Factores clínico-radiológicos asociados con muerte encefálica precoz / Clinico-radiological related to early brain death factors

Objective: To identify clinical and radiological factors associated to early evolution to brain death (BD), defined as occurring within the first 24 h. Design A retrospective cohort study was made covering the period 2015−2017. Setting An adult Intensive Care Unit (ICU).Patients/methodsEpidemiological, clinical and imaging (CT scan) parameters upon admission to the ICU in patients evolving to BD. Results A total of 166 patients with BD (86 males, mean age 62.7 years) were analyzed. Primary cause: intracerebral hemorrhage 42.8%, subarachnoid hemorrhage 18.7%, traumatic brain injury 17.5%, anoxia 9%, stroke 7.8%, other causes 4.2%. Epidemiological data: arterial hypertension 50%, dyslipidemia 34%, smoking 33%, antiplatelet medication 21%, alcoholism 19%, anticoagulant therapy 15%, diabetes 15%. The Glasgow Coma Score (GCS) upon admission was 3 in 68.8% of the cases in early BD versus in 38.2% of the cases in BD occurring after 24 h (p = 0.0001). Eighty-five patients presented supratentorial hematomas with a volume of 90.9 ml in early BD versus 82.7 ml in BD > 24 h (p = 0.54). The mean midline shift was 10.7 mm in early BD versus 7.8 mm in BD > 24 h (p = 0.045). Ninety-one patients presented ventriculomegaly and 38 additionally ependymal transudation (p = 0.021). Thirty-six patients with early BD versus 24 with BD > 24 h presented complete effacement of basal cisterns (p = 0.005), sulcular effacement (p = 0.013), loss of cortico-subcortical differentiation (p = 0.0001) and effacement of the suprasellar cistern (p = 0.005). The optic nerve sheath measurements showed no significant differences between groups.ConclusionsEarly BD (>24 h) was associated to GCS < 5, midline shift, effacement of the basal cisterns, cerebral sulci and suprasellar cistern, and ependymal transudation (AU)

Objetivo: Identificar los factores clínico-radiológicos que se asocian a evolución precoz a muerte encefálica (ME), definida esta como la ocurrida en ≤24 horas Diseño Estudio de cohortes retrospectivo desde 2015 hasta 2017, ambos incluidos. Ámbito Servicio de Medicina Intensiva (SMI) de adultos.Pacientes y métodoAnálisis de variables clínico-epidemiológicas y de la TC craneal de ingreso en pacientes con evolución a ME. Resultados Se analizaron 166 ME, 86 varones, edad media 62,7 años, 42,8% hemorragia intracerebral, 18,7% HSA, 17,5% TCE, 7,8% ictus isquémico, 9% anoxia y 4,2% otras causas; 50% HTA, 34% dislipemia, 33% tabaquismo, 21% antiagregación, 19% enolismo. El 15% anticoagulación, 15% diabetes. El GCS fue tres en el 68,8% en ME precoz frente 38,2% en ME >24 h (p 0,0001); 85 hematoma supratentorial (90,9 mL en ME precoz vs. 82,7 mL ME tardía, p 0,54); 12 hematoma infratentorial. Desplazamiento medio de línea media 10,7 mm en ME precoz vs. 7,8 mm en ME tardía (p 0,045); 91 pacientes ventriculomegalia y 38 trasudado periependimario (p 0,021). Borramiento completo de cisternas basales 36 en ME precoz frente a 24 en ME tardía (p 0,005), borramiento de surcos (p 0,013), pérdida de diferenciación córtico-subcortical (p 0,0001) y ausencia de cisterna supraselar (p 0,005). La medición de la vaina del nervio óptico no mostró diferencias significativas entre los dos grupos.ConclusionesSe asoció con ME ≤ 24 horas el GCS < 5, el desplazamiento de línea media, la pérdida de diferenciación córtico-subcortical, el borramiento de surcos, el borramiento completo de cisternas basales, de la cisterna supraselar y la presencia de trasudado periependimario (AU)

Clinico-radiological related to early brain death factors.

OBJECTIVE: To identify clinical and radiological factors associated to early evolution to brain death (BD), defined as occurring within the first 24 h. DESIGN: A retrospective cohort study was made covering the period 2015-2017. SETTING: An adult Intensive Care Unit (ICU). PATIENTS/METHODS: Epidemiological, clinical and imaging (CT scan) parameters upon admission to the ICU in patients evolving to BD. RESULTS: A total of 166 patients with BD (86 males, mean age 62.7 years) were analyzed. Primary cause: intracerebral hemorrhage 42.8%, subarachnoid hemorrhage 18.7%, traumatic brain injury 17.5%, anoxia 9%, stroke 7.8%, other causes 4.2%. Epidemiological data: arterial hypertension 50%, dyslipidemia 34%, smoking 33%, antiplatelet medication 21%, alcoholism 19%, anticoagulant therapy 15%, diabetes 15%. The Glasgow Coma Score (GCS) upon admission was 3 in 68.8% of the cases in early BD versus in 38.2% of the cases in BD occurring after 24 h (p = 0.0001). Eighty-five patients presented supratentorial hematomas with a volume of 90.9 ml in early BD versus 82.7 ml in BD > 24 h (p = 0.54). The mean midline shift was 10.7 mm in early BD versus 7.8 mm in BD > 24 h (p = 0.045). Ninety-one patients presented ventriculomegaly and 38 additionally ependymal transudation (p = 0.021). Thirty-six patients with early BD versus 24 with BD > 24 h presented complete effacement of basal cisterns (p = 0.005), sulcular effacement (p = 0.013), loss of cortico-subcortical differentiation (p = 0.0001) and effacement of the suprasellar cistern (p = 0.005). The optic nerve sheath measurements showed no significant differences between groups. CONCLUSIONS: Early BD (>24 h) was associated to GCS < 5, midline shift, effacement of the basal cisterns, cerebral sulci and suprasellar cistern, and ependymal transudation.

Clinico-radiological related to early brain death factors. / Factores clínico-radiológicos asociados con muerte encefálica precoz.

OBJECTIVE: To identify clinical and radiological factors associated to early evolution to brain death (BD), defined as occurring within the first 24 hours. DESIGN: A retrospective cohort study was made covering the period 2015-2017. SETTING: An adult Intensive Care Unit (ICU). PATIENTS/METHODS: Epidemiological, clinical and imaging (CT scan) parameters upon admission to the ICU in patients evolving to BD. RESULTS: A total of 166 patients with BD (86 males, mean age 62.7 years) were analyzed. Primary cause: intracerebral hemorrhage 42.8%, subarachnoid hemorrhage 18.7%, traumatic brain injury 17.5%, anoxia 9%, stroke 7.8%, other causes 4.2%. Epidemiological data: arterial hypertension 50%, dyslipidemia 34%, smoking 33%, antiplatelet medication 21%, alcoholism 19%, anticoagulant therapy 15%, diabetes 15%. The Glasgow Coma Score (GCS) upon admission was 3 in 68.8% of the cases in early BD versus in 38.2% of the cases in BD occurring after 24 h (p = 0.0001). Eighty-five patients presented supratentorial hematomas with a volume of 90.9 ml in early BD versus 82.7 ml in BD >24 h (p = 0.54). The mean midline shift was 10.7 mm in early BD versus 7.8 mm in BD >24 h (p = 0.045). Ninety-one patients presented ventriculomegaly and 38 additionally ependymal transudation (p = 0.021). Thirty-six patients with early BD versus 24 with BD >24 h presented complete effacement of basal cisterns (p = 0.005), sulcular effacement (p = 0.013), loss of cortico-subcortical differentiation (p = 0.0001) and effacement of the suprasellar cistern (p = 0.005). The optic nerve sheath measurements showed no significant differences between groups. CONCLUSIONS: Early BD (>24 h) was associated to GCS < 5, midline shift, effacement of the basal cisterns, cerebral sulci and suprasellar cistern, and ependymal transudation.

Control de una endemia de Acinetobacter baumannii multirresistente en la UCI. Recordando lo obvio / Control of an Acinetobacter baumannii multidrug resistance endemic in the ICU. Recalling the obvious

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Prácticas clínicas al final de la vida en pacientes con daño cerebral catastrófico en España: implicaciones para la donación de órganos / End-of-life practices in patients with devastating brain injury in Spain: implications for organ donation

OBJETIVO: Describir las prácticas clínicas al final de la vida relevantes para la donación de órganos en pacientes con daño cerebral catastrófico en España. DISEÑO: Estudio multicéntrico prospectivo de una cohorte retrospectiva. Periodo: 1 de noviembre de 2014 al 30 de abril de 2015. Ámbito: Sesenta y ocho hospitales autorizados para donación. PACIENTES: Pacientes fallecidos por daño cerebral catastrófico (posibles donantes). Edad: 1 mes-85 años. Variables de interés principales: Cuidado recibido, donación en muerte encefálica, donación en asistolia controlada, intubación/ventilación, notificación al coordinador de trasplantes. RESULTADOS: Se identificaron 1.970 posibles donantes. La mitad recibió tratamiento activo en una Unidad de Críticos (UC) hasta evolucionar a muerte encefálica (27%), sufrir una parada cardiorrespiratoria (5%), o hasta la limitación de tratamiento de soporte vital (19%). Del resto, un 10% ingresó en una UC para facilitar la donación y el 39% nunca ingresó en una UC. De los pacientes que evolucionaron a muerte encefálica (n=695), la mayoría derivaron en una donación eficaz (n=446; 64%). De los pacientes fallecidos tras limitación de tratamiento de soporte vital (n=537), 45 (8%) se convirtieron en donantes en asistolia eficaces. La ausencia de un programa de donación en asistolia controlada fue el motivo más frecuente de no donación. El 37% de los posibles donantes falleció sin intubar/ventilar, fundamentalmente porque el profesional responsable no consideró la donación tras descartar intubación terapéutica. El 36% de los posibles donantes no fue notificado al coordinador de trasplantes. CONCLUSIONES: Aunque el proceso de donación está optimizado en España, existen oportunidades para la mejora en la detección de posibles donantes fuera de UC y en la consideración de la donación en asistolia controlada en pacientes fallecidos tras limitación de tratamiento de soporte vital

OBJECTIVE: To describe end-of-life care practices relevant to organ donation in patients with devastating brain injury in Spain. DESIGN: A multicenter prospective study of a retrospective cohort. Period: 1 November 2014 to 30 April 2015. SETTING: Sixty-eight hospitals authorized for organ procurement. PATIENTS: Patients dying from devastating brain injury (possible donors). Age: 1 month-85 years. Primary endpoints: Type of care, donation after brain death, donation after circulatory death, intubation/ventilation, referral to the donor coordinator. RESULTS: A total of 1,970 possible donors were identified, of which half received active treatment in an Intensive Care Unit (ICU) until brain death (27%), cardiac arrest (5%) or the withdrawal of life-sustaining therapy (19%). Of the rest, 10% were admitted to the ICU to facilitate organ donation, while 39% were not admitted to the ICU. Of those patients who evolved to a brain death condition (n=695), most transitioned to actual donation (n=446; 64%). Of those who died following the withdrawal of life-sustaining therapy (n=537), 45 (8%) were converted into actual donation after circulatory death donors. The lack of a dedicated donation after circulatory death program was the main reason for non-donation. Thirty-seven percent of the possible donors were not intubated/ventilated at death, mainly because the professional in charge did not consider donation alter discarding therapeutic intubation. Thirty-six percent of the possible donors were never referred to the donor coordinator. CONCLUSIONS: Although deceased donation is optimized in Spain, there are still opportunities for improvement in the identification of possible donors outside the ICU and in the consideration of donation after circulatory death in patients who die following the withdrawal of life-sustaining therapy

End-of-life practices in patients with devastating brain injury in Spain: implications for organ donation. / Prácticas clínicas al final de la vida en pacientes con daño cerebral catastrófico en España: implicaciones para la donación de órganos.

OBJECTIVE: To describe end-of-life care practices relevant to organ donation in patients with devastating brain injury in Spain. DESIGN: A multicenter prospective study of a retrospective cohort. PERIOD: 1 November 2014 to 30 April 2015. SETTING: Sixty-eight hospitals authorized for organ procurement. PATIENTS: Patients dying from devastating brain injury (possible donors). Age: 1 month-85 years. PRIMARY ENDPOINTS: Type of care, donation after brain death, donation after circulatory death, intubation/ventilation, referral to the donor coordinator. RESULTS: A total of 1,970 possible donors were identified, of which half received active treatment in an Intensive Care Unit (ICU) until brain death (27%), cardiac arrest (5%) or the withdrawal of life-sustaining therapy (19%). Of the rest, 10% were admitted to the ICU to facilitate organ donation, while 39% were not admitted to the ICU. Of those patients who evolved to a brain death condition (n=695), most transitioned to actual donation (n=446; 64%). Of those who died following the withdrawal of life-sustaining therapy (n=537), 45 (8%) were converted into actual donation after circulatory death donors. The lack of a dedicated donation after circulatory death program was the main reason for non-donation. Thirty-seven percent of the possible donors were not intubated/ventilated at death, mainly because the professional in charge did not consider donation alter discarding therapeutic intubation. Thirty-six percent of the possible donors were never referred to the donor coordinator. CONCLUSIONS: Although deceased donation is optimized in Spain, there are still opportunities for improvement in the identification of possible donors outside the ICU and in the consideration of donation after circulatory death in patients who die following the withdrawal of life-sustaining therapy.

Es tiempo de cambiar la política de visitas en la UCI / It is time to change the visiting policy in intensive care units

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Política de visitas, diseño y confortabilidad en las unidades de cuidados intensivos españolas / Visitation policy, design and comfort in Spanish intensive care units

Objetivo. Conocer el diseño y confortabilidad de las unidades de cuidados intensivos (UCI). Analizar el horario de visitas, la información y la participación familiar en los cuidados del paciente. Diseño. Estudio multicéntrico, descriptivo. Ámbito. Unidades de cuidados intensivos de España. Método. Cuestionario enviado por correo electrónico a los socios de la Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias (SEMICYUC), suscriptores de la Revista Electrónica de Medicina Intensiva y difundido por el blog Proyecto HU-CI. Resultados. Se analizaron 135 encuestas pertenecientes a 131 hospitales. Horario de visitas: 3,8% tienen horario abierto 24 h, 9,8% horario abierto diurno y 67,7% tienen 2 visitas/día. Información: la realiza solamente el médico en el 75,2%, médico y enfermera juntos 4,5% con una frecuencia de una vez/día en el 79,7%. Los fines de semana se informa en el 95,5%. Información telefónica 74,4%. Participación familiar en los cuidados del paciente: higiene 11%, administración de comida 80,5% y fisioterapia 17%. Objetos personales permitidos: teléfono móvil 41%, ordenador 55%, equipo de música 77%, televisión 30%. Arquitectura y confortabilidad: todos los boxes individuales 60,2%, luz natural 54,9%, televisión 7,5%, música ambiental 12%, reloj en el box 15,8%, medidor de ruido ambiental 3,8% y sala de espera cercana a UCI 68,4%. Conclusiones. La política de visitas es restrictiva, predominando una cultura de UCI cerrada. Generalmente no se permiten medios de comunicación tecnológicos. Hay poca incorporación de la familia en los cuidados del paciente. El diseño de la UCI no garantiza la privacidad ni proporciona la confortabilidad deseable (AU)

Objective. To determine the design and comfort in the Intensive Care Units (ICUs), by analysing visiting hours, information, and family participation in patient care. Design. Descriptive, multicentre study. Setting. Spanish ICUs. Methods. A questionnaire e-mailed to members of the Spanish Society of Intensive Care Medicine, Critical and Coronary Units (SEMICYUC), subscribers of the Electronic Journal Intensive Care Medicine, and disseminated through the blog Proyecto HU-CI. Results. A total of 135 questionnaires from 131 hospitals were analysed. Visiting hours: 3.8% open 24 h, 9.8% open daytime, and 67.7% have 2 visits a day. Information: given only by the doctor in 75.2% of the cases, doctor and nurse together in 4.5%, with a frequency of once a day in 79.7%. During weekends, information is given in 95.5% of the cases. Information given over the phone 74.4%. Family participation in patient care: hygiene 11%, feeding 80.5%, physiotherapy 17%. Personal objects allowed: mobile phone 41%, computer 55%, sound system 77%, and television 30%. Architecture and comfort: all individual cubicles 60.2%, natural light 54.9%, television 7.5%, ambient music 12%, clock in the cubicle 15.8%, environmental noise meter 3.8%, and a waiting room near the ICU 68.4%. Conclusions. Visiting policy is restrictive, with a closed ICU being the predominating culture. On average, technological communication devices are not allowed. Family participation in patient care is low. The ICU design does not guarantee privacy or provide a desirable level of comfort (AU)

[Visitation policy, design and comfort in Spanish intensive care units]. / Política de visitas, diseño y confortabilidad en las unidades de cuidados intensivos españolas.

OBJECTIVE: To determine the design and comfort in the Intensive Care Units (ICUs), by analysing visiting hours, information, and family participation in patient care. DESIGN: Descriptive, multicentre study. SETTING: Spanish ICUs. METHODS: A questionnaire e-mailed to members of the Spanish Society of Intensive Care Medicine, Critical and Coronary Units (SEMICYUC), subscribers of the Electronic Journal Intensive Care Medicine, and disseminated through the blog Proyecto HU-CI. RESULTS: A total of 135 questionnaires from 131 hospitals were analysed. Visiting hours: 3.8% open 24h, 9.8% open daytime, and 67.7% have 2 visits a day. Information: given only by the doctor in 75.2% of the cases, doctor and nurse together in 4.5%, with a frequency of once a day in 79.7%. During weekends, information is given in 95.5% of the cases. Information given over the phone 74.4%. Family participation in patient care: hygiene 11%, feeding 80.5%, physiotherapy 17%. Personal objects allowed: mobile phone 41%, computer 55%, sound system 77%, and television 30%. Architecture and comfort: all individual cubicles 60.2%, natural light 54.9%, television 7.5%, ambient music 12%, clock in the cubicle 15.8%, environmental noise meter 3.8%, and a waiting room near the ICU 68.4%. CONCLUSIONS: Visiting policy is restrictive, with a closed ICU being the predominating culture. On average, technological communication devices are not allowed. Family participation in patient care is low. The ICU design does not guarantee privacy or provide a desirable level of comfort.

Limitaciones del Doppler transcraneal en el diagnóstico de la muerte encefálica / Limitations of transcranial Doppler in the diagnosis of brain death

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Doppler transcraneal en el diagnóstico de la muerte encefálica. ¿Es útil o retrasa el diagnóstico? / Transcranial Doppler ultrasound in the diagnosis of brain death. Is it useful or does it delay the diagnosis?

El Doppler transcraneal permite demostrar la parada circulatoria cerebral que acompaña a la muerte encefálica, siendo especialmente útil en pacientes sedados, o en los que no puede realizarse la exploración neurológica completa. El Doppler transcraneal es una técnica portátil, no invasiva y de alta disponibilidad. Entre sus limitaciones está la ausencia de ventana sónica y los casos falsos negativos. En pacientes con diagnóstico clínico de muerte encefálica, que tienen cráneos abiertos o anoxia como causa de la muerte, puede sonorizarse flujo sanguíneo cerebral, ya que la parada circulatoria cerebral no siempre es sincrónica con el diagnóstico clínico. Su rentabilidad diagnóstica es, por tanto, dependiente del tiempo, hecho que debe ser reconocido para no retrasar la declaración de muerte. A pesar de sus limitaciones, el Doppler transcraneal ayuda a resolver frecuentes problemas diagnósticos, evita un consumo innecesario de recursos y puede optimizar la obtención de órganos para trasplante

Transcranial Doppler ultrasound is able to demonstrate cerebral circulatory arrest associated to brain death, being especially useful in sedated patients, or in those in which complete neurological exploration is not possible. Transcranial Doppler ulstrasound is a portable, noninvasive and high-availability technique. Among its limitations, mention must be made of the absence of acoustic windows and false-negative cases. In patients clinically diagnosed with brain death, with open skulls or with anoxia as the cause of death, cerebral blood flow can be observed by ultrasound, since cerebral circulatory arrest is not always synchronized to the clinical diagnosis. The diagnostic rate is therefore time-dependent, and this fact that must be recognized in order to avoid delays in death certification. Despite its limitations, transcranial Doppler ulstrasound helps solve common diagnostic problems, avoids the unnecessary consumption of resources, and can optimize organ harvesting for transplantation

Transcranial Doppler ultrasound in the diagnosis of brain death. Is it useful or does it delay the diagnosis?

Transcranial Doppler ultrasound is able to demonstrate cerebral circulatory arrest associated to brain death, being especially useful in sedated patients, or in those in which complete neurological exploration is not possible. Transcranial Doppler ulstrasound is a portable, noninvasive and high-availability technique. Among its limitations, mention must be made of the absence of acoustic windows and false-negative cases. In patients clinically diagnosed with brain death, with open skulls or with anoxia as the cause of death, cerebral blood flow can be observed by ultrasound, since cerebral circulatory arrest is not always synchronized to the clinical diagnosis. The diagnostic rate is therefore time-dependent, and this fact that must be recognized in order to avoid delays in death certification. Despite its limitations, transcranial Doppler ulstrasound helps solve common diagnostic problems, avoids the unnecessary consumption of resources, and can optimize organ harvesting for transplantation.

Liver transplantation complications in the intensive care unit and at 6 months.

OBJECTIVE: This study sought to determine the factors that influence the 6-month outcomes of liver transplants. PATIENTS AND METHODS: One hundred ninety-six variables (donor, recipient, operation, intensive care unit [ICU], evolution at 3 and 6 months) were collected from the first 74 consecutive liver transplantation performed from 2002 to 2004. The primary endpoint was patient survival at 6 months. The statistical analysis included a screening univariate analysis followed by a stepwise logistic regression with forward inclusion to test independent associations and finally generation of receiver-operator characteristic (ROC) curves to evaluate predictive factors. RESULTS: Patient survival at 6 months was 86%, namely 10 deaths, including 4 intraoperatively and 6 postoperatively due to sepsis. Complications in the ICU were classified as reoperations due to biliary problems, vascular complications, and peritonitis. Late complications included 51% rejection episodes, 24% infections, 11% pleural effusions, and 16% diabetes mellitus. Logistic regression analysis showed independent negative predictors of survival were the number of packed red cells during transplantation, the number of fresh frozen plasma units administered in the ICU, blood urea nitrogen (BUN) concentration in the ICU, and graft complications. The odds ratios of these variables were 10.2, 5.2, 42.1, and 36.9, respectively. The area under the curve (AUC) of the ROC was 0.99; the sensitivity was 94%; and the specificity was 100%. The independent predictors of surgical complications were the length of the operation, the need for pressor support, and the number of fresh frozen plasma units administered in the operating room, with odds ratios of 1.0, 7.7, and 1.1, respectively. CONCLUSION: This study revealed specific operative and ICU variables that correlated with the evolution of our patients.

Acidosis láctica y terapia anti-VIH: una asociación infrecuente / Lactic acidosis and human immunodeficiency virus therapy: an infrequent association

La toxicidad mitocondrial es un efecto adverso poco frecuente del tratamiento con algunos antirretrovirales que, entre otros síntomas, se manifiesta por acidosis láctica. Describimos el caso de una paciente con infección por el virus de la inmunodeficiencia humana (VIH) que había recibido tratamiento con antirretrovirales del tipo inhibidores de la transcriptasa inversa e inhibidores de la proteasa durante un año y que ingresó en la unidad de cuidados intensivos (UCI) por un cuadro de shock e insuficiencia renal aguda oligúrica. En los diferentes estudios realizados, destacaba una acidosis láctica grave. A pesar de la retirada del tratamiento con antirretrovirales la paciente evolucionó hacia el fracaso multiorgánico (respiratorio, hemodinámico, renal y hematológico), y falleció a las 20 horas del ingreso (AU)