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Background: Venous thromboembolism (VTE) is a common and potentially fatal complication in patients with lung cancer. This study aimed to develop and validate a risk score for early prediction of VTE in these patients. Methods: Four hundred and one patients with lung cancer from three pulmonology departments hospitalized between January 2011 and December 2021 were retrospectively assessed. The population was divided into two groups: a Development Group (182 patients) and a validation group (199 patients). In the development group, the risk score system was developed, via univariate and multivariate analyses, based on demographic and clinicopathological variables; it was then validated in the validation group. Results: The incidence of VTE was 26.8% in the development group. It was 25.8%, and 27.6% in the internal and external validation groups, respectively. Hemoglobin level Conclusions: This risk score requires prospective validation studies on a nationwide scale in order to use it as a valid tool for the prevention of VTE in lung cancer.

Reexpansion pulmonary edema is a rare and potentially lethal complication with a 15 to 20% mortality. We report one case of pulmonary edema after evacuation of spontaneous right pneumothorax The pathophysiology of reexpansion pulmonary edema remains obscure; mechanical and inflammatory processes (production of Inerleukin 8--and Leukotrienne B4) seem incriminated. Duration and seventy of lung collapse and the rate of reexpansion appear to be the main causes justifying preventive measures. Curative treatment is based on oxygenation and lower aspiration pressure.