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Ebook Inderbir singh textbook of anatomy (3/E): Part 2

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Nội dung chi tiết: Ebook Inderbir singh textbook of anatomy (3/E): Part 2

Ebook Inderbir singh textbook of anatomy (3/E): Part 2

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

Ebook Inderbir singh textbook of anatomy (3/E): Part 2ntilationIndicationsContinuous Positive Airway PressureVentilator SettingsMonitoringLiberation•Points to Remember•Additional ReadingObjectives1 Descri

be the effects of positive pressure ventilation on heart-lung interactions.2List indications for mechanical ventilation in patients with cardiac failu Ebook Inderbir singh textbook of anatomy (3/E): Part 2

re.3Discuss the role of continuous positive airway pressure in patients with cardiac failure.4Discuss the monitoring and weaning of patients with card

Ebook Inderbir singh textbook of anatomy (3/E): Part 2

iac failure.IntroductionCardiovascular disease is the leading cause of death in the United States. As a result, many patients present to the emergency

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

Ebook Inderbir singh textbook of anatomy (3/E): Part 2ation of positive pressure ventilation. Increasingly the respiratory support is applied noninvasively.OverviewHeart-Lung Interactionsrhe normal change

s in intrathoracic pressure during spontaneous breathing facilitate venous return and maintains adequate preload to the light heart. In addition, the Ebook Inderbir singh textbook of anatomy (3/E): Part 2

negative mean inlrathoracic pressure reduces left ventricular altcrload. Left ventricular dysfunction with myocardial infarction (MT) or severe conges

Ebook Inderbir singh textbook of anatomy (3/E): Part 2

tive heart failure results in increased left ventricular preload, pulmonary edema, decreased cardiac output, hypoxemia, and work-oi-breathing. or part

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

Ebook Inderbir singh textbook of anatomy (3/E): Part 2muscles receive as much as 40% of the cardiac output during stress, which can result in a reduction of blood flow to other vital organs.Effects of Mec

hanical VentilationWith positive pressure ventilation, the mean intrathoracic pressure is positive. During inspiration, intrathoracic pressure increas Ebook Inderbir singh textbook of anatomy (3/E): Part 2

es, whereas it decreases withspontaneous breathing. This decreases left ventricular pre the patient with acute left ventricular dysfunction, this may

Ebook Inderbir singh textbook of anatomy (3/E): Part 2

ciinaiicc me performance of a compromised myocardium. In the hypovolemic patient, however, these effects may further decrease cardiac output.The resp

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

Ebook Inderbir singh textbook of anatomy (3/E): Part 2 the compliance of the lungs and chest wall affects the transmission of alveolar pressure into the intrathoracic space. The most deleterious effect on

hemodynamics occurs with compliant lungs and a stiff chest wall, which results in greater pressure in the intrathoracic space. Cardiovascular volume Ebook Inderbir singh textbook of anatomy (3/E): Part 2

and tone, pulmonary vascular resistance, and right and left ventricular function determine the effect of intrathoracic pressure on hemodynamics (Table

Ebook Inderbir singh textbook of anatomy (3/E): Part 2

23-1).Table 23-1 Determinants of Cardiovascular Response to Positive Pressure Ventilation•Cardiovascular-Vascular volume-Vascular tone-Pulmonary vasc

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

Chapter 23Cardiac Failure•Introduction•OverviewHeart-Lung InteractionsEffects of Mechanical VentilationPositive End-Expiratory Pressure•Mechanical Ven

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