Safety of Bronchoalveolar Lavage in Hematological Patients with Thrombocytopenia. A Retrospective Cohort Study.

Background: Hospitalized hematological patients often require bronchoalveolar lavage (BAL). Scarce evidence exists regarding the potential risks in patients with very severe thrombocytopenia (VST).

Methods: This retrospective-cohort study included adult hematological in-patients with VST, defined as platelets<20x10/μL, undergoing BAL during 2012-2021.

Clinical presentations of acute pulmonary embolism: A retrospective cohort study.

We aimed to investigate whether the unusual clinical presentation of pulmonary embolism (PE) varies by the type of provocation. In this retrospective cohort study, we examined the electronic health records (EHR) records of all patients diagnosed with PE (upon presentation or during hospitalization) presented to our tertiary hospital during 2014 to 2019. Inclusion criteria were the diagnosis of acute PE and age above 18 years.