Abstract
This study included 20 patients with hematological diseases who developed Pneumocystis jirovecii pneumonia (PJP) after receiving allogeneic hematopoietic stem cell transplantation (allo-HSCT) from April 2014 to October 2022 at Peking University People's Hospital. The 20 patients comprised 13 males (65.0% ) and seven females (35.0% ), with a median age of 34 (19-60) years. Eleven cases (55.0% ) of acute myeloid leukemia, four cases (20.0% ) of acute lymphocytic leukemia, two cases (10.0% ) of myelodysplastic syndrome, one case (5.0% ) of chronic myelomonocytic leukemia, one case (5.0% ) of non-Hodgkin lymphoma, and one case (5.0% ) of aplastic anemia were analyzed. Three cases (15.0% ) of HLA-identical sibling hematopoietic stem cell transplantation, three cases (15.0% ) of matched unrelated donor hematopoietic stem cell transplantation, and 14 cases (70.0% ) of haploid hematopoietic stem cell transplantation were identified. The median onset time of PJP was 353 (74-1121) days after transplantation. The clinical symptoms mainly included fever, cough, expectoration, and dyspnea. All patients presented signs of infection based on the CT scan, including bilateral diffuse ground-glass opacities, patchy shadows, and solid nodules. Nine patients (45.0% ) required respiratory support via nasal catheter oxygen inhalation, while seven patients (35.0% ) required ventilator-assisted breathing. Seven (35.0% ) severe infections and 13 (65.0% ) mild to moderate infections were recorded. Moreover, eight patients (40.0% ) were complicated with human cytomegalovirus infection, whereas two patients were complicated with EB virus infection. Furthermore, all 20 patients received treatment with compound sulfamethoxazole (standard dose, 11 cases; low dose, 9 cases). Furthermore, 19 patients survived and one patient died.
Published Version
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