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Titolo:
ARTERIAL AND MIXED VENOUS OXYGEN DESATURATION DURING INCREMENTAL EXERCISE IN PATIENTS WITH CHRONIC PULMONARY-DISEASE
Autore:
YAMAMOTO T; KIMURA H; OKADA O; KATOH K; TANABE N; YASUDA J; YOSIDA Y; KURIYAMA T;
Indirizzi:
CHIBA ROSAI HOSP,DEPT INTERNAL MED,2-16 TATSUMIDAI HIGASHI ICHIHARA CHIBA 290 JAPAN CHIBA UNIV,SCH MED,INST PULM CANC RES,DEPT CHEST MED CHIBA 280 JAPAN
Titolo Testata:
Internal medicine
fascicolo: 3, volume: 37, anno: 1998,
pagine: 280 - 285
SICI:
0918-2918(1998)37:3<280:AAMVOD>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSPORT;
Keywords:
TISSUE HYPOXIA; EXERCISE TEST; PULMONARY HEMODYNAMICS; OXYGEN TRANSPORT; COEFFICIENT OF OXYGEN DELIVERY (COD);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
T. Yamamoto et al., "ARTERIAL AND MIXED VENOUS OXYGEN DESATURATION DURING INCREMENTAL EXERCISE IN PATIENTS WITH CHRONIC PULMONARY-DISEASE", Internal medicine, 37(3), 1998, pp. 280-285

Abstract

We evaluated arterial and mixed venous oxygen desaturation during symptom-limited exercise in patients with chronic pulmonary disease. Patients were divided into five groups according to disease: [chronic pulmonary emphysema (CPE), chronic bronchitis (CB), pulmonary tuberculosissequalae (TB-seq), fibrosing lung disease (FLD), and pulmonary vascular disease (PVD)]. There were no significant difference in the values of arterial (PaO2) and mixed venous (P (v) over bar O-2) oxygen tension before and at the end of exercise among the five groups, whereas absolute decreases in P (v) over bar O-2 were significantly larger in PVDand FLD. The changes in P (v) over bar O-2 were similar to the changes in the coefficient of oxygen delivery (COD) which is equal to oxygentransport divided by oxygen consumption. These results suggest that the relative decrease in oxygen transport during exercise due to the high ratio of oxygen extraction by tissues is an important factor to determine decreases in P (v) over bar O-2 in pulmonary hypertensive disease and fibrosing lung disease.

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Documento generato il 12/08/20 alle ore 20:34:23