Read by QxMD icon Read

Heart and Vessels

Andreas Jekell, Majid Kalani, Thomas Kahan
There are several non-invasive methods to study endothelial function, but their interrelation and association to cardiovascular risk have not been well evaluated. We studied macrovascular and microvascular endothelial function simultaneously in different vascular beds in relation to cardiovascular mortality risk (Systematic Coronary Risk Evaluation, SCORE) and hypertension induced cardiac organ damage, and their interrelationship. The study investigated 71 hypertensive patients by forearm post-ischemic flow-mediated vasodilation, pulse wave analysis (applanation tonometry) and beta 2-adrenoceptor agonist stimulation for changes in reflection index, skin microvascular reactivity by laser Doppler fluxmetry with iontophoresis and heat-induced hyperaemia, and coronary microvascular function by subendocardial viability ratio (derived from pulse wave analysis)...
September 22, 2018: Heart and Vessels
Ryo Watanabe, Hirohisa Amano, Fumiya Saito, Shigeru Toyoda, Masashi Sakuma, Shichiro Abe, Toshiaki Nakajima, Teruo Inoue
Right atrial pressure (RAP), a representative parameter of right heart failure, is very important for prognostic evaluation and risk assessment in pulmonary hypertension. However, its measurement requires invasive cardiac catheterization. In this study, we determined the most accurate echocardiographic surrogate of catheterization-based RAP. In 23 patients with pulmonary hypertension, a total of 66 cardiac catheterization procedures were performed along with 2-dimensional echocardiography. We evaluated tricuspid E/A, E', A' and E/E', and estimated RAP by the respirophasic variation of the inferior vena cava diameter (eRAP-IVCd) as possible surrogates of catheterization-based RAP...
September 22, 2018: Heart and Vessels
Junichiro Miake, Masaru Kato, Kazuyoshi Ogura, Kazuhiko Iitsuka, Akihiro Okamura, Takuya Tomomori, Daiki Tsujimoto, Masahiko Kato, Kazuhiro Yamamoto
Association between pre-ablation levels of biomarkers of cardiac and endothelial dysfunctions, CHADS2, CHA2DS2-VASc, and APPLE scores and the recurrence of atrial fibrillation (AF) after radiofrequency catheter ablation has not been fully studied. A total of 254 patients with nonvalvular AF were prospectively followed for AF recurrence after a single ablation procedure. During a two-year follow-up period, AF recurred in 65 (25.6%) patients. Patients with AF recurrence had significantly greater baseline ln brain natriuretic peptide (BNP) than those without AF recurrence (P < 0...
September 20, 2018: Heart and Vessels
Yuma Kurozumi, Shogo Oishi, Yasuo Sugano, Akihiro Sakashita, Norihiko Kotooka, Makoto Suzuki, Taiki Higo, Dai Yumino, Yasuko Takada, Seiko Maeda, Saori Yamabe, Koichi Washida, Tomonori Takahashi, Tomohito Ohtani, Yasushi Sakata, Yukihito Sato
Palliative care for end-stage heart failure should be provided by a multidisciplinary team. However, the influence of each occupational category on patients receiving palliative care for end-stage heart failure remains unclear. Thus, this study investigated the relationships between palliative care conferences and positive outcomes of palliative care for end-stage heart failure patients. We sent questionnaires to all cardiology training hospitals authorized by the Japanese Circulation Society (n = 1004); of these, responses from the directors at 554 institutions were analyzed...
September 20, 2018: Heart and Vessels
Chun-Fan Chen, Fu-An Chen, Ann Charis Tan, Tsung-Lun Lee, Chia-Hao Chan, Chih-Ching Lin
Ankle brachial index (ABI) is a diagnostic tool for peripheral artery disease (PAD), which is an important issue in hemodialysis (HD) patients. We enrolled 198 maintenance HD patients in this study. PAD is defined as ABI ≤ 0.90. Only PAD patients received far-infrared (FIR) therapy using the WS TY101 FIR emitter for 40 min during each HD session, three times weekly for 6 months. The ABI was measured at the bilateral lower extremities for 4 times [pre-dialytic timing (0 min) and 40 min after the initiation of HD session at both day 0 and 6 months after the FIR therapy]...
September 18, 2018: Heart and Vessels
Rikuta Hamaya, Taishi Yonetsu, Yoshihisa Kanaji, Eisuke Usui, Masahiro Hoshino, Masahiro Hada, Yoshinori Kanno, Tadashi Murai, Tetsumin Lee, Tsunekazu Kakuta
This study aimed to investigate the combined efficacy in prediction of major adverse cardiac events (MACE) by coronary regional physiological indices including coronary flow reserve (CFR) or fractional flow reserve (FFR) and high-sensitivity cardiac troponin-I (hs-cTnI) or N-terminal pro brain natriuretic peptide (NT-proBNP). Impaired CFR, decreased FFR, elevated cardiac troponin, and NT-proBNP are all associated with increased MACE, while these interaction or collinearity remains uncertain. The study included 429 patients with stable coronary artery disease (CAD) evaluated hs-cTnI and NT-proBNP levels before regional physiological measurement during coronary angiography...
September 18, 2018: Heart and Vessels
Jun Muneuchi, Yoshie Ochiai, Naoki Masaki, Seigo Okada, Chiaki Iida, Yuichiro Sugitani, Yusuke Ando, Mamie Watanabe
Histopathological assessment of the pulmonary arteries is crucial to determine the surgical indications in patients with congenital heart disease (CHD) and intractable pulmonary vascular disease (PVD). We aimed to clarify whether pulmonary hemodynamic parameters can predict PVD in patients with CHD and pulmonary arterial hypertension (PAH) We performed histopathological evaluations of lung specimens and cardiac catheterizations in 27 patients with CHD-PAH. We divided these patients into the patients with and without PVD, and compared pulmonary hemodynamic parameters including pulmonary arterial compliance (Cp) between two groups...
September 17, 2018: Heart and Vessels
Toshinori Totsugawa, Arudo Hiraoka, Kentaro Tamura, Hidenori Yoshitaka, Taichi Sakaguchi
Because of concerns about the high risk of perioperative complications, the feasibility of minimally invasive aortic valve replacement (MIAVR) for elderly patients remains controversial. Here, we review our results of MIAVR in octogenarians with aortic valve stenosis (AS). Between October 2012 and December 2017, 110 patients with AS underwent MIAVR via a right anterolateral mini-thoracotomy; 41 patients were octogenarian (Group O). The perioperative outcomes of these patients were compared with those of the 69 patients who were less than 80 years of age (Group Y)...
September 17, 2018: Heart and Vessels
Masayoshi Yamamoto, Yoshihiro Seo, Tomoko Ishizu, Isao Nishi, Yoshie Hamada-Harimura, Tomoko Machino-Ohtsuka, Haruhiko Higuchi, Seika Sai, Tomofumi Nakatsukasa, Akinori Sugano, Masako Baba, Kenichi Obara, Kazutaka Aonuma
Differences in the clinical impacts of the aldosterone receptor antagonists spironolactone and eplerenone in patients with heart failure (HF) are unclear. Among 838 prospectively enrolled patients hospitalized for HF, 90 treated with eplerenone were compared with 90 treated with spironolactone. The primary endpoint was a composite of cardiovascular death and hospitalization. A serial evaluation of the clinical parameters was performed 1 year after discharge. The mean dose of spironolactone was 27 ± 8 mg and of eplerenone was 34 ± 15 mg...
September 10, 2018: Heart and Vessels
Masato Tochii, Yoshiyuki Takami, Hiroshi Ishikawa, Michiko Ishida, Yoshiro Higuchi, Yusuke Sakurai, Kentaro Amano, Yasushi Takagi
The frozen elephant trunk (FET) technique allows single-stage extended surgical repair of Stanford type A aortic dissection and has shown promotion of aortic remodeling by maintaining the true lumen flow and facilitating its expansion and by promoting false lumen thrombosis. However, few studies have compared the effectiveness of FET technique, in terms of the downstream aortic remodeling. Between 2005 and 2017, 50 patients underwent total arch replacement for Stanford type A aortic dissection, including that with (n = 22) and without FET technique (n = 28)...
September 6, 2018: Heart and Vessels
Vincent Roule, Clément Briet, Adrien Lemaitre, Pierre Ardouin, Mathieu Bignon, Rémi Sabatier, Katrien Blanchart, Farzin Beygui
Intracoronary thrombus burden affects the quality of myocardial reperfusion in the setting of ST-elevation myocardial infarction (STEMI). We aimed to study the characteristics of the plaque and thrombus assessed by intracoronary optical frequency domain imaging (OFDI) according to the presence of plaque rupture or erosion in STEMI patients treated with successful fibrinolysis. Pre-stenting thrombus and post-stenting atherothrombotic burden were compared between plaque rupture and erosion. Twenty-seven consecutive patients were included: 17 (63%) had OFDI-plaque rupture and 10 (37%) had OFDI-erosion...
September 6, 2018: Heart and Vessels
Miyu Tajima, Atsuko Nakayama, Reina Uewaki, Keitaro Mahara, Mitsuaki Isobe, Masatoshi Nagayama
Right ventricular (RV) function is a prognostic factor in ischemic heart disease (IHD) patients, although its correlations with exercise capacity and cardiac rehabilitation (CR) efficacy are unknown. We aimed to clarify how RV function was associated with exercise tolerance and efficacy of phase II CR in IHD patients. We retrospectively analyzed 301 consecutive IHD patients who underwent phase II CR. We defined RV dysfunction using a combination of RV fractional area change < 35%, tricuspid annular plane systolic excursion < 1...
September 5, 2018: Heart and Vessels
Norikiyo Oka, Tadayuki Kadohira, Kenichi Fujii, Hideki Kitahara, Yoshihide Fujimoto, Yoshio Kobayashi
Microvessels within neoatherosclerosis are associated with vulnerability and increase from the early to the very late phase after drug-eluting stent implantation. Microbubble contrast agents have been suggested to enhance tissue microvasculature for optical coherence tomography (OCT) imaging. The present study investigated whether OCT signal intensity of neointima within stented segments was enhanced after intracoronary administration of microbubble contrast agents. A total of 40 patients who underwent follow-up coronary angiography after drug-eluting stent implantation were enrolled...
September 5, 2018: Heart and Vessels
Kaori Hisazaki, Kanae Hasegawa, Kenichi Kaseno, Shinsuke Miyazaki, Naoki Amaya, Yuichiro Shiomi, Naoto Tama, Hiroyuki Ikeda, Yoshitomo Fukuoka, Tetsuji Morishita, Kentaro Ishida, Hiroyasu Uzui, Hiroshi Tada
Experimental data suggest that cryoenergy is associated with less endothelial damage and thrombus formation than radiofrequency energy. This study aimed to compare the impact of pulmonary vein isolation (PVI) on the endothelial damage, myocardial damage, inflammatory response, and prothrombotic state between the two latest technologies, second-generation cryoballoon (CB2) and contact force-sensing radiofrequency catheter (CFRF) ablation. Eighty-six paroxysmal atrial fibrillation (AF) patients (55 men; 65 ± 12 years) underwent PVI with either the CB2 (n = 64) or CFRF (n = 22)...
September 4, 2018: Heart and Vessels
Masahiro Hada, Shinsuke Miyazaki, Takatsugu Kajiyama, Masao Yamaguchi, Shigeki Kusa, Hiroaki Nakamura, Hitoshi Hachiya, Hiroshi Tada, Kenzo Hirao, Yoshito Iesaka
Sick sinus syndrome (SSS) frequently coexists with atrial fibrillation (AF). The results of AF ablation in patients with SSS have not been fully evaluated. We retrospectively investigated 65 patients with paroxysmal AF (PAF) and SSS who underwent AF ablation using either radiofrequency (n = 50) or cryoballoon ablation (n = 15) in our institute. Forty-nine (75.4%) patients had a median of 5.6 (4.8-6.0) s of documented sinus pauses prior to the procedure (42 patients on antiarrhythmic drugs), and were observed when AF terminated in 47 patients...
September 3, 2018: Heart and Vessels
Yong Hoon Kim, Ae-Young Her, Myung Ho Jeong, Byeong-Keuk Kim, Sung-Jin Hong, Dong-Ho Shin, Jung-Sun Kim, Young-Guk Ko, Donghoon Choi, Myeong-Ki Hong, Yangsoo Jang
There are limited data comparing the clinical outcomes among new-generation drug-eluting stents (DES) in acute myocardial infarction (AMI) patients with dyslipidemia after percutaneous coronary intervention (PCI). We thought to investigate 2-year clinical outcomes among durable-polymer (DP)-coated stents [zotarolimus eluting (ZES) and everolimus eluting (EES)] and biodegradable-polymer (BP)-coated biolimus-eluting stent (BES) in dyslipidemic AMI patients after PCI. Finally, a total 2403 enrolled patients were divided into ZES (n = 953), EES (n = 1145) or BES (n = 305) group...
August 30, 2018: Heart and Vessels
Yoshihiro Higuchi, Takuro Niidome, Yuji Miyamoto, Yoshihiro Komohara, Tomotake Tokunou, Toru Kubota, Takahiko Horiuchi
Gold nano-rods, rod-shaped gold nanoparticles, act as contrast agents for in vivo bioimaging, drug delivery vehicles and thermal converters for photothermal therapy. Pro-inflammatory cytokines play critical roles in the development of heart failure. We examined the delivery of GNRs into the failing heart of a transgenic (TG) mouse model of inflammatory cardiomyopathy with the cardiac-specific overexpression of TNF-α. We modified GNRs with polyethylene glycol (PEG) to avoid cytotoxicity and reduce the rapid clearance of nanoparticles from blood...
August 29, 2018: Heart and Vessels
Josip Anđelo Borovac, Katarina Novak, Josko Bozic, Duska Glavas
The objectives of the study were to characterize and compare different acute heart failure (AHF) subgroups according to left-ventricular ejection fraction (LVEF) in terms of all-cause mortality and HF-related readmissions during the 1-year follow-up (FU). Three hundred and fifty-six AHF patients admitted to Cardiology ward and/or CCU were retrospectively included in the study and analyzed during the 1-year FU. Patients were stratified according to LVEF as those with preserved (HFpEF), midrange (HFmrEF) and reduced LVEF (HFrEF)...
August 29, 2018: Heart and Vessels
Ming-Jer Hsieh, Chun-Chi Chen, Cheng-Hung Lee, Chao-Yung Wang, Shang-Hung Chang, Dong-Yi Chen, Chia-Hung Yang, Ming-Lung Tsai, Jih-Kai Yeh, Ming-Yun Ho, I-Chang Hsieh
The therapeutic effects of reperfusion strategies with complete revascularization (CR) or incomplete revascularization (IR) in non-ST segment myocardial infarction (NSTEMI) patients with multivessel disease (MVD) are controversial. In such patients, whether utilization of different generations of drug-eluting stents (DES) for IR or CR affect long-term major adverse cardiovascular events (MACE) is unknown. This study included 702 NSTEMI patients with MVD who received first-generation (1G) or second-generation (2G) DES...
August 29, 2018: Heart and Vessels
Ken Takahashi, Masaki Nii, Kiyohiro Takigiku, Manatomo Toyono, Satoru Iwashima, Nao Inoue, Noboru Tanaka, Kotoko Matsui, Sachie Shigemitsu, Mariko Yamada, Maki Kobayashi, Kana Yazaki, Keiichi Itatani, Toshiaki Shimizu
Although the suction force that moves blood into the left ventricle during early diastole is thought to play an important role in diastolic function, there have been a few studies of this phenomenon in normal children. Suction force is measured as the intraventricular pressure difference (IVPD) and intraventricular pressure gradient (IVPG), which is calculated as IVPD divided by left ventricular length. The purpose of this study was to determine the suction force in infants, children, and adolescents using IVPD and IVPG...
August 28, 2018: Heart and Vessels
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"