Impact of systolic blood pressure on outcome of patients with nonvalvular atrial fibrillation / 中华心血管病杂志

Objective: To investigate the impact of different levels of systolic blood pressure on all-cause, cardiovascular and cerebrovascular mortality in patients with nonvalvular atrial fibrillation (AF). Methods: This is a prospective cohort study. Patients with AF or atrial flutter diagnosed by 12 lead electrocardiogram during physical examination of Kailuan Group employees from July 2006 to December 2017 or previously diagnosed with AF in an inpatient setting at a level 2A hospital or above were eligible for the study. Baseline clinical characteristics including age, gender, systolic blood pressure were collected. According to the level of systolic blood pressure, patients were divided into systolic blood pressure<120 mmHg (1 mmHg=0.133 kPa)group, 120 mmHg ≤ systolic blood pressure<140 mmHg group, and systolic blood pressure ≥140 mmHg group. The time of first diagnosis with AF was defined as the start of follow-up and the final follow-up ended at December 2018. Primary endpoint was all-cause death. Related information was obtained through the social security system or inpatient medical records. The cause of death was defined according to the International Classification of Diseases disease (ICD-10) codes by professional medical stuffs. Multifactorial Cox proportional risk model was used to analyze the relative risk ratios for the occurrence of death in different systolic blood pressure level groups. The relationship between systolic blood pressure levels and mortality in the patients with AF was analyzed by using natural spline function curves. Results: A total of 1 721 patients with AF were enrolled (average age=(67.0±9.0) years), patients were followed up for (6.3±3.8) years. 544 out of 1 721 patients with AF died during the follow-up period (31.61%). The cumulative incidence rate of all-cause mortality, cardiovascular and cerebrovascular death was 26.13%, 25.59%, 36.96% and 14.86%, 11.87%, 19.76% respectively in the systolic blood pressure<120 mmHg, 120 mmHg ≤ systolic blood pressure<140 mmHg and systolic blood pressure ≥140 mmHg groups. The cumulative incidence rate of all-cause, cardiovascular and cerebrovascular death was significantly higher in the group with systolic blood pressure ≥140 mmHg than in 120 mmHg ≤ systolic blood pressure<140 mmHg group (P<0.05). Compared with 120 mmHg ≤ systolic blood pressure<140 mmHg group, multivariable Cox proportional hazards regression models showed that the HRs (95%CI) for all-cause, cardiovascular and cerebrovascular death were 1.47 (1.20 to 1.79) and 1.69 (1.27 to 2.26) for the group with systolic blood pressure ≥ 140 mmHg (P<0.05). In contrast, the HRs (95%CI) for all-cause, cardiovascular and cerebrovascular death in the systolic blood pressure<120 mmHg group were 0.99 (0.73-1.35) and 1.24 (0.82-1.89), respectively, with no statistically significant differences between the two groups (P>0.05). The natural spline curve showed that there was a "U" relationship between systolic blood pressure levels and all cause death and cardiovascular and cerebrovascular death in this patient cohort. Systolic blood pressure greater than or less than 123 mmHg was associated with increased risk of death of AF patients in this cohort. Conclusion: Compared with systolic blood pressure<120 mmHg and systolic blood pressure≥140 mmHg group, the risk of all-cause and cardiovascular and cerebrovascular death is the lowest in AF patients with 120 mmHg ≤ systolic blood pressure<140 mmHg in this cohort.

Study on the effects of different risk stratifications in patients with diabetes mellitus: a clinical endpoint event / 中华流行病学杂志

Objective To estimate the relationship between the risk stratification of patients with diabetes and their clinical endpoint events.Methods In this cohort study,we prospectively followed 8302 individuals under the following situations: contents of fasting plasma glucose ≥7.0 mmol/L,being diagnosed as diabetes or having used hypoglycemic drugs from Kailuan study in which 101510 employees (81110 males,20400 females,who were being employed and those retired from the company were included) from the Kailuan Company,were screened.During the 38-53(48.01 ± 3.14) months of follow-up period,a new heart or cerebrovascular events were ascertained every six months.The impacts of different risk stratification in diabetic population on the incidence rates of cardiovascular and cerebrovascular events were estimated.Results Using the definitions of “people with ischemic cardiovascular disease incidence of 10-year risk assessment methods”developed by the Chinese Academy of Medical Sciences,Institute of Cardiovascular Disease,the study cohort was divided into four groups,namely,very low-risk,low risk,medium risk and high risk.(1) Along with the increasing risk of the disease,the incidence rates of total cardiovascular and cerebrovascular events,myocardial infarction,stroke,cardiovascular death and all-cause death rate also gradually increased and the differences were statistically significant (P＜0.01).However,the difference on incidence rate of sudden death was not significantly different (P＞0.05).(2)Compared to the very low-risk group,the age and sex adjusted relative risk for cardiovascular and cerebrovascular events were 1.42 (95％CI: 1.02-1.96,P＜0.05),2.26 (95％CI: 1.67-3.04,P＜0.01 ) for those with medium and high risk groups,respectively.Conclusion In diabetic patients,those risk factors as age,hypertension,body mass index,total cholesterol and smoking having been used on ischemic cardiovascular disease,could also be used to predict the occurrence of cardiovascular events.Along with the increasing risk factors,the risk of cardiovascular events incidence also increased.

Impact of patient compliance on the outcomes in hypertensive patients receiving hydrochlorothiazide based combination therapy with spironolactone or captopril / 中华心血管病杂志

<p><b>OBJECTIVE</b>To explore the impact of patient compliance on the long-term outcomes in hypertensive patients receiving hydrochlorothiazide (HCTZ) based combination therapy with spironolactone or captopril.</p><p><b>METHODS</b>A total of 853 patients with mild to moderate hypertension were recruited and randomly divided into HCTZ group (HCTZ 12.5 mg q.d), spironolactone group (HCTZ 12.5 mg q.d and spironolactone 20 mg q.d), and captopril group (HCTZ 12.5 mg q.d and captopril 25 mg bid) after 2-week placebo washout period and 6-week loading period for HCTZ. Since the efficacy of combination therapy was proven to be better than monotherapy 1 year after therapy beginning, patients in HCTZ group were randomly assigned to spironolactone group or captopril group. The patients were followed up for 4 years. Patients were divided to compliance (n = 424) or non-compliance group (n = 429) according test drug taking questionnaire. During the follow-up time, the blood pressure and the outcomes were recorded monthly, and blood biochemical parameters were determined once a year.</p><p><b>RESULTS</b>At the end of follow up, incidence of cardio-cerebral vascular events was significantly lower in compliance group (2 fatal, 8 non-fatal) than that in noncompliance group (7 fatal, 21 non-fatal, P < 0.05). Systolic blood pressure [-(19.4 +/- 20.6) mm Hg, 1 mm Hg = 0.133 kPa] and diastolic blood pressure [-(10.7 +/- 13.5) mm Hg] were significantly reduced compared values at baseline and noncompliance group (all P < 0.001) while the reduction did not reach statistically significance in noncompliance group [-(7.3 +/- 18.2) mm Hg and -(3.5 +/- 10.2) mm Hg, all P > 0.05 vs. baseline]. The serum BUN, Cr and UA levels in the compliance group were significantly higher and the serum K(+), CHO, LDL-C level were significantly lower than baseline values. The serum BUN, UA levels in the compliance group were significantly higher while the serum K(+), cholesterol levels were significantly lower than those in the noncompliance group (all P < 0.05).</p><p><b>CONCLUSIONS</b>This study indicates that patient compliance could affect the long-term outcome and antihypertensive efficacy in hypertensive patients receiving HCTZ based combination therapy with spironolactone or captopril.</p>

Effects of Long-term Treatment with Hydrochlorothiazide Combined Spironolactone or Captopril on Left Ventricular Hypertrophy in Hypertensive Patients / 中华高血压杂志

0.05);2)After 12,24,36 months' treatment,BP was decreased significantly in each group (P0.05).Conclusion Both combined spirono- lactone/HCTZ and captopril/HCTZ significantly reduced BP and LVMI or LVMI and the maguitude of reduction was further enhanced after prolonged treatment.