POTS is a chronic autonomic disorder characterized by excessive orthostatic tachycardia and multisystem symptoms that affects an estimated 0.1% to 1% of the US population. Author Satish Raj, MD, MSCI, of University of Calgary Cumming School of Medicine joins JAMA Deputy Editor Kristin Walter, MD, MS, to discuss current evidence about the pathophysiology, diagnosis, and management of POTS.

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• Postural Orthostatic Tachycardia Syndrome (POTS)

Naltrexone, acamprosate, disulfiram, and topiramate are effective but underused medications for treatment of alcohol use disorder. Author Stephen Holt, MD, MS, of Yale School of Medicine joins JAMA Deputy Editor Kristin Walter, MD, MS, to discuss first-line pharmacotherapy for alcohol use disorder and important safety, efficacy, and hospital initiation considerations.

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• Medications for Alcohol Use Disorder

Circulating tumor DNA (ctDNA)(liquid biopsies) can help monitor cancer progression, detect residual cancer after treatment, and identify genetic changes within cancer cells that could affect treatment response. Author Ben Ho Park, MD, PhD, of the Vanderbilt-Ingram Cancer Center discusses current evidence regarding use of liquid biopsies in management of cancer with JAMA Deputy Editor Mary McGrae McDermott, MD.

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• Liquid Biopsies for Cancer
• Applications of Liquid Biopsy for Surgical Patients With Cancer