Prevalence of coronary artery disease risk factors in Iran: a population based survey

Economic burden of cardiovascular diseases among elderly patients in Iran: a case from a developing country

BACKGROUND

Cardiovascular diseases (CVDs) are the leading cause of mortality and morbidity worldwide, particularly among the aging population. This study aims to evaluate the economic burden of CVDs among Iranians aged 60 years and older.

METHODS

A cost-of-illness study was conducted using a prevalence-based approach from a societal perspective. Cost analysis employed the bottom-up micro-costing method to assess direct medical and non-medical costs, while indirect costs were calculated using the human capital approach. Data were sourced from medical records of individuals aged 60 and older with CVDs registered in the hospital information systems of public and private hospitals in southeastern Iran. Additionally, structured face-to-face interviews were conducted with 160 caregivers or relatives serving as companions of elderly patients, using a structured questionnaire to gather data on healthcare utilization. Sensitivity analyses were performed, along with projections of the future economic burden of CVDs.

RESULTS

The annual total cost of CVDs among people aged 60 years and above in Iran was estimated at US$ 1,885,091,171.7 (about 1.88 billion), equivalent to 1.27% of the Iran's GDP in 2021. Direct medical costs accounted for 90.62% of the total, with 54.72% attributed to ambulatory care. The average cost of CVDs per patient was US$ 446.2. The results of two-way sensitivity analysis provided an estimated cost range between US$ 1.2 billion and US$ 2.7 billion. By 2030, the total cost of CVDs is projected to reach US$ 21 billion.

CONCLUSIONS

The elderly population with CVDs imposes a growing economic burden on Iran's healthcare system and society. This underscores the urgent need for effective and cost-effective interventions to prevent and manage CVDs in Iran.

Examining the Outcomes of Hybrid Coronary Revascularization in Acute STEMI Patients from 2015 to 2022

Background

The global rise of chronic diseases, especially cardiovascular disease (CVD), poses a significant public health challenge, being a leading cause of death and disability worldwide. In Iran, the surge in CVD incidence and its risk factors, along with a decrease in the age of onset, has notably increased the reliance on coronary artery bypass grafting (CABG) as a life-saving intervention. Staged hybrid coronary revascularization (HCR), which combines percutaneous coronary intervention with delayed CABG, offers a novel approach for patients with complex coronary artery disease, potentially improving survival and reducing complications. Considering the newness of this treatment method and the limitations of previous studies, we investigated the results of staged HCR in acute ST-elevation myocardial infarction (STEMI) patients in this study.

Methods

This observational study was performed on consecutive patients with acute STEMI who underwent staged HCR and were referred to Valiasr and Razi hospitals in Birjand from 2015 to 2022. The required information (demographic information, angiography result, and operation side effects) was collected in a checklist. If necessary, the patients were contacted by phone. After collecting the data, they were entered into SPSS version 16 software.

Results

This study was conducted on 33 patients with a mean age of 64.88 ± 9.24 years (69.7% male). The average hospital stay was 11.6 ± 8.9 days (3 to 72 days). The mean ejection fraction and syntax score were 36.5% ± 10.2% and 31.21 ± 6.7, respectively. Following surgery and during hospitalization, arrhythmias were observed, including 33.3% with premature ventricular contractions, 18.1% with atrial fibrillation, and 3.1% with ventricular tachycardia. The average number of pack cells (red blood cells that have been separated for blood transfusion) and creatinine changes before and after hybrid surgery were 640.9 ± 670.9 cc and 0.055 ± 0.07. In the follow-up, 9.09% of patients had late mortality, 6.1% of patients had urinary tract infections during hospitalization, 6.1% of patients had surgical site infections, 3.1% needed dialysis, and none of the studied patients had premature death or need for reintervention.

Conclusions

The results of our study indicated that staged HCR performed early after an ACS is not associated with significant mortality or complications. Therefore, it is advisable to consider staged HCR as a surgical option in appropriate cases.

The effect of educational program based on the clinical practice protocol on treatment adherence, self-efficacy and quality of life of patients undergoing coronary artery bypass graft surgery

BACKGROUND AND AIM

Educating the patients undergoing coronary artery bypass graft (CABG) before and after surgery is one of the most important factors for success in this surgery, as it improves their treatment adherence, self-efficacy, and quality of life. The aim of this study was to determine the impact of the educational program based on clinical practice protocol upon treatment adherence, self-efficacy, and quality of life of patients undergoing CABG surgery in Tehran, Iran, during the period 2021-2022.

MATERIALS AND METHODS

This experimental study was conducted on 100 patients who were undergoing CABG and were hospitalized in a public hospital (Shahid Modarres Educational Hospital) in Tehran, Iran, in 2021-2022. Patients were randomly assigned to intervention (n = 50) and control (n = 50) groups. Four questionnaires (demographic-clinical questionnaire, Modanloo's adherence to treatment questionnaire, Sullivan's self-efficacy questionnaire, and McNew's quality of life questionnaire) were completed by both intervention and control groups before and 1 month after the educational intervention. The intervention group received an education program based on the clinical practice protocol. Data were analyzed using descriptive and inferential methods in Statistical Package for the Social Sciences (SPSS) 22 software.

RESULTS

The results of the study showed that the intervention and control groups were similar in terms of demographic and clinical characteristics. The average scores of treatment adherence, self-efficacy, and quality of life 1 month after the intervention were significantly higher in the intervention group compared to the control group. Also, the average scores of treatment adherence, self-efficacy, and quality of life were significantly higher 1 month after the intervention than before in the intervention group (P < 0.001).

CONCLUSIONS

The results of this study showed that education program based on the clinical practice protocol can be effective and useful for increasing the level of treatment adherence, self-efficacy, and quality of life of patients undergoing CABG.

Timely referral to health centers for the prevention of cardiovascular diseases: IraPEN national program

Introduction

The IraPEN program is an adapted version of the WHO-PEN program designed to prevent four major non-communicable diseases in Iran. This study aimed to determine the rate of compliance and related factors among individuals participating in the IraPEN program for the prevention of cardiovascular disease.

Method

In this study, compliance was defined as timely referral to the health center as scheduled, and the researchers approached four pilot sites of IraPEN from March 2016 to March 2018. Sex-stratified logistic regressions were applied to investigate factors related to compliance. However, it is important to note that in this study, compliance was defined as compliance to revisit, not compliance to taking prescribed medications or behavioral lifestyle changes.

Results

The total compliance rate, including timely compliance and early and late compliance, was 16.5% in men and 23.3% in women. The study found that cardiovascular risk factors such as diabetes, hypertension, hypercholesterolemia, and being underweight were associated with lower compliance. The higher calculated risk of CVD was associated with higher compliance, but after adjusting for cardiovascular risk factors, high-risk individuals showed lower compliance. There was negligible interaction between sex and other factors for compliance.

Conclusion

The compliance rate with scheduled programs for cardiovascular preventive strategies was very low, and high-risk individuals were less compliant, regardless of their high level of risk factors. The study recommends further training to increase awareness and knowledge regarding the IraPEN program and the prevention of non-communicable diseases among high-risk populations.

The relationship between ultra processed food consumption and premature coronary artery disease: Iran premature coronary artery disease study (IPAD)

Background

Ultra-processed foods (UPF) consumption may affect the risk of PCAD through affecting cardio metabolic risk factors. This study aimed to evaluate the association between UPFs consumption and premature coronary artery disease (PCAD).

Methods

A case-control study was conducted on 2,354 Iranian adults (≥ 19 years). Dietary intake was assessed using a validated 110-item food frequency questionnaire (FFQ) and foods were classified based on the NOVA system, which groups all foods according to the nature, extent and purposes of the industrial processes they undergo. PCAD was defined as having an stenosis of at least single coronary artery equal and above 75% or left main coronary of equal or more than 50% in women less than 70 and men less than 60 years, determined by angiography. The odds of PCAD across the tertiles of UPFs consumption were assessed by binary logistic regression.

Results

After adjustment for potential confounders, participants in the top tertile of UPFs were twice as likely to have PCAD compared with those in the bottom tertile (OR: 2.52; 95% CI: 1.97-3.23). Moreover, those in the highest tertile of the UPFs consumption had more than two times higher risk for having severe PCAD than those in the first tertile (OR: 2.64; 95% CI: 2.16-3.22). In addition, there was a significant upward trend in PCAD risk and PCAD severity as tertiles increased (P-trend < 0.001 for all models).

Conclusion

Higher consumption of UPFs was related to increased risk of PCAD and higher chance of having severe PCAD in Iranian adults. Although, future cohort studies are needed to confirm the results of this study, these findings indicated the necessity of reducing UPFs intake.

Evaluation of the Relationship between Family History and Occurrence, Anatomical Location, and Extent of Coronary Artery Disease among Patients Undergoing Coronary Angiography

Background

A positive family history (FH) of coronary artery disease (CAD) is considered an independent risk factor for developing CAD. However, the relationship between the occurrence, angiographic anatomical location of the stenosis, and extent of CAD and the risk factors in the patients and their relatives is not well defined. Evaluation of this relationship is our main goal in this study.

Methods

In this descriptive cross-sectional study, the FH data for CAD and premature death in first-and second-degree relatives, angiographic anatomical location of the stenosis, the extent of CAD in the patients and their relatives, as well as the relationship between other risk factors and the extent of CAD, were collected from 300 adult patients undergoing coronary angiography at Farshchian cardiovascular hospital in Hamadan (Iran) between March 2020 and 2021. SPSS 24 and the chi-square, Fisher exact, and student t tests were used to analyze data. The significance level was considered P < 0.05.

Results

Out of 300 patients, 185 (61.7%) were men and 115 (38.3%) were women. A total of 177 patients (59%) in maternal and 82 patients (27.3%) in paternal relatives had an FH of CAD. There was a significant relationship between the severity of coronary artery involvement and risk factors (P < 0.001). Moreover, there was no significant relationship between the location of coronary artery involvement of the right coronary artery, left coronary artery, and left anterior descending artery and the severity of involvement of patients undergoing coronary angiography and their first- and second-degree relatives (P = 0.480).

Conclusion

Our findings suggest that there was no significant relationship between the anatomical location of the stenosis and the number of vessels involved and the FH of the patients. In patients with an FH, the extent of CAD significantly increased according to their risk factors for heart disease.

The effect of a low renal acid load diet on blood pressure, lipid profile, and blood glucose indices in patients with type 2 diabetes: a randomized clinical trial

BACKGROUND

Observational studies have reported that dietary renal acid load has an important role in insulin resistance and metabolic factors. The aim of the present study was to assess the effect of a low renal acid load diet (LRALD) on blood pressure, lipid profile, and blood glucose indices in patients with type 2 diabetes.

METHODS

In this parallel randomized clinical trial, 80 patients with type 2 diabetes were randomly assigned to the LRALD (n = 40) or control (n = 40) groups, for 12 weeks. Both groups received a balanced diet and a list of nutritional recommendations based on healthy eating behaviors. In the LRALD group, food items with low renal acid load were prescribed. Primary outcomes including: fasting blood glucose (FBG), hemoglobin A1c (HbA1c), fasting serum insulin, quantitative insulin sensitivity check index (QUICKI), homeostatic model assessment for insulin resistance (HOMA) and secondary outcomes including: weight, systolic blood pressure (SBP), diastolic blood pressure (DBP), triglyceride (TG), total cholesterol (TC), low-density lipoprotein (LDL), and high-density lipoprotein (HDL). were measured at baseline and end of the study. The present trial was registered at IRCT.ir (IRCT20130903014551N5).

RESULTS

Seventy subjects completed the study (n = 35 in control group and n = 36 in LRALD). Weight (P < 0.001), body mass index (P < 0.001), FBG (P < 0.001), HbA1c (P < 0.001), SBP (P = 0.004), and TG (P = 0.049) were reduced and HDL (P = 0.002) was increased in both groups, compared with baseline. After adjusting for baseline values, DBP (P = 0.047) was reduced in the LRALD group compared with control group. Results had no changes after using intention to treat analysis.

CONCLUSION

A LRALD may decrease DBP in type 2 diabetic patients. However, it elicited no significant effect on lipid profile compared with a healthy diet.

TRIAL REGISTRATION

This randomized clinical trial was registered at IRCT.ir (IRCT20130903014551N5).

Reverse expression pattern of sirtuin-1 and histone deacetylase-9 in coronary artery disease

BACKGROUND

SIRT1 and HDAC 9 genes are related to inflammation and may contribute to the pathogenesis of coronary artery disease (CAD). We aimed to evaluate the expression level, methylation profile and polymorphisms of these genes in CAD patients.

METHODS

In this study, 50 CAD patients and 50 healthy individuals were recruited. The expression level change was evaluated using the TaqMan Real-Time PCR method. The methylation of genes promoter and genotyping of polymorphisms were evaluated by the HRM.

RESULTS

The expression level of SIRT1 was reduced while the HDAC9 expression level showed a significant elevation (p < .001). The SIRT1 gene promoter was hypomethylated and the HDAC9 gene promoter was hypermethylated in CAD patients. Also, CG + GG genotype in SIRT1 and both genotypes in the HDAC9 gene were associated with expression change.

CONCLUSIONS

SIRT1 and HDAC9 genes, expression changes can be suggested as a potential biomarker for CAD detection.

Illness Perception, Self-Efficacy, and Medication Adherence in Patients With Coronary Artery Disease: A Path Analysis of Conceptual Model

Introduction

Illness perception and self-efficacy in patients with coronary artery disease (CAD) may affect medication adherence, which is one of the most important challenges in disease management in this group of patients.

Objective

The present study aimed to investigate the factors influencing medication adherence in CAD patients, especially the effect of illness perception and self-efficacy.

Methods

This study was cross-sectional and conducted from April to September 2021. A total of 259 patients with confirmed CAD were selected by convenience sampling method based on inclusion criteria. Illness perception, self-efficacy, and medication adherence were investigated using Brief IPQ, SCSES, and MARS_10 questionnaires, respectively. The data were analyzed using the STATA software (version 14) and the regression path analysis method.

Results

Patients had moderate illness perception and high self-efficacy, and 61.8 of them adhered to their medication regimen. Greater illness perception, better self-efficacy, and higher education had a positive effect on medication adherence, and increasing age had a negative effect on it. The final path model shows a good fit of the data in the model (χ2: 0.37, df: 274, χ2/df: 0.36, CFI: 1, IFI: 0.95, TLI: 1.07, and RMSEA: 0.00).

Conclusion

The results of the present study suggest that patients' illness perception can play an important role in predicting self-efficacy in disease management and the level of medication adherence in patients with CAD. To improve self-efficacy and medication adherence, future intervention studies should focus on the patient's illness perceptions and their improvement.

Cost-Effectiveness Rivaroxaban versus Enoxaparin for Prevention of Venous Thromboembolism after Knee Replacement Surgery in Iran

Background

The highest risk of developing venous thromboembolism (VTE) is seen in patients who have undergone orthopedic surgery. One of the most common methods to reduce the risk of thromboembolism in these patients is anticoagulant prophylaxis. Rivaroxaban is one of the anticoagulants that has a lower cost than other anticoagulants and has a significant effect on people's quality of life as it is edible. The study aimed to determine the cost-effectiveness of rivaroxaban as compared with enoxaparin for venous thromboembolism prophylaxis in knee replacement patients in Iran.

Methods

It was a quantitative and economic evaluation study with a cost-effectiveness approach and an applied study because its results could be used directly for policy-making and decision-making in the health system. The study was conducted in 2019 and 2020. This study considered the health system perspective. The study population included all knee replacement patients. The sample included 203 patients referred to Shafa Yahyaeian Hospital and 300 patients referred to Rasoul Hospital in Tehran. The study was conducted in two steps. A systematic review of studies was conducted in the first step. The CHEERS checklist was used to evaluate the quality of the studies in the systematic review. The EQ-5D questionnaire was used in the second step to calculate the QALY, and the cost collection form was used to calculate the direct medical cost. The data were analyzed through a decision tree, and Stata and Tree age pro softwares were the analysis tools. Also, according to the per capita GDP index for Iran in 2018, the incremental cost-effectiveness threshold was considered to be $10,000.

Results

The results of this study showed that during the prophylaxis period, rivaroxaban was one and a half times less costly than enoxaparin. Quality of life in uncomplicated conditions were 0.85 QALY for rivaroxaban and 0.69 QALY for enoxaparin. Based on the results of this study, the cost of rivaroxaban during the prophylaxis was $ 160.97 and the quality of life was 0.85 QALY and the cost of enoxaparin was $ 276.07 and the quality of life was 0.69 QALY. The cost difference between the two interventions was $ 115.09 and the outcome difference was 0.16 QALY. The incremental cost-effectiveness ratio was $ 189.40 for rivaroxaban and $ 416.28 for enoxaparin. According to the results of this study, rivaroxaban reduced the duration of hospitalization by an average of 2 days in asymptomatic patients (prophylaxis period) compared to enoxaparin.

Conclusion

Rivaroxaban, an oral medication, reduced costs and increased the quality of life in people undergoing knee replacement surgery compared with an enoxaparin injection vial. This drug was less costly for the patient and health systems and its use was cost-effective as a thromboprophylaxis drug following knee replacement surgery.

Modeling the diagnosis of coronary artery disease by discriminant analysis and logistic regression: a cross-sectional study

PURPOSE

Coronary artery disease (CAD) is one of the most significant cardiovascular diseases that requires accurate angiography to diagnose. Angiography is an invasive approach involving risks like death, heart attack, and stroke. An appropriate alternative for diagnosis of the disease is to use statistical or data mining methods. The purpose of the study was to predict CAD by using discriminant analysis and compared with the logistic regression.

MATERIALS AND METHODS

This cross-sectional study included 758 cases admitted to Fatemeh Zahra Teaching Hospital (Sari, Iran) for examination and coronary angiography for evaluation of CAD in 2019. A logistics discriminant, Quadratic Discriminant Analysis (QDA) and Linear Discriminant Analysis (LDA) model and K-Nearest Neighbor (KNN) were fitted for prognosis of CAD with the help of clinical and laboratory information of patients.

RESULTS

Out of the 758 examined cases, 250 (32.98%) cases were non-CAD and 508 (67.22%) were diagnosed with CAD disease. The results indicated that the indices of accuracy, sensitivity, specificity and area under the ROC curve (AUC) in the linear discriminant analysis (LDA) were 78.6, 81.3, 71.3, and 81.9%, respectively. The results obtained by the quadratic discriminant analysis were respectively 64.6, 88.2, 47.9, and 81%. The values of the metrics in K-nearest neighbor method were 74, 77.5, 63.7, and 82%, respectively. Finally, the logistic regression reached 77, 87.6, 55.6, and 82%, respectively for the evaluation metrics.

CONCLUSIONS

The LDA method is superior to the Quadratic Discriminant Analysis (QDA), K-Nearest Neighbor (KNN) and Logistic Regression (LR) methods in differentiating CAD patients. Therefore, in addition to common non-invasive diagnostic methods, LDA technique is recommended as a predictive model with acceptable accuracy, sensitivity, and specificity for the diagnosis of CAD. However, given that the differences between the models are small, it is recommended to use each model to predict CAD disease.

Effect of media messages on health-promoting lifestyle of acute coronary syndrome patients: A randomized clinical trial

BACKGROUND

Patient education is a key factor in promoting the health of people with acute coronary syndrome (ACS), and the effective use of technology can play an important role in this regard. This study aimed to determine the effectiveness of education using media messages on the lifestyle of patients with ACS.

MATERIALS AND METHODS

The present clinical trial was conducted on 91 cases with ACS admitted to the cardiac ward of Afshar Hospital in Yazd, Iran, during 2018-2019, who were randomly assigned to control and intervention groups. The former only was provided with routine training before discharge, while the latter, in addition to routine training before discharge, received education on social networking and sending text/visual messages. At baseline and 3 months after the intervention, the Walker's Lifestyle Questionnaire was completed. The independent t-test, paired t-test, and Chi-square test were employed for data analysis.

RESULTS

The average lifestyle value of the intervention group was significantly higher compared with the control group after the intervention (P < 0.001). Moreover, the lifestyle score was significantly different pre- and post-intervention in the intervention group (P < 0.001).

CONCLUSIONS

Education using media messages is useful to promote the lifestyle in cases with ACS, which seems effective in planning the follow-up for these patients.

The cost-effectiveness of B-type natriuretic peptide-guided care in compared to standard clinical assessment in outpatients with heart failure in Tehran, Iran

BACKGROUND

B-type natriuretic peptide (BNP) is commonly used as a diagnostic method for patients with heart failure. This study was designed to evaluate the cost-effectiveness of BNP compared to standard clinical assessment in outpatients with heart failure with reduced ejection fraction (HFrEF) in Tehran, Iran.

METHODS

This study was a cost-effectiveness analysis carried on 400 HFrEF outpatients > 45 years who were admitted to Rasoul Akram General Hospital of Tehran, Iran. A Markov model with a lifetime horizon was developed to evaluate economic and clinical outcomes for BNP and standard clinical assessment. Quality-adjusted life-years (QALYs), direct, and indirect costs collected from the patients.

RESULTS

The results of this study indicated that mean QALYs and cost were estimated to be 2.18 QALYs and $1835 for BNP and 2.07 and $2376 for standard clinical assessment, respectively. In terms of reducing costs and increasing QALYs, BNP was dominant compared to standard clinical assessment. Also, BNP had an 85% probability of being cost-effective versus standard clinical assessment if the willingness to pay threshold is higher than $20,800/QALY gained.

CONCLUSION

Based on the results of the present study, measuring BNP levels represents good value for money, decreasing costs and increasing QALYs compared to standard clinical assessment. It is suggested that the costs of the BNP test be covered by insurance in Iran. The result of the current study has important implications for policymakers in developing clinical guidelines for the diagnosis of heart failure.

Dietary supplements consumption and its association with socioeconomic factors, obesity and main non-communicable chronic diseases in the north of Iran: the PERSIAN Guilan Cohort Study (PGCS)

BACKGROUND

Dietary supplements (DSs) use have become a growing trend worldwide, and it may be affected by demographic and sociocultural factors. Some people use supplements with the thought that they can improve their health, reduce symptoms and prevent disease. The aim of the present study was to define the frequency of DS use and its association with socioeconomic factors among participants with selected main non-communicable chronic diseases (NCDs) (diabetes, cardiovascular disease (CVD), hypertension (HTN), cancers, and obesity in the north of Iran.

METHODS

This large cross-sectional study was conducted as a part of the PERSIAN Guilan cohort study. Supplement use during last year and its type, demographic factors, socioeconomic status, lifestyle habits were asked by face-to-face interview. The history of chronic disease was defined by a trained team. Data were analyzed using SPSS. The chance of supplement use according to demographic, socioeconomic, and lifestyle variables and history of chronic disease was analyzed by logistic regression.

RESULTS

10,520 men and women aged 35-70 years in Some'e Sara County (including urban regions and 39 villages) were studied. About 25% of participants consumed DSs. The highest consumption of DS was calcium/vitamin D (11.1%), ferrous sulfate (8.8%), and vitamin D pearl or ampoule (7.7%). The highest percent of the history of chronic disease was central obesity (62.7%), HTN (43.2%), and general obesity (32.7), respectively. After adjustment for confounders, those with female gender, the highest age ranges (55-65 and > 65 years), high academic education, living in urban regions, and good economic status were more likely to be DSs consumers; however, married and smoker subjects were more likely to consume DS. Participants who had a history of diabetes, HTN, CVD, Obesity, and Central Obesity were more likely to intake DS in comparison with healthy subjects.

CONCLUSION

This study showed that a quarter of the participants were DS users. Female sex, older age groups, and higher educated participants, and among chronic disease, patients with HTN, CVD, and diabetes were more likely to be users of any DS.

Risk factors for premature coronary artery disease (PCAD) in adults: a systematic review protocol

PCAD possesses a public health challenge resulting in years of productive life lost and an escalating burden on health systems. Objective of this review is to compare modifiable and non-modifiable risk factors for PCAD compared to those without PCAD. This review will include all comparative observational studies conducted in adults aged >18 years with confirmed diagnosis of PCAD (on angiography) compared to those without PCAD. Databases to be searched include; PubMed, CINAHL, Embase, Web of Science, and grey literature (Google Scholar). All identified studies will be screened for title and abstract and full-text against the inclusion criteria on Covidence software. Data relevant to exposures and outcomes will be extracted from all included studies. All studies selected for data extraction will be critically appraised for methodological quality. Meta-analysis using random-effects model will be performed using Review Manager 5.3. Effect sizes for categorical risk factors will be expressed as odds ratios with 95% confidence intervals. For risk factors measured in continuous form, mean difference (if units are consistent) otherwise standardized mean difference (if units are different across studies) will be reported. Heterogeneity between studies will be assessed using I 2 test statistics. GRADE will be used to assess the certainty of the findings. Systematic review registration number:PROSPERO Registration # CRD42020173216.

MicroRNA-copy number variations in coronary artery disease patients with or without type 2 diabetes mellitus

BACKGROUND

An important cause of Coronary Artery Disease (CAD) is Type 2 Diabetes Mellitus (T2DM). The aim of this study was the evaluation of copy number variations (CNVs) of hsa-miR-93, hsa-miR-122, hsa-miR-192 in CAD patients with or without T2DM.

METHODS

CNVs of three micro-RNAs in 50 CAD patients and 50 non-CAD subjects both with and without diabetes were evaluated by real-time PCR and compared in three comparison groups namely 1, 2 and 3 (including comparison between CAD and non-CAD, diabetic CAD and non-diabetic CAD and between diabetic CAD and diabetic non-CAD subjects, respectively).

RESULTS

There were significant differences in CNVs of hsa-miR-93 between cases and controls in comparison groups 1 and 3 (p = .0310 and .0232, respectively), for hsa-miR-122 in all comparison groups, and for hsa-miR-192 in comparison group 3 (p = .0181).

CONCLUSION

We showed the association of these microRNA-CNVs with CAD, T2DM or both simultaneously.

Predictive value of women's weight trajectories in determining familial cardiovascular disorders: a family-based longitudinal study

Considering the dynamic nature of body mass index (BMI) and its importance in determining cardiovascular risks, this study aimed to investigate the life-course trajectory pattern of women’s BMI and its association with cardiovascular risk factors. A total of 1356 couples with 2976 children were recruited and followed up for an average period of 20 years. Latent growth curve modeling was applied to determine women's BMI trajectories; logistic regression was used to investigate the associations between trajectory patterns and cardiovascular risk factors, including hypertension (HTN), dyslipidemia, diabetes mellitus (DM), and obesity. Women were classified into three trajectories, including normal, stage 1 obesity, and stage 2 obesity. Compared to women’s in the normal trajectory group, those in obesity trajectories had higher odds ratios for HTN, DM, and dyslipidemia. Men with obese spouses showed a higher rate of HTN 1.54 (95% CI 1.05–2.25) and DM 1.55; (95% CI 1.00–2.44). The odds of men’s obesity were higher in obese spouses (OR 1.70; 95% CI 1.10–2.62). Offspring of stage 2 obese (OR 2.39; 95% CI 1.67–3.44) and stage 1 obese (OR 4.81; 95% CI 3.16–7.34) mothers were more likely to be obese. Our findings emphasized paying more attention to women with excessive weight to promote familial cardiovascular health in the communities.

The Interaction Between Fatty Acid Desaturase-2 (FADS2) rs174583 Genetic Variant and Dietary Quality Indices (DASH and MDS) Constructs Different Metabolic Phenotypes Among Obese Individuals

Background and Aim: Genetic variation in fatty acid desaturases (FADS) has previously been linked to several diet-related diseases. We aimed to determine whether the FADS2 rs174583 variant interacts with the Dietary Approach to Stop Hypertension (DASH) score and Mediterranean dietary score (MDS) to influence cardio-metabolic risk factors among obese adults. Methods: This cross-sectional study was performed among 347 apparently healthy obese adults (aged 20-50 years). Dietary quality indicator scores (DASH and MDS) were generated using a validated 147-item Food Frequency Questionnaire (FFQ). The FADS2 rs174583 variant was genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The gene-diet interaction was analyzed by the ANCOVA multivariate interaction model. Results: A significant interaction was observed between rs174583 and adherence to the DASH score in relation to serum triglyceride (TG) concentration among the female group (P Interaction = 0.046); CT-genotype carriers who were assigned to the second tertile of DASH compared with those in the first tertile had a lower TG level (P < 0.05). Another significant interaction was revealed between adherence to MDS score and rs174583 polymorphism on serum glucose levels (P Interaction = 0.044); the lowest mean of glucose level was observed in homozygous minor subjects (TT) in the third tertile of MDS, in comparison with other tertiles of this dietary index (P < 0.05). There was a similar significant interaction between DASH and rs174583 in relation to diastolic blood pressure (P Interaction = 0.038) among the male group. Additionally, a significant positive association was found between TT genotype and odds of having high TG both in the crude (OR, 3.21; 95% CI, 1.02-10.14) and adjusted (OR, 3.58; 95% CI, 1.07-11.97) models, taking into account different confounders. Conclusion: Adherence to the dietary quality indicators (DASH and MDS) modified the relationship between FADS2 rs174583 polymorphism and cardio-metabolic risk factors in obese subjects. Prospective cohort studies are needed to confirm the results of our study.

Dyslipidemia and its associated factors in southern Iranian women, Bandare-Kong Cohort study, a cross-sectional survey

Dyslipidemia, a major risk factor for cardiovascular diseases, has become a global issue. Due to the variations in the prevalence of dyslipidemia, this study aimed to evaluate dyslipidemia and its associated factors in women of the Bandare-Kong Cohort Study (BKNCD). This study was conducted on women from the population-based BKNCD, as part of the Prospective Epidemiological Research Studies in IrAN (PERSIAN). Sociodemographic data, medical history, and anthropometric indices were collected. Dyslipidemia was defined as any lipid abnormality including low-density lipoprotein (LDL) ≥ 160, total cholesterol (TC) ≥ 240, high-density lipoprotein (HDL) < 40, or triglyceride > 200 mg/dl. From the 2223 women in this study (mean age: 48.28 ± 9.26 years), dyslipidemia was observed in 851 (38.3%). High TC was the most common lipid abnormality (18.5%) followed by high LDL (17.7%). Dyslipidemia was most prevalent among women aged 55-70 years, the married, those with < 6 years of education, the unemployed, the overweight or obese, with low socioeconomic status, diabetes, hypertension, and high waist circumference, those using the hookah and living in urban areas. Logistic regression revealed that women with high waist-to-hip ratio (WHR) (OR = 2.22, 95% CI 1.60-3.08), those aged 45-54 years (OR = 1.34, 95% CI 1.07-1.68) and 55-70 years (OR = 1.33, 95% CI 1.03-1.72), and those living in urban areas (OR = 1.35, 95% CI 1.05-1.73) were at significantly increased risk of dyslipidemia. In addition, the results were confirmed using deep neural network models. Dyslipidemia was highly prevalent in Iranian women in the southern coastal region. Central obesity, age over 45 years, and living in urban areas appear to be relatively significant risk factors for dyslipidemia among women.

The Effect of Individual and Group Education Done by Nurses on Smoking Dependency and Smoking Cessation Motivation in Patients with Coronary Artery Disease

Background

This study was carried out to reveal the effect of individual and group education done by a nurse on smoking dependency and smoking cessation motivation in patients with coronary artery disease (CAD).

Methods

The present randomized controlled trial study was conducted in Iran. A total of 255 patients were randomly divided into three groups: 1) individual education, 2) group education, and 3) control. Data were collected using the Fagerstrom Test of Nicotine Dependence (FTND) and Smoking Cessation Motivation Questionnaire (Q-MAT) one time before the intervention and two times after intervention (1^st and 3^rd months).

Findings

The mean scores of motivation for smoking cessation and smoking dependency in patients in the individual and group education were significantly better than the control group after the intervention (1^st and 3^rd months) (P < 0.05). Although there was no significant difference in the mean scores of smoking cessation motivation and smoking dependency in patients in the individual education and group education groups after education, the status of the patients in the group education was slightly better.

Conclusion

Education by nurses might have a significant impact on smoking cessation motivation and smoking dependency in patients with CAD. Further studies are recommended.

Comparison of the effectiveness of position change for patients with pain and vascular complications after transfemoral coronary angiography: a randomized clinical trial

BACKGROUND

Prolonged immobilization after transfemoral coronary angiography (TFA) may cause pain and vascular complications in patients. This study aimed to evaluate the effectiveness of a change in position to decrease pain and vascular complications for patients after TFA.

METHODS

This randomized clinical trial was conducted in 2020. Purposive sampling of 72 eligible patients undergoing TFA were selected and randomly assigned to either an experimental or control group. Patients in the experimental group (EG) were placed in a supine position for 2 h after angiography, followed by a semi-seated position with the bed angle gradually increased to 45° over 4 h. Patients in the control group (CG) remained in the supine position for 6 h. Vital signs, groin, back and leg pain, hematoma, hemorrhage, and urinary retention were assessed in both groups before, immediately after, and over 6 h after angiography. The Visual Analogue Scale was used to measure pain, the Christensen scale to measure hematoma, counting bloody gases to measure hemorrhage, and patient self-rating to determine urinary retention.

RESULTS

There was no significant difference between EG and CG on score of groin (2.69 ± 1.00 vs. 2.61 ± 1.00, P = 0.74), back (2.19 ± 0.98 vs. 2.47 ± 0.87, P = 0.21), and leg pain (2.14 ± 0.71 vs. 2.50 ± 1.08, P = 0.27) before the TFA. However, from the second hour to the sixth hour after the TFA, the pain in the EG was significantly less than the CG (P < 0.001). So that pain in the groin (1.36 ± 0.48 vs. 3.28 ± 0.81), back (1.25 ± 0.50 vs. 3.81 ± 1.06), and leg (1.44 ± 0.55 vs. 3.28 ± 0.81) for the EG patients was significantly less than the CG in the sixth hour after TFA (P < 0.001). No patients experienced hematoma. No differences were noted between groups in hemorrhage and urinary retention.

CONCLUSIONS

Position change to a semi-seated position in patients after TFA is effective and safe for reduction of pain without increasing vascular complications.

TRIAL REGISTRATION

Iranian Registry of Clinical Trials: IRCT registration number: IRCT20200410047011N1, Registration date: 30/04/2020.

The association between dietary pattern and coronary artery disease: A case-control study

Introduction: Dietary patterns are an important factors in the progress of cardiovascular disease. This study aimed to assess the association between dietary patterns and coronary artery disease (CAD).

Methods: A case-control study was carried on 550 participants. Food expenditure was collected using a validated 168-item food-frequency questionnaire. Dietary patterns were extracted by principal component analysis (PCA). Multiple logistic regressions was used to assess the association between dietary patterns and the risk of CAD.

Results: Three major dietary patterns were identified: the "Quasi-Western Pattern" was characterized by higher intakes of sweets and desserts, snacks, legumes, honey or jam, ketchup, mayonnaise, yellow vegetables, potatoes, red meat, refined grains; the "Sugar and Fast foods Pattern" was characterized by higher intakes of sugar, soft drinks, fast foods, high-fat dairy, hydrogenated fats, and the "Quasi-Mediterranean Pattern" was characterized by higher intakes of fruits, cruciferous vegetables, green leafy vegetables, other vegetables, nuts, coffee. In both sexes, the "Quasi-Western Pattern" and the "Sugar and Fast foods Pattern" were positively associated with the risk of CAD. For "Quasi-Western Pattern", adjusted-ORs were (OR: 1.35, 95% CI: 0.99-1.83, P = 0.05) and (OR: 1.38, 95% CI: 1.03-1.83, P = 0.03)for men and women respectively. The ORs were for "Sugar and Fast foods Pattern" (OR: 3.64, 95% CI:2.25-5.89, P < 0.001) and (OR: 3.91, 95% CI: 2.42-6.63, P < 0.001) for men and women respectively.There was a significant inverse relationship among "Quasi-Mediterranean pattern" and CAD in the crude model in women (OR: 0.7, 95% CI: 0.55-0.89, P = 0.0.004).

Conclusion: High adherence to the "Quasi-Western Pattern" and "Sugar-Fast foods Pattern" dietary patterns were associated with a higher risk of CAD. The "Quasi-Mediterranean pattern" reduced the risk of CAD.

Interleukin-17 is Not Associated with Risk of Premature Coronary Artery Disease in Iranian Turks

Cardiovascular diseases are one of the most important causes of death globally. Results of recent studies have indicated that cytokine dysregulation was associated with premature coronary artery disease (P-CAD). The majority of cytokine gene polymorphisms influence the level of cytokine production and secretion. This study aimed to analyse IL-17 gene expression in patients with P-CAD and healty individuals in an Iranian population. This case-control study, conducted in Urmia University of Medical Sciences, compared patients with P-CAD hospitalised for risk of coronary artery stenosis, those admitted for medical cares and healthy normal controls. Thirty patients with P-CAD and 30 healthy individuals entered the study. The tested individulas were selected according to strict criteria such as clinical, echocardiogram, electrocardiogram and coronary angiography findings. Individuals with diabetes type 1 or 2 were excluded from the study. Reducing the diameter of at least one of the coronary arteries with more than 50% obstruction was selected as P-CAD. The qRT-PCR technique was used to determine the level of IL-17 gene expression in the studied groups. IL-17 gene expression was compared between the tested groups using t-test or Mann-Whitney U-test. Subjects' mean age (±SE) was 45(±5) and 44 (±4) among tested cases and related controls, respectively. The relative mRNA expression was 4.04±2.4 in patients with P-CAD and 2.75±1.3 in controls for IL-17. IL-17 gene expression was not significantly different in the tested groups (P> 0.05). IL-17 is not associated with risk of P-CAD in Iranian Turks.

Comparison home care service hospital-based care ulcer economic evaluation study

Introduction

Providing health care to patients at home could be causing the mortality and readmission rates reduction in addition to satisfaction of both patients and health care providers increase. The aim of this study was to assess the cost-effectiveness of home care service compared to hospital based care in patients with diabetic foot ulcer.

Methods

An economic evaluation study and a trial study were simultaneously conducted in Iran. In trial phase, patients with diabetic foot ulcer were randomly assigned to the home care or hospital care. The Cost and Quality of life data were determined as measures of the study. Incremental cost-effectiveness ratio was calculated for comparative purposes. The model consisted of five stages of the disease. The Tree Age Pro 2009 and R software's were used for data analysis.

Results

120 patients were enrolled in our trial; among which 30 patients were in home care service group and 90 patients in hospital based care group. The rate of ulcer size reduction in hospital based care was significant (P value = 0.003) in comparison with home care service. The total cost of the home care and hospital strategies were 1720.4 US$, 3940.3 US$ and the total effectiveness were 0.31 and 0.29, respectively. The incremental cost-effectiveness ratio (ICER) was 117,300 US$ per quality-adjusted life year for home care intervention compared to hospital based care. Based on ICER plane home care treatment will be placed on the southeastern quadrant of the Cost-Effectiveness Plane, and is suggested as a more dominant treatment alternative.

Conclusions

Regarding current evidence, home care strategy for patients suffering diabetic foot ulcer enjoys more cost effectiveness compared to hospital care. It is suggested that healthcare policy makers determine the tariff for health care services for disease groups according to the activity based costing approach.

Socioeconomic status, cardiac risk factors, and cardiovascular disease: A novel approach to determination of this association

BACKGROUND

Socioeconomic inequality is one of the important issues in cardiovascular diseases (CVDs). The aim of this study was to investigate the distribution and relation between selected cardiac risk factors, type of CVD, and the socioeconomic status (SES) in the hospitalized patients with heart disease in Isfahan, Iran.

METHODS

This analytical and cross-sectional study was conducted in Isfahan in 2013. The population consisted of all patients with CVD admitted to the public and private hospitals. The sample size was 721. Data collection was conducted through one researcher-made questionnaire with three sections: demographic, disease, and SES questionnaires. To determine the SES of the patients, the indicators of income, housing status, occupation, family size, and education were used. Data analysis was conducted in two statistical levels of descriptive and inferential.

RESULTS

69.1% of the patients were placed in the poor status, and there was no wealthy status within the subjects. The five most frequent CVDs were chronic ischemia, unstable angina, arrhythmia, congestive heart failure (CHF), and acute myocardial infarction (MI), respectively. The three highest frequent risk factors in the patients were hypertension (HTN) (47.2%), diabetes (33.6%), and hyperlipidemia (32.6%). Regression analysis of the risk factors and the type of heart disease on the SES revealed that there were statistically significant differences between patients who were smokers (P = 0.030) and those who had valve disease (P = 0.010), adjusted for age, gender, and marital status.

CONCLUSION

Our findings showed that the frequency of CVD risk factors were higher in lower SES groups and thus SES can be a strong predictor for the occurrence of the CVD risk factors as well as the CVDs.

An Empirical Study on the Effect of Short-Term Regular Vitamin D3 Supplement Therapy on Blood Pressure and Exercise Tolerance in Heart Failure Patients

The receptor of vitamin D is expressed in almost all body cells, including vascular endothelial cells and cardiomyocytes. Vitamin D deficiency has been observed widespread amongst heart failure (HF) patients, which could have harmful effects on their health condition. This study aims to investigate the effect of vitamin D supplements on blood pressure (BP) and physical activity of HF patients. Thirty-nine systolic HF patients with low ejection fraction (EF) < 50% and class III of New York Heart Association functional classification were randomly divided into 2 groups including intervention and placebo to enroll in an 8 weeks double-blind clinical trial. During the trial 6-minute walk test (6MWT), 25-hydroxyvitamin D (25[OH]D) level, BP, sodium and potassium intakes were assessed. The mean 25(OH)D level increased to 28.9 ± 11.7 ng/mL (p < 0.001) in the intervention group. There was a poor but non-significant reduction in systolic BP (-0.033 ± 4.71 mmHg, p = 0.531) in the intervention group. The BP also did not change in the placebo group at the end of the trial. A negligible decrease of 6MWT was observed in the intervention group (-6.6 ± 29.2 m) compared to the placebo (-14.1 ± 40.5 m). However, differences between the 2 groups were not statistically significant (p = 0.325). The results solely showed a slight positive correlation between 25(OH)D level and 6MWT. No significant improvements in BP and 6MWT were observed after vitamin D3 supplementation.

TRIAL REGISTRATION

Iranian Registry of Clinical Trials Identifier: IRCT2016102113678N13.

Medicinal plants’ use among patients with dyslipidemia: an Iranian cross-sectional survey

Background

Despite growing demand for medicinal plants, there is little data about their use by patients with dyslipidemia. We aimed to determine the prevalence, pattern, and associated factors for the use of medicinal plants among patients with dyslipidemia.

Methods

A 17-item semi-structured questionnaire was filled out by 195 patients with dyslipidemia in a cross-sectional study carried out in two academic endocrinology clinics in Shiraz, Iran. The questionnaire comprised of three main domains of demographic data (6 questions), clinical data (2 of them), and data related to the use of medicinal plants (totally 9 questions).

Results

A total of 77.4% of patients took medicinal plants. The most common medicinal herbs used by dyslipidemic patients were Zataria multiflora, Cinnamomum zeylanicum, and Zingiber officinale. Duration of dyslipidemia was significantly longer in herbal users than non-herbal users (p=0.04). Patients believing that concomitant use of conventional drugs and herbal preparations had synergic positive effects in addition to those persuaded that herbal preparations possessed less side effects, were significantly more likely to use medicinal plants (p=0.008 and 0.005, respectively). Additionally, most of the medicinal herb users (87.4%) changed neither the pattern nor the dosage of their medications all during herbal preparations use.

Conclusions

This study demonstrated a high prevalence of medicinal plants’ use among patients with dyslipidemia, which was associated with the duration of dyslipidemia, patients’ viewpoints about herbal preparations’ synergic positive effects, and their fewer side effects.

Efficacy of Neurocognitive Rehabilitation After Coronary Artery Bypass Graft Surgery in Improving Quality of Life: An Interventional Trial

Introduction

Cognitive deficits are frequent after coronary artery bypass graft (CABG) surgery and consequently could lead to a decrease in quality of life. This is the first study that has been conducted with the aim of examining the efficacy of a computerized cognitive rehabilitation therapy (CCRT) in improving quality of life in patients after CABG surgery.

Methods

In this study, an interventional trial with pre-, post-, and follow-up assessments in active (CCRT), active control and control groups was conducted. Seventy-five patients after CABG surgery were selected and assigned to the groups (n = 25 for each group). CCRT consists of four modules of attention, working memory, response inhibition and processing speed training with graded schedule in 20-min sessions three times per week within 8 weeks. Cognitive functions (attention and working memory) were assessed by the tests of continuous performance, Flanker, useful field of view and digit span at three time points: pre- and post-intervention (T0 and T1) and 6-month follow-up (T2). Quality of life was assessed by the SF-36 questionnaire at the same time points. The CCRT group received the cognitive rehabilitation for 2 months, active control group received a sham version of CCRT in an equal time duration and control group did not receive any cognitive intervention.

Results

Repeated measures analysis of variance (ANOVA) revealed a time by group interaction on cognitive functions, with CCRT producing a significant improvement at T1 (p < 0.01) and these improvements were maintained at T2. Moreover, in CCRT and active control groups, quality of life (QoL) improved at T1 and these improvements remained stable throughout follow-up (T2). However, improvement of QoL in CCRT group was greater than improvement of QoL in the other two groups at T1. Pearson’s correlation analysis shows a positive correlation between QoL improvement and sustained attention and working memory enhancement (p < 0.05).

Conclusion

Cognitive rehabilitation can lead to a significant improvement in the cognitive functions that have been trained in patients receiving CABG. Interestingly enough, cognitive rehabilitation can also improve quality of life in patients after CABG surgery and this improvement is maintained for at least 6 months.

Risk factors of premature coronary artery disease in Iran: A systematic review and meta-analysis

BACKGROUND

The aim of this study was to determine the mean age at which coronary artery disease (CAD) hase decreased in recent years in Iran. This systematic review and meta-analysis compares the prevalence of different risk factors of premature CAD (PCAD) in patients vs healthy individuals.

METHODS

Medline, Web of Science, Embase and Scientific Information Database were searched for studies about PCAD risk factors in Iran until 28 October 2017. Observational studies of Iranians, comparing risk factors between patients with PCAD and age- and sex-matched healthy subjects, were included. Fixed-effects and random-effects model were used for pooling data. Odds ratio (OR) with 95% CI and mean difference were used for effect size estimation among studies.

RESULTS

Twelve studies were eligible for meta-analysis. Diabetes mellitus (OR: 2.4, 95% CI: 1.9-3.03; P = 0.0001, I²  = 25.5%; P = 0.2), family history of CAD (OR: 2.09, 95% CI: 1.22-3.6; P = 0.007, I²  = 86%; P = 0.0001), dyslipidaemia (OR: 2.05, 95% CI: 1.15-3.64; P = 0.01, I²  = 54%; P = 0.08), smoking (OR: 1.65, 95% CI: 1.11-2.46; P = 0.01, I²  = 77.2%; P = 0.000) and hypertension (OR: 1.35, 95% CI: 1.21 to-1.50; P < 0.001, I²  = 31%, P = 0.1) associated with PCAD. Sensitivity analysis demonstrated that patients with PCAD had significantly lower levels of high-density lipoprotein (HDL) cholesterol and significantly higher levels of triglycerides compared to healthy subjects (MD: -2.56, 95% CI: -3.54 to -1.58, P < 0.001, I²  = 42%, P = 0.01 and MD: 21.17, 95% CI: 14.73-27.62, P < 0.001, I²  = 80.12%, P < 0.001, respectively). It should be noted that although high levels of heterogeneity in LDL and HDL values among the studies were observed, when dyslipidaemia was studied as a binary variable, no significant heterogeneity among studies was observed.

CONCLUSION

Diabetes mellitus, family history of CAD, dyslipidaemia, smoking, and hypertension were significantly and positively associated with CAD in young adults compared to healthy age- and sex-matched population in Iran.

Barriers to participation in center-based cardiac rehabilitation programs and patients' attitude toward home-based cardiac rehabilitation programs

Purpose: The mortality rate of cardiovascular diseases in such developing countries as Iran is on the rise. Despite sufficient evidence pointing to its efficacy, cardiac rehabilitation (CR) approach is only employed to a limited extent. In the present study, barriers to participation in center-based cardiac rehabilitation programs and patients' attitude toward home-based cardiac rehabilitation model were examined. Methods: In this study, 204 eligible patients for CR visiting an academic hospital were examined during the first three months of 2017. Patients had either abandoned rehabilitation programs midway through or had not attended one in the first place. Data about perceived barriers were collected using the modified Cardiac Rehabilitation Barriers Scale. Also, Patients' attitude toward home-based CR was collected using a pre-validated researcher-made questionnaire. Results: The results revealed that the most effective barriers were transportation problems (70%), travel costs (70%), considerable distance to the rehabilitation center (67%), and lack of insurance coverage for rehabilitation costs (64%), respectively. Patients with longer than 30-minute drive time were less likely to attend in training sessions in the center. In addition, the important patient expectations about home-based CR programs included: communication with specialists, training before entering the rehabilitation program, and making periodic visits to maintain motivation and adhere to the home-based CR programs. Conclusions: The results revealed that logistical factors were the major barriers to participation in rehabilitation programs. Alternative models such as home-based CR programs, positively evaluated by the participants, can be used to overcome these barriers.

Hypertension and Pre-Hypertension Among Iranian Adults Population: a Meta-Analysis of Prevalence, Awareness, Treatment, and Control

PURPOSE OF REVIEW

This meta-analysis and systematic review was conducted to evaluate hypertension and prehypertension prevalence, awareness, treatment, and control in Iranian adults population.

RECENT FINDINGS

In this study, six international and national databases were searched from inception until August 30, 2018. Forty-eight studies performed on 417,392 participants were included in the meta-analysis. Based on the results of random effect method (95% CI), the overall prevalence of pre-hypertension, hypertension, awareness, treatment, and control were 31.6% (95% CI 24.9, 38.3; I2 = 99.7%), 20.4% (95% CI 16.5, 24.4; I2 = 99.9%), 49.3% (95% CI 44.8, 53.8; I2 = 98.5%), 44.8% (95% CI 28.3, 61.2; I2 = 99.9%), 37.4% (95% CI 29.0, 45.8; I2 = 99.3%), respectively. Considering the increasing prevalence of pre-hypertension, hypertension, as well as more than half of the participants were unaware of their disease and were not treated, the results of the present study can help policy-makers to increase hypertension awareness, control, and treatment, especially in high-risk individuals.

Analysing cardiovascular risk factors and related outcomes in a middle-aged to older adults population in Iran: a cohort protocol of the Shiraz Heart Study (SHS)

INTRODUCTION

The significant increase in the rate of morbidity and mortality due to cardiovascular diseases has become a health challenge globally. Lack of enough knowledge on the underlying causes in Iran and taking the unique characteristics of the Shiraz metropolitan city (the capital city of Fars Province) into consideration prompted us to conduct the Shiraz Heart Study. The aim of this study is to determine the predisposing elements leading to coronary heart disease, cerebrovascular disease and peripheral arterial disease.

METHODS AND ANALYSIS

In this population-based, prospective study, family physician clinics will become the executive arms. Participants aged 40-70 years old will be recruited to achieve a sample size of 10 000. Socioeconomicta and anthropometric indices supplemented by physical activity, nutritional and psychological questionnaires, as well as routine blood laboratory tests, medical history and electrocardiographic records, will be collected at enrolment in clinics. In addition, blood samples will be obtained to explore the possible role of genetics in outcome occurrence. Follow-up with blood sampling, completion of a lifestyle questionnaire and evaluation of clinical risk factors will be carried out five times in a 2-year interval for all participants. Advanced statistical methods such as mixed model and time-to-event models will be used for data analysis.

ETHICS AND DISSEMINATION

This study is in accordance with the Helsinki Declaration and has been approved by the Research Ethics Committee of Shiraz University of Medical Sciences (No: 2017-358). Signing a written informed consent is the preliminary step. Participants are free to withdraw on their request at any time. Collected data are kept encrypted in a software with authorities' access only. Findings of the study will be published at a national or international scale through peer-reviewed journals.

There is an association between a genetic polymorphism in the ZNF259 gene involved in lipid metabolism and coronary artery disease

BACKGROUND

Recent genome-wide association studies (GWAS) have identified several genetic variants that influence the risk of dyslipidemia and coronary artery disease (CAD). In this study, we have examined the potential association of five SNPs variants related to lipid pathway, previously identified in GWAS studies (ZNF259 C>G, CETP I405VA/G, LPA C>T, LPLS447X and PSRC1 A>G) with CAD.

METHODS

Two hundred and ninety subjects including 194 patients with coronary artery disease and 96 controls were enrolled, followed by the analyses of anthropometric/biochemical parameters. Genotyping was carried out using Taq-Man real-time PCR based method. The association of the genetic polymorphisms with CAD was determined using univariate and multivariate analyses.

RESULTS

CAD patients had a higher (p < 0.05) fasting blood glucose (FBG), total cholesterol (TC), high sensitivity C-reactive protein (hs-CRP), low-density lipoprotein cholesterol (LDL-C) and waist circumference. Results showed that subjects with CETP rs5882 genetic variant, AA&AG genotypes, had a higher risk of developing Coronary artery disease [OR: 2.1, 95% CI (1.2-4.1), p value = 0.015]. Also subjects who carried the G allele of the ZNF259 polymorphism were at an increased the risk of developing CAD [OR 1.86, 95% CI: 1.06-3.25, p value = 0.029] and had an increased TC, LDL and TG levels (p < 0.05). Furthermore, no statistically significant association was found between genetic polymorphisms of PSRC1 A>G, LPL S447X and LPA C>T and CAD.

CONCLUSION

We identified a relationship between a genetic variant in CETP and ZNF259 gene with CAD and CAD and lipid profile, respectively. Further investigation in a larger population may help to investigate the value of emerging marker as a risk stratification marker in CAD and its risk factors.

Empirically developed dietary inflammatory potential (EDIP) in patients candidate for coronary artery bypass grafting surgery (CABG): Association with metabolic parameters, dietary antioxidant quality score and dietary phytochemical index

AIMS

It has been suggested that empirically developed dietary inflammatory potential (EDIP) is a diagnostic tool for assessment of inflammatory potential of diet in prediction of risk factors related to chronic disease. In the current work, we examined the association between EDIP with cardio-metabolic risk factors, dietary antioxidant quality score (DAQs), dietary phytochemical index (DPI) and Mediterranean dietary quality index (MEDQI) in patients candidate for CABG.

MATERIALS AND METHODS

In the current cross-sectional study, the data obtained from Tehran- Heart Center-Coronary Outcome Measurement (THC-COM) study from 454 patients candidate for the CABG were used. Laboratory measurements including hemoglobin (Hb)-A1C, serum lipids, creatinine, blood urea nitrogen (BUN), hematocrit, Lp(a), telomerase activity, serum vitamin D and c-reactive protein (CRP) were measured with commercial laboratory methods. Dietary indices were measured according to the data obtained from with semi-quantitative FFQ.

RESULTS

In the current work, patients in top quintile of EDIP had higher BMI and higher prevalence of hyperlipidemia compared with patients in lowest quintile (BMI: 28.08 ±3.68 vs 26.69 ± 3.67 and hyperlipidemia: 77.8 vs 65.5%; P < 0.05). Moreover, lower EDIP scores were accompanied with higher vitamin E (0.48 vs 0.4) and total dietary antioxidant scores (4.40 VS 4.28), higher dietary phytochemical scores (69.79 vs 58.29) and lower dietary Mediterranean quality scores (P < 0.05 and P < 0.01 respectively). In male patients, being at highest quintiles of EDIP make patients 2-5% more likely to have higher concentrations of serum cholesterol, BUN and Lp (a), and 6 to 8 times more likely to have higher creatinine and 66% more likely to have lower albumin concentrations compared with male patients in lowest quintiles. In female patients, lower HCT, higher creatinine, higher CRP concentrations and higher telomerase activity were also achieved by higher EDIP scores (P < 0.05).

CONCLUSION

According to our finding, EDIP was associated with obesity, high prevalence of dyslipidemia and cardio-metabolic risk factors. Moreover, EDIP was in an inverse association with dietary antioxidant quality score and dietary phytochemical index. Therefore, EDIP could be assumed as a precise tool for estimating the CVD related risk factors among patients candidate for CABG.

Dietary total antioxidant capacity (TAC) among candidates for coronary artery bypass grafting (CABG) surgery: Emphasis to possible beneficial role of TAC on serum vitamin D

Aims

Recently, the clinical importance of total antioxidant capacity (TAC) and its protective role against several chronic diseases like cardiovascular disease, osteoporosis and several types of cancers has been reported. However, its association with cardio-metabolic risk factors among patients candidate for coronary artery bypass graft surgery (CABG) has not been evaluated yet. CABG is associated with increased oxidative stress and free radicals; so, the current study was aimed to evaluate the potential association of TAC with cardiovascular risk factors among patients candidate for CABG.

Methods and materials

In the current cross-sectional study, 454 patients aged 35–80 years as candidates of CABG and hospitalized in Tehran Heart Center were enrolled. Anthropometric and demographic characteristics were obtained from all participants. Total dietary antioxidant capacity (TAC) was calculated according to the findings of semi-quantitative food-frequency questionnaire (FFQ). Biochemical parameters including serum lipids, albumin, creatinine, HbA1C, C-reactive protein (CRP), lipoprotein (a), creatinine, blood urea nitrogen (BUN) and serum vitamin D concentrations were also assessed by commercial laboratory methods.

Results

Male patients in the top quintiles of TAC had significantly lower prevalence of hypertension (35.1% vs 45.9%). Moreover, male patients at fifth quintile of TAC were 2% more serum vitamin D concentrations, 3% lower serum cholesterol concentrations compared with lowest quintile. Top quintiles of TAC make patients more likely to have low hematocrit and high serum albumin concentrations compared with lowest quintiles (P < 0.05). However, in female participants, only serum creatinine concentration was in negative association with TAC. In comparison of clinical parameters, females in the fifth quintile of TAC had 9% higher EF compared with patients in the first quintile (P = 0.021).

Conclusion

To our findings, higher dietary antioxidant capacity was associated with lower prevalence of hypertension, lower hematocrit, total cholesterol and higher albumin and vitamin D concentrations. Therefore, high dietary TAC could be considered as a potent protective tool against cardio-metabolic risk factors in patients CABG candidate for especially in male patients.

The Cardiac Risk Factors of Coronary Artery Disease and its relationship with Cardiopulmonary resuscitation: A retrospective study

BACKGROUND

Cardiovascular diseases are considered as the most prevalent serious disease in developed countries, and act as the number one cause of death among men and women in all ages and from all races.

AIM

The present research aims at determining the relationship between risk factors of cardiovascular diseases and consequences of cardiopulmonary resuscitation (CPR).

METHODS

The present study is a retrospective analytic-cross sectional research performed on 100 patients in need for CPR (successful and unsuccessful) during March 2017 - June 2017. As research instrument, a pre-designed checklist was used including demographic information, clinical and medical information, and the information related to modifiable and non-modifiable risk factors of cardiovascular diseases.

RESULTS

Obtained results indicated that, 57.1% of the successful CPR cases were administered on men, while 55.1% of unsuccessful CPR cases were administered on women. The patients diagnosed with myocardial infarction were in further need for CPR (rate of successful CPR: 66.7%, and rate of unsuccessful CPR: 61.9%). Significant associations were found between CPR duration, post-CPR survival time (survival time after CPR), systolic blood pressure, diastolic blood pressure, triglyceride level, diabetes, fasting blood sugar level, and body mass index, in one hand, and type of CPR, on the other hand (p < 0.05).

CONCLUSION

Results of the present research showed that, there is a significant relationship between modifiable risk factors of cardiovascular diseases and consequences of CPR.

Health-Promoting Lifestyle among People Without Heart Disease in Isfahan

Background

The present research conducted with aim to determine the health-promoting behaviors (HPBs) of public of Isfahan, and study the associations of HPBs with demographic characteristics.

Methods

In a cross-sectional study conducted on 369 people without heart disease living in Isfahan, HPBs were assessed using a questionnaire which consists of two parts: personal information and Health-Promoting Lifestyle Profile II (HPLP-II). Data were analyzed by t-test and one-way analysis of variance.

Results

The mean score for overall HPLP-II (158.30 ± 19.38) indicated the acceptable level of performing HPBs in Isfahan. Physical activity got the lowest score (16.36 ± 5.13), and the highest score was for interpersonal relations (53.16 ± 5.59). There were significant differences on physical activity and interpersonal relation dimensions between males and females (P < 0.05). The mean score of physical activity was highest in single participants (P < 0.05). Mean score of physical activity for people with college education was greater than others (P < 0.05). Overall HPLP-II and its domains mean scores for people that received education about prevention of cardiovascular disease were greater than others (P < 0.05).

Conclusions

Results showed HPBs in people of Isfahan society is acceptable but physical activity is in the worst condition. The role of physical activity in preventing and controlling cardiovascular disease is well established. Therefore, it seems that providing information about physical activity can lead to an improvement of health-promoting lifestyle.

Reliability and Validity of the 14-point mediterranean diet adherence screener among the Iranian high risk population

INTRODUCTION: The aim of study was to assess the reliability and validity of the14-point Mediterranean Diet Adherence Screener (MEDAS) among Iranian high risk population. METHODS: Study was conducted in north of Iran a country with a Shiite majority with religious constraints, so we modified the MEDAS in the Farsi version. We applied reliability analysis using the Kuder – Richardson 20 and the alpha coefficient of Cronbach, with SPSS to interpret the effects of each item of MEDAS in its internal consistency. RESULTS: After correcting the item scores, coefficients of Kuder-Richardson-20 was calculated 0.559. The mean±SD of 13 items MEDAS was 5.73±1.88. None of Corrected Item-Total Correlation coefficients were negative. 43%, 53% and 4% participants had low, medium and high adherence to a Mediterranean diet respectively. CONCLUSION: In spite of making a few changes in questions, the coefficients of Kuder-Richardson-20 did not decrease in reliability analysis. The MEDAS was translated for the first time into Farsi. Administering this tool in future researches will help to understand how Iranian adhere to the mediterranean diet, aiming at improving cardiovascular health.

Prevalence of Hypercholesterolemia, High LDL, and Low HDL in Iran: A Systematic Review and Meta-Analysis

BACKGROUND

Chronic and abnormal increase of different types of dyslipidemia leads to some important diseases, such as constriction and abstraction of vessels in various parts of the body, especially in the heart. High lipid profile, such as increased total cholesterol and LDL as well as decreased HDL are recognized as cardiovascular disease risk factors. The present study aimed to estimate the prevalence of different types of dyslipidemia in Iran by a meta-analysis method.

METHODS

A literature search for studies published during 1998-2015 was carried out using both Persian and English databases (SID, Magiran, IranMedex, MedLib, PubMed, and Scopus). Keywords such as lipid, dyslipidemia, CVD, cardiovascular risk factors, hypercholesterolemia, high LDL-C, low HDL-C, and prevalence were used in the search. Random-effects model was used for the analysis using STATA (version 11.2).

RESULTS

In total, 163 articles were identified of which 49 articles fulfilled the inclusion criteria. The estimated prevalence (95% confidence interval) of eligible articles for high cholesterol ≥200 mg/dl and ≥240 mg/dl was 42% (95% CI: 38-45) and 17% (95% CI: 14-20), respectively. Moreover, the prevalence (95% confidence interval) for high LDL-C ≥130 mg/dl and ≥160 mg/dl was 40% (95% CI: 32-48) and 19% (95% CI: 16-23), respectively. The pooled prevalence estimate for low HDL-C (<40 among males, <50 among females) was 43% (95% CI: 33-53) in both sexes of the Iranian people. All types of lipid component abnormalities (hypercholesterolemia, high LDL-C, and low HDL-C) were more prevalent in women.

CONCLUSION

The results indicate that the prevalence of different types of dyslipidemia in Iran is substantial. Given the risk of complications (e.g. cardiovascular disease and control of different types of dyslipidemia) in Iranian people, it is important to reduce the burden of cardiovascular diseases.

TP53 single nucleotide polymorphism (rs1042522) in Iranian patients with coronary artery disease

Chronic diseases including coronary artery disease (CAD) impose a high burden in terms of mortality and disability particularly in developing countries. Both genetic and environmental risk factors confer susceptibility to CAD. Meanwhile, a functional polymorphism in the tumor protein p53 (TP53) gene (codon 72, exon 4) has been reported to be associated with a wide range of cancers and inflammatory disorders. There are controversies regarding CAD and involvement of the TP53 codon 72 single nucleotide polymorphism; therefore, the present case-control study was conducted to evaluate the potential association between this TP53 polymorphism and CAD in an Iranian population. A total of 153 subjects (including 70 patients diagnosed with CAD and 83 subjects with normal coronary parameters, determined by angiography) were genotyped for the TP53 (rs1042522) polymorphism by the polymerase chain reaction-restriction fragment length polymorphism technique. Clinical and laboratory findings were also evaluated. The χ² test and unpaired Student's t-test were applied to compare genotype and allele distributions and clinical characteristics between the two groups. Significant associations of the Pro72 allele [odds ratio (OR)=1.66, P=0.027] and Pro/Pro genotype (OR=2.91, P=0.022) with CAD were identified. No associations between patients' clinical findings and genotypes were apparent. Therefore, according to present findings, the TP53 Pro72 allele may be involved in the development of CAD along with conventional risk factors in patients from Northern Iran.

In the shadow of perceived threat: The live experience of Iranian patients candidate for undergoing coronary angiography

Coronary angiography (CAG) is a stressful event for many patients. This article aimed to explore the Iranian patients' experiences of undergoing CAG. In this qualitative study that is a substudy of a larger study, 15 patients (seven men and eight women) with a mean age of 49.8 ± 11.6 years were recruited from three hospitals in Shiraz, southwest Iran. Data were collected using semistructured, face-to-face interview before undergoing CAG. Interviews were audiotaped and transcribed. Data were analyzed using qualitative content analysis. Perceived threat of patients included two themes: being under pressure and anxiety. Patients undergoing CAG experience psychological problems that can threaten them in catheterization laboratory. Health professionals are required to help and prepare this patient for an invasive CAG. To minimize the psychological problems of patients undergoing CAG, nurses and physicians should perform some supportive interventions in their care plan.

The risk of cardiovascular events based on the Framingham criteria in Adults Living in Mashhad (Iran)

BACKGROUND AND AIM

Cardiovascular diseases are a problem in low- and middle-income countries, such as Iran. The present research was performed to identify risk factors contributing to cardiovascular diseases and their distributions among the adult population of Mashhad (Iran) using the Framingham criteria.

METHODS

This cross-sectional population-based study performed in 2015 on 2,976 adults living in Mashhad (Iran) using Stratified cluster-random sampling method. Demographic information was acquired by surveyors in the research team using a checklist and referring to a medical laboratory for laboratory assessments. The 10-year risk of cardiovascular diseases for the participants was calculated using the Framingham criteria and was classified into three classes: low risk (<10%), intermediate risk (10-20%), and high risk (>20%). The analysis was done by SPSS Version 11.5 by using the Independent-samples t-test, Kruskal-Wallis, and analysis of variance (ANOVA).

RESULTS

A total of 2,978 participants aged 16-90 participated in our cross-sectional study with an average age of 43.5±14.7 years. Total risk scores among men and women were 7.29±6.3 and 5.8±6.03, respectively. Compared to women, men exhibited a significantly higher risk of cardiovascular diseases (p<0.001). Average heart age among men and women was estimated at 50.37±18.7 and 48.8±17.0 respectively, i.e. significantly older heart age was obtained for men compared to women (p<0.001).

CONCLUSION

According to this study, men are at a great risk of cardiovascular events, so we should develop our screening and educational program especially for this population.

The expression of hSR-B1 on platelets of patients with coronary artery disease (CAD)

INTRODUCTION

The human scavenger receptor class B type 1 (hSR-B1), which serves as a high affinity receptor for HDL, is expressed on platelet surface and mediates various anti-atherogenic functions. Based on the anti-thrombotic effect of HDL and the importance of HDL-SR-B1 in the formation of atherosclerotic plaque, the present study was aimed to investigate and compare the expression level of hSR-B1on platelets of CAD patients with that of normal controls.

METHODS

The expression of the hSR-B1 on platelets of 31 CAD patients with atherosclerotic plaque and 20 healthy controls were detected using flowcytometry and western blotting. Moreover, platelet function in response to the agonists was examined by aggregometry, and the lipid panel tests were assayed using chemistry autoanalyzer.

RESULTS

Our findings showed that the expression of hSR-B1 was significantly reduced on the surface of platelets from CAD patients with atherosclerotic disease, as compared with healthy controls (6/8% vs. 13/6%) (P < 0,001). Of particular of interest, we also found that the formation of aggregates after stimulation of the platelets with ADP was higher in patients with atherosclerotic disease than the controls; indicating an inverse relationship between hSR-B1 expression and the function of human platelets.

CONCLUSION

Taken together, the results of the present study raise the possibility that the measurement of hSR-B1 expression on human platelets may provide a valuable insight that reflects the status of RCT in patients with atherosclerosis.