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Coronary cardiac computed tomography

Ahmet Gürdal, Süleyman Sezai Yıldız, Kadriye Kılıçkesmez
Iatrogenic acute dissection of the ascending aorta is a serious but rare complication of cardiac catheterization and percutaneous coronary intervention (PCI). Although treatment of ascending aortic dissection may require surgical repair, stenting at the origin of the dissection area may be sufficient in aortocoronary dissection (AD) following PCI. Described is the case of a 64-year-old female patient who was treated with PCI for a critical lesion of the right coronary artery (RCA). Immediate stenting at the source of the dissection was sufficient to repair the RCA lesions and successfully seal the site of retrograde propagation of the dissection...
January 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Houda Bahig, Jacques de Guise, Toni Vu, Danis Blais, Carl Chartrand-Lefebvre, Nhu Tram Nguyen, Sophie Lavertu, Jean-Pierre Guay, Stephane Bedwani, David Roberge
PURPOSE: To assess radiation dose variation to the left anterior descending artery (LAD), left main coronary artery (LMCA), left ventricle (LV), and whole heart (WH) during the cardiac cycle using dual source computed tomography (DSCT). METHODS AND MATERIALS: The present prospective study included patients with left-side breast cancer planned to undergo tangential radiation therapy. An electrocardiogram-synchronized contrast-injected DSCT scan was obtained with the patient in the treatment position, in deep-inspiration breath-hold, using retrospective sequential acquisition...
January 31, 2018: International Journal of Radiation Oncology, Biology, Physics
In-Cheol Kim, Suyon Chang, Geu-Ru Hong, Seung Hyun Lee, Sak Lee, Jong-Won Ha, Byung-Chul Chang, Young Jin Kim, Chi Young Shim
BACKGROUND: Recent evolution of cardiac computed tomography (CT) provides useful information about valvular and perivalvular structures. We compared the diagnostic performance of CT and transesophageal echocardiography (TEE) with applications of 3-dimensional reconstruction in detecting vegetation and intracardiac complications in patients with infective endocarditis (IE). METHODS AND RESULTS: Seventy-five patients (53 men; age, 58±15 years) with definite IE who underwent TEE and CT with 3-dimensional reconstruction within 3 days were analyzed...
March 2018: Circulation. Cardiovascular Imaging
Prateek Bhatnagar, Shubhi Bhatnagar
Mesocardia is an extremely rare congenital cardiac anomaly of counter clockwise rotation of the heart. We report here a case of coronary artery bypass grafting in mesocardia, which has not been described in medical literature earlier. A 52 years male suffered an anterior wall myocardial infarction. Chest X Ray, 2 D Echocardiography and computed tomography of chest confirmed the presence of mesocardia. Off pump total arterial revascularization was done. Exposure of aorta and right atrium through the standard median sternotomy is very difficult in mesocardia due to cardiac rotation and should be kept in mind in this surgery...
March 13, 2018: Annals of Thoracic Surgery
Mohamed A Mohamed, Rohit Abraham, Tareq I Maraqa, Samir Elian
Aortic dissection is a rare and fatal complication of cocaine-induced hypertension. The injury mechanism is through shear stress that penetrates the intimal vessel layer, allowing blood flow to separate intimal and medial layers. Due to its scarcity and the paucity of related literature, our knowledge of this condition is limited. We present a rare case of a cocaine-induced aortic dissection, which extended continuously from the aortic root to the common iliacs, along with a literature review of similar cases...
January 12, 2018: Curēus
Morten Schmidt, Michael Maeng, Morten Madsen, Henrik Toft Sørensen, Lisette Okkels Jensen, Carl-Johan Jakobsen
The WDHR (Western Denmark Heart Registry) is a seminational, multicenter-based registry with longitudinal registration of detailed patient and procedure data since 1999. The registry includes as of January 1, 2017 approximately 240,000 coronary angiographies, 90,000 percutaneous coronary interventions, 60,000 cardiac computed tomographies, 40,000 cardiac operations, and 2,000 transcatheter aortic valve replacements. Positron emission tomography/computed tomography, single-photon emission computed tomography, and magnetic resonance imaging are soon to be added...
March 20, 2018: Journal of the American College of Cardiology
Michael C Mongé, Osama M Eltayeb, John M Costello, Joyce T Johnson, Andrada R Popescu, Cynthia K Rigsby, Carl L Backer
BACKGROUND: Controversy remains regarding the optimal surgical approach for children with supravalvular aortic stenosis (SVAS). METHODS: Since 1997 we have used Brom three-patch aortoplasty for patients with SVAS. We prefer computed tomography (CT) imaging for preoperative evaluation rather than cardiac catheterization as it avoids the well-known morbidity of general anesthesia. The purpose of this study was to present our intermediate-term results of this strategy...
March 2018: World Journal for Pediatric & Congenital Heart Surgery
Basmah Safdar, Gail D'Onofrio, James Dziura, Raymond R Russell, Caitlin Johnson, Albert J Sinusas
AIMS: Coronary microvascular dysfunction (CMD) is common in patients with non-obstructive coronary arteries but has not been described in low-risk symptomatic patients. We therefore assessed the prevalence and characteristics of CMD in low to moderate risk patients with chest pain in an emergency department. METHODS AND RESULTS: We used three-dimensional Rb82 cardiac positron emission tomography/computed tomography to diagnose coronary artery disease (known or new regional defect, any coronary calcification) and CMD (low coronary flow reserve without coronary artery disease) in chest pain patients after being ruled out for acute myocardial infarction...
March 1, 2018: European Heart Journal. Acute Cardiovascular Care
Mehrshad Vafaie, Matthias Hochadel, Thomas Münzel, Birgit Hailer, Burghard Schumacher, Gerd Heusch, Thomas Voigtländer, Harald Mudra, Michael Haude, Sebastian Barth, Claus Schmitt, Harald Darius, Lars S Maier, Hugo A Katus, Jochen Senges, Evangelos Giannitsis
BACKGROUND: Since 2008, the German Cardiac Society certified 256 Chest Pain Units (CPUs). Little is known about adherence to recommended performance measures in patients with suspected acute coronary syndrome (ACS) presenting to CPUs. We investigated guideline-adherence regarding critical time intervals and selected performance measures in German Chest Pain Units. METHODS: From 2008 to 2014, 23,804 consecutive patients with suspected ACS were prospectively enrolled in the Chest Pain Unit registry of the German Cardiac Society...
March 1, 2018: European Heart Journal. Acute Cardiovascular Care
Peter Paik, Sanjay K Arukala, Anupam A Sule
Central venous catheters are placed in approximately five million patients annually in the US. The preferred site of insertion is one with fewer risks and easier access. Although the right internal jugular vein is preferred, on occasion, the left internal jugular may have to be accessed. A patient was admitted for septic shock, cerebrovascular accident, and non-ST-segment elevation myocardial infarction. A central venous line was needed for antibiotic and vasopressor administration. Due to trauma from a fall to the right side and previously failed catheterization attempts at the left subclavian and femoral veins, the left internal jugular vein was accessed...
January 9, 2018: Curēus
Amir Pourmorteza, Noemie Keller, Richard Chen, Albert Lardo, Henry Halperin, Marcus Y Chen, Elliot McVeigh
Resting regional wall motion abnormality (RWMA) has significant prognostic value beyond the findings of computed tomography (CT) coronary angiography. Stretch quantification of endocardial engraved zones (SQUEEZ) has been proposed as a measure of regional cardiac function. The purpose of the work reported here was to determine the effect of lowering the radiation dose on the precision of automatic SQUEEZ assessments of RWMA. Chronic myocardial infarction was created by a 2-h occlusion of the left anterior descending coronary artery in 10 swine (heart rates 80-100, ejection fraction 25-57%)...
March 13, 2018: International Journal of Cardiovascular Imaging
Shiwei Huang, Binglin Pan, He Zou, Wei Lin
BACKGROUND: Atrial fibrillation (AF) usually originates from pulmonary veins (PVs) but can also be caused by pulmonary veins outside, such as the coronary sinus (CS), the superior vena cava (SVC), and the ligament of Marshall. CASE PRESENTATION: A 69-year-old male with a history of palpitations for 10 years was referred to our institute because of its recurrence for half a day. A dynamic electrocardiogram revealed sinus rhythm (SR) and paroxysmal AF. Echocardiography demonstrated normal cardiac structure, and physical examination results were unremarkable...
March 13, 2018: BMC Cardiovascular Disorders
Bo Wen, Lei Xu, Junfu Liang, Zhanming Fan, Zhonghua Sun
OBJECTIVE: The purpose of this study was to evaluate the image quality and radiation dose of computed tomography (CT) coronary angiography using a 256-row detector CT scanner in a single cardiac cycle in patients with atrial fibrillation (AF). METHODS: Seventy consecutive patients (41 men and 29 women; age range was from 37 to 84 years, mean age was 61.7 ± 10.2 years; body mass index range was from 15.08 to 36.45 kg/m, mean body mass index was 25.9 ± 3.5 kg/m) with persistent or paroxysmal AF during acquisition, who were not receiving any medications for heart rate (HR) regulation, were imaged with a 256-row detector CT scanner (Revolution CT, GE healthcare)...
March 2018: Journal of Computer Assisted Tomography
Heesun Lee, Yeonyee E Yoon, Wonjae Lee, Hong-Mi Choi, Jun-Bean Park, Hack-Lyoung Kim, Hyo Eun Park, Seung-Pyo Lee, Hyung-Kwan Kim, Su-Yeon Choi, Yong-Jin Kim, Goo-Yeong Cho, Joo-Hee Zo, Dae-Won Sohn
BACKGROUND: While coronary computed tomography angiography (CCTA) provides comprehensive anatomic evaluation of coronary artery disease (CAD) with prognostic implications, clinically, the focus is usually placed on presence or absence of functionally significant CAD. Herein, we aimed to suggest a new risk stratification strategy using CCTA in patients with anatomic CAD but without myocardial ischemia on single-photon emission computed tomography (SPECT). METHODS: Consecutive patients (n=798) with CAD on CCTA who underwent SPECT for evaluation of myocardial ischemia were retrospectively evaluated...
March 7, 2018: Journal of Cardiology
Grzegorz Suwalski, Robert Emery, Jakub Mróz, Kamil Kaczejko, Leszek Gryszko, Andrzej Cwetsch, Andrzej Skrobowski
OBJECTIVES: In patients undergoing cardiac surgical procedures, pulmonary vein isolation may be easily accomplished, and it is important to achieve bidirectional conduction block across created lesions. The primary aim of this study was to assess the risk of pulmonary vein stenosis (PVS) after multiple applications of epicardial bipolar radiofrequency energy. METHODS: Thirty-five consecutive patients who were referred for off-pump coronary revascularization with concomitant pulmonary vein isolation and left atrial appendage occlusion were prospectively included in the study...
March 7, 2018: Interactive Cardiovascular and Thoracic Surgery
Ji Hyun Lee, Donghee Han, Bríain Ó Hartaigh, Heidi Gransar, Yao Lu, Asim Rizvi, Mahn Won Park, Hadi Mirhedayati Roudsari, Wijnand J Stuijfzand, Daniel S Berman, Tracy Q Callister, Augustin DeLago, Martin Hadamitzky, Joerg Hausleiter, Mouaz H Al-Mallah, Matthew J Budoff, Philipp A Kaufmann, Gilbert Raff, Kavitha Chinnaiyan, Filippo Cademartiri, Erica Maffei, Todd C Villines, Yong-Jin Kim, Jonathon Leipsic, Gudrun Feuchtner, Gianluca Pontone, Daniele Andreini, Hugo Marques, Ronen Rubinshtein, Stephan Achenbach, Leslee J Shaw, Hyuk-Jae Chang, Jeroen Bax, Benjamin Chow, Ricardo C Cury, Millie Gomez, Erica C Jones, Fay Y Lin, James K Min, Jessica M Peña
OBJECTIVE: To assess the prognostic value of symptom typicality in patients without obstructive coronary artery disease (CAD), determined by coronary computed tomographic angiography (CCTA). METHODS: 4,215 patients without prior history of CAD and without obstructive CAD (<50% CCTA stenosis) were identified. CAD severity was categorized as non-obstructive (1%-49%) and none (0%). Based upon the Diamond-Forrester criteria for angina pectoris, symptom typicality was classified as: asymptomatic, non-anginal, atypical, and typical...
March 9, 2018: Clinical Cardiology
Noora Al-Hammadi, Palmira Caparrotti, Carole Naim, Jillian Hayes, Katherine Rebecca Benson, Ana Vasic, Hissa Al-Abdulla, Rabih Hammoud, Saju Divakar, Primoz Petric
Background: During radiotherapy of left-sided breast cancer, parts of the heart are irradiated, which may lead to late toxicity. We report on the experience of single institution with cardiac-sparing radiotherapy using voluntary deep inspiration breath hold (V-DIBH) and compare its dosimetric outcome with free breathing (FB) technique. Patients and methods: Left-sided breast cancer patients, treated at our department with postoperative radiotherapy of breast/chest wall +/- regional lymph nodes between May 2015 and January 2017, were considered for inclusion...
March 2018: Radiology and Oncology
Hussein Nafakhi, Abdulameer A Al-Mosawi, Mohammed Alareedh, Hasan A Al-Nafakh
AIM: To assess the possible relationship between coronary atherosclerosis markers, pericardial fat volume (PFV) and coronary artery calcification, With ECG markers of index of the cardiac electrophysiological balance (iCEB) and transmural dispersion of the repolarization in patients with suspected coronary artery disease. METHODOLOGY: One hundred patients who underwent 64-slice multidetector computed tomography angiography were found to be eligible and were enrolled in the study...
March 8, 2018: Biomarkers in Medicine
Hiroshi Mikamo, Meizi Jiang, Mahito Noro, Yasuo Suzuki, Nobuyuki Hiruta, Hiroyuki Unoki-Kubota, Wolfgang J Schneider, Hideaki Bujo
The upregulation of brown or brown-like beige adipocytes is a potential strategy for the prevention or treatment of diabetes and coronary artery diseases in obese patients. Epicardial adipose tissue (EAT) differs significantly from subcutaneous fat tissue (SAT) in metabolic properties. To investigate properties of EAT further, thermogenesis gene expression was investigated in human autopsy and murine samples, and adipocytes differentiated from EAT mesenchymal cells. Subsequently, analyzed EAT volume alterations were observed to be associated with weight reduction in obese patients by imaging...
March 6, 2018: Molecular Medicine Reports
Andrea Igoren Guaricci, Delia De Santis, Mariangela Carbone, Giuseppe Muscogiuri, Marco Guglielmo, Andrea Baggiano, Gaetano Serviddio, Gianluca Pontone
The prognostic impact of diabetes mellitus (DM) on cardiovascular outcomes is well known. As a consequence of previous studies showing the high incidence of coronary artery disease (CAD) in diabetic patients and the relatively poor outcome compared to nondiabetic populations, DM is considered as CAD equivalent which means that diabetic patients are labeled as asymptomatic individuals at high cardiovascular risk. Lessons learned from the analysis of prognostic studies over the past decade have challenged this dogma and now support the idea that diabetic population is not uniformly distributed in the highest risk box...
2018: BioMed Research International
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