References of "Damas, Pierre"
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See detailTransplantation combinée du foie et du coeur chez un patient souffrant de thalassémie majeure
Detry, Olivier ULg; Defechereux, Thierry ULg; Honore, Pierre ULg et al

in Revue Médicale de Liège (1997), 52(8), 532-4

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See detailComparative evaluation of five hygroscopic condenser humidifiers during short-term postoperative mechanical ventilation
Sottiaux, Thierry; Meurice, F.; Mignolet, Ghislaine ULg et al

in Acta Anaesthesiologica Italica & Anaesthesia and Intensive Care in Italy (1997), 48(1-2), 59-68

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See detailScreening and characterization of specific anti-lipopolysaccharide antibodies in Belgian blood donors by enzyme-linked immunosorbent assays
Nys, Monique ULg; Laub, R.; Damas, Pierre ULg et al

in European Journal of Clinical Investigation (1996), 26(12), 1134-1142

The goal of this project was to find and collect high concentrations of endotoxin-specific antibodies for therapeutic IgG- or IgM-enriched preparations. Various enzyme-linked immunosorbent assays (ELISAs ... [more ▼]

The goal of this project was to find and collect high concentrations of endotoxin-specific antibodies for therapeutic IgG- or IgM-enriched preparations. Various enzyme-linked immunosorbent assays (ELISAs) were developed to perform longitudinal studies of the serological response to a large panel of smooth and rough purified lipopolysaccharide (LPS) extracts in a population of healthy blood donors. To accomplish this, 1612 human serum samples from volunteer blood donors collected by seven different blood banks in Belgium were screened and specific IgM and IgG activities were measured. Approximately 17% of the donors had anti-LPS concentrations higher than 40 mg L-1. Of these, 10.9% had anti-smooth LPS antibodies, 3.7% had anti-rough LPS antibodies and 2.8% were found to be positive towards both types of LPS. The mean anti-LPS antibody concentration was 8 mg L-1 for rough LPS and 14 mg L-1 for smooth LPS. Age- and sex-related distributions of the activities indicated that the greatest prevalence of high anti-LPS concentration was in women aged 40-49 years and in men older than 60 years. Differential absorption experiments showed that the pooled serum of selected blood donors contained a mixture of specific and cross-reacting antibodies. We detected predominantly anti-LPS activities due to the IgG1 and IgG2 subclasses. The range of specificities to different LPS was increased by the pooling of selected sera. It was concluded that pools of naturally occurring specific anti-LPS immunoglobulin antibodies may be obtained in Belgium by screening blood donors using ELISAs that we have developed. [less ▲]

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See detailLes fluoroquinolones
Damas, Pierre ULg

in Revue Médicale de Liège (1996), 51(1), 50-52

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See detailLes morphinomimétiques en réanimation
Lamy, Maurice ULg; Joris, Jean ULg; Damas, Pierre ULg et al

in Revue Janssen-Cilag (1996)

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See detailUn cas d'hyponatrémie sévère sous administration de pimozide (Orap)
LECLERCQ, Paul; Canivet, Jean-Luc; Damas, Pierre ULg et al

in Revue Médicale de Liège (1995), 50(4), 151-152

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See detailOpioids in intensive care
Lamy, Maurice ULg; Joris, Jean ULg; Damas, Pierre ULg et al

in Lawin, P.; Von Loewenich, V.; Schuster, H.-P. (Eds.) et al Intensivmedizin notfallmedizin anästhesiologie (1995)

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See detailInhaled nitric oxide for hemodynamic support after postpneumectomy ARDS
Chiche, Jean-Daniel; Canivet, Jean-Luc ULg; Damas, Pierre ULg et al

in Intensive Care Medicine (1995), 21(8), 675-678

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See detailLe pied diabétique: etiopathogénie, prévention et traitement
Van Damme, Hendrik ULg; Paquet, Philippe ULg; Maertens de Noordhout, B. et al

in Revue Médicale de Liège (1994), 49(1), 1-13

-Le pied diabétique est la conséquence des altérations dégénératives du système vasculonerveux observées dans un diabète de longue durée. La neuropathie diabétique est le facteur essentiel dans la plupart ... [more ▼]

-Le pied diabétique est la conséquence des altérations dégénératives du système vasculonerveux observées dans un diabète de longue durée. La neuropathie diabétique est le facteur essentiel dans la plupart des cas, responsable d'hypoalgésies, microtraumatismes et ulcérations, déformation du pied (amyotrophie), et d'une eutosympethectomie (peau sèche, fissurée). Une macroangiopathie (médiacalcinose, occlusions artérielles périphériques) n'est retrouvée que dans 30 % des cas. Une microangiopathie compromet la trophicité des tissus et ralentit leur cicatrisation. Enfin, tout diabétique présente une susceptibilité élevée aux infections. Cette multitude de facteurs en cause impose des mesures de prévention. Un équilibre du profil glycémique retardera les atteintes vasculo-nerveuses. L'hygiène du pied consistera en bains de pieds, soins d'ongles et d'hyperkératoses, chaussures adaptées. En cas de troubles trophiques, une décharge d'appui sers nécessaire. Une désinfection rigoureuse, associée à une antibiothérapie (après prélèvement, si possible) aidera à éviter l'évolution vers l'abcès profond. La moindre collection sera drainée, après excision large des tissus nécrotiques. Les nécroses sèches (talons, orteils) traduisent souvent une artériopethie, pour laquelle un geste de revascularisation (protondoolestie; pontage distal) pourra être pris en considération. Parfois, l'état septique du patient, ou l'étendue de la gangrène, imposera une amputation. L'approche du pied diabétique doit toujours être multidisciplinaire (diabétologue, dermatologue, orthésiste, orthopédiste, chirurgien vasculaire), et doit commencer par des mesures préventives. [less ▲]

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See detailARDS and sepsis: ressemblances and differences
Lamy, Maurice ULg; Deby, Ginette ULg; Damas, Pierre ULg

in Sibbald, W. J.; Vincent, Jean-Louis (Eds.) Clinical trials for the treatment of sepsis. Update in intensive care and emergency medicine (1994)

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See detailMassive Ketonuria During Sedation with Propofol in a 12 Year Old Girl with Severe Head Trauma
Canivet, Jean-Luc ULg; Gustad, K.; Leclercq, P. et al

in Acta Anaesthesiologica Belgica (1994), 45(1), 19-22

Severe ketonuria developed during sedation with propofol in a 12 year old girl with brain injury. Deep sedation with propofol (5.1 mg/kg/h) was required because of agitation and severe intracranial ... [more ▼]

Severe ketonuria developed during sedation with propofol in a 12 year old girl with brain injury. Deep sedation with propofol (5.1 mg/kg/h) was required because of agitation and severe intracranial hypertension; as a part of our management protocol, glucose intake was restricted to 5 Kcal/h. After 18 hours of propofol infusion there was intense ketonuria (8+ by Ketostix) without any evidence of metabolic acidosis (pH, HCO3- and anion gap were within normal values). At this time, indirect calorimetry (Deltatrac) confirmed that energy expenditure was principally based on fat consumption (70% of energy expenditure). Lowering the propofol infusion rate and increasing glucose intake reduced fat consumption to 39% within 8 hours: at this time, Ketostix was negative for ketone bodies. This case illustrates a potential risk of ketonuria during prolonged sedation with propofol (a 10% solution of intralipid), particularly if glucose intake is restricted. Monitoring urinary ketone bodies is recommended under these circumstances. [less ▲]

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See detailMalignant Hyperthermia and Severe Hypoglycemia after Reexposure to Halothane
Bichel, T.; Canivet, Jean-Luc ULg; Damas, Pierre ULg et al

in Acta Anaesthesiologica Belgica (1994), 45(1), 23-7

A four year child presented with an episode of malignant hyperthermia induced by reexposure to halothane. The episode was associated with early onset of a severe hypoglycemia and liver enzymatic ... [more ▼]

A four year child presented with an episode of malignant hyperthermia induced by reexposure to halothane. The episode was associated with early onset of a severe hypoglycemia and liver enzymatic perturbances. Etiology of these perturbances is hard to state precisely in this clinical context, but a hepatic toxicity of halothane and/or by dantrolene is considered. [less ▲]

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See detailComparative evaluation of three heat and moisture exchangers during short-term postoperative mechanical ventilation
Sottiaux, Thierry; Mignolet, Ghislaine ULg; Damas, Pierre ULg et al

in CHEST (1993), 104(1), 220-224

This study compared performance of three heat and moisture exchangers (HME) during short-term postoperative mechanical ventilation. Temperature and absolute humidity (AH) were measured at various points ... [more ▼]

This study compared performance of three heat and moisture exchangers (HME) during short-term postoperative mechanical ventilation. Temperature and absolute humidity (AH) were measured at various points of the ventilatory circuit. There was no statistical difference between the groups, regarding ambient and body To, body weight, fraction of inspired oxygen, tidal volume, and respiratory rate. Only the hygroscopic HME (groups 2 and 3) provide adequate conditioning with regard to AH and To of the inspiratory gases. The performance of hydrophobic HME (group 1) was inferior and appears to be unsatisfactory. Indirect evaluation (variations of inspiratory gases and tracheal temperatures, AH of the expired gases) confirmed the superiority of the hygroscopic HME. These data suggest that humidification of inspiratory gases with a hygroscopic HME is a defensible practice during short-term postoperative mechanical ventilation. Performance of hydrophobic HME may be weak and can expose the patient to an unacceptable risk of endotracheal tube occlusion. [less ▲]

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See detailSequential anti-core glycolipid immunoglobulin antibody activities in patients with and without septic shock and their relation to outcome
Nys, Monique ULg; Damas, Pierre ULg; Joassin, Luc et al

in Annals of Surgery (1993), 217(3), 300-306

OBJECTIVE: This study follows the sequential changes in anti-lipopolysaccharide antibodies in infected patients with and without septic shock. SUMMARY BACKGROUND DATA: A relation between high endogenous ... [more ▼]

OBJECTIVE: This study follows the sequential changes in anti-lipopolysaccharide antibodies in infected patients with and without septic shock. SUMMARY BACKGROUND DATA: A relation between high endogenous levels of anti-LPS antibodies and protection against bacteremia and septic shock in at-risk patient groups has been observed. However, information on the daily follow-up and kinetics of apparition or disappearance of anti-LPS antibody activities and their relations with the protective properties of the different immunoglobulin classes has not been clearly investigated. METHODS: Two hundred and five septic surgical patients were studied during their stay in the intensive care unit during a period of 3 years. Among these patients, septic shock developed in 54 and 47 died. A sensitive ELISA was used to study circulating IgM and IgG antibodies to the core glycolipid (CGL) region of Salmonella minnesota R595. The activities were measured each day when sepsis occurred and every hour during septic shock. RESULTS: Anti-CGL IgM activity was found in 32% of the septic patients. This response, however, most often appeared to be transient. A strong correlation was observed between the occurrence of septic shock and the absence of anti-CGL IgM activity on admission to the ICU (p < 0.02). Anti-CGL IgG activity was detected in 82% of the patients and better correlated with outcome for patients with high or rising activities during their hospitalization (p < 0.0005). In patients with septic shock or irreversible organ failure, a fall in the anti-CGL IgG activity was observed before death, suggesting that the IgG antibodies were consumed during this acute event. Therefore, the anti-CGL IgG activity measured by ELISA could be used as a marker of the evolution of the illness. CONCLUSIONS: Our observations demonstrate the interest to follow-up the evolution of the anti-CGL antibodies during sepsis. The fall of these antibodies during septic shock and in patients who died was an additional argument to perform, as an additive form, passive antibody therapy to decrease lethality in this group of patients. [less ▲]

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See detailAutres médiateurs de l'inflammation et du sepsis
Lamy, Maurice ULg; Deby, Ginette ULg; Damas, Pierre ULg

in Revue du Praticien (La) (1993), 43(1), 19-25

During sepsis, the systemic inflammatory response is characterized by the release of numerous mediators supporting and dispersing inflammation. In Gram negative sepsis, the endotoxins play a starting role ... [more ▼]

During sepsis, the systemic inflammatory response is characterized by the release of numerous mediators supporting and dispersing inflammation. In Gram negative sepsis, the endotoxins play a starting role, while in other sepsis, the triggering mediators or mechanisms are unknown but lead to a similar inflammatory reaction. Coagulation and complement cascades are activated, with the release of chemoattractive substances, mediators and proteases and the activation of phagocytic cells. Macrophages/monocytes and polymorphonuclear leucocytes produce then active oxygen species and cytokines; they degranulate (releasing active enzymes such as myeloperoxidase), they express an increasing number of membrane receptors able to interact with endothelial cells and release a supplementary lot of inflammatory mediators (prostanoids, platelet activating factor, leukotrienes ... ). Platelets, also activated, produce the same mediators (TXA2, PAF ...) or specific ones such as serotonine, platelet factor 4, growth factors. Last, but not least, the endothelial cells are stimulated, directly (by endotoxins) or undirectly (by cytokines, C5a, PAF ...). These cells play then a main role by their own phagocytic activity, by alteration of their antithrombotic and fibrinolytic potential, by their secretion of inflammatory mediators and by an increased expression of receptors of adhesivity for the activated phagocytes or platelets, what leads to endothelium injury with membrane permeability alterations. These cascades of activation, these extensions of the inflammatory reaction by the mediators and by the phagocytes and platelets can explain the frequency of multiple organ failure during sepsis as well as the difficulty of an adequate pharmacological therapy. [less ▲]

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