JOICE ANAIZE TONON DO AMARAL
Projetos de Pesquisa
Unidades Organizacionais
LIM/30 - Laboratório de Investigação em Cirurgia Pediát, Hospital das Clínicas, Faculdade de Medicina
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- A comparison between two indirect potentiometric procedure for determination of sodium and potasium concentrations in serum - FLEXOR EL 200 ELITech vs Rapidlab 348-Bayer(2016) FONSECA, Fernando; BELARDO, Thais; SALATINI, Renata; AMARAL, Joice Anaize; PEREIRA, Edimar; RAIMUNDO, Rodrigo
- Bioprosthesis versus Mechanical Valve Heart Prosthesis: Assessment of Quality of Life(2020) MOLERO JUNIOR, José Carlos; RAIMUNDO,, Rodrigo Daminello; AMARAL, Joice Anaize Tonon do; ABREU, Luiz Carlos de; BREDA, João RobertoAbstract Background: The aim of this study was to evaluate the QoL of patients undergoing heart valve replacement using the SF-36 questionnaire, compare it between patients with mechanical prosthesis and patients with bioprosthesis, and correlate the results with sociodemographic variables. Objective: To assess the QoL of patients undergoing heart valve replacement and compare it between patients with bioprosthetic valves and patients with mechanical prosthetic valves. Methods: We included 36 consecutive patients (16 men) with a mean age of 51 years and six months, who underwent mitral or aortic valve replacement from September 2007 to December 2011. The study was conducted between March and May 2012 and involved the application of the SF-36 survey and a sociodemographic questionnaire. Statistical tests were performed, and data are expressed as absolute frequency and percentile, and median and interquartile range (P25 and P75) (Mann-Whitney test), considering a significance of 95%. Results: The average time of surgery was 32.5 months (8-61 months). Participants were asked about the practice of physical activity, and 41.7% were physically active. For the SF-36 domains, the highest scores were observed for the social domain whereas the lowest scores were found for mental health, with a mean of 89.25 and 54.44, respectively. In the statistical analysis, we found statistically higher values in emotional functional for patients with mechanical valve prosthesis (p = 0.0084). Conclusion: The QoL of the patients undergoing heart valve replacement improves considerably after the surgery, except for the mental health domain, probably due to the low practice of physical activity. The type of prosthesis seems not to influence the QoL or the patients in the late postoperative period.
bookPart 0 Citação(ões) na Scopus Acute effects of musical auditory stimulation on heart rate dynamics(2017) AMARAL, J. A. T. do; GARNER, D. M.; ABREU, L. C. de; VALENTI, V. E.In this chapter, we will describe recent studies that have investigated the acute influence of musical auditory stimulus on autonomic heart rate control. Searches were performed on Medline, SciELO, Lilacs and Cochrane databases using cross referencing between the keywords: “auditory stimulation,” “autonomic nervous system,” “music” and “heart rate variability.” We will present classical and recent experimental studies on humans and rats that investigated the acute effects of specific music on autonomic nervous system. For example, one of the selected studies indicated that there is a strong correlation between noise intensity and vagal-sympathetic balance. Likewise, it was conveyed that musical therapy improved heart rate variability in anthracycline-treated breast cancer patients. It was hypothesized that the release of dopamine in the striatal system induced by pleasurable songs are involved in the cardiac autonomic regulation. This chapter proposes to explore how music can be used as a complementary therapy. © 2017 Nova Science Publishers, Inc.- Energy Drink before Exercise Did Not Affect Autonomic Recovery Following Moderate Aerobic Exercise: A Crossover, Randomized and Controlled Trial(2021) PORTO, Andrey Alves; VALENTI, Vitor E.; AMARAL, Joice Anaize Tonon do; BENJAMIM, Cicero Jonas R.; GARNER, David M.; FERREIRA, CelsoIntroduction: Energy drink (ED) intake could initiate physiological changes owing to its stimulant characteristics and, it improves endurance and athletic performance. We evaluated the acute effects of ED on autonomic heart rate (HR) control during recovery after a session of submaximal aerobic exercise. Method: The study was completed by submitting 29 healthy males between 18 and 30 years old to three conventions: (A) Maximum exercise test by the adapted Bruce protocol; (B) Placebo protocol (PP) - water intake 15 minutes prior to exercise, rest in dorsal decubitus for 15 minutes followed by 5 minutes of treadmill running at 1% inclination, initial speed of 5 km/h for 5 minutes 25 minutes with 60% of the velocity consistent to the maximum oxygen consumption (VO2max), and finally 60 minutes of recovery at rest in the supine position; (C) Experimental protocol (PE) - similar to PP previously, but with ED intake 15 minutes before physical exercise. The time, frequency and geometric indexes of HR variability (HRV) were inspected before and after exercise. Results: There was a significant (p < 0.05, <5%) effect on the HRV index (HR-nu and ms(2), LF-nu and ms(2), LF/HF, SD1, SDNN and RMSSD), indicating a reduction in HRV in the first 5 minutes after exercise in both protocols (PP and PE). Yet, no protocol interaction was detected, suggesting no effect of ED on HRV throughout recovery after submaximal aerobic exercise. Conclusion: There was no significant effect of ED on the autonomic control of HR in the recovery phase after submaximal aerobic exercise.
- Non-Alcoholic Cirrhosis and Heart Rate Variability: A Systematic Mini-Review(2020) AMARAL, Joice Anaize Tonon do; SALATINI, Renata; ARAB, Claudia; ABREU, Luiz Carlos; VALENTI, Vitor E.; MONTEIRO, Carlos B. M.; TANNURI, Uenis; TANNURI, Ana Cristina AounBackground and Objectives: Cirrhosis is a liver disease that causes about one million deaths annually worldwide. The estimated cirrhosis prevalence ranges from 4.5-9.5% in the general population. Up to 40% of cirrhotic patients are asymptomatic and may be diagnosed late. Studies have described the importance of the functions of the liver and autonomic nervous system (ANS) and their relationship. There is limited information available on non-alcoholic cirrhosis and heart rate variability (HRV), which is a measure of the ANS. This study aimed to evaluate cardiac autonomic modulation through HRV in non-alcoholic cirrhosis individuals reported in previous observational and clinical trial studies. Materials and Methods: We performed a systematic review according to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) statement using the Medline, Scopus, and Web of Science electronic databases. Five studies were identified and reviewed. Results: HRV was decreased in patients with non-alcoholic cirrhosis, even in the first stage. Conclusions: HRV could be used as a complementary method to improve both the diagnosis and prognosis of non-alcoholic cirrhosis.
- Reduction of heart rate variability in hypertensive elderly(2017) ANDRADE, Paulo Evaristo de; AMARAL, Joice Anaize Tonon do; PAIVA, Laercio da Silva; ADAMI, Fernando; RAIMUDO, Juliana Zangirolami; VALENTI, Vitor Engracia; ABREU, Luiz Carlos de; RAIMUNDO, Rodrigo DaminelloIntroduction: The elderly population grows globally every day, and along with it the incidence of high blood pressure also grows, following these data scientists seek tools to improve the health of this population, a widely used tool for assessing cardiovascular function is the heart rate variability(HRV), that is a mecanism that allows the investigation of oscillations in the intervals between consecutive heart beats (RR intervals). There are already studies on the autonomic nervous system in the elderly population, however, these studies investigated normotensive patients and there is little research in hypertensive patients.Aim: To compare the cardiac autonomic modulation between healthy elderly and hypertensive elderly.Method: The total sample was 80 elderly people- 40 healthy elderly and 40 elderly (HBP). Anthropometric data, HRV analysis and IPAQ questionnaire were collected. For the analysis of cardiac modulation data in the time domain (pNN50, SDNN and RMSSD) and frequency domain (LF and HF). The geometric analysis (RRtri, TINN, SD1, SD2 and SD1/SD2 ratios).Results: In the time domain the MeanRR index presented a HAS increase 832.35104.46ms vs control 782.73 +/- 112.78ms (p=0.040). In the SDNN, there was a 58.35ms decrease vs the SAH 43.15ms (p=0.030). In the frequency domain, HF decreased control 247.00ms2 vs HAS 157.00ms2 (p=0.002). In the geometric, the TINN and SD2 in the HAS group decreased in relation to the control from 203.38 +/- 80.26ms to 161.83 +/- 53.25ms (p=0.018) and from 71.95ms to 59.40ms (p=0.051). The mean SD1/SD2 ratio showed an increase between the Control and SAH groups from 0.22 +/- 0.10 to 4.09 +/- 1.18 and there was a statistical difference (p=0.001).Conclusion: Hypertensive elderly patients present decreased heart rate variability and decreased parasympathetic modulation when compared to normotensive elderly.
- Avocado (Persea americana) pulp improves cardiovascular and autonomic recovery following submaximal running: a crossover, randomized, double-blind and placebo-controlled trial(2020) SOUSA, Fernando H.; VALENTI, Vitor E.; PEREIRA, Leticia C.; BUENO, Rafaela R.; PRATES, Sara; AKIMOTO, Amanda N.; KAVIANI, Mojtaba; GARNER, David M.; AMARAL, Joice A. T.; ABREU, Luiz Carlos dePrevious studies have demonstrated that regular avocado consumption presents advantageous effects on cardiovascular system. However, little attention has been paid to the use of avocado as a dietary supplement, in particular, for individuals involved in physical exercise training. Therefore, this study aims to evaluate the effect of acute avocado pulp intake on cardiovascular and autonomic recovery subsequent to moderate exercise. Using a crossover, randomized, double-blind and placebo-controlled trial design, 16 healthy female adults underwent two protocols: Avocado pulp (600 mg in capsule) and placebo (600 mg starch in capsule). After the ingestion of Avocado pulp or placebo, the subjects were seated for 60 min at rest, followed by running on a treadmill at a submaximal level and then remained seated for 60 min during recovery from the exercise. Heart rate (HR), heart rate variability (HRV) [rMSSD, SD1, HF (ms(2))] and skin conductance were evaluated before and during exercise, as well as during recovery. HR, systolic blood pressure, HRV and skin conductance recovered faster when subjects were given avocado pulp prior to exercise. In conclusion, avocado pulp improved cardiovascular and autonomic recovery after exercise, suggesting a reduced risk of cardiovascular events after exertion. The current results support the beneficial effects of ingestion of avocado prior to submaximal treadmill running.