Relationship between rs1410996 polymorphism of CFH gene and essential hypertension patients of Han from Yunnan Province

OBJECTIVE

To explore the relationship between rs1410996 polymorphism of CFH gene and essential hypertension (EH) in the Yunnan Han population.

METHODS

rs1410996 of CFH gene was genotyped based on the collected clinical phenotypes of the EH patients (n = 520) and healthy people (n = 494).

RESULTS

On the genotype model and dominance model, there was no relationship between rs1410996 of CFH gene and EH after adjustment (P > 0.05). On the dominance model of male EH patients, the pulse pressure (PP) level of CC genotype carriers was higher than that of (CT + TT) genotype carriers after adjustment (P < 0.05).

CONCLUSION

rs1410996 of CFH gene has no correlation with the genetic susceptibility to EH in the Yunnan Han population, but it is related to the PP level in male patients.

Association Between Pulse Pressure With All-Cause and Cardiac Mortality in Acute Coronary Syndrome: An Observational Cohort Study

Background

Pulse pressure (PP) is a surrogate of aortic stiffness, and reflects cardiac performance and stroke volume. Previous studies have indicated that PP was a robust predictor of cardiovascular outcomes and mortality. However, results have been mixed, and very few studies have focused on the association of PP with mortality in acute coronary syndrome (ACS). Thus, we aimed to investigate the relationship between admission PP and the prognosis of patients with ACS.

Methods

This cohort study included 10,824 patients diagnosed with ACS from the Cardiovascular Center Beijing Friendship Hospital Database Bank (CBDBANK) from January 2013 to October 2018. Patients with cardiogenic shock, malignancy, severe trauma and, no PP at admission were excluded. Restricted cubic spline and Cox proportional hazards regression were used to evaluate the association between PP and 1-year all-cause and cardiac mortality.

Results

In the whole cohort, a total of 237 (2.19%) all-cause deaths were reported at 1-year follow-up. Restricted cubic spline analysis suggested a J-shaped relationship between PP and mortality. Among patients with ACS, both lower and higher PP levels were related to an increased risk of mortality (Pnon–linear &lt; 0.001); with a PP level of 30 or 80 mmHg, as compared with 50 mmHg, the adjusted hazard ratios for 1-year all-cause mortality were 2.02 (95% CI, 1.27–3.22) and 1.62 (95% CI, 1.13–2.33), respectively, after adjustments for potential confounders. Similar results were observed for cardiac deaths. The J-shaped relationship between PP and mortality remained in a series of subgroup analyses.

Conclusion

Our results suggested that both low and high PP were associated with an increased risk of mortality in patients with ACS.

Association Between Admission Pulse Pressure and Long-Term Mortality in Elderly Patients With Type 2 Diabetes Mellitus Admitted for Acute Coronary Syndrome: An Observational Cohort Study

Objective

The aim of this study was to assess the effect of pulse pressure (PP) at admission on long-term cardiac and all-cause mortality among elderly patients with type 2 diabetes mellitus (T2DM) admitted for acute coronary syndrome (ACS).

Methods

This is a retrospective observational study. The patients aged at least 65 years with T2DM and ACS from January 2013 to April 2018 were enrolled and divided into 4 groups according to admission PP: <50 mmHg; 50-59 mmHg; 60-69 mmHg, and ≥70 mmHg. Multivariate Cox proportional hazard regression analyses and restricted cubic spline were performed to determine the association between PP and outcomes (cardiac and all-cause death).

Results

A total of 2,587 consecutive patients were included in this cohort study. The mean follow-up time was 39.2 months. The incidences of cardiac death and all-cause death were 6.8% (n = 176) and 10.8% (n = 280), respectively. After multivariate adjustment in the whole cohort, cardiac and all-cause mortality were significantly higher in PP <50 mmHg group and PP ≥70 mmHg group, compared with PP 50-59 mmHg group. Further analysis in acute myocardial infarction (AMI) subgroup confirmed that PP <50 mmHg was associated with cardiac death [hazard ratios (HR) 2.92, 95% confidence interval (CI) 1.45-5.76, P = 0.002] and all-cause death (HR 2.08, 95% CI 1.20-3.58, P = 0.009). Meanwhile, PP ≥70 mmHg was associated with all-cause death (HR 1.78, 95% CI 1.05-3.00, P = 0.031). However, admission PP did not appear to be a significant independent predictor in unstable angina pectoris (UAP) subgroup. There is a U-shaped correlation between PP and cardiac and all-cause mortality in the whole cohort and UAP subgroup and a J-shaped correlation in the AMI subgroup, both with a nadir at 50-59 mmHg.

Conclusion

In elderly patients with T2DM admitted for ACS, admission PP is an independent and strong predictor for long-term cardiac and all-cause mortality, especially in patients with AMI.

The U-shape relationship between pulse pressure level on inpatient admission and long-term mortality in acute coronary syndrome patients undergoing percutaneous coronary intervention

The association between pulse pressure and long-term mortality was investigated among acute coronary syndrome (ACS) patients who received percutaneous coronary intervention (PCI). The study population included 5055 ACS patients in the Department of Cardiology of Beijing Friendship Hospital who were enrolled from January 2013 to July 2019. The median duration of follow-up was 24 months. Multivariate Cox regression was used to analyze the relationships between PP on inpatient admission and mortalities. Non-linear associations were studied by restricted cubic splines. Considering the heart function, the analyses were performed in the whole cohort and the LVEF > = 0.5 cohort separately. Subgroup analyses were performed according to the different diagnosis (the myocardial infarction subgroup and the unstable angina pectoris subgroup). When PP was used as categorical variable, the high PP group (≥61 mm Hg) significantly increased the risk of death compared with the intermediate PP group (50-60 mm Hg) in the both cohorts. When PP was used as continuous variable, a U-shape relationship were found between PP and mortalities in the whole cohort (p (for nonlinearity) = .005 and .003, respectively), with reference PP level of 55 mm Hg. However, this U-shape relationship disappeared in the LVEF > 0.5 cohort (p (for nonlinearity) = .111 and .117, respectively). The similar results were obtained in MI subgroup. From this study, the U-shape relationships between PP level and all-cause and cardiac mortalities were found in ACS patients who underwent PCI. The U-shape relationships disappeared in the LVEF > 0.5 cohort. The reference PP level was 55 mm Hg.

The association of resting postoperative systolic, diastolic, and mean blood pressure and pulse pressure with short- and long-term mortality in patients with acute coronary syndrome undergoing primary percutaneous coronary intervention

BACKGROUND

Admission blood pressure was closely associated with adverse cardiac events in acute coronary syndrome (ACS) patients. However, data regarding comparison of resting postoperative systolic, diastolic, and mean blood pressure and pulse pressure with short- and long-term mortality in patients with acute coronary syndrome undergoing primary percutaneous coronary intervention (PCI) was still lacking.

METHODS

The study analyzed 1987 ACS patients undergoing primary PCI, between January 2014 and October 2018. The primary outcomes were in-hospital cardiac and long-term all-cause mortality.

RESULTS

Bar tendency chart and adjusted odds ratios showed that the resting postoperative SBP≤100 mmHg, PP≤30 mmHg and MAP≤70 mmHg have higher in-hospital cardiac (SBP: adjusted OR=9.42, 95% CI: 1.95-45.53, P<0.01; PP: adjusted OR=8.61, 95% CI: 2.53-29.30, P<0.01; MAP: adjusted OR=4.01, 95% CI: 1.61-9.98, P<0.01) and long-term all-cause mortality (SBP: adjusted HR=4.18, 95% CI: 1.43-12.23, P<0.01; PP: adjusted HR=3.71, 95% CI: 1.66-8.24, P<0.01; MAP: adjusted HR=2.54, 95% CI: 1.14-5.65, P<0.01), and the relationship between resting postoperative SBP and in-hospital cardiac or long-term all-cause mortality seemed to follow a J-shaped curve with increased event rates at low and high groups.

CONCLUSIONS

The resting postoperative SBP≤100 mmHg, PP≤30 mmHg and MAP≤70 mmHg are independent adverse prognosticators in ACS patients undergoing primary PCI, and the relationship between SBP and mortality looks like a J-shaped curve.

U-shaped association of central pulse pressure with long-term prognosis after ST-segment elevation myocardial infarction

The relationship between central pulse pressure (CPP) measured at the time of primary percutaneous coronary intervention (PPCI) and long-term prognosis after ST-segment elevation myocardial infarction (STEMI) has not been investigated. CPP measurements were performed in 1348 patients with STEMI (327 women; mean age 62.5 ± 12.1 years) undergoing PPCI. Aortic systolic and diastolic blood pressure was measured before intervention. The primary outcome was 8-year all-cause mortality. The median [25-75th percentile] CPP value was 55.0 [43.0-70.0] mmHg. CPP correlated negatively with heart rate (P < 0.001), body mass index (P = 0.007), Killip class (P < 0.001) and initial area at risk (P < 0.001) and positively with age (P < 0.001), female sex (P < 0.001), diabetes (P = 0.012), arterial hypertension (P < 0.001) and glomerular filtration rate (P = 0.004). There were 181 deaths over the follow-up. In patients with CPP within the 1st, 2nd and 3rd tertiles, the Kaplan-Meier estimates of mortality were 17.3%, 10.8% and 24.2%, respectively; univariable hazard ratio [HR] =1.52, 95% confidence interval [CI] 0.99 to 2.32; P = 0.055 for tertile 1 vs. tertile 2 and HR =2.09 [1.36-3.21]; P < 0.001 for tertile 3 vs. tertile 2. For CPP values lower than 35 mmHg and higher than 71 mmHg, the association between CPP and all-cause mortality was significant (HR =1.276 [1.004-1.621] for the 35 mmHg value and HR =1.289 [1.003-1.657] for the 71 mmHg value) compared with the CPP reference value (54 mmHg). After adjustment, the association between CPP and all-cause mortality was attenuated (P = 0.304). In patients with STEMI undergoing PPCI there is a U-shaped association between CPP and mortality up to 8 years after PPCI.