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220 results on '"Cupa M"'

9. Anaphylaxis to rocuronium

Author

Baillard, C., Korinek, A. M., Galanton, V., Le Manach, Y., Larmignat, P., Cupa, M., and Samama, C. M.

Published
2002

19. Computerized Report of Anesthesia (C.R.A.)

Author

Pourriat, J. L., Rathat, Ch., Larmignat, Ph., Huet, B., Cupa, M., Lindberg, D. A. B., editor, Reichertz, P. L., editor, Roger, F. H., editor, Willems, J. L., editor, O’Moore, R. R., editor, and Barber, B., editor

Published
1984
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27. Study of the 'sniffing position' by MRI

Author

Adnet, F., primary, Borron, S. W., additional, Petrovic, T., additional, Bernot, B., additional, Beruben, A., additional, Lapostolle, F., additional, Wipf, P., additional, Lapandry, C., additional, and Cupa, M., additional

Published
2000
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41. Steady-state Breathing Pattern Responses to Small Inspiratory Resistive Loads in COPD Patients

Author

Pourriat, J.L., Lamberto, Ch., Fosse, J.P., Vasseur, B., and Cupa, M.

Abstract

We investigated the effect of small inspiratory resistive loads on the breathing patterns of patients with COPD admitted to the ICU for acute respiratory failure. Patients were in stable clinical condition three days after weaning from the acute-phase ventilation. Healthy nonsmokers served as controls. Breathing patterns were recorded for 20-min periods during unloaded breathing (RO), then with small inspiratory resistive loads (R1=2.5 cmH2O L/s and R2 = 5.2 cmH2O L/s) applied in random order. Respiratory parameters were memorized in real time and blood gases measured continuously with a transcutaneous PO,/PCO2monitor and compared periodically with arterial blood gases. Minute volume (VE) and respiratory rate decreased with no modification in blood gas values. In the COPD patients, R1 was too small to be perceived; when R2 was applied, no increase in TI was observed, and VT and VT/TI decreased. The VE could not be maintained despite a shortening of expiratory time. The COPD patients did not have significant increase of occlusion pressure (P0.1). Mean blood gas values did not change during the testing, but the coefficient of variation of tcPCO2, increased. During the critical period following weaning from artificial ventilation, COPD patients did not respond in the same manner as normal subjects to inspiratory resistive loads, but did not have modified gas exchange during the 20-min period.

Published
1989
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42. Measurement of CO2response with the breath-by-breath automatic acquisition of the breathing pattern and occlusion pressure

Author

Pourriat, J. L., Baud, M., Lamberto, Ch., Fournier, J. L., and Cupa, M.

Abstract

Objective.Our objective is to present a methodology for the automated acquisition and storage of BP and P0.1during a CO2rebreathing test.Methods.The system consists of a microcomputer with additional circuits and an automatic electronically controlled valve to occlude the inspiratory airway. Data collection and data processing are separate programs. Airway pressure and flow are digitized at a 100-Hz rate, whilePetCO2is determined and P0.1is measured on a breath-by-breath basis. Off-line processing calculates the BP variables, generates a correlation matrix (Ve/PetCO2,Ttot/PetCO2,Ti/PetCO2,Te/PetCO2, [Vt/Ti]/PetCO2, [Ti/Ttot]/PetCO2, P0.1/PetCO2), and edits graphic data. The accuracy of the volume and pressure measurements was tested by comparing known volumes provided by a syringe (n=100) and a series of pressures controlled by a water manometer (n=41) on the one hand, with volumes and pressures measured by the device. The accuracy of the time intervals and P0.1was assessed by comparing in 10 healthy subjects the values measured manually on a graphic recording with those provided by the device (n=170).Results.Volumes: Vmeasured=0.99×Vcontrolled,r=0.99,p<0.001. Pressures: Pmeasured=0.97×Pcontrolled+0.09,r=0.98,p<0.001. Inspiratory time:Tiautomatic=0.91×Tigraphic+0.22,r=0.93,p<0.001. Expiratory time:Teautomatic=0.93×Tegraphic+0.34,r=0.95,p<0.001. Occlusion pressure: P0.1automatic=0.95×P0.1graphic+0.62,r=0.94,p<0.001. Reproducibility was assumed to be represented by the intraindividual coefficient of variation of the CO2response. The comparison of an automatic breath-to-breath method with a graphic manual recording revealed significantly less variability with the former (Ve/PetCO2: 15.2±4.5% vs 22.5±6.3%,p<0.01; P0.1/PetCO2: 8.3±4.3% vs 19.7±7.2%,p<0.001; [Vt/Ti]/PetCO2: 9.1±3.5% vs 14.5±5.3%,p<0.05).Conclusion.Our automated acquisition and storage of waveforms and breath-by-breath determination of BP and P0.1provide an easy and thorough analysis of the respiratory response to CO2and decrease the variability of the results.

Published
1994
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