To investigate the occurrence of arrhythmias in dental treatment with local anesthetic.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
70
Lidocaine without vasoconstrictor , lidocaine with epinephrine 1:100,000
Instituto do Coração HCFMUSP
São Paulo, São Paulo, Brazil
RECRUITINGHeart rate (bpm)
The continuous electrocardiogram recording for a period of 24 hours will be obtained through the Holter monitor model Seer Ligth (GE), with three channels (seven-way) cable, installed a half hour before the dental procedure. The first analysis will be done automatically by the computer system, followed by visual and manual review at which supraventricular and ventricular premature heartbeats will be filtered accurately. Electrocardiographic variables are: heart rate maximum, minimum and mean HR, supraventricular extrasystole (VES) and ventricular (EV) FC. The program shall provide the record in HR per minute for 24 hours. The average individual will be calculated for the period studied, to then calculate the sample mean and groups LSA and LCA. The ESV and EV will be identified in tracing obtained every minute. Consider the valid values recorded HR and ischemic episodes; analyze the occurrence of EV and ESV occurring in number\> 10 per hour in both groups, by study period.
Time frame: 24 hours
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