The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.

Bibliographic Details
Main Author: Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology
Other Authors: Roger Mark.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2008
Subjects:
Online Access:http://hdl.handle.net/1721.1/41629
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author Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology
author2 Roger Mark.
author_facet Roger Mark.
Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology
author_sort Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology
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description Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.
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spelling mit-1721.1/416292019-04-12T16:07:54Z The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology Roger Mark. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007. Includes bibliographical references (p. 74-76). Acute Respiratory Distress Syndrome (ARDS) is a severe lung illness characterized by inflammation and fluid accumulation in the respiratory system. Historically, ARDS and other forms of respiratory failure have been treated using mechanical ventilation to help maintain gas exchange in the lungs. However, clinical investigators are beginning to discover the adverse effects of mechanical ventilation if it is not applied properly. Specifically, excessive ventilator volumes and pressures may exacerbate existing lung injury and increase hospital mortality. Furthermore, aggressive ventilation may cause lung injury and trigger an inflammatory response that is characteristic of ARDS. These findings have alarmed the critical care community, and many studies have been conducted to find mechanical ventilator settings that reduce mortality in patients with ARDS. However, there have been no firm recommendations on the optimal settings for patients who require ventilator therapy for reasons apart from respiratory failure. In this thesis, we retrospectively examine a large medical database (MIMIC-II) to study the relationship between mechanical ventilation and the development of ARDS. Specifically, our goals are to (1) find patients who did not have ARDS at the beginning of mechanical ventilation but who later developed the disease; (2) identify physiologic and ventilator-associated risk factors for ARDS; and (3) develop a text analysis algorithm to automatically extract clinical findings from radiology (chest x-ray) reports. Our findings suggest that acute respiratory distress syndrome is a relatively common illness in patients who require mechanical ventilation in the ICU (152 of 789 without ARDS at the outset eventually developed the disease). (cont.) High plateau pressure (odds ratio 1.5 per 6.3 cmH20, p < 0.001) is the most important ventilator-associated risk factor for the development of new ARDS. Physiologic risk factors include high weight, low blood pH, high lactate, pneumonia, and sepsis. Thus it may be possible to reduce the occurrence of ventilator-induced lung injuries with careful pressure management. However, a randomized prospective study is needed to support this hypothesis. by Xiaoming Jia. M.Eng. 2008-05-19T16:02:51Z 2008-05-19T16:02:51Z 2007 2007 Thesis http://hdl.handle.net/1721.1/41629 216925993 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 76 p. application/pdf Massachusetts Institute of Technology
spellingShingle Electrical Engineering and Computer Science.
Jia, Xiaoming, M. Eng. Massachusetts Institute of Technology
The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title_full The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title_fullStr The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title_full_unstemmed The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title_short The effects of mechanical ventilation on the development of Acute Respiratory Distress Syndrome
title_sort effects of mechanical ventilation on the development of acute respiratory distress syndrome
topic Electrical Engineering and Computer Science.
url http://hdl.handle.net/1721.1/41629
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