苅尾 七臣

BACKGROUND: There are few data verifying the utility of the CHADS-P2A2RC score in comparison with the CHADS2 score for estimating net adverse clinical events (NACE) in chronic coronary syndrome (CCS) patients without atrial fibrillation (AF) in real-world settings. METHODS: We performed analysis for a total of 3985 CCS patients without AF who underwent percutaneous coronary intervention (PCI) between April 2013 and March 2019 for whom information was obtained from the CLIDAS (Clinical Deep Data Accumulation System)-PCI database. The primary endpoint was NACE defined as the composite of 3-point major adverse cardiovascular events (3P-MACE) (cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke) and GUSTO moderate/severe bleeding events. RESULTS: Kaplan-Meier analysis showed that both the CHADS-P2A2RC and CHADS2 scores stratified the risks. The incidences of NACE were stratified well by the very-high-risk category, which was uniquely defined as a CHADS-P2A2RC score of ≥6 (hazard ratio: 2.38, 95 % CI = 1.91-2.97, p-value <0.001). The area under the curve (AUC) in estimating NACE within 3 years was higher when the CHADS-P2A2RC score was used than when the CHADS2 score was used (0.67 vs. 0.62, p = 0.003). This was mainly due to the accuracy in estimating bleeding events (0.66 vs. 0.60, p = 0.006). CONCLUSIONS: The accuracy in estimating NACE after PCI for CCS patients without AF was higher when the CHADS-P2A2RC score was used than when the CHADS2 score was used, mainly due to the accuracy in predicting bleeding risk. Higher incidences of endpoints were well-stratified by a very-high-risk category defined as a CHADS-P2A2RC score of ≥6.

Heart failure (HF) guidelines recommend screening for non-symptomatic Stage B HF. Evidence on the utility of home blood pressure (BP) for risk stratification of Stage B HF is limited. We aimed to examine the association of home BP with the prevalence of Stage B HF and the risk of symptomatic HF. This study used cohort data with 14 days of morning and evening home BP measurements, biomarker sampling, and cardiovascular event follow-up among Japanese outpatients. Stage B HF was defined as N-terminal pro-B-type natriuretic peptide ≥125 pg/mL, and/or high-sensitivity cardiac troponin >22 ng/L in men and >14 ng/L in women. Among 3077 participants without prior cardiovascular disease including coronary artery disease, symptomatic HF, stroke, and others (mean age 64.5 years, 43.1% male), 548 participants had Stage B HF. In the multivariable logistic model, home systolic BP (SBP) was associated with Stage B HF (OR [95% CI] per 10 mmHg, 1.22 [1.13-1.33]). The area under the curve (AUC) was significantly improved by adding home SBP to the model including office SBP (AUC 0.757-0.763). During the median 5.0-year follow-up, Stage B HF was associated with a higher risk of HF hospitalization (adjusted HR [95% CI], 3.94 [1.45-10.70]). Home SBP tended to be associated with an increased risk of HF hospitalization (unadjusted HR [95% CI] per 10 mmHg, 1.29 [0.97-1.71], p = 0.081), but this association was not significant after adjustment. In conclusion, appropriate BP management using home BP monitoring before the progression of HF could help prevent symptomatic HF.

BACKGROUND: Lipid-lowering therapy with high-intensity statins has not been widely implemented in Japan for patients with coronary artery disease who undergo percutaneous coronary intervention (PCI). We examined the efficacy and safety of high-intensity statin therapy in a real-world setting. METHODS AND RESULTS: We used the Clinical Deep Data Accumulation System (CLIDAS) to accumulate multimodal data from the electronic medical records of 7 cardiovascular centers. We analyzed 9,690 patients who underwent PCI between 2013 and 2019 and completed a median 2.5-year follow-up (CLIDAS-PCI database). The risk of developing major adverse cardiac and cerebrovascular events (MACCE) was significantly greater in patients with acute (ACS) than chronic (CCS) coronary syndrome. High-intensity statins were prescribed to 49% of ACS patients and 33% of CCS patients within the first 30 days after the index PCI. After propensity score matching, MACCE event rates were similar between the high- and moderate-intensity statin groups. Importantly, among ACS patients, Cox proportional hazard analysis revealed that the rate of myocardial infarction was lower (adjusted hazard ratio [aHR] 0.65; 95% confidence interval [CI] 0.44-0.97) and the rate of stroke was greater (aHR 1.71; 95% CI 1.12-2.62) in the high-intensity statin group, driven mostly by intracranial hemorrhage. CONCLUSIONS: The CLIDAS-PCI database provides real-world evidence for the efficacy and safety of high-intensity statins in Japanese ACS patients who have undergone PCI.