Giorgio Rognoni

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The two common genetic variants (A and B) of bovine kappa-casein originate from two point mutations in the codons for the aminoacids in position 136 and 148. These mutations give rise to polymorphic sites for the restriction endonucleases Hin dIII, AluI, HinfI, Mbo II and TaqI. We have examined DNAs of several Italian Friesian cows and bulls of known and(More)
Blood samples were collected from more than 100 animals in each of 2 Spanish cattle breeds (Retinto and De Lidia), 2 Portuguese breeds (Alentejana and Mertolenga), and American Longhorn cattle. All samples for the 4 Iberian breeds were tested for 20 polymorphic systems; American Longhorn were tested for 19 of the 20. For each breed an average inbreeding(More)
An improvement in detecting His bundle activity using a Marquette high resolution Mac unit, without pharmacologic depression of AV node conduction, was obtained with two surface lead systems, which were selected on the basis of the His bundle anatomical position and its electrostimulation axis. In 8 patients the direction of the His bundle bipolar(More)
OBJECTIVES In order to assess possible functional and hemodynamic benefits of different programming of atrioventricular (AV) delay--156 ms fixed vs 156 to 63 adaptive--two maximal exercise tests (cyclette) were performed in 8 patients (6 males, 2 females; 69 +/- 6 years) implanted with Chorus 6003 (Ela Medical, France) DDD pacemakers for complete AV block(More)
Recent clinical trials have shown that selected patients with recurrent vasovagal syncope (VVS) may benefit from permanent cardiac pacing. In a previous study using head-up tilt testing (HUT) the authors demonstrated that the increase in sympathetic activity preceding syncope could be sensed by a microaccelerometer located in the tip of a ventricular pacing(More)
Flecainide is a class Ic anti - arrhythmic drug with sodium channel blocking activities. We report a case of a 57 year - old woman who attempted a suicide by ingesting approximately 1,8 gr of flecainide. On the surface electrocardiogram this results in a large QRS complex and in prolongation of the QTc interval. Overdose with a class Ic drug is very(More)
Clinical and physiological data on long-term follow-up of 143 patients with respiratory-dependent pacemakers (RDP3) are reported; 121 patients received ventricular (VVI-RD) and 22 patients atrial (AAI-RD) respiratory-dependent stimulation. Functional evaluation was based on the exercise testing (130 pts) with oxygen uptake VO2, ventilation, ECG and arterial(More)
Endless loop tachycardia (ELT) is a possible complication in dual chamber pacing; it is usually prevented by programming the atrial refractory period (PVARP) longer than the retrograde ventriculoatrial (VA) conduction interval; this in some patients limits the upper rate. In 15 patients with a DDD (nine patients) or a single-pass lead VDD pacemaker (six(More)
In an attempt to resolve some of the controversies concerning the dose requirements and duration of effects of transdermal nitroglycerin (NTG) in patients with heart failure (CHF), the short-term hemodynamic responses to transdermal NTG, in a 20 cm2 self-adhesive patch (10 mg/24 h), were evaluated in 10 patients with severe chronic CHF using a randomized,(More)