Background The coronavirus disease of 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). While systemic inflammation and pulmonary complications can result in significant morbidity and mortality, cardiovascular complications may also occur. Objective This brief report evaluates cardiovascular complications in the setting of COVID-19 infection. Discussion The current COVID-19 pandemic has resulted in over one million infected worldwide and thousands of death. The virus binds and enters through angiotensin-converting enzyme 2 (ACE2). COVID-19 can result in systemic inflammation, multiorgan dysfunction, and critical illness. The cardiovascular system is also affected, with complications including myocardial injury, myocarditis, acute myocardial infarction, heart failure, dysrhythmias, and venous thromboembolic events. Current therapies for COVID-19 may interact with cardiovascular medications. Conclusions Emergency clinicians should be aware of these cardiovascular complications when evaluating and managing the patient with COVID-19.

Cardiovascular complications in COVID-19.

An agent-based model to evaluate the COVID-19 transmission risks in facilities.

The outbreak of the novel coronavirus disease 2019 (COVID-19) has emerged to be the biggest global health threat worldwide, which has now infected over 1.7 million people and claimed more than 100,000 lives around the world. Under these unprecedented circumstances, there are no well-established guidelines for cancer patients. The risk for serious disease and death in COVID-19 cases increases with advancing age and presence of comorbid health conditions. Since the emergence of the first case in Wuhan, China, in December 2019, tremendous research efforts have been underway to understand the mechanisms of infectivity and transmissibility of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), a fatal virus responsible for abysmal survival outcomes. To minimize the mortality rate, it becomes prudent to identify symptoms promptly and employ treatments appropriately. Even though no cure has been established, multiple clinical trials are underway to determine the most optimal strategy. Managing cancer patients under these circumstances is rather challenging, given their vulnerable status and the aggressive nature of their underlying disease. In this comprehensive review, we discuss the impact of COVID-19 on health and the immune system of those affected, reviewing the latest treatment approaches and ongoing clinical trials. Additionally, we discuss challenges faced while treating cancer patients and propose potential approaches to manage this vulnerable population during this pandemic.

/pdf/covid-19-and-cancer-a-comprehensive-review-42hz0zpz5u.pdf

COVID-19 and Cancer: a Comprehensive Review.

Background Much of the focus regarding the global pandemic of coronavirus disease of 2019 (COVID-19) has been on the cardiovascular, pulmonary, and hematologic complications. However, neurologic complications have arisen as an increasingly recognized area of morbidity and mortality. Objective This brief report summarizes the neurologic complications associated with COVID-19 with an emphasis on the emergency medicine clinician. Discussion COVID-19 has infected over 3.5 million people and killed over 240,000 people worldwide. While pulmonary complications are profound, the neurologic system is also significantly impacted, with complications including acute cerebrovascular events, encephalitis, Guillain-Barre syndrome, acute necrotizing hemorrhagic encephalopathy, and hemophagocytic lymphohistiocytosis. Additionally, patients on immunosuppressive medications for pre-existing neurologic issues are at an increased risk for complications with COVID-19 infection, and many of the currently proposed COVID-19 therapies can interact with these medications. Conclusions When caring for COVID-19 patients, emergency medicine clinicians should be aware of the neurologic complications from COVID-19.

/pdf/neurologic-complications-of-covid-19-2quxpk3g0r.pdf

Neurologic complications of COVID-19.

Since the outbreak of the coronavirus disease 2019 (COVID-19) pandemic, there have been a few variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), one of which is the Omicron variant (B.1.1.529). The Omicron variant is the most mutated SARS-CoV-2 variant, and its high transmissibility and immune evasion ability have raised global concerns. Owing to its enhanced transmissibility, Omicron has rapidly replaced Delta as the dominant variant in several regions. However, recent studies have shown that the Omicron variant exhibits reduced pathogenicity due to altered cell tropism. In addition, Omicron exhibits significant resistance to the neutralizing activity of vaccines, convalescent serum, and most antibody therapies. In the present review, recent advances in the molecular and clinical characteristics of the infectivity, pathogenicity, and immune evasion of Omicron variant was summarized, and potential therapeutic applications in response to Omicron infection were discussed. Furthermore, we highlighted potential response to future waves and strategies to end the pandemic. 

/pdf/sars-cov-2-omicron-variant-recent-progress-and-future-rymk2gdz.pdf

SARS-CoV-2 Omicron variant: recent progress and future perspectives

Introduction Rapid worldwide spread of Coronavirus Disease 2019 (COVID-19) has resulted in a global pandemic. Objective This review article provides emergency physicians with an overview of the most current understanding of COVID-19 and recommendations on the evaluation and management of patients with suspected COVID-19. Discussion Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for causing COVID-19, is primarily transmitted from person-to-person through close contact (approximately 6 ft) by respiratory droplets. Symptoms of COVID-19 are similar to other viral upper respiratory illnesses. Three major trajectories include mild disease with upper respiratory symptoms, non-severe pneumonia, and severe pneumonia complicated by acute respiratory distress syndrome (ARDS). Emergency physicians should focus on identifying patients at risk, isolating suspected patients, and informing hospital infection prevention and public health authorities. Patients with suspected COVID-19 should be asked to wear a facemask. Respiratory etiquette, hand washing, and personal protective equipment are recommended for all healthcare personnel caring for suspected cases. Disposition depends on patient symptoms, hemodynamic status, and patient ability to self-quarantine. Conclusion This narrative review provides clinicians with an updated approach to the evaluation and management of patients presenting to the emergency department with suspected COVID-19.

/pdf/coronavirus-disease-covid-19-a-primer-for-emergency-1ixhrfe8w4.pdf

Coronavirus Disease (COVID-19): A primer for emergency physicians.

Coronavirus disease of 2019 (COVID-19) has resulted in millions of cases worldwide. As the pandemic has progressed, the understanding of this disease has evolved.This first in a two-part series on COVID-19 updates provides a focused overview of the presentation and evaluation of COVID-19 for emergency clinicians.COVID-19, caused by Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2), has resulted in significant morbidity and mortality worldwide. Several variants exist, including a variant of concern known as Delta (B.1.617.2 lineage) and the Omicron variant (B.1.1.529 lineage). The Delta variant is associated with higher infectivity and poor patient outcomes, and the Omicron variant has resulted in a significant increase in infections. While over 80% of patients experience mild symptoms, a significant proportion can be critically ill, including those who are older and those with comorbidities. Upper respiratory symptoms, fever, and changes in taste/smell remain the most common presenting symptoms. Extrapulmonary complications are numerous and may be severe, including the cardiovascular, neurologic, gastrointestinal, and dermatologic systems. Emergency department evaluation includes focused testing for COVID-19 and assessment of end-organ injury. Imaging may include chest radiography, computed tomography, or ultrasound. Several risk scores may assist in prognostication, including the 4C (Coronavirus Clinical Characterisation Consortium) score, quick COVID Severity Index (qCSI), NEWS2, and the PRIEST score, but these should only supplement and not replace clinical judgment.This review provides a focused update of the presentation and evaluation of COVID-19 for emergency clinicians. 

https://doi.org/10.1016/j.ajem.2022.01.028

Clinical update on COVID-19 for the emergency clinician: Presentation and evaluation

Monkeypox is an emerging viral disease that has been declared a global health emergency. While this disease has been present for over 50 years, the recent surge in cases and expanding knowledge of this has prompted a need for a focused review for practicing clinicians.This narrative review provides a focused overview of the epidemiology, presentation, evaluation, and management of monkeypox for emergency clinicians.Monkeypox is an orthopoxvirus endemic to central and western Africa. An outbreak in May and June 2022 across Asia, Europe, North America, and South America was declared a global health emergency in July 2022. The disease can be transmitted via contact with an infected animal or human, as well as contact with a contaminated material. The disease presents with a prodromal flu-like illness and lymphadenopathy. A rash spreading in a centrifugal manner involving the oral mucosa, face, palms, and soles is typical. Lesions progress along various stages. Complications such as bacterial skin infection, pneumonitis, ocular conditions, and encephalitis are uncommon. Confirmation typically includes polymerase chain reaction testing. The majority of patients improve with symptomatic therapy, and as of July 2022, there are no United States Food and Drug Administration-approved treatments specifically for monkeypox. However, antiviral treatment should be considered for several patient populations at risk for severe outcomes.An understanding of the presentation, evaluation, and management of monkeypox is essential for emergency clinicians to ensure appropriate diagnosis and treatment of this emerging disease. 

https://doi.org/10.1016/j.ajem.2022.08.026

Monkeypox: A focused narrative review for emergency medicine clinicians

Coronavirus disease of 2019 (COVID-19) has resulted in millions of cases worldwide. As the pandemic has progressed, the understanding of this disease has evolved.This is the second part in a series on COVID-19 updates providing a focused overview of the medical management of COVID-19 for emergency and critical care clinicians.COVID-19, caused by Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2), has resulted in significant morbidity and mortality worldwide. A variety of medical therapies have been introduced for use, including steroids, antivirals, interleukin-6 antagonists, monoclonal antibodies, and kinase inhibitors. These agents have each demonstrated utility in certain patient subsets. Prophylactic anticoagulation in admitted patients demonstrates improved outcomes. Further randomized data concerning aspirin in outpatients with COVID-19 are needed. Any beneficial impact of other therapies, such as colchicine, convalescent plasma, famotidine, ivermectin, and vitamins and minerals is not present in reliable medical literature. In addition, chloroquine and hydroxychloroquine are not recommended.This review provides a focused update of the medical management of COVID-19 for emergency and critical care clinicians to help improve care for these patients. 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8956349

Clinical update on COVID-19 for the emergency and critical care clinician: Medical management

Emergency clinicians utilize local anesthetics for a variety of procedures in the emergency department (ED) setting. Local anesthetic systemic toxicity (LAST) is a potentially deadly complication.This narrative review provides emergency clinicians with the most current evidence regarding the pathophysiology, evaluation, and management of patients with LAST.LAST is an uncommon but potentially life-threatening complication of local anesthetic use that may be encountered in the ED. Patients at extremes of age or with organ dysfunction are at higher risk. Inadvertent intra-arterial or intravenous injection, as well as repeated doses and higher doses of local anesthetics are associated with greater risk of developing LAST. Neurologic and cardiovascular manifestations can occur. Early recognition and intervention, including supportive care and intravenous lipid emulsion 20%, are the mainstays of treatment. Using ultrasound guidance, aspirating prior to injection, and utilizing the minimal local anesthetic dose needed are techniques that can reduce the risk of LAST.This focused review provides an update for the emergency clinician to manage patients with LAST. 

Summer A Chavez

Papers

Coronavirus Disease (COVID-19): A primer for emergency physicians.

Clinical update on COVID-19 for the emergency clinician: Presentation and evaluation

Monkeypox: A focused narrative review for emergency medicine clinicians

Clinical update on COVID-19 for the emergency and critical care clinician: Medical management

Local anesthetic systemic toxicity: A narrative review for emergency clinicians.