Systemic hypothermia to decrease morbidity of hypoxic-ischemic brain injury

Neurophysiological Response to Hypoxic-ischemic Injury and Moderate Hypothermia

Systemic hypothermia--a "cool" therapy for neonatal hypoxic-ischemic encephalopathy.

Hypoxic–ischemic encephalopathy is an important cause of death and disability in full-term infants. The incidence of moderate or severe hypoxic– ischemic encephalopathy has remained essentially unchanged over the past 20 years, at 1.5 to 2 per 1000 live births in the United States. Approximately 15 to 20 percent of these infants will die, and 20 to 25 percent of those who survive will be disabl...

Hypoxic-Ischemic Brain Injury in Piglets

Background and Purpose: The excitatory amino acid inhibitor MK-801 has been shown in many animals species to protect against hypoxic-ischemic brain injury. We sought to determine whether hypoxic-ischemic injury to the newborn pig's brain could be prevented by the use of MK-801. Methods: Hypoxic-ischemic injury to the brain was induced in forty 0-3-day-old piglets. They were randomized to receiv...

Hypothermia is not neuroprotective after infection-sensitized neonatal hypoxic-ischemic brain injury.

BACKGROUND Therapeutic hypothermia (HT) is the standard treatment after perinatal hypoxic-ischemic (HI) injury. Infection increases vulnerability to HI injury, but the effect of HT on lipopolysaccharide (LPS) sensitized HI brain injury is unknown. DESIGN/METHODS P7 rat pups were injected either with vehicle or LPS, and after a 4h delay they were exposed to left carotid ligation followed by gl...

Impaired cerebral autoregulation and brain injury in newborns with hypoxic-ischemic encephalopathy treated with hypothermia.

Impaired cerebral autoregulation may contribute to secondary injury in newborns with hypoxic-ischemic encephalopathy (HIE). Continuous, noninvasive assessment of cerebral pressure autoregulation can be achieved with bedside near-infrared spectroscopy (NIRS) and systemic mean arterial blood pressure (MAP) monitoring. This study aimed to evaluate whether impaired cerebral autoregulation measured ...