A critically ill newborn in the NICU may be having seizures that nobody can see. This is not a rare occurrence. Studies consistently show that the majority of electrographic seizures in newborns produce no visible clinical signs. There is no rhythmic jerking, no eye deviation, no obvious change in breathing. The seizure exists entirely as an abnormal electrical discharge in the brain, invisible to the clinical team unless the brain is being monitored continuously and in real time.

This is the problem that amplitude-integrated EEG solves. It provides continuous bedside monitoring of the brain's electrical activity, making electrographic seizures visible, allowing the team to quantify the background brain function, and guiding decisions about treatment in a way that clinical observation alone cannot.

At KIMS Cuddles at KIMS Hospitals, Mahadevapura, aEEG monitoring in the NICU at Mahadevapura, Bengaluru is provided as a routine part of treatment to all babies who have a significant risk of neurological deterioration. This high level of specialist brain monitoring is available in the neonatal intensive care unit at our facility without needing to be transferred to a far-away hospital, for families across Mahadevapura, Whitefield and East Bengaluru. 

What aEEG Measures?

Amplitude-integrated EEG (aEEG) is a technique that captures the brain's electrical activity from a few electrodes on the baby's scalp to provide one or two channels of recording. The raw signal is passed through an algorithm that converts it into an easily seen trend display, where the amplitude of the signal is plotted over time. This compact visualisation enables the clinical team to view patterns of brain activity over hours and days on a single screen. 

The display shows the upper and lower margins of background brain activity, the cyclical variations between active and quiet sleep that reflect normal brain function, and the sharp deviations from the baseline that indicate seizure activity. This format allows the neonatal nurse and neonatologist to maintain continuous awareness of brain activity without requiring specialist neurophysiology expertise to interpret a full conventional EEG at the bedside.

When aEEG Monitoring Is Used

Neonatal seizure detection in Bengaluru through aEEG monitoring is indicated across a range of clinical situations where the risk of neurological compromise is elevated.

Hypoxic-ischaemic encephalopathy following perinatal asphyxia is the most important indication. aEEG is used both to characterise the severity of encephalopathy and guide the decision to initiate therapeutic hypothermia, and to monitor for seizure activity throughout the seventy-two-hour cooling period. 

The background aEEG pattern at the time of cooling initiation provides prognostic information about likely neurological outcome, and continuous monitoring during cooling allows real-time detection of seizures that require anticonvulsant treatment.

Prematurity, particularly at gestations below thirty weeks, is another important indication. The risk of intraventricular haemorrhage is highest in this population, and the neurological consequences of significant haemorrhage make continuous brain monitoring an important part of early management.

Neonatal meningitis and encephalitis, metabolic encephalopathy including severe hypoglycaemia and hyponatraemia, post-cardiac surgery monitoring, and any newborn with unexplained clinical deterioration where a neurological cause is being considered are all situations where neonatal brain monitoring in Bengaluru through aEEG provides information that clinical observation alone cannot.

aEEG in Therapeutic Hypothermia

The relationship between amplitude-integrated EEG and therapeutic hypothermia management is particularly close. Seizure burden in babies with hypoxic-ischaemic encephalopathy is often considerably higher than clinical observation suggests, with many electrographic seizures producing no visible signs. 

Without continuous monitoring, these seizures go undetected and untreated, contributing to secondary brain injury during a period when minimising injury is the primary clinical goal.

The aEEG trace during rewarming is similarly important. Seizure frequency often changes as the temperature rises after seventy-two hours of cooling, and anticonvulsant management may need adjustment during this period. Continuous monitoring provides the information needed to make these adjustments rather than relying on observation alone.

Interpreting aEEG Patterns

aEEG background patterns are considered normal, moderately abnormal, or severely abnormal depending on the amplitude margins of the background pattern and the absence or presence of sleep-wake cycling. The most reassuring is the presence of a continuous normal voltage pattern with good sleep–wake cycling, which suggests normal or near-normal development of the brain. 

A burst suppression pattern is a pattern characterised by periods of flat or very low amplitude activity that alternate with periods of higher amplitude activity; it is a sign of moderate to severe neurological compromise and directs the urgency of treatment and the information that will be communicated to the family regarding prognosis.

Seizure activity appears as abrupt rises in the lower margin of the background, often accompanied by a characteristic sawtooth pattern. Our team at KIMS Cuddles at KIMS Hospitals, Mahadevapura is trained in the interpretation of these patterns and in the correlation of aEEG findings with the clinical picture.

Conventional EEG and Specialist Input

While amplitude-integrated EEG provides invaluable continuous bedside brain monitoring, it does not replace conventional multi-channel EEG for detailed characterisation of seizure type and origin. When aEEG findings indicate the need for more detailed neurophysiological assessment, our team coordinates specialist paediatric neurology and neurophysiology input from within the KIMS Hospitals network.

aEEG and traditional EEG are complementary. The aEEG identifies the issue and can track the treatment response as it happens. If necessary, the conventional EEG offers the detail that guides the diagnostic classification and planning of long-term management. 

Why Choose KIMS Cuddles at KIMS Hospitals, Mahadevapura

Amplitude-integrated EEG neonatal monitoring in Mahadevapura, Bengaluru requires a trained team capable of recognising significant patterns and responding appropriately within a NICU that has the clinical infrastructure to manage the findings it reveals. 

At KIMS Cuddles at KIMS Hospitals, Mahadevapura, our neonatal team is trained in aEEG interpretation and applies it as a standard tool in the management of all high-risk neonates. The monitoring does not happen in isolation. It is integrated into the clinical management of each baby as a continuous source of information that the whole team acts on.

For families in Mahadevapura, Whitefield, KR Puram, and East Bengaluru, having this level of specialist neonatal brain monitoring available locally means that a baby requiring continuous neurological surveillance receives it within our NICU from the moment it is needed.

Book an Appointment

If your baby has been referred for specialist neonatal care or has a condition associated with neurological risk, our team at KIMS Cuddles at KIMS Hospitals, Mahadevapura is here to help. Contact our care coordinators or book a consultation online.