Secuelas neurológicas en pacientes con infección congénita por citomegalovirus / Neurological sequelae in patients with congenital citomegalovirus

INTRODUCCIÓN: La infección por citomegalovirus es la infección congénita más frecuente en los países desarrollados y una de las principales causas de retraso psicomotor y sordera neurosensorial de origen infeccioso. El presente estudio tiene como objetivos describir las características clínico-analíticas y de neuroimagen de los pacientes con secuelas neurológicas secundarias a la infección congénita por citomegalovirus y compararlas con el grupo de pacientes con infección congénita por citomegalovirus que no presentaron clínica neurológica durante su seguimiento. Material y MÉTODOS: Estudio de cohortes retrospectivo, observacional. Se incluyeron todos los casos de infección congénita por citomegalovirus desde 2003 hasta 2018 y se evaluaron las secuelas neurológicas a corto-medio plazo. Se compararon datos prenatales, perinatales y posnatales de los pacientes con secuelas neurológicas frente a los que no las presentaron. RESULTADOS: En el periodo descrito se registraron 60 pacientes con infección congénita por citomegalovirus: un 65% presentó afectación neurológica durante su periodo de seguimiento (retraso psicomotor 62,2%; microcefalia 61,5%, hipoacusia 46,2%; trastornos motores 27,8%; epilepsia 20,5% y coriorretinitis 5,6%). En el grupo de pacientes que presentó secuelas, la presencia de clínica en el periodo neonatal así como las alteraciones en el estudio de neuroimagen fueron más frecuentes y ambas fueron estadísticamente significativas respecto al grupo asintomático. Los pacientes con afectación neurológica también presentaron mayor puntuación en la escala de neuroimagen según Noyola et al. CONCLUSIONES: La sintomatología al nacimiento y ciertos hallazgos en la neuroimagen, como la presencia de alteraciones de la sustancia blanca o trastornos de la migración neuronal, podrían predecir las secuelas neurocognitivas en los pacientes con infección congénita por citomegalovirus

INTRODUCTION: The infection due to cytomegalovirus is the most common congenital infection in developed countries, and on of the main causes of psychomotor impairment and neurosensory hearing loss of infectious origin. The present study has its objectives to describe the clinical-analytical and neuroimaging of patients with secondary neurological sequelae secondary to the congenital cytomegalovirus infection and then compare them with the group of patients with a congenital cytomegalovirus infection that did not have neurological symptoms during their follow-up. MATERIAL AND METHODS: A retrospective, observational, cohort study was conducted that included all the cases of congenital cytomegalovirus infection from 2003 until 2018 and the short-medium term neurological sequelae were evaluated. Prenatal, perinatal, and postnatal data of patients with neurological sequelae were compared against those that did not present with any. RESULTS: A total of 60 patients with congenital cytomegalovirus infection were recorded during the study period, with 65% having neurological involvement during their follow-up period (62.2% with psychomotor impairment, 61.5% with microcephaly, 46.2% loss of hearing, 27.8% motor disorders, 20.5% epilepsy, and 5.6% with chorioretinitis). In the patient group that had sequelae, the presence of clinical symptoms during the neonatal period, as well as changes in the neuroimaging study, were the most common, with both being statistically significant compared to the asymptomatic group. The patients with neurological involvement also had a higher score on the Noyola et al. neuroimaging scale. CONCLUSIONS: The symptoms at birth, and certain findings in the neuroimaging, like the changes in the white matter or neuronal migration disorders, could predict neurocognitive sequelae in patients with congenital cytomegalovirus infection

[Neurological sequelae in patients with congenital cytomegalovirus]. / Secuelas neurológicas en pacientes con infección congénita por citomegalovirus.

INTRODUCTION: The infection due to cytomegalovirus is the most common congenital infection in developed countries, and on of the main causes of psychomotor impairment and neurosensory hearing loss of infectious origin. The present study has its objectives to describe the clinical-analytical and neuroimaging of patients with secondary neurological sequelae secondary to the congenital cytomegalovirus infection and then compare them with the group of patients with a congenital cytomegalovirus infection that did not have neurological symptoms during their follow-up. MATERIAL AND METHODS: A retrospective, observational, cohort study was conducted that included all the cases of congenital cytomegalovirus infection from 2003 until 2018 and the short-medium term neurological sequelae were evaluated. Prenatal, perinatal, and postnatal data of patients with neurological sequelae were compared against those that did not present with any. RESULTS: A total of 60 patients with congenital cytomegalovirus infection were recorded during the study period, with 65% having neurological involvement during their follow-up period (62.2% with psychomotor impairment, 61.5% with microcephaly, 46.2% loss of hearing, 27.8% motor disorders, 20.5% epilepsy, and 5.6% with chorioretinitis). In the patient group that had sequelae, the presence of clinical symptoms during the neonatal period, as well as changes in the neuroimaging study, were the most common, with both being statistically significant compared to the asymptomatic group. The patients with neurological involvement also had a higher score on the Noyola et al. neuroimaging scale. CONCLUSIONS: The symptoms at birth, and certain findings in the neuroimaging, like the changes in the white matter or neuronal migration disorders, could predict neurocognitive sequelae in patients with congenital cytomegalovirus infection.

Metabolic Phenotypes of Hypoxic-Ischemic Encephalopathy with Normal vs. Pathologic Magnetic Resonance Imaging Outcomes.

Hypoxic-Ischemic Encephalopathy (HIE) is one of the most relevant contributors to neurological disability in term infants. We hypothesized that clinical outcomes of newborns with (HIE) can be associated with changes at plasma metabolic level enabling the detection of brain injury. Plasma samples of a cohort of 55 asphyxiated infants who evolved to moderate/severe HIE were collected between birth and completion of therapeutic hypothermia (TH). Samples were analyzed employing a quantitative gas chromatography-mass spectrometry method for the determination of lactate and pyruvate and an untargeted liquid chromatography-time-of-flight mass spectrometry method for metabolic fingerprinting. Brain injury was assessed employing magnetic resonance imaging (MRI). A critical assessment of the usefulness of lactate, pyruvate, and pyruvate/lactate for outcome prediction was carried out. Besides, metabolic fingerprinting identified a dynamic perturbation of eleven metabolic pathways, including amino acid and purine metabolism, and the steroid hormone biosynthesis, in newborns with pathologic MRI outcomes. Although data suggest the usefulness of lactate and pyruvate monitoring during 72 h for discerning outcomes, only the steroid hormone biosynthesis pathway was significantly altered in early plasma samples (i.e., before the initiation of TH). This study highlights pathways that might potentially be targeted for biomarker discovery or adjuvant therapies to be combined with TH.