Electrocardiography
Conditions
Interventions
STEP 1 - Perform the ECG according to the practices recommended by the
references. 2
25.
Protocol 1 located in Appendix G will be used, which describes the correct practice
necessary steps for the procedure. Where precordial electrodes will be allocated
strictly in accordance with in
25.
The exam will be carried out by two nurses responsible for this research,
waived the requirement to sign the consent form because they are responsible
techniques of that study.
STEP 2 - Performin
Procedure/surgery
C14.280.647.500
C14.280.647.187.150
Sponsors
Instituto Nacional de Cardiologia
Lorena Xavier Rocha Carvalho
Jessica de Oliveira Calazans
Eligibility
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: literate who can read and write; is that hospitalized at the time of carrying out the research in the specific ward for treatment of coronary diseases of that institution; in pre and post-myocardial revascularization surgery operatives; with medical diagnosis of unstable angina; or acute myocardial infarction.
Exclusion criteria
Exclusion criteria: All patients with abnormalities of cardiac cavities
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| It is expected to find differences in the results of ECGs from the comparison between two different techniques in each participant: correct (according to the guidelines and main references) x an incorrect technique (observed in practice from the confusion between the position of the electrodes of the leads V1 and V2 in the recommended intercostal spaces - 4th intercostal space - and in cardiac auscultation spaces - 2nd intercostal space). The applied methodology will be done through the use of two pre-formulated protocols (incorrect technique versus incorrect technique), and the order of accomplishment of each one of the techniques will occur from a randomization table, being informed by a study collaborator who does not participate in the exams, and ECG collaborators are not allowed access to the table | — |
Secondary
| Measure | Time frame |
|---|---|
| No statistically significant differences were observed between the data obtained between protocol 1, of the technique guided by the current existing references, and protocol 2, created from the observation of the incorrect application of the electrodes in cardiac auscultation foci. The exception was the variable of the presence of a negative P wave in V1, where a statistically significant difference was observed in the comparison between the two protocols, with a P value of 0.003. | — |
Countries
Brazil
Contacts
Public ContactJesisca;Jessica Calazans;Calazans
Instituto Nacional de Cardiologia;Jessica de Oliveira Calazans
Outcome results
None listed