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A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was whether the administration of amiodarone is safe in patients undergoing lung resection either for prophylaxis or treatment of de novo postoperative atrial fibrillation (POAF). A total of 30 papers were identified, of which 13 represented the best evidence to answer the clinical question. The authors, journal, date, study type, country of publication, patient demographics, relevant outcomes and results were tabulated. Among the identified papers, there were 2 meta-analyses, 1 best evidence topic and 3 randomized studies, while the remainder were retrospective. When considering perioperative amiodarone for the prophylaxis of POAF, 3 randomized studies reported no significantly increased postoperative complications or amiodarone-related side effects. Mortality and length of hospital stay were similar in patients receiving amiodarone compared with either no amiodarone or other prophylactic antiarrhythmic medication. When considering amiodarone for the treatment of POAF, 1 study reported a significantly increased incidence of ARDS after anatomical lung resection (P < 0.001). Two case series reported that patients developing POAF after lung resection and managed with amiodarone also had either none or acceptable rates of side effects, with no serious respiratory complications. Two retrospective and 1 prospective observational study reported that amiodarone used either for the treatment of POAF, or for prophylaxis against it, had similar rates of postoperative respiratory complications, length of hospital stay and mortality, compared with either no treatment or treatment with other prophylactic or therapeutic agents. In accordance with the Society of Thoracic Surgeons guidelines on prophylaxis and management of POAF in general thoracic surgery, these data suggest that amiodarone is a safe agent for the management of POAF after lung resection. Careful monitoring in patients treated with amiodarone after pneumonectomy should be considered because development of acute lung toxicity can increase length of hospital stay, morbidity and mortality. Further studies may also be needed to identify the subset of pneumonectomy patients at risk of pulmonary toxicity after use of amiodarone.

hENT1 (p¼0.001) and RMM1 (p¼0.012) predict survival in patients with APM treated with Gem based regimens.Conclusion: hENT1 mRNA expression carries prognostic information in patients with APM and combined with RRM1 holds promise as a predictive biomarkers in gemcitabine treated patients.

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