COVID-19 in hematopoietic stem cell transplant recipients during three years of the pandemic: a multicenter study in Brazil

ABSTRACT Hematopoietic stem cell transplant (HSCT) recipients are at -increased risk for severe COVID-19. The aim of this study was to evaluate the burden of COVID-19 in a cohort of HSCT recipients. This retrospective study evaluated a cohort of adult hospitalized HSCT recipients diagnosed with COVID-19 in two large hospitals in São Paulo, Brazil post-HSCT, from January 2020 to June 2022. The primary outcome was all-cause mortality. Of 49 cases, 63.2% were male with a median age of 47 years. Allogeneic-HSCT (51.2%) and autologous-HSCT (48.9%) patients were included. The median time from HSCT to COVID-19 diagnosis was 398 days (IQR: 1211-134), with 22 (44.8%) cases occurring within 12 months of transplantation. Most cases occurred during the first year of the pandemic, in non-vaccinated patients (n=35; 71.4%). Most patients developed severe (24.4%) or critical (40.8%) disease; 67.3% received some medication for COVID-19, primarily corticosteroids (53.0%). The probable invasive aspergillosis prevalence was 10.2%. All-cause mortality was 40.8%, 51.4% in non-vaccinated patients and 14.2% in patients who received at least one dose of the vaccine. In the multiple regression analyses, the variables mechanical ventilation (OR: 101.01; 95% CI: 8.205 - 1,242.93; p = 0.003) and chest CT involvement at diagnosis ≥50% (OR: 26.61; 95% CI: 1.06 - 664.26; p = 0.04) remained associated with all-cause mortality. Thus, HSCT recipients with COVID-19 experienced high mortality, highlighting the need for full vaccination and infection prevention measures.

Lesão penetrante do crânio pela via transnasal: relato de caso / Transnasal penetrating brain injury: case report

Lesões penetrantes no crânio são incomuns pela via transnasal e geralmente ocorrem como resultado de violência,acidentes de trabalho,de trânsito,ou por um evento casual.Este relato trata de introdução acidental de barra de metal, por uma das narinas, atravessando os planos da base do crânio e se alojando no cérebro de uma criança do sexo masculino de 4 anos de idade.Esta apresentava cefaléia,epistaxe e alteração visual.A radiografia e a tomografia computadorizada demonstraram o corpo estranho atingindo a região da sela túrcica à esquerda.Na arteriografia digital cerebral observou-se que a barra atingia a artéria carótida, em sua bifurcação e região de artéria cerebral média. Foi feita craniotomia pterional esquerda para retirada da barra com visualização direta. Encontrou-se lesão superficial da artéria carótida e da artéria oftálmica.Realizou-se contenção do sangramento.O paciente evoluiu no pós-operatório imediato com edema cerebral frontal unilateral,hipertensão intracraniana e fístula liquórica.Com um ano de evolução apresentava-se apenas com déficit visual.Esse caso chama a atenção por sua raridade e por demonstrar a importância da craniotomia e da microcirurgia no controle da hemorragia.