scholarly journals Does Smoking Act as a Friend or Enemy of Blood Pressure? Let Release Pandora's Box

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Aurelio Leone

In spite of the great number of observations which show the certainty of cardiovascular damage from smoking, the opinions on that are not yet unanimous. There is a discrepancy that could be attributed to the lack of reproducible data particularly in some epidemiological studies. On the contrary, experimental findings conducted on both animals and humans give evidence of exactly reproducible results of cardiovascular alterations and among these the course of Blood Pressure (BP). Findings identify an increase in BP of active smokers or non-smokers exposed to passive smoking, while a lot of others refer a lowering of BP due to smoking. This discrepancy could be explained as follows. Initially, a vasoconstriction mediated by nicotine causes acute but transient increase in systolic BP. This phase is followed by a decrease in BP as a consequence of depressant effects played chronically by nicotine itself. Simultaneously, carbon monoxide is acting directly on the arterial wall causing, in the long run, structurally irreversible alterations. At this time, there is a change in BP that increases again, and often constantly, its levels following chronic exposure. Changes in response to antihypertensive drugs have been observed in hypertensive smokers since smoking influences metabolic steps of the drugs.

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fengyi Liu ◽  
Liang Wang ◽  
Yanchun Ding

Abstract Background Primary aldosteronism (PA), as a cause of secondary hypertension, can cause more serious cardiovascular damage than essential hypertension. The aldosterone-to-renin ratio (ARR) is recommended as the most reliable screening method for PA, but ARR screening is often influenced by many factors. PA cannot be easily excluded when negative ARR. Case presentation We report the case of a 45-year-old Chinese man with resistant hypertension. Three years ago, he underwent a comprehensive screening for secondary hypertension, including the ARR, and the result was negative. After that, the patient's blood pressure was still poorly controlled with four kinds of antihypertensive drugs, the target organ damage of hypertension progressed, and hypokalaemia was difficult to correct. When the patient was hospitalized again for comprehensive examination, we found that aldosterone levels had significantly increased, although the ARR was negative. An inhibitory test with saline was further carried out, and the results suggested that aldosterone was not inhibited; therefore, PA was diagnosed. We performed a unilateral adenoma resection for this patient, and spironolactone was continued to control blood pressure. After the operation, blood pressure is well controlled, and hypokalaemia is corrected. Conclusion When the ARR is negative, PA cannot be easily excluded. Comprehensive analysis and diagnosis should be based on the medication and clinical conditions of patients.


2020 ◽  
pp. 30-40
Author(s):  
M. G. Melnik

Purpose. To study the dynamics of blood pressure (BP) indicators under the influence of exogenously administered melatonin (Melatonin-SZ, Severnaya Zvezda, Russia) with various manifestations of desynchronosis of circadian BP rhythms (arterial hypertension – AH, high normal blood pressure) to determine the scheme of their effective compensation. Material and methods. The study included 101 patients with desynchronosis of circadian rhythms of blood pressure – 52 patients with hypertension, constituting the first and second groups, and 49 individuals with high normal blood pressure, representing the third and fourth groups. Patients of the second and fourth groups received conservative therapy, patients of the first and third groups combined it with melatonin. All patients underwent measurements of office blood pressure, home monitoring of blood pressure (ABPM), electrocardiography, 24-hour blood pressure monitoring (ABPM). Results and discussion. In patients of the first and third groups, compared with the traditional treatment groups, by the end of the observation period, a significantly (p < 0.05) decrease in office systolic blood pressure (SBP) / diastolic blood pressure (DBP) was established: in the first group compared with the second – 1.11 / 1.13 times, in the third group compared to the fourth – 1.43 / 1.58 times; significantly more (p < 0.05) pronounced decrease in SBP / DBP during DMAD – by 1.08 / 1.17 and 1.58 / 1.62 times, respectively, Significantly (p < 0.05) more pronounced decrease in average daily, average daily and average nighttime SBP / DBP during ABPM – by 1.13 / 1.20, 1.11 / 1.20, 1.23 / 1.25 and 1.47 / 1.31, 1.42 / 1.19, 1.54 / 1.41 times, respectively; reliably (p < 0.05) more frequent registration of the dipper rhythm type SBP / DBP – 1.6 / 1.4 and 1.6 / 1.4 times, respectively. In addition, the dynamics of patients in the first and third groups showed a significant (p < 0.05) decrease in the mean daily and mean nighttime SBP / DBP variability (SBP in the first group by 27.3 and 41.3 %, respectively; DBP in the first group by 20.1 and 26.3 %, respectively; SBP in the third group by 13.5 and 25.2 %, respectively; DBP in the third group by 12.2 and 28.2 %, respectively). Conclusions. With various manifestations of desynchronosis of circadian rhythms of blood pressure (AH, high normal blood pressure), the prescription of melatonin (Melatonin-SZ, Severnaya Zvezda, Russia) at a dose of 3 mg per day 30–40 minutes before bedtime for a month against the background of non-drug therapy and antihypertensive drugs led to a significantly more effective decrease in blood pressure at its office measurement, DMAD, ABPM with an improvement in the circadian rhythm of blood pressure and normalization of blood pressure variability.


2016 ◽  
pp. 76-84
Author(s):  
Khoa Bao Chau Thai ◽  
Thi Hong Phuong Vo

Background: Hypertension is a common condition in the world as well as in Viet Nam. If hypertension isn’t treated well, it can cause many serious complications. Controlling target blood pressure will bring positive effects on reducing mortality rate and also disabilities caused by diseases related to hypertension. Objectives: (1) Analyzing the use of medicines in treating hypertension. (2) Evaluating the effects of medicine usage in treating hypertension at the hospital of Hue University of Medicine and Pharmacy. Materials and methods: 388 patients were diagnosed as having hypertension with inpatient care at the Cardiovascular Department of Hue University of Medicine and Pharmacy’s hospital, using cross-sectional descriptive study methods. Results: All antihypertensive drugs in the research were contained in the antihypertensive list recommended by Vietnamese Society of Cardiology. Angiotensin converting enzyme inhibitor and calcium channel blocker were the two most popular drug groups (96.6% and 71.4%, respectively). The rate of using multi-therapy regimens was higher than the rate of using uni-therapy regimens in both initial therapies (64.7%>35.3%) and final therapies (61.9%>38.1%). The rate of patients having interactions between antihypertensive drugs and the other kinds of drugs was 7.5%. The rate of patients having reasonable prescriptions was 84.3%. Evaluating the effects of medicine usage in treatments showed that the rate of patients reaching target blood pressure before leaving the hospital was 67.3%. Most patients were evaluated as having good prognosis after treatment, up to 81.7%. Conclusions: All antihypertensive drugs in the research were contained in the antihypertensive list recommended by Vietnamese Society of Cardiology. The rate of using multi-therapy regimens was higher than the rate of using uni-therapy regimens. The rate of drug interactions was quite low; most patients were evaluated as having good prognosis after treatment. Key words: hypertension, antihypertensive drugs.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Sindt ◽  
T Madej ◽  
S Grimm ◽  
M Knaut

Abstract Objectives First generation baroreflex activation therapy (BAT) devices showed clinical efficacy in patients with drug-resistant arterial hypertension (AHT), but the safety profile was insufficient. Data regarding efficacy of second-generation devices were generated mostly from office blood pressure (BP) measurements or short-term 24-hour ambulatory blood pressure measurements (ABPM). We present a mid-term prospective registry to evaluate the efficacy and safety of recent BAT devices. Purpose The purpose of our study was to find a method that helps patients with drug-resistant arterial hypertension to control their blood pressure. Further we sought to reduce the overall amount of antihypertensive drugs to lessen side effects, as well as the effects of polypharmacy. Methods All patients receiving Barostim neo between November 2013 and June 2019 for resistant AHT were prospectively included into this observational study. ABPM was performed at baseline, in 3-month intervals in the first year after BAT implantation and in 6-month intervals afterwards for up to 42 months. Patients were assigned into two groups of responders and non-responders. Non-responders had a mean blood pressure drop (BPD) below 5mmHg. Responders in turn were categorized into 3 sub-groups (low-BPD between 5–9 mmHg, medium-BPD between 10–19 mmHg and high-BPD ≥20 mmHg). The primary efficacy end-points were changes in systolic and diastolic BP and number of antihypertensive medications. The primary safety end point was BAT-related major adverse events (MAE). Results 64 patients (mean age 63 years, 67% males) were included. Only patients who completed a 24-hour ABPM during a follow up were counted in the statistical analysis. We had an overall responder rate of 67.8%. Out of those 15.4% had low-BPD, 38.4% medium-BPD and 46.2% had a high-BPD. Systolic BP decreased over the 3.5-years period from 168±17 mmHg to 149±19 mmHg (n=19, mean change −18.8 mmHg; 95% confidence interval [CI]: −29.32 to −8.36; p&lt;0.0007). Diastolic BP decreased from 97±16 to 85±12 mmHg (n=19, mean change −11.7 mmHg; 95% CI: −19.2 to −4.2; p&lt;0.0021). The mean number of antihypertensive drugs was reduced from 6.9±1.3 to 5.2±1.5 (n=19, mean change −1.7; 95% CI: −0.8 to −0.27; p&lt;0.0009). The time course of primary end-points is shown in Fig.1. Freedom from BAT-related MAE was 93.5%. 4 perioperative complications (1 pocket bleeding, 1 pocket infection, 1 N. hypoglossus palsy, 1 hoarseness) resolved without residual side effects. There were five non BAT related deaths (7,8%) in the follow up period. Conclusion Systolic and diastolic ABP, as well as number and dosage of antihypertensive drugs decreased significantly during 3.5-years follow-up after Barostim neo implantation in 64 consecutive patients (of whom 62 completed at least one follow-up). No MAE associated with BAT were observed after the perioperative period. However, further controlled trials are needed to confirm the long-term efficacy of BAT. Figure 1. Mean blood pressure drop Funding Acknowledgement Type of funding source: None


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Amir Motamedi ◽  
Maryam Ekramzadeh ◽  
Ehsan Bahramali ◽  
Mojtaba Farjam ◽  
Reza Homayounfar

Abstract Background Hypertension is a common chronic disease with various complications and is a main contributing factor to cardiovascular disease (CVD). This study aimed to assess the association of diet quality, assessed by dietary diversity score (DDS), Mediterranean dietary score (MDS), diet quality index-international (DQI-I), and healthy eating index-2015 (HEI-2015) with the risk of hypertension. Methods This study recruited a total of 10,111 individuals (45.14% male) with mean age of 48.63 ± 9.57 years from the Fasa Cohort Study, Iran. Indices of diet quality, including MDS, HEI-2015, DQI-I, and DDS were computed by a 125-item Food Frequency Questionnaire. Participants were diagnosed as hypertensive if they had a diastolic blood pressure (DBP) ≥90 mmHg, systolic blood pressure (SBP) ≥140 mmHg,, or used antihypertensive drugs. Results Hypertension was prevalent in 28.3% of the population (21.59% in males and 33.74% in females). In the whole population, after adjustment for potential covariates, including daily energy intake, age, gender, physical activity, smoking, family history of hypertension, body mass index, and the level of education, higher adherence to the MDS (OR: 0.86, 95%CI = 0.75–0.99) and HEI-2015 (OR: 0.79, 95%CI = 0.68–0.90) was significantly associated with decreased risk of hypertension. The protective effect of HEI-2015 against hypertension remained significant for both males (OR: 0.80, 95%CI = 0.64–0.99) and females (OR: 0.78, 95%CI = 0.66–0.94), while, for MDS, this relationship disappeared in the subgroup analysis by gender. DQI-I and DDS were not related to the odds of hypertension. Conclusions Adhering to MDS and HEI-2015 diets could contribute to the prevention of hypertension.


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
C Canova ◽  
M Jare Zeddi ◽  
G Barbieri ◽  
M Gion ◽  
F Daprà ◽  
...  

Abstract Background Residents in a large area of the Veneto Region (North-Eastern Italy) were exposed to perfluoroalkyl substances (PFASs) via drinking water. Studies on the association between PFASs and blood pressure (BP) levels are limited and results are inconsistent. Using cross-sectional data from the Regional health surveillance program, we aimed to quantify the associations between PFAS serum concentrations and blood pressure and hypertension prevalence. Methods The study included 16,224 individuals aged 20-39 years. Pregnant women (n = 327), participants with self-reported diagnosis or under treatment (n = 296) or with missing information on the selected covariates (n = 114) were excluded, leaving 15,487 subjects. Hypertension (HYP) was defined as any self-reported diagnosis, use of antihypertensive drugs, or raised systolic/diastolic blood pressure (SBP)≥140, DBP ≥90 mmHg). Serum PFASs were measured by HPLC-MS. Generalized additive models were used to investigate the relation between each PFAS (perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), and perfluorononanoic acid (PFNA)) ln transformed and by decile, and SBP, DBP, HYP, adjusted for potential confounders. Results Both SBP and DBP increased significantly with an increase in the ln-transformed serum PFASs concentration in a monotonic way. The predicted increase in SBP and DBP were 1.62 (95% CI = 0.69, 2.55), 1.64 mmHg (95% CI = 0.96, 2.31) from lowest to highest decile of PFOA. The associations were stronger for SBP in men and DBP in women. One unit increase in each ln-PFAS was positively associated with an increased odds of HYP in men: PFOA OR = 1.07 (1.01-1.14), PFOS OR = 1.18 (1.05-1.32), PFHxS OR = 1.11 (1.03-1.19), PFNA OR = 1.19 (1.01-1.41). Conclusions Our findings suggest that exposure to PFAS is associated with increased blood pressure and thus may contribute as a risk factor for the development of cardiovascular diseases. Key messages Serum PFASs were associated with raised systolic blood pressure in men and diastolic blood pressure in women in a large highly exposed young adult population. Serum PFASs were associated with raised prevalence of hypertension in men.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. A. Salinero-Fort ◽  
F. J. San Andrés-Rebollo ◽  
J. Cárdenas-Valladolid ◽  
M. Méndez-Bailón ◽  
R. M. Chico-Moraleja ◽  
...  

AbstractWe aimed to develop two models to estimate first AMI and stroke/TIA, respectively, in type 2 diabetes mellitus patients, by applying backward elimination to the following variables: age, sex, duration of diabetes, smoking, BMI, and use of antihyperglycemic drugs, statins, and aspirin. As time-varying covariates, we analyzed blood pressure, albuminuria, lipid profile, HbA1c, retinopathy, neuropathy, and atrial fibrillation (only in stroke/TIA model). Both models were stratified by antihypertensive drugs. We evaluated 2980 patients (52.8% women; 67.3 ± 11.2 years) with 24,159 person-years of follow-up. We recorded 114 cases of AMI and 185 cases of stroke/TIA. The factors that were independently associated with first AMI were age (≥ 75 years vs. < 75 years) (p = 0.019), higher HbA1c (> 64 mmol/mol vs. < 53 mmol/mol) (p = 0.003), HDL-cholesterol (0.90–1.81 mmol/L vs. < 0.90 mmol/L) (p = 0.002), and diastolic blood pressure (65–85 mmHg vs. < 65 mmHg) (p < 0.001). The factors that were independently associated with first stroke/TIA were age (≥ 75 years vs. < 60 years) (p < 0.001), atrial fibrillation (first year after the diagnosis vs. more than one year) (p = 0.001), glomerular filtration rate (per each 15 mL/min/1.73 m2 decrease) (p < 0.001), total cholesterol (3.88–6.46 mmol/L vs. < 3.88 mmol/L) (p < 0.001), triglycerides (per each increment of 1.13 mmol/L) (p = 0.031), albuminuria (p < 0.001), neuropathy (p = 0.01), and retinopathy (p = 0.023).


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