PMID: 9866Jan 1, 1975

Justification, methods and indications for positive-pressure respiration in controlled and spontaneous ventilation in lesional pulmonary edeman

Annales de l'anesthésiologie française
J Du CailarD Griffe


Proposed since 1938 as a treatment for pulmonary edema, continuous positive pressure ventilation (PPP) still called teleexpiratory positive pressure in France (PPTE) and "Positive End Expiratory Pressure" (PEEP) or even "Continuous Pressure Breathing" (CPPB) in Anglo-Saxon countries, has taken a place in the first line of therapy in refractory hypoxia and particulary when the latter originate from lesional pulmonary edema. The aim of PPP is to open up the alveolar territories by calling on their elastic properties, to fight against micro-atelectasis and bronchial collapse, to diminish the closing volume, to increase the FRC, thereby improve VA/Qc, decrease Qs/Qt and increase PaO2. Furthermore, in the particular case of pulmonary edema, PPP acts against the hydrostatic pressure by increasing the external component of the transmural pressure and by evening out pulmonary capillary blood flow.

Related Concepts

Carbon Dioxide
Lung Volume Measurements
Oxygen Consumption
Positive End-Expiratory Pressure
Pulmonary Edema

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

The Tendon Seed Network

Tendons are rich in the extracellular matrix and are abundant throughout the body providing essential roles including structure and mobility. The transcriptome of tendons is being compiled to understand the micro-anatomical functioning of tendons. Discover the latest research pertaining to the Tendon Seed Network here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.


Incretins are metabolic hormones that stimulate a decrease in glucose levels in the blood and they have been implicated in glycemic regulation in the remission phase of type 1 diabetes. Here is the latest research.

Chromatin Regulation and Circadian Clocks

The circadian clock plays an important role in regulating transcriptional dynamics through changes in chromatin folding and remodelling. Discover the latest research on Chromatin Regulation and Circadian Clocks here.

Long COVID-19

“Long Covid-19” describes illness in patients who are reporting long-lasting effects of the SARS-CoV-19 infection, often long after they have recovered from acute Covid-19. Ongoing health issues often reported include low exercise tolerance and breathing difficulties, chronic tiredness, and mental health problems such as post-traumatic stress disorder and depression. This feed follows the latest research into Long Covid.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.