Tratamiento del embarazo ectópico en cicatriz de cesárea: revisión de la literatura a propósito de 3 casos / Treatment of ectopic pregnancy in a cesarean scar: review of the literature regarding 3 cases

INTRODUCCIÓN Y OBJETIVOS: El embarazo en cicatriz de cesárea previa (ECC) es una entidad poco frecuente que puede tener graves consecuencias. Hasta la fecha no existen esquemas estandarizados de tratamiento y su manejo óptimo sigue siendo controvertido. Nuestro objetivo es realizar una revisión de la literatura publicada sobre el manejo del ECC y proponer un algoritmo. También exponemos tres casos de ECC resueltos con diferentes tratamientos en el Hospital Universitario Infanta Elena MÉTODOS: Búsqueda de la literatura en bases de datos utilizando las palabras clave: "embarazo en cicatriz cesárea"," gestación ectópica en cicatriz cesárea", "tratamiento", "manejo". RESULTADOS: Las opciones terapéuticas pueden ser médicas, quirúrgicas o una combinación de ambas. Los tratamientos quirúrgicos tienen altas tasas de éxito, sin embargo, son más invasivos y no están exentos de riesgo. La combinación de tratamientos parece aumentar la tasa de éxito, no obstante, podría implicar un mayor riesgo de efectos secundarios y costes. CONCLUSIONES: El manejo de los ECC debe de ser individualizado, basado en la evidencia científica, en los medios disponibles y la experiencia de los profesionales en los distintos procedimientos, guiándonos por el tipo de ECC y su grado de vascularización e invasión, grosor del miometrio, niveles de beta-hCG, presencia de actividad cardiaca, clínica y estabilidad hemodinámica de la paciente. Deben tenerse en cuenta las circunstancias y patología intercurrente de la mujer, así como su deseo genésico o de preservación del útero.

INTRODUCTION AND OBJECTIVES: Cesarean scar pregnancy (CSP) is a rare entity that can cause serious consequences. Up to now, there are no standardized treatment schemes, and its optimal management remains controversial. Our objetive is to review the literature regarding CSP management and propose an algorithm. We also present three cases of CSP resolved with different treatments at Hospital Universitario Infanta Elena. METHODS: Literature search in databases using the following keywords: pregnancy with cesarean section, ectopic pregnancy with cesarean section, treatment, management. RESULTS: The therapeutic options can be medical, surgical or a combination of both. Surgical treatments have high success rates; however, they are more invasive and are not without risk. The combination of treatments seems to increase the success rate; however, it could imply a higher risk of side effects and costs. CONCLUSIONS: The management of CSP must be individualized; based on scientific evidence, on the means available, and on the experience of the professionals in the different procedures; guided by the type of CSP and its degree of vascularization and invasion, by the thickness of the myometrium, beta-hCG levels, presence of cardiac activity, and by clinical and hemodynamic stability of the patient. The circumstances and intercurrent pathology of the patient must be considered, as well as her desire for future pregnancy or preservation of the uterus.

Toxicidad ungueal asociada al tratamiento con urea / Nail toxicity associated with urea treatment

La melanoniquia es la pigmentación de la lámina ungueal, esta alteración es inducida por diversas causas: procesos inflamatorios, traumatismos, enfermedades autoinmunes o medicamentos. Existen numerosos fármacos que pueden producir alteraciones en las uñas (antiinfeciosos, antineoplásicos, retinoides), siendo reversibles en la mayoría de casos tras la suspensión del fármaco. La hidroxiurea es uno de los agentes quimioterápicos identificados como causante en raras ocasiones de toxicidad ungueal. Se trata de un derivado hidoxilado de la urea, que actúa inhibiendo la síntesis de ADN.En este artículo, presentamos el caso de una paciente trasplantada pulmonar de 61 años con diagnóstico de diabetes insípida que, sin embargo, durante su ingreso desarrolló un SIADH (secreción inadecuada de hormona antidiurética). El SIADH fue tratado con restricción hídrica y urea, tras el inicio de dicho tratamiento empezó a presentar lesiones en uñas de las manos y de los pies, que remitieron con el tiempo tras su retirada. Ningún otro fármaco de los prescritos durante su ingreso se ha relacionado con la toxicidad ungueal, por tanto se consideró la urea como posible causante de las lesiones ungueales en esta paciente. Esta reacción fue notificada al Sistema Español de Farmacovigilancia. (AU)

Melanonychia is the pigmentation of the nail, this alteration is induced by diverse causes: inflammatory processes, traumatisms, autoimmune diseases or medications. There are numerous drugs that can produce alterations in the nails (anti-infectious, chemotherapy agents, retinoid), the alterations are reversible in most cases after drug discontinuation. Chemotherapeutic agent hydroxyurea is identified as a cause of nail toxicity rarely. It is a hydroxylated derivative of urea, which acts by inhibiting DNA synthesis.In this article, we present the case of a 61-year-old lung transplant patient diagnosed with diabetes insipidus who, however, developed SIADH (inadequate secretion of antidiuretic hormone) during his hospitalization, the patient received treatment with water restriction and urea. After the start of treatment, the patient began to present lesions on the nails of the hands and feet, which remitted with time after drug discontinuation. No other medication prescribed during admission has been linked to nail toxicity, so urea was considered a possible cause of nail lesions in this patient. This reaction was notified to the Spanish Pharmacovigilance System. (AU)

A propósito de un caso: útero miomatoso gigante torsionado / Torsion of a giant miomatous uterus: report of a clinical case autores

OBJETIVO: Reportar el caso de una torsión de útero, trompas y ambos ovarios a nivel de cuello uterino. Describir la patogenia, sintomatología y tratamiento, como un caso infrecuente y potencialmente grave, en la práctica clínica diaria. MATERIAL Y MÉTODOS: Analizar el curso de esta extremadamente rara patología, en una mujer postmenopáusica de 59 años. Se trata de un caso raro de torsión uterina en un útero no gestante, reportando los hallazgos en los exámenes previos a la cirugía y los hallazgos intraoperatorios e histopatológicos postcirugía. La resonancia magnética fue fundamental en el diagnóstico de la paciente y la laparotomía realizada demostró una torsión de cuerpo uterino de 360 ° a nivel de cérvix, y un gran mioma pediculado con signos de necrosis. Hemos revisado los últimos artículos de esta rara patología RESULTADOS Y DISCUSIÓN: La paciente fue operada. Se realizó una histerectomía total mediante una laparotomía media supra e infraumbilical. Los ovarios no tenían signos de necrosis. CONCLUSIONES: Debemos tener en cuenta esta posibilidad diagnóstica, en pacientes con aumento de tamaño uterino y clínica de dolor abdominal, ya que aunque es muy infrecuente, su diagnóstico es importante, ya que puede ser peligroso para la vida de la paciente.

OBJECTIVE: To report a case of torsion of the uterus, fallopian tubes and both ovaries around the uterine collum and the symptomatology, pathogenesis and treatment of this uncommon pathology. MATERIAL AND METHODS: The article analyses the course of this extremely rare pathology in a postmenopausical woman of 59 years. It is a rare case like a non gravid uterine torsion in a postmenopausical woman. We have the exams previous to the surgery, the finds intraoperative and the histolopathological reports postsurgery. RMN was the most important in diagnosis and the laparotomy showed a 360° an uterus increased on size and a big pedunculated myoma with signs of necrosis We have reviewed the latest articles on this strange pathology RESULTS AND DISCUSSION: The patient was operated. A infra-supra medium laparotomy was practiced and a total hysterectomy was made. Ovarians had not signs of necrosis. CONCLUSIONS: We must take into account, in patients with pathologies that increase uterine size and abdominal pain, the possibility of uterine torsion. Although it is a very infrequent pathology, its diagnosis is important, since it can be dangerous for the life of the patient

Bupivacaine Toxicity Increases Transmural Dispersion of Repolarization, Developing of a Brugada-like Pattern and Ventricular Arrhythmias, Which is Reversed by Lipid Emulsion Administration. Study in an Experimental Porcine Model.

Unintentional administration of bupivacaine may be associated with electrocardiogram changes that promote the development cardiac arrhythmias. Ventricular repolarization markers (corrected QT, QT dispersion, Tpeak-Tend and Tpeak-Tend dispersion) are useful to predict cardiac arrhythmias. We aim to investigate the effects of bupivacaine on the transmural dispersion of repolarization and their reversion following intravenous lipid emulsion (ILE) administration. Fourteen pigs were anaesthetized with thiopental and sevoflurane and underwent tracheal intubation. After instrumentation, a 4 mg kg-bolus of bupivacaine was administrated followed by an infusion of 100 µg kg-1 min-1. QT interval, QTc:QT corrected by heart rate, Tpeak-to-Tend interval and QT and Tpeak-to-Tend dispersion were determined in a sequential fashion: after bupivacaine (at 1 min, 5 min and 10 min) and after ILE (1.5 mL kg-1 over 1 min followed by an infusion of 0.25 mL kg-1 min-1). Three additional animals received only ILE (control group). Bupivacaine significantly prolonged QT interval (∆:36%), QT dispersion (∆:68%), Tpeak-to-Tend (∆:163%) and Tpeak-to-Tend dispersion (∆:98%), from baseline to 10 min. Dispersion of repolarization was related to lethal arrhythmias [three events, including asystole, sustained ventricular tachycardia (VT)] and repeated non-sustained VT (4/14, 28%). A Brugada-like-ECG pattern was visualized at V1-4 leads in 5/14 pigs (35%). ILE significantly decreased the alterations induced by bupivacaine, with the termination of VT within 10 min. No ECG changes were observed in control group. Bupivacaine toxicity is associated with an increase of transmural dispersion of repolarization, the occurrence of a Brugada-like pattern and malignant VA. ILE reverses the changes in dispersion of repolarization, favouring the disappearance of the Brugada-like pattern and VT.

Estudio radiológico para evaluar la difusión de dos volúmenes (10 vs. 20ml) de contraste radiopaco en el bloqueo de las ramas cutáneas de los nervios intercostales en la línea medio axilar (BRILMA) en un modelo experimental porcino / Radiological study to evaluate the spreading of two volumes (10 vs. 20ml) of radiological contrast in the block of cutaneous branches of intercostal nerves in medial axillary line (BRILMA) in a porcine experimental model

Objetivo: Los bloqueos interfasciales de la pared torácica se están desarrollando como alternativa a los bloqueos centrales en la cirugía de mama. Sin embargo, existen escasos estudios que hayan evaluado la extensión anatómica del anestésico local. Nuestro objetivo fue analizar, mediante fluoroscopia, la difusión de dos volúmenes (10 vs. 20ml) de contraste radiopaco (iopamidol) en el bloqueo del plano serrato-intercostal (BRILMA) en un modelo experimental porcino. Material y métodos: Se seleccionaron 10 cerdos de la raza Large-White a los que se realizó un bloqueo BRILMA ecoguiado bilateral, administrando 10 y 20ml de iopamidol en hemitórax izquierdo y derecho, respectivamente. La difusión del contraste se analizó por fluoroscopia. Se utilizó el test de correlación de Spearman para evaluar la relación entre el volumen administrado y la difusión radiológica. Se consideró significativo un valor de p<0,05. Resultados: Se realizaron 20 bloqueos, pudiéndose analizar 18. La administración de 10ml de contraste se asoció con una difusión media de 2,28±0,31 espacios (IC 95%: 2,01-2,54), mientras que la administración de 20ml mostró una difusión de 3±0,25 espacios (IC 95%: 2,81-3,18). Hubo una correlación significativa entre el volumen inyectado y la difusión del contraste (coeficiente de correlación de Spearman de 0,81; p=0,0001). Conclusión: Nuestros resultados demuestran una difusión dependiente del volumen en el bloqueo BRILMA, aunque sin guardar una relación 1:1. Duplicar el volumen ha incrementado en un 31% los segmentos bloqueados. Estos hallazgos, si se corroboran en la práctica clínica, permitirían un ajuste más preciso en el volumen de anestésico administrado

Objective: Interfascial blocks of the thoracic wall are being developed as an alternative to central blocks in breast surgery. However, there are few studies that have evaluated the anatomical extension of the local anaesthetic. The objective of this study was to analyse, using fluoroscopy, the spreading of two volumes (10 vs. 20ml) of radiological contrast in the serratus-intercostal plane block in an experimental pig model. Material: and methods Ten Large-White breed pigs were selected to have a bilateral ultrasound serratus-intercostal plane block performed, with the administering of 10ml and 20ml of iopamidol in the right and left hemithorax, respectively. The spreading of contrast was analysed by fluoroscopy. The Spearman test correlation was used to evaluate the relationship between the administered volume and radiological spreading. A value of P<.05 was considered significant. Results: Twenty anaesthetic blocks were performed, being able to analyse 18 of them. The administration of 10ml of contrast was associated with a mean spreading of 2.28±0.31 (95% CI; 2.01-2.54) intercostal spaces, while the administration of 20ml showed a spreading of 3±0.25 (95% CI; 2.81-3.18) intercostal spaces. There was a significant correlation between the injected volume and the spreading of the contrast (Spearman correlation coefficient of 0.81; P=.0001). Conclusion: The results showed a spreading of volume subject to the serratus-intercostal plane block, although not maintaining a 1:1 ratio. Doubling the volume increased the blocked segments by 31%. These findings, if corroborated in the clinical practice, would allow a more precise adjustment in the anaesthetic volume administered

Radiological study to evaluate the spreading of two volumes (10 vs. 20ml) of radiological contrast in the block of cutaneous branches of intercostal nerves in medial axillary line (BRILMA) in a porcine experimental model. / Estudio radiológico para evaluar la difusión de dos volúmenes (10 vs. 20ml) de contraste radiopaco en el bloqueo de las ramas cutáneas de los nervios intercostales en la línea medio axilar (BRILMA) en un modelo experimental porcino.

OBJECTIVE: Interfascial blocks of the thoracic wall are being developed as an alternative to central blocks in breast surgery. However, there are few studies that have evaluated the anatomical extension of the local anaesthetic. The objective of this study was to analyse, using fluoroscopy, the spreading of two volumes (10 vs. 20ml) of radiological contrast in the serratus-intercostal plane block in an experimental pig model. MATERIAL AND METHODS: Ten Large-White breed pigs were selected to have a bilateral ultrasound serratus-intercostal plane block performed, with the administering of 10ml and 20ml of iopamidol in the right and left hemithorax, respectively. The spreading of contrast was analysed by fluoroscopy. The Spearman test correlation was used to evaluate the relationship between the administered volume and radiological spreading. A value of P<.05 was considered significant. RESULTS: Twenty anaesthetic blocks were performed, being able to analyse 18 of them. The administration of 10ml of contrast was associated with a mean spreading of 2.28±0.31 (95% CI; 2.01-2.54) intercostal spaces, while the administration of 20ml showed a spreading of 3±0.25 (95% CI; 2.81-3.18) intercostal spaces. There was a significant correlation between the injected volume and the spreading of the contrast (Spearman correlation coefficient of 0.81; P=.0001). CONCLUSION: The results showed a spreading of volume subject to the serratus-intercostal plane block, although not maintaining a 1:1 ratio. Doubling the volume increased the blocked segments by 31%. These findings, if corroborated in the clinical practice, would allow a more precise adjustment in the anaesthetic volume administered.

Desarrollo de un modelo experimental para el estudio de la toxicidad cardiaca inducida por bupivacaína, implicaciones para la anestesia en Cirugía Ambulatoria / Development of an experimental model for the study of bupivacaine induced cardiotoxicity, implications for anesthesia in Ambulatory Surger

Objetivo: Recientemente existe un renovado interés por las técnicas locorregionales, asistiendo a una gran demanda tanto por los pacientes como por los equipos quirúrgicos, especialmente en la cirugía ambulatoria. La descripción de casos clínicos graves asociados a intoxicación por bupivacaína es un evento infrecuente, sin embargo, para mejorar nuestro conocimiento y prevenir la toxicidad de los anestésicos locales es necesario el desarrollo de modelos animales. Los efectos adversos cursan con alteraciones electrocardiográficas relacionadas especialmente con la conducción ventricular y con prolongación del intervalo QRS. Poder detectar una intoxicación grave por anestésicos locales antes de que ocurra un colapso cardiovascular tendría importantes consideraciones clínicas. Nuestro objetivo fue desarrollar un modelo no letal de intoxicación aguda por bupivacaína y correlacionar los niveles del fármaco con el complejo QRS como marcador instantáneo de una intoxicación grave por anestésicos locales. Material y métodos: Se estudiaron 8 cerdos large-White premedicados con ketamina, 20 mg/kg, y anestesiados con tiopental sódico (19 ± 8 mg/kg-1) como inductor y sevoflurano 1 CAM (2,6 %) para el mantenimiento anestésico. Se canalizaron la arteria y vena femoral para la monitorización invasiva, determinaciones analíticas y de niveles de bupivacaína. Al finalizar la instrumentalización, se administró bupivacaína en dosis de 4 mg/kg-1. Se realizaron determinaciones analíticas antes y al 1, 5, 10 y 30 minutos de administración del fármaco. Se evaluó la correlación entre los niveles de bupivacaína en sangre y el intervalo QRS. Se consideró significativo una p < 0,05. Análisis estadístico: Test de correlación de Spearman. Resultados: Ningún animal falleció como resultado de la experiencia. El porcentaje medio de aumento del QRS fue de 185 ± 60 ms. Hubo una correlación estadísticamente significativa entre la duración del intervalo QRS y los niveles plasmáticos de bupivacaína, coeficiente de correlación de Spearman: 0,80; p < 0,0001. Conclusión: Nuestro modelo ha permitido el estudio de uno de los aspectos más relevantes de toxicidad de la bupivacaína. El ensanchamiento del intervalo QRS se ha relacionado positivamente con los niveles de bupivacaína. La modificación instantánea de este parámetro puede ser un marcador clínico instantáneo de gran utilidad en la práctica clínica diaria

Objective: Recently there has been an extraordinary advance in the techniques of regional anaesthesia, assisting to a great demand from the patients and the surgical team especially in day surgery. Reports of serious cardiac bupivacaine intoxication are fortunately unusual, however in order to improve our knowledge and prevention of local anaesthetic toxicity the development of animal models is needed. The adverse event comes along with important electrocardiographic alterations, especially those related to ventricular conduction such as the QRS interval widening. Detecting a severe intoxication with local anaesthetic before a cardiovascular collapse takes place involves important clinical considerations. We aimed to develop a non-lethal steady model of bupivacaine intoxication and correlate bupivacaine plasma levels with the QRS complex duration as an instantaneous marker of severe local anaesthetic intoxication. Material and methods: Eight mini-pigs were premedicated with ketamine and anesthetized with intravenous sodium thiopental 5 mg/kg. The anesthetic maintenance was performed with sevoflurane 1 CAM (2.6 %). Femoral artery and vein were canalized for invasive monitoring, analytical blood gas samples and bupivacaine levels determinations. After instrumentation and motorization, a bupivacaine bolus of 4 mg/kg-1 was administered. Electrocardiographic parameters were recorded and blood samples were taken before and 1, 5, 10 and 30 min after the drug administration. We correlated venous plasma concentration with the QRS widening observed. Statistical: Spearman rank correlation coefficient. A P-value < 0.05 was considered statistically significant. Results: No animal died as a result of the experience and hemodynamic data and blood gas analysis were maintained at physiological range. The mean maximal percent increase in QRS interval was 185 ± 60 ms. There was a statistically significant positive correlation between the QRS interval and bupivacaine plasmatic levels. (Correlation coefficient of r = 0,80 (p < 0,0001). Conclusions: This porcine model of bupivacaine intoxication has been steady, obtaining important electrocardiographic modifications and keeping alive all animals. The relevant QRS interval widening was positively correlated with bupivacaine plasmatic levels. The instantaneous modification of this electrocardiographic parameter could be a useful clinical marker of serious bupivacaine intoxication in a daily basis

Un sistema organizado de atención al ictus evita diferencias en la evolución de los pacientes en relación con el momento de su ingreso en una unidad de ictus / A stroke care management system prevents outcome differences related to time of stroke unit admission

Introducción: Existe evidencia de que el ingreso de pacientes con ictus en diferentes periodos laborales influye en su evolución. Analizamos la evolución de los pacientes con relación al momento del ingreso en una unidad de ictus. Métodos: Estudio retrospectivo. Se agrupó a los pacientes considerando los siguientes periodos: a) día de la semana, b) periodo del año y c) turno de trabajo. Analizamos características demográficas, tipo y gravedad del ictus y porcentaje de trombólisis. Determinamos la evolución precoz considerando: la National Institute of Heath Stroke Scale (NIHSS), complicaciones neurológicas (CN) y mortalidad hospitalaria, y situación funcional (SF) a 3 meses mediante la escala modificada de Rankin. Resultados: Se incluyó a 1.250 pacientes. Las CN fueron más frecuentes durante el fin de semana que en los días laborales, sin influir en la mortalidad hospitalaria. Respecto a la SF a 3 meses, el 67,0% de pacientes ingresados en días laborales vs. 60,7% durante el fin de semana (p = 0,096), el 65,5% de los pacientes ingresados durante los meses académicos vs. 63,5% durante las vacaciones de verano (p = 0,803) eran independientes. No identificamos diferencias significativas en la mortalidad a 3 meses según el día o periodo del año; sin embargo, para la variable turno de trabajo, el 13,2% de los pacientes ingresados durante la mañana, el 11,5% por la tarde y el 6,0% durante el turno de noche fallecieron (p = 0,017). Observamos una tendencia a realizar más fibrinólisis en días laborables, turno de la mañana y meses académicos. Conclusiones: El momento del ingreso en la unidad de ictus no influyó en la evolución precoz ni en la situación de independencia a 3 meses

Introduction: Evidence supports that admitting patients with stroke during different hospital work periods is related to distinct outcomes. We aimed to analyse outcomes in patients according to the period and time of admission to the stroke unit. Methods: Retrospective study. For purposes of data analysis, patients were grouped according to the following time periods: a) day of the week, b) period of the year, c) shift. We analysed demographic characteristics, stroke type and severity, and the percentage undergoing thrombolysis in each group. The measures used to evaluate early outcomes were the National Institutes of Health Stroke Scale (NIHSS), neurological complications (NC), and in-hospital mortality. Functional outcome at 3 months was determined using the modified Rankin scale. Results: The stroke unit admitted 1250 patients. We found NC to be slightly more frequent for weekend admissions than for weekday admissions, but this trend does not seem to have influenced in-hospital mortality. Regarding functional outcome at 3 months, 67.0% of weekday vs. 60.7% of weekend admissions were independent (P=.096), as were 65.5% of patients admitted during the academic months vs. 63.5% of those admitted during summer holidays (P=.803). We identified no significant differences in 3-month mortality linked to the day or period of admission; however, for the variable ‘shift’, 13.2% of the patients died during the morning shift, 11.5% during the afternoon shift, and 6.0% during the night shift (P=.017). We identified a trend toward higher rates of thrombolysis administration on weekdays, during the morning shift, and during the academic months. Conclusions: Time of admission to the stroke unit did not affect early outcomes or functional independence at 3 months

Análisis de la regresión temporal en el ensanchamiento del intervalo QRS inducido por bupivacaína con la administración de Intralipid. Estudio en un modelo experimental porcino / Analysis of the temporal regression of the QRS widening induced by bupivacaine after Intralipid administration. Study in an experimental porcine model

Objetivo: La toxicidad cardiaca inducida por la bupivacaína (B) se relaciona con el bloqueo de los canales de sodio, que se traduce por un ensanchamiento del intervalo QRS. Estudios experimentales recientes, sugieren que el Intralipid (IL) es eficaz en revertir la toxicidad cardiaca de la B. Nuestro objetivo fue analizar la evolución temporal del ensanchamiento del QRS inducido por la B con la administración de IL. Material y método: Doce cerdos fueron anestesiados con tiopental sódico, 5 mg kg−1, y sevoflurano a concentración alveolar mínima de 2,6%. Tras la instrumentalización se administró un bolo de B de 4-6 mg kg−1 con el objetivo de inducir un aumento de 150% en la duración del QRS. El grupo IL recibió 1,5 mL kg−1 de IL seguido de 0,25 mL kg min−1; el grupo control (C) recibió salino. Se registraron los parámetros electrocardiográficos tras la infusión de B y a 1, 5,10 y 30 min de la administración de Intralipid/salino. Resultados: La administración de B (4,33°æ 0,81 mg/kg en el grupo IL y 4,66°æ 1,15 mg/kg en el grupo C) indujo cambios electrocardiográficos similares en ambos grupos; el porcentaje medio de incremento máximo en el QRS fue de 184°æ 62% en el grupo IL, y de 230°æ 56% en el grupo C. El IL revirtió el ensanchamiento del QRS inducido por la B, a los 10 min de su administración el intervalo QRS disminuyó 132°æ 56% vs. 15°æ 76%, en relación al máximo incremento inducido por la B, en el grupo IL y grupo C respectivamente. Conclusión: El IL revirtió eficazmente el ensanchamiento del intervalo QRS inducido por la B. El tiempo hasta la normalización de los parámetros electrocardiográficos puede prolongarse más de 10 min. Mientras persistan los fenómenos de toxicidad cardíaca, las medidas de resucitación y monitorización deben continuarse hasta que los parámetros de conducción cardíaca se hayan restaurado de forma adecuada (AU)

Objective: The principal mechanism of cardiac toxicity of bupivacaine relates to the blockade of myocardial sodium channels, which leads to an increase in the QRS duration. Recently, experimental studies suggest that lipid emulsion is effective in reversing bupivacaine cardiac toxicity. We aimed to evaluate the temporal evolution of the QRS widening induced by bupivacaine with the administration of Intralipid. Material and methods: Twelve pigs were anesthetized with intravenous sodium thiopental 5 mg kg−1 and sevoflurane 1 MAC (2.6%). Femoral artery and vein were canalized for invasive monitoring, analysis of blood gases and determination of bupivacaine levels. After instrumentation and monitoring, a bupivacaine bolus of 4-6 mg kg−1 was administered in order to induce a 150% increase in QRS duration (defined as the toxic point). The pigs were randomized into two groups of six individuals. Intralipid group (IL) received 1.5 mL kg−1of IL over one minute, followed by an infusion of 0.25 mL kg min−1. Control group (C) received the same volume of a saline solution. The electrocardiographic parameters were recorded, and blood samples were taken after bupivacaine and 1, 5, 10 and 30 minutes after Intralipid/saline administration. Results: Bupivacaine (4.33°æ 0.81 mg/kg in IL group and 4.66°æ 1.15 mg/kg in C group) induced similar electrocardiographic changes in both groups; mean maximal percent increase in QRS interval was 184°æ 62% in IL group, and 230°æ 56% in control group (NS). Lipid administration reversed the QRS widening previously impaired by bupivacaine. After ten minutes of the administration of IL, the mean QRS interval decreased to 132°æ 56% vs. 15°æ 76% relative to the maximum widening induced by bupivacaine, in IL and C group, respectively. Conclusion: Intralipid reversed the lengthening of QRS interval induced by the injection of bupivacaine. Time to normalization of electrocardiographic parameters can last more than 10 minutes. While the phenomena of cardiac toxicity persist, resuscitation measures and adequate monitoring should be continued until adequate heart conduction parameters are restored (AU)

Association between subclinical carotid atherosclerosis, hyperhomocysteinaemia and mild cognitive impairment.

OBJECTIVE: Evidence suggests that intima-media thickness (IMT) and plasma homocysteine (Hcy) levels are associated with one another, and both appear to be related to cognitive dysfunction. However, no connection between both factors taken together and mild cognitive impairment (MCI) has been established. This study analysed potential relationships between IMT, Hcy and MCI. METHODS: We included 105 patients with MCI and 76 controls with no history of vascular disease. All participants underwent laboratory analyses, a carotid ultrasound, and clinical and neuropsychological assessment. We used the Mantel-Haenszel test (MHT), ANCOVA and multiple linear regression models (MLRM) to examine any associations between IMT, Hcy and cognitive state. RESULTS: The MHT revealed a significant association between IMT and risk of MCI (z = 4.285, P < 0.0001). The OR for the upper quartile vs the lower quartile was 5.12 (95% CI: 2.12-12.36). MHT also showed a clear association between Hcy levels and risk of MCI (z = 3.01, P = 0.003). OR for the upper vs the lower quartile was 3.39 (95% CI: 1.41-8.12). Additionally, we found a correlation between IMT and Hcy (r = 0.162, P = 0.032). CONCLUSIONS: Our results suggest that there is a connection between IMT, Hcy levels and presence of amnestic MCI in a population with no history of clinically manifest atherosclerosis. Furthermore, there is also a connection between the IMT and Hcy levels themselves.

Analysis of the temporal regression of the QRS widening induced by bupivacaine after Intralipid administration. Study in an experimental porcine model.

OBJECTIVE: The principal mechanism of cardiac toxicity of bupivacaine relates to the blockade of myocardial sodium channels, which leads to an increase in the QRS duration. Recently, experimental studies suggest that lipid emulsion is effective in reversing bupivacaine cardiac toxicity. We aimed to evaluate the temporal evolution of the QRS widening induced by bupivacaine with the administration of Intralipid. MATERIAL AND METHODS: Twelve pigs were anesthetized with intravenous sodium thiopental 5mg kg(-1) and sevoflurane 1 MAC (2.6%). Femoral artery and vein were canalized for invasive monitoring, analysis of blood gases and determination of bupivacaine levels. After instrumentation and monitoring, a bupivacaine bolus of 4-6 mg kg(-1) was administered in order to induce a 150% increase in QRS duration (defined as the toxic point). The pigs were randomized into two groups of six individuals. Intralipid group (IL) received 1.5 mL kg(-1)of IL over one minute, followed by an infusion of 0.25 mL kg min(-1). Control group (C) received the same volume of a saline solution. The electrocardiographic parameters were recorded, and blood samples were taken after bupivacaine and 1, 5, 10 and 30 minutes after Intralipid/saline administration. RESULTS: Bupivacaine (4.33±0.81 mg/kg in IL group and 4.66±1.15 mg/kg in C group) induced similar electrocardiographic changes in both groups; mean maximal percent increase in QRS interval was 184±62% in IL group, and 230±56% in control group (NS). Lipid administration reversed the QRS widening previously impaired by bupivacaine. After ten minutes of the administration of IL, the mean QRS interval decreased to 132±56% vs. 15±76% relative to the maximum widening induced by bupivacaine, in IL and C group, respectively. CONCLUSION: Intralipid reversed the lengthening of QRS interval induced by the injection of bupivacaine. Time to normalization of electrocardiographic parameters can last more than 10 minutes. While the phenomena of cardiac toxicity persist, resuscitation measures and adequate monitoring should be continued until adequate heart conduction parameters are restored.

A stroke care management system prevents outcome differences related to time of stroke unit admission.

INTRODUCTION: Evidence supports that admitting patients with stroke during different hospital work periods is related to distinct outcomes. We aimed to analyse outcomes in patients according to the period and time of admission to the stroke unit. METHODS: Retrospective study. For purposes of data analysis, patients were grouped according to the following time periods: a) day of the week, b) period of the year, c) shift. We analysed demographic characteristics, stroke type and severity, and the percentage undergoing thrombolysis in each group. The measures used to evaluate early outcomes were the National Institutes of Health Stroke Scale (NIHSS), neurological complications (NC), and in-hospital mortality. Functional outcome at 3 months was determined using the modified Rankin scale. RESULTS: The stroke unit admitted 1250 patients. We found NC to be slightly more frequent for weekend admissions than for weekday admissions, but this trend does not seem to have influenced in-hospital mortality. Regarding functional outcome at 3 months, 67.0% of weekday vs. 60.7% of weekend admissions were independent (P=.096), as were 65.5% of patients admitted during the academic months vs. 63.5% of those admitted during summer holidays (P=.803). We identified no significant differences in 3-month mortality linked to the day or period of admission; however, for the variable 'shift', 13.2% of the patients died during the morning shift, 11.5% during the afternoon shift, and 6.0% during the night shift (P=.017). We identified a trend toward higher rates of thrombolysis administration on weekdays, during the morning shift, and during the academic months. CONCLUSIONS: Time of admission to the stroke unit did not affect early outcomes or functional independence at 3 months.

[The impact of neurological and medical complications on the mortality and functional situation of acute stroke patients]. / Impacto de las complicaciones neurologicas y medicas sobre la mortalidad y situacion funcional de pacientes con ictus agudo.

INTRODUCTION: Stroke patients have a high risk of presenting complications, the appearance of which can condition the prognosis of the stroke. We studied the frequency and impact of the onset of several different complications on the early and mid-term prognosis of these patients. PATIENTS AND METHODS: We conducted an observation-based study of the patients admitted to a stroke unit. The complications that occurred while hospitalised were recorded, a distinction being drawn between neurological and medical complications. The study examined their influence, according to the subtype of stroke, on intra-hospital mortality and that at 90 days, as well as on the functional situation at 90 days, by analysing the clinical factors that are predictive for the appearance of complications. RESULTS: The sample consisted of 847 patients. Altogether, 29.5% of the patients presented complications, which were more frequent in haemorrhagic stroke (50.5% versus 26.6%; p < 0.0001). The most usual complications were of a neurological nature (21%). For both subtypes, the presence of complications was associated with a higher rate of mortality both in hospital (2.1% versus 12.6%; p < 0.0001) and at 90 days (5.7% versus 29.6%; p < 0.0001), and a lower probability of independence at 90 days (72.9% versus 30.4%; p < 0.0001). The severity of the stroke on admission revealed itself as the most powerful predictor of the onset of any type of complication. CONCLUSIONS: The appearance of complications during the acute phase of the stroke has an adverse influence on mortality and on the functional prognosis. The identification of predictive factors could reduce the impact upon the progress of acute stroke patients.

TITLE: Impacto de las complicaciones neurologicas y medicas sobre la mortalidad y situacion funcional de pacientes con ictus agudo.Introduccion. Los pacientes con ictus presentan un elevado riesgo de presentar complicaciones. Su aparicion puede condicionar el pronostico del ictus. Estudiamos la frecuencia y el impacto de la aparicion de diversas complicaciones en el pronostico precoz y a medio plazo en estos pacientes. Pacientes y metodos. Estudio observacional de los pacientes ingresados en una unidad de ictus. Se registraron las complicaciones durante su estancia, distinguiendose entre complicaciones neurologicas y medicas. Se estudio la influencia de estas segun subtipo de ictus en la mortalidad intrahospitalaria y a los 90 dias, y en la situacion funcional a los 90 dias, analizandose los factores clinicos predictores para la aparicion de complicaciones. Resultados. Muestra de 847 pacientes. Un 29,5% de los pacientes presento complicaciones, que fueron mas frecuentes en el ictus hemorragico (50,5% frente a 26,6%; p < 0,0001). Las complicaciones mas habituales fueron las neurologicas (21%). Para ambos subtipos, la presencia de complicaciones se asocio a mayor mortalidad intrahospitalaria (2,1% frente a 12,6%; p < 0,0001) y a 90 dias (5,7% frente a 29,6%; p < 0,0001), y menor probabilidad de independencia a 90 dias (72,9% frente a 30,4%; p < 0,0001). La gravedad del ictus al ingreso se mostro como el predictor mas potente en la aparicion de cualquier tipo de complicacion. Conclusiones. La aparicion de complicaciones durante la fase aguda del ictus influye de forma adversa en la mortalidad y en el pronostico funcional. La identificacion de factores predictores podria disminuir el impacto sobre la evolucion del paciente con un ictus agudo.

Comparison of gas exchange after lung resection with a Boussignac CPAP or Venturi mask.

BACKGROUND: Postoperative continuous positive airway pressure (CPAP) can improve lung function. The aim of our study was to assess the efficacy of prophylactic CPAP on the Pa(O2)/FI(O2) ratio measured the day after surgery in patients undergoing lung resection surgery (LRS). METHODS: The study population comprised 110 patients undergoing LRS. On arrival in the postanaesthesia care unit (PACU), patients were randomized to receive CPAP at 5-7 cm H2O during the first 6 h after surgery (CPAP group) or supplemental oxygen through a Venturi mask (Venturi group). The Pa(O2)/FI(O2) ratio was measured on arrival in the PACU, 7 h after admission, and the day after surgery. The Pa(O2)/FI(O2) ratio is the primary endpoint of our study. We also analysed the chest radiograph and assessed the postoperative course. We then analysed the impact of ventilatory management in the PACU depending on the respiratory risk of the patient. RESULTS: Baseline characteristics were similar in both groups. Patients who received CPAP had significantly higher Pa(O2)/FI(O2) at 24 h after surgery compared with patients managed conventionally (Venturi group) (48.6±14 vs 42.3±12, P=0.031), but there were no differences at 7 h. On subgroup analysis, we found that the benefits of CPAP were greater in higher risk patients. The incidence of postoperative pulmonary complications and stay in the PACU and hospital were similar in both groups. CONCLUSIONS: In patients undergoing LRS, prophylactic CPAP during the first 6 h after surgery with a pressure of 5-7 cm H2O improved the Pa(O2)/FI(O2) ratio at 24 h. This effect was more evident in patients with increased risk of postoperative pulmonary complications.

Functional outcome of stroke and the cumulative experience of a stroke unit.

OBJECTIVE: Patients with acute stroke are more likely to survive and achieve independence if they are treated in a stroke unit. Available information in our setting is scarce. We analyse the outcomes of our patients on the basis of cumulative experience in a stroke unit. PATIENTS AND METHODS: A retrospective cohort study of patients admitted to a stroke unit. We differentiate between two groups according to the year of admission: group A (July 2007-December 2009) and group B (January 2010-December 2011), analysing early outcome based on the score on the National Institute of Health stroke scale and mortality at discharge, and medium-term outcome in terms of mortality and functional status according to the modified Rankin scale at three months. RESULTS: A total 1070 patients were included. There were no differences between groups with respect to favourable outcome (68.3% vs 63.9), hospital mortality (5.1% vs 6.6%), or 90-day mortality (12.8% vs 13.1%). The percentage of patients who were independent at 90 days was greater in group B (56.3% vs 65.5%, P=.03). In the multivariate analysis adjusted for stroke subtype and fibrinolytic therapy, the association between patient independence and admission period remained present. CONCLUSIONS: The probability of functional independence in our patients increased alongside accumulated experience in our stroke unit with no differences in mortality.

Predictores de la satisfacción de los pacientes con la alimentación de un hospital público de Madrid / Predictors of patient satisfaction with the food services in a public hospital in Madrid

Objetivo. Conocer el nivel de satisfacción de los pacientes con la alimentación recibida durante su ingreso y qué factores la predicen. Material y métodos. Estudio transversal realizado en el Hospital Clínico San Carlos entre mayo y septiembre de 2010 mediante una encuesta autocumplimentada tras el alta hospitalaria tanto en pacientes con dieta basal como terapéutica. Se recogieron variables sociodemográficas, satisfacción global con la alimentación y con diferentes aspectos y tipos de alimentos. Se realizó un análisis descriptivo y multivariable, siendo la variable dependiente la satisfacción global mediante regresión logística binaria. Resultados. Se obtuvieron 549 encuestas (tasa de respuesta del 29%), de las cuales el 60,7% habían recibido dieta terapéutica. La edad mediana fue de 68 años y el 55,4% eran hombres. El 75% manifestaron estar satisfechos o muy satisfechos. Las variables que influyeron de forma significativa en la satisfacción con la alimentación fueron la condimentación, la temperatura, y la satisfacción con los pescados y sopas/cremas. Conclusiones. A pesar de un elevado nivel de satisfacción con la alimentación existen oportunidades de mejora. Se han identificado algunos factores sobre los cuales podría ser más rentable actuar(AU)

Objective. To describe patients satisfaction with the food services during hospitalisation, and to determine the predictors. Methodology. A cross-sectional study was conducted in the “Clínico San Carlos” Hospital, between May and September 2010. A self-completion questionnaire was given to patients with both regular and therapeutic diets after their hospital discharge. We included socio-demographic variables, overall satisfaction, and satisfaction regarding different aspects and types of food. Descriptive and multivariable analyses were performed, with the overall satisfaction with food as the dependent variable using binary logistic regression. Results. A total of 549 questionnaires were returned (rate 29%), of which 60.7% received a therapeutic diet. 55.4% were men, and the median age was 68 years. Three-quarters (75%) were satisfied or very satisfied. Statistically significant variables associated with patient satisfaction with the food services received were the meal's taste and temperature, as well as being satisfied with the fish and soups on the menu. Conclusions. Despite the high level of satisfaction with food services, there is scope for improvement. We have identified some of the aspects on which action would be more beneficial(AU)

[Predictors of patient satisfaction with the food services in a public hospital in Madrid]. / Predictores de la satisfacción de los pacientes con la alimentación de un hospital público de Madrid.

OBJECTIVE: To describe patients satisfaction with the food services during hospitalisation, and to determine the predictors. METHODOLOGY: A cross-sectional study was conducted in the "Clínico San Carlos" Hospital, between May and September 2010. A self-completion questionnaire was given to patients with both regular and therapeutic diets after their hospital discharge. We included socio-demographic variables, overall satisfaction, and satisfaction regarding different aspects and types of food. Descriptive and multivariable analyses were performed, with the overall satisfaction with food as the dependent variable using binary logistic regression. RESULTS: A total of 549 questionnaires were returned (rate 29%), of which 60.7% received a therapeutic diet. 55.4% were men, and the median age was 68 years. Three-quarters (75%) were satisfied or very satisfied. Statistically significant variables associated with patient satisfaction with the food services received were the meal's taste and temperature, as well as being satisfied with the fish and soups on the menu. CONCLUSIONS: Despite the high level of satisfaction with food services, there is scope for improvement. We have identified some of the aspects on which action would be more beneficial.

Clinical and neuroradiological signs in adults with type 1 neurofibromatosis.

INTRODUCTION: Type 1 neurofibromatosis is the most common neurocutaneous syndrome. Most published case series study the paediatric population. MATERIAL AND METHODS: Cross-sectional study of cases of type 1 neurofibromatosis from neurology departments that were recorded in a database. We analysed the different clinical variables providing the diagnosis as well as demographic and neuroradiological variables. RESULTS: We found a total of 31 patients with type 1 neurofibromatosis. The mean age was 28.9 years and 58.4% were women. Subjects with unidentified bright objects (UBOs) were younger than those without them (22.45±8.22 years vs. 32.5±10.64; P=.011). In contrast, subjects with neurofibromas were older than those without them (30.56±10.68 years vs. 18.25±4.34; P=.032). No sex differences were found in the presentation of clinical or radiological variables. Seven patients (22.6%) had tumours; 3 were optic pathway gliomas (1 bilateral), 3 were plexiform neurofibromas, and 1 was a pilocytic astrocytoma in the brainstem. CONCLUSIONS: Patients with type 1 neurofibromatosis presented both peripheral neurofibromas and tumorous lesions of the central nervous system. Subjects with neurofibromas were older than those who did not present them, while subjects with UBOs were younger than those without such lesions.

["CLAPSEN", a global approach to the rehabilitation of severe childhood malnutrition in Bolivia]. / Le <>, une démarche globale pour la réhabilitation nutritionnelle de l'enfant gravement mal nourri en Bolivie.

The "CLAPSEN" approach was developed at the Hospital Materno Infantil German Urquidi in Cochabamba, to provide a global response for the study and treatment of childhood malnutrition. "CLAPSEN" is short for Clinical, Laboratory, Anthropometry, Psychology, Sociology, Nursing (Enfermera in Spanish) and Nutritional care. Most of the malnourished children admitted to Cochabamba Hospital are from poor families, more than three quarters of whom have only recently arrived in the city. Acute malnutrition is just one of the manifestations of a generally unfavorable environment. Malnutrition should not be considered as a simple deficiency in energy, protein or micronutrients, but rather as a multi-deficiency syndrome, also involving a lack of basic health and social care. This study demonstrates that malnourished children display a considerable degree of psychological retardation and of immune system depression. After five weeks of rehabilitation, the children were considered to have recuperated physically, as assessed by anthropometry, but not psychologically, as assessed by the adapted Dewer Score, or immunologically, as shown by the size of the thymus or the extent of maturation of lymphocytes. This strategy was not designed as a long-term approach for treating malnutrition, but rather as a research project to characterize the children arriving at the hospital, to determine the reasons for their malnutrition and to identify strategies that could be implemented earlier by health centers of social services, to prevent deterioration in the condition of these children to severe malnutrition requiring hospital admission. We believe that, in this Latin American context, in which the rate of acute malnutrition is low, the hospital should continue to be involved in the treatment of severely malnourished children with associated diseases. The child's stay in hospital should be short and once the child has recovered clinically, he should be sent home. In light of the observed levels of social deprivation, psychosocial and immune deficits, there appears to be a need for continued support for the family, to ensure the full recovery of the child and to prevent relapses.

A rare case of congenital heart disease

Congenital anomalies of the heart are now attracting the attention of the pediatrician, cardiologist,heart surgeon and pathologist alike. Various reports have been published concerning congenital anomalies of the heart and great vessels (1-8, 11-13, 15-19). Recently, we encountered a rare type of congenital heart anomaly which involved the chordae tendinae and papillary muscles in both ventricles and the tricuspid valve. A review of the literature available to us yielded only a report by Luch (10) of 2 deaths with congenital malformation of the tricuspid valve. (Author)