scholarly journals The relationship between diastolic blood pressure and the risk of cardiovascular events in patients with atrial fibrillation whose systolic blood pressure was treated to less than 130 mmHg

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S Ikeda ◽  
M Iguchi ◽  
H Ogawa ◽  
K Ishigami ◽  
K Doi ◽  
...  

Abstract Background Hypertension is one of the major risk factors of cardiovascular events in patients with atrial fibrillation (AF). Low diastolic blood pressure (DBP) has been reported to be associated with the incidence of cardiovascular events, but current guidelines recommend an intensive blood pressure target of less than 130/80 mmHg for AF patients taking oral anticoagulants without mentioning the lower limits of DBP. Methods The Fushimi AF Registry is a community-based prospective survey of AF patients in a city of Japan. Follow-up data were available in 4,472 patients, and hypertensive patients who received prescription of any antihypertensive agents and whose systolic blood pressure was treated to less than 130 mmHg were available were examined (n=1,319). We divided the patients into four groups according to their DBP at baseline; G1 (DBP<60 mmHg, n=349), G2 (60≤DBP<70, n=434), G3 (70≤DBP<80, n=386) and G4 (80≤DBP, n=150), and compared the clinical background and outcomes among groups. Results The proportion of female was grater in G1 group, and the patients in G1 group were older. During the median follow-up of 2,458 days, in Kaplan-Meier analysis, the incidence rates of cardiovascular events (composite of cardiac death, ischemic stroke, systemic embolism, non-fatal myocardial infarction and heart failure hospitalization during follow up) were the highest in G1 group and the lowest in G3 group (G1: 7.2% per person-year vs. G2: 4.9% vs. G3: 2.2% vs. G4: 4.4%; p<0.01). Multivariate Cox proportional hazards regression analysis revealed that DBP was an independent determinant of cardiovascular events (G1 vs. G3; hazard ratio (HR): 1.96, 95% confidence intervals (CI): 1.39–2.76, G2 vs. G3; HR: 1.79, 95% CI: 1.28–2.50, G4 vs. G3; HR: 1.56, 95% CI: 0.99–2.45) (Figure 1). When we examined the association of DBP according to 10 mmHg increment, patients with excessively low DBP (<50 mmHg) had significantly higher incidence of cardiovascular events than patients with DBP of 70–79 mmHg (HR: 2.80, 95% CI: 1.81–4.33), and DBP exhibited J curve association with higher incidence of cardiovascular events (Figure 2). Conclusion In Japanese AF patients whose systolic blood pressure was treated to less than 130 mmHg, patients with excessively low DBP had significantly higher incidence of cardiovascular events, and DBP exhibited J curve association with higher incidence of cardiovascular events. FUNDunding Acknowledgement Type of funding sources: None.

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
TE Graca Rodrigues ◽  
N Cunha ◽  
P Silverio-Antonio ◽  
P Couto Pereira ◽  
B Valente Silva ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Introduction There is some evidence suggesting that exaggerated hypertensive response to exercise (HRE) may be associated with higher risk of future cardiovascular events, however the relationship between systolic blood pressure (SPB) during exercise test and stroke is not fully understood. Purpose To evaluate the ability to predict the risk of stroke in patients with HRE in exercise test. Methods Single-center retrospective study of consecutive patients submitted to exercise test from 2012 to 2015 with HRE to stress test. HRE was defined as a peak systolic blood pressure (PSBP) > 210 mmHg in men and > 190 mmHg in women, or a rise of the SBP of 60 mmHg in men or 50 mmHg in women or as a diastolic blood pressure > 90 mmHg or a rise of 10 mmHg. Patient’s demographics, baseline clinical characteristics, vital signs during the stress test and the occurrence of stroke during follow-up were analysed Results We included 458 patients with HRE (76% men, 57.5 ± 10.83 years). The most frequent comorbidities were hypertension (83%), dyslipidaemia (61%), previously known coronary disease (32%), diabetes (28%) and smoking (38%). Atrial fibrillation was present in 5.9% of patients. During a mean follow-up of 60 ± 2 months, the incidence of stroke was 2.1% (n = 8), all with ischemic origin. Considering the parameters analysed on exercise test, only PSBP demonstrated to be an independent predictor of stroke (HR 1.042, CI95% 1.002-1.084, p = 0.039,) with moderate ability to predict stroke (AUC 0.735, p = 0.0016) with a most discriminatory value of 203 mmHg (sensibility 56%, specify 67%). Regarding baseline characteristics, after age, sex and comorbidities adjustment, previously controlled hypertension was found to be an independent protective factor of stroke (OR 4.247, CI 95% 0.05-0.9, p = 0.036) and atrial fibrillation was an independent predictor of stroke occurrence (HR 8.1, CI95% 1.4-46.9, p = 0.018). Atrial fibrillation was also associated with hospitalization of cardiovascular cause and major cardiovascular events occurrence (mortality, coronary syndrome and stroke). Baseline SBP was associated with atrial fibrillation development (p = 0.008). Conclusion According to our results, PSBP during exercise test is an independent predictor of stroke occurrence and should be considered as a potencial additional tool to predict stroke occurrence, particularly in high risk patients. The identification of diagnosed hypertension as a protective factor of stroke may be explained by the cardioprotective effect of antihypertensive drugs.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Ikeda ◽  
M Iguchi ◽  
H Ogawa ◽  
Y Aono ◽  
K Doi ◽  
...  

Abstract Background Hypertension is one of the major risk factors of cardiovascular events in patients with atrial fibrillation (AF). However, relationship between diastolic blood pressure (DBP) and cardiovascular events in AF patients remains unclear. Methods The Fushimi AF Registry is a community-based prospective survey of AF patients in Japan. Follow-up data were available in 4,466 patients, and 4,429 patients with available data of DBP were examined. We divided the patients into three groups; G1 (DBP<70 mmHg, n=1,946), G2 (70≤DBP<80, n=1,321) and G3 (80≤DBP, n=1,162), and compared the clinical background and outcomes between groups. Results The proportion of female was grater in G1 group, and the patients in G1 group were older and had higher prevalence of heart failure (HF), diabetes mellitus (DM), chronic kidney disease (CKD). Prescription of beta blockers was higher in G1 group, but that of renin-angiotensin system-inhibitors and calcium channel blocker was comparable. During the median follow-up of 1,589 days, in Kaplan-Meier analysis, the incidence rates of cardiovascular events (composite of cardiac death, ischemic stroke and systemic embolism, major bleeding and HF hospitalization during follow up) were higher in G1 group and G3 group than G2 group (Figure 1). When we divided the patients based on the systolic blood pressure (SBP) at baseline (≥130 mmHg or <130 mmHg), the incidence of rates of cardiovascular events were comparable among groups. Multivariate Cox proportional hazards regression analysis including female gender, age (≥75 years), higher SBP (≥130 mmHg), DM, pre-existing HF, CKD, low left ventricular ejection fraction (<40%) and DBP (G1, G2, G3) revealed that DBP was an independent determinant of cardiovascular events (G1 group vs. G2 group; hazard ratio (HR): 1.40, 95% confidence intervals (CI): 1.19–1.64, G3 group vs. G2 group; HR: 1.23, 95% CI: 1.01–1.49). When we examined the impact of DBP according to 10 mmHg increment, patients with very low DBP (<60 mmHg) (HR: 1.50,95% CI:1.24–1.80) and very high DBP (≥90 mmHg) (HR: 1.51,95% CI:1.15–1.98) had higher incidence of cardiovascular events than patients with DBP of 70–79 mmHg (Figure 2). However, when we examined the impact of SBP according to 20 mmHg increment, SBP at baseline was not associated with the incidence of cardiovascular events (Figure 3). Conclusion In Japanese patients with AF, DBP exhibited J curve association with higher incidence of cardiovascular events. Funding Acknowledgement Type of funding source: None


Author(s):  
Wei-Chuan Tsai ◽  
Wen-Huang Lee ◽  
Huey-Ru Tsai ◽  
Mu-Shiang Huang

Background: We aim to investigate prognostic effects of carotid strain (CS) and strain rate (CSR) in hypertension. Methods: We prospectively recruited 120 patients being treated for hypertension (65.8 ± 11.8 years, 58% male) in this observational study. Peak circumferential CS and peak CSR after ejection were identified using two-dimensional speckle tracking ultrasound. Major cardiovascular events were any admission for stroke, acute coronary syndrome, and heart failure. Results: After a mean follow-up period of 63.6 ± 14.5 months, 14 (12%) patients had cardiovascular events. Age (75.3 ± 9.2 vs. 64.6 ± 11.6 years; p = 0.001), systolic blood pressure (131.8 ± 15.5 vs. 143.1 ± 16.6 mmHg; p = 0.021), diastolic blood pressure (74.6 ±11.4 vs. 82.1 ± 12.2 mmHg; p = 0.039), use of diuretics (71 vs. 92 %; p = 0.014), carotid CS (2.17 ± 1.02 vs. 3.28 ± 1.14 %; p = 0.001), and CSR (0.28 ± 0.17 vs. 0.51 ± 0.18 1/s; p <0.001) were significantly different between the patients who did and did not reach the end-points. Multivariate Cox regression analysis controlling for age, systolic blood pressure, diastolic blood pressure, and use of diuretics showed that CS (HR 0.425, 95%CI 0.223-0.811, p = 0.009) and CSR (HR 0.001, 95%CI 0.000-0.072, p = 0.001) were independent predictors for cardiovascular events. Conclusion: In conclusions, decreased CS and CSR were associated with cardiovascular events in hypertension.


2016 ◽  
pp. 31-40
Author(s):  
Long Nhon Phan ◽  
Van Minh Huynh ◽  
Thi Kim Nhung Hoang ◽  
Van Nham Truong

Objective: To evaluate the results of treatment achieved blood pressure goal (BP goal) and results of hypertensive patient management. Subjects and methods: A study of 400 hypertensive patient intervention, treatment and management after 2 year. To assess the results of BP target, monitor the use of medicines, the situation of hospitalization and complications of stroke. Results: Treatment: -100% of patients using diuretics and angiotensin-converting enzyme inhibitors (ACEIs), 33% of patients using angiotensin receptor blockers (ARBs), 46.25% of patients using calcium channel blockers (CCBs) and 19.5% of patients using beta-blocker. After 24 months of treatment: 50.5% of patients using 1 antihypertensive drug, 22% of patients using 2 drugs, 20.5% of patients using 3 drugs and 7% of patients taking more than 3 drugs. After 24 months of treatment: 91.75% achieved BP target and 8.25% fail. -Average risk stratification: 97.32% achieved BP target, hight risk stratification: 95.91% and very hight risk stratification: 73.03%. After 24 months of treatment. -Stage 1: 88.48% achieved BP target, stage 2: 92.85% achieved BP target and stage 3: 71.08% achieved BP target. After 24 months of treatment. -Hypertesive results before treatment were: 159.80 ± 20,22mmHg average systolic blood pressure and 82.97 ± 5,82mmHg average diastolic blood pressure. After treatment: average systolic blood pressure 125.38 ± 6,88mmHg and average diastolic blood pressure 79.83 ± 1,79mmHg. No adverse change in the index of tests about lipidemia, liver, kidney, glucomia and no recorded cases of drug side effects. Management of patients: -There were 89% non-medical examinational patients 1 month, 5.25% non-medical examinational patients 2 months, 4.25% non-medical examinational patients 3 months and 1.5% non-medical examinational patients 4 months. There were 93.5% drop pill 1 month, 3.25% drop pill 2 months, 4.25% drop pill 3 months and no patient drop pill over 3 months. In 24 months follow-up, 47% hospitalized inpatients <5 times, 44.5% hospitalized inpatients 5-10 times, 3% hospitalized inpatients 11-15 times, 4.75% hospitalized inpatients from 16-20 times and 0.75% hospitalized inpatients > 20 times. -There were 32.75% hospitalized inpatients for reasons of hypertension and 63.75% hospitalized inpatients for other common diseases. -There were a total of 11592 contacts directly by phone for medical advice, medical reminders and examinational reminders during 24 months of management. -There were 0.5% of patients stroked during 24 months of treatment and management. Conclusion: Treatment by protocol and management by phone directly for medical taking and re-examinational reminders is the best resulted method of achieving blood pressure target and reducing complications of stroke for hypertensive patients. Key word: : blood pressure target; risk stratification; treatment; management; stage; phone.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
F Battista ◽  
M Baldan ◽  
G Quinto ◽  
G Foccardi ◽  
M Vecchiato ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Background Obesity is a disease characterized by an increase of resting blood pressure and by an increased risk of developing hypertension and cardiovascular events. Exaggerated blood pressure during exercise increases risk of cardiovascular events independently from the baseline blood pressure levels. Purpose to evaluate the blood pressure response and the Workload-indexed blood pressure, during a cardio-pulmonary exercise test (CPET) before and after bariatric surgery (BS). Methods 257 patients with severe obesity performed maximal incremental CPET one month before and six months after BS under the same experimental protocol. The systolic blood pressure was measured at rest (SBPrest), at the submaximal effort (SBPsubmax) at the same exercise intensity (3 METs), at the exercise peak (SBP max) and lastly in the recovery phase (SBPrec). The submaximal and maximal Workload-indexed Sistolic Blood Pressure (W-SBPsubmax and W-SBPmax, respectively) were calculated with the formula: ΔBP/ΔMETs. Diastolic blood pressure was analysed at rest (DBPrest) and during the recovery phase (DBPrec). Results Age was on average 45 ± 10.3 years, BMI before BS was equal to 43.9 ± 6.4 Kg/m2 and 73.5% were females. After BS, there was a significant weight loss (-25.9 ± 6.2%). SBPrest and DBPrest decrease significantly after BS (ΔSBP: -10.2 ± 15.8 and -5.2 ± 11.6 mmHg; p &lt;0.001, respectively), also when considering percentage variation of pre BS values (ΔSBP%: -7.4 ±12.3% and -5.9 ± 15.9%; p&lt; 0.001, respectively). Submaximal and maximal systolic blood pressure showed significant reduction after BS both as ΔSBP (-15.0 ± 19.7 mmHg and -10.3 ± 25.1mmHg; p &lt; 0.001, respectively) and ΔSBP% (-9.6 ± 13.0% and -5.0 ± 14.0%; p &lt; 0.001, respectively). Furthermore, W-SBP decreased significantly during submaximal exercise (-3.0 ± 12.2 mmHg/METs; p 0.001) and at peak of exercise (-2.1 ± 4.8 mmHg/METs; p &lt; 0.001). Lastly, also systolic and diastolic blood pressure during the recovery phase showed a significant reduction (-7.5 ± 7.0 mmHg and -3.3 ± 6.0 mmHg; p &lt; 0.001). A Spearman’s correlation analysis showed a significant but weak correlation between ΔSBP%submax and % of weight loss (rho = 0.138; p = 0.027). Conclusions After BS, a marked reduction of all blood pressure values was detectable in all phases of CPET. W-SBPsubmax and W-SBPmax, as expression of load independent pressure response, decreased significantly. The reduction in the submaximal blood pressure was significantly but only weakly correlated with changes in body weight, suggesting its substantial independence from weight loss. These findings also support a potential role of CPET in detecting, high risk patients and adequate treatment effectiveness in patients with severe obesity. Abstract Figure. Exercise SBP before and after BS


2019 ◽  
Vol 4 (4) ◽  
pp. 78-88 ◽  
Author(s):  
T. Yu. Chichkova ◽  
S. E. Mamchur ◽  
M. P. Romanova ◽  
E. A. Khomenko

Aim. To estimate the dynamics of 24-hour blood pressure pattern in patients with resistant hypertension after renal denervation in comparison with the conservative treatment group.Methods. We enrolled 45 patients (21 men and 24 women, mean age 53 (43-66) years) with resistant hypertension. Renal denervation was performed in 25 patients using Vessix renal denervation system while the conservative treatment group included 20 patients. Monitoring of 24-hour blood pressure pattern was performed before renal denervation and after 1 year of follow-up.Results. Twelve months after renal denervation, patients with resistant hypertension had a significant reduction in office blood pressure (33 and 15 mmHg for systolic and diastolic blood pressure, respectively) and 24-hour average blood pressure (29 and 12 mmHg, for systolic and diastolic blood pressure, respectively). Another beneficial effect of renal denervation was a decrease in systolic blood pressure variability both throughout the day and at night (6 (5-12) and 7 (7-10) mmHg, respectively); however, no changes in diastolic blood pressure variability have been registered. Despite renal denervation did not affect the morning blood pressure surge, morning systolic blood pressure reduced from 174 (130180) mmHg to 156 (130-165) mmHg. After 1 year of follow-up, the proportion of dippers increased from 16 to 44%. In contrast to the patients who underwent renal denervation, there were no significant changes in 24-hour blood pressure pattern in the conservative treatment group.Conclusion. After 1 year of follow-up, renal denervation can be considered as an option superior to conservative treatment in patients with resistant hypertension, as it significantly improved 24-hour blood pressure pattern.


2020 ◽  
Author(s):  
Jinghao Han ◽  
Yue Kwan Choi ◽  
Wing Kit Leung ◽  
Eric Ming Tung Hui ◽  
Maria Kwan Wa Leung

Abstract Background: We aim to document the long-term outcomes of ischemic stroke patients and explore the potential risk factors for recurrent cardiovascular events and all-cause mortality in primary care.Methods: A retrospective cohort study performed at two general out-patient clinics (GOPCs) under Hospital Authority (HA) in Hong Kong (HK). Ischemic stroke patients with at least two consecutive follow-up visits during the recruitment period (1/1-30/6/2010) were enrolled. Patients were followed up regularly till the date of recurrent stroke, cardiovascular event, death or 31/12/2018. Risks of recurrent cardiovascular events and death were estimated by Cox proportional hazards model. The primary outcome was the occurrence of recurrent cerebrovascular event including transient ischemic stroke (TIA), ischemic stroke or hemorrhagic stroke. The secondary outcomes were all-cause mortality and coronary heart disease (CHD).Results: A total of 466 patients (mean age, 71.5 years) were enrolled. During a median follow-up period of 8.7 years, 158 patients (33.9%) died. Eighty patients (17.2%) had recurrent stroke and 57 (12.2%) patients developed CHD. Age was an independent risk factor for recurrent stroke, CHD and death. Statin therapy at baseline had a protective effect for recurrent stroke (hazard ratio [HR] =0.454, 95% confidence interval [CI] 0.269-0.766, P=0.003) and all-cause mortality (HR= 0.693, 95% CI 0.486-0.968, P=0.043). In addition, female sex, antiplatelet and a higher diastolic blood pressure (DBP) at baseline were also independent predictors for survival.Conclusions: Long term prognosis of ischemic stroke patients in primary care is favorable. Use of statin was associated with a significant decrease in stroke recurrence and mortality. Patients who died had a significant lower DBP at baseline, highlighted the need to consider both systolic and diastolic blood pressure in our daily practice.


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