Acute pericarditis before engraftment in hematopoietic stem cell transplantation

Atypical Presentation of Acute Pericarditis Secondary to Allogeneic Hematopoietic Stem Cell Transplantation: A Case Report

Cardiotoxicity linked with hematopoietic stem cell transplantation (HSCT) is a well-described phenomenon associated with an increased mortality risk; however, the majority of cardiac events present over 100 days following transfusion and are often attributed to graft-versus-host disease or pre-treatment conditioning by chemotherapy with or without radiation therapy. Here, we present the case of a 60-year-old female with a medical history of chronic lymphocytic leukemia complicated by a myelodysplastic syndrome that progressed to acute myeloid leukemia who developed chest pain immediately following an allogeneic HSCT. Electrocardiogram showed dynamic ST-depressions in leads V3-5 without evidence of reciprocal changes. Transthoracic echocardiography revealed pericardial effusion without signs of tamponade. The patient was thought to have acute pericarditis and was subsequently treated with high-dose intravenous methylprednisolone with a taper for two weeks. Her symptoms promptly subsided, and the pericardial effusion resolved on repeat echocardiography, which confirmed the diagnosis. Acute pericarditis is a rarely described complication of HSCT that is fatal if left untreated and prompts urgent management. This atypical case of acute pericarditis in the early post-transplant phase highlights the importance of cardiac stratification in patients with active malignancy undergoing treatment. It would suggest a potential benefit in closely monitoring high-risk individuals who have a history of coronary artery disease, smoking, or pericarditis in the pre-engraftment phase of transplantation.

Characterization of Pericarditis following Allogeneic Hematopoietic Cell Transplantation

Pericarditis is an uncommon cardiac complication following allogeneic hematopoietic cell transplantation (alloHCT), with limited data characterizing its incidence, presentation, and management. The etiology of pericarditis in this setting is poorly understood and may include conditioning-related toxicity, infection, or graft-versus-host disease (GVHD). The objective of the present study was to characterize the clinical presentation, management, and outcomes of post-alloHCT pericarditis observed at a single center. This retrospective case-control study of consecutive adults undergoing alloHCT over 5 years was conducted to identify patients who developed pericarditis. Pericarditis was diagnosed using clinical, electrocardiography, and echocardiography findings. Identified cases were compared with a cohort of patients who underwent alloHCT during the same period but did not develop pericarditis. A total of 620 patients underwent alloHCT over the 5-year period, 20 of whom developed pericarditis (3.2% incidence). One patient had a pre-alloHCT history of pericarditis. All but 3 patients had received anthracycline therapy and 1 patient had received chest irradiation before undergoing alloHCT. Patients with pericarditis were more likely than patients without pericarditis to have received total body irradiation (odds ratio [OR], 4.57; P = .003) or cyclophosphamide (OR, 2.35; P = .07) as conditioning or GVHD prophylaxis. Fourteen patients experienced their initial episode of pericarditis before day +100 post-alloHCT, with a median time to onset at day +7. Six patients had their initial episode on day +100 or later, with a median time to onset at day +268. Only 1 patient had active, previously diagnosed GVHD, and 3 patients were on systemic steroid therapy at the time of pericarditis diagnosis. Pericarditis was treated primarily with colchicine (median duration 91 days). Seven episodes of recurrence occurred in 5 patients. Two patients experienced cardiac tamponade following their initial diagnosis, and 3 developed tamponade at recurrence. Recurrence was more common in patients who received no or <90 days of colchicine compared with those who received ≥90 days (45.5% vs 0%; P = .02). No cardiac-related deaths occurred. Overall survival was 85% at a median follow-up of 30 months post-alloHCT. Pericarditis occurred in 3.2% of patients in this single-center study, with cases observed both before and after day +100 and some cases occurring ≥1 year after alloHCT. Colchicine was an effective intervention, with ≥90 days of treatment associated with reduced recurrence. Pericarditis should be considered in patients presenting with chest pain following alloHCT.