820 research outputs found
MODELO DE FUENTES: PROPUESTA PARA LA JERARQUIZACIÓN, INTEGRACIÓN Y REPRESENTACIÓN DE LAS FUENTES DE INFORMACIÓN EN LA GENERACIÓN DE MODELOS VIRTUALES DE EDIFICIOS HISTÓRICOS
Different sources of information are required to build up a virtual model of a partially or totally disappeared building. These sources have different characteristics and properties, which make it necessary to use information selection criteria as well as a procedure to preserving the origin of the data. In this paper we propose a solution for both questions.Para la generación de un modelo virtual de un edificio desaparecido —total o parcialmente— es habitual recurrir a varias fuentes de información. Estas fuentes poseen diferentes características y propiedades, por lo que es necesario aplicar un criterio de selección, así como un procedimiento para señalar el origen de los datos. En este artículo proponemos una solución a ambas cuestiones
Geometric documentation of the monastery hostel and archdeacon’s bedchamber. Study and integration of the existent cartography. Monastery of la Estrella (San Asensio, La Rioja, Spain)
[ES] La parte documentada consta de un edificio independiente (que no exento) que corresponde a la antigua hospedería, que tiene unas dimensiones de 25x15 metros y está formado por ocho espacios abovedados. En la fachada exterior Norte tiene adosada la denominada «Fuente de Felipe II». Por otro lado, los «aposentos del arcediano» consisten en una entrada al claustro por la conocida como «Puerta de los Caballeros» que es un espacio abovedado de 6 x 6 metros que da también acceso a una estancia rectangular de 12 x 6 metros que actualmente se utiliza como capilla. Este espacio cuenta también con varias vidrieras que también se han documentado.La documentación se ha realizado mediante estación total topográfica con medida directa sin prima obteniendo así un modelo volumétrico vectorial. Para las vidrieras se ha utilizado fotografía rectificada sobre la que se han digitalizado los dibujos.[EN] The part documented consists of one independent building (not free-standing through) which is the former hostel. The size of this building is 25x15 metres and is composed by 8 vaulted spaces. On the outside Northern wall there is a fountain called “Fuente de Felipe II”.
The so-called “Archdeacon’s bedchamber” consists of one entrance (called “the Knights’ door”) to the cloister, which is one space of around 6 by 6 metres and one adjacent room of around 6x12 metres that, at current, is used as a chapel. This last area has three stained glasses.The so-called “Archdeacon’s bedchamber” consists of one entrance (called “the Knights’ door”) to the cloister, which is one space of around 6 by 6 metres and one adjacent room of around 6x12 metres that, at current, is used as a chapel. This last area has three stained glasses.Gobierno de La Rioja - Consejería de Educación, Cultura y Deportes[ES] Memoria del proyecto (45 páginas) en formato PDF + 14 fotografías de documentación (formato JPEG).[EN] General report (45 pages in Spanish) format PDF + 14 photographs for documentation purposes (JPEG)
Alberta Stroke Program Early CT Score applied to CT angiography source images is a strong predictor of futile recanalization in acute ischemic stroke
The final publication is available at Springer via http://dx.doi.org/10.1007/s00234-016-1652-7Introduction Reliable predictors of poor clinical outcome despite successful revascularization might help select patients with acute ischemic stroke for thrombectomy. We sought to determine whether baseline Alberta Stroke Program Early CT Score (ASPECTS) applied to CT angiography source images (CTA-SI) is useful in predicting futile recanalization. Methods Data are from the FUN-TPA study registry (ClinicalTrials.gov; NCT02164357) including patients with acute ischemic stroke due to proximal arterial occlusion in anterior circulation, undergoing reperfusion therapies. Baseline non-contrast CT and CTA-SI-ASPECTS, timelapse to image acquisition, occurrence, and timing of recanalization were recorded. Outcome measures were NIHSS at 24 h, symptomatic intracranial hemorrhage, modified Rankin scale score, and mortality at 90 days. Futile recanalization was defined when successful recanalization was associated with poor functional outcome (death or disability).
Results Included were 110 patients, baseline NIHSS 17 (IQR 12; 20), treated with intravenous thrombolysis (IVT; 45 %), primary mechanical thrombectomy (MT; 16 %), or combined IVT+MT (39 %). Recanalization rate was 71 %,
median delay of 287 min (225; 357). Recanalization was futile in 28 % of cases. In an adjusted model, baseline CTA-SI-ASPECTS was inversely related to the odds of futile recanalization (OR 0.5; 95 % CI 0.3–0.7), whereas NCCT-ASPECTS was not (OR 0.8; 95 % CI 0.5–1.2). A score ≤5 in CTA-SIASPECTS was the best cut-off to predict futile recanalization (sensitivity 35 %; specificity 97 %; positive predictive value 86 %; negative predictive value 77 %).
Conclusions CTA-SI-ASPECTS strongly predicts futile recanalization and could be a valuable tool for treatment decisions regarding the indication of revascularization therapie
Intravenous thrombolytic treatment in the oldest old
Background and Purpose. Intravenous thrombolysis using tissue plasminogen activator is safe and probably effective in patients
>80 years old. Nevertheless, its safety has not been specifically addressed for the oldest old patients (≥85 years old, OO). We
assessed the safety and effectiveness of thrombolysis in this group of age. Methods. A prospective registry of patients treated with
intravenous thrombolysis. Patients were divided in two groups (<85 years and the OO). Demographic data, stroke aetiology and
baseline National Institute Health Stroke Scale (NIHSS) score were recorded. The primary outcome measures were the percentage
of symptomatic intracranial haemorrhage (SICH) and functional outcome at 3 months (modified Rankin Scale, mRS). Results. A
total of 1,505 patients were registered. 106 patients were OO [median 88, range 85–101]. Female sex, hypertension, elevated blood
pressure at admission, cardioembolic strokes and higher basal NIHSS score were more frequent in the OO. SICH transformation
rates were similar (3.1% versus 3.7%, P = 1.00). The probability of independence at 3 months (mRS 0–2) was lower in the OO
(40.2% versus 58.7%, P = 0.001) but not after adjustment for confounding factors (adjusted OR, 0.82; 95% CI, 0.50 to 1.37;
P = 0.455). Three-month mortality was higher in the OO (28.0% versus 11.5%,P < 0.001). Conclusion. Intravenous thrombolysis
for stroke in OO patients did not increase the risk of SICH although mortality was higher in this groupThis work is part of the Spanish collaborative research
network RENEVAS (Instituto de Salud Carlos III, Ministerio
de Ciencia e Innovación, RD06/0026/008, RD07/0026/2003
Futile Interhospital Transfer for Endovascular Treatment in Acute Ischemic Stroke The Madrid Stroke Network Experience
Background and purpose: The complexity of endovascular revascularization treatment (ERT) in acute ischemic stroke and the small number of patients eligible for treatment justify the development of stroke center networks with interhospital patient transfers. However, this approach might result in futile transfers (ie, the transfer of patients who ultimately do not undergo ERT). Our aim was to analyze the frequency of these futile transfers and the reasons for discarding ERT and to identify the possible associated factors.
Methods: We analyzed an observational prospective ERT registry from a stroke collaboration ERT network consisting of 3 hospitals. There were interhospital transfers from the first attending hospital to the on-call ERT center for the patients for whom this therapy was indicated, either primarily or after intravenous thrombolysis (drip and shift).
Results: The ERT protocol was activated for 199 patients, 129 of whom underwent ERT (64.8%). A total of 120 (60.3%) patients required a hospital transfer, 50 of whom (41%) ultimately did not undergo ERT. There were no differences in their baseline characteristics, the times from stroke onset, or in the delays in interhospital transfers between the transferred patients who were treated and those who were not treated. The main reasons for rejecting ERT after the interhospital transfer were clinical improvement/arterial recanalization (48%) and neuroimaging criteria (32%).
Conclusions: Forty-one percent of the ERT transfers were futile, but none of the baseline patient characteristics predicted this result. Futility could be reduced if repetition of unnecessary diagnostic tests was avoided
Corazón univentricular sin cirugía de Fontan: el tipo de paliación importa
[EN] Introduction and objectives: There is scarce information on patients with single ventricle physiology (SVP) and restricted pulmonary flow not undergoing Fontan circulation. This study aimed to compare survival and cardiovascular events in these patients according to the type of palliation. Methods: SVP patient data were obtained from the databases of the adult congenital heart disease units of 7 centers. Patients completing Fontan circulation or developing Eisenmenger syndrome were excluded. Three groups were created according to the source of pulmonary flow: G1 (restrictive pulmonary forward flow), G2 (cavopulmonary shunt), and G3 (aortopulmonary shunts ± cavopulmonary shunt). The primary endpoint was death. Results: We identified 120 patients. Mean age at the first visit was 32.2 years. Mean follow-up was 7.1 years. Fifty-five patients (45.8%) were assigned to G1, 30 (25%) to G2, and 35 (29.2%) to G3. Patients in G3 had worse renal function, functional class, and ejection fraction at the first visit and a more marked ejection fraction decline during follow-up, especially when compared with G1. Twenty-four patients (20%) died, 38 (31.7%) were admitted for heart failure, and 21 (17.5%) had atrial flutter/fibrillation during follow-up. These events were more frequent in G3 and significant differences were found compared with G1 in terms of death (HR, 2.9; 95%CI, 1.14-7.37; P = .026) and atrial flutter/fibrillation (HR, 2.9; 95%CI, 1.11-7.68; P = .037). Conclusions: The type of palliation in patients with SVP and restricted pulmonary flow not undergoing Fontan palliation identifies distinct profiles. Patients palliated with aortopulmonary shunts have an overall worse prognosis with higher morbidity and mortality.[ES] Introducción y objetivos: La información sobre pacientes con fisiología univentricular (FU) y flujo pulmonar restrictivo no sometidos a cirugía de Fontan es escasa. El objetivo de este estudio es comparar la supervivencia y los eventos cardiovasculares en estos pacientes según el tipo de paliación. Métodos: Los datos de pacientes con FU se obtuvieron de las bases de datos de 7 centros con unidades de cardiopatías congénitas del adulto. Se excluyó a los pacientes que completaron la circulación de Fontan o desarrollaron un síndrome de Eisenmenger. Se crearon 3 grupos según la fuente de flujo pulmonar: G1, flujo anterógrado pulmonar restrictivo; G2, shunt cavopulmonar, y G3, shunt aortopulmonar ± shunt cavopulmonar. El objetivo principal fue la muerte. Resultados: Se identificó a 120 pacientes. La media de edad en la primera visita fue 32,2 años. El seguimiento medio fue de 7,1 años. Se asignó a 55 pacientes (45,8%) al G1, 30 (25%) al G2 y 35 (29,2%) al G3. Los pacientes del G3 tenían peores función renal, clase funcional y fracción de eyección en la primera visita y mostraron una disminución más marcada de la fracción de eyección durante el seguimiento, especialmente en comparación con el G1. Veinticuatro pacientes (20%) fallecieron, 38 (31,7%) ingresaron por insuficiencia cardiaca y 21 (17,5%) presentaron aleteo/fibrilación auricular durante el seguimiento. Estos eventos fueron más frecuentes en el G3 y al compararlos con los del G1 se encontraron diferencias significativas en muerte (HR = 2,9; IC95%, 1,14-7,37; p = 0,026) y aleteo/fibrilación auricular (HR = 2,9; IC95%, 1,11-7,68; p = 0,037). Conclusiones: El tipo de paliación de los pacientes con FU y flujo pulmonar restrictivo no sometidos a cirugía de Fontan identifica distintos perfiles. Los pacientes paliados con derivaciones aortopulmonares presentan un peor pronóstico, con más morbilidad y mortalidad.Peer reviewe
Evolving trends in the management of acute appendicitis during COVID-19 waves. The ACIE appy II study
Background: In 2020, ACIE Appy study showed that COVID-19 pandemic heavily affected the management of patients with acute appendicitis (AA) worldwide, with an increased rate of non-operative management (NOM) strategies and a trend toward open surgery due to concern of virus transmission by laparoscopy and controversial recommendations on this issue. The aim of this study was to survey again the same group of surgeons to assess if any difference in management attitudes of AA had occurred in the later stages of the outbreak.
Methods: From August 15 to September 30, 2021, an online questionnaire was sent to all 709 participants of the ACIE Appy study. The questionnaire included questions on personal protective equipment (PPE), local policies and screening for SARS-CoV-2 infection, NOM, surgical approach and disease presentations in 2021. The results were compared with the results from the previous study.
Results: A total of 476 answers were collected (response rate 67.1%). Screening policies were significatively improved with most patients screened regardless of symptoms (89.5% vs. 37.4%) with PCR and antigenic test as the preferred test (74.1% vs. 26.3%). More patients tested positive before surgery and commercial systems were the preferred ones to filter smoke plumes during laparoscopy. Laparoscopic appendicectomy was the first option in the treatment of AA, with a declined use of NOM.
Conclusion: Management of AA has improved in the last waves of pandemic. Increased evidence regarding SARS-COV-2 infection along with a timely healthcare systems response has been translated into tailored attitudes and a better care for patients with AA worldwide
Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)
Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters.
Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs).
Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001).
Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio
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