Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Cogn Emot ; : 1-19, 2023 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-37715522

RESUMEN

Emotional attenuation in a second language is believed to be one of the main causes of the Moral Foreign Language effect (MFLe). However, evidence on the mediating role of emotion in the relationship between language and moral judgements is limited and mainly derives from unrealistic moral dilemmas. We conducted two studies to investigate (1) whether the MFLe is present in both unrealistic (Study 1) and realistic (Study 2) moral dilemmas, and (2) whether this effect can be attributed to reduced emotionality. In Study 1, the MFLe was found in the moral judgements made by Spanish-English bilinguals. However, the same pattern was not observed in Greek Cypriot-English bilinguals' moral judgements, and this result was attributed to the prominent role of English in Cyprus. In Study 2, the MFLe extended to realistic moral dilemmas when the outcome of the action entailed the violation of a social norm. Study 1 and Study 2 also revealed that these bilinguals experienced a wide range of emotions in their L1 and L2, which did not differ significantly across languages. Mediation analyses further indicated that the MFLe was not mediated by emotional blunting, which made us consider alternative explanations for the MFLe.

2.
Trends Neurosci Educ ; 27: 100175, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35501027

RESUMEN

This study assessed the effectiveness of an executive function training programme aiming at reducing the behavioural and emotional problems of 87 minors, aged between 8 and 17, in residential care within the Spanish foster care system. Participants' executive functions were assessed with the Spanish adaptation of the Behaviour Rating Inventory of Executive Function (BRIEF®2). For the assessment of their emotional and behavioural problems, the Spanish adaptation of the Assessment System for Children and Adolescents (SENA) was used. The results revealed an improvement in initiative and task supervision. After the intervention, the minors reported having fewer problems with their classmates and fewer symptoms related to traumatic events. According to the educators, those minors also presented better integration and social skills, a greater willingness to study, less isolation, less symptoms of depression, fewer emotional problems and a higher level and variety of personal resources.


Asunto(s)
Emociones , Función Ejecutiva , Adolescente , Niño , Cuidados en el Hogar de Adopción , Humanos , Habilidades Sociales , España
3.
Crit Care ; 14(3): R96, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20504311

RESUMEN

INTRODUCTION: Although major changes of the immune system have been described in sepsis, it has never been studied whether these may differ in relation to the type of underlying infection or not. This was studied for the first time. METHODS: The statuses of the innate and adaptive immune systems were prospectively compared in 505 patients. Whole blood was sampled within less than 24 hours of advent of sepsis; white blood cells were stained with monoclonal antibodies and analyzed though a flow cytometer. RESULTS: Expression of HLA-DR was significantly decreased among patients with severe sepsis/shock due to acute pyelonephritis and intraabdominal infections compared with sepsis. The rate of apoptosis of natural killer (NK) cells differed significantly among patients with severe sepsis/shock due to ventilator-associated pneumonia (VAP) and hospital-acquired pneumonia (HAP) compared with sepsis. The rate of apoptosis of NKT cells differed significantly among patients with severe sepsis/shock due to acute pyelonephritis, primary bacteremia and VAP/HAP compared with sepsis. Regarding adaptive immunity, absolute counts of CD4-lymphocytes were significantly decreased among patients with severe sepsis/shock due to community-acquired pneumonia (CAP) and intraabdominal infections compared with sepsis. Absolute counts of B-lymphocytes were significantly decreased among patients with severe sepsis/shock due to CAP compared with sepsis. CONCLUSIONS: Major differences of the early statuses of the innate and adaptive immune systems exist between sepsis and severe sepsis/shock in relation to the underlying type of infection. These results may have a major impact on therapeutics.


Asunto(s)
Inmunidad Adaptativa/inmunología , Inmunidad Innata/inmunología , Sepsis/clasificación , Anciano , Anciano de 80 o más Años , Apoptosis/inmunología , Linfocitos B/inmunología , Recuento de Linfocito CD4 , Femenino , Grecia , Antígenos HLA-DR/sangre , Humanos , Células Asesinas Naturales/inmunología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sepsis/sangre , Sepsis/inmunología
4.
Intensive Care Med ; 34(12): 2169-75, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18712349

RESUMEN

OBJECTIVE: To define the potential of resistant gram-negative colonization surveillance to predict etiology of subsequent infection and improve adequacy of empiric antimicrobial treatment. DESIGN: Retrospective cohort study. SETTING: A mixed medical-surgical six-bed intensive care unit (ICU), from November 2003 to December 2006. PATIENTS: All patients having at least one episode of ventilator-associated pneumonia (VAP) or bloodstream infection (BSI) caused by a resistant gram-negative pathogen during the study period. INTERVENTIONS: Colonization surveillance of the respiratory tract and gastrointestinal tract was systematically performed in all ICU patients. Tracheal aspirates were obtained twice weekly and rectal swabs once weekly. Both tracheal and rectal samples were cultured in antibiotic-enriched media (containing ceftazidime, ciprofloxacin, imipenem or piperacillin/tazobactam), to focus on resistant gram-negative pathogen isolation. MEASUREMENTS AND RESULTS: Colonization concordance between resistant, gram-negative pathogens of infectious episodes and previous, recent (

Asunto(s)
Antibacterianos/uso terapéutico , Bacteriemia/prevención & control , Infección Hospitalaria/prevención & control , Farmacorresistencia Bacteriana Múltiple , Bacterias Gramnegativas/efectos de los fármacos , Infecciones por Bacterias Gramnegativas/prevención & control , Neumonía Asociada al Ventilador/prevención & control , Bacteriemia/tratamiento farmacológico , Bacteriemia/microbiología , Portador Sano , Estudios de Cohortes , Infección Hospitalaria/tratamiento farmacológico , Infección Hospitalaria/microbiología , Infecciones por Bacterias Gramnegativas/tratamiento farmacológico , Humanos , Control de Infecciones/métodos , Unidades de Cuidados Intensivos , Pruebas de Sensibilidad Microbiana , Neumonía Asociada al Ventilador/tratamiento farmacológico , Neumonía Asociada al Ventilador/microbiología , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Vigilancia de Guardia
5.
Hormones (Athens) ; 7(3): 237-42, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18694862

RESUMEN

OBJECTIVE: Perioperative pituitary-adrenal responses after major abdominal surgery have not been well characterized. The aim of the present study was to further clarify perioperative pituitary-adrenal responses. DESIGN: Thirty-six patients (20 men), aged 68+/-10 years (mean+/-SD), undergoing major abdominal operations were studied. Total cortisol (TC), adrenocorticotropic hormone (ACTH), corticosteroid-binding globulin (CBG), dehydroepiandrosterone (DHEA) and its sulphate (DHEAS) were measured preoperatively (PreOp), on the day of surgery (DoS) and on the first and second postoperative days (PoD1 and PoD2). The free cortisol index (FCI) was also calculated. In addition, patients underwent a low-dose (1 mug) ACTH stimulation test, preoperatively and on PoD1, to assess adrenal responsiveness to ACTH. RESULTS: TC, FCI, ACTH and DHEA were increased, while DHEAS and CBG declined on DoS compared to PreOp levels. On PoD1, plasma ACTH was lower compared to the preoperative levels, FCI remained elevated, DHEA, DHEAS and TC returned to their baseline values, while CBG was still low. On PoD2, ACTH and CBG were low and FCI returned to its PreOp levels. Postoperatively, stimulated FCI was higher compared to the PreOp value. CONCLUSION: At an early phase following major surgery, elevated cortisol is associated with high ACTH. Despite HPA activation and a concomitant rise in DHEA levels, DHEAS declines. Later on, a remarkable dissociation between ACTH (low) and cortisol (high) is observed, which is attributed, at least in part, to increased adrenal responsiveness to ACTH.


Asunto(s)
Abdomen/cirugía , Hormonas/sangre , Sistema Hipófiso-Suprarrenal/metabolismo , Pruebas de Función de la Corteza Suprarrenal , Hormona Adrenocorticotrópica/sangre , Anciano , Proteínas Portadoras/sangre , Colectomía/efectos adversos , Deshidroepiandrosterona/sangre , Sulfato de Deshidroepiandrosterona/sangre , Femenino , Humanos , Hidrocortisona/sangre , Masculino , Persona de Mediana Edad , Pancreatectomía/efectos adversos , Pruebas de Función Adreno-Hipofisaria , Periodo Posoperatorio , Estudios Prospectivos , Factores de Tiempo , Procedimientos Quirúrgicos Vasculares/efectos adversos
6.
Intensive Care Med ; 33(3): 454-9, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17186287

RESUMEN

OBJECTIVE: To investigate the pattern of pituitary-adrenal responses to human corticotropin-releasing hormone (hCRH) in critically ill patients and to examine the relation between responses and clinical outcome. DESIGN AND SETTING: Prospective study in consecutive critically ill patients in a general intensive care unit in a teaching hospital. PATIENTS: The study included 37 critically ill, mechanically ventilated patients with diverse underlying diagnoses (28 men, 9 women; median age 56 years). INTERVENTIONS: A morning blood sample was obtained to measure baseline cortisol, corticotropin (ACTH), and cytokines. Patients were then injected with 100 microg hCRH, and plasma cortisol and ACTH were measured over a period of 2 h. MEASUREMENTS AND RESULTS: In the overall patient population baseline and peak cortisol concentrations following hCRH were 16+/-5 and 21+/-5 microg/dl, respectively, and median baseline and peak ACTH levels 23 and 65 pg/ml, respectively. Higher ACTH levels and longer release of cortisol were noted in nonsurvivors (n=18) than in survivors (n=19). Furthermore, nonsurvivors had higher concentrations of interleukin 8 (115 vs. 38 pg/ml) and interleukin 6 (200 vs. 128 pg/ml) than survivors. CONCLUSIONS: Critically ill patients demonstrate altered pituitary-adrenal axis responses to hCRH. This is particularly evident in the sickest patients with the highest degree of inflammatory profile who ultimately do not survive.


Asunto(s)
Hormona Adrenocorticotrópica/sangre , Hormona Liberadora de Corticotropina , Hormonas , Hidrocortisona/sangre , Pruebas de Función Adreno-Hipofisaria , Adolescente , Hormona Adrenocorticotrópica/efectos de los fármacos , Adulto , Anciano , Anciano de 80 o más Años , Enfermedad Crítica , Citocinas/sangre , Citocinas/efectos de los fármacos , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Análisis de Supervivencia
7.
Neuroimmunomodulation ; 14(5): 243-7, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18073499

RESUMEN

To establish whether cytokine release is implicated in thyroid hormone changes during surgical stress we studied 36 adult patients (20 men; mean age +/- SD: 68.5 +/- 10.5 years) undergoing elective major abdominal operations. We measured tumor necrosis factor (TNF)-alpha, interleukin (IL)-6, IL-8 and IL-10 and thyrotropin (TSH), free thyroxine (FT(4)) and triiodothyronine (T(3)) before scheduled non-emergency surgery, immediately postoperatively, on the 1st postoperative day (post-1) and on the 2nd postoperative day (post-2). TNF-alpha, IL-6 and IL-8 peaked on day post-1 whereas IL-10 peaked immediately postoperatively. Fourteen of 36 patients had low T(3) levels after surgery, indicating non-thyroidal illness (NTI). Significant negative correlations were noted among TNF-alpha, IL-6 and IL-8 against T(3) and FT(4). Cytokines are responsible, at least in part, for NTI following major operations.


Asunto(s)
Citocinas/sangre , Complicaciones Posoperatorias/sangre , Complicaciones Posoperatorias/inmunología , Estrés Fisiológico/sangre , Estrés Fisiológico/inmunología , Hormonas Tiroideas/sangre , Abdomen/cirugía , Factores de Edad , Anciano , Citocinas/metabolismo , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Femenino , Humanos , Hipotiroidismo/sangre , Hipotiroidismo/inmunología , Sistema Inmunológico/inmunología , Inflamación/sangre , Inflamación/inmunología , Inflamación/fisiopatología , Interleucinas/sangre , Interleucinas/metabolismo , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/fisiopatología , Estrés Fisiológico/fisiopatología , Glándula Tiroides/inmunología , Glándula Tiroides/metabolismo , Glándula Tiroides/fisiopatología , Hormonas Tiroideas/metabolismo , Tirotropina/sangre , Tirotropina/metabolismo , Factores de Tiempo , Factor de Necrosis Tumoral alfa/sangre , Factor de Necrosis Tumoral alfa/metabolismo , Regulación hacia Arriba/inmunología
9.
Infect Control Hosp Epidemiol ; 38(7): 765-771, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28473010

RESUMEN

OBJECTIVE To evaluate the efficacy of copper-coating in reducing environmental colonization in an intensive-care unit (ICU) with multidrug-resistant-organism (MDRO) endemicity DESIGN Interventional, comparative crossover trial SETTING The general ICU of Attikon University hospital in Athens, Greece PATIENTS Those admitted to ICU compartments A and B during the study period METHODS Before any intervention (phase 1), the optimum sampling method using 2 nylon swabs was validated. In phase 2, 6 copper-coated beds (ie, with coated upper, lower, and side rails) and accessories (ie, coated side table, intravenous [i.v.] pole stands, side-cart handles, and manual antiseptic dispenser cover) were introduced as follows: During phase 2a (September 2011 to February 2012), coated items were placed next to noncoated ones (controls) in both compartments A and B; during phase 2b (May 2012 to January 2013), all copper-coated items were placed in compartment A, and all noncoated ones (controls) in compartment B. Patients were randomly assigned to available beds. Environmental samples were cultured quantitatively for clinically important bacteria. Clinical and demographic data were collected from medical records. RESULTS Copper coating significantly reduced the percentage of colonized surfaces (55.6% vs 72.5%; P<.0001), the percentage of surfaces colonized by MDR gram-negative bacteria (13.8% vs 22.7%; P=.003) or by enterococci (4% vs 17%; P=.014), the total bioburden (2,858 vs 7,631 cfu/100 cm2; P=.008), and the bioburden of gram-negative isolates, specifically (261 vs 1,266 cfu/100 cm2; P=.049). This effect was more pronounced when the ratio of coated surfaces around the patient was increased (phase 2b). CONCLUSIONS Copper-coated items in an ICU setting with endemic high antimicrobial resistance reduced environmental colonization by MDROs. Infect Control Hosp Epidemiol 2017;38:765-771.


Asunto(s)
Cobre , Contaminación de Equipos/prevención & control , Equipos y Suministros de Hospitales/microbiología , Fómites/microbiología , Unidades de Cuidados Intensivos , Adulto , Anciano , Aleaciones , Carga Bacteriana , Lechos/microbiología , Estudios Cruzados , Farmacorresistencia Bacteriana Múltiple , Enterococcus/aislamiento & purificación , Femenino , Bacterias Gramnegativas/aislamiento & purificación , Humanos , Masculino , Persona de Mediana Edad , Distribución Aleatoria , Staphylococcus aureus/aislamiento & purificación
10.
Dis Markers ; 2017: 6758721, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28947844

RESUMEN

Pulmonary endothelium dysfunction is a key characteristic of ARDS. The aim of this study was to investigate endothelium-derived markers, such as angiopoietin-2 (Ang-2) and endothelial cell-specific molecule-1 (endocan), at the vascular and alveolar compartments as outcome predictors in ARDS. Fifty-three consecutive ARDS patients were studied. The primary outcome was 28-day mortality. Secondary endpoints were days of unassisted ventilation and days with organ failure other than ARDS, during the 28-day study period. Nonsurvivors presented higher lung injury scores and epithelial lining fluid (ELF) Ang-2 levels compared to survivors, with no significant differences in plasma Ang-2, endocan, and protein C concentrations between the two groups. In logistic regression analysis, ELF Ang-2 levels > 705 pg/ml were the only independent variable for 28-day mortality among the previous four. Plasma endocan values > 13 ng/pg were the only parameter predictive against days of unassisted ventilation during the 28-day study period. Finally, lung injury score > 2.25 and ELF Ang-2 levels > 705 pg/ml were associated with increased number of days with organ failure, other than ARDS. Our findings suggest that Ang-2 levels are increased in the alveolar compartment of ARDS patients, and this may be associated both with increased mortality and organ failure besides lung.


Asunto(s)
Angiopoyetina 2/sangre , Síndrome de Dificultad Respiratoria/sangre , Anciano , Biomarcadores/sangre , Proteína C-Reactiva/metabolismo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proteínas de Neoplasias/sangre , Proteoglicanos/sangre , Respiración Artificial/mortalidad , Síndrome de Dificultad Respiratoria/terapia
11.
Respir Care ; 61(7): 925-9, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27094394

RESUMEN

BACKGROUND: This study aimed to examine the relationship between hand-grip force and maximum inspiratory pressure (PImax) in healthy young and middle-age individuals. METHODS: All individuals underwent assessment of inspiratory muscle strength by maximum inspiratory pressure using a U-type water manometer and evaluation of hand-grip force by a hydraulic hand dynamometer. RESULTS: The correlation of PImax and hand-grip force was strong (r = 0.76). A multilinear regression model was built to investigate the ability of various parameters, such as hand-grip force, sex, and body mass index measurements, to predict PImax. PImax can be accurately predicted by 80% (r = 0.76) with a simple equation of easily evaluable factors, such as hand-grip force, body mass index, and sex. CONCLUSION: The results showed significant correlation between hand flexors' force and strength of inspiratory muscles in healthy individuals. This appears to be an easy way to evaluate the results indirectly and can help to assess the relationship between hand flexor and inspiratory muscle capacity, especially the diaphragm. Our study should be viewed as a hypothesis-generating one, and further studies are required in the population of critically ill or difficult-to-wean patients. (ClinicalTrials.gov registration NCT02423616.).


Asunto(s)
Fuerza de la Mano/fisiología , Capacidad Inspiratoria/fisiología , Presiones Respiratorias Máximas , Adulto , Anciano , Índice de Masa Corporal , Femenino , Voluntarios Sanos , Humanos , Modelos Lineales , Masculino , Manometría/métodos , Persona de Mediana Edad , Dinamómetro de Fuerza Muscular , Factores Sexuales , Adulto Joven
12.
J Crit Care ; 27(3): 294-300, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21855288

RESUMEN

PURPOSE: To define early kinetics of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) and of TREM-1 monocyte gene expression in critically ill patients with sepsis. METHODS: Blood was sampled at regular time intervals from 105 patients with sepsis. Concentrations of tumour necrosis factor α (TNFα), interleukin (IL)-6, IL-8 and IL-10 and IL-12p70 and sTREM-1 were measured by an enzyme immunoassay. Blood mononuclear cells were isolated on day 0 from 20 patients and 10 healthy volunteers; RNA was extracted and gene expression of TREM-1 and TNFα were assessed by reverse transcriptase polymerase chain reaction. RESULTS: Early serum concentrations of sTREM-1 were greater among patients with severe sepsis/shock than among patients with sepsis; those of TNFα, IL-6, IL-8 and IL-10 were pronounced among patients with septic shock. Gene transcripts of TNFα were lower among patients with severe sepsis/shock than among patients with sepsis; that was not the case for TREM-1. Early serum levels of sTREM-1 greater than 180 pg/mL were predictors of shorter duration of mechanical ventilation. CONCLUSIONS: Although serum levels of sTREM-1 are increased early upon advent of severe sepsis/shock, gene expression of TREM-1 on monocytes in severe sepsis/shock is not increased. These findings add considerably to our knowledge on the pathophysiology of sepsis.


Asunto(s)
Biomarcadores/sangre , Glicoproteínas de Membrana/sangre , Receptores Inmunológicos/sangre , Sepsis/inmunología , Estudios de Casos y Controles , Citocinas/sangre , Femenino , Perfilación de la Expresión Génica , Humanos , Masculino , Glicoproteínas de Membrana/genética , Persona de Mediana Edad , Monocitos/química , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Receptores Inmunológicos/genética , Sepsis/diagnóstico , Choque Séptico/diagnóstico , Choque Séptico/inmunología , Receptor Activador Expresado en Células Mieloides 1 , Desconexión del Ventilador
14.
Chest ; 128(2): 1073-4; author reply 1074-5, 2005 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16100219
15.
Shock ; 33(2): 141-8, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19487972

RESUMEN

The mechanisms of the N-terminal-pro-brain natriuretic peptide (NT-pro-BNP) release in intensive care unit (ICU) patients with preserved ejection fraction (EF) are unclear. We investigated whether left ventricular (LV) dysfunction, as assessed by tissue Doppler imaging (TDI), is related to NT-pro-BNP levels in ICU patients with preserved EF and has a complementary value to NT-pro-BNP in the determination of in-hospital mortality. We examined 58 mechanically ventilated patients with no history of heart failure (age, 60 +/- 18 years; EF, 63% +/- 7%). The systolic (S) and early diastolic (E') velocity of the mitral annulus by TDI and the E/E' as well as NT-pro-BNP, troponin, lactate acid, blood oxygen (P(O2)/Fi(O2)), sepsis, and ICU mortality were assessed. Systolic, E', and E/E' correlated with age, P(O2)/Fi(O2), lactate acid, NT-pro-BNP, troponin, history of arterial hypertension, and diabetes (P < 0.05). By multivariate analysis, the determinants of NT-pro-BNP were S (P = 0.024), E/E' (P = 0.017), and sepsis (P = 0.015). An NT-pro-BNP greater than 941 pg/mL was a reliable predictor of LV diastolic dysfunction defined as a composite of E' less than or equal to 8 cm/s and/or mean E/E greater than or equal to 13 (area under the curve, 75%; P = 0.03). Patients with combined NT-pro-BNP greater than 941 pg/mL and abnormal TDI markers had increased creatinine levels and a lower MAP, P(O2)/Fi(O2), and survival rate than those with abnormal TDI or NT-pro-BNP alone or patients with normal TDI markers and NT-pro-BNP (25%, 60%, 70%, and 84%, respectively; P < 0.05). The addition of abnormal TDI in a model including NT-pro-BNP and sepsis increased the model's value for in-hospital mortality (P for change = 0.01). In ICU patients with preserved EF, LV diastolic dysfunction and sepsis determine NT-pro-BNP levels. Tissue Doppler imaging markers and NT-pro-BNP have a complementary value for in-hospital mortality.


Asunto(s)
Ecocardiografía Doppler , Unidades de Cuidados Intensivos , Péptido Natriurético Encefálico/sangre , Fragmentos de Péptidos/sangre , Disfunción Ventricular Izquierda/sangre , Disfunción Ventricular Izquierda/diagnóstico por imagen , Humanos , Disfunción Ventricular Izquierda/fisiopatología
16.
Shock ; 31(6): 561-7, 2009 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18838939

RESUMEN

Monitoring of central venous oxygen saturation (ScvO2) is considered comparable with mixed venous oxygen saturation (SvO2) in the initial resuscitation phase of septic shock. Our aim was to assess their agreement in septic shock in the intensive care unit setting and the effect of a potential difference in a computed parameter, namely, oxygen consumption (VO2). In addition, we sought for a central venous to pulmonary artery (PA) lactate gradient. We enrolled 37 patients with septic shock who were receiving noradrenaline infusions, and their attending physicians had placed a PA catheter for fluid management. Blood samples were drawn in succession from the superior vena cava, right atrium (RA), right ventricle, and PA. Hemodynamic and treatment parameters were monitored, and data were compared by correlation and Bland-Altman analysis. Mixed venous oxygen saturation was lower than ScvO2 (70.2% +/- 11.4% vs. 78.6% +/- 10.2%; P < 0.001), with a bias of -8.45% and 95% limits of agreement ranging from -20.23% to 3.33%. This difference correlated significantly to the noradrenaline infusion rate and the oxygen consumption and extraction ratio. These lower SvO2 values resulted in computed VO2v higher than the VO2cv (P < 0.001), with a bias of 104.97 mL min(-1) and 95% limits of agreement from -4.12 to 214.07 mL min(-1). Finally, lactate concentration was higher in the superior vena cava and RA than in the PA (2.42 +/- 3.15 and 2.35 +/- 3.16 vs. 2.17 +/- 3.19 mM; P < 0.01 for both comparisons). Thus, our data suggest that ScvO2 and SvO2 are not equivalent in intensive care unit patients with septic shock. Additionally, the substitution of ScvO2 for SvO2 in the calculation of VO2 produces unacceptably large errors. Finally, the decrease in lactate between RA and PA may support the hypothesis that the mixing of RA and coronary sinus blood is at least partially responsible for the difference between ScvO2 and SvO2.


Asunto(s)
Ácido Láctico/sangre , Oxígeno/sangre , Arteria Pulmonar , Choque Séptico/sangre , Vena Cava Superior , Anciano , Cateterismo de Swan-Ganz , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
17.
Shock ; 31(4): 342-7, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18791494

RESUMEN

The present study aimed to determine whether amino-terminal pro-brain natriuretic peptide (NT-pro-BNP) predicts intensive care unit (ICU) mortality in a cohort of general, noncardiac, critically ill patients. To this end, a total of 233 consecutive mechanically ventilated patients (109 men) having a median age of 60 years and a wide range in admitting diagnoses, including medical (n = 118), surgical (n = 83), and multiple trauma (n = 32) cases were prospectively studied. Median Acute Physiology and Chronic Health Evaluation (APACHE) II and Sequential Organ Failure Assessment scores on ICU admission were 16 and 9, respectively. The study end point was ICU outcome. Blood samples were drawn on admission in the ICU and on postadmission days 1 and 2 to determine NT-pro-BNP levels. In a subgroup (n = 77), admission proinflammatory and anti-inflammatory cytokine levels, including TNF-alpha, IL-6, and IL-10, were also measured. Nonsurvivors (n = 98) had significantly higher NT-pro-BNP levels than survivors (n = 135) on admission in the ICU (2,074 vs. 283 pg/mL; P < 0.001), on day 1 (2,197 vs. 221 pg/mL; P < 0.001), and on day 2 (2,726 vs. 139 pg/mL; P < 0.001). Median values for TNF-alpha, IL-6, and IL-10 were 3.70, 131.57, and 111.88 pg/mL, respectively. Receiver operating characteristic analysis showed that the area under the receiver operating characteristic curve in predicting ICU mortality was 0.70 for APACHE II and 0.77 for admission NT-pro-BNP (P = 0.08). The cutoff in admission NT-pro-BNP that best predicted outcome was 941 pg/mL. Multiple logistic regression analysis revealed that APACHE II score (odds ratio, 1.06; P = 0.007) and the best cutoff point in admission NT-pro-BNP (odds ratio, 7.74; P < 0.001) independently predicted ICU mortality, even if cytokines were entered in the analysis. In conclusion, plasma NT-pro-BNP is frequently raised in noncardiac, mixed, critically ill patients, and nonsurvivors have consistently higher levels than survivors. Elevated admission NT-pro-BNP represents an independent predictor for poor ICU outcome in the presence of clinical severity scores.


Asunto(s)
Enfermedad Crítica/clasificación , Unidades de Cuidados Intensivos , Péptido Natriurético Encefálico/sangre , Fragmentos de Péptidos/sangre , APACHE , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Enfermedad Crítica/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Análisis de Regresión , Adulto Joven
18.
Cytokine ; 37(1): 55-61, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17428673

RESUMEN

BACKGROUND: The course of serum cytokine levels in patients with postoperative systemic inflammatory response syndrome (SIRS) after major abdominal surgery remains currently unclear. METHODS: Blood was sampled pre- and post-operatively and on days 1 and 2 in 40 patients undergoing major abdominal surgery. Concentrations of tumour necrosis factor-alpha (TNFalpha), interleukin (IL) -6, IL-8, and IL-10 were measured by the LINCOplex assay; those of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) by an enzyme immunoassay. RESULTS: Compared to their pre-operative values, sTREM-1 was elevated on day 2; TNFalpha on day 1; IL-6 and IL-10 post-operatively and on days 1 and 2; and IL-8 post-operatively and on day 1. The duration of operation correlated with TNFalpha and IL-10 at all sampling times, and with IL-6 post-operatively. There were no differences in cytokine concentrations between patients who exhibited post-operative complications and those who did not. IL-10/TNFalpha below 30 was found in all patients with complications (100%) and in 20 patients without complications (64.5%, p: 0.043). CONCLUSIONS: SIRS following major surgery is characterised by complex alterations in cytokine concentrations. The balance between TNFalpha and IL-10 seems to determine the occurrence of post-operative complications.


Asunto(s)
Abdomen/cirugía , Interleucina-10/sangre , Complicaciones Posoperatorias/sangre , Síndrome de Respuesta Inflamatoria Sistémica/sangre , Síndrome de Respuesta Inflamatoria Sistémica/etiología , Factor de Necrosis Tumoral alfa/sangre , Anciano , Biomarcadores , Femenino , Humanos , Interleucina-6/sangre , Interleucina-8/sangre , Masculino , Glicoproteínas de Membrana/sangre , Complicaciones Posoperatorias/patología , Receptores Inmunológicos/sangre , Síndrome de Respuesta Inflamatoria Sistémica/patología , Receptor Activador Expresado en Células Mieloides 1
19.
Pediatr Int ; 47(2): 180-4, 2005 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15771697

RESUMEN

BACKGROUND: The aim of this study was to investigate the requirements and practical steps for screening of Mycobacterium tuberculosis (MTB) transmission among high school student populations in two regional high schools of central Greece. Case-matched control populations from other regional schools were included. METHODS: Case study of two indexed cases, 61 close contacts, 212 casual contacts and 369 controls were investigated. Detailed questionnaires, tuberculin-skin test (PPD test), chest radiography, medical evaluation and DNA fingerprinting of sputum isolates were used. RESULTS: In case A, three (1.97%) of 152 close and casual contacts developed tuberculosis, and a further 25 (16.4%) were classified as infected. In contrast, none of the 121 close or casual contacts investigated for Case B developed tuberculosis or were classified as infected. None of the control populations contained infected individuals. Contacts of case A had a much higher risk (3.08 < RR = 22.29 < 161.69, P < 0.001) of being infected than contacts of case B. Two different strains of MTB were found responsible for these outbreaks. CONCLUSION: There was a considerable difference in the infectivity of the two cases presumably due to environmental and clinical factors, although two different MTB strains were responsible. It is proposed that the extent of case investigation should be individualized with particular emphasis placed among close contacts.


Asunto(s)
Tuberculosis Pulmonar/transmisión , Adolescente , Trazado de Contacto , Femenino , Grecia , Humanos , Estudiantes , Prueba de Tuberculina
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA