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Shahid, Mahek

Mayo Clinic

University of Arizona

Citations 7

Temporal and Geographical Disparities in Amyloid and Heart Failure-Related Mortality: An Epidemiological Study 1999-2020
Nguyen, Thi, Sainbayar, Enkhtsogt , Shahid, Mahek, Tang, Wenda , William, Preethi , Pham, Hoang Nhat , Ibrahim, Ramzi , Nguyen, Thi, Ferreira, João Paulo , Singh, Amitoj , Lee, Kwan , Tang, W. H. Wilson

Current Cardiology Reviews | July 15, 2025 | Volume: 22 | Issue: 3 | Pages: No page available

10.2174/011573403x374069250630105650 Get It

Introduction: Amyloidosis complicated by heart failure (HF) poses significant mortality. We sought to identify trends in comorbid amyloidosis and HF mortality in the recent 22- year period. Methods: Mortality due to amyloid and HF as contributors of death were queried from death certificates using the CDC database from 1999 to 2020. Mortality rates and their 95% confidence intervals were adjusted for age (AAMR) through the Direct method and compared by demographic subpopulations. The Monte-Carlo permutation test was used to estimate the annual percentage change (APC). Log-linear regression models were utilized to assess temporal variation in mortality. Results: Age-adjusted mortality rates (AAMR) increased from 0.09 [0.08-0.10] in 1999 to 0.27 [0.25-0.29] in 2020. Mortality increased from 1999 to 2013 (APC +1.4, p=0.048) with an accelerating inflection point in 2013 to 2020 (APC +13.3, p<0.001). AAMR was higher among male populations (AAMR 0.20 [0.20-0.21]) compared to female populations (AAMR 0.07 [0.07- 0.07]). A significant inflection point in uprising mortality rates was observed for both male and female populations in 2013 (p<0.001). Mortality was highest among Black populations (AAMR 0.33), followed by White (AAMR 0.10), Asian/Pacific Islander (AAMR 0.06), and American Indian/Alaska Native populations (AAMR 0.04). Among Black populations, mortality remained consistent from 1999 to 2012 (APC +1.1, p=0.184), followed by an increase from 2012 to 2020 (APC +14.0, p<0.001). Among White populations, mortality remained stagnant from 1999 to 2013 (APC +0.7, p=0.302), followed by an increase starting in 2013 to 2020 (APC +13.5, p<0.001). Discussion: Our findings of a marked rise in HF-related mortality in patients with amyloidosis since 2013 highlighted the profound impact of enhanced diagnostic awareness, novel imaging techniques, and emerging therapeutics. Our analysis also showed mortality disparities between sexes, and geographic locations, races, and ethnicity that warrant targeted public health interventions. Conclusions: Amyloid and HF mortality increased in the recent 22-year period, primarily starting in 2013, emphasizing the urgent need for targeted intervention to address these disparities.
Gastrointestinal bleed mortality disparities in patients with atrial fibrillation: A cross‐sectional analysis 1999–2020
Sainbayar, Enkhtsogt , Ibrahim, Ramzi , Noh, Sangkyu , Shahid, Mahek, Elias, Joseph , Grewal, Harneet, Mouhaffel, Rama, Folk, Akira, Hartnett, Jack , Lee, Justin Z. , Ibrahim, Ramzi , Pham, Hoang Nhat , Lee, Kwan

Journal of Arrhythmia | January 14, 2025 | Volume: 41 | Issue: 1 | Pages: No page available

10.1002/joa3.13223 Get It

Abstract Introduction Gastrointestinal bleeding (GIB) is often encountered among patients with atrial fibrillation (AF) due to the use of anticoagulation. This study assesses disparities in GIB‐related mortality among decedents with AF in the United States. Methods GIB mortality data in patients with AF from 1999 to 2020 was queried from the CDC database. Decedent demographic information (age, sex, race and ethnicity, and geographic residence) was obtained from death certificates. We calculated age‐adjusted mortality rates (AAMRs) through the direct method and estimated the annual percentage change (APC) in mortality using log‐linear regression models. Results From 11,209 GIB‐related deaths among AF decedents, we observed an increase in AAMR from 0.12 in 1999 to 0.21 in 2020, particularly during the 2009 to 2020 period (APC +4.8, p < .001). Disproportionate mortality rates were noted in males (AAMR 0.18) and White populations (AAMR 0.15) as compared to females (AAMR 0.13) and Black populations (AAMR 0.10), respectively. Rural regions also reported higher mortality (AAMR 0.18) than urban areas (AAMR 0.14). Mortality shifts in urban regions remained stagnant from 1999 to 2009 (APC –0.15, p = .806) followed by an increase from 2009 to 2020 (APC +4.83, p < .001). However, mortality increased consistently from 1999 to 2020 in rural regions (APC +4.08, p < .001). The Northeast US exhibited the highest mortality rate (AAMR 0.18), followed by the Midwest (AAMR 0.16), West (AAMR 0.14), and South (AAMR 0.13). Conclusions Disparities in GIB mortality among AF decedents were identified. These findings accentuate the need for targeted interventions to mitigate GIB risks in vulnerable subgroups.
Disparities in cardiac arrest mortality among patients with chronic kidney disease: A US ‐based epidemiological analysis
Shahid, Mahek, Pham, Hoang Nhat , Ibrahim, Ramzi, Sainbayar, Enkhtsogt , Abdelnabi, Mahmoud , Singh, Amitoj , Pathangey, Girish , Singh, Amitoj , Nhat, Hoang , Ibrahim, Ramzi

Journal of Arrhythmia | January 10, 2025 | Volume: 41 | Issue: 1 | Pages: No page available

10.1002/joa3.13217 Get It

Abstract Background Chronic kidney disease (CKD) increases cardiac arrest (CA) risk because of renal and cardiovascular interactions. Methods Using Centers for Disease Control and Prevention (CDC) data from 1999 to 2020, we analyzed CKD‐related CA mortality and the impact of social vulnerability index (SVI). Results We identified 336 494 CKD‐related CA deaths, with stable age‐adjusted mortality rates over time. Disparities were observed across gender, racial/ethnic, and geographic subpopulations, with higher mortality among males, Hispanic and non‐Hispanic Black populations, and those in urban and Western regions. Higher SVI correlated with increased mortality. Conclusions CKD‐related CA mortality rates are stable, with disparities across demographics; higher SVI correlates with increased mortality, highlighting needed interventions.
Peripartum Cardiomyopathy and Social Vulnerability: An Epidemiological Analysis of Mortality Outcomes
Shahid, Mahek, Ibrahim, Ramzi , Ulhaque, Tazeen, Pham, Hoang Nhat , Sainbayar, Enkhtsogt , Mamas, Mamas A. , Nhat, Hoang , Mamas, Mamas , Ibrahim, Ramzi , Lee, Kwan

Journal of the American Heart Association | October 25, 2024 | Volume: 13 | Issue: 21 | Pages: No page available

10.1161/jaha.124.034825 Get It

Background Peripartum cardiomyopathy (PPCM) outcomes have been previously linked to demographic and social factors. The social vulnerability index (SVI) is a measure of social vulnerability in the United States. We explored PPCM disparities and the impact of SVI on PPCM mortality. Methods and Results Mortality from 1999 to 2020, SVI, and demographic data were obtained from CDC databases. County‐specific SVI rankings were linked to PPCM age‐adjusted mortality rates (AAMRs), allowing for a comparative analysis of AAMRs across both cumulative populations and subpopulations to identify disparities. All US counties were then stratified into low‐ and high‐SVI groups, facilitating comparison of SVI rankings by estimation of excess‐deaths per 1 000 000 person‐years attributable to greater social vulnerability and rate ratios (RR) through univariable Poisson regression. We identified a total of 1026 deaths related to PPCM between 1999 and 2020. Overall AAMR increased from 0.180 in 1999 to 0.326 in 2020. Black populations (AAMR: 1.081) and Southern US counties (AAMR: 0.444) had the highest AAMRs compared with other racial and US census groups, respectively. Higher SVI accounted for 0.172 excess deaths per 1 000 000 person‐years (RR=1.800). Among Black and White populations, higher SVI also accounted for 0.248 and 0.071 excess deaths per 1 000 000 person‐years, respectively. Similar impacts of greater social vulnerability were observed when comparing the US census regions (Northeast RR=1.609, Midwest RR=1.819, South RR=1.934, West RR=1.776). Conclusions PPCM mortality disparities exist across racial and geographic populations in the United States. A greater burden of social vulnerability is associated with higher PPCM mortality on a national level.
A Contemporary Review on Heart Failure with Preserved Ejection Fraction: Epidemiology, Diagnosis, and Management
Shahid, Mahek, Olagunju, Abdulbaril , Mookadam, Martina , Mookadam, Farouk , Ibrahim, Ramzi , Mookadam, Farouk

Current Cardiology Reviews | September 20, 2024 | Volume: 21 | Issue: 1 | Pages: No page available

10.2174/011573403x318646240909072055 Get It

Heart failure with preserved ejection fraction (HFpEF) includes almost half of heart failure cases typified by a specific clinical syndrome. Despite diagnostic and management advances, HFpEF still presents a diagnostic challenge and a paucity of therapies specifically aimed at enhancing survival and improving quality of life is still lacking. This review elucidates the diagnostic complexity of HFpEF, highlighting the use of both subjective and objective criteria within algorithmic frameworks. It also examines the significant impact of comorbidities on the progression of HFpEF. Additionally, we explore the latest evidence on targeting these comorbidities therapeutically, although the benefits to mortality are still limited.
Trends in comorbid chronic kidney disease and atrial fibrillation‐related cardiovascular mortality in the United States
Ibrahim, Ramzi , Tan, Min Choon , Singh, Simar , Shahid, Mahek, Elchouemi, Mohanad , Gianni, Carola , Lee, Justin Z. , Al‐Ahmad, Amin , Tan, Min C , Ibrahim, Ramzi , Singh, Vikram J.

Journal of Arrhythmia | January 16, 2024 | Volume: 40 | Issue: 2 | Pages: 382-384

10.1002/joa3.12990 Get It

AbstractBackgroundThe impact of chronic kidney disease (CKD) on atrial fibrillation outcomes (AF) is not well understood.MethodsWe conducted analyses of comorbid AF and CKD related death in the United States from 1999 to 2020 using descriptive epidemiology.ResultsAge‐adjusted mortality rates (AAMR) per 100,000 increased from 0.39 in 1999 to 1.65 in 2020. Non‐Hispanic populations (1.01) and nonmetropolitan areas (1.08) had higher AAMRs compared to Hispanic (0.62) and metropolitan (0.97) areas. Midwestern (1.11) and Western (1.13) US regions recorded the highest AAMRs.ConclusionsThese findings highlight the need for interventions to address AF death disparities in patients with CKD.
Mortality trends, disparities, and social vulnerability in cardiac arrest mortality in the young: A cross‐sectional analysis
Shahid, Mahek, Sorajja, Dan , Deshmukh, Abhishek , Lee, Justin Z. , Deshmukh, Abhishek J , Ibrahim, Ramzi , Srivathsan, Komandoor

Journal of Cardiovascular Electrophysiology | November 3, 2023 | Volume: 35 | Issue: 1 | Pages: 35-43

10.1111/jce.16112 Get It

AbstractBackgroundCardiac arrest (CA) is a leading cause of death in the United States (US). Social determinants of health may impact CA outcomes. We aimed to assess mortality trends, disparities, and the influence of the social vulnerability index (SVI) on CA outcomes in the young.MethodsWe conducted a cross‐sectional analysis of age‐adjusted mortality rates (AAMRs) related to CA in the United States from the Years 1999 to 2020 in individuals aged 35 years and younger. Data were obtained from death certificates and analyzed using log‐linear regression models. We examined disparities in mortality rates based on demographic variables. We also explored the impact of the SVI on CA mortality.ResultsA total of 4792 CA deaths in the young were identified. Overall AAMR decreased from 0.20 in 1999 to 0.14 in 2020 with an average annual percentage change of −1.3% (p = .001). Black (AAMR: 0.30) and male populations (AAMR: 0.14) had higher AAMR compared with White (AAMR: 0.11) and female (AAMR: 0.11) populations, respectively. Nonmetropolitan (AAMR: 0.29) and Southern (AAMR: 0.26) regions were also impacted by higher AAMR compared with metropolitan (AAMR: 0.11) and other US census regions, respectively. A higher SVI was associated with greater mortality risks related to CA (risk ratio: 1.82 [95% CI, 1.77–1.87]).ConclusionsOur analysis of CA in the young revealed disparities based on demographics, with a decline in AAMR from 1999 to 2020. There is a correlation between a higher SVI and increased CA mortality risk, highlighting the importance of targeted interventions to address these disparities effectively.