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During the First World War, the territories that constituted the front line in North East Italy were the theaters of intense shelling. The military tactics of the time involved the use not only of conventional ammunition but also of special ammunition containing asphyxiating and blistering compounds. However, the technology of the time did not guarantee a high explosion rate, leaving a considerable quantity of unexploded material on the ground. Although more than 100 years have passed since the end of the Great War, it is still common to find unexploded ordnance in the areas that were the site of combat. The demining campaign is still underway by the bomb squad of the Italian army with the medical support of the Military Corps of the Italian Red Cross. This case report reports the case of a young patient who came into contact with a vesicant chemical bomb along the Piave River and was subsequently admitted to the Major Burns Center of the Padua Hospital, where he was treated until full recovery. Although it is a rather rare eventuality, experiences like this provide the opportunity for the admitting surgeon to promptly and competently manage patients exposed to chemical warfare., (© The Association of Military Surgeons of the United States 2024. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site–for further information please contact journals.permissions@oup.com.)

Introduction: Choking agent exposure, among them chlorine gas, occurs in household or industrial accidents, chemical warfare and terrorist attacks., Aims: Review of published animal and human data regarding the history, pathophysiology, clinical effects and management of chlorine exposure., Pathophysiology: Highly soluble agents cause quick upper respiratory tract symptoms. Chlorine gas has a medium solubility, also causing delayed lower airway symptoms, mainly due to its oxidizing potential by releasing hypochlorous and hydrochloric acid, but also by interacting with Transient Receptor Potential channels., Symptoms: Eyes may show conjunctival injection, abrasions and corrosions. Burns of the oronasal mucosa and trachea can occur. Dyspnea, bronchospasm and possible retrosternal pain occur frequently. Glottis edema or laryngospasm are acute life-threatening emergencies. Chlorine gas can cause toxic pneumonitis, lung edema and acute respiratory distress syndrome (ARDS)., Management: General management includes physical examination, pulse oximetry and arterial blood gases. Eyes should be irrigated, humidified oxygen and inhalative bronchodilators administered. An EKG, cardiac enzymes and complete-blood-count should be obtained if there is retrosternal pain. Routine chest x-ray is not recommended - except if pulmonary edema is suspected. Laryngoscopy should be performed if glottis edema is suspected. Sodium bicarbonate inhalation after chlorine gas inhalation is discussed controversially. Mechanical ventilation with continuous-positive-airway-pressure or intubation/tracheotomy with high positive-end-expiratory-pressure may be necessary. Glucocorticoids for prevention of pulmonary edema should be applied restrictively. Prophylactic antibiotics are not recommended. In severe ARDS, extracorporeal membrane oxygenation (ECMO) can be considered., Conclusion: Treatment is mainly symptom oriented. New and promising therapies are in development., (Copyright © 2019 Elsevier B.V. All rights reserved.)