Dengue importado y autóctono en España / Imported and autochthonous dengue in Spain

El dengue es, globalmente, la arbovirosis más importante. Está causado por el virus del dengue y transmitido generalmente por la picadura de mosquitos del género Aedes (Ae aegypti o Ae albopictus). En España fue inicialmente erradicado en el siglo xx, junto con el vector Aeaegypti, y en la actualidad la mayoría de los casos notificados en España son importados por viajeros procedentes de países con transmisión de dengue (dengue importado). Sin embargo, en los últimos años se han descrito casos de dengue de personas residentes en España que no habían viajado a zonas con transmisión conocida del virus (dengue autóctono), transmitidos por Aedes albopictus (el denominado mosquito tigre), presente especialmente en la cuenca mediterránea. Se requiere por lo tanto un buen conocimiento de esta enfermedad, ya que puede dar lugar a cuadros clínicos graves, de modo que pueda ser diagnosticada precozmente y manejada correctamente, disminuyendo con ello su mortalidad, así como su eventual transmisión autóctona (AU)

Dengue is globally the most important arboviral infection. It is caused by the dengue virus and it is generally transmitted by Aedes mosquitoes’ bites (Ae aegypti or Ae albopictus). In Spain it was initially eradicated in the 20th century, together with the Ae aegypti vector, and currently most of the cases reported in Spain are imported by travelers from countries with dengue transmission (imported dengue). However, in recent years, cases of dengue have been described in people residing in Spain who had not traveled to areas with known transmission (autochthonous dengue), transmitted by Aedes albopictus (the so-called tiger mosquito), present especially in the Mediterranean basin. Therefore, a good knowledge of this potentially severe disease is required, so that it can be diagnosed early, and managed correctly, thus reducing its mortality, as well as its eventual autochthonous transmission (AU)

Imported and autochthonous dengue in Spain.

Dengue is globally the most important arboviral infection. It is caused by the dengue virus and it is generally transmitted by Aedes mosquitoes' bites (Ae aegypti or Ae albopictus). In Spain it was initially eradicated in the 20th century, together with the Ae aegypti vector, and currently most of the cases reported in Spain are imported by travelers from countries with dengue transmission (imported dengue). However, in recent years, cases of dengue have been described in people residing in Spain who had not traveled to areas with known transmission (autochthonous dengue), transmitted by Aedes albopictus (the so-called tiger mosquito), present especially in the Mediterranean basin. Therefore, a good knowledge of this potentially severe disease is required, so that it can be diagnosed early, and managed correctly, thus reducing its mortality, as well as its eventual autochthonous transmission.

Real-life experience of hepatitis C treatment in a Spanish prison.

OBJECTIVE: Hepatitis C virus (HCV) infection is a major public health problem that causes multiple comorbidities. People in prisons who inject intravenous drugs are at increased risk of HCV infection, and HCV infection is 15-fold more prevalent among prisoners compared with the community. The objective of this study was to analyse the clinical and epidemiological characteristics of residents of a Spanish prison with HCV infection who received antiviral treatment. METHODS: An observational, descriptive and retrospective study was performed. All patients with HCV infection diagnosed or followed up in an Infectious Diseases attached to a penitentiary were included in this study. RESULTS: Of 81 patients analysed, sixty-nine (83.1%) patients were male. The mean age was 50.1 (SD8.8) years, and 70% of the inmates had a history of injection drug use. Coinfection with HIV was detected in 30%. In up to 25% of the sample, there were data on chronic liver disease in the degree of liver cirrhosis. The diagnosis of HCV infection had been made more than 15 years earlier in 28% of those studied. Decompensations from liver disease, hepatocellular carcinoma, or hospital admissions were exceptional. Most of the inmates with HCV accepted treatment, and approximately 94% of the patients who completed treatment achieved a sustained virological response without interactions or complications of interest. CONCLUSIONS: The availability of direct-acting antivirals and their exceptional side effects constitute an opportunity to reduce the burden of HCV infection in Spain, particularly in these high-risk populations.

Acquisition of Competencies by Medical Students in Neurological Emergency Simulation Environments Using High Fidelity Patient Simulators.

The training of medical students demands practice of skills in scenarios as close as possible to real ones that on one hand ensure acquisition of competencies, and on the other, avoid putting patients at risk. This study shows the practicality of using high definition mannequins (SimMan 3G) in scenarios of first attention in neurological emergencies so that medical students at the Faculty of Medicine of the University of Salamanca could acquire specific and transversal competencies. The repetition of activities in simulation environments significantly facilitates the acquisition of competencies by groups of students (p < 00.5). The greatest achievements refer to skills whereas the competencies that demand greater integration of knowledge seem to need more time or new sessions. This is what happens with the competencies related to the initial diagnosis, the requesting of tests and therapeutic approaches, which demand greater theoretical knowledge.

[Questionnaire on the anaesthesiology treatment of patients subjected to posterior fossa neurosurgery]. / Encuesta sobre el tratamiento anestesiológico de los pacientes sometidos a neurocirugía de fosa posterior.

OBJECTIVES: To find out, by means of a questionnaire, the procedures used by Spanish anaesthetists in peri-operative management of patients subjected to neurosurgery of the posterior cranial fossa. MATERIAL AND METHODS: A closed-question type questionnaire was sent to Anaesthesiology Departments with a Neurosurgery Department on the participation of anaesthetists in the peri-operative treatment of patients subjected posterior fossa surgery. RESULTS: The questionnaire was completed by 42 (57.5%) of the 73 national public hospitals with a Neurosurgery Department. The posterior fossa surgery was performed in the sitting position in 36 hospitals, although it was less frequently used than the lateral decubitus or prone decubitus position. There was little specific neurological monitoring, as well as little use of precordial and/or transcranial Doppler for detecting vascular air embolism. Nitrous oxide was used in less than 10% of the centres, and 15% avoided neuromuscular block when neurophysiological monitoring was used during the surgery. Cardiovascular problems were mentioned as being the most frequent in 29% of the centres, while in the post-operative period the most common complications were, cranial nerve déficit, airway oedema (23%), and post-operative vomiting (47%). CONCLUSIONS: The results obtained from the questionnaire showed that the sitting position was less used than the prone position in posterior fossa surgery, and that neurophysiological monitoring is during surgery is hardly used.

Comorbilidad, discapacidad y mortalidad en pacientes pluripatológicos con enfermedad pulmonar obstructiva crónica / Comorbidity, discapacity and mortality in patients with multiple conditions and chronic obstructive pulmonary disease

Objetivo. Estudiar la asociación entre diferentes comorbilidades y condiciones clínicas con la mortalidad en pacientes pluripatológicos (PPP) con enfermedad pulmonar obstructiva crónica (EPOC). Pacientes y métodos Estudio observacional, prospectivo y multicéntrico. Se han incluido pacientes consecutivos con EPOC y criterios de PPP. Se han recogido las variables: edad, sexo, índice de Charlson, comorbilidades, índice de Barthel, índice de Lawton-Brody, test de Pfeiffer, escala de Gijón, nivel de educación, hospitalizaciones en los últimos 3 y 12 meses y supervivencia al cabo de un año. Mediante un análisis univariante y una regresión logística se ha establecido la relación de las variables con la mortalidad. Resultados. Se han incluido 688 PPP con EPOC con edad media 77,9 años. La puntuación media (DE) en el índice de Charlson fue 3,99 (2,07). Las comorbilidades más frecuentes son insuficiencia cardiaca (59%), diabetes (48%), infarto de miocardio (29,4%), insuficiencia renal moderada (22%), enfermedad cerebrovascular (19%), hipertensión arterial (71%), anemia (62%), fibrilación auricular (34%), dislipemia (28%) y obesidad (21%). El 26% tenía dependencia para las actividades básicas de la vida diaria, el 47% precisaba de un cuidador y el 54% tenía riesgo de problema social. Al cabo de un año fallecieron 258 pacientes (37%). El índice de Charlson, la dependencia para las actividades de la vida diaria y la anemia se asocian con una mayor mortalidad y la hipertensión arterial y saber leer y escribir con menor mortalidad. Conclusiones. La comorbilidad y la discapacidad son dos factores pronósticos en los pacientes con EPOC(AU)

Aims. To determine the association between different comorbidities and other clinical conditions with mortality in patients with multiple diseases (PMD) suffering from chronic obstructive pulmonary disease (COPD). Subjects and methods. Patients with COPD and PMD criteria were included in an observational, prospective and multicentrer study. Data on age, gender, Charlson index, Barthel index, Lawton-Brody index, Pfeiffer test, sociofamilial Gijon scale, education level, hospitalizations during the previous 3 and 12 months and survival at one year were collected. The relationship between the variables and mortality were established by means of a univariate analysis and logistic regression model. Results. A total of 688 PMD with COPD and mean age of 77.9 years were included. The mean score one the Charlson index was 3.99 (2.07). The most frequent comorbidities were heart failure (59%), diabetes (48%), myocardial infarction (29%), moderate kidney failure (22%), cerebrovascular disease (19%), hypertension (71%), anemia (62%), atrial fibrillation (34%), dyslipidemia (28%) and obesity (21%). A total of 26% of patients were dependent for activities of daily living, 47% needed a caregiver and 54% were at risk of having social problems. At one year, 258 patients (37%) had died. The Charlson index, dependency for activities of daily living and anemia were associated with mortality and hypertension and capacity for reading and writing were associated with survival(AU)

[Comorbidity, discapacity and mortality in patients with multiple conditions and chronic obstructive pulmonary disease]. / Comorbilidad, discapacidad y mortalidad en pacientes pluripatológicos con enfermedad pulmonar obstructiva crónica.

AIMS: To determine the association between different comorbidities and other clinical conditions with mortality in patients with multiple diseases (PMD) suffering from chronic obstructive pulmonary disease (COPD). SUBJECTS AND METHODS: Patients with COPD and PMD criteria were included in an observational, prospective and multicentrer study. Data on age, gender, Charlson index, Barthel index, Lawton-Brody index, Pfeiffer test, sociofamilial Gijon scale, education level, hospitalizations during the previous 3 and 12 months and survival at one year were collected. The relationship between the variables and mortality were established by means of a univariate analysis and logistic regression model. RESULTS: A total of 688 PMD with COPD and mean age of 77.9 years were included. The mean score one the Charlson index was 3.99 (2.07). The most frequent comorbidities were heart failure (59%), diabetes (48%), myocardial infarction (29%), moderate kidney failure (22%), cerebrovascular disease (19%), hypertension (71%), anemia (62%), atrial fibrillation (34%), dyslipidemia (28%) and obesity (21%). A total of 26% of patients were dependent for activities of daily living, 47% needed a caregiver and 54% were at risk of having social problems. At one year, 258 patients (37%) had died. The Charlson index, dependency for activities of daily living and anemia were associated with mortality and hypertension and capacity for reading and writing were associated with survival. CONCLUSIONS: Comorbidity and discapacity are two prognostic factors in COPD patients.

An association between resistant hypertension and the null GSTM1 genotype.

Reduction in expression levels of glutathione S-transferase (GST) mu type 1 (GSTM1) in stroke-prone spontaneously hypertensive rats has recently been reported. GSTM1 genotype was evaluated in 49 patients with resistant hypertension and compared with selected patients with controlled hypertension (n=232) and healthy participants (n=110). Null GSTM1 genotype occurred more frequent in patients with resistant hypertension than those with controlled hypertension (57.1 vs 39.7%; P=0.03; RR 1.96; 95% CI 1.04-3.69) suggesting that null GSTM1 genotype may predispose to resistant hypertension.

[Vagus nerve stimulation for the treatment of refractory epilepsy. State of the art]. / Estimulación eléctrica vagal en el tratamiento de la epilepsia rebelde. Situación actual.

The vagus nerve stimulation (VNS) therapy is a new neurostimulation technique used for treating pharmacoresistant epilepsy. It can be considered an effective and safe alternative for the treatment of refractory epilepsy patients. In the present review, we describe the surgical implantation technique, its indications and results achieved until now. We will also summarize the possible mechanisms of action of VNS therapy. Finally, we will comment on the difficulties and inconveniences that did not allow this antiepileptic surgical technique to become more widely used.

Estimulación eléctrica vagal en el tratamiento de la epilepsia rebelde. Situaciónactual / Vagus nerve stimulation for the treatment of refractory epilepsy. State of the art

La estimulación intermitente vagal es una técnica de neuroestimulación de reciente incorporación en el tratamiento de pacientes con epilepsia refractaria al tratamiento farmacológico convencional. Hasta el momentopresente y, a pesar de algunos resultados dispares, se ha mostrado como una alternativa eficaz y segura en el tratamiento de estos pacientes. El presente trabajo de revisión pretende acercar la técnica quirúrgica de implantación, comentar las indicaciones y resultados obtenidos hasta la actualidad, y profundizar en los posibles mecanismos de acción de este tipo de estimulación,para finalmente realizar una aproximación crítica a la misma, intentando puntualizar cúales han sido los problemas e inconvenientes que han impedido la utilización generalizada de esta alternativa quirúrgica antiepiléptica (AU)

The vagus nerve stimulation (VNS) therapy is a new neurostimulation technique used for treating pharmacoresistant epilepsy. It can be considered an effective and safe alternative for the treatment of refractory epilepsy patients. In the present review, we describe the surgical implantation technique, its indications and results achieved until now. We will also summarize the possible mechanisms of action of VNS therapy. Finally, we will comment on the difficulties and inconvenients that did not allow this antiepileptic surgical technique to become more widely used (AU)

El internista y la diabetes mellitus / The internist and diabetes mellitus

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[Effect of combination therapy with hypothermia, magnesium and tirilazad in an experimental model of diffuse cerebral ischemia]. / Efecto de la hipotermia combinada con magnesio y tirilazad en un modelo experimental de isquemia cerebral difusa*

OBJECTIVE: To determine the grade of neuroprotection of combined treatment with moderate hypothermia, tirilazad and magnesium sulfate. Cerebral ischemia is one of the problems of great interest at present, with limited therapeutic measures. Hypothermia, one of the more efficient measures, together with neuroprotector pharmaceuticals, could be a valid alternative. DESIGN: Experimental study with a control group and two levels of application of therapeutic measures. CONTEXT: Experimental laboratory of the Medicine Faculty. PARTICIPANTS AND METHOD: Twenty-eight Wistar rats underwent global cerebral ischemia of 10 minutes duration by the combination of bilateral carotid clamping and controlled hypotension (mean arterial pressure: 45 mmHg). Three groups were used: group I, normothermia maintenance; group II, moderate hypothermia (32-33 degrees C) for 2 hours; group III, hypothermia and administration of tirilazad mesylate and magnesium sulfate during the reperfusion and two hours after ischemia. The animals were sacrificed at 7 days and, after processing the tissue, the neurons preserved in layer CA1 of the hippocampus were counted. RESULTS: There is a significantly greater neuronal preservation in group III with regard to group I (55.4 +/- 5.1 versus 38.7 +/- 8.8, p < 0.0001). If we compare groups II and III, significant differences are only obtained on the right side and in the hippocampus considered globally, favoring the group with hypothermia and drugs. When groups I and II are compared there are no significant differences. CONCLUSIONS: Association of moderate hypothermia, magnesium sulfate and tirilazad mesylate in the experimental model of transitory global ischemia used is confirmed as an effective neuroprotector measure, surpassing the degree of neuronal preservation of hypothermia alone.

[Neurohormonal blockade in patients with heart failure at discharge from hospital]. / Bloqueo neurohormonal al alta en pacientes con insuficiencia cardiaca.

With the objective to value the degree of fulfillment of the pharmacological processing in patients with heart failure was designed the study of therapeutic adherence in heart failure (ATICA). During the period of inclusion educational, social, demographic data have been obtained, personal antecedents, analytic and physical exploration of the patients. These data mentioned are the ones that are reflected in the present pilot study. The total of patients included is 554, the majority of which are women, the middle ages is advanced and they present a fraction of eyección conserved in more than the half. In the therapeutic plan only was collected information of groups with neurohormonal action and of great recognition in the processing of the heart failure. The most utilized pharmacological group are the IECA, nevertheless medicines as the espirolactona or the betablocker continue showing a worrying degree of infrautilización, although they present a greater prescription that in other series.

Bloqueo neurohormonal al alta en pacientes con insuficiencia cardiaca / Neurohormonal blockade in patients with heart failure at discharge from hospital

Con el objetivo de valorar el grado de cumplimiento del tratamiento farmacológico en pacientes con ICC se diseñó el estudio de adherencia terapéutica en insuficiencia cardiaca (ATICA). Durante el periodo de inclusión se han obtenido datos demográficos, sociales, educacionales, antecedentes personales, exploración física y analítica de los pacientes. Estos datos mencionados son los que se reflejan en el presente estudio piloto. El total de pacientes incluidos es de 586, la mayoría de los cuales son mujeres, la edad media es avanzada y presentan una fracción de eyección conservada en más de la mitad. Respecto al esquema terapéutico únicamente se recogió información de grupos con acción neurohormonal y de reconocimiento en el tratamiento de la ICC. El grupo farmacológico más utilizado son los IECA, sin embargo fármacos como la espirolactona o los BB, siguen mostrando un grado de infrautilización preocupante, aunque presentan una prescripción mayor que en otras series

With the objective to value the degree of fulfillment of the pharmacological processing in patients with heart failure was designed the study of therapeutic adherence in heart failure (ATICA). During the period of inclusion educational, social, demographic data have been obtained, personal antecedents, analytic and physical exploration of the patients. These data mentioned are the ones that are reflected in the present pilot study. The total of patients included is 554, the majority of which are women, the middle ages is advanced and they present a fraction of eyección conserved in more than the half. In the therapeutic plan only was collected information of groups with neurohormonal action and of great recognition in the processing of the heart failure. The most utilized pharmacological group are the IECA, nevertheless medicines as the espirolactona or the betablocker continue showing a worrying degree of infrautilización, although they present a greater prescription that in other series

Síndrome de fatiga crónica: un síndrome en busca de definición / Chronic fatigue syndrome: a syndrome in search of definition

No disponible

Cost-effectiveness of three combinations of antiemetics in the prevention of postoperative nausea and vomiting.

BACKGROUND: This study compares the cost-effectiveness of three combinations of antiemetics in the prevention of postoperative nausea and vomiting (PONV). METHODS: We conducted a prospective, double-blind study. Ninety ASA I-II females, 18-65 yr, undergoing general anaesthesia for major gynaecological surgery, with standardized postoperative analgesia (intrathecal 0.2 mg plus i.v. PCA morphine), were randomly assigned to receive: ondansetron 4 mg plus droperidol 1.25 mg after induction and droperidol 1.25 mg 12 h later (Group 1); dexamethasone 8 mg plus droperidol 1.25 mg after induction and droperidol 1.25 mg 12 h later (Group 2); ondansetron 4 mg plus dexamethasone 8 mg after induction and placebo 12 h later (Group 3). A decision analysis tree was used to divide each group into nine mutually exclusive subgroups, depending on the incidence of PONV, need for rescue therapy, side effects and their treatment. Direct cost and probabilities were calculated for each subgroup, then a cost-effectiveness analysis was conducted from the hospital point of view. RESULTS: Groups 1 and 3 were more effective (80 and 70%) than Group 2 (40%, P=0.004) in preventing PONV but also more expensive. Compared with Group 2, the incremental cost per extra patient without PONV was euro;6.99 (95% CI, -1.26 to 36.57) for Group 1 and euro;13.55 (95% CI, 0.89-132.90) for Group 3. CONCLUSION: Ondansetron+droperidol is cheaper and at least as effective as ondansetron+ dexamethasone, and it is more effective than dexamethasone+droperidol with a reasonable extra cost.

A comparison of three antiemetic combinations for the prevention of postoperative nausea and vomiting.

UNLABELLED: In this study we compared the efficacy and safety of three antiemetic combinations in the prevention of postoperative nausea and vomiting (PONV). Ninety ASA status I-II women, aged 18-65 yr, undergoing general anesthesia for major gynecological surgery, were included in a prospective, randomized, double-blinded study. A standardized anesthetic technique and postoperative analgesia (intrathecal morphine plus IV patient-controlled analgesia (PCA) with morphine) were used in all patients. Patients were randomly assigned to receive ondansetron 4 mg plus droperidol 1.25 mg after the induction of anesthesia and droperidol 1.25 mg 12 h later (Group 1, n = 30), dexamethasone 8 mg plus droperidol 1.25 mg after the induction of anesthesia and droperidol 1.25 mg 12 h later (Group 2, n = 30), or ondansetron 4 mg plus dexamethasone 8 mg after the induction of anesthesia and placebo 12 h later (Group 3, n = 30). A complete response, defined as no PONV in 48 h, occurred in 80% of patients in Group 1, 70% in Group 3, and 40% in Group 2 (P = 0.004 versus Groups 1 and 3). The incidences of side effects and other variables that could modify the incidence of PONV were similar among groups. In conclusion, ondansetron, in combination with droperidol or dexamethasone, is more effective than dexamethasone in combination with droperidol in women undergoing general anesthesia for major gynecological surgery with intrathecal morphine plus IV PCA with morphine for postoperative analgesia. IMPLICATIONS: The combination of ondansetron plus dexamethasone or droperidol was significantly better than the combination of dexamethasone plus droperidol in the prophylaxis of postoperative nausea and vomiting in women undergoing general anesthesia for major gynecological surgery, with intrathecal and IV morphine (patient-controlled analgesia) for management of postoperative pain.

[Efficacy of 0.1 mg of subarachnoid morphine combined with bupivacaine on postoperative analgesia in total hip arthroplasty]. / Eficacia de 0,1 mg de morfina subaracnoidea asociada a la bupivacaína sobre la analgesia postoperatoria en la artroplastia total de cadera.

OBJECTIVES: To analyze the analgesic efficacy, safety and side effects of subarachnoid morphine (0.1 mg) with bupivacaine in patients undergoing total hip arthroplasty. PATIENTS AND METHODS: Thirty patients scheduled for total hip replacement under spinal anesthesia with bupivacaine were randomly assigned to two groups according to whether local anesthetic with 0.1 mg subarachnoid morphine was also provided or not (group M [n = 15] and group S n = 15[, respectively). Top-up analgesia with morphine was available through a patient-controlled device. Postoperative pain was assessed on a visual analogue scale (VAS) and consumption of intravenous morphine in the first 48 hours after surgery was recorded. RESULTS: VAS scores (mean +/- SD) were significantly lower in the first six hours in group M, but no differences between the two groups were observed thereafter. Total consumption of morphine at 48 hours was much lower in group M (6.80 +/- 7.74 mg) than in group S (31.38 +/- 13.17 mg). The incidence of nausea was high in both groups (46%). Slight pruritus affected 26.6% of patients in group M. Urinary retention necessitating temporary placement of a catheter was observed only in group M, where the incidence was 35.7%. No cases of respiratory depression occurred. Drowsiness was observed in 26.6% of patients in group S in comparison with 6.6% in group M. CONCLUSIONS: Combining 0.1 mg morphine and bupivacaine for total spinal anesthesia during hip arthroplasty significantly decreased the consumption of intravenous morphine during the first 48 hours after surgery. No respiratory depression occurred and the only side effects were urinary retention and mild pruritus and drowsiness.