References of "Damas, Pierre"
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See detailMolecular epidemiology of extended-spectrum beta-lactamase-producing Enterobacteriaceae colonizing the digestive tract of patients admitted to intensive care units in a Belgian university hospital
CHRISTIAENS, Geneviève ULg; Damas, Pierre ULg; Docquier, J. D. et al

in American Society of Microbiology (Ed.) Program and Abstracts of the 46th Intersciences Conference on Antimicrobial Agents and Chemotherapy (2006, September)

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See detailFasciites nécrosantes: stratégie diagnostique et thérapeutique
Smeets, Laurent ULg; Bous, Aurélie ULg; Lecoq, Jean-Pierre ULg et al

in Revue Médicale de Liège (2006), 61(4), 240-244

The necrotizing fasciitis is a medico-surgical emergency, characterized by the rapid speard of the infection in the subcutaneous tissue, involving fascia superficialis. Peaucity of cutaneous findings ... [more ▼]

The necrotizing fasciitis is a medico-surgical emergency, characterized by the rapid speard of the infection in the subcutaneous tissue, involving fascia superficialis. Peaucity of cutaneous findings early in the course of the disease makes diagnosis a challenge for physician. Pain out of proportion to clinical findings, fever and signs of systemic toxicity are the keys in identification of necrotizing fasciitis. Delayed diagnosis lead to sepsis syndrom and/or multiple organ failure and correlate with poor oucome. Radiolographs, CT-scan or MRI are main radiologic studies, but such procedures should never delay surgical intervention. Intravenous antibiotics, fluid and electrolyte management and analgesia are needed in addition to radical debridment. Clindamycin, hyperbaric oxygen therapy and intravenous immunoglobulins are discussed treatments. Only prompt recognition and immediat care warrant a lower mortality and morbidity for this life-threatening infection. [less ▲]

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See detailSelection of resistance during sequential use of preferential antibiotic classes
Damas, Pierre ULg; Canivet, Jean-Luc ULg; Ledoux, Didier ULg et al

in Intensive Care Medicine (2006), 32

OBJECTIVE: To determine the effect of antibiotic class pressure on the susceptibility of bacteria during sequential periods of antibiotic homogeneity. DESIGN AND SETTING: Prospective study in a mixed ICU ... [more ▼]

OBJECTIVE: To determine the effect of antibiotic class pressure on the susceptibility of bacteria during sequential periods of antibiotic homogeneity. DESIGN AND SETTING: Prospective study in a mixed ICU with three separated subunits of eight, eight, and ten beds. PATIENTS AND PARTICIPANTS: The study examined the 1,721 patients with a length of stay longer than 2 days. INTERVENTIONS: Three different antibiotic regimens were used sequentially over 2 years as first-choice empirical treatment: cephalosporins, fluoroquinolone, or a penicillin-beta-lactamase inhibitor combination. Each regimen was applied for 8 months in each subunits of the ICU, using "latin square" design. RESULTS: We treated 731 infections in 546 patients (32% of patients staying more than 48 h). There were 25.5 ICU-acquired infections per 1,000 patient-days. Infecting pathogens and colonizing bacteria were found in 2,739 samples from 1,666 patients (96.8%). No significant change in global antibiotic susceptibility was observed over time. However, a decrease in the susceptibility of several species was observed for antibiotics used as the first-line therapy in the unit. Selection pressure of antibiotics and occurrence of resistance during treatment was documented within an 8-month rotation period. CONCLUSIONS: Antibiotic use for periods of several months induces bacterial resistance in common pathogens [less ▲]

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See detailCombination therapy versus monotherapy: a randomised pilot study on the evolution of inflammatory parameters after ventilator associated pneumonia
Damas, Pierre ULg; Garweg, Christophe ULg; Monchi, Mehran et al

in Critical Care (2006), 10(2), 52

Introduction Combination antibiotic therapy for ventilator associated pneumonia (VAP) is often used to broaden the spectrum of activity of empirical treatment. The relevance of such synergy is commonly ... [more ▼]

Introduction Combination antibiotic therapy for ventilator associated pneumonia (VAP) is often used to broaden the spectrum of activity of empirical treatment. The relevance of such synergy is commonly supposed but poorly supported. The aim of the present study was to compare the clinical outcome and the course of biological variables in patients treated for a VAP, using a monotherapy with a beta-lactam versus a combination therapy. Methods Patients with VAP were prospectively randomised to receive either cefepime alone or cefepime in association with amikacin or levofloxacin. Clinical and inflammatory parameters were measured on the day of inclusion and thereafter. Results Seventy-four mechanically ventilated patients meeting clinical criteria for VAP were enrolled in the study. VAP was microbiologically confirmed in 59 patients (84%). Patients were randomised to receive cefepime (C group, 20 patients), cefepime with amikacin (C-A group, 19 patients) or cefepime with levofloxacin (C-L group, 20 patients). No significant difference was observed regarding the time course of temperature, leukocytosis or C-reactive protein level. There were no differences between length of stay in the intensive care unit after infection, nor in ventilator free days within 28 days after infection. No difference in mortality was observed. Conclusion Antibiotic combination using a fourth generation cephalosporin with either an aminoside or a fluoroquinolone is not associated with a clinical or biological benefit when compared to cephalosporin monotherapy against common susceptible pathogens causing VAP. [less ▲]

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See detailProspective survey of digestive tract colonization with enterobacteriaceae that produce ESBLs in intensive care units
Christiaens, Geneviève ULg; Ciccarella, Y.; Damas, Pierre ULg et al

in Journal of Hospital Infection (2006), 62(3), 386-388

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See detailLiver transplantation in Jehovah's witnesses
Detry, Olivier ULg; De Roover, Arnaud ULg; Delwaide, Jean ULg et al

in Transplant International (2005), 18(8), 929-936

For religious reasons, Jehovah's witnesses refuse transfusion of blood products (red cells, platelets, plasma), but may accept organ transplantation. The authors developed a multidisciplinary protocol for ... [more ▼]

For religious reasons, Jehovah's witnesses refuse transfusion of blood products (red cells, platelets, plasma), but may accept organ transplantation. The authors developed a multidisciplinary protocol for liver transplantation in Jehovah's witnesses. In a 6-year period, nine Jehovah's witness patients were listed for liver transplantation. They received preoperative erythropoietin therapy, with iron and folic acid that allowed significant haematocrit increase. Two patients underwent partial spleen embolization to increase platelet count. Seven patients underwent cadaveric whole liver transplantation, and two right lobe living-related liver transplantation, using continuous circuit cell saving system and high dose aprotinin. No patient received any blood product during the surgical procedure. One patient suffering from deep anaemia after living-related liver transplantation was transfused as required by his family, but died from aspergillus infection. One 6-year-old child was transfused against her parent's will. The authors demonstrated that it is possible to increase haematocrit and platelet levels in cirrhotic patients awaiting liver transplantation. They were able to reduce intraoperative need for blood products, allowing liver transplantation in prepared Jehovah's witness patients. This experience may be beneficial for non-Jehovah's witness liver transplant recipients. [less ▲]

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See detailEffect of hydroxyethylstarch on renal function in cardiac surgery: A large scale retrospective study
Wiesen, Patricia ULg; Canivet, Jean-Luc ULg; Ledoux, Didier ULg et al

in Acta Anaesthesiologica Belgica (2005), 56(3), 257-263

BACKGROUND: Recent reports indicated negative effects of hydroxyethylstarch (HES) on renal function. The goal of this large scale retrospective study was to detect whether there was an association between ... [more ▼]

BACKGROUND: Recent reports indicated negative effects of hydroxyethylstarch (HES) on renal function. The goal of this large scale retrospective study was to detect whether there was an association between postoperative deterioration of renal function and the use of HES 200 kD, 0.5 DS in the cardiac surgery setting. METHODS: Retrospective analysis of daily collected data in 3124 patients who underwent coronary artery bypass and/or valvular surgery. Three groups were compared according to differences in fluid therapy: --GEL: gelatin was used as priming fluid of extracorporeal circulation (ECC) and for postoperative filling (n = 1276). --MIX: HES was used as priming fluid of ECC an gelatin was used for postoperative filling (n = 1008). --HES: HES was used as priming fluid of ECC and for postoperative filling (n = 840). MAIN RESULTS: There were no significant differences in postoperative serum creatinine concentrations between the 3 groups: GEL: 12,2 +/- 0,5 mg/l; MIX: 12,3 +/- 0.5 mg/l; HES: 12,3 +/- 0.6 mg/l. The need for postoperative extrarenal epuration was not significantly different between the 3 periods: GEL: 2,9%; MIX: 3,1%; HES: 3,8%. CONCLUSION: The use of HES 200 kD, 0.5 DS in cardiac surgery does not seem to be associated with a clinically significant deterioration of postoperative renal function. [less ▲]

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See detailThe European Union Directive on Clinical Research: present status of implementation in EU member states’ legislations with regard to the incompetent patient
Lemaire, Florence ULg; Bion, J.; Blanco, J. et al

in Intensive Care Medicine (2005), 31

A European-wide response is slowly emerging to the European Union Directive on Clinical Research (2001/20/CE) establishing good practice in the conduct of clinical trials on medicinal products [1]. The ... [more ▼]

A European-wide response is slowly emerging to the European Union Directive on Clinical Research (2001/20/CE) establishing good practice in the conduct of clinical trials on medicinal products [1]. The Directive was to have been incorporated and made effective in member states’ national laws by 1 May 2004. Among many other aspects of this wide-ranging Directive passed by the European Parliament on 4 April 2001 is the requirement for prior informed consent by a legal representative for research involving incompetent patients. A preliminary survey conducted by this group in 2002 demonstrated that many states did not possess clear definitions for a legal representative in matters of health, and in the absence of a waiver of informed consent none could validly recruit patients to clinical trials in emergency situations. The Directive therefore had the potential to make clinical research very difficult in intensive care, and impossible in emergency situations such as cardiopulmonary resuscitation. We now report current progress among member states in implementing the Directive. [less ▲]

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See detailAnalytical quantification of the inflammatory cell infiltrate and CD95R expression during treatment of drug-induced toxic epidermal necrolysis.
Paquet, Philippe ULg; Jacob, Eric; Damas, Pierre ULg et al

in Archives of Dermatological Research (2005), 297(6), 266-73

The treatment of drug-induced toxic epidermal necrolysis (TEN) remains unsatisfactory. Intravenous immunoglobulins (IVIg) and intravenous cyclosporin A (CsA) have shown some efficacy in short series of ... [more ▼]

The treatment of drug-induced toxic epidermal necrolysis (TEN) remains unsatisfactory. Intravenous immunoglobulins (IVIg) and intravenous cyclosporin A (CsA) have shown some efficacy in short series of patients. We assessed the effects of IVIg and CsA on TEN lesional and apparently uninvolved skin using standard histology and immunohistochemistry. Cutaneous biopsies were taken from necrotic and clinically uninvolved TEN skin at admission (D1) before any treatment, and after a 5-day treatment (D5). Two IVIg-treated patients (0.75 g/kg/day), two CsA-treated patients (5 mg/kg/day) and two control patients only receiving supportive care were compared. Biopsies were examined by standard histology and immunohistochemistry using antibodies directed to CD68 antigen (macrophages), CD45R0 antigen (activated T lymphocytes), Factor XIIIa (dermal dendrocytes) and the CD95 receptor (apoptosis marker). The different cell densities were evaluated by computerized image analysis. The clinical outcomes with the different treatments were also recorded. There was no obvious difference in the duration of hospitalization in intensive care unit between the three groups but one patient passed away in each of the IVIg- and CsA-groups. At D5, no differences were found between the three groups in the histological and clinical rate of re-epithelialization, and in the evolution of T lymphocyte, macrophage and dendrocyte densities in the epidermis and dermis. However, the expression of the CD95 receptor was similarly and strongly abated at D5 in the epidermis of IVIg- and CsA-treated patients, while it was conversely increased in the two patients under supportive care only. Such a difference was found both in necrotic and uninvolved sites. IVIg and CsA treatments thus appeared to exert no obvious effect on the inflammatory infiltrate, but both abated the expression of the CD95 receptor in the skin of TEN patients. This effect did not seem sufficient to fully reverse the clinical evolution of the disease. It is inferred that IVIg and CsA do not completely abate the TEN process. [less ▲]

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See detailNitric oxide-related products and myeloperoxidase in bronchoalveolar lavage fluids from patients with ALI activate NF-kappa B in alveolar cells and monocytes.
Nys, Monique ULg; Preiser, Jean-Charles ULg; Deby, Ginette ULg et al

in Vascular Pharmacology (2005), 43(6), 425-33

An increased production of NO* and peroxynitrite in lungs has been suspected during acute lung injury (ALI) in humans, and recent studies provided evidence for an alveolar production of nitrated compounds ... [more ▼]

An increased production of NO* and peroxynitrite in lungs has been suspected during acute lung injury (ALI) in humans, and recent studies provided evidence for an alveolar production of nitrated compounds. We observed increased concentrations of nitrites/nitrates, nitrated proteins and markers of neutrophil degranulation (myeloperoxidase, elastase and lactoferrine) in the fluids recovered from bronchoalveolar lavage fluids (BALF) of patients with ALI and correlated these changes to the number of neutrophils and the severity of the ALI. We also observed that BALFs stimulated the DNA-binding activity of the nuclear transcription factor kappa B (NF-kappaB) as detected by electrophoretic mobility shift assay in human alveolar cells (A549) and monocytes (THP1). The level of activation of the NF-kappaB-binding activity was correlated to the concentration of nitrated proteins and myeloperoxidase. Furthermore, in vitro studies confirmed that NO*-derived species (peroxynitrite and nitrites) and the neutrophil enzyme myeloperoxidase by themselves increased the activation of NF-kappaB, thereby arguing for an in vivo pathogenetic role of NO*-related products and neutrophil enzymes to human ALI. [less ▲]

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See detailAvoiding blood products during liver transplantation
Detry, Olivier ULg; De Roover, Arnaud ULg; Delwaide, Jean ULg et al

in Transplantation Proceedings (2005), 37(6, Jul-Aug), 2869-2870

Liver transplantation is a major surgical procedure usually requiring large amount of blood products (red cells, platelets, fresh-frozen plasma). We developed a multidisciplinary transfusion-free protocol ... [more ▼]

Liver transplantation is a major surgical procedure usually requiring large amount of blood products (red cells, platelets, fresh-frozen plasma). We developed a multidisciplinary transfusion-free protocol for liver transplantation in Jehovah's witnesses who refuse the use of blood products but accept organ transplantation. Between September 1998 and November 2004, 9 of 29 Jehovah's witnesses evaluated for liver transplantation were transplanted after medical preparation. None of these patients received any blood product during the surgical procedure. This experience may be beneficial for the entire liver transplantation population, as excessive transfusion has been linked to increased morbidity and mortality in liver transplantation. [less ▲]

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See detailZerebrale Funktionen bei hirngeschädigten Patienten. Was bedeuten Koma, "vegetative state“, "minimally conscious state“, "Locked-in-Syndrom“ und Hirntod?
Faymonville, Marie-Elisabeth ULg; Pantke, Karl-Heinz; Berré, Jacques et al

in Anaesthesist (2004), 53(12), 1195-1202

Comatose, vegetative, minimally conscious or locked-in patients represent a problem in terms of diagnosis, prognosis, treatment and everyday management at the intensive care unit. The evaluation of ... [more ▼]

Comatose, vegetative, minimally conscious or locked-in patients represent a problem in terms of diagnosis, prognosis, treatment and everyday management at the intensive care unit. The evaluation of possible cognitive functions in these patients is difficult because voluntary movements may be very small, inconsistent and easily exhausted. Functional neuroimaging cannot replace the clinical assessment of patients with altered states of consciousness. Nevertheless, it can describe objectively how deviant from normal the cerebral activity is and its regional distribution at rest and under various conditions of stimulation. The quantification of brain activity differentiates patients who sometimes only differ by a brief and incomplete blink of an eye. In the present paper, we will first try to define consciousness as it can be assessed at the patient's bedside. We then review the major clinical entities of altered states of consciousness encountered in the intensive care unit. Finally, we discuss the functional neuroanatomy of these conditions as assessed by positron emission tomography (PET) scanning. [less ▲]

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See detailLiving related liver transplantation in adults: First year experience at the University of Liege
Detry, Olivier ULg; De Roover, Arnaud ULg; Delwaide, Jean ULg et al

in Acta Chirurgica Belgica (2004), 104(2, MAR-APR), 166-171

Living related liver transplantation (LRLT) in adult recipients has been recently developed to overcome the organ donor shortage, but LRLT leaves the healthy donors at risk of serious post-operative ... [more ▼]

Living related liver transplantation (LRLT) in adult recipients has been recently developed to overcome the organ donor shortage, but LRLT leaves the healthy donors at risk of serious post-operative complications, or even death. The aim of this paper is to report the prospective evaluation of the initial experience of adult LRLT at the University of Liege. From March 2002 till March 2003, in a consecutive series of 35 adult liver transplantations, five recipients (mean age : 51 years) underwent LRLT, including one retransplantation. Indications for transplantation were autoimmune hepatitis, hepatitis B virus related cirrhosis with hepatocarcinoma (two cases), hepatitis C virus related cirrhosis with hepatocarcinoma, and ischemic intrahepatic bile duct necrosis 10 years after primary liver transplantation. Mean age of the donors was 34 years (range : 21-53 years). All donation cases were intra familial at first degree. The right lobe was used as a graft in four cases and the left lobe in one case. All right lobe donors developed transient hyperbilirubinemia and hypocoagulation for 4 to 6 days. No severe complication (transfusion, bile duct fistula, reintervention, rehospitalization) nor significant long-term sequelae were observed in the donors. In the recipients, graft function was immediate, and there was no small-for-size syndrome. One recipient developed biliary fistula treated by reoperation. One recipient died from invasive aspergillosis 11 days after the procedure. The four other recipients were alive without recurrence of the disease at follow-up. This report confirmed that LRLT may be a valuable alternative to cadaveric liver transplantation in the era of organ donor shortage. However, even if there was no severe complication for the donors in our preliminary experience, LRLT puts healthy living donors at risk of significant morbidity and even death. [less ▲]

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See detailLe cas clinique du mois. Syndrome de Down et myxoedeme: description d'un cas et revue de la litterature
Serpe, Philippe ULg; Gaillard, J. F.; Serpe, J. N. et al

in Revue Médicale de Liège (2004), 59(3), 131-135

A case of myxedema secondary to undetected hypothyroidism developed in a 48 year old 21-trisomic male. This paper presents a short discussion about different possible diagnoses and a review of the ... [more ▼]

A case of myxedema secondary to undetected hypothyroidism developed in a 48 year old 21-trisomic male. This paper presents a short discussion about different possible diagnoses and a review of the literature concerning the relationship between Down Syndrome and hypothyroidism or other diseases. [less ▲]

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See detailLe cas clinique du mois. Cirrhose autoimmune traitee par transplantation hepatique 'a partir d'un lobe hepatique droit preleve chez un donneur vivant
Detry, Olivier ULg; De Roover, Arnaud ULg; Coimbra Marques, Carla ULg et al

in Revue Médicale de Liège (2004), 59(2), 69-74

The authors describe the case of a 17-year-old girl who suffered from end-stage liver failure due to chronic autoimmune hepatitis. Liver failure was complicated by severe portal hypertension ... [more ▼]

The authors describe the case of a 17-year-old girl who suffered from end-stage liver failure due to chronic autoimmune hepatitis. Liver failure was complicated by severe portal hypertension, hypersplenism and refractory ascites. Liver transplantation was indicated. She was listed for cadaveric whole liver transplantation, but her infrequent blood group (B) increased waiting time. Her condition deteriorated to Child C liver failure and living related liver transplant was considered. Her father was compatible and proposed himself for donation. Right lobe procurement was decided in order to provide sufficient liver mass. No transfusion of red cells, platelets, or fresh frozen plasma was used either in the donor or the recipient. Both recipient and donor left the ward at postoperative day 14, without complication. They were both asymptomatic and with normal liver tests at one year follow-up. Living related liver transplantation using the right lobe may offer an alternative to liver transplant candidates in this period of organ donor shortage. [less ▲]

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See detailActualites en anesthésie-réanimation en chirurgie cardiaque adulte
Roediger, Laurence ULg; Larbuisson, Robert ULg; Senard, Marc ULg et al

in Revue Médicale de Liège (2004), 59(1), 35-45

Anesthetic techniques and treatment of cardiac surgery patients have considerably evolved over the past twenty years. The demand for cardiac surgical procedures is increasing. This demand coincides with a ... [more ▼]

Anesthetic techniques and treatment of cardiac surgery patients have considerably evolved over the past twenty years. The demand for cardiac surgical procedures is increasing. This demand coincides with a change in the profile of patients presenting for surgery, requiring modification in perioperative management strategies. Several new anesthetics, related drugs, and technologies have become available in recent years that inevitably have made new approaches with patient management possible. In parallel to these new developments, there have appeared real opportunities to apply novel physiologic and pharmacologic concepts that may redefine our clinical practice. Fast-tracking, which emphasizes the major role of anesthetic management in postoperative outcome, is one such line of investigation. Fast-tracking was first introduced in an attempt to decrease the time to tracheal extubation and reduce expensive time in intensive care unit areas. Large doses of opioids have been clearly identified as a factor in delaying weaning from mechanical ventilatory support after cardiac surgery. Thus, early investigations emphasized the importance of limiting the dose of potent opioid analgesics during the intraoperative period to achieve early recovery. Supplementation with hypnotic drugs allows reduction of the opioid dose, enabling earlier extubation without compromising hemodynamic stability. Fast track cardiac anesthesia (FTCA) is becoming an accepted practice for perioperative management of cardiac surgical patients. FTCA is a key component to successful conduction of fast-track cardiac surgery. Also, analgesia management in cardiac surgery is becoming more important with the establishment of minimally invasive direct coronary artery bypass surgery and fast track management of conventional cardiac surgery patients. [less ▲]

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See detailLiver transplantation in Jehovah's witnesses
DETRY, Olivier ULg; DE ROOVER, Arnaud ULg; DELWAIDE, Jean ULg et al

in Acta Gastro-Enterologica Belgica (2004), 67

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See detailAuditory processing in severely brain injured patients: differences between the minimally conscious state and the persistent vegetative state.
Boly, Mélanie ULg; FAYMONVILLE, Marie-Elisabeth ULg; Peigneux, Philippe ULg et al

in Archives of Neurology (2004), 61(2), 233-8

BACKGROUND: The minimally conscious state (MCS) is a recently defined clinical condition; it differs from the persistent vegetative state (PVS) by the presence of inconsistent, but clearly discernible ... [more ▼]

BACKGROUND: The minimally conscious state (MCS) is a recently defined clinical condition; it differs from the persistent vegetative state (PVS) by the presence of inconsistent, but clearly discernible, behavioral evidence of consciousness. OBJECTIVE: To study auditory processing among patients who are in an MCS, patients who are in a PVS, and healthy control subjects. METHODS: By means of (15)O-radiolabeled water-positron emission tomography, we measured changes in regional cerebral blood flow induced by auditory click stimuli in 5 patients in an MCS, 15 patients in a PVS, and 18 healthy controls. RESULTS: In both patients in an MCS and the healthy controls, auditory stimulation activated bilateral superior temporal gyri (Brodmann areas 41, 42, and 22). In patients in a PVS, the activation was restricted to Brodmann areas 41 and 42 bilaterally. We also showed that, compared with patients in a PVS, patients in an MCS demonstrated a stronger functional connectivity between the secondary auditory cortex and temporal and prefrontal association cortices. CONCLUSIONS: Although assumptions about the level of consciousness in severely brain injured patients are difficult to make, our findings suggest that the cerebral activity observed in patients in an MCS is more likely to lead to higher-order integrative processes, thought to be necessary for the gain of conscious auditory perception. [less ▲]

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See detailCardiac tamponade and pulmonary compression due to volvulus of oesophageal coloplasty
Canivet, Jean-Luc ULg; Piret, Sonia ULg; Hick, Gaëtane ULg et al

in Acta Anaesthesiologica Belgica (2004), 55(2), 125-127

We describe an unusual case of cardiac tamponade and pulmonary compression due to acute volvulus of colon interposition occuring late after oesophagectomy. Clinical signs were suggestive of cardiac ... [more ▼]

We describe an unusual case of cardiac tamponade and pulmonary compression due to acute volvulus of colon interposition occuring late after oesophagectomy. Clinical signs were suggestive of cardiac tamponade but there was no evidence of pericardial effusion by transthoracic echocardiography. Thoracic-CT provided the diagnostic clue in revealing the extrapericardial nature (a major dilatation of the colonic transplant) of the tamponade. This diagnosis should be considered in case of acute cardiopulmonary distress occuring early or late after oesophagectomy. [less ▲]

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