References of "Martinez, Christophe"
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See detailValve aortique percutanée
ERPICUM, Marie ULg; DEFRAIGNE, Jean ULg; LANCELLOTTI, Patrizio ULg et al

in Urgences & Accueil (2010), 11(40), 6-8

Transcatheter aortic valve implantation (TAVI) is increasingly performed and represents a relatively safe alternative treatment for high risk patients denied to surgical aortic valve replacement. TAVI is ... [more ▼]

Transcatheter aortic valve implantation (TAVI) is increasingly performed and represents a relatively safe alternative treatment for high risk patients denied to surgical aortic valve replacement. TAVI is performed at the University Hospital of Liege since July 2008 with the Medtronic CoreValve Revalving® system by femoral or subclavian access. This paper exposed the technique of TAVI and the nursing care required after this procedure. [less ▲]

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See detailLe cas clinique du mois. A propos d'une presentation inhabituelle de syndrome cave superieur
Monami, Catherine; Martinez, Christophe ULg; Ghuysen, Alexandre ULg et al

in Revue Médicale de Liège (2000), 55(10), 905-9

We report the case of a 48-year-old man who was admitted to our emergency department because of a superior vena caval syndrome from which the symptoms occurred only during exercise. His past history ... [more ▼]

We report the case of a 48-year-old man who was admitted to our emergency department because of a superior vena caval syndrome from which the symptoms occurred only during exercise. His past history included an episode of lower limb deep venous thrombosis. Because an atrio-ventricular partial block was fortuitously evidenced, the patient was submitted to a pacemaker insertion. A few years later, the patient suffered from rapid dyspnea on exercise, associated with facial cyanosis and systemic hypotension. The exploration by phlebography evidenced that the inferior vena cava was completely obstructed. Therefore the venous return from the lower part of the body to right heart was obtained through hypertrophy of the vena azygos. In addition, the presence of cardiac pacing electrodes induced a stenosis at the level of the superior vena cava, just before its entrance into the right atrium. Such a venous network accounted for the occurrence of a chronic superior vena caval syndrome associated with peripheral arterial hypotension during exercise. Treatment consisted of a superior vena caval percutaneous transluminal balloon angioplasty followed by a Wallstent insertion. This procedure led to a correction of all hemodynamic abnormalities responsible for reported pathophysiological limitations to stress. [less ▲]

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See detailPressure-Flow Relationships of the Pulmonary Circulation During Endotoxin Infusion in Intact Dogs
D'Orio, Vincenzo ULg; Fatemi, M.; Marnette, J. M. et al

in Critical Care Medicine (1992), 20(7), 1005-13

BACKGROUND AND METHODS: We aimed to characterize the effects of an endotoxin insult (Escherichia coli 0127:B8) on the relationships between pulmonary vascular pressure and flow in intact dogs. To achieve ... [more ▼]

BACKGROUND AND METHODS: We aimed to characterize the effects of an endotoxin insult (Escherichia coli 0127:B8) on the relationships between pulmonary vascular pressure and flow in intact dogs. To achieve this goal, multipoint plots of total pressure gradient, arterial pressure gradient, and venous pressure gradient vs. flow were generated by graded inflation of a right atrial balloon, which was used to vary flow. The partitioning of the total pressure decrease across the pulmonary vasculature (total pressure gradient = pulmonary arterial pressure-pulmonary artery occlusion pressure [PAOP]) into gradients across pulmonary arterial (arterial pressure gradient = pulmonary arterial pressure--effective capillary pressure) and pulmonary venous (venous pressure gradient = effective capillary pressure--PAOP) regions was assessed by a waveform mathematical analysis of the pulmonary arterial pressure profile during arterial occlusion, with computation of both PAOP and effective pulmonary capillary pressures. Slopes and extrapolated pressure intercepts from linear regression fits to the pulmonary vascular pressure/flow plots were determined in seven dogs after a 2-hr endotoxic infusion interval and were compared with the corresponding values that characterized a similar group of sham-operated dogs. RESULTS: Under normal conditions, the extrapolated pressure intercept for pulmonary arterial pressure gradient was virtually 0 mm Hg; for total pulmonary arterial pressure gradient and pulmonary venous pressure gradient, the mean extrapolated pressure intercepts were substantially positive: 2.4 +/- 0.2 and 2.1 +/- 0.3 mm Hg, respectively. Endotoxin infusion at 0.25 micrograms/kg/min significantly increased the pressure intercepts from 2.4 to 8.7 and from 2.1 to 8.3 mm Hg of total pressure gradient and venous pressure gradient vs. flow, respectively. This infusion produced a minor, nonsignificant change in the intercept of arterial pressure gradient vs. flow, whereas it increased its slope significantly (p less than .05) from 0.036 to 0.081 mm Hg/mL/min/kg. CONCLUSIONS: These data suggest that endotoxin's effects on vascular resistance are exerted at two different loci such that these effects are additive. These endotoxin-induced effects consisted of increased vascular resistance of the arterial segment and appearance of a Starling resistor at the venous side of the pulmonary circulation, which acted as the relevant back-pressure to flow. [less ▲]

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See detailPulmonary arterial impedance and right ventricular function in a canine model of septic shock
D'Orio, Vincenzo ULg; MARTINEZ, Christophe ULg; SAAD, G et al

in Intensive Care Medicine (1992), 18-S2

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See detailPulmonary artery pressure-flow plots in septic shock dogs : effects of PGE 1 and nitroprusside
D'Orio, Vincenzo ULg; MARTINEZ, Christophe ULg; SAAD, G et al

in Intensive Care Medicine (1992), 18-S2

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See detailLung fluid balance during recovery of appropriate supply-oxygen uptake ratio with volume loading in septic shock dogs
D'Orio, Vincenzo ULg; FATEMI, M; MENDES, P et al

in American Review of Respiratory Disease (1991), 143

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See detailCritical closure in the canine pulmonary vasculature : effects of endotoxin insult
D'Orio, Vincenzo ULg; FATEMI, M; MENDES, P et al

in American Review of Respiratory Disease (1991), 143

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See detailBasal and postexercise CK 2 concentrations in a group of well trained athletes evaluated by chemiluminescent assay
Ordonez, J.; Chapelle, Jean-Paul ULg; Serra, J. R. et al

Poster (1990, October)

Detailed reference viewed: 2 (0 ULg)