Publications by authors named "Mark Vollenweider"

Unlabelled: A 51-year-old male with uncontrolled asthma and recent convalescence from severe acute respiratory syndrome coronavirus-2c pneumonia presented with cough, dyspnea, and chest pain. Evaluation revealed significant peripheral eosinophilia, elevated troponin, and biventricular failure resulting in cardiogenic shock. He was diagnosed with eosinophilic myocarditis and was subsequently started on high-dose steroids.

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Rationale: This is the first multicenter randomized controlled trial to evaluate the effectiveness and safety of Zephyr Endobronchial Valve (EBV) in patients with little to no collateral ventilation out to 12 months.

Objectives: To evaluate the effectiveness and safety of Zephyr EBV in heterogeneous emphysema with little to no collateral ventilation in the treated lobe.

Methods: Subjects were enrolled with a 2:1 randomization (EBV/standard of care [SoC]) at 24 sites.

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Purpose: To describe the first use of the commercially available Calypso 4D Localization System in the lung.

Methods And Materials: Under an institutional review board-approved protocol and an investigational device exemption from the US Food and Drug Administration, the Calypso system was used with nonclinical methods to acquire real-time 4-dimensional lung tumor tracks for 7 lung cancer patients. The aims of the study were to investigate (1) the potential for bronchoscopic implantation; (2) the stability of smooth-surface beacon transponders (transponders) after implantation; and (3) the ability to acquire tracking information within the lung.

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Context: Influenza vaccination lowers, but does not eliminate, the risk of influenza. Making a reliable, rapid clinical diagnosis is essential to appropriate patient management that may be especially important during shortages of antiviral agents caused by high demand.

Objectives: To systematically review the precision and accuracy of symptoms and signs of influenza.

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