Exemplos de uso de Bundle-branch block em Inglês e suas traduções para o Português
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Association of myocardial infarction with bundle-branch blocks.
Six patients 9.8% had right bundle-branch block; five 8.2%, left bundle-branch block; and one 1.6%, left anterior hemiblock.
Subepicardial ischemia- Must be distinguished from secondary alterations in ventricular repolarization in LVO or bundle-branch blocks.
Ventricular arrhythmias, atrial fibrillation and right bundle-branch block can be observed, indicating worse prognosis.
Some of these alterations are considered as relative contraindications to the use of ChEI such as atrioventricular block and complete bundle-branch block.
The resting ECG before exertion was consistent with incomplete right bundle-branch block with an ST segment only elevated in V3 lead.
Aberrant conduction- Supraventricular stimulus with compromised regional propagation in the conduction system,generating a QRS complex with a bundle-branch block morphology.
Thirty-three patients 68.8% had ST-segment elevation, four patients had new bundle-branch block, eight had ST-segment depression, and three had other alterations.
Patients with AV block or bundle-branch block in the electrocardiogram or patients with preoperative baseline systolic blood pressure< 100 mmHg and/or HR< 50 bpm were also excluded.
Atrial extrasystole with aberrant conduction- Atrial beat with a P wave followed by a QRS with a bundle-branch block morphology.
With intraventricular conduction disorders, such as left bundle-branch block, a simple electrocardiogram can detect the signs, which are confirmed by a cardiac ultrasound.
Left bundle-branch block was more frequently found in IHD than in CCC p< 0.05,and right bundle-branch block associated with left anterior hemiblock was more frequently found in CCC p< 0.05.
Intraventricular blocks are also frequent in CCC, especially right bundle-branch block associated with left anterior hemiblock.
On ECG, right bundle-branch block associated with left anterior hemiblock is highly suggestive of CCC in patients from endemic areas, while left bundle-branch block makes the chagasic etiology less likely.
Electrocardiograms were abnormal for all patients in groups 1 and 2, with a predominance of right bundle-branch block 58.9%, and left anterior hemiblock 51.3% findings.
When analyzed in isolation,the presence of right bundle-branch block is frequent in pulmonary thromboembolism, mainly in massive pulmonary thromboembolism, right bundle-branch block being observed in 16 to 26% of the cases.
The electrocardiogram showed that the patient presented dual-chamber pacing with adequate capture and right bundle-branch block pattern, corroborating the artificial left ventricular stimulation Figure 2.
Patients with the following characteristics were excluded: ST-segment elevation AMI; noncardiac symptoms; secondary unstable angina; and confounding electrocardiographic EKG changes, such as pacemaker rhythm,atrial fibrillation rhythm, and bundle-branch blocks.
Electrocardiographic signs include sinus tachycardia and, less often, atrial fibrillation,right bundle-branch block or other right ventricular strain findings, such as a S1Q3L3 pattern.
Patients with diabetes mellitus n 44, family history of CAD n 11, coronary slow flow n=6, chronic inflammatory diseases or elevated C-reactive protein levels n 11, chronic kidney disease n 9, evidence of left ventricle hypertrophy n 6, known vascular disease n=4, moderate to severe valvularheart disease n 4, complete or incomplete bundle-branch block and QRS duration>= 120 ms n 8 were excluded.
The concerns regarding the assessment of the damages caused by the iatrogenic left bundle-branch block produced by the stimulation of the RV apex in conventional cardiac pacemakers are relatively recent.
Twelve 9.5% were related to the conduction system:2:1 AV block during catheter handling in one child; transient CAVB induced by catheter handling in another child, and during RFA in 3 children 2.4% Right bundle-branch block occurred in seven children 5.6%, six during catheter handling and one during RFA.
The ECG was considered altered in the presence of any incomplete or complete bundle-branch block, any type of atrioventricular block, mono- or polymorphic ventricular extrasystole, and nonsustained ventricular tachycardia NSVT.
Fragmentation of the QRS complex fQRS- Presence of notches in the R orS wave in two contiguous leads in the absence of bundle-branch block or, when the block is present, the finding of more than two notches.
With progression to the cardiac form,the most frequently found changes include right bundle-branch block, often associated with left anterior hemiblock, presence of electrically inactive zones, ST-T abnormalities, ventricular extrasystoles and AVB.
The most frequent alterations were pericardial effusion 46.2%, ventricular repolarization alteration 38.5%,ventricular extrasystoles 5.8%, right bundle-branch block 4.8%, atrial fibrillation 4.8% and left ventricular systolic dysfunction 3.7.
The choice of each of these methods should be based on the following factors: 1 the patient profile, including physical condition and stress tolerance,resting ECG results bundle-branch block, permanent pacemaker implantation, and repolarization changes, among others; 2 previous history of CAD MI and revascularization; 3 patient preferences and occupation, including professions in which individuals require an accurate diagnosis because of potential risks to other people, and when medical assistance is unavailable, such as during acute MI AMI.