[Ventricular pre-excitation in XXXX in the aged].

@entity1 @entity296 @entity1347 @entity591 @entity4346 @entity955 @entity3153
AIM: To evaluate any differences in ventricular pre-excitation secondary to @entity3153 in the aged compared to young and adult @entity1 . METHODS:                 <AbstractText Label="EXPERIMENTAL DESIGN" NlmCategory="METHODS">a clinical study was performed using a comparative prospective criterion with retrospective analysis. The duration of follow-up ranged between one and ten years. SETTING: the series was collected from the Cardiology Clinic of the Health District and the Cardiology Division of Gorizia, both forming part of no. 2 Isontina Health Service. @entity1 OR @entity1 : the series included 17 @entity1 suffering from @entity3153 who were divided into two study groups: 9 elderly @entity1 and 8 young @entity1 . The latter were subdivided into a first subgroup of 4 cases with @entity3153 with ECG positive for the presence of delta waves, and a second subgroup also with @entity3153 secondary to bundle. INTERVENTIONS: some young @entity1 with @entity3153 who were symptomatic for @entity591 underwent ablative surgery with radiofrequency of the bundle. PARAMETERS: all @entity1 underwent cardiological screening focused in particular on surface electrocardiogram. Those cases with @entity3153 with occult bundle underwent transesophageal electrostimulation to find the conduction threshold of the anomalous bundle. RESULTS: Adult-elderly @entity1 : six subjects were diagnosed with antero-septal and left ventricular Kent's bundle (type B common) and 3 cases with Mahaim-Wiston bundle (type A rare). Surface ECG revealed the presence of @entity4346 in 6 cases, @entity1347 and total block of the left branch in 3 cases, as well as @entity296 correlated to @entity3153 . Young @entity1 : four out of this group were affected by Kent's bundle with type B @entity3153 and the same number suffered from the same syndrome caused by occult bundle. @entity1 in the first subgroup showed an antero-septal, transitional and left ventricular orientation of Kent's bundle, with the onset of 2 cases of orthodromic and antidromic reciprocal rhythm respectively and 1 case of @entity955 . The refractory nature of the anomalous pathway was not very high in 2 cases, equal to 60 milliseconds and 240 milliseconds with the proposed ablation of the anomalous bundle.
