Principles Of Mechanical Ventilation

Front 1

in conditions associated with a decrease in lung compliance (e.g., pulmonary edema, pneumonia), positive-pressure lung inflation tends to

Back 1

compress the heart and intrathoracic blood vessels

Front 2

decrease in lung compliance (e.g., pulmonary edema, pneumonia), positive-pressure lung inflation tends to

Back 2

compress the heart and intrathoracic blood vessels

Front 3

decrease in lung compliance (e.g., pulmonary edema, pneumonia), positive-pressure lung inflation tends to

Back 3

compress the heart and intrathoracic blood vessels

Front 4

Positive-pressure lung inflation can reduce ventricular filling in several ways, as indicated in Figure 24.3. First, positive intrathoracic pressure decreases the

Back 4

ecreases the pressure gradient for venous inflow into the thorax (although positive-pressure lung inflations also increase intra-abdominal pressure, and this tends to maintain venous inflow into the thorax

Front 5

Positive-pressure lung inflation can reduce ventricular filling in several ways, as indicated in Figure 24.3. First, positive intrathoracic pressure decreases the

Back 5

ecreases the pressure gradient for venous inflow into the thorax (although positive-pressure lung inflations also increase intra-abdominal pressure, and this tends to maintain venous inflow into the thorax

Front 6

Positive-pressure lung inflation can reduce ventricular filling in several ways Second,

Back 6

positive pressure exerted on the outer surface of the heart reduces cardiac distensibility, and this can reduce ventricular filling during diastole

Front 7

Positive-pressure lung inflation can reduce ventricular filling in several ways Second,

Back 7

positive pressure exerted on the outer surface of the heart reduces cardiac distensibility, and this can reduce ventricular filling during diastole

Front 8

Positive-pressure lung inflation can reduce ventricular filling in several ways Second,

Back 8

positive pressure exerted on the outer surface of the heart reduces cardiac distensibility, and this can reduce ventricular filling during diastole

Front 9

Positive-pressure lung inflation can reduce ventricular filling in several ways Second,

Back 9

positive pressure exerted on the outer surface of the heart reduces cardiac distensibility, and this can reduce ventricular filling during diastole

Front 10

Positive-pressure lung inflation can reduce ventricular filling in several ways lastly

Back 10

compression of pulmonary blood vessels can raise pulmonary vascular resistance, and this can impede right ventricular stroke output. In this situation, the right ventricle dilates and pushes the interventricular septum toward the left ventricle, and this reduces left ventricular chamber size and left ventricular filling. This phenomenon, known as ventricular interdependence, is one of the mechanisms whereby right heart failure can impair the performance of the left side of the heart

Front 11

Positive-pressure lung inflation can reduce ventricular filling in several ways lastly

Back 11

compression of pulmonary blood vessels can raise pulmonary vascular resistance, and this can impede right ventricular stroke output. In this situation, the right ventricle dilates and pushes the interventricular septum toward the left ventricle, and this reduces left ventricular chamber size and left ventricular filling. This phenomenon, known as ventricular interdependence, is one of the mechanisms whereby right heart failure can impair the performance of the left side of the heart

Front 12

Positive-pressure lung inflation can reduce ventricular filling in several ways lastly

Back 12

compression of pulmonary blood vessels can raise pulmonary vascular resistance, and this can impede right ventricular stroke output. In this situation, the right ventricle dilates and pushes the interventricular septum toward the left ventricle, and this reduces left ventricular chamber size and left ventricular filling. This phenomenon, known as ventricular interdependence, is one of the mechanisms whereby right heart failure can impair the performance of the left side of the heart

Front 13

Positive-pressure lung inflation can reduce ventricular filling in several ways lastly

Back 13

compression of pulmonary blood vessels can raise pulmonary vascular resistance, and this can impede right ventricular stroke output. In this situation, the right ventricle dilates and pushes the interventricular septum toward the left ventricle, and this reduces left ventricular chamber size and left ventricular filling. This phenomenon, known as ventricular interdependence, is one of the mechanisms whereby right heart failure can impair the performance of the left side of the heart

Front 14

Positive-pressure lung inflation can reduce ventricular filling in several ways lastly

Back 14

compression of pulmonary blood vessels can raise pulmonary vascular resistance, and this can impede right ventricular stroke output. In this situation, the right ventricle dilates and pushes the interventricular septum toward the left ventricle, and this reduces left ventricular chamber size and left ventricular filling. This phenomenon, known as ventricular interdependence, is one of the mechanisms whereby right heart failure can impair the performance of the left side of the heart

Front 15

Whereas compression of the heart from positive intrathoracic pressure impedes ventricular filling during diastole, this same compression facilitates

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ventricular emptying during systole.

Front 16

Whereas compression of the heart from positive intrathoracic pressure impedes ventricular filling during diastole, this same compression facilitates

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ventricular emptying during systole.

Front 17

Whereas compression of the heart from positive intrathoracic pressure impedes ventricular filling during diastole, this same compression facilitates

Back 17

ventricular emptying during systole.

Front 18

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

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Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Front 19

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Back 19

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Front 20

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Back 20

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Front 21

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Back 21

Positive-pressure lung inflation tends to reduce ventricular filling during diastole but enhances ventricular emptying during systole.

Front 22

positive-pressure ventilation increases cardiac stroke output when

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When intravascular volume is normal and intrathoracic pressures are not excessive, the effect on afterload reduction predominates, and positive-pressure ventilation increases cardiac stroke output

Front 23

positive-pressure ventilation increases cardiac stroke output when

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When intravascular volume is normal and intrathoracic pressures are not excessive, the effect on afterload reduction predominates, and positive-pressure ventilation increases cardiac stroke output

Front 24

positive-pressure ventilation increases cardiac stroke output when

Back 24

When intravascular volume is normal and intrathoracic pressures are not excessive, the effect on afterload reduction predominates, and positive-pressure ventilation increases cardiac stroke output

Front 25

positive-pressure ventilation increases cardiac stroke output when

Back 25

When intravascular volume is normal and intrathoracic pressures are not excessive, the effect on afterload reduction predominates, and positive-pressure ventilation increases cardiac stroke output

Front 26

The increase in stroke volume causes an increase in systolic blood pressure during lung inflation; a phenomenon known as

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reverse pulsus paradoxus

Front 27

The increase in stroke volume causes an increase in systolic blood pressure during lung inflation; a phenomenon known as

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reverse pulsus paradoxus

Front 28

The increase in stroke volume causes an increase in systolic blood pressure during lung inflation; a phenomenon known as

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reverse pulsus paradoxus

Front 29

The increase in stroke volume causes an increase in systolic blood pressure during lung inflation; a phenomenon known as

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reverse pulsus paradoxus

Front 30

The increase in stroke volume causes an increase in systolic blood pressure during lung inflation; a phenomenon known as

Back 30

reverse pulsus paradoxus

Front 31

When intravascular volume is reduced, the predominant effect of positive intrathoracic pressure is to

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reduce ventricular preload and, in this setting, positive-pressure ventilation decreases cardiac stroke output. This emphasizes the importance of avoiding hypovolemia in the management of ventilator-dependent patients.

Front 32

When intravascular volume is reduced, the predominant effect of positive intrathoracic pressure is to

Back 32

reduce ventricular preload and, in this setting, positive-pressure ventilation decreases cardiac stroke output. This emphasizes the importance of avoiding hypovolemia in the management of ventilator-dependent patients.

Front 33

When intravascular volume is reduced, the predominant effect of positive intrathoracic pressure is to

Back 33

reduce ventricular preload and, in this setting, positive-pressure ventilation decreases cardiac stroke output. This emphasizes the importance of avoiding hypovolemia in the management of ventilator-dependent patients.

Front 34

When intravascular volume is reduced, the predominant effect of positive intrathoracic pressure is to

Back 34

reduce ventricular preload and, in this setting, positive-pressure ventilation decreases cardiac stroke output. This emphasizes the importance of avoiding hypovolemia in the management of ventilator-dependent patients.

Front 35

When intravascular volume is reduced, the predominant effect of positive intrathoracic pressure is to

Back 35

reduce ventricular preload and, in this setting, positive-pressure ventilation decreases cardiac stroke output. This emphasizes the importance of avoiding hypovolemia in the management of ventilator-dependent patients.