Background: Respiratory complications are the main causes of increased morbidity and mortality in individuals who undergo upper abdominal surgery. The effi cacy of physical therapy procedures needs clarifi cation, and it is necessary to know which therapeutic approaches are the best ones to implement. Objective: To compare the inspiratory volume during the breath stacking maneuver with the volu...

This study aims to assess regional ventilation, nonlinearity, and hysteresis of human lungs during dynamic breathing via image registration of four-dimensional computed tomography (4D-CT) scans. Six healthy adult humans were studied by spiral multidetector-row CT during controlled tidal breathing as well as during total lung capacity and functional residual capacity breath holds. Static images ...

PURPOSE: MR is a compelling imaging modality for children, free of risks of ionizing radiation of CT and nuclear scintigraphy studies. However, motion corrupts MR images, so children often undergo deep anesthesia and periods of suspended respiration, particularly for body MR exams. This prolongs studies and has its risks. Leveraging recent advancements in accelerated imaging and motion correcti...

............................................................................................................................. 1 SVENSK SAMMANFATTNING ......................................................................................... 2 LIST OF PAPERS.................................................................................................................... 3 ABBREVIATIONS ...........

It has been widely believed that human free divers were immune to decompression sickness because the only inert gas added during a breath-hold dive is the nitrogen (N2) that remains in the lungs from the inhalation before submerging. However, there has been anecdotal evidence from case reports of divers suffering neurological symptoms after repeated free dives. In breath-hold divers of the Tuam...

After emergence from anesthesia, the incidence and severity of adverse airway effects caused by the laryngeal mask airway (LMA) can vary, depending on when the device was removed; nonetheless, reports differ regarding the exact optimal timing of LMA removal. The purpose of this study was to compare the rate of adverse events between 2 groups: those whose LMA was removed under general anesthesia...