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Chest compressions. Indication. If after 30 seconds of effective bag and mask ventilation with 100% oxygen, heart rate is below 60 per minute. When to stop chest compressions. When heart rate is 60 per minute or more. Principle.
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Indication • If after 30 seconds of effective bag and mask ventilation with 100% oxygen, heart rate is below 60 per minute
When to stop chest compressions • When heart rate is 60 per minute or more
Principle • Pump out blood from the heart during compression and fill up blood in the heart during release • Must always be accompanied by ventilation with 100% oxygen
Mechanism of Chest Compressions CompressRelease sternum heart heart
Components • Position • Neck slightly extended with firm support for the back • Lower 1/3rd of sternum between nipple line & sternum • Pressure required – depth • 1/3rd of the AP diameter of chest • Rate • 90/min
Chest Compressions Position • Lower third of sternum • Between nipple line and xiphisternum
Thumb method Two-finger method Techniques of Chest Compressions
Techniques • Thumb technique • Two-finger technique # Do not remove thumbs/finger from chest
Thumb technique • Thumbs on sternum, hands on torso & finger supporting the back • Thumbs flexed at the first joint • Pressure applied vertical
2-finger technique • Easier with right hand for right handed • Index and middle or ring fingers • Other hand used to support the back • Pressure applied vertically
Preferred method - thumb • Advantages • Better control of depth • Less tiring • Superior generation of peak systolic & coronary perfusion pressure • Nails do not hinder performance • Disadvantages • Difficult when baby is big • Umbilicus difficult to cannulate.
Compression • One compression consists downward compression plus the release • Actual distance is not a number but depends on size of baby • Duration of the downward stroke should be shorter than release to produce max COP
Rate & adequacy Rate • 3 CC then 1 ventilation (1:3) • 90 CC to 30 ventilation in one minute Adequacy • Palpate femoral/carotid pulse
Cycle of events • One – and – two –and – three – and – breathe – and • Consists of 3 compression & one ventilation • 120 events in 60 seconds • 1 cycles in 2 seconds
Chest Compressions Dangers • Broken ribs • Lacerated liver • Pneumothorax Precautions • No pressure on the ribs, xiphisternum, abdomen • Do not lift thumbs/fingers
Evaluation after 30 sec of CC & BMV • HR 60 per minute or more Stop CC, continue BMV at 40-60/min • If no improvement, check : • Effectiveness of BMV • Oxygen is 100% • Technique of CC is correct
Key points • When to do? • Why to do ? • How to do? • Which is best ? • When to stop ? • What if fails ?