The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2020
Influence of the donor history of tobacco and marijuana smoking on early and intermediate lung transplant outcomes.
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Okahara Shuji, Levvey Bronwyn, McDonald Mark, D'Costa Rohit, Opdam Helen, Pilcher David V, Paul Eldho, Snell Gregory I
Аннотация
BACKGROUND: Donor smoking histories are common in the lung donor pool, which are known to adversely affect post-lung transplant (LTx) outcomes. However, no evidence is available about smoking status (current/former), cumulative dose effect, or the combined effect of tobacco with marijuana.
METHODS: We retrospectively reviewed our local state-based donation organization records and subsequent LTx recipient outcomes. The primary outcome was 3-year graft survival, with cause of death as secondary outcomes. Univariate and multivariate Cox regression analyses were used to explore smoking status or cumulative dose effect.
RESULTS: Between 2014 and 2018, 304 LTxs were performed: 133 (44%) LTxs were from never-smoker donors, 68 (22%) from former-smoker donors, and 103 (34%) from current-smoker donors. Of the current-smoker donors, 48% had a marijuana use history. There was no significant difference in early mortality, although recipients who received transplants from current-smoker donors had a lower 3-year graft survival than those who received transplants from never smokers. Multivariate modeling showed that current tobacco smoking (hazard ratio: 2.13, 95% CI: 1.13-3.99) and a more than 5-year weekly marijuana use (hazard ratio: 2.97, 95% CI: 1.29-6.87) were independent donor factors affecting graft survival. Chronic lung allograft dysfunction accounted for a higher proportion of the causes of death within 3 years after LTx where lungs from current/former smokers were utilized compared with those from never smokers (chronic lung allograft dysfunction-cause mortality: 11%, 7%, 0%, respectively).
CONCLUSIONS: More than 50% of LTx donors had smoking histories. Current tobacco use or more than 5-year weekly marijuana smoking history adversely affected 3-year graft survival. Our findings support the importance of obtaining a detailed donor tobacco and marijuana smoking history.
METHODS: We retrospectively reviewed our local state-based donation organization records and subsequent LTx recipient outcomes. The primary outcome was 3-year graft survival, with cause of death as secondary outcomes. Univariate and multivariate Cox regression analyses were used to explore smoking status or cumulative dose effect.
RESULTS: Between 2014 and 2018, 304 LTxs were performed: 133 (44%) LTxs were from never-smoker donors, 68 (22%) from former-smoker donors, and 103 (34%) from current-smoker donors. Of the current-smoker donors, 48% had a marijuana use history. There was no significant difference in early mortality, although recipients who received transplants from current-smoker donors had a lower 3-year graft survival than those who received transplants from never smokers. Multivariate modeling showed that current tobacco smoking (hazard ratio: 2.13, 95% CI: 1.13-3.99) and a more than 5-year weekly marijuana use (hazard ratio: 2.97, 95% CI: 1.29-6.87) were independent donor factors affecting graft survival. Chronic lung allograft dysfunction accounted for a higher proportion of the causes of death within 3 years after LTx where lungs from current/former smokers were utilized compared with those from never smokers (chronic lung allograft dysfunction-cause mortality: 11%, 7%, 0%, respectively).
CONCLUSIONS: More than 50% of LTx donors had smoking histories. Current tobacco use or more than 5-year weekly marijuana smoking history adversely affected 3-year graft survival. Our findings support the importance of obtaining a detailed donor tobacco and marijuana smoking history.