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Neonatal Resuscitation. Mary P. Martinasek, BS, RRT Director of Clinical Education Hillsborough Community College. Asphyxia. Hypoxia + Hypercapnia + Acidosis May lead to irreversible brain damage The necessity to resuscitate is related to the degree of asphyxia. Causes of fetal asphyxia.
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Neonatal Resuscitation Mary P. Martinasek, BS, RRT Director of Clinical Education Hillsborough Community College
Asphyxia • Hypoxia + Hypercapnia + Acidosis • May lead to irreversible brain damage • The necessity to resuscitate is related to the degree of asphyxia
Causes of fetal asphyxia • Maternal hypoxia • Insufficient placental blood flow • Blockage of umbilical blood flow • Fetal disorders
Primary vs. Secondary Apnea • Primary • Initial asphyxia • Signs • Initial period of rapid breathing • Respiratory movements cease • Heart rate and bp drop • Neuromuscular tone diminishes
Secondary Apnea • If no resuscitation and apnea continues • Signs • Deep gasping respirations • Heart rate continues to decrease • Blood pressure begins to fall • Infant flaccid
Primary Stimulation and oxygen will usually induce respirations Secondary Infant unresponsive to stimulation – must be resuscitated
Effects of asphyxia on the lungs • Ineffective respirations cannot open alveoli • Pulmonary Hypertension • Pulmonary vasoconstriction • Hypoxia, hypercarbia, acidosis
Persistent Fetal Circulationknown as PPHN • Leads to further asphyxia • Blood shunted • CO2 remains high despite ventilation • Indocin • Ligation of PDA
Preparation for Resuscitation • Anticipation of high risk delivery • Proper equipment • Trained personnel
Purpose of Resuscitation • Reverse asphyxia before irreparable damage has occurred
ABC’s of Resuscitation • A – Establish an open airway • Position infant • Suction mouth then nose • B – initiate breathing • Use tactile stimulation • Use PPV if necessary
Resuscitation • C – Maintain circulation • Stimulate and maintain circulation • Chest compressions • drugs
Initial steps • Dry the infant • Warm the infant • Position the infant • Suction the infant • Stimulate the infant
Next step • Evaluate respirations • If none or gasping , provide PPV with 100% O2 for 15-30 seconds • If spontaneous respirations then evaluate HR
Next • After 15-30 seconds of PPV or evaluation of spontaneous respirations then: • EVALUATE HEART RATE • If HR is above 100 then reevaluate respirations and color • If HR is less than 60 continue/start PPV and start compressions
Reassess • After 30 seconds reassess • HR greater than 60 stop compressions • HR greater than 100 and breathing stop PPV • Evaluate infant’s color • Peripheral vs. central cyanosis • What is acrocyanosis?
Thermoregulation • Maintain a neutral thermal environment • Possible causes of heat loss • Radiant • Evaporative • Convective • Conductive