Publications by authors named "Chad Cannon"

Background: Higher cardiac troponin is associated with worse outcomes in patients with acute heart failure. The significance of repeat measurements over hours remains unclear. We assessed whether a repeat measurement and the Δ between measurements of high-sensitivity cardiac troponin I (hs-cTnI) were associated with outcomes in hypervolemic patients with acute heart failure without acute coronary syndrome.

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Sepsis impacts 1.7 million Americans annually. It is a life-threatening disruption of organ function because of the body's host response to infection.

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Neuromuscular blocking agents are one of the few medication classes that have demonstrated a clinical benefit in patients with severe acute respiratory distress syndrome (ARDS). However, most literature utilized cisatracurium, and utilization of atracurium is limited to 1 small study. The purpose of this study was to provide further evidence comparing the safety and efficacy of atracurium versus cisatracurium for the treatment of ARDS.

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Article Synopsis
  • Body mass index (BMI) affects the relationship between certain biomarkers and prognosis in patients with acute heart failure (AHF), with a specific focus on B-type natriuretic peptide (BNP) and high-sensitivity cardiac troponin I (hs-cTnI).
  • A study of 866 AHF patients revealed that while BNP and hs-cTnI levels decreased with higher BMI, biomarkers like galectin-3 and sNGAL showed an increase.
  • The analysis indicated that BNP's association with adverse outcomes weakened as BMI rose, particularly in obese individuals, whereas hs-cTnI remained a reliable prognostic factor across all BMI categories.
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Background: Galectin-3, a biomarker of inflammation and fibrosis, can be associated with renal and myocardial damage and dysfunction in patients with acute heart failure (AHF).

Methods And Results: We retrospectively analyzed 790 patients with AHF who were enrolled in the AKINESIS study. During hospitalization, patients with galectin-3 elevation (> 25.

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Aims: Kidney function changes dynamically during AHF treatment, but risk factors for and consequences of worsening renal function (WRF) at hospital admission are uncertain. We aimed to determine the significance of WRF at admission for acute heart failure (AHF).

Methods And Results: We evaluated a subgroup of 406 patients from The Acute Kidney Injury Neutrophil gelatinase-associated lipocalin Evaluation of Symptomatic heart failure Study (AKINESIS) who had serum creatinine measurements available within 3 months before and at the time of admission.

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Background: Although not mentioned in the most recent guidelines, the 2016 Surviving Sepsis Campaign guidelines recommend to taper corticosteroids once vasopressors are no longer needed; however, at the time of publication, there were no studies comparing taper versus abrupt discontinuation of corticosteroids.

Objectives: The purpose of this study was to further evaluate the impact of abrupt versus taper discontinuation of corticosteroids in septic shock.

Methods: This was a retrospective cohort study that included patients who received an initial dose of 200 to 300 mg of hydrocortisone for septic shock.

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Background: Cardiac troponin (cTn) can be elevated in many patients presenting to the emergency department (ED) with chest pain but without a diagnosis of acute coronary syndrome (ACS). We compared the prognostic significance of cTn in these different populations.

Methods: We retrospectively analyzed the CHOPIN study, which enrolled patients who presented to the ED with chest pain.

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Background: The epidemiology and outcomes of hypertensive crisis (HTN-C) in patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD) have not been well studied. The objective of our study is to describe the incidence, clinical characteristics, and outcomes of emergency department (ED) visits for HTN-C in patients with CKD and ESRD.

Methods: We performed a secondary analysis of Nationwide Emergency Department Sample databases for years 2016-2018 by identifying adult patients presenting to ED with hypertension related conditions as primary diagnosis using appropriate diagnosis codes.

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Background: In patients with acute heart failure (AHF), the development of worsening renal function with appropriate decongestion is thought to be a benign functional change and not associated with poor prognosis. We investigated whether the benefit of decongestion outweighs the risk of concurrent kidney tubular damage and leads to better outcomes.

Methods: We retrospectively analyzed data from the AKINESIS study, which enrolled AHF patients requiring intravenous diuretic therapy.

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Objectives: Cocaine use (CU) related chest pain (CP) is a common cause of emergency department (ED) visits in the United States. However, information on disposition and outcomes in these patients is scarce. We conducted a nationwide study to assess disposition from ED, hospitalization rates, in-hospital outcomes, and health care costs in patients with history of CU who presented to the ED with CP.

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Background: The BinaxNOW coronavirus disease 2019 (COVID-19) Ag Card test (Abbott Diagnostics Scarborough, Inc.) is a lateral flow immunochromatographic point-of-care test for the qualitative detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleocapsid protein antigen. It provides results from nasal swabs in 15 minutes.

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Purpose: Several research articles have been published within the last decade comparing the use of tenecteplase to alteplase in ischemic stroke management. Prior reporting on the comparative therapeutic efficacy and safety profiles of tenecteplase and alteplase is reviewed.

Summary: Tenecteplase is a variant of native tissue-type plasminogen activator, which rapidly promotes thrombolysis by catalyzing formation of the serine protease plasmin.

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Despite an estimated 2.8 million annual ED visits, traumatic brain injury (TBI) is a syndromic diagnosis largely based on report of loss of consciousness, post-traumatic amnesia, and/or confusion, without readily available objective diagnostic tests at the time of presentation, nor an ability to identify a patient's prognosis at the time of injury. The recognition that "mild" forms of TBI and even sub-clinical impacts can result in persistent neuropsychiatric consequences, particularly when repetitive, highlights the need for objective assessments that can complement the clinical diagnosis and provide prognostic information about long-term outcomes.

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Background: Emergency physicians frequently evaluate patients with postoperative wound issues. The differential is broad, but obviously includes postoperative site infections. We present a case where a suspected postoperative abscess was evaluated with bedside ultrasound prior to incision and drainage.

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Background: Multiple publications demonstrate an association between time to initiation of corticosteroids and outcomes such as mortality and reversal of shock. However, the optimal time to initiate hydrocortisone remains unknown.

Objective: To evaluate the impact of early versus late initiation of hydrocortisone in septic shock patients.

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Aims: Improving renal function (IRF) is paradoxically associated with worse outcomes in acute heart failure (AHF), but outcomes may differ based on response to decongestion. We explored if the relationship of IRF with mortality in hospitalized AHF patients differs based on successful decongestion.

Methods And Results: We evaluated 760 AHF patients from AKINESIS for the relationship between IRF, change in B-type natriuretic peptide (BNP), and 1-year mortality.

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Prompt treatment may mitigate the adverse effects of congestion in the early phase of heart failure (HF) hospitalization, which may lead to improved outcomes. We analyzed 814 acute HF patients for the relationships between time to first intravenous loop diuretics, changes in biomarkers of congestion and multiorgan dysfunction, and 1-year composite end point of death or HF hospitalization. B-type natriuretic peptide (BNP), high sensitivity cardiac troponin I (hscTnI), urine and serum neutrophil gelatinase-associated lipocalin, and galectin 3 were measured at hospital admission, hospital day 1, 2, 3 and discharge.

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Background: Multiple different pathophysiologic processes can contribute to worsening renal function (WRF) in acute heart failure.

Methods And Results: We retrospectively analyzed 787 patients with acute heart failure for the relationship between changes in serum creatinine and biomarkers including brain natriuretic peptide, high sensitivity cardiac troponin I, galectin 3, serum neutrophil gelatinase-associated lipocalin, and urine neutrophil gelatinase-associated lipocalin. WRF was defined as an increase of greater than or equal to 0.

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Resuscitation of cardiac arrest in coronavirus disease 2019 (COVID-19) patients places the healthcare staff at higher risk of exposure to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Unfortunately, COVID-19 status is unknown in most patients presenting to the emergency department (ED), and therefore special attention must be given to protect the healthcare staff along with the other patients. This is particularly true for out-of-hospital cardiac arrest patients who are transported to the ED.

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Introduction: While numerous studies have found emergency department (ED) lactate levels to be associated with increased in-hospital mortality, little information is available on the role age plays in this association. This study investigates whether age is a necessary variable to consider when using lactate levels as a marker of prognosis and a guide for management decisions in the ED.

Methods: This was a retrospective cohort study in an urban, tertiary-care teaching hospital.

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Background: The observed incidence of type 2 myocardial infarction (T2MI) is expected to increase with the implementation of increasingly sensitive cTn assays. However, it remains to be determined how to diagnose, risk-stratify, and treat patients with T2MI. We aimed to discriminate and risk-stratify T2MI using biomarkers.

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Aims: Concentrations of insulin-like growth factor binding protein-7 (IGFBP7) have been linked to abnormal cardiac structure and function in patients with chronic heart failure (HF), but cardiovascular correlates of the biomarker in patients with more acute presentations are lacking. We aimed to determine the relationship between IGFBP7 concentrations and cardiac structure and to evaluate the impact of IGFBP7 on the diagnosis of acute HF among patients with acute dyspnoea.

Methods And Results: In this pre-specified subgroup analysis of the International Collaborative of N-terminal pro-B-type Natriuretic Peptide Re-evaluation of Acute Diagnostic Cut-Offs in the Emergency Department (ICON-RELOADED) study, we included 271 patients with and without acute HF.

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