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The concept of continuity of care by intensivists as an element of quality control in the medical care of Intensive Care Unit (ICU) patients surviving multiple organ dysfunction syndrome has led to a rethinking of the ICU model in recent years. We discuss the rationale to design and implement a hospital-based, prospective, randomized, multicenter Intervention/Control study in order to estimate the impact of an interdisciplinary intervention during the post-ICU recovery phase on medium-term medical outcomes in ICU patients with multiple organ dysfunction.

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La incorporación del concepto «continuidad asistencial» como elemento de calidad en los procesos asistenciales en pacientes de Unidad de Cuidados Intensivos (UCI) que sobreviven al fallo multiorgánico grave lleva a replantear el modelo de UCI de los últimos años. En este artículo se argumentan las bases que llevaron a plantear un estudio multicéntrico de base hospitalaria, prospectivo, aleatorizado tipo «intervención»/«control», con el fin de observar el impacto de una intervención interdisciplinar sobre los resultados asistenciales, a medio plazo, en los pacientes de UCI afectos de un fracaso multiorgánico durante la fase de recuperación post-UCI

The concept of continuity of care by intensivists as an element of quality control in the medical care of Intensive Care Unit (ICU) patients surviving multiple organ dysfunction syndrome has led to a rethinking of the ICU model in recent years. We discuss the rationale to design and implement a hospital-based, prospective, randomized, multicenter Intervention/Control study in order to estimate the impact of an interdisciplinary intervention during the post-ICU recovery phase on medium-term medical outcomes in ICU patients with multiple organ dysfunction

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En este artículo se plantean las dificultades que existen hoy para definir, en una fase temprana, el nivel de conciencia en los casos de sospecha de estado vegetativo persistente (EVP) postanoxia cerebral y los dilemas que aparecen respecto a la toma de decisiones terapéuticas en estos enfermos. Se confirma que sin soporte vital avanzado este tipo de secuelas no tendría lugar. El diagnóstico de EVP se hace constar en un 0,9 por ciento de altas de las Unidades de Cuidados Intensivos (UCI) en España; en el EVP, la causa postanóxica es la tercera en frecuencia después de la etiología hemorrágica y el traumatismo craneoencefálico. Un estudio prospectivo, multicéntrico, español, de EVP postanoxia realizado en 2001 demostró la necesidad de reconsiderar las recomendaciones para el diagnóstico de certeza de EVP, revisar si se dispone de evidencia científica de pruebas instrumentales útiles para dicho diagnóstico y qué actitud debe tomar el médico intensivista ante esta posible eventualidad. Se plantean las siguientes preguntas: ¿cuándo puede establecerse que existe una situación de EV?, ¿qué actitud debe tomarse ante un EV? (AU)

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OBJECTIVE: To determine a method for the early diagnosis of candidiasis in non-neutropenic critically ill patients in order to reduce mortality. METHODS: A prospective study in non-neutropenic critically patients in whom Candida spp. were detected, was made in an intensive care unit (ICU) during an 8-year period from 3389 patients admitted. A diagnostic and therapeutic protocol was designed. Invasive candidiasis was defined according to dissemination and multifocality. RESULTS: Candida spp. were found in 145 cases (4.3%): 120 (83%) were considered as invasive candidiasis and 25 as colonisation (17%). The hospital mortality was 46% (67/145). A post-mortem study was carried out in 54% (36/67) of hospital deaths. Candida albicans was the most frequently isolated species (87%), followed by Candida glabrata (18%). There were 24 candidemias and three cases of endophtalmitis. Digestive and respiratory samples and non-C. albicans yeasts were risk factors for invasive candidiasis. The mortality rate was related statistically to invasive candidiasis and inversely to the appropriate antifungal treatment. CONCLUSIONS: Invasive candidiasis is related to digestive and respiratory samples and to the presence of non-C. albicans species. A simpler definition of invasive candidiasis in non-neutropenic critically ill patients will permit more rapid and accurate specific antifungal therapy.

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Microbial colonization and the incidence of catheter-related bloodstream infections (CR-BSI) associated with Oligon Vantex silver central venous catheters (CVC) in critically ill patients were determined. A prospective, randomized, controlled 17-month trial was carried out in an intensive care unit (ICU). All patients requiring a triple-lumen CVC for four days or longer were enrolled. Patients were randomized to receive a standard polyurethane CVC or an Oligon Vantex silver CVC. Before removal of the catheter either due to discharge from the ICU or suspected infection, blood for cultures was taken via the CVC and a peripheral site. Skin and hub swabs and catheter-tips were also cultured. Two hundred and six catheters, 103 in both groups, were evaluated. In the control group (CG) 45/103 (44%) and in the silver group (SG) 30/103 (29%) were colonized or had a CR-BSI (P=0.04). The SG was less likely to be colonized than the CG when the catheter remained in situ for eight days or less (P=0.03) or over 15 days (P=0.01); a second or subsequent catheter was present in the same patient (P=0.002), or if the CVC was placed in the internal jugular vein (P=0.05). Multivariate logistic-regression showed predisposing factors for catheter colonization were jugular and femoral sites, second or subsequent catheter, and being a member of the CG. CR-BSI occurred in five cases (four in CG). Rates of CR-BSI per 1000 catheter-days in the CG were 2.8 and in the SG, 0.8 (P<0.001). The Oligon Vantex silver catheter reduced the incidence of catheter-colonization and may decrease the risk of CR-BSI.

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We carry out a prospective study in order to determine the prognostic factors in the development of injuries of upper airways, and their influence in the decision to perform a tracheotomy. The time to tracheotomy was previously stated, according to the type of patient (neurological or non-neurological). This study includes the clinical data and the upper airways endoscopic exploration of 654 patients with oro-tracheal intubation and mechanical ventilation for more than 48 hours in a 6 year period. Three endoscopic explorations were carried out in the first month (early exploration), with two additional explorations at six and twelve months (late exploration). Using a multivariable statistical study we have analysed the prognostic factors and the risk groups for the development of later injuries of the upper airway of these patients. The later endoscopic exploration of the upper airways has shown injuries in 30 of 280 cases (11%). In this study, the main factor that determines the development of injuries of the upper airway was the time of intubation. The risk groups to develop later lesions of the upper airways include: patients with pathological background, patients with medical admissions, non-neurological patients and patients with serious lesions in the earlier endoscopic exploration. We conclude that it is necessary to state the time to perform a tracheotomy in patients with oro-tracheal intubation. It must be based on the own experience, the patient's clinical condition and the disease that caused hospital admission.

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Se realiza un análisis prospectivo para determinar los factores favorecedores del desarrollo de lesiones de la vía aérea y su influencia para llevar a cabo una traqueotomía en pacientes críticos. Se definen los tiempos de paso a traqueotomía en función del tipo de paciente (neurológico o no neurológico). Se recogen 654 pacientes consecutivos sometidos durante más de 48 horas a ventilación mecánica a lo largo de un periodo de 6 años. Se establecieron 3 controles endoscópicos durante el primer mes (exploración precoz) y dos posteriores, a los 6 y 12 meses (exploración tardía).Mediante un estudio estadístico multivariado se analizan los factores pronósticos y grupos de riesgo para el desarrollo de lesiones tardías. En la exploración tardía se observaron lesiones en 30/280 casos (11 por ciento). El principal factor influyente en el desarrollo de lesiones fue el tiempo de intubación. El grupo de riesgo de presentar lesiones tardías incluye: presencia de antecedentes patológicos, ingresos médicos, paciente no neurológico y presencia de lesiones graves en el período precoz. Se concluye que es preciso un calendario que defina el momento de pasar a traqueotomía. Este calendario ha de basarse en la propia experiencia, en las condiciones clínicas del paciente y en el tipo de enfermedad que motivó el ingreso. (AU)

We carry out a prospective study in order to determine the prognostic factors in the development of injuries of upper airways, and their influence in the decision to perform a tracheotomy. The time to tracheotomy was previously stated, according to the type of patient (neurological or non-neurological). This study includes the clinical data and the upper airways endoscopic exploration of 654 patients with oro-tracheal intubation and mechanical ventilation for more than 48 hours in a 6 year period. Three endoscopic explorations were carried out in the first month (early exploration), with two additional explorations at six and twelve months (late exploration). Using a multivariable statistical study we have analysed the prognostic factors and the risk groups for the development of later injuries of the upper airway of these patients. The later endoscopic exploration of the upper airways has shown injuries in 30 of 280 cases (11%). In this study, the main factor that determines the development of injuries of the upper airway was the time of intubation. The risk groups to develop later lesions of the upper airways include: patients with pathological background, patients with medical admissions, non-neurological patients and patients with serious lesions in the earlier endoscopic exploration. We conclude that it is necessary to state the time to perform a tracheotomy in patients with oro-tracheal intubation. It must be based on the own experience, the patient's clinical condition and the disease that caused hospital admission (AU)

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A prospective protocol for the management of the airway was applied to patients in the ICU. Acute complications due to intubation and tracheotomy as well as laryngo-tracheal lesions were studied in 125 consecutive patients during one year from the moment of extubation. Thirty four cases (27%) needed reintubation, and 58 tracheotomies were performed (46%). The average length of intubation was of 10 +/- 7 days. Sixty five patients (53%) had acute complications due to intubation and 30 (52%) had acute complications due to the traccotomy. The high incidence of laryngo-tracheal lesions in the 85 patients who underwent early exploration (76 cases [90%]) was reduced in those who underwent late exploration (11 cases [20%]). Analysis of possible prognostic factors in the development of late lesions allows us to affirm that a reduction in the length of intubation diminishes the presence of late lesions. We recommend the avoidance of oro-tracheal intubation prolonged for more than 10 days by the early carrying out of tracheotomy.

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Injuries of the laryngotracheal axis caused by prolonged intubation in critically ill patients raise the issue of the timing of tracheotomy in intubated patients. In 1992 a prospective study was begun in intensive care patients with intubation lasting more than 48 hours. Eight months later, post-mortem data on the laryngotracheal axis of deceased patients was added to our prospective study protocol. The study was closed with 125 cases (52 deceased). The clinical data of 73 surviving patients was compared with that of 18 post-mortem cases. The macroscopic results of the post-mortem study are summarized by grading the lesions according to a personal modification of the Lindholm classification. All cases had laryngotracheal injuries. Only 15% of the lesions were located in the tracheal region. Five cases were classified as grade 2, with an average orotracheal intubation of 9 days, 9 cases as grade 3 with 15 days intubation, and 4 cases as grade 4 with 21 days intubation. We concluded that the severity of laryngotracheal injuries in the early post-mortem exploration was related with the duration of intubation.

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Lesions caused by prolonged intubation and tracheostomy when performed in critically ill patients to keep the airways opened are a permanent topic of discussion between intensive care professionals and otolaryngologists. We present a prospective study of such complications following the guidelines elaborated by the intensive care unit and the otolaryngology department of our hospital. The outcomes obtained in the first-year follow up allow us to verify a high incidence of such lesions in the initial period (87%) and a markedly decreased frequency in the following twelve months (17%). Results also show the relation between prolonged intubation and the appearance of laryngotracheal lesions. We conclude that it is very important to reduce the intubation period by performing an earlier tracheostomy.

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The risk of being infected by candidiasis in an Intensive Care Unit (ICU) is evaluated, using an algorithm which allows the establishment of an early fungicidal treatment. This is a study which includes 34 patients with a mortality of 35%. Yeasts are detected from the second week at ICU, related with the long stay of patients at ICU and the relationship between mortality and age. The first positive sample usually does not indicate disseminate candidiasis (9%) or a positive blood culture (6%). Population defined as high risk for disseminated candidiasis (HRDC) with a negative blood culture has the worst prognosis (18 cases, 50% mortality rate). The six cases with HRDC with positive blood culture showed a mortality of 17%. In seven cases there were no HRDC criteria (mortality of 14%). With said study the existence or not of a HRDC could be determined, establishing the adequate antifungal treatment.

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It is discussed the case of cerebral paludism due to Plasmodium falciparum in a patient who travelled frequently to Ivory Coast and who had done an incorrect prophylaxis of paludism. It is underlined the relationship of cerebral presentation with the presence of multisystemic failure, which was characterized by respiratory distress, hyperdynamic shock, acute renal failure and hematological and digestive disorders. Shock forced the administration of vasoactive drugs (such as dopamine, dobutamine and methoxamine), respiratory failure to establish mechanical ventilation and coagulation disorders to transfuse platelets and plasma. Clinical evolution was favorable in few days thanks to an early symptomatic and etiology therapy.

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