Abstract
The acute respiratory distress syndrome (ARDS) is characterized by bilateral diffuse alveolar disease on radiograph, restrictive lung physiology, a decrease in functional residual capacity (FRC), intrapulmonary shunt, and arterial hypoxemia. In ARDS, significant positive airway pressure is often needed in order to restore and maintain an adequate FRC. Despite improving oxygenation, the use of positive airway pressure may lead to a decrement in cardiac output (CO), negating the increase in oxygen content, or in more severe cases a decrease in systemic oxygen delivery (DO2). In this chapter, we will discuss the physiologic underpinnings of heart–lung interactions, with an emphasis on the impact of positive airway pressure on right ventricular (RV) loading conditions and output and the salient aspects of the pathophysiology of ARDS in order to discuss the impact, assessment, and treatment of positive pressure ventilation (PPV)-induced cardiovascular dysfunction in pediatric ARDS.
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Flores, S., Loomba, R.S., Bronicki, R.A. (2020). Heart–Lung Interactions and Cardiovascular Support in Pediatric Acute Respiratory Distress Syndrome. In: Shein, S., Rotta, A. (eds) Pediatric Acute Respiratory Distress Syndrome. Springer, Cham. https://doi.org/10.1007/978-3-030-21840-9_13
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DOI: https://doi.org/10.1007/978-3-030-21840-9_13
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