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1.
Rev. méd. IMSS ; 36(6): 441-5, nov.-dic. 1998. tab
Article in Spanish | LILACS | ID: lil-252205

ABSTRACT

Objetivo: medir el estado metabólico, el gasto energético en reposo (GER) y el cociente respiratorio (CR) de pacientes con pancreatitis aguda grave (PAG) con y sin sepsis asociada. Material y métodos; Se evaluaron 10 pacientes con PAG; todos estaban con ventilación mecánica controlada y sedados. Para medir el GER y El CR se realizó calorimetría indirecta (CI). El estado metabólico de los pacientes se obtuvo comparando el gasto energético en reposo medido (GERm) con el gasto energético calculado (GERc), obtenido por la fórmula de harris-Benedict basal de acuerdo con la calsificación de Feurer y Foster. Se midió la excreción de nitrógeno ureico urinario (NUU) en orina de 24 horas. Resultados; siete pacientes estaban hipermetabólicos (Germ > 10 por ciento GERc). Al realizar el promedio del GERm éste fue 25 por ciento mayor que el GERc en cinco pacientes con PAG y sepsis (1958 ñ 170 versus 1568 ñ 138 Kcal/día) y 15 por ciento en dos de tres pacientes con PAG sin sepsis (1916 ñ 170 versus 1663 ñ 164 Kcal/día). El CR fue de 0.95 ñ 0.05 y de 0.85 ñ 0.04 en los pacientes con PAG con y sin sepsis respectivamente. Dos pacientes con PAG y sepsis se encontraron normometabólicos (Germ en tres 0 a 9 por ciento versus GERc), un paciente con PAG sin sepsis se encontró hipometabólico (GERm < 10 por ciento GERc). El promedio de la excreción de NUU fue de 15.5 g/día. Conclusión: la medición del GER por CI demostró que 70 por ciento de los pacientes con PAG se encontraban hipermetabólicos. En los pacientes con PAG el GERm se incrementa en promedio 15 por ciento; este incremento llega hasta 25 por ciento cuando existe sepsis asociada. Los resultados del CR sugieren una utilización de sustraro energético mixto. El catabolismo proteínico de pacientes con pancreatitis aguda grave es intenso


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Pancreatitis/metabolism , Respiratory Transport , Acute Disease , Critical Illness , Energy Metabolism
3.
Rev. med. (Säo Paulo) ; 71(3/4): 44-9, mar. 1992. ilus, tab
Article in Portuguese | LILACS | ID: lil-140201

ABSTRACT

Nesta revisao sao apresentados alguns aspectos da influencia dos hormonios sexuais sobre os epitelios, com enfase para o transporte mucociliar do aparelho respiratorio. A modulacao hormonal do epitelio das vias aereas pode ser um dos fatores capazes de explicar as diferentes taxas de morbidade e mortalidade por doencas respiratorias entre homens e mulheres.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Respiratory Transport , Mucociliary Clearance , Gonadal Steroid Hormones/metabolism , Cilia/metabolism , Respiratory Tract Diseases/epidemiology , Lung/physiopathology
4.
Indian J Physiol Pharmacol ; 1991 Oct; 35(4): 245-8
Article in English | IMSEAR | ID: sea-108479

ABSTRACT

Cardiopulmonary efficiency was studied in 18 Indian medical students and 19 state level athletes by estimating maximal oxygen uptake (VO2 max), and other parameters related to oxygen transport i.e., heart rate, O2 pulse, respiratory quotient, ventilation volume, breathing reserve and dysponoeic index, following graded exercise on a treadmill. Higher VO2 max observed in athletes, was due to higher stroke volume and arterio-venous O2 difference. Though athletes had higher breathing reserve at VO2 max work load, their dysponoeic index and ventilation volume at VO2 max did not differ significantly from non-athletes suggesting that athletes were economical in expending energy for work of breathing during exercise.


Subject(s)
Adult , Cardiovascular Physiological Phenomena , Humans , Physical Fitness/physiology , Pulse/physiology , Respiratory Function Tests , Respiratory Transport/physiology , Sports
5.
Article in English | IMSEAR | ID: sea-95026

ABSTRACT

Pulmonary functions were studied in twenty hyperthyroid non smoker patients. Their FVC, PEFR and MVV were significantly lowered while FEV1/FVC% and EFR25-75% were normal. Amongst the diffusion functions, Tlco, Dm and VA were reduced and VC increased, though these changes were not statistically significant. After the achievement of euthyroid state, statistically significant increase was seen in FVC, PEFR, MVV, Tlco120, Dm and VA with significant decrease in Vc from the basal levels. FEV1/FVC% and EFR25-75% were not affected. These observations suggest that the principal abnormalities in pulmonary functions in the hyperthyroid state are increased pulmonary capillary blood volume and respiratory myopathy, which are reversed as euthyroid state is achieved.


Subject(s)
Adult , Female , Humans , Hyperthyroidism/physiopathology , Male , Respiratory Function Tests , Respiratory Transport , Sensitivity and Specificity
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