STUDY OBJECTIVE To compare the diagnostic performance of volumetric capnography (VCap), which is the plot of the expired CO(2) partial pressure against the expired volume during a single breath, with the PaCO(2) to end-tidal CO(2) (EtCO(2)) gradient, in the case of suspected pulmonary embolism (PE). DESIGN Single-center, prospective study. SETTING Emergency department of a teaching hospital...

Paco López-Dekker, Francesco De Zan, Steffen Wollstadt, Marwan Younis, Richard E. Danielson, Volker Tesmer, and Luis Martins Camelo § German Aerospace Center (DLR), Microwaves and Radar Institute Oberpfaffenhofen, Germany Email: [email protected] Nansen Environmental and Remote Sensing Center (NERSC), Norway OHB System AG, Bremen, Germany MacDonald, Dettwiler and Associates (MDA), Ca...

PURPOSE Acetazolamide was previously shown to increase optic disc partial pressure of oxygen (PO(2)). The study was conducted to evaluate optic disc PO(2) variations during normoxia, hyperoxia (100% O(2)), and carbogen breathing (95% O(2), 5% CO(2)), before and after intravenous administration of acetazolamide. METHODS PO(2) measurements were obtained at intervascular areas of the optic disc ...

This article proposes an improved modular design methodology of a power-split plug-in hybrid electric vehicle (PHEV) that introduces advanced electrothermal coupled model and temperature-related subobjective to simultaneously reveal battery thermal electrical dynamics in the design. Considering provide customers with more optimal configuration solutions, Pareto-augmented collaborative optimizat...

INTRODUCTION Automatic titration modes of non-invasive ventilation, including average volume assured pressure support (AVAPS), are hybrid technologies that target a set volume by automated adjustment of pressure support (PS). These automated modes could offer potential advantages over fixed level PS, in particular, in patients who are super obese. METHODS Consecutive patients with obesity hyp...

INTRODUCTION The beneficial effect of low tidal volume (TV) ventilation strategy on mortality in patients with acute respiratory distress syndrome (ARDS) has been attributed to the protective effect on ventilator-induced lung injury, and yet its effect on cardiovascular function might also play an important role. The aim of this study was to assess whether low TV ventilation improves cardiac ou...

PURPOSE To investigate dark adaptation during hypoxia in patients with chronic respiratory failure. METHODS At three visits, dark adaptation was recorded by computerized dark adaptometry in 13 patients with chronic respiratory insufficiency treated by long-term oxygen therapy. At visits 1 and 3, the patients were administered their usual oxygen supplement. At visit 2, no oxygen was given. At ...

BACKGROUND Carbon dioxide (CO(2)) has different biophysical properties under different thermal conditions, which may affect its rate of absorption in the blood and the related adverse events. The present study was aimed to investigate the effects of heating of CO(2) on acid-base balance using Stewart's physiochemical approach, and body temperature during laparoscopy. METHODS Thirty adult pati...

We measured the field potential and the changes in local cerebral blood flow (LCBF) response during somatosensory activation (evoked LCBF) in alpha-chloralose--anesthetized rats by laser-Doppler flowmetry under normocapnia (PaCO(2)=34.3+/-3.8 mmHg) and hypercapnia (PaCO(2)=70.1+/-9.8 mmHg). Somatosensory activation was induced by electrical stimulation (0.2, 1, and 5 Hz with 1.5 mA for 5 s) of ...