Respiratory dataset from PEEP study with expiratory occlusion

A trial was conducted to collect gauge pressure and flow from a venturi-based
flow-meter, dynamic abdominal and thoracic circumference from rotary-encoder
based tape measures, and aeration data from electrical impedance tomography
(EIT). Data was collected from 80 adults, breathing with continuous positive
airway pressure (CPAP) ventilation, under ethical consent from the University
of Canterbury Human Research Ethics Committee (HREC 2023/04/LR-PS). In each
subject's recording the positive end expiratory pressure (PEEP) was increased
from 4 to 12 cmH2O in 0.5 cmH2O increments, with data recorded for 30 seconds
at each level. Time was built in for researchers to change PEEP settings, in
which data continued to be collected. The recording also begins and ends with
a 60 second period of breathing without CPAP. During the trial subjects
breathed through a full-face mask and filter collected to the data collection
device and, when PEEP was applied, CPAP circuitry. A camera-shutter based
device was used to rapidly occlude the expiratory pathway to enable
identification of passive lung mechanics. Subjects were instructed to breathe
normally throughout the trial. Both raw and processed data is included in this
publication to maximise its utility. Subject demographic data was self-
reported using a questionnaire completed prior to each trial and is collated
in a spreadsheet as part of this dataset. The demographic data collected was
as follows: sex; height; weight; age; any history of asthma; smoking, or
vaping; and resting chest width and depth. Ultimately, this dataset was
collected to enable the development and validation of model-based respiratory
function assessment methods. These methods aim to increase the capacity of
automated testing, removing clinical burden of respiratory monitoring and
improving patient-specific care.