Publications by authors named "Robert Merritt"

The Clinical Practice Standards Committee of the American Association for Thoracic Surgery assembled an expert panel and conducted a systematic review of the literature detailing studies directly comparing treatment options for high-risk patients with stage I non-small cell lung cancer (NSCLC). A systematic search was performed to identify publications comparing outcomes following image-guided thermal ablation (IGTA), stereotactic ablative radiotherapy (SABR), and sublobar resection-the main treatment options applicable to high-risk patients with stage I NSCLC. There were no publications detailing completed randomized controlled trials comparing these treatment options.

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Stereotactic ablative radiotherapy (SABR) has emerged as an alternative, non-surgical treatment for high-risk patients with stage I non-small cell lung cancer (NSCLC) with increased use over time. The American Association for Thoracic Surgery (AATS) Clinical Practice Standards Committee (CPSC) assembled an expert panel and conducted a systematic review of the literature evaluating the results of SABR, which is also referred to as stereotactic body radiation therapy (SBRT) or stereotactic radiosurgery (SRS), prior to developing treatment recommendations for high-risk patients with stage I NSCLC based on expert consensus. Publications detailing the findings of 16 prospective studies of SABR and 14 retrospective studies of SABR for the management of early-stage lung cancer in 54 697 patients were identified by systematic review of the literature with further review by members of our expert panel.

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Sublobar resection offers a parenchymal-sparing surgical alternative to lobectomy and includes wedge resection and segmentectomy. Sublobar resection has been historically utilized in high-risk patients with compromised lung function; however, the technique is becoming more prevalent for normal-risk patients with peripheral lung tumors < 2 cm. In this article, we summarize the technique of sublobar resection, the importance of surgical margins and lymph node sampling, patient selection, perioperative complications, outcomes, and the impact of sublobar resection on the quality of life.

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Article Synopsis
  • * An expert panel from the American Association for Thoracic Surgery reviewed existing literature and reached a consensus on treatment modalities, which include sublobar resection, image-guided thermal ablation (IGTA), and stereotactic ablative radiotherapy (SABR).
  • * The conclusions highlight that surgical approaches are often preferred when safe, but SABR and IGTA can be suitable alternatives; multidisciplinary evaluations and patient preferences play crucial roles in treatment decisions.
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Objective: A significant proportion of patients with stage I non-small cell lung cancer (NSCLC) are considered at high risk for complications or mortality after lobectomy. The American Association for Thoracic Surgery (AATS) previously published an expert consensus document detailing important considerations in determining who is at high risk. The current objective was to evaluate treatment options and important factors to consider during treatment selection for these high-risk patients.

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Image-guided thermal ablation (IGTA) applied to pulmonary pathology is an alternative to surgery in high-risk patients with stage I non-small cell lung cancer (NSCLC). Its application to lung neoplasm was first introduced in 2001 and has been implemented to treat metastatic disease to the lung or in select medically inoperable patients with peripheral stage I NSCLC. IGTA may also be an alternative to treat stage I NSCLC in non-operable patients with interstitial lung disease in whom a radiation modality is deemed too high risk.

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Objective: The American Association for Thoracic Surgery (AATS) Clinical Practice Standards Committee (CPSC) previously published important considerations in determining who is at high risk for complications or mortality after lobectomy. Sublobar resection, stereotactic ablative radiotherapy, or image-guided thermal ablation is typically considered when the risks associated with lobectomy are high. The current objective was to evaluate important lung-nodule-related factors to consider during treatment selection for high-risk patients with stage I non-small cell lung cancer (NSCLC).

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  • Unfavorable health-related social needs (HRSNs) can worsen overall health and contribute to health disparities, particularly in cardiovascular health (CVH) among U.S. adults.
  • A study using data from the National Health and Nutrition Examination Survey analyzed the relationship between HRSNs and CVH using a scoring system, finding that a higher number of unfavorable HRSNs correlated with poorer CVH.
  • The results suggest that addressing these HRSNs through public health initiatives could help reduce health inequalities and improve cardiovascular health outcomes.
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  • Tuberculosis is a major cause of death from infectious diseases, with the infection first occurring in the alveoli, where it interacts with alveolar lining fluid (ALF).
  • Research indicates that as people age, ALF becomes more oxidized and inflammatory, which helps the bacteria (likely Mycobacterium tuberculosis) reproduce more effectively in human macrophages and type II alveolar epithelial cells (ATs).
  • The study reveals that exposure to ALF from elderly humans (E-ALF) enhances the bacteria's ability to adapt and replicate by upregulating specific genes, suggesting that changes in lung mucosa with age significantly impact how tuberculosis develops and survives within human cells.
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Objective: Chat-based artificial intelligence programs like ChatGPT are reimagining how patients seek information. This study aims to evaluate the quality and accuracy of ChatGPT-generated answers to common patient questions about lung cancer surgery.

Methods: A 30-question survey of patient questions about lung cancer surgery was posed to ChatGPT in July 2023.

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  • The study explores how social vulnerability affects all-cause mortality rates among Medicare beneficiaries hospitalized with acute ischemic stroke (AIS) during the COVID-19 pandemic.
  • It found that a significant portion of affected patients lived in highly vulnerable counties, which were marked by higher proportions of certain demographics, severe strokes, and health issues.
  • Results indicated that patients from these vulnerable areas experienced noticeably higher mortality rates, highlighting the need for targeted interventions to reduce disparities in health outcomes.
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  • The study focused on understanding the rates of implantable cardioverter-defibrillator (ICD) placement among survivors of out-of-hospital cardiac arrest, specifically in patients aged 65 and older with shockable rhythms.
  • Out of 3226 patients analyzed, only 30.9% received an ICD before discharge, and factors like older age, being female, and a history of diabetes were linked to lower chances of obtaining one, but race/ethnicity showed no significant differences in ICD placement.
  • The research highlighted substantial variability in ICD implantation rates among different hospitals, with some facilities providing them to nearly 50% of survivors, while others offered them to only 20%, indicating a need for more uniform practices in
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Background: In the early 2000s, a significant shortage of cardiothoracic surgeons was predicted. We sought to evaluate our specialty's progress and to update the predicted needs of cardiothoracic surgeons in the coming decades.

Methods: To assess the supply of cardiothoracic surgeons, the evolution of cardiothoracic surgery training was reviewed.

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Introduction: This study examined the association between American Heart Association's (AHA) cardiovascular health (CVH) metrics, Life's Essential 8 (LE8), and predicted heart age among U.S. adults.

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Early-stage lung cancer patients are increasingly considered for preoperative systemic therapy. Older adults in particular are among the most vulnerable patients, with little known on how preoperative therapies affect the risk-benefit of surgery. We sought to summarize the current literature and elucidate existing evidence gaps on the effects of prehabilitation interventions relative to age-related functional impairments and the unique needs of older patients undergoing lung cancer surgery.

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The reconstruction of the esophagus after esophagectomy presents many technical and management challenges to surgeons. An effective gastrointestinal conduit that replaces the resected esophagus must have adequate length to reach the upper thoracic space or the neck, have robust vascular perfusion, and provide sufficient function for an adequate swallowing mechanism. The stomach is currently the preferred conduit for esophageal reconstruction after esophagectomy.

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Background: SARS-CoV2, the virus that causes coronavirus disease 2019 (COVID-19), can affect multiple human organs structurally and functionally, including the cardiovascular system and brain. Many studies focused on the acute effects of COVID-19 on risk of cardiovascular disease (CVD) and stroke especially among hospitalized patients with limited follow-up time. This study examined long-term mortality, hospitalization, CVD and stroke outcomes after non-hospitalized COVID-19 among Medicare fee-for-service (FFS) beneficiaries in the United States.

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Hypertension in pregnancy (HP) includes eclampsia/preeclampsia, chronic hypertension, superimposed preeclampsia, and gestational hypertension. In the United States, HP prevalence doubled over the last three decades, based on birth certificate data. In 2019, the estimated percent of births with a history of HP varied from 10.

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Context: Electronic health records (EHRs) are an emerging chronic disease surveillance data source and facilitating this data sharing is complex.

Program: Using the experience of the Multi-State EHR-Based Network for Disease Surveillance (MENDS), this article describes implementation of a governance framework that aligns technical, statutory, and organizational requirements to facilitate EHR data sharing for chronic disease surveillance.

Implementation: MENDS governance was cocreated with data contributors and health departments representing Texas, New Orleans, Louisiana, Chicago, Washington, and Indiana through engagement from 2020 to 2022.

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Importance: Minimally invasive esophagectomy (MIE) is a complex procedure with substantial learning curves. In other complex minimally invasive procedures, suboptimal surgical performance has convincingly been associated with less favorable patient outcomes as assessed by peer review of the surgical procedure.

Objective: To develop and validate a procedure-specific competency assessment tool (CAT) for MIE.

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Background: Most studies on bystander cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) have focused on in-hospital or short-term survival.

Objectives: The purpose of this study was to examine the association between bystander CPR and long-term survival outcomes for OHCA.

Methods: Within the Cardiac Arrest Registry to Enhance Survival, we identified 152,653 patients with OHCA ≥65 years of age or older.

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Importance: Depression is a common mental health disorder in the US. Depressive symptoms have been associated with increased cardiovascular disease incidence and mortality, but studies have largely focused on narrow population subgroups.

Objective: To examine the association between depressive symptoms and mortality in a large, diverse, nationally representative sample of US adults, and to examine how lifestyle factors mediate this association.

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Background: Video-based assessment by experts may structurally measure surgical performance using procedure-specific competency assessment tools (CATs). A CAT for minimally invasive esophagectomy (MIE-CAT) was developed and validated previously. However, surgeon's time is scarce and video assessment is time-consuming and labor intensive.

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Article Synopsis
  • Radiation therapy (RT) for esophageal cancer was linked to a high incidence of atrial fibrillation (AF) and major adverse cardiovascular events (MACE), with 21.4% of patients developing AF soon after treatment.
  • Most cardiovascular events occurred within two years post-RT, showing a significantly higher observed AF rate compared to predicted rates from the Framingham study.
  • Increased radiation dose to the left atrium was strongly associated with the development of AF and negatively impacted overall survival, indicating the need for careful monitoring of cardiac health in patients receiving RT.
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