Neonatal adaptation to ectopic life

2021-06-10 04:12 PM

After the baby comes out of the mother without anaesthesia, the baby usually starts breathing within seconds and normal breathing is achieved within 1 minute of birth.

Start breathing

The most obvious effect of childbirth on the baby is the loss of the placenta that connects to the mother, and thus the loss of this metabolic support. One of the most important immediate changes needed in a newborn is to start breathing.

Causes of breathing at birth

After the baby comes out of the mother without anaesthesia, the baby usually starts breathing within seconds and normal breathing is achieved within 1 minute of birth. Rapid foetal breathing indicates that breathing is triggered by sudden exposure to the external environment, presumably caused by a state of asphyxiation, which is the birth process, and by sensory impulses originating in the skin. suddenly cold. If the baby doesn't breathe right away, the body becomes further hypoxic and increases the CO2 concentration, which creates extra stimulation on the respiratory centre and usually causes breathing within a minute of birth.

Slow or abnormal breathing after birth-risk of hypoxia

If the mother is anaesthetized at birth, at least part of the foetus is anaesthetized, and respiratory initiation is likely to be delayed by several minutes, thus demonstrating the importance of using less aesthetic. Because of this, many babies have head trauma during birth or go through prolonged labour that slows their breathing or sometimes doesn't breathe at all. This is likely to have 2 effects:

First, in a small number of children, intracranial bleeding or contusion causes a traumatic syndrome that places great pressure on the respiratory centre. Second, and perhaps more importantly, prolonged foetal hypoxia during delivery can cause severe impairment of the respiratory centre.

Hypoxia frequently occurs during delivery because (1) Compression of the umbilical cord; (2) The placenta is prematurely aborted; (3) Uterine contractions are too strong, they can cut off the mother's blood flow to nourish the foetus; or (4) Over-anaesthesia in the mother, which reduces the oxygenation of the mother's blood.