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Rationale Severe alcoholic hepatitis (AH) has a very high mortality rate. Current guidelines recommend oral corticosteroids as first-line agents in individuals with severe AH to reduce short-term mortality. However, systemic corticosteroids have serious adverse effects. In individuals with AH, infection, which is one of the complications of steroid use, can result in serious outcomes, such as acute-on-chronic liver failure. Pneumocystis pneumonia (PCP) is a life-threatening opportunistic infection which may occur when high-dose corticosteroids are prescribed for more than 1 month. Therefore, when high-dose corticosteroids are used, providing PCP prophylaxis is warranted. Although trimethoprim-sulfamethoxazole (TMP-SMX) is the drug of choice for the prophylaxis of PCP, its hepatotoxicity limits its use in patients with severe AH who are on high-dose corticosteroids. Moreover, there is a lack of consensus on which drugs should be used for PCP prophylaxis in individuals with severe AH who are on glucocorticoid treatment. Herein, we report a case of a 43-year-old male with fatal PCP that occurred after the use of corticosteroids for severe AH. Patient concerns A 43-year-old alcoholic man presented with a hematoma on his right leg. His liver function was poor, and he was he was diagnosed with severe AH and treated with oral corticosteroids for 26 days. After glucocorticoid treatment, he developed a productive cough. Diagnoses A sputum PCR test was positive for Pneumocystis jirovecii. Interventions He was initially treated with TMP-SMX and required artificial ventilation. Outcomes He developed disseminated intravascular coagulation and multi-organ failure, and died 10 days after starting TMP-SMX. Lessons To date, prevention of PCP in individuals with severe AH who are on corticosteroids has been overlooked. This case illustrates the need for prophylaxis of PCP in individuals with severe AH taking corticosteroids.

Rationale: Radiofrequency ablation (RFA) is a safe and effective local treatment modality with a low complication rate and is commonly used to treat hepatocellular carcinoma (HCC). The clinical outcome of RFA may be closely related to the location, size, and shape of index tumors, and major complications, including hemorrhage, liver abscess, infarction, visceral organ perforation, hemothorax, pneumothorax, tumoral seeding, and hepatic failure. Cardiac tamponade is a rare and serious life-threatening complication associated with RFA. To date, a review of the medical literature reported 5 cases of cardiac tamponade after RFA for HCC. Herein, we report another case of cardiac tamponade after RFA for HCC in a 56-year-old man. Patient concerns: He had suffered from liver cirrhosis due to alcohol abuse. He had chronic obstructive pulmonary disease. Magnetic resonance imaging showed a 3.0-cm exophytic subcapsular HCC in segment IVa of left hepatic lobe. As the patient was at high risk for surgery because of poor lung function, RFA was selected as the treatment of choice. The index tumor was located in the vicinity of the diaphragm and colon. During RFA procedure, thermal injury to the adjacent diaphragm and colon was minimized by introducing artificial ascites. Bleeding or tumoral seeding was prevented by ablating the electrode track during electrode retraction. Diagnosis: Two hours after RFA, the patient presented with dyspnea, chest discomfort, and low blood pressure (80/60 mm Hg), suggesting cardiac tamponade. Immediate follow-up contrast-enhanced computed tomography image depicted the slightly high attenuated hemopericardium. Transthoracic echocardiography (TTE) showed a moderate amount of pericardial effusion with tamponade and a large hematoma. Interventions: Under fluoroscopy and portable echocardiography guidance, a cardiologist immediately inserted a 7-French pigtail catheter into the pericardial space and collected more than 200 cc of bloody pericardial fluid. Outcomes: After pericardiocentesis, the patient's symptoms and hemodynamic status were dramatically improved. Follow-up TTE showed scanty amount of pericardial effusion and the drainage catheter was removed. The patient was discharged. Lessons: When treating HCC in the left lobe (especially segments II and IVa), attention should be paid to cardiac tamponade. The early diagnosis and immediate treatment of cardiac tamponade may increase the chance of cure.