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Valentim Goncalves A, Galrinho A, Pereira-Da-Silva T, Ilhao Moreira R, Soares R, Moura Branco L, Rio P, Feliciano J, Abreu J, Timoteo AT, Mendonca T, Reis J, Mano T, Cruz Coutinho M, Cruz Ferreira R. 4940Early reverse remodelling assessed by myocardial work after sacubitril-valsartan therapy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Sacubitril/Valsartan (LCZ696) had prognosis benefit demonstrated in PARADIGM-HF trial, however less is known about his effects in cardiac dimensions and function.
Myocardial work (MW) is a new transthoracic echocardiographic (TTE) parameter. None is known about the effects of LCZ696 therapy in MW parameters.
Purpose
The aim of this study was to prospectively compare several TTE parameters, including MW, before and after LCZ696 therapy.
Methods
Prospective evaluation of chronic HF patients with optimized standard of care therapy and LVEF≤40%, in which LCZ696 therapy was started.
TTE study was performed before and 6 months after LCZ696 therapy. A semiautomated analysis of GLS was performed and MW were estimated using custom software of GE Vivid E95 ultrasound system.
Results
Of the 42 patients, 35 (83.3%) completed the 6 months follow-up, since 2 patients (4.8%) died and 5 patients (11.9%) discontinued treatment for adverse events. Mean age was 58.6±11.1 years with 82.9% of male patients.
LV dimensions and atrial volumes were significantly lower at 6 months of treatment. LVEF had a mean absolute raise of 8.9% and GLS a relative decrease of 27.8%. MW had a significant increase in constructive work (720.2mmHg VS 900.6mmHg, p=0.016) and work efficiency (78.6% VS 86.6%, p=0.027), with a non-significant decrease in the wasted work (150.2mmHg VS 136.8mmHg, p=0.441).
TTE data before and after 6 months of LCZ696 treatment Time 0 6 months p LV end-diastolic diameter (mm) 71.3±8.4 66.9±7.6 0.001 LV end-systolic diameter (mm) 57.8±9.4 53.1±9.3 0.002 Interventricular septum (mm) 9.6±1.7 9.9±1.9 0.280 LVEF (%) 29.3±6.4 38.2±8.9 <0.001 GLS (%) −7.0±2.9 −8.9±2.8 0.001 MW – Constructive (mmHg) 720.2±230.5 900.6±343.2 0.016 MW – Wasted (mmHg) 150.2±83.3 136.8±54.2 0.441 MW – Efficiency (%) 78.6±10.8 86.6±12.0 0.027 E/e' 13.7±4.5 12.8±4.9 0.449 Pulmonary artery systolic pressure (mmHg) 38.3±12.2 30.9±10.6 <0.001 Left atrium volume (ml/m2) 51.5±22.6 43.7±15.8 0.004 Right atrium volume (ml/m2) 33.1±4.4 28.5±13.5 0.036 TAPSE (mm) 19.2±4.4 20.0±4.9 0.404
Conclusion
LCZ696 therapy is associated with signs of reverse remodelling in TTE, including an increase in constructive work and work efficiency.
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Coutinho Cruz M, Portugal G, Moura-Branco L, Galrinho A, Timoteo AT, Feliciano J, Rio P, Gameiro-Varela F, Ilhao-Moreira R, Valentim-Goncalves A, Mendonca T, Mano T, Duarte-Oliveira S, Luz R, Cruz-Ferreira R. P697Regional analysis of 3D-derived speckle tracking for the assessment of myocardial deformation in breast cancer patients submitted to anthracycline chemotherapy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Serial echocardiographic assessment of left ventricular ejection fraction (LVEF) and 2D left ventricular global longitudinal strain (GLS) is the gold standard in screening for cancer therapeutics-related cardiac dysfunction (CTRCD). Myocardial deformation assessed with 3D speckle tracking is not currently used in this setting, because of the lack of standardization and cut-off values, in spite of a potential for a greater reliability.
Methods
Prospective study of female breast cancer patients submitted to anthracycline chemotherapy with or without adjuvant immunotherapy and/or radiotherapy who underwent serial monitoring by 2D and 3D transthoracic echocardiography (ETT). Standard ETT measures and 3D-derived volumetric measures were assessed. Speckle tracking was used to estimate 2D-derived GLS – average and 18 segments – and 3D-derived GLS, global circumferential strain (GCS), global area strain (GAS) and global radial strain (GRS) – average and 17 segments. CTRCD was defined as an absolute decrease in 2D or 3D LVEF >10% to a value <54% or a relative decrease in 2D GLS >15%. Variables were compared using the t-student paired test and the Wilcoxon sign-rank test, when appropriate.
Results
106 patients (mean age 54.6±12.9 years, 33.0% immunotherapy, 16.5% radiotherapy, baseline LVEF 64.5% ± 8.5%, baseline 2D GLS −21.0±2.8) were included. During a mean follow-up of 16.5±9.6 months, an average of 3.9 echocardiographic examinations were performed per patient and 28 patients (26.4%) developed CTRCD. Overall, 3D regional longitudinal strain was determined in 88.9% of the segments analyzed, with lower success rates in the inferobasal (75.0%), the posterobasal (77.7%) and the laterobasal (82.4%) walls. When comparing variables before and during treatment, there was a significant difference in 2D-derived LVEF (64.5 vs. 57.6 p<0.001), 3D-derived LVEF (60.1 vs. 55.7 p 0.002), 2D-derived GLS (−20.6 vs. −18.2 p<0.001), 3D-derived GLS (−13.8 vs. −12.9 p 0.035), 3D-derived GRS (31.9 vs. 33.4 p 0.024), but not in GCS (−14.5 vs. −13.2 p 0.656) and GAS (−21.5 vs. −22.1 p 0.640). Figure 1 shows the segmental analysis of 2D and 3D strain parameters. In 2D GLS, 11 out of 18 segments showed decreased contractility during follow-up (mainly anterior septum and anterior, lateral and inferior walls). In 3D-derived strain parameters, only 3 out 17 for GLS, 2 out of 17 for GCS, 1 out 17 for GRS and none for GAS showed decreased contractility during follow-up.
Segmental analysis of 2D and 3D strain
Conclusion
In this population, there was worsening of 3D GLS and GRS, besides conventional values, such as LVEF and 2D GLS, during anthracycline-based cancer treatment. 3D-derived myocardial deformation parameters show promise in the setting of CTRCD, since 2D and 3D regional strain parameters might shed a light onto the mechanisms of CTRCD, such that subendocardial myocardial fibers seem to be more affected than medial and subepicardial fibers.
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Masuda M, Kanda T, Asai M, Mano T, Yamada T, Yasumura Y, Uematsu M, Hikoso S, Nakatani D, Tamaki S, Higuchi Y, Nakagawa Y, Fuji H, Abe H, Sakata Y. P6356Comparisons of clinical outcomes in patients with heart failure with preserved ejection fraction with and without atrial fibrillation: results from a multicenter PURSUIT-HFpEF registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
The presence of atrial fibrillation (AF) has been demonstrated to be associated with poor clinical outcomes in heart failure patients with reduced ejection fraction.
Objective
This study aimed to elucidate the impact of the presence of atrial fibrillation (AF) on the clinical characteristics, therapeutics, and outcomes in patients with heart failure and preserved ejection fraction (HFpEF).
Methods
PURSUIT-HFpEF is a multicenter prospective observational study including patients hospitalized for acute heart failure with left ventricular ejection fraction of >50%. Patients with acute coronary syndrome or severe valvular disease were excluded.
Results
Of 486 HFpEF patients (age, 80.8±9.0 years old; male, 47%) from 24 cardiovascular centers, 199 (41%) had AF on admission. Patients with AF had lower systolic blood pressures (142±27 vs. 155±35mmHg, p<0.0001) and higher heart rates (91±29 vs. 82±26bpm, p<0.0001) than those without. There was no difference in the usage of inotropes or mechanical ventilation between the 2 groups. A higher quality of life score (EQ5D, 0.72±0.27 vs. 0.63±0.30, p=0.002) was observed at discharge in patients with than without AF. In addition, AF patients tended to demonstrate lower in-hospital mortality rates (0.5% vs. 2.4%, p=0.09) and shorter hospital stays (20.3±12.1 vs. 22.6±18.4 days, p=0.09) than those without. During a mean follow up of 360±111 days, mortality (14.1% vs. 15.3) and heart failure re-hospitalization rates (13.1% vs. 13.9%) were comparable between the 2 groups.
Conclusion
In contrast to heart failure patients with reduced ejection fraction, AF on admission was not associated with poor long-term clinical outcomes among HFpEF patients. Several in-hospital outcomes were better in patients with AF than in those without.
Acknowledgement/Funding
None
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Tsujimura T, Ishihara T, Iida O, Asai M, Masuda M, Okamoto S, Nanto K, Kanda T, Okuno S, Matsuda Y, Mano T. P3386Angioscopic comparison between polymer-free biolimus A9-coated stent and durable polymer drug-eluting stent 10 months after the implantation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Polymer-free biolimus A9-coated stent (DCS) has currently emerged as expected better arterial healing compared to durable polymer drug-eluting stent (DP-DES). However, superiority of DCS on arterial healing over DP-DES has not been well elucidated using intracoronary images.
Methods
This study examined 288 stents in 224 patients with de novo coronary artery lesions. We angioscopically compared 55 DCS from 35 patients with 233 DP-DES from 189 patients 10±2 months after the implantation. We assessed thrombus adhesion, which is a marker of incomplete re-endothelialization. Dominant neointimal coverage (NIC) grade, heterogeneity of NIC and maximum yellow color of plaque underneath the stent were also evaluated. Neointimal coverage was graded as follows: grade 0, stent struts exposed; grade 1, struts bulged into the lumen, although covered; grade 2, struts embedded by the neointima, but translucent; grade 3, struts fully embedded and invisible. NIC was judged as heterogeneous when differences in the NIC grade became apparent. Yellow plaque was graded as follows: grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow.
Results
Thrombus adhesion was similar between DCS and DP-DES (29% versus 23%, P=0.32). Dominant NIC was greater in DCS than in BP-DES (P<0.001), while NIC was more heterogeneous in DCS than in BP-DES (P=0.001, Figure). Maximum yellow color of stented segment was similar between DCS and DP-DES (P=0.09).
Conclusion
DCS provided similar thrombus adhesion to DP-DES, which suggested similar re-endothelialization 10 months after implantation. However, DCS showed thick and heterogeneous NIC compared to DP-DES. The specific feature of polymer-free and Biolimus A9 would cause the difference, and further investigation is necessary to evaluate the longer-term safety and efficacy.
Acknowledgement/Funding
None
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Kanda T, Masuda M, Shizuta S, Kobori A, Inoue K, Kaitani K, Kurotobi T, Morishima I, Nakazawa Y, Tsujimura T, Iida O, Asai M, Mano T. P1035Factors associated with quality-of-life improvement after catheter ablation of atrial fibrillation: insights from the Kansai Plus Atrial Fibrillation (KPAF) registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Improving the quality of life (QoL) is one of the main purposes of catheter ablation (CA) of persistent atrial fibrillation (AF). Factors associated with QoL improvement after CA of AF patients have not been clarified. The Kansai Plus Atrial Fibrillation (KPAF) Registry is a multi-center registry enrolling more than 5,000 consecutive patients undergoing the first radiofrequency catheter ablation of AF.
Purpose
The aim of this study was to investigate the QoL change after AF ablation and its associated factors.
Methods
A total of 2030 patients in whom the QoL score was assessed before and one year after the ablation were enrolled from the KPAF registry (age 64±10 years, 75% male, paroxysmal 66%, CHADS2 score 1.1±1.1). The QoL was evaluated using the AF specific QoL evaluation method (AFQLQ), which scores the patient QoL within a range of 0–98 points.
Results
Overall, catheter ablation showed a significant increase in the AFQLQ score (68±19 vs. 86±13 points, P<0.01). AF recurrence was observed in 372 cases (18%) during a 1-year follow-up period. A multivariate analysis showed that AF recurrence, symptomatic AF, long AF duration, high preprocedural heart rate (>110 bpm) and small left atrial diameter were independent predictors of a QoL improvement defined as a >10% score increase.
Multivariate analysis
Conclusions
CA of AF significantly improved the QoL. AF recurrence was one of the strong factors associated with QoL improvement. Symptomatic AF, long AF duration, high preprocedural heart rate and small left atrial diameter were independent predictors of QoL improvement.
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Kanda T, Masuda M, Asai M, Iida O, Okamoto S, Ishihara T, Nanto K, Tsujimura T, Matsuda Y, Okuno S, Mano T. P1916A novel echo-guided approach of cryoballoon ablation without using contrast medium. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Pulmonary vein isolation (PVI) using cryoballoon requires contrast medium injection for the confirmation of appropriate venous occlusion. However, some patients have contra-indications against contrast use such as allergy for contrast medium, bronchial asthma or renal dysfunction. We hypothesized that intra-cardiac echocardiographic observation of microbubble leakage after saline injection from the cryoballoon lumen can be used as a maker of incomplete venous occlusion.
Purpose
The aim of this study was to assess the effect of echo-guided approach using saline injection on the acute clinical outcomes as well as the amount of contrast medium.
Methods
Twenty consecutive patients with paroxysmal atrial fibrillation (AF) were studied. They had any reason to avoid using contrast medium. Plain CT scan was performed in all cases to understand the anatomical features. Intra-cardiac echocardiography was used in all cases to guide transseptal puncture and to confirm pulmonary-vein occlusion. Procedural results and clinical outcomes were compared with patients who were performed by the conventional method (n=279).
Results
In all study patients, we could perform PVI without using contrast medium. A total of 2 patients required touch-up ablation using radiofrequency ablation catheter. The procedure time (85±23 vs 86±27 min, P=0.84), the dose of radiation exposure (108±78 vs. 140±133 mmGy/m2, P=0.29), and ratio of requiring touch-up ablation (5% vs 4%, P=0.81) were similar between the study group and the reference group. There was no significant difference in the AF-free survival rate (73% vs. 76%, P=0.79) during a follow-up period of 14±6 months.
Images of ICE
Conclusion
Echo-guided approach using saline infusion was effective and less invasive in terms of reduction of contrast use.
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Okuno S, Ishihara T, Iida O, Asai M, Masuda M, Okamoto S, Nanto K, Kanda T, Tsujimura T, Matsuda Y, Hata Y, Uematsu H, Sato Y, Mano T. P6241Two-year clinical outcomes of biodegradable polymer versus durable polymer drug-eluting stent implantation in hemodialysis patients after percutaneous coronary intervention. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Biodegradable polymer drug-eluting stent (BP-DES) has been developed to improve clinical outcomes after percutaneous coronary intervention (PCI) for patients presenting coronary artery disease (CAD). Although BP-DES showed non-inferior safety and efficacy to durable polymer DES (DP-DES) in several randomized clinical trials, hemodialysis (HD) patients, who have been well known as high risk population for adverse events, were excluded in the most of trials. Therefore, there are limited data comparing the clinical outcomes between BP-DES and DP-DES in HD patients with CAD after PCI.
Purpose
The purpose of this study was to investigate clinical outcomes in HD patients after BP-DES implantation compared with those after DP-DES implantation.
Methods
We retrospectively analyzed 234 HD patients (male 74%, mean age 71±10 years) undergoing PCI for 404 lesions with 472 DESs (71 patients for 138 lesions with 170 BP-DESs [91 Ultimaster and 79 Synergy] and 163 HD patients for 266 lesions with 302 DP-DESs [219 Xience, 53 Promus and 30 Resolute]) from 2011 to 2017. Two-year clinical outcomes were compared between BP-DES group and DP-DES group. The primary outcome measure was the incidence of target lesion revascularization (TLR), while the secondary outcome measures were the occurrence of cardiac death (CD), stent thrombosis (ST), myocardial infraction (MI), target vessel revascularization (TVR), non-TVR and major adverse cardiac event (MACE) defined as a composite of CD, MI, and TVR. Outcome measures were estimated by the Kaplan-Meier method and the differences between BP-DES group and DP-DES group were assessed by the log-rank test. We also conducted Cox's proportional hazard model to identify predictors for TLR occurrence.
Results
Baseline patient and lesion characteristics were similar between the two groups. The two-year incidence of TLR was not significantly different between BP-DES group and DP-DES group (14.1% vs. 22.2%, p=0.391). The two-year incidences of CD (17.3% vs. 17.5%, p=0.381), ST (0% vs. 3.9%, p=0.133), MI (4.2% vs. 5.8%, p=0.965), TVR (21.3% vs. 27.5%, p=0.586), non-TVR (26.1% vs. 31.3%, p=0.439) and MACE (41.1% vs. 42.6%, p=0.526) were also not different between the two groups. After multivariate analysis, diabetes mellitus (hazard ratio 1.97; 95% confidence interval 1.03–3.78, p=0.004) was independently associated with TLR occurrence in HD patients.
Two-year clinical outcomes of HD patient
Conclusions
At two-year follow-up after PCI, BP-DES had comparable safety and efficacy profiles to DP-DES in HD patients presenting CAD.
Acknowledgement/Funding
None
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Sunaga A, Hikoso S, Yamada T, Yasumura Y, Uematsu M, Abe H, Nakagawa Y, Higuchi Y, Fuji H, Mano T, Nakatani D, Mizuno H, Okada K, Kitamura T, Sakata Y. 128Change in geriatric nutritional risk index predicts one-year mortality in patients with heart failure with preserved ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Malnutrition is associated with adverse prognosis in heart failure patients. However, in patients with heart failure with preserved ejection fraction (HFpEF), the effects of change in nutritional status during hospitalization on prognosis is unknown. Geriatric nutritional risk index (GNRI) is a widely used objective index for evaluating nutritional status. Low GNRI (<92) has moderate or severe nutritional risk and high GNRI (≥92) has no or low nutritional risk.
Purpose
The purpose of this study was to clarify the effect of change in GNRI during hospitalization on one-year mortality and the association between the value of GNRI and one-year mortality in patients with HFpEF.
Methods
We prospectively registered patients with HFpEF in PURSUIT-HFpEF registry when they were hospitalized for heart failure in 29 hospitals. Preserved ejection fraction was defined as more than 50% of left ventricular ejection fraction. Of the 486 patients who registered PURSUIT-HFpEF, 228 cases with one-year follow-up data were examined. GNRI was calculated as follows: 14.89 × serum albumin (g/dl) + 41.7 × body mass index/22.
Results
Mean age was 81±10 years and 100 patients (44%) were male. During a median [interquartile range] follow-up period of 374 [342, 400] days, 28 patients (12%) died. Mortality was significantly higher in patients with low GNRI at admission (n=65) than those with high GNRI at admission (n=163) (26% vs. 9%, log-rank P=0.011) and higher in patients with low GNRI at discharge (n=109) than those with high GNRI at discharge (n=119) (22% vs. 6%, log-rank P=0.002). Multivariate analysis with Cox proportional hazard model with patient characteristics at admission revealed that low GNRI at admission was independently associated with mortality (hazard ratio: 0.96, 95% CI: 0.93–0.99, P=0.035) and that with patient characteristics at discharge revealed that low GNRI at discharge was independently associated with mortality (hazard ratio: 0.94, 95% CI: 0.91–0.97, P<0.001). We also compared mortality by dividing patients into 4 group according to whether GNRI was high or low at the time of admission and discharge. Patients with low GNRI at admission and at discharge (n=59) exhibited the highest mortality, on the other hand, patients with high GNRI at admission and low GNRI at discharge (n=50) exhibited higher mortality than those with high GNRI both at admission and at discharge (n=113) (Low and low: 28% vs. High and low: 14% vs. High and high: 6% vs. Low and high: 0%, log-rank P=0.010).
All cause mortality
Conclusion
GNRI at admission or at discharge was independently associated with one-year mortality in patients with HFpEF. Moreover, worsening GNRI during hospitalization is associated with the worse prognosis. It is important to prevent lowering GNRI during treatment of acute decompensated HFpEF.
Acknowledgement/Funding
Roche Diagnostics, FUJIFILM Toyama Chemical
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Ilhao Moreira R, Abreu A, Oliveira L, Oliveira M, Rodrigues I, Coutinho Cruz M, Portugal G, Mano T, Silva Cunha P, Santos V, Santa Clara H, Mota Carmo M, Cruz Ferreira R. 250Risk stratification of heart failure patients submitted to cardiac resynchronization therapy using a combination of renal function and 123I-mIBG scintigraphy. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez150.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mano T, Miyazaki HT, Kasaya T, Noda T, Sakuma Y. Double-Sided Nonalloyed Ohmic Contacts to Si-doped GaAs for Plasmoelectronic Devices. ACS OMEGA 2019; 4:7300-7307. [PMID: 31459829 PMCID: PMC6648010 DOI: 10.1021/acsomega.8b03260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 04/12/2019] [Indexed: 06/10/2023]
Abstract
There is increasing demand for the ability to form ohmic contacts without lossy intermediate layers on both the top and bottom sides of metal-semiconductor-metal plasmoelectronic devices such as quantum cascade lasers and metasurface photodetectors. Although highly Si-doped n-GaAs surfaces can allow an ohmic contact without alloying, conditions for realizing nonalloyed ohmic contacts to other n-GaAs surfaces, originally buried inside but exposed by removing the substrate, have yet to be studied. We discovered that nonalloyed ohmic contacts to initially buried surfaces with a practically low contact resistivity down to 77 K can be realized by fulfilling certain requirements, specifically keeping the Si-doping concentration within a narrow range of 7.5 × 1018 to 1.25 × 1019 cm-3 and setting the growth temperature of the succeeding upper layers to a low value of 530 °C.
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Hosomi K, Mori N, Mano T, Kishima H, Saitoh Y. Exploratory study of optimal conditions of repetitive transcranial magnetic stimulation of the primary motor cortex for chronic pain. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Ohtake A, Mano T, Mitsuishi K, Sakuma Y. Strain Relaxation in GaSb/GaAs(111)A Heteroepitaxy Using Thin InAs Interlayers. ACS OMEGA 2018; 3:15592-15597. [PMID: 31458215 PMCID: PMC6643550 DOI: 10.1021/acsomega.8b02359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/05/2018] [Indexed: 06/10/2023]
Abstract
We have systematically studied the strain relaxation processes in GaSb heteroepitaxy on GaAs(111)A using thin InAs interlayers. The growth with 1 ML- and 2 ML-InAs leads to formation of an InAsSb-like layer, which induces tensile strain in GaSb films, whereas the GaSb films grown with thicker InAs layers (≥3 ML) are under compressive strain. As the InAs thickness is increased above 5 ML, the insertion of the InAs layer becomes less effective in the strain relaxation, leaving residual strain in GaSb films. This leads to the elastic deformation of the GaSb lattice, giving rise to the increase in the peak width of X-ray rocking curves.
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Ilhao Moreira R, Pereira Da Silva T, Goncalves A, Mano T, Mendonca T, Coutinho Cruz M, Morais L, Rodrigues I, Feliciano J, Abreu A, Soares R, Cruz Ferreira R. P6521Comparison of peak oxygen consumption and percent of predicted oxygen consumption for predicting prognosis in young and female heart failure patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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64
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Hata Y, Iida O, Asai M, Masuda M, Okamoto S, Ishihara T, Nanto K, Kanda T, Tsujimura T, Okuno S, Matsuda Y, Takahara M, Mano T. P1633Further risk stratification by systemic factors in WIfI (Wound, Ischemia, and foot Infection classification system) stage 4 but not in stage 1-3 in critical limb ischemia. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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65
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Kanda T, Masuda M, Shizuta S, Kobori S, Inoue K, Kaitani K, Kurotobi T, Morishima I, Nakazawa Y, Matsuda Y, Iida O, Asai M, Mano T. P997Factors associated with quality-of-life improvement after catheter ablation of asymptomatic persistent atrial fibrillation: insights from the Kansai Plus Atrial Fibrillation (KPAF) Registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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66
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Ilhao Moreira R, Pereira Da Silva T, Goncalves A, Reis J, Mano T, Coutinho Cruz M, Morais L, Rodrigues I, Modas Daniel P, Mendonca T, Feliciano J, Abreu A, Soares R, Cruz Ferreira R. 5221Impact of cardiorespiratory fitness in the obesity paradox in heart failure with reduced ejection fraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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67
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Masuda M, Kanda T, Matsuda Y, Ohashi T, Tsuji A, Mano T. P356Pace-capture-guided ablation after contact-force-guided pulmonary vein isolation: Results of the randomized controlled DRAGON trial. Europace 2018. [DOI: 10.1093/europace/euy015.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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68
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Masuda M, Kanda T, Matsuda Y, Ohashi T, Tsuji A, Mano T. P773Centrifugal wave-front propagation speed for localizing the origin of ventricular arrhythmias: Investigation using a new ultra-high-resolution mapping system. Europace 2018. [DOI: 10.1093/europace/euy015.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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69
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Matsuda Y, Masuda M, Asai M, Iida O, Okamoto S, Ishihara T, Nanto K, Kanda T, Tsujimura T, Okuno S, Ohashi T, Kawai H, Tsuji A, Hata Y, Mano T. P1201The association with p-wave duration and the prevalence of left atrial low-voltage areas. Europace 2018. [DOI: 10.1093/europace/euy015.683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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70
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Matsuda Y, Masuda M, Asai M, Iida O, Okamoto S, Ishihara T, Nanto K, Kanda T, Tsujimura T, Okuno S, Ohashi T, Kawai H, Tsuji A, Hata Y, Mano T. P1169Severity of chronic kidney disease predicts the prevalence of left atrial low-voltage areas. Europace 2018. [DOI: 10.1093/europace/euy015.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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71
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Bannai T, Ohtomo R, Mano T, Tsuji S, Iwata A. Chronic cerebral hypoperfusion accelerates amyloid beta deposits in app/ps1 transgenic mice. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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72
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Mano T, Iwata A. In vitro AD model with human neuronal progenitor cells demonstrates BRCA1 involvement in DNA repair in differentiated neuronal cells. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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73
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Mano K, Mano T, Iwata A. Analysis of neuron-specific histone modifications. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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74
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Kanda T, Fujita M, Iida O, Masuda M, Okamoto S, Ishihara T, Nanto K, Tsujimura T, Sunaga A, Uematsu M, Mano T. P3367A novel index of left ventricular stiffness predicting clinical outcome in patients with heart failure. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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75
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Okuno S, Ishihara T, Iida O, Fujita M, Masuda M, Okamoto S, Nanto K, Kanda T, Tsujimura T, Matsuda Y, Ohashi T, Kawai H, Tsuji A, Hata Y, Mano T. P1387Three-year clinical outcomes of hemodialysis patients with coronary artery disease after second-generation drug-eluting stent implantation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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