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1.
Sci Rep ; 9(1): 17717, 2019 11 27.
Article in English | MEDLINE | ID: mdl-31776427

ABSTRACT

Global mean sea level has experienced an unabated rise over the 20th century. This observed rise is due to both ocean warming and increasing continental freshwater discharge. We estimate the net ocean mass contribution to sea level by assessing the global ocean salt budget based on the unprecedented amount of in situ data over 2005-2015. We obtain the ocean mass trends of 1.30 ± 1.13 mm · yr-1 (0-2000 m) and 1.55 ± 1.20 mm · yr-1 (full depth). These new ocean mass trends are smaller by 0.63-0.88 mm · yr-1 compared to the ocean mass trend estimated through the sea level budget approach. Our result provides an independent validation of Gravity Recovery And Climate Experiment (GRACE)-based ocean mass trend and, in addition, places an independent constraint on the combined Glacial Isostatic Adjustment - the Earth's delayed viscoelastic response to the redistribution of mass that accompanied the last deglaciation- and geocenter variations needed to directly infer the ocean mass trend based on GRACE data.

2.
Anaesth Crit Care Pain Med ; 34(1): 41-4, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25829314

ABSTRACT

OBJECTIVE: To determine the effect of implementing a daily lung ultrasound round on the number of chest radiographs and chest computed tomography (CT) scans in a polyvalent intensive care unit (ICU). STUDY DESIGN: Retrospective study comparing two consecutive periods. PATIENTS: All patients hospitalized for longer than 48 hours in a polyvalent ICU. METHODS: Implementation of a daily lung ultrasound round after a short educational program. The number of chest radiographs and chest CT scans and the patient outcome were measured before (group PRE) and after (group POST) the implementation of a daily lung ultrasound round. RESULTS: No demographic difference was found between the two groups, with the exception of a higher severity score in the group POST. For each ICU stay, the number of chest radiographs was 10.3 ± 12.4 in the group PRE and 7.7 ± 10.3 in the group POST, respectively (P<0.005) The number of chest CT scans was not reduced in the group POST, as compared with the group PRE (0.5 ± 0.7 CT scan/patient/ICU stay versus 0.4 ± 0.6 CT scan/patient/ICU stay, P=0.01). The ICU mortality was similar in both groups (21% versus 22%, P=0.75) CONCLUSION: The implementation of a daily lung ultrasound round was associated with a reduction in radiation exposure and medical cost without altering patient outcome.


Subject(s)
Intensive Care Units/organization & administration , Lung/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Aged , Female , Hospital Mortality , Humans , Intensive Care Units/economics , Length of Stay , Male , Middle Aged , Radiography, Thoracic , Respiration, Artificial , Retrospective Studies , Severity of Illness Index , Tomography, X-Ray Computed/economics , Treatment Outcome , Ultrasonography
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