Psychrobacter sanguinis: an Unusual Bacterium for Nosocomial

We report the first case of postneurosurgical meningitis due to Psychrobacter sanguinis, identified only by 16S rRNA analysis. Psychrobacter spp. usually live in deep sea environments and cold habitats. Despite a strict questioning of the patient and the medical staff, we did not find the source of this bacterium. CASE REPORT A64-year-old woman, living near the English Channel, sud-denly experienced severe headaches and vomiting. After hos-pital admission to an emergency department, clinical examination revealed nuchal rigidity but no focal neurological symptoms. There was no hyperthermia or altered consciousness (Glasgow coma scale evaluated at 14). Computed tomography angiography (CTA) showed a subarachnoid hemorrhage with enlargement of ventricles, due to a basilar artery aneurysm. The patient was im-mediately transferred to a neurosurgery unit. An external ventric-ular drain was put in place under local anesthesia to relieve the elevated intracranial pressure. She did not receive any prophylac-tic antibiotic therapy. Endovascular coiling was performed on da