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1.
PAOLO ALBONI NELLY PAPARELLA RICCARDO CAPPATO PAOLO PEDRONI GIAN CARLO CANDINI GIAN ENRICO ANTONIOLI 《Pacing and clinical electrophysiology : PACE》1989,12(2):294-300
The purpose of this study was to find out whether transesophageal pacing could be utilized for assessment of sinus node function in patients with sick sinus syndrome (SSS). In 17 patients with SSS (study group) we compared the results of sinus node tests obtained both in the basal state and after pharmacological autonomic blockade by endocavitary stimulation and, 24 hours later, by transesophageal pacing. In another group of 17 patients with SSS (control group), we compared the results obtained by two endocavitary studies. In "study group", sinus cycle length (SCL) and corrected sinus node recovery time (CSRT) did not show significant differences between the two studies both in the basal state and after autonomic blockade, whereas sinoatrial conduction time (SACT) was more prolonged during esophageal pacing (P less than 0.01). In "control group", sinus node measures did not show significant differences between the two studies. In the "study group," the following coefficients of correlation were obtained in the basal state; SCL, r = 0.65, CSRT, r = 0.57, SACT, r = 0.52 and after autonomic blockade: SCL, r = 0.95, CSRT, r = 0.62 and SACT, r = 0.53. In the basal state, the correlation for SCL and CSRT between the two studies was lower in the "study group" than in the "control group" (P less than 0.05), whereas after autonomic blockade the correlation for sinus node measures did not show significant differences between the two groups of patients. These data suggest that transesophageal study influences the autonomic tone regulating the sinus node; however, it is not responsible for important variations in sinus node measures.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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Autoantibodies against β1‐Adrenergic Receptors: Response to Cardiac Resynchronization Therapy and Renal Function 下载免费PDF全文
ANTONIO MICHELUCCI M.D. MARIO MILCO D'ELIOS M.D. ELENA STICCHI Ph.D. PAOLO PIERAGNOLI M.D. GIUSEPPE RICCIARDI M.D. CINZIA FATINI Ph.D. MARISA BENAGIANO Ph.D. ELENA NICCOLAI Ph.D. ALESSIA GRASSI M.Sc. PAOLA ATTANÀ M.D. MARTINA NESTI M.D. GINO GRIFONI M.D. LUIGI PADELETTI M.D. ROSANNA ABBATE M.D. DOMENICO PRISCO M.D. 《Pacing and clinical electrophysiology : PACE》2016,39(1):65-72
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MARCO SCAGLIONE M.D. DOMENICO CAPONI M.D. MATTEO ANSELMINO M.D. Ph.D. FRANCESCA DI CLEMENTE M.D. ALESSANDRO BLANDINO M.D. FEDERICO FERRARIS M.D. PAOLO DI DONNA M.D. ELISA EBRILLE M.D. FRANCK HALIMI M.D. JEAN F. LECLERCQ M.D. COSTANZA IUNCO M.D. CARLOEUGENIO VAUDAGNA M.D. FEDERICO CESARANI M.D. FIORENZO GAITA M.D. 《Journal of cardiovascular electrophysiology》2014,25(12):1299-1305
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SARAH BUERKI KATJA ROELLIN LUCA REMONDA DANIELLE GUBSER MERCATI PIERRE‐YVES JEANNET ELMAR KELLER JUERG LUETSCHG CAROLINE MENACHE GIAN PAOLO RAMELLI THOMAS SCHMITT‐MECHELKE MARKUS WEISSERT EUGEN BOLTSHAUSER MAJA STEINLIN 《Developmental medicine and child neurology》2010,52(11):1033-1037
Aim The aim of this study was to describe neuroimaging patterns associated with arterial ischaemic stroke (AIS) in childhood and to differentiate them according to stroke aetiology. Method Clinical and neuroimaging (acute and follow‐up) findings were analysed prospectively in 79 children (48 males, 31 females) aged 2 months to 15 years 8 months (median 5y 3mo) at the time of stroke by the Swiss Neuropaediatric Stroke Registry from 2000 to 2006. Results Stroke was confirmed in the acute period in 36 out of 41 children who underwent computed tomography, in 53 of 57 who underwent T2‐weighted magnetic resonance imaging (MRI) and in all 48 children who underwent diffusion‐weighted MRI. AIS occurred in the anterior cerebral artery (ACA) in 63 participants and in all cases was associated with lesions of the middle cerebral artery (MCA). The lesion was cortical–subcortical in 30 out of 63 children, cortical in 25 out of 63, and subcortical in 8 of 63 children. Among participants with AIS in the posterior circulation territory, the stroke was cortical–subcortical in 8 out of 16, cortical in 5 of 16, and thalamic in 3 out of 16 children. Interpretation AIS mainly involves the anterior circulation territory, with both the ACA and the MCA being affected. The classification of Ganesan is an appropriate population‐based classification for our Swiss cohort, but the neuroimaging pattern alone is insufficient to determine the aetiology of stroke in a paediatric population. The results show a poor correlation between lesion pattern and aetiology. 相似文献
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ABSTRACT. Nine preterm newborn infants who were maintained on conventional mechanical ventilation for respiratory diseases were given high frequency jet ventilation in the same inspired FiO2 for short periods (10-120 min). Lower mean airway pressures were used in high frequency jet ventilation (0.70±0.2 kPa versus 0.96±0.2 kPa in intermittent positive pressure ventilation), and peak inspiratory pressures were reduced from 2.06±0.4 to 1.38±0.24 kPa. Respiratory and haemodynamic data were compared with those obtained in intermittent positive pressure ventilation, Pa02 and Pc02 were similar, while an increase in pH and reduction of central venous pressure were observed during high frequency jet ventilation. This preliminary study indicates that high frequency jet ventilation provides good ventilatory support, at least for short periods, with reduced airway pressures, and could be a promising technique for prevention of acute and chronic pulmonary barotrauma. 相似文献
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Lissoni P Bonfanti A Bordin V Barni S Vigore L Ferrante R Rovelli F Fumagalli L 《Hematology (Amsterdam, Netherlands)》2000,5(2):117-125
Lymphocytosis is the main biomarker predicting the efficacy of subcutaneous IL-2 anticancer immunotherapy. In addition, it has been demonstrated the fundamental role of dendritic cells (DC) in the generation of an effective anticancer immunity. However, the relation between IL-2 and DC system needs to be further understood. This preliminary study was performed in an attempt to analyze changes in circulating DC during IL-2 cancer immunotherapy in relation to lymphocyte variations and clinical efficacy of treatment. The study included 20 metastatic renal cell cancer patients, who underwent subcutaneous low-dose IL-2 immunotherapy (6.000.000 IU/day for 6 days/week for 4 weeks). To evaluate DC, venous blood samples were collected before and after 2 weeks of IL-2 injections, corresponding to the period of maximum lymphocytosis. Immature (CD123(+) ) and mature (CD11c(+) ) DC were measured by FACS and monoclonal antibodies. IL-2 induced a significant increase in the mean number of circulating mature DC, whereas no substantial change occurred in immature DC mean number. The increase in mature DC was associated with a control of disease, whereas no rise was observed in patients who had progressed on IL-2 immunotherapy. Moreover, the increase in mature DC mean number was significantly higher in patients showing evident lymphocytosis, with lymphocyte enhancement greater than 1000 cells/mmc, than in patients with less pronounced lymphocytosis, even though no significant correlation was seen in between mature DC and lymphocyte increase. This preliminary study would suggest that IL-2 may stimulate DC system and that the clinical anticancer efficacy of IL-2 is associated with the increase in circulating mature DC, which could be considered as a new favourable biomarker during IL-2 immunotherapy. 相似文献
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