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Previous research has shown that the Inferior Vena Cava Collapsibility Index (IVCCI) can be used to assess volume status. One limitation of the previous work is that changes in intra-thoracic pressure can influence this measurement, and the magnitude of this effect has never been described. The investigators aim is to correlate the degree of change in IVCCI with the set degree of change in intra-thoracic pressure in a heterogeneous population of critically ill patients.
Initially eligible patients will be those admitted to the OSU MICU and 8ICU within the prior 48 hours. These patients will be screened for predetermined exclusion criteria. Eligible patients will have their IVCCI measured and baseline peak and plateau pressures noted. For those patients meeting a second set of criteria, a common ventilator maneuver will be preformed. The positive end-expiratory pressure will be increased by 5-10 cm/H20 pressure. This procedure will be aborted if ANY safety criteria are exceeded. During the interval, the IVCCI will be re-measured, the ventilator settings will be recorded, and the ventilator will be return to the initial settings. Since changes of these same magnitude are made daily in clinical practice, the risks to the patients in this study will be minimal and no more than that experienced in the course of usual care.
Observational Model: Cohort, Time Perspective: Prospective
The Ohio State University
Enrolling by invitation
Ohio State University
Published on BioPortfolio: 2014-07-23T21:08:54-0400
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Mechanical devices used to produce or assist pulmonary ventilation.
Mechanical ventilation delivered to match the patient's efforts in breathing as detected by the interactive ventilation device.
A chronic lung disease developed after OXYGEN INHALATION THERAPY or mechanical ventilation (VENTILATION, MECHANICAL) usually occurring in certain premature infants (INFANT, PREMATURE) or newborn infants with respiratory distress syndrome (RESPIRATORY DISTRESS SYNDROME, NEWBORN). Histologically, it is characterized by the unusual abnormalities of the bronchioles, such as METAPLASIA, decrease in alveolar number, and formation of CYSTS.
Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2).
Pulmonary relating to or associated with the lungs eg Asthma, chronic bronchitis, emphysema, COPD, Cystic Fibrosis, Influenza, Lung Cancer, Pneumonia, Pulmonary Arterial Hypertension, Sleep Disorders etc Follow and track Lung Cancer News ...