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Papers by Jose Vidal
Journal of Hypertension, 2004
The American Journal of Cardiology, 1983
ExtrasUmulus-induced intraatrial conduction delays were measured in 12 patients with documented e... more ExtrasUmulus-induced intraatrial conduction delays were measured in 12 patients with documented episodes of atrial fibrillation (AF) by recording atrial electrograms at the high right atrium, His bundle region, and coronary sinus, Seventeen patients with and without heart disease, but without atrial arrhythmias served as the control group. During baseline-paced atrial rhythms, a conduction delay zone could be delineated, near the atrial effective refractory period, during which all extrastimuli produced conduction delays. When compared at the same paced cycle lengths (500 to 650 ms), the patients with AF had shorter atrial effective refractory periods (mean-4-standard deviation 206 4-24.1 versus 233 4-28.2 in control patients, p <0.02), wider conduction delay zones (79 4-21.7 ms versus 52-t-21 in control patients, p <0.01), and longer conduction delays both to the His bundle region (64
Memorias De Historia Antigua, 1988
Analytica Chimica Acta, 2007
The monitoring of anabolic steroid residues in hair is undoubtedly one of the most efficient stra... more The monitoring of anabolic steroid residues in hair is undoubtedly one of the most efficient strategies to demonstrate the long-term administration of these molecules in meat production animals. A multi-residue sample preparation procedure was developed and validated for 28 steroids. A 100 mg hair sample was grinded into powder and extracted at 50 degrees C with methanol. After acidic hydrolysis and extraction with ethyl acetate, phenolsteroids, such as estrogens, resorcyclic acid lactones and stilbens in one hand, are separated from androgens and progestagens in the other hand. Solid phase extractions were performed before applying a specific derivatisation for each compound sub-group. Detection and identification were achieved using gas chromatography-tandem mass spectrometry with acquisition in the selected reaction monitoring mode after electron ionisation. The method was validated according to the 2002/657/EC guideline. Decision limits (CCalpha) for main steroids were in the 0.1-10 microg kg(-1) range.
Acta Otorrinolaringológica Española, 2011
Hemangioma capilar; Oído medio; Tumor vascular benigno Resumen Los hemangiomas capilares se consi... more Hemangioma capilar; Oído medio; Tumor vascular benigno Resumen Los hemangiomas capilares se consideran tumores vasculares benignos. Aproximadamente dos tercios de los mismos se localizan en cabeza y cuello. Su origen en oído medio procede del aporte vascular del ganglio geniculado. Se encuentran infradiagnosticados debido a la gran variedad de patologías con similares manifestaciones clínicas y radiológicas, siendo definitivo, el examen histológico para su diagnóstico.
Journal of Hypertension, 2004
The American Journal of Cardiology, 1983
ExtrasUmulus-induced intraatrial conduction delays were measured in 12 patients with documented e... more ExtrasUmulus-induced intraatrial conduction delays were measured in 12 patients with documented episodes of atrial fibrillation (AF) by recording atrial electrograms at the high right atrium, His bundle region, and coronary sinus, Seventeen patients with and without heart disease, but without atrial arrhythmias served as the control group. During baseline-paced atrial rhythms, a conduction delay zone could be delineated, near the atrial effective refractory period, during which all extrastimuli produced conduction delays. When compared at the same paced cycle lengths (500 to 650 ms), the patients with AF had shorter atrial effective refractory periods (mean-4-standard deviation 206 4-24.1 versus 233 4-28.2 in control patients, p <0.02), wider conduction delay zones (79 4-21.7 ms versus 52-t-21 in control patients, p <0.01), and longer conduction delays both to the His bundle region (64
Memorias De Historia Antigua, 1988
Analytica Chimica Acta, 2007
The monitoring of anabolic steroid residues in hair is undoubtedly one of the most efficient stra... more The monitoring of anabolic steroid residues in hair is undoubtedly one of the most efficient strategies to demonstrate the long-term administration of these molecules in meat production animals. A multi-residue sample preparation procedure was developed and validated for 28 steroids. A 100 mg hair sample was grinded into powder and extracted at 50 degrees C with methanol. After acidic hydrolysis and extraction with ethyl acetate, phenolsteroids, such as estrogens, resorcyclic acid lactones and stilbens in one hand, are separated from androgens and progestagens in the other hand. Solid phase extractions were performed before applying a specific derivatisation for each compound sub-group. Detection and identification were achieved using gas chromatography-tandem mass spectrometry with acquisition in the selected reaction monitoring mode after electron ionisation. The method was validated according to the 2002/657/EC guideline. Decision limits (CCalpha) for main steroids were in the 0.1-10 microg kg(-1) range.
Acta Otorrinolaringológica Española, 2011
Hemangioma capilar; Oído medio; Tumor vascular benigno Resumen Los hemangiomas capilares se consi... more Hemangioma capilar; Oído medio; Tumor vascular benigno Resumen Los hemangiomas capilares se consideran tumores vasculares benignos. Aproximadamente dos tercios de los mismos se localizan en cabeza y cuello. Su origen en oído medio procede del aporte vascular del ganglio geniculado. Se encuentran infradiagnosticados debido a la gran variedad de patologías con similares manifestaciones clínicas y radiológicas, siendo definitivo, el examen histológico para su diagnóstico.