Publications by authors named "Michael Hendrickson"

Background: Cardiovascular disease (CVD) is a leading cause of death in ANCA-associated vasculitis (AAV). Screening and primary cardiovascular prevention may improve outcomes.

Methods: We identified patients in the 2002-2019 Mass General Brigham AAV cohort with thoracic CT scans obtained for other clinical purposes.

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Vascular inflammation is a hallmark of both primary systemic vasculitis and atherosclerosis. As such, cardiovascular events are common in patients with vasculitis and likely due to both direct vascular inflammation and accelerated atherosclerosis. Direct cardiac involvement is possible in all vasculitides, though more commonly described in Takayasu arteritis, polyarteritis nodosa, and eosinophilic granulomatosis with polyangiitis.

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Background: Guidelines and risk scores have sought to standardize the management of syncope in the emergency department (ED), but variation in practice remains.

Objective: The purpose of this study was to explore factors associated with admission for patients presenting to the ED with low-risk syncope.

Methods: Our study population included adult patients in the Nationwide Emergency Department Sample between 2006 and 2019 who presented to an ED with a primary diagnosis of syncope.

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Article Synopsis
  • Esophageal perforation (EP) is a critical health emergency that requires immediate surgery, and research has highlighted racial-ethnic disparities in outcomes among these patients.
  • Data collected from the National Inpatient Sample between 2000 and 2017 shows that while hospitalizations for EP have risen for all racial-ethnic groups, there are notable differences in complications and mortality, particularly for non-Hispanic Black and other minority patients.
  • Although inpatient mortality rates have overall decreased, non-Hispanic Black patients showed a higher likelihood of complications like sepsis, suggesting there may be underlying issues regarding quality of care related to race and ethnicity.
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Neurological disorders associated with inflammation and oxidative stress show reduced glutathione (GSH) levels in the human brain. Drug discovery efforts and pharmacological studies would benefit from tools (e.g.

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  • - The study examines the rising prevalence of coronary artery disease (CAD) in adults with chronic limb-threatening ischemia (CLTI) from 2000 to 2018, finding that about 23% of CLTI patients also had CAD, which increased over the years from 15.3% to 23.1%.
  • - It reports that individuals with CLTI and CAD have a higher risk of in-hospital mortality and complications, such as bleeding requiring transfusion, compared to those without CAD.
  • - The research highlights a shift in treatment methods, showing an increase in endovascular procedures over surgical ones for patients with both CAD and CLTI, and suggests a need for improved interventions for this vulnerable group.
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  • Low- and middle-income countries, especially India, face a significant burden from coronary artery disease, yet there is limited data on STEMI patients in these areas.
  • A study of 3,635 STEMI patients in Northern India revealed that a significant portion were young and had common risk factors like smoking and hypertension, with 30-day and 1-year mortality rates at 9% and 11% respectively.
  • Female patients were less likely to receive optimal treatment (PCI) and experienced over twice the mortality rate compared to males, highlighting a critical health disparity that needs to be addressed.
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  • Prevention strategies for standard modifiable cardiovascular risk factors (SMuRFs) are crucial for improving outcomes in cardiovascular disease, but acute myocardial infarction (AMI) can still occur in individuals without SMuRFs.
  • A study analyzed AMI hospitalizations from 2000 to 2014 and found that 3.6% of patients had no documented SMuRFs, often receiving fewer medical treatments and procedures.
  • Patients without SMuRFs had significantly higher mortality rates within 28 days and 1 year after hospitalization for AMI compared to those with SMuRFs, highlighting the need for better early risk identification and tailored treatment strategies for this group.
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Coronary heart disease is disproportionately prevalent in the American Indian/Alaska Native (AI/AN) population. As care for acute myocardial infarction (AMI) continues to advance, equitable distribution and access for the AI/AN population is essential. Primary AMI hospitalizations for adults ≥18 years of age were identified from the Healthcare Cost and Utilization Project National Inpatient Sample from 2000 to 2018.

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  • A study examines the impact of aortic stenosis (AS) on patients hospitalized for acute decompensated heart failure (ADHF), focusing on demographics and mortality outcomes from 2005 to 2014.
  • In the analyzed population, AS was found in about 12.1% of patients with low left ventricular ejection fraction (LVEF) and 18.7% with higher LVEF, with lower prevalence in Black patients compared to White patients.
  • The severity of AS was linked to increased 1-year mortality rates, suggesting that even mild or moderate AS has significant implications for patient outcomes in the ADHF population.
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The role for direct current cardioversion (DCCV) in the management of atrial fibrillation (AF) in the emergency department (ED) is unclear. Factors associated with DCCV in current practice are not well described, nor is the variation across patients and institutions. All ED encounters with a primary diagnosis of AF were identified from the Nationwide Emergency Department Sample from 2006 to 2017.

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  • Mechanical circulatory support devices like the intra-aortic balloon pump (IABP) and Impella are commonly used in patients experiencing cardiogenic shock on veno-arterial extracorporeal life support (VA-ECLS), despite a lack of extensive clinical trial data.
  • Between 2016 and 2018, the use of Impella with VA-ECLS increased from 10% to 18%, while IABP usage only saw a modest rise from 25% to 26%.
  • Despite a decrease in in-hospital mortality rates, adding IABP or Impella to VA-ECLS did not significantly change mortality or length of hospital stay, indicating the need for further research on the best practices for timing
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The epidemiology of mitral stenosis (MS) continues to evolve in the United States. Although the incidence of rheumatic MS has decreased in high-income countries, there is a paucity of data surrounding trends in percutaneous balloon mitral valvuloplasty (PBMV), the current first-line management strategy. This study aimed to identify contemporary trends in PBMV in the United States.

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Background: Dysglycemia is a major and increasingly prevalent cardiometabolic risk factor worldwide, but is often undiagnosed even in high-risk patients. We evaluated the impact of protocolized screening for dysglycemia on the prevalence of prediabetes and diabetes among patients presenting with ST-segment elevation myocardial infarction (STEMI) in North India.

Methods: We conducted a prospective NORIN STEMI registry-based study of patients presenting with STEMI to two government-funded tertiary care medical centers in New Delhi, India, from January to November 2019.

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Cardiogenic shock is associated with high short-term mortality. Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is increasingly used as a mechanical circulatory support strategy for patients with refractory cardiogenic shock. A drawback of this hemodynamic support strategy is increased left ventricular (LV) afterload, which is mitigated by concomitant use of Impella (extracorporeal membrane oxygenation with Impella [ECPELLA]).

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  • * Out of 3,597 patients, a significant number presented with reduced LVEF, with nearly 50% having LVEF less than 40%, which correlated with an increased risk of mortality over one year.
  • * Despite high initial discharge rates on guideline-directed therapies, patient adherence to these treatments after one year was notably low, highlighting the need for improved access to timely care and better treatment compliance in these regions.
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As advancements in care improve longevity in patients with congenital heart disease (CHD), it is crucial to further characterize this rapidly growing adult population. It is also essential that equitable care is offered across demographic groups. Hospitalizations for adults with CHD in the National Inpatient Sample were identified to describe trends in overall and cause-specific rates of admission per 1,000 adults with CHD from 2000 to 2018.

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Background: Risk prediction following ST-Elevation Myocardial Infarction (STEMI) in resource limited countries is critical to identify patients at an increased risk of mortality who might benefit from intensive management.

Methods: North India ST-Elevation Myocardial Infarction (NORIN-STEMI) is an ongoing registry that has prospectively enrolled 3,635 STEMI patients. Of these, 3191 patients with first STEMI were included.

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Objectives: The study aimed to evaluate cost trends associated with mitral valve transcatheter edge-to-edge repair (TEER).

Background: TEER is a treatment option for patients at prohibitive surgical risk with moderate to severe mitral valve regurgitation and NYHA class III or IV symptoms. The 30-day costs and causes of readmission following TEER have not been well studied.

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Background: Current risk scores to estimate atherosclerotic cardiovascular disease (ASCVD) risk and allocate statins in at-risk persons have largely been developed in Western populations; their applicability in India is uncertain.

Objective: To assess eligibility for primary prevention statin therapy using the 2018 U.S Multisociety Guideline and other contemporary cholesterol guidelines in patients presenting with ST-elevation myocardial infarction (STEMI) in the North India STEMI (NORIN-STEMI) registry.

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Background: Atrial fibrillation (AF) and mitral regurgitation (MR) are closely interrelated in the setting of heart failure (HF). Here we investigate the prevalence and prognostic significance of AF in patients with acute decompensated HF (ADHF) stratified by MR severity.

Methods And Results: The Atherosclerosis Risk in Communities Study investigated ADHF hospitalizations in residents greater than or equal to 55 years of age in 4 US communities.

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Transcatheter aortic valve replacement (TAVR) has developed substantially since its inception. Improvements in valve design, valve deployment technologies, preprocedural imaging and increased operator experience have led to a gradual decline in length of hospitalisation after TAVR. Despite these advances, the need for permanent pacemaker implantation for post-TAVR high-degree atrioventricular block (HAVB) has persisted and has well-established risk factors which can be used to identify patients who are at high risk and advise them accordingly.

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Objective: Little is known about the effect of government-issued State of Emergency (SOE) and Reopening orders on health care behaviors. We aimed to determine the effect of SOE and Phase 1 of Reopening orders on hospitalizations for acute myocardial infarction (AMI) or acute decompensated heart failure (ADHF).

Methods: Hospitalizations for AMI and ADHF in the UNC Health system, which includes 10 hospitals in both urban and rural counties, were identified.

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Objectives: This study investigates the prevalence and prognostic significance of mitral regurgitation (MR) in acute decompensated heart failure (ADHF) patients.

Background: Few studies characterize the burden of MR in heart failure.

Methods: The ARIC (Atherosclerosis Risk In Communities) study surveilled ADHF hospitalizations for residents ≥55 years of age in 4 U.

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