We report a case of cardiac arrest due to asphyxia caused by coronavirus disease 2019 (COVID-19) in a patient with no history of tracheal intubation but with a history of subglottic stenosis. A 54-year-old man suffered a cardiac arrest at home. The patient had tracheal stenosis; therefore, it was difficult to intubate. The patient had COVID-19, which was presumed to have aggravated the existing tracheal stenosis and caused asphyxiation. The patient died seven days later. This is, to our knowledge, the first report of a patient with subglottic stenosis potentially aggravated by COVID-19, resulting in asphyxia-related cardiopulmonary arrest. The patient could not be saved, but emergency physicians should be aware that airway obstruction can be caused by viral infections, including severe acute respiratory syndrome coronavirus 2 infections. Physicians should consider the difficulty in performing oral intubation and cricothyrotomy and be aware of alternative methods to secure the airway.
In this report, we present a case in which intestinal and abdominal wall emphysema was observed, but the patient was unconscious due to hypothermia, making it difficult to determine the indication for surgery. Pneumatosis intestinalis (PI) is a pathological condition characterized by the presence of gas within the walls of the small or large intestine and is considered a surgical emergency when accompanied by manifestations of peritonitis on abdominal examination, metabolic acidosis, and lactic acid levels above 2.0 mmol/L. In this specific case, the patient's blood draw results indicated the requirement for an emergency laparotomy; however, the patient's unconscious state became a challenge to make decision on informed consenting. The case illustrates the difficulties encountered in making treatment decisions in critically ill patients and the necessity for thorough assessments and close monitoring of vital signs in such patients.
We report a case of a 25-year-old man who presented to the emergency department with respiratory distress after attempting suicide using burning charcoal briquettes. Charcoal briquette suicide is a method of suicide by carbon monoxide poisoning through inhalation of carbon monoxide produced when charcoal briquettes are burned. The patient had a history of childhood asthma, but he was not on any scheduled treatment regimen. Upon admission, he had an elevated respiratory rate, hypoxic respiratory failure, and bilateral respiratory wheezing. Computed tomography showed significant mottled and infiltrated shadows in the upper lobes of both lungs, and hypersensitivity pneumonitis was suspected. Sputum culture, autoantibodies such as antinuclear antibodies, and other diagnostic tests ruled out other conditions. The patient was treated with antibacterial agents and steroids. Imaging tests showed improvement over time. He was discharged on the seventh day. Charcoal briquette is a rare antigen that can potentially trigger hypersensitivity pneumonitis. Physicians should consider hypersensitivity pneumonitis as the differential diagnosis of respiratory failure after a charcoal-burning suicide attempt.
Biguanides may cause lactic acidosis (LA) in elderly patients. We report three cases of LA after the administration of biguanides. Case 1 was an 85-year-old man with no hepatic dysfunction who was discharged, case 2 was a 67-year-old man with no hepatic dysfunction who was discharged, and case 3 was a 77-year-old woman with hepatic dysfunction who died. Therefore, caution should be exercised in administering biguanides to elderly patients with hepatic dysfunction.
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