Suchday, Pooja

Background: Stroke is a major health burden and the second leading cause of death globally, only after ischemic heart disease. While observational studies have elaborated on the effect of physical activity (PA) and sedentary behavior (SB) on stroke risk, their findings remain inconsistent and are often influenced by confounding factors and reverse causation. Mendelian randomization (MR) can help overcome these shortcomings and assess potential causal relationships using genetic variants as proxies for exposures. Methods: We conducted a systematic review and meta-analysis of MR studies investigating the effects of PA and SB on stroke risk. Following PRISMA guidelines, we searched PubMed and Google Scholar through May 2025. Eligible studies used two-sample MR designs to estimate the impact of moderate-to-vigorous physical activity (MVPA) and sedentary leisure behavior (SLB) on stroke outcomes. MVPA exposures included self-reported activity and accelerometer-derived measures (e.g., leisure time MVPA ≥425 mg), while SLB included television, screen time, sitting, etc. Key outcomes of interest were any stroke and ischemic stroke events. Random-effects models were used for meta-analysis and heterogeneity was assessed with the I2 statistic. Leave-one-out sensitivity analyses were performed to ensure robustness of the results. Results: Six studies met inclusion criteria. Genetically predicted MVPA was associated with a lower risk of stroke (pooled OR = 0.73; 95% CI: 0.53–1.01; p = 0.06), though the result was not statistically significant (I2= 79.5%). In contrast, SLB showed a significant association with increased stroke risk (pooled OR = 1.15; 95% CI: 1.01–1.31; p = 0.03; I2 = 89.9%). Sensitivity analyses confirmed that findings were not influenced by any single study. Conclusion: These findings support a causal association between SLB and increased stroke risk, with suggestive but non-significant evidence for MVPA’s protective role. Despite significant association, high heterogeneity warrants conscious interpretation of findings. Further MR studies using standardized exposure definitions and updated genetic data are needed to strengthen the results.

Background: Cardiac rehabilitation (CR) is emerging as an essential aspect of secondary prevention in patients recovering from acute myocardial infarction (AMI) or coronary artery disease (CAD). Exercise-based rehabilitation involves high-intensity interval training (HIIT), moderate-intensity continuous training (MICT), and maximum intensity interval training (MIIT). These are integral to improving cardiopulmonary fitness, cardiovascular outcomes, and affect health-related quality of life (HRQoL). HIIT is presumed to show better outcomes, though comparative evidence across exercise types remains inconsistent. Clarifying the differential impact of HIIT, MIIT, and MICT on physical and psychosocial outcomes is vital for optimizing CR. Methods: 5 studies involving 650 post-AMI adults enrolled in CR were included. Most studies compared HIIT and MICT; one study also included maximal-intensity interval training (MIIT), and all others used usual care as a control. Outcomes included cardiorespiratory fitness (VO2 max), functional capacity (6-minute walk test [6MWT]), HRQoL (EQ-5D-5L, MacNew), mental health (PHQ, vitality), sleep quality (PSQI), fatigue (FSS), and physiological measures (blood pressure (BP), lipid profile, stroke volume, VE_peak). A qualitative synthesis of findings was performed due to heterogeneity across studies. Results: All 5 studies indicated that structured exercise improved outcomes. HIIT led to greater gains in VO2max compared to MICT. MIIT, assessed in one study, showed the largest VO2max improvements. HRQoL improved in all modalities across EQ-5D-5L, MacNew, PHQ, and visual analog scales. Functional metrics (6MWT, PPO) and cardiovascular parameters (HDL-C, HR recovery) improved more with HIIT. BP, BMI, and HbA1c improved similarly across groups. In several studies, HIIT had a stronger effect on physical functioning and emotional health. Only HIIT led to a significant drop in depression scores. HDL cholesterol improved more with HIIT. Conclusion: HIIT provides superior gains in cardiorespiratory fitness and physical function compared to MICT or MIIT in CR participants, without compromising safety/quality of life. Mental health, HRQoL, and physiological parameters improve comparably across exercise modalities. These findings support that HIIT is an effective, time-efficient option in contemporary CR planning. Future standardized, large-scale, and long-term studies are needed to assess sustained clinical impact and cardiovascular event reduction.

Background: Studies in the past have demonstrated an association between sarcoidosis and pulmonary embolism (PE), but little is known about its impact, especially in young adults. We aim to determine the burden and impact of PE in young adults hospitalized with sarcoidosis. Methods: This study investigates the prevalence and consequences of PE in young adults aged 18–44 years hospitalized with sarcoidosis using data from the National Inpatient Sample (2016–2020) with relevant International Classification of Diseases (ICD)-10 codes. This study aims to address the primary outcomes of the burden and trends of PE and its associated impact on in-hospital mortality. Additionally, it explores secondary outcomes such as healthcare resource utilization and discharge patterns. Results: Among 50,385 young adults (median age 37 years) hospitalized with sarcoidosis, 1120 had PE, showing a linear increase from 2% in 2016 to 2.9% ( P < 0.001) in 2020. The sarcoidosis–PE+ group, predominantly in young blacks, exhibited a higher prevalence of comorbidities such as obesity, smoking, drug use, peripheral vascular disease, hypothyroidism and prior history of venous thrombus embolism. In contrast, the sarcoidosis–PE− group had a higher prevalence of diabetes (with/without chronic complication), hyperlipidemia and chronic pulmonary disease. Multivariable regression analysis adjusted for all potential sociodemographic and comorbid variables showed higher odds of all-cause mortality (odds ratio [OR]: 2.92, 95% confidence interval [CI]: 1.18–7.24, P < 0.02) in the sarcoidosis–PE+ group as compared to the sarcoidosis–PE− group. The sarcoidosis–PE+ group also had higher hospital costs and length of stay. Conclusion: The higher odds of in-hospital mortality with an increased length of stay and hospital cost observed in the sarcoidosis–PE+ group highlight the often underreported complications of sarcoidosis, particularly in a younger demographic. The relevance of this study stems from its potential to uncover trends that could lead to improved diagnostic and therapeutic strategies.

Introduction: Hypertension is an important modifiable risk factor for cardiovascular diseases. Cuffless blood pressure monitors (CL-BPMs) have emerged as convenient alternatives to traditional cuff-based monitors (C-BPMs). We aim to compare both modalities quantitatively and elaborate on the diagnostic accuracy of CL-BPM. We also discuss the need to address shortcomings of CL-BPMs that limit their current use in widespread clinical practice. Methods: We pooled data from 14 studies that simultaneously compared CL-BPM and C-BPM for ambulatory blood pressure monitoring (ABPM). The results were reported as mean differences (MD) in systolic and diastolic blood pressures (SBP and DBP) between the two modalities. Inverse variance weighted analysis was used to calculate pooled estimates. Tau 2 and I 2 statistics were used to assess heterogeneity. Results: A total of 1011 participants were included. Meta-analysis showed a 24-hour MD of 3.18 [95% CI 1.18-5.19, P=0.002] for SBP and 1.79 [95% CI (-0.43)-4, P=0.11] for DBP, with moderate and high heterogeneity (I 2 = 45% and 78%), respectively. MD in daytime SBP and DBP between the two modalities were 2.52 [95% CI 0.41-4.63, P=0.02] and 0.89 [95% CI (-1.17)-2.96, P=0.4], respectively. An MD of 9.02 [95% CI 4.56-13.49, P<0.0001] was observed for nighttime SBP, whereas it was 6.67 [95% CI 2.59-10.75, P=0.001] for nighttime DBP. Our findings suggest a significant difference in means of 24h SPB, day SBP, night SBP, and DBP between the two modalities, suggesting that cuffless monitors are not on par with cuffed monitors for these measurements. However, there was no significant difference in the means of 24-hour DBP and daytime DBP between the two modalities, suggesting that the cuffless devices were as accurate as the cuffed monitors in these scenarios. Conclusion: CL-BPMs showed an overall significant MD in BP compared to the standard C-BPM. Although the CL-BPM may be convenient, user-friendly, and help eliminate limb-circumference-based cuff sizing, it has some challenges. These include complex calibration protocols; accuracy concerns in several subgroups like individuals with dark skin tone, obesity, and pregnancy; and inability to track BP during sleep, exercise, and while on antihypertensives. Substantial heterogeneity in the results indicates a lack of standardized validation protocols. Detailed studies and subgroup analyses are required to validate these devices before their widespread use in clinical practice.

BACKGROUND: Studies in the past have demonstrated an association between sarcoidosis and pulmonary embolism but little is known about its impact, especially in young adults. We aim to determine the burden and impact of pulmonary embolism (PE) in young adults hospitalized with sarcoidosis. METHOD: The study investigates the prevalence and consequences of PE in young adults aged 18-44 years hospitalized with sarcoidosis using data from the National Inpatient Sample (2016-2020) with relevant ICD-10 codes. This study aims to address the primary outcomes of the burden and trends of PE and its associated impact on in-hospital mortality. Additionally, it explores secondary outcomes such as healthcare resource utilization and discharge patterns. RESULT: Among 50,385 young adults (median age 37 years) hospitalized with sarcoidosis, 1120 had PE, showing a linear increase from 2% in 2016 to 2.9% (p<0.001) in 2020. Sarcoidosis-PE+ group, predominantly in young blacks, exhibited a higher prevalence of comorbidities such as obesity, smoking, drug use, peripheral vascular disease, hypothyroidism, and prior history of VTE. In contrast, the sarcoidosis-PE- group had a higher prevalence of diabetes (with/without chronic complication), hyperlipidemia, and chronic pulmonary disease. Multivariable regression analysis adjusted for all potential sociodemographic and comorbid variables showed higher odds of all-cause mortality (OR: 2.92, 95% CI: 1.18-7.24, p <0.02) in the sarcoidosis-PE+ group as compared to sarcoidosis-PE- group. The sarcoidosis-PE+ group also had higher hospital costs and length of stay. CONCLUSION: The higher odds of in-hospital mortality with an increased length of stay and hospital cost observed in the sarcoidosis-PE+ group highlight the often underreported complications of sarcoidosis, particularly in a younger demographic. The relevance of this study stems from its potential to uncover trends that could lead to improved diagnostic and therapeutic strategies.

Background: The association of prediabetes (pDM) with stroke risk in non-diabetic geriatric patients with AF is unclear. The findings from this analysis contribute to a better understanding of the interrelation between pDM, AF, and stroke, highlighting the need for targeted interventions and risk management strategies in this vulnerable population. Methods: Utilizing the 2019 National Inpatient Sample and employing ICD-10 CM coding, we identified all non-diabetic geriatric admissions with AF. Patients were categorized into two groups: pDM+ and pDM-. The primary outcomes of interest were stroke incidence, odds and potential sex disparities in odds as a risk factor for stroke in geriatric patients with AF. Results: Of the total 218130 non-diabetic geriatric AF admissions, 3525(1.6%) had pDM. The pDM+ cohort was relatively younger (median 75 vs 77 years), and often consisted of females (57.9%; p<0.359), white (80.1%), and from the higher-income quartile (28.5%); (p<0.001). The preDM+ group had significantly higher rates of complicated HTN (50.2 vs 43.6%), hyperlipidemia (66.4 vs 53.7%), obesity (30.2 vs 13.6%), PVD (15.3 vs 9.9%), stroke (1.4 vs 0.8%). After adjusting for baseline characteristics/comorbidities, the pDM+ cohort with AF admissions showed a higher rate and significantly higher odds of stroke vs the pDM- cohort (1.4% vs. 0.8%, OR 2.00, 95%CI 1.06-3.77; p=0.033). On subgroup analyses, males had a stronger association (OR 5.48, 95%CI 1.43-21.02; p=0.013) vs. females. Conclusion: Our research revealed that geriatric patients hospitalized with AF who had concomitant pDM were twice likely to develop stroke, with male preponderance. Further research is warranted to develop tailored interventions to mitigate the risk of stroke in AF patients with pDM.

Introduction: Lipoprotein (a) [Lp(a)] has been recognized as an independent predictor of atherosclerotic cardiovascular disease (ASCVD). However, there is limited data on the association between Lp(a) levels and risk of recurrent myocardial infarction (MI)/coronary revascularization in patients with acute coronary syndrome (ACS) who underwent percutaneous coronary intervention (PCI). Methods: PubMed/Medline, EMBASE, and Scopus were searched for studies evaluating the association of Lp(a) with recurrent ischemic events from the year 2000-2023. Patients with coronary artery disease or ACS with baseline Lp(a) who underwent PCI or coronary stenting and had outcomes as recurrent MI/ coronary revascularization were included. Random effects models and I 2 statistics were used for pooled hazard ratios (HR), odds ratio (OR), and heterogeneity assessment. A leave-one-out sensitivity analysis was also performed. Results: The initial search resulted in 651 articles, of which nine studies with 27964 patients (mean age 58-66 years, 74.79% male) were included. Of the nine studies, six were retrospective and three prospective. Mean±SD/Median (IQ) follow-up duration was four years [range 2-7 years]. There was an increased risk of recurrent MI/coronary revascularization associated with Lp(a) ≥30 mg/dL (OR, 1.44, 95% CI: 1.09-1.89, I 2 = 79.24%, p=0.009) (Fig 1a) and Lp(a) ≥10-30 mg/dL (OR, 1.19, 95% CI: 1.009-1.416, I 2 = 0%, p=0.039) (Fig 1b), but failed to reach significance with Lp(a) as a continuous variable (OR, 1.004, 95% CI: 0.998-1.009, I 2 = 85.02%, p=0.221) (Fig 1c). Leave-one-out sensitivity analysis showed an equivalent result for various Lp(a) cutoffs (Fig 1a, 1b, and 1c). Conclusions: Our meta-analysis suggests an association of raised Lp(a) with increased risk of recurrent MI/coronary revascularization in ACS patients who underwent PCI.

Background: Cardiovascular disease is the leading cause of death worldwide, with a notable impact on postmenopausal women. However, contemporary large-scale population-based data for the burden and disparities of Major Adverse Cardiovascular and Cerebrovascular Events (MACCE) in this population remains limited. Methods: The National Inpatient Sample (2020, ICD10 codes, age>55 years) was queried to identify postmenopausal women's hospitalizations. Socio-demographics, racial subgroups, comorbidities, and MACCE rates were retrieved with a more granular comparative analysis in postmenopausal women. A p<0.05 was considered statistically significant. Results: Of the total 8435195 postmenopausal women hospitalizations (median age 75 years), 1021375 (12.1%) were identified with MACCE. MACCE cohort, in comparison to non-MACCE cohort, had significantly higher prevalence of hypertension (77.1% vs 71.3), diabetes (39.8% vs 34.0%), hyperlipidemia (53.7% vs 48.4%), PVD (9.8% vs 7.1%), prior MI (8.3 vs 5.7%), prior TIA/stroke (10.5 vs 9%) and CKD (29.4 vs 23.4%). Significant clinical predictors for all-cause mortality were found to be race Asian/PI vs white ( 1.31 [1.09-1.18]), median household income national quartile (1.16 [1.13-1.20]), hypertension (1.18[1.16-1.20]) diabetes (1.20 [1.19-1.22]), hyperlipidemia (1.12[1.11-1.14]), prior MI (1.37[1.34-1.40]) and prior TIA stroke (1.0 5 [1.03-1.07] (all p<0.05). Conclusion: Among hospitalizations, Asian/Pacific Islanders, patients from the lowermost income quartile with co-existent hypertension, diabetes, hyperlipidemia, CKD, and cardiovascular comorbidities independently revealed the highest MACCE rates. Special emphasis needs to be laid on socio-demographics, comorbidities, and racial differences for CVD disease prevention, and risk factor modification in postmenopausal women.