Static lung volumes in healthy subjects assessed by helium dilution during occlusion of one mainstem bronchus.
نویسندگان
چکیده
منابع مشابه
Static lung volumes in healthy subjects assessed by helium dilution during occlusion of one mainstem bronchus.
BACKGROUND Single lung function is usually assessed by radioisotopes or, more rarely, by bronchospirometry in which a double lumen catheter is used to separate ventilation of the two lungs. The latter is more precise but less comfortable. An alternative bronchoscopic method is described for determining the volume of a single lung. METHODS One mainstem bronchus was temporarily occluded with an...
متن کاملMultiple breath helium dilution measurement of lung volumes in adults.
This manuscript recommends techniques (methodology) for the measurement of total lung capacity (TLC), functional residual capacity (FRC) and residual volume (RV) in adults using the closed-circuit helium dilution method. Lung volumes were first measured using a hydrogen gas dilution technique about 200 yrs ago. Helium replaced hydrogen for safety reasons 40–50 yrs ago when clinicians started to...
متن کاملAcute occlusion of a mainstem bronchus by a rapidly expanding foreign body.
We report a case of an 85-year-old woman who presented with acute respiratory failure, caused by aspirating a sucralfate tablet that totally occluded her left main-stem bronchus. Acute respiratory failure resolved after bronchoscopic removal of the markedly expanded tablet. To our knowledge, the acute obstruction of a main-stem bronchus by an aspirated foreign body has not been previously descr...
متن کاملCan the single-breath helium dilution method predict lung volumes as measured by whole-body plethysmography?*
OBJECTIVE To compare TLC and RV values obtained by the single-breath helium dilution (SBHD) method with those obtained by whole-body plethysmography (WBP) in patients with normal lung function, patients with obstructive lung disease (OLD), and patients with restrictive lung disease (RLD), varying in severity, and to devise equations to estimate the SBHD results. METHODS This was a retrospecti...
متن کاملComparison of helium dilution and plethysmographic lung volumes in pregnant women.
The multibreath helium equilibration method is the technique recommended for routine measurement of static lung volumes in normal subjects. However, pregnancy could be an exception to this general rule, due to airway closure during the second half of gestation. The aim of this study was to compare the measurements of lung volumes by plethysmography and helium dilution during pregnancy. Twenty t...
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ژورنال
عنوان ژورنال: Thorax
سال: 1993
ISSN: 0040-6376
DOI: 10.1136/thx.48.4.381