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phrenic nerve damage leading to paralysis of the ipsilateral diaphragm may result from a stretch injury due to lateral hyperextension of the neck at birth .
injury to the nerve is thought to occur at the point where it crosses the brachial plexus .
phrenic nerve injury with diaphragmatic paralysis must be considered when cyanosis and irregular and labored respirations develop .
diaphragmatic paralysis due to phrenic nerve paralysis may result in significant respiratory compromise , pulmonary infection , growth failure , and even death .
this rare cause of respiratory distress of newborn may be missed easily among multiple common etiologies of respiratory distress of newborn if this entity is not kept in mind and thorough examination is not done .
these newborn babies may require continuous positive airway pressure ( cpap ) or mechanical ventilation and if unresponsive , surgical plication of diaphragm should be performed .
herein , we present the case of a female baby who was preterm , weighed 1.75 kg , was appropriate for gestational age , and was born by vaginal delivery with breech presentation .
the baby cried immediately after birth . immediately after birth , the baby developed respiratory distress . upon examination
x - ray of the chest showed elevation of the right hemidiaphragm [ figures 2 and 3 ] .
chest x - ray showing elevated right side of diaphragm another chest x - ray showing elevated right side of diaphragm the baby was started on cpap in view of the severe respiratory distress with grunting and cyanosis on the 1 day .
the baby was weaned to head box oxygen on the 4 day of life and was started on orogastric tube feeds on the 5 day of life .
x - ray of the chest revealed normal position of the right side of diaphragm and ultrasound showed normal movement of the right hemidiaphragm with respiration .
phrenic nerve damage leading to paralysis of the ipsilateral diaphragm may result from a stretch injury due to lateral hyperextension of the neck at birth .
diaphragmatic paralysis alone in the newborn results in significant respiratory sequelae and failure to thrive .
the usual presentation is with respiratory distress , produced largely by over activity of normal hemidiaphragm . in cases of bilateral paralysis ,
there is excessive stretching of c3-c5 nerve roots in the neck . of patients with brachial plexus palsy
majority of the babies with brachial plexus palsy manifested respiratory complications sufficient to warrant diaphragmatic plication ( dp ) .
the severity of brachial plexus palsy failed to correlate with the severity of respiratory consequences .
al - qattan et al . investigated the prognostic value of concurrent phrenic nerve palsy in newborn babies with erb 's palsy .
the records of 191 babies with erb 's palsy were reviewed retrospectively in their study .
poor spontaneous return of the motor function of the limb was found for infants both with and without concurrent phrenic nerve palsy .
concurrent phrenic nerve palsy in newborn babies with erb 's palsy has no prognostic value in predicting spontaneous motor recovery of the limb .
the intercostal muscles are inhibited , because of the supine position of newborn , the diaphragm is pushed upward aggravating respiratory distress . the diagnosis is suggested on chest radiograph if the right hemidiaphragm is two intercostal spaces higher than left or if the left hemidiaphragm is one intercostal space higher than right .
paradoxical motion or limitation of motion of involved diaphragm may be seen on fluoroscopy or ultrasound examination .
ultrasound examination of the diaphragm and phrenic nerve conduction studies are the diagnostic methods of choice .
this is the reason why some newborn babies improve markedly with cpap . according to escande et al .
, non - invasive nasal cpap should be proposed for the treatment of phrenic nerve obstetrical palsy before introducing more invasive ventilation techniques .
these babies improve over a period of 2 - 3 weeks and further improvement is possible over a period of 2 months .
if there is no further improvement and if the newborn can not be weaned from the ventilator , surgical plication of the diaphragm should be performed .
stramrood et al . in his study showed that a minority of infants suffering from diaphragmatic paralysis due to perinatal phrenic nerve injury recover spontaneously .
infants who fail to wean from ventilatory support and undergo early plication have a quick recovery and can be extubated successfully within a few days .
plication of the diaphragm is a safe and useful procedure to improve ventilation in infants with a paralyzed diaphragm .
since this technique does not prevent return of the diaphragmatic function , it should be employed prior to the development of sequelae of prolonged assisted ventilation and sooner if the phrenic nerve is permanently injured . according to de vries et al .
, if after 1 month , no spontaneous recovery of the diaphragmatic paralysis caused by a phrenic nerve injury occurs , plication of the diaphragm is indicated .
this operation proved to be successful for relief of symptomatic phrenic nerve injury in all cases .
if the condition of the patient clinically deteriorates during the 1 month of life , the patient should be operated upon immediately .
traditionally , dp is performed via a thoracotomy that includes incision of the lower intercostal muscles , which are involved in respiratory movement .
this may adversely affect ventilation by causing deterioration of respiratory function and making ventilation less efficient .
these problems do not occur with thoracoscopic dp , since the lower intercostal muscles are left intact .
birth injury is defined as an impairment of a newborn 's body function or structure due to adverse influences that occurred at birth . 
 phrenic nerve palsy may result from birth trauma during a traumatic neonatal delivery from a stretch injury due to lateral hyperextension of the neck at birth . 
 this could be a rare cause of respiratory distress in the newborn period with irregular respiration . 
 respiratory distress due to phrenic nerve damage leading to paralysis of the ipsilateral diaphragm may require continuous positive airway pressure or mechanical ventilation and if unresponsive , surgical plication of diaphragm . 
 herein , we report a case of phrenic nerve palsy in a newborn presenting with respiratory distress .