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https://www.readbyqxmd.com/read/28217690/iatrogenic-acute-ascending-aortic-dissection-with-intramural-hematoma-during-coronary-artery-stenting-a-case-report
#1
Mohamad El-Haress, Hicham Daadaa, Shima Shahjouei, Firas El-Bitar, Hisham Bahmad
BACKGROUND: Iatrogenic acute ascending aortic dissection during percutaneous coronary intervention (PCI) is an exceptionally rare and life-threatening sequel that requires early and accurate diagnosis along with rapid management. No guidelines have yet been established to direct decisions on the different treatment options that can be employed in the setting of acute aortic dissections caused by PCI. However, similar cases have been treated either by intracoronary stenting and conservative management as in localized aortocoronary dissections or by surgical intervention in cases of extensive aortic dissections...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28197870/intravascular-ultrasound-guidance-of-percutaneous-coronary-intervention-in-ostial-chronic-total-occlusions-a-description-of-the-technique-and-procedural-results
#2
Nicola Ryan, Nieves Gonzalo, Philip Dingli, Oscar Vedia Cruz, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Ivan Nuñez-Gil, María Del Trigo, Pablo Salinas, Carlos Macaya, Antonio Fernandez-Ortiz, Javier Escaned
Inability to cross the lesion with a guidewire is the most common reason for failure in percutaneous revascularization (PCI) of chronic total occlusions (CTOs). An ostial or stumpless CTO is an acknowledged challenge for CTO recanalization due to difficulty in successful wiring. IVUS imaging provides the opportunity to visualize the occluded vessel and to aid guidewire advancement. We review the value of this technique in a single-centre experience of CTO PCI. This series involves 22 patients who underwent CTO-PCI using IVUS guidance for stumpless CTO wiring at our institution...
February 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28197295/spontaneous-coronary-artery-dissection-the-phantom-menace
#3
Nikolaos Spinthakis, Nada Abdulkareem, Mohamed Farag, Diana A Gorog
We present a case of a 66-year-old lady with chest pain, without dynamic 12-lead electrocardiographic (ECG) changes and normal serial troponin. Coronary angiography revealed a linear filing defect in the first obtuse marginal branch of the circumflex artery indicating coronary artery dissection, with superadded thrombus. She was managed medically with dual antiplatelet therapy and has responded well. Spontaneous coronary artery dissection (SCAD) is a rare cause of cardiac chest pain, which can be missed without coronary angiography...
December 2016: Cardiology Research
https://www.readbyqxmd.com/read/28196494/assessment-of-myocardial-injury-after-reperfused-infarction-by-t1%C3%AF-cardiovascular-magnetic-resonance
#4
Rutger H Stoffers, Marie Madden, Mohammed Shahid, Francisco Contijoch, Joseph Solomon, James J Pilla, Joseph H Gorman, Robert C Gorman, Walter R T Witschey
BACKGROUND: The evolution of T1ρ and of other endogenous contrast methods (T2, T1) in the first month after reperfused myocardial infarction (MI) is uncertain. We conducted a study of reperfused MI in pigs to serially monitor T1ρ, T2 and T1 relaxation, scar size and transmurality at 1 and 4 weeks post-MI. METHODS: Ten Yorkshire swine underwent 90 min of occlusion of the circumflex artery and reperfusion. T1ρ, T2 and native T1 maps and late gadolinium enhanced (LGE) cardiovascular magnetic resonance (CMR) data were collected at 1 week (n = 10) and 4 weeks (n = 5)...
February 15, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28192858/deep-and-superficial-circumflex-iliac-arteries-and-their-relationship-to-the-ultrasound-guided-femoral-nerve-block-procedure-a-cadaver-study
#5
Keiko Ogami, Hiroaki Murata, Akiko Sakai, Shuntaro Sato, Kazunobu Saiki, Keishi Okamoto, Yoshitaka Manabe, Tetsuya Hara, Toshiyuki Tsurumoto
BACKGROUND: The in-plane lateral to medial approach is a standard technique for ultrasound-guided femoral nerve block (USG-FNB). The first bifurcation of the femoral artery, which consists of the deep artery of the thigh (DAT) or occasionally the lateral circumflex femoral artery (LCFA), is regarded as the distal border for this procedure. We sometimes detect arteries along the estimated needle trajectory for USG-FNB. The superficial (SCIA) and deep (DCIA) circumflex iliac arteries run laterally parallel to the inguinal ligament from the femoral or external iliac artery...
February 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28189040/an-anti-%C3%AE-v%C3%AE-3-antibody-inhibits-coronary-artery-atherosclerosis-in-diabetic-pigs
#6
L A Maile, W H Busby, G Xi, K P Gollahan, W Flowers, N Gafbacik, S Gafbacik, K Stewart, E P Merricks, T C Nichols, D A Bellinger, D R Clemmons
BACKGROUND AND AIMS: Diabetes is a major risk factor for the development of atherosclerosis. Hyperglycemia stimulates vascular smooth muscle cells (VSMC) to secrete ligands that bind to the αVβ3 integrin, a receptor that regulates VSMC proliferation and migration. This study determined whether an antibody that had previously been shown to block αVβ3 activation and to inhibit VSMC proliferation and migration in vitro, inhibited the development of atherosclerosis in diabetic pigs. METHODS: Twenty diabetic pigs were maintained on a high fat diet for 22 weeks...
January 27, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28169555/aspiration-thrombectomy-and-intracoronary-tirofiban-via-guideliner-%C3%A2-catheter-for-a-thrombosed-aneurysmal-vessel
#7
James Fry, Ali Naqvi, Amit Bahia, Arnold Seto
A 52-year-old Asian male with no traditional risk factors for coronary artery disease presented with acute coronary syndrome. Coronary angiography showed complete thrombotic occlusion of the left circumflex with a large thrombus burden in the setting of diffuse aneurysmal enlargement of the coronary arteries consistent with antecedent Kawasaki disease. Manual thrombectomy with adjunctive intracoronary tirofiban was performed utilizing the GuideLiner catheter. Stent implantation was deferred. Follow-up imaging 48 h later showed preserved coronary flow and decreased thrombus burden...
February 7, 2017: Future Cardiology
https://www.readbyqxmd.com/read/28169140/influence-of-cardiovascular-risk-factors-on-the-prevalence-of-coronary-atherosclerosis-in-patients-with-angiographically-normal-coronary-arteries
#8
Daniel O Bittner, Lutz Klinghammer, Mohamed Marwan, Jasmin Schmid, Christian Layritz, Udo Hoffmann, Stephan Achenbach, Tobias Pflederer
RATIONALE AND OBJECTIVES: Cardiovascular (CV) disease is predominately influenced by CV risk factors and coronary computed tomography angiography (CTA) is capable of detecting early-stage coronary artery disease. We sought to determine the influence of CV risk factors on the prevalence of nonobstructive atherosclerosis in patients with normal-appearing coronary arteries in invasive coronary angiography (ICA). MATERIALS AND METHODS: In this retrospective analysis, we included 60 consecutive symptomatic patients, having undergone ICA and coronary CTA...
February 3, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28164433/coronary-artery-aneurysm-after-implantation-of-a-bioresorbable-vascular-scaffold-case-report-and-literature-review
#9
Su-Kiat Chua, Jun-Jack Cheng
A 55-year-old man underwent successful percutaneous coronary intervention for the middle left circumflex artery with a 3.5 × 28-mm bioresorbable vascular scaffold (BVS). At 18 months, follow-up coronary angiography showed ectatic change with aneurysm formation over the BVS. Optical coherence tomography revealed absence of strut continuity at the aneurysm site, in the middle of the BVS. A literature review identified nine patients with intrascaffold aneurysm, including the present patient, which developed 6-32 months after BVS implantation...
February 6, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28163840/optical-coherence-tomography-to-identify-the-cause-of-an-arrhythmic-storm-a-case-report
#10
Etienne L Couture, Simon Bérubé, Benoit Daneault
A 56-year-old man experienced an aborted sudden death followed by an arrhythmic storm. Angiography revealed a non-severe lesion on the left circumflex artery that was treated medically but an arrhythmic storm recurred. A repeat angiogram was comparable but optical coherence tomography imaging revealed a ruptured plaque with intraluminal thrombosis. Percutaneous coronary intervention was performed and no arrhythmia recurred.
January 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28155686/hemodynamic-analysis-of-sequential-graft-from-right-coronary-system-to-left-coronary-system
#11
Wenxin Wang, Boyan Mao, Haoran Wang, Xueying Geng, Xi Zhao, Huixia Zhang, Jinsheng Xie, Zhou Zhao, Bo Lian, Youjun Liu
BACKGROUND: Sequential and single grafting are two surgical procedures of coronary artery bypass grafting. However, it remains unclear if the sequential graft can be used between the right and left coronary artery system. The purpose of this paper is to clarify the possibility of right coronary artery system anastomosis to left coronary system. METHODS: A patient-specific 3D model was first reconstructed based on coronary computed tomography angiography (CCTA) images...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28152328/a-comparison-of-axial-circumference-between-superficial-circumflex-iliac-artery-perforator-flap-and-other-workhorse-flaps-in-dorsal-foot-reconstruction
#12
Yujin Myung, Sangjun Yim, Baek-Kyu Kim
BACKGROUND: Management and reconstruction of dorsal foot defects present various difficulties and challenges. The main purpose of this article is to discuss experiences of using superficial circumflex iliac perforator (SCIP) flap in various defects of the dorsal foot region. METHODS: From August 2012 to February 2015, a total of 13 patients - nine males and four females - received a reconstruction operation for dorsal foot defects using SCIP flaps (the SCIP group)...
February 2, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28150404/prenatal-assessment-of-coronary-artery-anatomy-using-color-doppler-in-cases-of-d-transposition-of-the-great-arteries-case-reports
#13
Takashi Kaji, Yasunobu Hayabuchi, Kazuhisa Maeda, Soichiro Nakayama, Minoru Irahara
Abnormal coronary artery (CA) anatomy is common in cases of D-transposition of the great arteries (TGA) and can be a significant risk factor during the arterial switch operation. Here, we report three cases of TGA in which CA anatomy was assessed prenatally using color Doppler imaging. All CA, except the left circumflex CA in one case, were identified. CA anatomy was completely correctly diagnosed in one of our three cases. In the two remaining cases, the left circumflex CA could not be visualized in one patient, and the origin of the left anterior descending CA was not correctly diagnosed in the other...
February 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28149315/multiple-right-coronary-artery-fistulas-to-coronary-sinus-a-case-report-and-literature-review
#14
Mohsen Mirmohammadsadeghi, Fereshteh Salimi-Jazi, Majid Rabbani
BACKGROUND: Coronary arteriovenous fistula is a rare congenital or acquired abnormal connection between a coronary artery and any of the great vessels or any of the heart chambers. Most of them are diagnosed during routine coronary angiography. CASE REPORT: This case report illustrates a successful surgical ligating of multiple right coronary artery and circumflex artery fistulas to coronary sinus. CONCLUSION: According to our experience and literature review, it can be concluded that to prevent potential complications in various cases of coronary arteriovenous fistula, early surgical management, just after their condition has been diagnosed, is the best choice...
July 2016: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/28146144/percutaneous-coronary-intervention-for-ostial-and-bifurcation-lesions-using-the-szabo-technique-a-single-centre-experience
#15
Benedikt Schrage, Michael Schwarzl, Christoph Waldeyer, Peter M Becher, Christoph Sinning, Ulrich Schäfer, Moritz Seiffert, Elvin Zengin-Sahm, Stefan Blankenberg, Dirk Westermann
BACKGROUND: Aorto-ostial lesions as well as bifurcation lesions still provide challenges in percutaneous coronary intervention (PCI), as meticulous stent placement is needed. The Szabo-technique, which uses a second wire to anchor the stent at the osmium, may be helpful here. In this article, we will provide detailed information on the technique including video material as well as procedural and long-term follow-up data of a cohort of patients treated with this technique. METHODS AND RESULTS: A retrospective single-centre study was performed in patients undergoing Szabo-PCI from 2014 to 2016 (n=28)...
January 31, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28138794/perforator-variability-in-the-anterolateral-thigh-free-flap-a-systematic-review
#16
REVIEW
Ross K Smith, James Wykes, David T Martin, Navin Niles
OBJECTIVES: The use of free flaps greatly improves reconstruction options and quality of life for patients undergoing oncological resections. The anterolateral thigh (ALT) free flap is frequently used in the head and neck. The aim of this review was to provide a summary of published evidence assessing perforator anatomy of this flap. METHODS: A broad search was undertaken through the PubMed database using the terms "anterolateral thigh free flap" and "perforator"...
January 30, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28137454/residual-activity-correction-in-quantitative-myocardial-perfusion-13-n-ammonia-pet-imaging-a-study-in-post-mi-patients
#17
George Markousis-Mavrogenis, Luis Eduardo Juárez-Orozco, Erick Alexanderson
BACKGROUND/INTRODUCTION/AIM: Positron Emission Tomography (PET) is the gold standard for quantification of Myocardial Blood Flow (MBF). A standard PET scan is acquired in two phases (rest and pharmacological stress). (13)N-ammonia is a perfusion radiotracer that may show residual activity which may affect MBF estimation during the second phase of the scan. An algorithm for Residual Activity Correction (RAC) is available when reconstruction is performed using Syngo MBF (by Siemens). The aim of this study was to evaluate differentes in MBF estimation with and without RAC by Syngo MBF in patients with a previous MI using (13)N-ammonia PET...
January 27, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28123148/plasma-omentin-1-level-as-a-predictor-of-good-coronary-collateral-circulation
#18
Ji-Peng Zhou, Xiao-Yu Tong, Ling-Ping Zhu, Jing-Min Luo, Ying Luo, Yong-Ping Bai, Chuan-Chang Li, Guo-Gang Zhang
AIM: Coronary collateral circulation (CCC) is crucial during an acute ischemic attack. Evidences showed that omentin-1 exhibited remarkable antiatherogenic effects and ischemia-induced revascularization. The aim of this study was to investigate the relationship between plasma omentin-1 levels and CCC in patients with ≥90% angiography-proven coronary occlusion. METHODS: 142 patients with ≥90% luminal diameter stenosis in at least one major epicardial coronary artery were recruited...
January 25, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28122463/inflammatory-bowel-disease
#19
Grigorios Tsigkas, Periklis Davlouros, Stefanos Despotopoulos, Stelios Assimakopoulos, Georgios Theocharis, George Hahalis
Patients with inflammatory bowel disease (IBD) have a higher incidence of coronary artery disease (CAD) compared with the general population. Left main coronary artery (LMCA) thrombosis constitutes a very rare but catastrophic manifestation of acute coronary syndrome. Case reports describing young patients with IBD and LMCA thrombosis are scarce. Most importantly, patients with a positive family history of thrombotic events and those with significant genetic or acquired risk factors such as the antiphospholipid antibody syndrome, advanced age, immobilization, pregnancy, oral contraceptive use, obesity, diabetes, and cigarette smoking may have a higher risk of thrombosis among those with active IBD...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28121874/comparison-of-a-small-central-versus-a-large-peripheral-perforator-in-a-rat-model-of-extended-dorsal-three-vascular-territory-perforator-flap
#20
Jian Ding, Xiaoliang Feng, Weiyang Gao, Hede Yan, Xianyao Tao, Long Wang, Maolin Tang
BACKGROUND: Selection of suitable perforators is critical for satisfactory postreconstructive surgery outcome. This study aims to compare a small central versus a large peripheral perforator flap in a rat extended dorsal three-vascular territory perforator flap model. METHODS: An extended intercostal artery perforator flap with three vascular territories was used to model a small central perforator flap. An extended deep circumflex iliac artery flap with three vascular territories was used to model a large peripheral perforator flap...
February 2017: Plastic and Reconstructive Surgery
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