomography Angiography (CCTA). However, the lack of ground truth makes it difficult to validate how well the metrics quantify the level of motion artifact. This study investigated five motion artifact metrics, including two novel metrics, using a dynamic phantom, clinical CCTA images, and an observer study that provided ground truth motion artifact scores from a series of pairwise comparisons...
December 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/29222565/biomechanics-and-mechanobiology-of-saphenous-vein-grafts
#17
Keith Gooch, Michael Firstenberg, Brittany Shrefler, Benjamin Scandling
Within several weeks of use as coronary artery bypass grafts (CABG), saphenous veins (SV) exhibit significant intimal hyperplasia (IH). The fact that SV do not develop significant IH in their native venous environment coupled with the rapidity with which they develop IH following grafting into the arterial circulation suggests that factors associated with the isolation and preparation of SV and/or differences between the venous and arterial environments contribute to disease progression. There is strong evidence suggesting that mechanical trauma associated with traditional techniques of SV preparation can significantly damage the vessel and might potentially reduce graft patency though modern surgical techniques reduces these injuries...
December 9, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29221351/extracorporeal-membrane-oxygenation-system-as-a-bridge-to-reparative-surgery-in-ventricular-septal-defect-complicating-acute-inferoposterior-myocardial-infarction
#18
Jose Rozado, Isaac Pascual, Pablo Avanzas, Daniel Hernandez-Vaquero, Ruben Alvarez, Rocio Díaz, Beatriz Díaz, María Martín, Amelia Carro, Guillermo Muñiz, Jacobo Silva, Cesar Moris
Post-infarction ventricular septal defect (VSD) is a rare but potentially lethal complication of acute myocardial infarction. Medical management is usually futile, so definitive surgery remains the treatment of choice but the risk surgery is very high and the optimal timing for surgery is still under debate. A 55-year-old man with no previous medical history attended the emergency-room for 12 h evolution of oppressive chest pain and strong anginal pain 7 days ago. On physical examination, blood pressure was 96/70 mmHg, pansystolic murmur over left sternal border without pulmonary crackles...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29220345/a-randomized-trial-of-bifurcation-stenting-technique-in-chronic-total-occlusions-percutaneous-coronary-intervention
#19
Vitaly I Baystrukov, Evgeniy I Kretov, Marouane Boukhris, Alexander G Osiev, Igor O Grazhdankin, Alexey V Biryukov, Hatem Najjar, Vladimir V Verin, Dmitriy D Zubarev, Ivan A Naryshkin, Alexander V Bogachev-Prokophiev, Kambis Mashayekhi, Alfredo R Galassi, Alexey A Prokhorikhin
BACKGROUND: The optimal strategy to treat bifurcation lesions (BFLs) in a percutaneous coronary intervention (PCI) for chronic total occlusions (CTOs) remains unknown. AIMS: We sought to assess whether T-provisional or mini-crush is appropriate for BFLs within CTO vessels. PATIENTS AND METHODS: From January 2011 to December 2013, patients who underwent successful CTO guidewire crossing and with a BFL within the CTO target vessel were enrolled prospectively and assigned randomly to either T-provisional stenting or the mini-crush technique for BFL treatment...
January 2018: Coronary Artery Disease
https://www.readbyqxmd.com/read/29217002/the-delta-2-registry-a-multicenter-registry-evaluating-percutaneous-coronary-intervention-with-new-generation-drug-eluting-stents-in-patients-with-obstructive-left-main-coronary-artery-disease
#20
Alaide Chieffo, Akihito Tanaka, Gennaro Giustino, Ieva Briede, Fadi J Sawaya, Joost Daemen, Hiroyoshi Kawamoto, Emanuele Meliga, Fabrizio D'Ascenzo, Enrico Cerrato, Giulio G Stefanini, Davide Capodanno, Andrea Mangiameli, Christian Templin, Andrejs Erglis, Marie Claude Morice, Roxana Mehran, Nicolas M Van Mieghem, Sunao Nakamura, Mauro De Benedictis, Marco Pavani, Ferdinando Varbella, Marco Pisaniello, Samin K Sharma, Corrado Tamburino, Didier Tchetche, Antonio Colombo
OBJECTIVES: The aim of this study was to evaluate clinical outcomes of unprotected left main coronary artery percutaneous coronary intervention (PCI) with new-generation drug-eluting stents in a "real world" population. BACKGROUND: PCI of the unprotected left main coronary artery is currently recommended as an alternative to coronary artery bypass grafting (CABG) in selected patients. METHODS: All consecutive patients with unprotected left main coronary artery stenosis treated by PCI with second-generation drug-eluting stents were analyzed in this international, all-comers, multicenter registry...
December 11, 2017: JACC. Cardiovascular Interventions
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