RT Journal Article T1 [Neonatal facial palsy: identification of herpes simplex virus 1 in cerebrospinal fluid. Case report]. T2 Parálisis facial neonatal: identificación del virus del herpes simple 1 en el líquido cefalorraquídeo. Caso clínico. A1 Lubián López, Simón A1 Pérez Guerrero, Juan J A1 Salazar Oliva, Patricia A1 Benavente Fernández, Isabel K1 facial paralysis K1 herpes simplex K1 newborn AB Neonatal facial palsy is very uncommon and is generally diagnosed at birth. We present the first published case of neonatal facial palsy with identification of herpes simplex virus 1 in cerebrospinal fluid. A 35-day-old male was presented at the Emergency Department with mouth deviation to the left and impossibility of full closure of the right eye. There were no symptoms of infection or relevant medical history. Physical examination was compatible with peripheral facial palsy. Studies performed at admission were normal (blood count, biochemical analysis and coagulation blood tests and cerebrospinal fluid analysis). The patient was admitted on oral prednisolone and intravenous aciclovir. Cranial magnetic resonance was normal. Polymerase chain reaction test for herpes simplex virus 1 in cerebrospinal fluid was reported positive after 48 hours of admission. Patient followed good evolution and received prednisolone for 7 days and acyclovir for 21 days. At discharge, neurological examination was normal. YR 2018 FD 2018 LK http://hdl.handle.net/10668/12459 UL http://hdl.handle.net/10668/12459 LA es DS RISalud RD Apr 19, 2025