José Antonio Fiz1, Marcos Faundez-Zanuy2, Enrique Monte-Moreno3, Josep Roure Alcobé4, Felipe Andreo5, Rosa Gomez6, Juan Ruiz Manzano7. 1. Pulmonology Department, Hospital Universitari Germans Trias Pujol, Badalona, Spain(1); TALP Research Center, UPC, Barcelona, Spain(3). Electronic address: jafiz@msn.com. 2. Escola Universitària Politècnica de Mataró, Tecnocampus Mataró, Spain(2). Electronic address: faundez@eupmt.es. 3. TALP Research Center, UPC, Barcelona, Spain(3). Electronic address: enric.monte@upc.edu. 4. Escola Universitària Politècnica de Mataró, Tecnocampus Mataró, Spain(2). Electronic address: roure@tecnocampus.cat. 5. Pulmonology Department, Hospital Universitari Germans Trias Pujol, Badalona, Spain(1). Electronic address: fandreo@separ.es. 6. Pulmonology Department, Hospital Universitari Germans Trias Pujol, Badalona, Spain(1). Electronic address: gomezmendezrosamaria8@gmail.com. 7. Pulmonology Department, Hospital Universitari Germans Trias Pujol, Badalona, Spain(1). Electronic address: jruizmanzano.germanstrias@gencat.cat.
Abstract
BACKGROUND: Chronic hypoxemia has deleterious effects on psychomotor function that can affect daily life. There are no clear results regarding short term therapy with low concentrations of O2 in hypoxemic patients. We seek to demonstrate, by measuring the characteristics of drawing, these effects on psychomotor function of hypoxemic patients treated with O2. METHODS: Eight patients (7/1) M/F, age 69.5 (9.9) yr, mean (SD) with hypoxemia (Pa O2 62.2 (6.9) mmHg) performed two drawings of pictures. Tests were performed before and after 30 min breathing with O2. RESULTS: Stroke velocity increased after O2 for the house drawing (i.e. velocity 27.6 (5.5) mm/s basal, 30.9 (7.1) mm/s with O2, mean (SD), p<0.025, Wilcoxon test). The drawing time 'down' or fraction time the pen is touching the paper during the drawing phase decreased (i.e. time down 20.7 (6.6) s basal, 17.4 (6.3) s with O2, p<0.017, Wilcoxon test). CONCLUSIONS: This study shows that in patients with chronic hypoxemia, a short period of oxygen therapy produces changes in psychomotor function that can be measured by means of drawing analysis.
BACKGROUND:Chronic hypoxemia has deleterious effects on psychomotor function that can affect daily life. There are no clear results regarding short term therapy with low concentrations of O2 in hypoxemic patients. We seek to demonstrate, by measuring the characteristics of drawing, these effects on psychomotor function of hypoxemicpatients treated with O2. METHODS: Eight patients (7/1) M/F, age 69.5 (9.9) yr, mean (SD) with hypoxemia (Pa O2 62.2 (6.9) mmHg) performed two drawings of pictures. Tests were performed before and after 30 min breathing with O2. RESULTS:Stroke velocity increased after O2 for the house drawing (i.e. velocity 27.6 (5.5) mm/s basal, 30.9 (7.1) mm/s with O2, mean (SD), p<0.025, Wilcoxon test). The drawing time 'down' or fraction time the pen is touching the paper during the drawing phase decreased (i.e. time down 20.7 (6.6) s basal, 17.4 (6.3) s with O2, p<0.017, Wilcoxon test). CONCLUSIONS: This study shows that in patients with chronic hypoxemia, a short period of oxygen therapy produces changes in psychomotor function that can be measured by means of drawing analysis.