Ntineri A, Kaziani K, Paraskeva M, Filopoulou A, Stefanidou A
Transcription
Ntineri A, Kaziani K, Paraskeva M, Filopoulou A, Stefanidou A
A LIFE-THREATENING AUTOIMMUNE HEMOLYTIC ANEMIA IN A PATIENT WITH NEWLY-DIAGNOSED PULMONARY SARCOIDOSIS Ntineri A, Kaziani K, Paraskeva M, Filopoulou A, Stefanidou A, Kounadis G, Kontogeorgi E, Kourti G, Karakatsanis S, Roussou P Third University Department of Medicine, National & Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece METHODS OBJECTIVES Autoimmune hemolytic anemia (AIHA) is a rare condition usually associated with hematological malignancies, autoimmune disorders or various drugs. However, the association with sarcoidosis has infrequently been described. We report the case of a life-threatening warm AIHA diagnosed in a patient during his evaluation for possible sarcoidosis. Α 44-year-old man presented with systemic complaints (fever, chills, fatigue, sweats, weight loss), marked mediastinal lymphadenopathy and interstitial lung disease (Fig. 1-2), uveitis, pericarditis and elevated liver and cardiac enzymes. Based on a typical bronchoalveolar lavage (lymphocytes 36%, CD4/CD8 ratio 4.2), sarcoidosis with ocular and pericardial involvement was the most probable diagnosis, although transbronchial needle biopsy was not pathognomonic. RESULTS Fig. 1 Fig. 2 During his hospitalization the patient developed jaundice and had a dramatic fall in hematocrit (from 37% to 9%) with evidence of warm AIHA (raised reticulocyte count, elevated LDH, unconjugated bilirubinemia, positive direct antiglobulin test for both IgG and C3d), while receiving piperacillintazobactam. Antibiotic was discontinued and corticosteroids (prednisone 1 mg/kg) and a 5-day-treatment with intravenous immunoglobulin (IVIg, 400 mg/kg) were initiated while 6 red blood cell units were required during the first 4 days in order to maintain a hematocrit of 17% (Graph. 1). Seven days later, while being under remission, the patient experienced an embolic stroke (Fig. 3). Further extensive investigation (virological and tuberculosis testing, testing for connective tissue diseases, bone marrow biopsy, PET/CT scan and heart MRI) indicated no alternative diagnosis as the underlying cause of hemolysis. Fig. 3 Graph. 1 CONCLUSIONS bsh2016 Although AIHA is frequently correlated with autoimmune disorders, its association with sarcoidosis has only occasionally been reported. While the simultaneous administration of piperacillin-tazobactam was a confounding factor (Naranjo score 2, possible adverse drug reaction), the slow resolution of the hemolytic process after drug discontinuation as well as its severity were considered as arguments against its implication. The ischemic stroke that followed was also an intriguing event which could be attributed to the hemolysis-driven hypercoagulable state or even the administration of IVIg. 375-P Angeliki Ntineri Poster presented at: DOI: 10.3252/pso.eu.BSH2016.2016