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Table 1 Overview: overview of experiments and ventilations performed on each piglet

From: Feasibility of a prototype newborn resuscitation monitor to study transition at birth, measuring heart rate and ventilator parameters, an animal experimental study

Type of experiment

Duration (min)

Dead space (ml)

Volume (ml/kg)

Rate (vpm)

EtCO2 measurements

4

0

10

40

4

20

10

40

4

10

10

40

4

30

10

40

1

0

10

20

1

0

10

40

1

0

6

40

1

0

10

40

1

0

15

40

1

20

10

40

1

20

10

20

1

20

10

40

1

20

6

40

1

20

15

40

Pause

 

20

10

40

Surfactant deficiency

Lavage of the lungs through the ETT with 10 ml NaCl ten times in each series

 

Repeated lavage as long as mean arterial pressure >15

Ventilations with 100% O2, volume: 10 ml/kg, 40 ventilations per minute

  1. In the first part, EtCO2 was measured with different duration, dead space, volume and rates of inflation. Thereafter surfactant were lavaged out with 10 ml NaCl × 10 in each series and compliance and HR was measured after each series