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The Berlin definition included ALI as a mild form of ARDS. [53] However, the criteria for the diagnosis of ARDS in the Berlin definition excludes many children, and a new definition for children was termed pediatric acute respiratory distress syndrome (PARDS); this is known as the PALICC definition (2015). [54] [55]
Acute respiratory distress syndrome : a potentially life-threatening condition where the alveoli are damaged thereby letting fluid leak into the lungs which makes it difficult to exchange gases and oxygenate the blood. [3] It is the general practice of the medical community to use the Berlin criteria to diagnose ARDS.
Respiratory distress syndrome (RDS) - is a breathing problem that sometimes affects babies born six weeks or more before their due dates. Their lungs aren't developed enough to make surfactant, a liquid that coats the inside of the lungs and keeps them open so that the baby can breathe in air once he or she is born.
The pathophysiology of acute respiratory distress syndrome involves fluid accumulation in the lungs not explained by heart failure (noncardiogenic pulmonary edema). It is typically provoked by an acute injury to the lungs that results in flooding of the lungs' microscopic air sacs responsible for the exchange of gases such as oxygen and carbon dioxide with capillaries in the lungs. [1]
The Horowitz index plays a major role in the diagnosis of ARDS. [3] Three severities of ARDS are categorized based on the degree of hypoxemia using the Horowitz index, according to the Berlin definition. The Horowitz index also correlates to mortality in ARDS.
Acute interstitial pneumonitis is often categorized as both an interstitial lung disease and a form of acute respiratory distress syndrome (ARDS). In uncommon instances, if ARDS appears acutely, in the absence of known triggers, and follows a rapidly progressing clinical course, the term "Acute interstitial pneumonia" is used. [ 1 ]
A similar stereotyped course was postulated to be: the first phase of an incubation period, a second phase corresponding to the viral phase, a third phase corresponding to the state of inflammatory pneumonia, a fourth phase corresponding to the brutal clinical aggravation reflected by acute respiratory distress syndrome (ARDS), and finally, in ...
Patients in shock often experience respiratory distress due to pulmonary edema (e.g., in cardiogenic shock). Lactic acidosis and anemia can also result in type 4 respiratory failure. [ 1 ] However, type 1 and 2 are the most widely accepted.