• Saina Attaran, Andrew Chukwuemeka, and Jon R Anderson.
• Department of Cardiothoracic Surgery, Hammersmith Hospital, Imperial College, London, UK. saina.attaran@nhs.net
• Interact Cardiovasc Thorac Surg. 2013 Jul 1; 17 (1): 163-5.

AbstractA best evidence topic in cardiothoracic surgery was written according to a structured protocol. The question addressed was 'Can lungs be taken for transplantation from donors with a significant smoking history?’. Five papers were found using the reported search that represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. These studies compared the outcome and survival between patients who receive lungs from smokers with those receiving non-smoker lungs. None of these studies were randomized controlled trials. They retrospectively analysed a cohort of patients undergoing lung transplantation for the past 10 years. These studies showed worse outcomes in the early postoperative period, such as longer intensive care unit stay, longer ventilation time and higher early postoperative mortality, with lungs harvested from smokers. Two studies also demonstrated a worse long-term outcome in recipients of lungs from smokers, whereas the other two showed worse results during the early postoperative period only. These latter two studies reported similar survival rates after 3 months and up to 3 years in recipients receiving smoker vs non-smoker lungs. One study, however, showed a better 5-year survival with smoker lungs compared with non-smokers, although in this study, lungs from heavy smokers showed the worse outcome. Despite the difference in long-term results and outcome reported by these authors, all of these studies unanimously indicate that lungs from smokers should not be rejected, as survival in these patients receiving smoker lungs is still significantly higher in 3 and 5 years compared with that in those who remain on the transplant waiting list. In conclusion, the current evidence in the literature suggests that lungs from smokers can be used for transplantation. Patients should, however, be fully informed of the risks involved with these lungs and the worse outcome compared with those receiving non-smoker lungs.

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