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Published byJaylin Archbold
Modified over 2 years ago
Mechanical Ventilation PV Curves
Techniques for Measurement 1. Supersyringe 2. Constant Flow 3. Multiple Occlusion
Low Constant Flow Simple Can be performed on ventilator (some types) Avoids disconnect Hysteresis Heavy sedation or paralysis required Flow 9 L/min for “quasi-static” conditions 1 1 Qin Lu, AJRCCM 1999;159:275-282 Servillo, AJRCCM 1997;155:1629-1636
Radford, Tissue Elasticity, 1957 Surface forces due to air-liquid interface
Gattinoni, ARRD 1987;136:730-736 Pflex
P "safe" window zone of overdistension V Pressure-Volume Curve LIP UIP zone of derecruitment and atelectasis
PV Curve Normal ARDS COPD
P "safe" window zone of overdistension V atelectrauma volutrauma Lung Protective Ventilator Strategies LIP UIP zone of derecruitment and atelectasis DON’T EVEN THINK OF PARKING HERE
Pressure Volume Safe zone Overdistention Derecruited Lower P flex, LIP Upper P flex, UIP PV Curve in ARDS
Preventing Overdistention and Under-Recruitment Injury “Lung Protective” Ventilation VOLUMEVOLUME VOLUMEVOLUME Pressure Limit Distending Pressure Add PEEP Limit VT
PV Curve COPD
Pressure Volume Curve of the Respiratory System
“ فإذا سويته ونفخت فيه من روحي فقعوا له ساجدين“ ص ۷۲.
Advanced Pulmonary Mechanics during Mechanical Ventilation
Pulmonary Mechanics and Graphics during Mechanical Ventilation
Recruitment, PEEP titration and Open Lung Tool®
Waveforms RC 270 Pressure Volume Curves Graphic display of changes in compliance and resistance Used for TREND analysis! – One set of waveforms must.
BY: TRAVIS LENTINI Establishing the Need for Mechanical Ventilation.
HEATHER, FITSUM, AND LISAMARIE. APRV was described initially by Stock and Downs in 1987 as a continuous positive airway pressure (CPAP) with an intermittent.
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Positive End Expiratory Pressure Dr Muhammad Asim Rana.
Respiratory support and respiratory outcome in preterm infants PD Dr. med. Ulrich Thome Division of Neonatolgy and Pediatric Critical Care University Children’s.
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The Problem ARDS - mortality % Etiology - unknown Therapy - largely supportive »mechanical ventilation Lung injury How do you ventilate the ARDS.
Ram E. Rajagopalan, MBBS, AB (Int Med) AB (Crit Care)
The Map Between Lung Mechanics and Tissue Oxygenation The Map Between Lung Mechanics and Tissue Oxygenation.
L U N G COMPLIANCE ? Physiology Unit.
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ARDS Ventilator Management Nimesh Mehta, MD
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