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INTRODUCTION: Fibrinolysis in stroke should be carried out as soon as possible, but delays occur for various reasons. In the first 17 ischemic infarcts treated in our center we confirmed a tendency to exhaust the therapeutic window. We look now at whether warnings against this tendency, without other logistical or organizational modifications, have had an impact on delays. PATIENTS AND METHODS: Neurologists were encouraged to avoid procrastination. When we reached 51 treated patients, we compared features and delay times between the first 17 (February, 2002 to June, 2004) and the 17 most recent cases (October, 2005 to April, 2006). Non-parametric tests were used (significant if p < 0.05). RESULTS: Both groups were similar clinically and demographically. The onset-arrival time lengthened (46 min vs. 75 min; p = 0.01) and scattered. The CT-treatment time halved (57 min vs. 30 min; p = 0.001), with consequent shortening of the 'door-to-needle' period (121 min vs. 90 min; p = 0.002). The arrival-CT time had remained constant (50 min vs. 53 min; p = 0.9), thus the total delay from onset did not change significantly (165 min vs. 170 min; p = 0.7), and the inverse linear correlation between the onset-CT time and the CT-treatment time weakened. CONCLUSIONS: Warnings against procrastination appear to be important in terms of shortening the delays. The time used for clinical-radiologic evaluation (arrival through CT)--about which there had been no action taken--had not been modified, but the time employed in the decision to treat (CT-treatment) and the 'door-to-needle' time had decreased appreciably. This effective compensatory reduction permitted treatment of late-arriving patients, such that although the overall time from onset to treatment apparently was not modified, the actual treatment rate increased.

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Introducción. La fibrinólisis del ictus isquémico debe llevarse a cabo cuanto antes; conocer las causas de retraso permite su eventual corrección. En los primeros 17 casos que tratamos comprobamos que tendía a agotarse el período de ventana terapéutica; evaluamos si las advertencias frente a ello, sin otras modificaciones logísticas u organizativas, han tenido impacto en las demoras. Pacientes y métodos. Se estimuló la celeridad en el tratamiento. Con 51 pacientes tratados, comparamos características y tiempos de demora en los primeros 17 casos (febrero de 2002 a junio de 2004) y en los 17 más recientes (octubre de 2005 a abril de 2006), utilizando tests no paramétricos (significación si p < 0,05). Resultados. Ambos grupos son similares demográfica y clínicamente. El tiempo inicio-puerta se alargó (46 min frente a 75 min; p = 0,01) y dispersó. El tiempo entre tomografía axial computarizada (TAC) y tratamiento se redujo a la mitad (57 min frente a 30 min; p = 0,001), con el consecuente acortamiento del período ‘puerta-aguja’ (121 min frente a 90 min; p = 0,002). El tiempo puerta-TAC se mantuvo constante (50 min frente a 53 min; p = 0,9), y la demora total desde el inicio tampoco se modificó significativamente (165 min frente a 170 min; p = 0,7); la correlación lineal inversa entre tiempo de inicio-TAC y tiempo TAC-tratamiento perdió intensidad. Conclusiones. Las advertencias contra la procrastinación parecen haber sido eficaces para abreviar la toma de decisión de tratar (TAC-tratamiento) y el tiempo ‘puerta-aguja’, mientras que el tiempo utilizado en la evaluación clinicorradiológica (puerta-TAC), sobre el que no había habido actuaciones, no se modificó. Ello ha permitido realizar fibrinólisis a pacientes que llegan más tarde; así, aunque el tiempo inicio-tratamiento aparentemente no cambió, se incrementó la tasa de fibrinólisis

Introduction. Fibrinolysis in stroke should be carried out as soon as possible, but delays occur for various reasons. In the first 17 ischemic infarcts treated in our center we confirmed a tendency to exhaust the therapeutic window. We look now at whether warnings against this tendency, without other logistical or organizational modifications, have had an impact on delays. Patients and methods. Neurologists were encouraged to avoid procrastination. When we reached 51 treated patients, we compared features and delay times between the first 17 (February, 2002 to June, 2004) and the 17 most recent cases (October, 2005 to April, 2006). Non-parametric tests were used (significant if p < 0.05). Results. Both groups were similar clinically and demographically. The onset-arrival time lengthened (46 min vs. 75 min; p = 0.01) and scattered. The CTtreatment time halved (57 min vs. 30 min; p = 0.001), with consequent shortening of the ‘door-to-needle’ period (121 min vs. 90 min; p = 0.002). The arrival-CT time had remained constant (50 min vs. 53 min; p = 0.9), thus the total delay from onset did not change significantly (165 min vs. 170 min; p = 0.7), and the inverse linear correlation between the onset-CT time and the CT-treatment time weakened. Conclusions. Warnings against procrastination appear to be important in terms of shortening the delays. The time used for clinical-radiologic evaluation (arrival through CT) –about which there had been no action taken– had not been modified, but the time employed in the decision to treat (CT-treatment) and the ‘door-to-needle’ time had decreased appreciably. This effective compensatory reduction permitted treatment of late-arriving patients, such that although the overall time from onset to treatment apparently was not modified, the actual treatment rate increased

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INTRODUCTION: The effectiveness of stimulating the subthalamic nucleus (DBS-STN) in advanced Parkinson's disease (PD) largely depends on the correct placement of the electrodes. Since the sensory-motor region of the STN lies beside the internal capsule (IC), we believe that the motor effectiveness of DBS-STN could be related to the stimulation threshold in which IC signs appear (IC threshold). PATIENTS AND METHODS: An examination of 17 consecutive patients with advanced PD who had been submitted to bilateral DBS-STN (one case was unilateral) was carried out to determine the motor improvement on each side of the body (n = 33) and the energy consumption one year after surgery according to the IC threshold obtained during the programming. RESULTS: A 45% improvement was observed in the UPDRS III in off and there was a 24% reduction in the equivalent dose of levodopa with bilateral DBS-STN. When the electrodes were considered, there was a statistically significant improvement that depended on the IC threshold. Energy consumption differed significantly between electrodes with an IC threshold of 3-7 V (1.5 +/- 1.2 microW) and those with an IC threshold > 7 V (8.3 +/- 9.4 microW). CONCLUSIONS: During the stimulation phase and following the correct location of the STN, which was achieved by neurophysiological recording, the IC threshold has prognostic implications in medium-long term motor effectiveness and in the consumption of the battery in the generator.

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AIMS: The earlier r-TPA is administered in ischaemic strokes, the more effective it is. The aim of this study is to analyse the delay times in health care afforded in a consecutive series of cases that had received treatment, with a view to shortening them. PATIENTS AND METHODS: We analysed the medical records of the first patients to be treated in our centre. The paper describes several variables involving demographic and clinical factors, as well as the delay in entering the Emergency department, performing a CAT scan and especially the time elapsed between the CAT scan and starting treatment. We have examined the existence of an inappropriate correlation between delays that should be independent of one another. RESULTS: The mean age of the 17 patients treated was 68 years and they had a stroke severity score of 17 points on the NIHSS. The mean time of delay until arrival, arrival-CAT, and CAT-treatment were slightly under 1 hour each, and onset-treatment delay was 165 minutes, which is very close to the limit of the therapeutic window period. We found a strong inverse linear association between the time elapsed between onset and the CAT scan, and from the latter to the beginning of treatment (Spearman's r: -0.664, p = 0.004). CONCLUSIONS: Findings indicate that in our hospital, as in other centres in the initial phases of implementation, the therapeutic time window for intravenous thrombolysis in ischaemic stroke tends to run out. It must be highlighted that the resolve of the physician who indicates the treatment exerts a decisive effect on the delay.

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Objetivos. El r-TPA en el ictus isquémico es más eficaz cuanto antes se administra. Hemos analizado los tiempos de demora asistencial en una serie consecutiva de casos tratados con el fin de acortarlos. Pacientes y métodos. Se ha analizado el registro de los primeros pacientes tratados en nuestro centro, se han descrito las variables demográficas, clínicas y de demoras en llegada a puerta de Urgencias, realización de la TC y, especialmente, el tiempo desde la TC hasta el inicio del tratamiento. Se ha explorado la existencia de alguna correlación inapropiada entre aquellas demoras que debieran ser independientes entre sí. Resultados. Los 17 pacientes tratados tenían una mediana de edad de 68 años y de gravedad en la NIHSS de 17 puntos. Las medianas de las demoras hasta la llegada, entre la llegada y la TC, y entre la TC y el tratamiento, fueron ligeramente inferiores a una hora cada una, y la del debut hasta el tratamiento fue de 165 minutos, muy próxima al límite del período de ventana terapéutica. Se ha encontrado una fuerte asociación lineal inversa entre la demora desde el debut hasta la TC y desde ésta hasta el inicio del tratamiento (r de Spearman: 0,664, p = 0,004). Conclusiones. Los resultados apuntan a que en nuestro hospital, como en otros centros, en la fase inicial de implantación, el tiempo de ventana terapéutica para la trombólisis intravenosa en el ictus isquémico tiende a agotarse. Ponemos de manifiesto que, entre otros factores, la resolución del facultativo que indica el tratamiento influye decisivamente en la demora

Aims. The earlier r-TPA is administered in ischaemic strokes, the more effective it is. The aim of this study is to analyse the delay times in health care afforded in a consecutive series of cases that had received treatment, with a view to shortening them. Patients and methods. We analysed the medical records of the first patients to be treated in our centre. The paper describes several variables involving demographic and clinical factors, as well as the delay in entering the Emergency department, performing a CAT scan and especially the time elapsed between the CAT scan and starting treatment. We have examined the existence of an inappropriate correlation between delays that should be independent of one another. Results. The mean age of the 17 patients treated was 68 years and they had a stroke severity score of 17 points on the NIHSS. The mean time of delay until arrival, arrival-CAT, and CAT-treatment were slightly under 1 hour each, and onset-treatment delay was 165 minutes, which is very close to the limit of the therapeutic window period. We found a strong inverse linear association between the time elapsed between onset and the CAT scan, and from the latter to the beginning of treatment (Spearman’s r -0.664, p = 0.004). Conclusions. Findings indicate that in our hospital, as in other centres in the initial phases of implementation, the therapeutic time window for intravenous thrombolysis in ischaemic stroke tends to run out. It must be highlighted that the resolve of the physician who indicates the treatment exerts a decisive effect on the delay

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