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REVIEW ARTICLE
Year : 2015  |  Volume : 4  |  Issue : 1  |  Page : 542-546

Biphasic positive airway pressure and airway pressure release ventilation


Professor of Anaesthesiology, Kasturba Medical College, Manipal 576104, India

Correspondence Address:
Handattu Mahabaleswara Krishna
Professor of Anaesthesiology, Kasturba Medical College, Manipal 576104
India
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Source of Support: None, Conflict of Interest: None


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Biphasic positive airway pressure (BIPAP) and Airway pressure release ventilation (APRV) are two commonly used modes of ventilation. BIPAP is widely used as a ‘universal mode of ventilation’ for both invasive and noninvasive mechanical ventilation. Understanding the functioning of this mode helps in ventilation with this mode alone for all levels of support. APRV is a variant of BIPAP and offers benefits for protective lung ventilation. Allowing patient's spontaneous respiration unhindered at all phases of ventilation is the hallmark of these modes. The ventilatory characteristics, difference from the conventional pressure controlled ventilation (PCV), ventilatory settings, technique of weaning, indications, contraindications, advantages and disadvantages of these two modes of ventilation are described in this article.


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