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Heart and Vessels

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https://www.readbyqxmd.com/read/27921167/the-real-world-in-the-clinic-before-and-after-the-establishment-of-guidelines-for-coronary-artery-spasm-a-questionnaire-for-members-of-the-japanese-cine-angio-association
#1
Shozo Sueda, Hiroaki Kohno, Hideaki Yoshino
We investigated the clinical situations and the present knowledge of Japanese cardiologists about coronary artery spasm before and after the establishment of guidelines for this condition in the real world. A questionnaire was developed regarding the number of cases of coronary angiography, percutaneous coronary intervention, and invasive/non-invasive spasm provocation tests before (2008) and after (2014) the establishment of the Japanese Circulation Society (JCS) guidelines for coronary artery spasm and the status of spasm provocation tests...
December 5, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27904973/platelet-reactivity-and-clinical-outcomes-in-patients-using-cyp3a4-metabolized-statins-with-clopidogrel-in-percutaneous-coronary-intervention
#2
Jin Sup Park, Kwang Soo Cha, Hye Won Lee, Jun-Hyok Oh, Jung Hyun Choi, Han Cheol Lee, Taek Jong Hong, Hyo Soo Kim
Statins are primarily metabolized by cytochrome P450 3A4 (CYP3A4), which reduces clopidogrel to its active metabolite. Recent studies suggest that CYP3A4-metabolized statins attenuate clopidogrel's anti-aggregatory effect on platelets. We aimed to assess the impact of concomitant CYP3A4-metabolized statin and clopidogrel use on antiplatelet activity and clinical outcomes in patients undergoing percutaneous coronary intervention (PCI). We enrolled 1187 patients from the HOST-ASSURE trial with platelet reactivity unit (PRU) values at both baseline and 1 month...
November 30, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27885499/the-effects-of-alpha-1-adrenoceptor-blockade-and-angiotensin-converting-enzyme-inhibition-on-central-and-brachial-blood-pressure-and-vascular-reactivity-the-doxazosin-ramipril-study
#3
Andreas Jekell, Majid Kalani, Thomas Kahan
We aimed to study whether inhibition of the renin-angiotensin-aldosterone system has effects on vascular structure and function beyond the effects on blood pressure reduction alone. Patients with mild-to-moderate hypertension (n = 61, age 54 ± 12 years, 34% women) received the angiotensin converting enzyme inhibitor ramipril 10 mg or the alpha 1-adrenoceptor blocker doxazosin 8 mg double-blind for 12 weeks. Aortic blood pressure, pulse wave velocity, and augmentation index were assessed by applanation tonometry...
November 24, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27885498/prognostic-predictive-value-of-gene-mutations-in-japanese-patients-with-hypertrophic-cardiomyopathy
#4
Ayako Chida, Kei Inai, Hiroki Sato, Eriko Shimada, Tsutomu Nishizawa, Mitsuyo Shimada, Michiko Furutani, Yoshiyuki Furutani, Yoichi Kawamura, Masaya Sugimoto, Jun Ishihara, Masako Fujiwara, Takashi Soga, Masatoshi Kawana, Shinya Fuji, Shigeru Tateno, Kenji Kuraishi, Shigetoyo Kogaki, Mitsuhiro Nishimura, Mamoru Ayusawa, Fukiko Ichida, Hirokuni Yamazawa, Rumiko Matsuoka, Shigeaki Nonoyama, Toshio Nakanishi
Although some studies have attempted to find useful prognostic factors in hypertrophic cardiomyopathy (HCM), those results are not fully helpful for use in actual clinical practice. Furthermore, several genetic abnormalities associated with HCM have been identified. However, the genotype-phenotype correlation in HCM remains to be elucidated. Here, we attempted to assess patients with different types of gene mutations causing HCM and investigate the prognosis. A total of 140 patients with HCM underwent a screening test for myofilament gene mutations by direct sequencing of eight sarcomeric genes...
November 24, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27882404/reduced-trans-mitral-a-wave-velocity-predicts-the-presence-of-wild-type-transthyretin-amyloidosis-in-elderly-patients-with-left-ventricular-hypertrophy
#5
Satoru Yamamura, Yasuhiro Izumiya, Toshifumi Ishida, Yoshiro Onoue, Yuichi Kimura, Shinsuke Hanatani, Satoshi Araki, Koichiro Fujisue, Daisuke Sueta, Hisanori Kanazawa, Seiji Takashio, Hiroki Usuku, Koichi Sugamura, Kenji Sakamoto, Eiichiro Yamamoto, Megumi Yamamuro, Hisayo Yasuda, Sunao Kojima, Koichi Kaikita, Seiji Hokimoto, Hisao Ogawa, Kenichi Tsujita
Wild-type transthyretin amyloidosis (ATTRwt) is often overlooked in elderly patients with left ventricular hypertrophy (LVH). Impaired atrial function, in addition to ventricular diastolic dysfunction, is one of the hallmarks of cardiac amyloidosis. Here, we assessed the hypothesis that atrial function evaluated by A-velocity in pulse Doppler echocardiography is useful to differentiate ATTRwt in elderly patients with LVH. We analyzed 133 consecutive patients who underwent tissue biopsy to rule out infiltrative cardiomyopathy in our institute...
November 23, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27873006/feasibility-of-omitting-provocation-test-with-50%C3%A2-%C3%AE-g-of-acetylcholine-in-left-coronary-artery
#6
Yuichi Saito, Hideki Kitahara, Toshihiro Shoji, Satoshi Tokimasa, Takashi Nakayama, Kazumasa Sugimoto, Yoshihide Fujimoto, Yoshio Kobayashi
According to the Japanese Circulation Society guideline of vasospastic angina, incremental doses of acetylcholine (ACh) are prescribed for coronary spasm provocation: 20 and 50 μg for the right coronary artery (RCA), and 20, 50 and 100 μg for the left coronary artery (LCA). However, provocation by low doses of ACh in patients with low vasoreactivity may be less needed, and the requirement of 50 μg of ACh for the LCA in these patients has not been evaluated. In the present study, patients who underwent ACh provocation test for both the RCA and LCA were included...
November 21, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27848007/transcatheter-tricuspid-valve-in-valve-replacement-one-year-results-alternative-to-surgery-in-high-risk-patients
#7
João Mesquita, Rui Campante Teles, José Pedro Neves, João Abecasis, Pedro Carmo, João Brito, Miguel Abecasis, Manuel Sousa Almeida, Marisa Trabulo, Regina Ribeiras, Ricardo Seabra-Gomes, Miguel Mendes
Although rheumatic heart disease is becoming uncommon in industrialized countries, its global burden is still significant. We report the case of a 70-year-old male with rheumatic heart disease, who underwent 4 previous heart valve replacement surgeries, and presented to our hospital with refractory heart failure (NYHA functional class IV) due to severe stenosis of a previously implanted tricuspid bioprosthesis. The Heart Team deemed the patient as inoperable/high-risk for surgery. As an alternative, a transcatheter tricuspid valve-in-valve replacement was decided upon and later executed through the right femoral vein, with the insertion of an Edwards SAPIEN XT 29 no...
November 15, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27844147/acute-ivabradine-treatment-reduces-heart-rate-without-increasing-atrial-fibrillation-inducibility-irrespective-of-underlying-vagal-activity-in-dogs
#8
Kazunori Uemura, Masashi Inagaki, Can Zheng, Toru Kawada, Meihua Li, Masafumi Fukumitsu, Masaru Sugimachi
Ivabradine, a bradycardic agent, has been shown to stably reduce patient's heart rate (HR) in the setting of acute cardiac care. However, an association between atrial fibrillation (AF) risk and acute ivabradine treatment remains a controversial clinical issue, and has not been thoroughly investigated. Bradycardia and abnormal atrial refractoriness induced by ivabradine treatment may enhance vulnerability to AF induction, especially when vagal nerve is concurrently activated. We aimed to experimentally investigate the effects of acute ivabradine treatment with/without concurrent vagal activation on AF inducibility...
November 14, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27830337/the-impact-of-surgical-left-atrial-appendage-amputation-ligation-on-stroke-prevention-in-patients-undergoing-off-pump-coronary-artery-bypass-grafting
#9
Daisuke Endo, Tomoko S Kato, Tai Iwamura, Atsumi Oishi, Yasutaka Yokoyama, Kenji Kuwaki, Hirotaka Inaba, Atsushi Amano
Stroke is a major adverse event in patients developing atrial fibrillation (AF) after cardiac surgery. Surgical left atrial appendage amputation/ligation (LAA-A/L) during off-pump coronary artery bypass grafting (OPCAB) is routinely performed in our institution. We analyzed 578 consecutive patients (mean age 69 years, male 82%) undergoing OPCAB with or without concomitant LAA-A/L from 2011 to 2014 at our institution in a prospective observational manner. The safety and efficacy of the concomitant LAA-A/L on preventing early (<30 days) and overall postoperative stroke were examined...
November 9, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27830336/optical-coherence-tomography-influence-of-contrast-concentration-on-image-quality-and-diagnostic-confidence
#10
Florian Blachutzik, Stephan Achenbach, Holger Nef, Christian Hamm, Oliver Dörr, Niklas Boeder, Mohamed Marwan, Monique Tröbs, Reinhard Schneider, Jens Röther, Christian Schlundt
OCT requires intracoronary injection of contrast agent to remove blood from the coronary lumen during data acquisition, which is a possible limitation of this method. Aim of this study was to analyze the influence of iodine concentration on image quality and diagnostic certainty of optical coherence tomography (OCT). OCT sequences acquired using contrast agent with a reduced concentration of 150 mg iodine/ml and a standard concentration of 350 mg iodine/ml were analyzed. Cross-sectional images with a spacing of 10 mm were evaluated regarding image quality and diagnostic confidence...
November 9, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27826657/st-segment-category-at-acute-presentation-is-associated-with-the-time-course-of-coronary-artery-disease-progression-in-patients-with-acute-coronary-syndromes
#11
Tatsuya Nakachi, Masami Kosuge, Naoki Iinuma, Hidekuni Kirigaya, Shingo Kato, Kazuki Fukui, Kazuo Kimura
BACKGROUND: Several studies have shown higher early mortality for ST-segment elevation acute coronary syndrome (STEACS), but late mortality remains consistently higher for non-ST-segment elevation acute coronary syndrome (NSTEACS). We hypothesized that ST-segment category at acute presentation is associated with the time course of coronary artery disease progression (CP) of nonculprit lesions in patients with acute coronary syndrome (ACS). METHODS: A total of 226 patients (182 men, age 65 ± 10 years) with STEACS (n = 95) or NSTEACS (n = 131) who underwent percutaneous coronary intervention (PCI) during initial hospitalization were studied...
November 8, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27822742/the-usefulness-of-brachial-ankle-pulse-wave-velocity-in-predicting-long-term-cardiovascular-events-in-younger-patients
#12
Yasushi Ueki, Takashi Miura, Masatoshi Minamisawa, Naoyuki Abe, Hitoshi Nishimura, Naoto Hashizume, Tomoaki Mochidome, Mikiko Harada, Kunihiko Shimizu, Yasutaka Oguchi, Kouji Yoshie, Wataru Shoin, Souichiro Ebisawa, Hirohiko Motoki, Jun Koyama, Uichi Ikeda
Brachial-ankle pulse wave velocity (baPWV) is known as a significant predictor of cardiovascular events. However, the previous studies have not considered age, which can affect the baPWV value. We evaluated the predictive value of baPWV for cardiovascular events in various age groups. From January 2005 to December 2012, all patients admitted to our department with any cardiovascular disease and underwent ankle-brachial index (ABI) measurement were enrolled in the IMPACT-ABI registry. The primary endpoints included major adverse cardiovascular events (MACE; cardiovascular death, myocardial infarction, and stroke)...
November 7, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27812747/wave-intensity-analysis-in-mice-age-related-changes-in-wia-peaks-and-correlation-with-cardiac-indexes
#13
Nicole Di Lascio, Claudia Kusmic, Francesco Stea, Francesco Faita
Mouse models are increasingly employed in the comprehension of cardiovascular disease. Wave Intensity Analysis (WIA) can provide information about the interaction between the vascular and the cardiac system. We investigate age-associated changes in WIA-derived parameters in mice and correlate them with biomarkers of cardiac function. Sixteen wild-type male mice were imaged with high-resolution ultrasound (US) at 8 weeks (T 0) and 25 weeks (T 1) of age. Carotid pulse wave velocity (PWV) was calculated from US images using the diameter-velocity loop and employed to evaluate WIA...
November 3, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27803954/clinical-outcomes-of-femoral-closure-compared-to-radial-compression-devices-following-percutaneous-coronary-intervention-the-ferari-study
#14
Christian Fastner, Michael Behnes, Melike Ünsal, Ibrahim El-Battrawy, Uzair Ansari, Kambis Mashayekhi, Ursula Hoffmann, Siegfried Lang, Jürgen Kuschyk, Martin Borggrefe, Ibrahim Akin
: This study aims to compare prospectively the differences of clinical outcomes being associated with a specific femoral closure (FC) compared to a radial compression (RC) device following percutaneous coronary interventions (PCI). This single-center, prospective observational study included consecutively 400 patients either treated by a specific FC (Angio-Seal™, St. Jude Medical, Inc., St. Paul, MN) or RC (TR Band(®), Terumo Corporation, Tokyo, Japan) device following PCI. The primary outcome was to evaluate overall, access site and non-access site bleedings, the secondary outcome was major adverse cardiac events (MACE) occurring within 30 days of follow-up...
November 1, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27798731/impact-of-combined-lipid-lowering-and-blood-pressure-control-on-coronary-plaque-myocardial-ischemia-treated-by-percutaneous-coronary-intervention-and-plaque-regression-by-lipid-lowering-and-blood-pressure-controlling-assessed-by-intravascular-ultrasonography
#15
Masa-Aki Kawashiri, Kenji Sakata, Kenshi Hayashi, Tadatsugu Gamou, Honin Kanaya, Kenji Miwa, Kosei Ueda, Toshinori Higashikata, Sumio Mizuno, Ichiro Michishita, Masanobu Namura, Yutaka Nitta, Shoji Katsuda, Kazuyasu Okeie, Hiroaki Hirase, Hayato Tada, Katsuharu Uchiyama, Tetsuo Konno, Hidekazu Ino, Keisuke Nagase, Masakazu Yamagishi
The aim of the study was to elucidate the aggressive reduction of both low-density lipoprotein cholesterol (LDL-C) and blood pressure (BP) reduced coronary atherosclerotic plaque volume compared with a standard treatment of LDL-C and BP in Japanese patients with coronary artery disease (CAD). This study is a prospective, randomized, and open-labelled with a blind-endpoint evaluation study. A total of 97 patients (81 men, mean age 62.0 ± 9.6) with CAD undergoing intravascular ultrasonography (IVUS)-guided percutaneous coronary intervention (PCI) were randomized, and 68 patients had IVUS examinations at baseline and at 18-24 months follow-up...
October 31, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27796530/assessment-of-trough-rivaroxaban-concentrations-on-markers-of-coagulation-activation-in-nonvalvular-atrial-fibrillation-population
#16
Fumihiko Kitagawa, Junnichi Ishii, Shinya Hiramitsu, Hiroshi Takahashi, Ryuunosuke Okuyama, Hideki Kawai, Takashi Muramatsu, Masahide Harada, Sadako Motoyama, Hiroyuki Naruse, Shigeru Matsui, Masayoshi Sarai, Mutsuharu Hayashi, Eiichi Watanabe, Hideo Izawa, Yukio Ozaki
Whether trough-phase rivaroxaban concentrations provide sufficient anticoagulation needs more study. We evaluated levels of coagulation activation markers in the trough concentration phase in nonvalvular atrial fibrillation (NVAF) patients, and the correlation between these markers and rivaroxaban concentration. Fifty-five Japanese NVAF patients received 24-week rivaroxaban treatment of either 15 or 10 mg once-daily in the morning. Of these, 26 patients had no history of anticoagulant therapy (naive group) and 29 had switched from warfarin (warfarin group)...
October 28, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27785570/association-of-serum-microrna-21-levels-with-visfatin-inflammation-and-acute-coronary-syndromes
#17
Faramarz Darabi, Mahmoud Aghaei, Ahmad Movahedian, Armin Elahifar, Ali Pourmoghadas, Nizal Sarrafzadegan
MicroRNAs (miRNAs) are short non-coding RNAs that regulate gene expression. It seems that microRNA-21 (miR-21) and Visfatin, a novel adipocytokine, play roles in inflammation and atherosclerosis. The aim of this study was to investigate the association of miR-21 with Visfatin, inflammation, atherosclerosis and acute coronary syndrome (ACS). Based on coronary angiography and electrocardiogram (ECG), 53 patients with ACS and 52 patients with stable CAD were enrolled in this study. We assayed serum miR-21, Visfatin, and routine chemistries using quantitative reverse transcriptase polymerase chain reaction (QRT-PCR), enzyme-linked immunosorbent assay (ELISA) and automated analyzer, respectively...
October 26, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27778068/association-between-the-body-mass-index-and-the-clinical-findings-in-patients-with-acute-heart-failure-evaluation-of-the-obesity-paradox-in-patients-with-severely-decompensated-acute-heart-failure
#18
Masato Matsushita, Akihiro Shirakabe, Noritake Hata, Takuro Shinada, Nobuaki Kobayashi, Kazunori Tomita, Masafumi Tsurumi, Hirotake Okazaki, Yoshiya Yamamoto, Kuniya Asai, Wataru Shimizu
Obesity is known to be associated with the development of heart failure (HF). However, the relationship between the body mass index (BMI) and acute HF (AHF) remains to be elucidated. Eight hundred and eight AHF patients were enrolled in this study. The patients were assigned to four groups according to their BMI values: severely thin (n = 11, BMI <16), normal/underweight (n = 579, 16 ≤ BMI <25), overweight (n = 178, 25 ≤ BMI <30) and obese (n = 40, BMI ≥30). The patients in the severely thin group were more likely to be female, have systolic blood pressure (SBP) <100 mmHg and have valvular disease than normal/underweight patients...
October 24, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27770195/early-outcomes-in-re-do-operation-after-acute-type-a-aortic-dissection-results-from-the-multicenter-reaad-database
#19
Angelo M Dell'Aquila, Francesco Pollari, Khalil Fattouch, Giuseppe Santarpino, Julia Hillebrand, Stefan Schneider, Jan Landwerht, Giuseppe Nasso, Renato Gregorini, Mauro Del Giglio, Elisa Mikus, Alberto Albertini, Heinz Deschka, Theodor Fischlein, Sven Martens, Alina Gallo, Giovanni Concistrè, Giuseppe Speziale, Tommaso Regesta
This study provides early results of re-operations after the prior surgical treatment of acute type A aortic dissection (AAD) and identifies risk factors for mortality. Between May 2003 and January 2014, 117 aortic re-operations after an initial operation for AAD (a mean time from the first procedure was 3.98 years, with a range of 0.1-20.87 years) were performed in 110 patients (a mean age of 59.8 ± 12.6 years) in seven European institutions. The re-operation was indicated due to a proximal aortic pathology in ninety cases: twenty aortic root aneurysms, seventeen root re-dissections, twenty-seven aortic valve insufficiencies and twenty-six proximal anastomotic pseudoaneurysms...
October 21, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27761653/sex-related-differences-in-matrix-remodeling-and-early-osteogenic-markers-in-aortic-valvular-interstitial-cells
#20
Shirin Masjedi, Ying Lei, Jenny Patel, Zannatul Ferdous
Calcific aortic valve disease (CAVD) is a major cardiovascular disorder in the developed countries. Male is a known risk factor in this disease; unfortunately, how sex contributes to CAVD is mostly unknown. The objective of this study is to determine whether valvular interstitial cells (VICs) isolated from male versus female aortic valves demonstrate difference in osteogenic differentiation and/or extracellular matrix (ECM) remodeling. VICs were isolated from male and female rat or porcine aortic valves and cultured in osteogenic media for 10, 15 and 20 days...
October 19, 2016: Heart and Vessels
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