scholarly journals Hypertensive response in exercise - a tool to predict stroke risk?

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.

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
P Silverio Antonio ◽  
P Alves Da Silva ◽  
J Valente Silva ◽  
J Brito ◽  
T Rodrigues ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Systolic blood pressure (SBP) rise during exercise is normal, but some patients present with hypertensive response to exercise (HRE). The clinical implication of such phenomenon is not fully elucidated, and treatment strategies are still uncertain. Purpose To evaluate the relationship between HRE and the development of major cardiovascular events (MACE) - death, acute coronary syndrome (ACS) and stroke. Methods Single-center retrospective study of consecutive patients submitted to exercise test (ET) from 2012 to 2015. Patient’s demographics, baseline clinical characteristics, vital signs during ET and MACE occurrence during follow-up were analysed. 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. Results We included 458 patients with HRE (76% men, 57.5 ± 10.83 years). The most frequent comorbidities were hypertension (83%) and dyslipidaemia (61%). During a mean follow-up of 60 ± 2 months, the incidence of MACE was 9.2% with ACS being the most frequent (4.2%), followed by mortality (3.8%) and stroke (2.1%). Patients with inconclusive ET had a fourfold higher risk of acute coronary events (OR 4.1, CI 95% 1.55-11.14, p = 0.005). Baseline SBP and PSBP were predictors of MACE occurrence (OR 1.022, CI 95% 1.004-1.04, p = 0.016, OR 1.031 CI 95% 1.012-1.051, p = 0.001, respectively) and were both associated with cardiovascular hospitalization (p = 0.006; p < 0.001, respectively). PSBP had moderate ability to predict hospitalization of cardiovascular (CV) cause (AUC 0.71, p < 0.001) with a cut-off of 193 mmHg (sensibility 91%, specify 40%) and had moderate ability to predict MACE (AUC 0.67, p < 0.001) with a cut-off of 198 mmHg (sensibility 78.6%, specify 46.1%). Regarding mortality, antihypertensive therapy prior to ET was protective (p = 0.042), with no difference between different classes of drugs. Conclusion Our data reveal a high rate of MACE occurrence between patients with HRE. The finding of diagnosed hypertension as a protective factor of stroke may be explained by the cardioprotective effect of antihypertensive drugs. An increased risk of ACS between patients with an inconclusive ET should lead to consider then for further investigation. HRE should be considered as part of CV risk assessment and adjusted lower HRE cut-off values should be considered in order to better predict MACE occurrence, particularly in high risk patients. Abstract Figure.


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.


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&lt;60 mmHg, n=349), G2 (60≤DBP&lt;70, n=434), G3 (70≤DBP&lt;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&lt;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 (&lt;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.


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&lt;70 mmHg, n=1,946), G2 (70≤DBP&lt;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 &lt;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 (&lt;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 (&lt;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


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Kato ◽  
K Usuda ◽  
H Tada ◽  
T Tsuda ◽  
K Takeuchi ◽  
...  

Abstract Background High plasma B-Type natriuretic peptide (BNP) level is associated with cardiac events or stroke in patients with atrial fibrillation (AF). However, it is still unknown whether BNP predicts worse clinical outcomes after catheter ablation ofAF. Purpose We aimed to see if plasma BNP level is associated with major adverse cardiac and cerebrovascular events (MACCE) after catheter ablation of AF. Methods We retrospectively analyzed 1,853 participants (73.1% men, mean age 63.3±10.3 years, 60.7% paroxysmal AF) who received first catheter ablation of AF with pre-ablation plasma BNP level measurement and completed follow-up more than 3 months after the procedure from AF Frontier Ablation Registry, a multicenter cohort study in Japan. We evaluated an association between plasma BNP level before catheter ablation and first MACCE in cox-regression hazard models adjusted for known risk factors. MACCE were defined as stroke/transient ischemic attack (TIA), cardiovascular events or all-cause death. Results The mean plasma BNP level was 120.2±3.7 pg/mL. During a mean follow-up period of 21.9 months, 57 patients (3.1%) suffered MACCE (ischemic stroke 8 [14.0%], hemorrhagic stroke 5 [8.8%], TIA 5 [8.8%], hospitalization for heart failure 11 [19.2%], acute coronary syndrome 9 [15.8%], hospitalization for other cardiovascular events 8 [14.0%] and all-cause death 11 [19.2%]). Plasma BNP level of patients with MACCE were significantly higher than those without MACCE (291.7±47.0 vs 114.7±3.42 pg/mL, P&lt;0.001). Multivariate analysis revealed that plasma BNP level (hazard ratio [HR] per 10 pg/mL increase 1.014; 95% confidence interval [CI] 1.005–1.023; P=0.001), baseline age (HR 1.052; 95% CI 1.022–1.084; P=0.001), heart failure (HR 2.698; 95% CI 1.512–4.815; P=0.001), old myocardial infarction (HR 3.593; 95% CI 1.675–7.708; P=0.001) and non-ischemic cardiomyopathy (HR 2.676; 95% CI 1.337 - 5.355; P=0.005) were independently associated with MACCE. At receiver-operating characteristic curve analysis, plasma BNP level before catheter ablation ≥162.7 pg/mL was the best threshold to predict MACCE (area under the curve: 0.71). Kaplan-Meier curve analysis (Figure) showed that the cumulative incidence of MACCE was significantly higher in patients with a BNP ≥162.7 pg/mL than in those with a BNP below 162.7 pg/mL (HR 4.85; 95% CI 2.86–8.21; P&lt;0.001). Conclusions Elevation of plasma BNP level was independently related to the increased risk of MACCE after catheter ablation ofAF. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Bristol-Meiers Squibb


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
P Paolisso ◽  
F Donati ◽  
L Bergamaschi ◽  
S Toniolo ◽  
E.C D'Angelo ◽  
...  

Abstract Background Myocardial infarction with non-obstructive coronary arteries (MINOCA) is a heterogeneous clinically entity and represents 5% to 10% of all patients with myocardial infarction (MI). Besides type 2 diabetes mellitus (DM), which is a common comorbidity in patients hospitalized for an acute coronary syndrome, high glucose levels (HGL) at admission are frequently observed in this context. The risk of major adverse cardiovascular events following acute coronary syndrome is increased in people with DM and HGL. However, evidence regarding diabetes and high glucose level among MINOCA patients is lacking. Purpose To examine the incidence of major adverse cardiovascular events (MACEs) in diabetic and non-diabetic MINOCA patients as well as according to HGL at presentation. Methods Among 1995 patients with acute MI admitted to our coronary care unit from 2016 to 2018, we enrolled 186 consecutive MINOCA patients according to the current ESC diagnostic criteria. HGL at admission was defined as serum glucose level above 180 mg/dl. All-cause mortality and a composite end-point of all-cause mortality and myocardial re-infarction were compared. The median follow-up time was 19.6±12.9 months. Results Diabetic MINOCA patients were older (mean age 75.5±9.6 vs 66.5±14.7; p=0.002) and with higher prevalence of hypertension (p=0.016). Conversely, there were no significant differences in gender, BMI, dyslipidemia and atrial fibrillation. Similarly, no significant differences were observed regarding clinical and ECG presentation, echocardiographic features and laboratory tests. The rates of death (30.8% vs 8.3%; p=0.013) and MACEs (22.2% vs 6.8%; p=0.025) were significantly higher in MINOCA-DM patients; conversely, no significant differences were observed for re-MI (p=0.58). At multivariate regression model adjusted for age and sex, type 2 DM was not an independent predictor of all cause deaths (p=0.36) and MACE (p=0.24). Patients with admission HGL had similar baseline characteristics, cardiovascular risk factors, clinical presentations, echocardiographic features and troponin values as compared to patients with no-HGL. HGL at admission was associated with higher incidence of all-cause-death (p&lt;0.001) and MACE (p=0.003) during follow-up compared to patients with no HGL; conversely, no significant differences were observed in the incidence of re-MI (p=0.7). Multivariate analysis adjusted for age and sex demonstrated that HGL was an independent predictor of death (HR 6.25; CI 1.64–23.85; p=0.007) and MACEs (HR 6.17; CI 1.79–21.23, p=0.004). Conclusion In MINOCA patients, HGL was an independent risk factor for both MACEs and death while type 2 DM was not correlated with these hard endpoints. As a consequence, HGL could have a still unexplored pathophysiological role in MINOCA. Properly powered randomized trials are warranted. Funding Acknowledgement Type of funding source: None


2009 ◽  
Vol 20 (5) ◽  
pp. 327-331 ◽  
Author(s):  
Mariana Vargas Furtado ◽  
Ana Paula Webber Rossini ◽  
Raquel Barth Campani ◽  
Carolina Meotti ◽  
Majorie Segatto ◽  
...  

2020 ◽  
Vol 9 (5) ◽  
pp. 1475
Author(s):  
Milena Racis ◽  
Wojciech Sobiczewski ◽  
Anna Stanisławska-Sachadyn ◽  
Marcin Wirtwein ◽  
Elżbieta Bluj ◽  
...  

The CYBA gene encodes the regulatory subunit of NADPH oxidase, which maintains the redox state within cells and in the blood vessels. That led us to investigate the course of coronary artery disease (CAD) with regards to CYBA polymorphisms. Thus, we recruited 1197 subjects with coronary atherosclerosis and observed them during 7-year follow-up. Three CYBA polymorphisms: c.214C>T (rs4673), c.-932G>A (rs9932581), and c.*24G>A (1049255) were studied for an association with death, major adverse cardiovascular events (MACE) and an elective percutaneous coronary intervention or coronary artery bypass grafting (PCI/CABG). We found an association between the CYBA c.214C>T polymorphism and two end points: death and PCI/CABG. CYBA c.214TT genotype was associated with a lower risk of death than C allele (9.5% vs. 21%, p < 0.05) and a higher risk of PCI/CABG than C allele (69.3% vs. 51.7%, p < 0.01). This suggests that the CYBA c.214TT genotype may be a protective factor against death OR = 0.47 (95%CI 0.28–0.82; p < 0.01), while also being a risk factor for an elective PCI/CABG OR = 2.36 (95%CI 1.15–4.82; p < 0.05). Thus, we hypothesize that among patients with coronary atherosclerosis, the CYBA c.214TT genotype contributes to atherosclerotic plaque stability by altering the course of CAD towards chronic coronary syndrome, thereby lowering the incidence of fatal CAD-related events.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
R Henriksson ◽  
D Huber ◽  
T Mooe

Abstract Background Cardiovascular secondary preventive strategies need improvement. The proportion of patients reaching guideline recommended treatment targets are low. Purpose We investigated if nurse-led, telephone-based follow-up including medical titration was superior to usual care in controlling blood pressure (BP) and low-density lipoprotein cholesterol (LDL-C) levels 36 months after an acute coronary syndrome (ACS). Methods All patients admitted with ACS at the local county hospital between 1st January 2010 and 31st December 2014 were screened for inclusion based on their ability to participate in a telephone-based follow-up. Participants were randomized into two parallel groups, an intervention group and a control group receiving usual care. BP and LDL-C were measured at one month, 12, 24 and 36 months. The intervention group received counseling and medical titration to attain treatment targets of BP (<140/<90 mmHG) and LDL-C (<2.5/<1.8 mmol/L). The primary outcome was LDL-C at 36 months. Results Out of 962 randomized patients, 797 were available for analysis after 36 months. In the intervention group, mean systolic blood pressure (SBP) was 4.1 mmHg lower (95% CI 1.7 - 6.4, p=0.001), diastolic blood pressure (DBP) was 2.8 mmHg lower (95% CI 1.4- 4.4, p<0.001) and mean LDL-C was 0.26 mmol/L lower (95% CI 0.12 - 0.4, p<0.001) when compared to the control group. The proportion of patients reaching treatment target goals was also significantly higher in the intervention group. Conclusions After 36 months of follow-up the nurse-led, telephone-based intervention led to significantly lower systolic blood pressure, diastolic blood pressure and LDL-C levels when compared to the control group. The intervention group also had a larger proportion of patients reaching target values. Acknowledgement/Funding The study received funding from the research and development unit, Region Jämtland Härjedalen.


Sign in / Sign up

Export Citation Format

Share Document