Can Vaping Help with Smoking Cessation? Understanding the Risks of Dual Use - Frankly Speaking Ep 433

·11 min·1 clip

Studies show vaping immediately decreases oxygen saturation and arterial flow, increasing vascular risk.

The episode begins with host Dr. Frank Domino introducing the topic and promoting the PrimeMed East conference. He presents a clinical vignette about patient Diana, who has hypertension and reduced her cigarette smoking from two packs to half a pack daily by starting to vape. Dr. Susan Feeney joins to discuss the latest evidence. She cites the National Health Interview Survey, noting 4.5% of adults use e-cigarettes, with highest use among 18-24 year olds. She explains dual use, where individuals smoke cigarettes and vape simultaneously, is common in younger age groups. The conversation turns to smoking cessation efficacy, referencing a living systematic review by Cochrane that included 78 randomized controlled trials from the US, UK, and Italy. This review found e-cigarettes lead to higher smoking cessation rates at six months compared to nicotine replacement therapy or behavioral support. However, Dr. Feeney notes the review did not address dual use. She discusses a study by Pissinger and Rasmussen that analyzed 49 studies on dual use, highlighting low certainty due to heterogeneity but revealing prevalence data: nearly all vapers in South Korea dual use, 60% in the US, and 40% in the UK. The key concern is that dual users often relapse to exclusive cigarette use or continue both without quitting. Dr. Feeney presents physiological risks, citing studies showing immediate endothelial response, decreased oxygen saturation, and reduced arterial flow upon vaping inhalation. She concludes dual use may be more harmful than using either product alone. In the clinical application, Dr. Domino asks how to advise Diana. Dr. Feeney recommends congratulating her on reducing cigarettes but counseling her on the risks of dual use, especially given her hypertension. She suggests creating a strategy to stop either vaping or cigarettes, using nicotine replacement or similar aids. The episode ends with a practice pointer to assess smoking and vaping status, discuss dual use risks, and recommend FDA-approved cessation tools, followed by a preview of the next episode on butter and mortality.

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