Publications by authors named "Syed Khan"

Background: Corticosteroids improve survival in hospitalized COVID-19 patients needing supplemental oxygen. However, concern exists about increased risk of secondary infections. This study investigated the impact of early corticosteroids use on these infections.

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Background: The benefit of Inhaled nitric oxide (iNO) therapy in the setting of COVID-19-related ARDS is obscure. We performed a multicenter retrospective study to evaluate the impact of iNO on patients with COVID-19 who require respiratory support.

Methods: This retrospective multicenter study included COVID-19 patients enrolled in the SCCM VIRUS COVID-19 registry who were admitted to different Mayo Clinic sites between March 2020 and June 2022 and required high-flow nasal cannula (HFNC), non-invasive ventilation (NIV), or invasive mechanical ventilation (IMV).

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Article Synopsis
  • The obesity paradox indicates that obese patients with Chronic Obstructive Pulmonary Disease Exacerbation (COPDE) may actually fare better, but malnutrition can lead to poorer outcomes among these patients.
  • This study examined the implications of malnutrition in both obese and non-obese COPD patients hospitalized with COPDE, utilizing data from the National Inpatient Sample from 2017 to 2020.
  • Findings revealed that malnourished patients had significantly higher rates of mortality, increased need for invasive mechanical ventilation, longer hospital stays, and greater total charges compared to non-malnourished patients, highlighting malnutrition as a critical risk factor.
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To develop a circular economy (CE) and protect the environment, waste recycling (WR) is crucial. This study examines WR research conducted over the past two decades to identify the most significant advancements and promising areas for future research. The following challenges were handled through text mining, content, and bibliometrics analysis: How has CE influenced the evolution of WR research? What are the CE's most important WR research trends and themes? What directions could future research on WR take regarding the CE transition? Using 1118 articles from the Scopus database journal, bibliometric networks were made and analyzed.

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Background: The severe respiratory manifestations observed in severe coronavirus disease 2019 (COVID-19) cases are often associated with an excessive inflammatory response. Dexamethasone, a synthetic glucocorticoid, exerts its anti-inflammatory effects by inhibiting the transcription of pro-inflammatory genes and suppressing the activity of various immune cells. This mechanism has implications for mitigating the cytokine storm observed in severe COVID-19 cases.

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  • Angioedema is a condition that causes swelling in deep skin layers and can affect various body regions, with serious implications for the respiratory and gastrointestinal systems.
  • Tissue plasminogen activator (tPA), a drug used for treating strokes and other emergencies, can cause angioedema in a small percentage of patients.
  • A case study of a 79-year-old man revealed that after receiving tPA for stroke symptoms, he developed angioedema, which was successfully treated with corticosteroids and antihistamines, highlighting the importance of monitoring for this rare side effect.
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The study aims to examine the advantages of utilizing big data analytics (BDA) on circular economy (CE) dual systems, which are closed-loop supply chain (CLSC) and the reverse omnichannel (ROC), aiming to enhance sustainable firm performance (SFP) of the small and medium based enterprises (SMEs). The product return knowledge (PRK) can reinforce the proposed network of relationships and facilitate the approach of active returns in CE. Using the structural equation model (SEM) in AMOS v24, the researchers examined the hypotheses using data from a simple random sample of 232 SMEs in Pakistan.

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Stone heart syndrome has a complex interaction with digoxin toxicity, where, theoretically, the administration of intravenous calcium can worsen a patient's condition. Research on this subject is conflicting, so it is imperative to approach it cautiously.

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Blood transfusion is a common therapeutic intervention in hospitalized patients. There are numerous indications for transfusion, including anemia and coagulopathy with deficiency of single or multiple coagulation components such as platelets or coagulation factors. Nevertheless, the practice of transfusion in critically ill patients has been controversial mainly due to a lack of evidence and the need to consider the appropriate clinical context for transfusion.

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Discharging patients directly to home from the intensive care unit (ICU) is becoming a new trend. This review examines the feasibility, benefits, challenges, and considerations of directly discharging ICU patients. By analyzing available evidence and healthcare professionals' experiences, the review explores the potential impacts on patient outcomes and healthcare systems.

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Article Synopsis
  • Pulmonary hypertension (PH) increases blood pressure in pulmonary arteries, leading to serious complications like low oxygen delivery, and this study examines its effects on patients with congestive heart failure after a heart attack (STEMI).
  • Researchers analyzed data from nearly 27,000 STEMI patients (with 95 having group II PH) to evaluate mortality rates and other health outcomes using the National Inpatient Sample database from 2017 to 2020.
  • The findings indicated that patients with GIIPH had significantly higher in-hospital mortality rates and longer hospital stays compared to those without PH, underscoring the negative impact of GIIPH on health and economic outcomes.
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Objective: To describe the characteristics of COVID-19 patients with pneumothorax and pneumomediastinum (PTX/PM) and their association with patient outcomes.

Patients And Methods: Adults admitted to five Mayo Clinic hospitals with COVID-19 between 03/2020-01/2022 were evaluated. PTX/PM was defined by imaging.

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Purpose: To explore the association of estimated plasma volume (ePV) and plasma volume status (PVS) as surrogates of volume status with new-onset AKI and in-hospital mortality among hospitalized COVID-19 patients.

Materials And Methods: We performed a retrospective multi-center study on COVID-19-related ARDS patients who were admitted to the Mayo Clinic Enterprise health system. Plasma volume was calculated using the formulae for ePV and PVS, and longitudinal analysis was performed to find the association of ePV and PVS with new-onset AKI during hospitalization as the primary outcome and in-hospital mortality as a secondary outcome.

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Objective: To assess antibiotics impact on outcomes in COVID-19 pneumonia patients with varying procalcitonin (PCT) levels.

Methods: This retrospective cohort study included 3665 COVID-19 pneumonia patients hospitalized at five Mayo Clinic sites (March 2020 to June 2022). PCT levels were measured at admission.

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Purpose Of Review: The world is proliferating rapidly, with science and technology advancing at an incredible rate. These advances have, however, ushered in an age with a rise in social isolation (SI) and loneliness. SI is an objective term that refers to lacking social contact or support.

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  • Hypocomplementemic urticarial vasculitis syndrome (HUVS) is a rare disorder that features urticarial skin lesions caused by immune complexes and is marked by low complement levels and systemic symptoms.
  • A patient with abdominal pain and skin rash underwent thorough testing, including a skin biopsy, revealing angioedema, oral ulcers, low complement levels, leukocytic vasculitis, and eosinophilia, which confirmed the HUVS diagnosis.
  • The case emphasizes the need to accurately recognize HUVS to differentiate it from other skin diseases, enabling better patient management.
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While obesity is associated with an increased risk of venous thromboembolism (VTE), there is some data to suggest that higher BMI is also associated with decreased all-cause mortality in patients with a pulmonary embolism (PE). Using PE Response Team (PERT) activation data from a large tertiary hospital between 27 October 2020 and 28 August 2023, we constructed a multivariate Cox proportional hazards model to assess the association between obesity as a dichotomous variable (defined as BMI ≥ 30 vs. BMI 18.

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The current study was designed to investigate the potential of a synthetic therapeutic agent for better management of pain and inflammation, exhibiting minimal to non-existent ulcerogenic effects. The effect of 1-(2-chlorobenzoyl)-3-(2,3-dichlorophenyl) thiourea was assessed through model systems of nociception and anti-inflammatory activities in mice. In addition, the ulcerogenic potential was evaluated in rats using the NSAID-induced pyloric ligation model, followed by histopathological and biochemical analysis.

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Cardiac amyloidosis is caused by amyloid fibrils that deposit in the myocardial interstitium, causing restrictive cardiomyopathy and eventually death. The electromechanical, inflammatory, and autonomic changes due to amyloid deposition result in arrhythmias. Atrial fibrillation is by far the most common arrhythmia.

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  • Down syndrome (DS) patients are at higher risk for severe complications from COVID-19 due to their associated health issues and immune dysfunction, leading to poorer outcomes compared to the general population.* -
  • A systematic review of 17 articles revealed that common symptoms in DS COVID-19 patients included fever, cough, and dyspnea, with many also experiencing gastrointestinal issues; additionally, significant comorbidities like obesity and hypothyroidism were prevalent.* -
  • Most DS patients required longer hospital stays and exhibited specific laboratory abnormalities, and the study found a concerning mortality rate of 40% among the cohort, with higher risk in those over 40 years old, indicating a need for further research.*
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Background: Ventilator-associated pneumonia (VAP) is one of the leading causes of mortality in patients with critical care illness. Since obesity is highly prevalent, we wanted to study its impact on the outcomes of patients who develop VAP.

Methods: Using the National Inpatient Sample (NIS) database from 2017 to 2020, we conducted a retrospective study of adult patients with a principal diagnosis of VAP with a secondary diagnosis with or without obesity according to 10th revision of the International Statistical Classification of Diseases (ICD-10) codes.

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Therapeutic plasma exchange (TPE) is a treatment paradigm used to remove harmful molecules from the body. In short, it is a technique that employs a process that functions partially outside the body and involves the replacement of the patient's plasma. It has been used in the ICU for a number of different disease states, for some as a first-line treatment modality and for others as a type of salvage therapy.

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Objectives: COVID-19 escalated inappropriate antibiotic use. We determined the distribution of pathogens causing community-acquired co-infections, the rate, and factors associated with early empiric antibiotic (EEAB) treatment among hospitalized COVID-19 patients.

Methods: The Society of Critical Care Medicine Discovery Viral Infection and Respiratory Illness Universal Study (VIRUS) COVID-19 Registry including 68,428 patients from 28 countries enrolled between January 2020 and October 2021 were screened.

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