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Occurrence of arrhythmias during restorative dental procedure under local anesthesia with lidocaine associated adrenaline in heart failure patient: double-blind study

Grant number: 12/16858-1
Support type:Regular Research Grants
Duration: February 01, 2014 - July 31, 2016
Field of knowledge:Health Sciences - Dentistry
Principal researcher:Itamara Lucia Itagiba Neves
Grantee:Itamara Lucia Itagiba Neves
Home Institution: Instituto do Coração Professor Euryclides de Jesus Zerbini (INCOR). Hospital das Clínicas da Faculdade de Medicina da USP (HCFMUSP). Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil
Assoc. researchers:Edimar Alcides Bocchi ; Maria Cristina Marino de Oliveira ; Sergio Eduardo Tricta Quaresma

Abstract

Heart failure is defined as the inability of the heart to offer blood supply required to meet metabolic demand of the tissues and thus exercise adequately its role as a pump. According to data collected from the single health system (DATASUS), approximately 6.4 million Brazilians have heart failure. This large contingent of patients will require multi-professional treatment, in particular, careful with dental health heart failure is regarded as the final common pathway of most cardiovascular diseases and, after installation of symptoms (mainly in the stages of functional class NYHA III and IV) have poor prognosis with average survival of 1.7 years 3.2 years for men and for women. Dental treatment often requires application of local anesthetic. The adrenaline, agent vasoconstrictor, is widely used in dental treatment and aims to extend the effect of local anesthetic. Specifically in people with heart failure, there shortcomings of evidence in the literature, the harmful effects of adrenaline 1:100,000 added to the local anaesthetic lidocaine. Among the potential complications, we can highlight: arrhythmias, systemic blood pressure elevation and elevation of heart rate. The main objective of this work will investigate the occurrence of arrhythmias by evaluating of electrocardiographic parameters. Our secondary objectives will be assessing: variations of blood pressure by ambulatory blood pressure monitoring, cardiac frequency and chest pain. We will study 70 patients between 18 and 75 years with a diagnosis of congestive heart failure functional class NYHA III and IV and restorative dental treatment indication. A random picture in double-blind study, patients are divided into two groups, one group receives as local anesthetic lidocaine 2% with adrenaline 1 in comparison with the second group that will receive 2% lidocaine with vasoconstrictor. (AU)

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