PAULO JENG CHIAN SUEN
Projetos de Pesquisa
Unidades Organizacionais
LIM/27 - Laboratório de Neurociências, Hospital das Clínicas, Faculdade de Medicina
20 resultados
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- Treatment of mixed depression with theta-burst stimulation (TBS): results from a double-blind, randomized, sham-controlled clinical trial(2021) TAVARES, Diego Freitas; SUEN, Paulo; SANTOS, Carla Garcia Rodrigues dos; MORENO, Doris Hupfeld; VALIENGO, Leandro Da Costa Lane; KLEIN, Izio; BORRIONE, Lucas; FORTE, Pamela Marques; BRUNONI, Andre R.; MORENO, Ricardo AlbertoMixed depression is probably different in terms of clinical course and response to treatment. Repetitive transcranial magnetic stimulation (rTMS) is well established in non-mixed depression, and theta-burst stimulation (TBS) protocol is replacing conventional protocols because of noninferiority and reduced delivery time. However, TBS has not been adequately studied in mixed states. This study was a double-blind, six-week, sham-controlled, and randomized clinical trial of bilateral TBS targeting the right and left dorsolateral prefrontal cortex, respectively. Adults with bipolar and major depressive disorder experiencing an acute mixed depression were eligible if they had not benefited from a first- or second-line treatment for acute unipolar or bipolar depression recommended by the Canadian Network for Mood and Anxiety Treatments. Out of 100 patients included, 90 composed modified intention-to-treat sample, which was patients that completed at least one week of the intervention. There were no significant differences in Montgomery-Asberg depression rating scale score changes (least squares mean difference between groups at week 3, -0.06 [95% CI, - 3.39 to 3.51; P = 0.97] in favor of sham TBS). Response and remission rates per MADRS were also not statistically different among active and sham groups (35.7% vs. 43.7%, and 28.5% vs. 37.5% respectively at week 6, ps > 0.51). No other analyses from baseline to weeks 3 or 6 revealed significant time x group interaction or mean differences among groups in the mITT sample. Bilateral TBS targeting the DLPFC is not efficacious as an add-on treatment of acute bipolar and unipolar mixed depression. ClinicalTrials.govIdentifier: NCT04123301
- A study protocol for an ongoing multi-arm, randomized, double-blind, sham-controlled clinical trial with digital features, using portable transcranial electrical stimulation and internet-based behavioral therapy for major depression disorders: The PSYLECT study(2022) BORRIONE, Lucas; CIRILLO, Patricia C.; APARICIO, Luana V. M.; CAVENDISH, Beatriz A.; VALIENGO, Leandro; MOURA, Darin O.; SOUZA, Juliana P. de; LUETHI, Matthias S.; KLEIN, Izio; BARIANI, Bruna; GALLUCCI-NETO, Jose; SUEN, Paulo; PADBERG, Frank; GOERIGK, Stephan; VANDERHASSELT, Marie-Anne; DENG, Zhi De; O'SHEA, Jacinta; LOTUFO, Paulo A.; BENSENOR, Isabela M.; BRUNONI, Andre R.Background Transcranial electrical stimulation (tES) is considered effective and safe for depression, albeit modestly, and prone to logistical burdens when performed in external facilities. Investigation of portable tES (ptES), and potentiation of ptES with remote psychological interventions have shown positive, but preliminary, results. Research design We report the rationale and design of an ongoing multi-arm, randomized, double-blind, sham-controlled clinical trial with digital features, using ptES and internet-based behavioral therapy (iBT) for major depressive disorder (MDD) (NCT04889976). Methods We will evaluate the efficacy, safety, tolerability and usability of (1) active ptES + active iBT ('double-active'), (2) active ptES + sham iBT ('ptES-only'), and (3) sham ptES + sham iBT ('double-sham'), in adults with MDD, with a Hamilton Depression Rating Scale - 17 item version (HDRS-17) score >= 17 at baseline, during 6 weeks. Antidepressants are allowed in stable doses during the trial. Results We primarily co-hypothesize changes in HDRS-17 will be greater in (1) 'double-active' compared to 'ptES-only,' (2) 'double-active' compared to 'double-sham,' and (3) 'ptES-only' compared to 'double-sham.' We aim to enroll 210 patients (70 per arm). Conclusions Our results should offer new insights regarding the efficacy and scalability of combined ptES and iBT for MDD, in digital mental health.
conferenceObject Prevalence of psychiatric symptoms and diagnoses during the COVID-19 pandemic in Sao Paulo: Findings from the ELSA-Brasil COVID-19 mental health cohort(2021) BRUNONI, Andre; LOTUFO, Paulo; SUEN, Paulo; BACCHI, Pedro; KLEIN, Izio; RAZZA, Lais; SANTOS, Leonardo dos; BENSENOR, Isabela- The Effects of Transcranial Direct Current Stimulation in Obsessive-Compulsive Disorder Symptoms: A Meta-Analysis and Integrated Electric Fields Modeling Analysis(2023) PINTO, Bianca Silva; CAVENDISH, Beatriz Araujo; SILVA, Pedro Henrique Rodrigues da; SUEN, Paulo Jeng Chian; MARINHO, Kalian Almeida Pereira; VALIENGO, Leandro da Costa Lane; VANDERHASSELT, Marie-Anne; BRUNONI, Andre Russowsky; RAZZA, Lais BoralliTranscranial direct current stimulation (tDCS) has been showing promising effects for the treatment of obsessive-compulsive disorder (OCD), but there is still no conclusion on its efficacy for this disorder. We performed a systematic review and meta-analysis of trials using tDCS for OCD and a computer modeling analysis to evaluate the electric field (EF) strengths of different electrode assemblies in brain regions of interest (ROIs) (PROSPERO-42021262465). PubMed/MEDLINE, Embase, Cochrane Library and Web of Science databases were searched from inception to 25 September 2022. Randomized controlled trials (RCTs) and open-label studies were included. The primary aim was the effect size (Hedges' g) of continuous outcomes and potential moderators of response. For EF modeling, SimNIBS software was used. Four RCTs and four open-label trials were included (n = 241). Results revealed a large effect of tDCS in the endpoint, but no significant effect between active and sham protocols. No predictor of response was found. EF analysis revealed that montages using the main electrode over the (pre)supplementary motor area with an extracephalic reference electrode might lead to stronger EFs in the predefined ROIs. Our results revealed that tDCS might be a promising intervention to treat OCD; however, larger studies are warranted.
- Prefrontal resting-state connectivity and antidepressant response: no associations in the ELECT-TDCS trial(2021) BULUBAS, Lucia; PADBERG, Frank; MEZGER, Eva; SUEN, Paulo; BUENO, Priscila V.; DURAN, Fabio; BUSATTO, Geraldo; JR, Edson Amaro; BENSENOR, Isabela M.; LOTUFO, Paulo A.; GOERIGK, Stephan; GATTAZ, Wagner; KEESER, Daniel; BRUNONI, Andre R.Functional and structural MRI of prefrontal cortex (PFC) may provide putative biomarkers for predicting the treatment response to transcranial direct current stimulation (tDCS) in depression. A recent MRI study from ELECT-TDCS (Escitalopram versus Electrical Direct-Current Theror Depression Study) showed that depression improvement after tDCS was associated with gray matter volumes of PFC subregions. Based thereon, we investigated whether antidepressant effects of tDCS are similarly associated with baseline resting-state functional connectivity (rsFC). A subgroup of 51 patients underwent baseline rsFC-MRI. All patients of ELECT-TDCS were randomized to three treatment arms for 10 weeks (anodal-left, cathodal-right PFC tDCS plus placebo medication; escitalopram 10 mg/day for 3 weeks and 20 mg/day thereafter plus sham tDCS; and placebo medication plus sham tDCS). RsFC was calculated for various PFC regions and analyzed in relation to the individual antidepressant response. There was no significant association between baseline PFC connectivity of essential structural regions, nor any other PFC regions (after correction for multiple comparisons) and patients' individual antidepressant response. This study did not reveal an association between antidepressants effects of tDCS and baseline rsFC, unlike the gray matter volume findings. Thus, the antidepressant effects of tDCS may be differentially related to structural and functional MRI measurements.
- Distractibility, anxiety, irritability, and agitation symptoms are associated with the severity of depressive and manic symptoms in mixed depression(2022) TAVARES, Diego Freitas; SUEN, Paulo; MORENO, Doris Hupfeld; VIETA, Eduard; MORENO, Ricardo Alberto; BRUNONI, Andre R.Objective: To explore whether there is an association between distractibility, anxiety, irritability, and agitation (DAIA) symptoms and the severity of depressive and manic symptoms. Methods: Patients with unipolar and bipolar disorder (I and II) and mixed depression were evaluated. DAIA symptoms were assessed using previously described definitions. Results: The full analysis set comprised 100 patients. The severity of depressive symptoms in mixed depression, assessed by Montgomery-Asberg Depression Rating Scale (MADRS), was significantly associated with the presence of two or more DAIA symptoms in the bipolar sample, influenced mainly by anxiety. The severity of manic symptoms in mixed depression, assessed by Young Mania Rating Scale (YMRS), was significantly associated with the presence of two or more DAIA symptoms in the bipolar sample and three or four DAIA symptoms in the unipolar sample. Conclusion: DAIA symptoms were associated with greater severity of manic symptoms in mixed depression. DAIA symptoms must be evaluated in all patients with mixed features and are associated with the severity of depressive and manic symptoms in mixed depression.
- The Flow brain stimulation headset for the treatment of depression: overview of its safety, efficacy and portable design(2020) BORRIONE, Lucas; SUEN, Paulo J. C.; RAZZA, Lais B.; SANTOS, Leonardo Afonso Dos; SUDBRACK-OLIVEIRA, Pedro; BRUNONI, Andre R.Introduction Major depressive disorder (MDD) is a prevalent and debilitating condition. First-line treatments include antidepressants and cognitive-behavioral psychotherapy (CBT). However, several patients present treatment-resistance and/or adverse effects. Transcranial direct current stimulation (tDCS), a noninvasive neuromodulation technique, is an effective alternative for MDD. Areas covered We hereby review a portable tDCS device designed to be combined with a cognitive-behavioral intervention. This home-use device was developed by Flow Neuroscience (TM) and was recently approved in the UK and European Union. We discuss present evidence on tDCS efficacy and safety, both as a monotherapy and as a combined treatment. Moreover, we show a computer modeling tDCS procedure based on Flow parameters and montage. Expert opinion Electric field simulations revealed that Flow's tDCS device targets prefrontal cortical areas involved in MDD pathophysiology. In addition, the safety and efficacy profile revealed from prior tDCS studies support its use in depression. Finally, combining tDCS with cognitive-behavioral interventions might further enhance overall efficacy, although this aspect should be investigated in upcoming randomized, placebo-controlled trials.
- Trajectories of common mental disorders symptoms before and during the COVID-19 pandemic: findings from the ELSA-Brasil COVID-19 Mental Health Cohort(2022) FATORI, Daniel; SUEN, Paulo; BACCHI, Pedro; AFONSO, Leonardo; KLEIN, Izio; CAVENDISH, Beatriz A.; LEE, Younga H.; LIU, Zhaowen; BAUERMEISTER, Joshua; MORENO, Marina L.; VIANA, Maria Carmen; GOULART, Alessandra C.; SANTOS, Itamar S.; BAUERMEISTER, Sarah; SMOLLER, Jordan; LOTUFO, Paulo; BENSENOR, Isabela M.; BRUNONI, Andre R.Aim Evidence indicates most people were resilient to the impact of the COVID-19 pandemic on mental health. However, evidence also suggests the pandemic effect on mental health may be heterogeneous. Therefore, we aimed to identify groups of trajectories of common mental disorders' (CMD) symptoms assessed before (2017-19) and during the COVID-19 pandemic (2020-2021), and to investigate predictors of trajectories. Methods We assessed 2,705 participants of the ELSA-Brasil COVID-19 Mental Health Cohort study who reported Clinical Interview Scheduled-Revised (CIS-R) data in 2017-19 and Depression Anxiety Stress Scale-21 (DASS-21) data in May-July 2020, July-September 2020, October-December 2020, and April-June 2021. We used an equi-percentile approach to link the CIS-R total score in 2017-19 with the DASS-21 total score. Group-based trajectory modeling was used to identify CMD trajectories and adjusted multinomial logistic regression was used to investigate predictors of trajectories. Results Six groups of CMD symptoms trajectories were identified: low symptoms (17.6%), low-decreasing symptoms (13.7%), low-increasing symptoms (23.9%), moderate-decreasing symptoms (16.8%), low-increasing symptoms (23.3%), severe-decreasing symptoms (4.7%). The severe-decreasing trajectory was characterized by age < 60 years, female sex, low family income, sedentary behavior, previous mental disorders, and the experience of adverse events in life. Limitations Pre-pandemic characteristics were associated with lack of response to assessments. Our occupational cohort sample is not representative. Conclusion More than half of the sample presented low levels of CMD symptoms. Predictors of trajectories could be used to detect individuals at-risk for presenting CMD symptoms in the context of global adverse events.
- Social Isolation, Hospitalization, and Deaths from Cardiovascular Diseases during the COVID-19 Epidemic in Sao Paulo Metropolitan Area in 2020(2022) LIMA, Lucas Rodrigues de; PONTE, Paulo Francisco Auricchio da; DIAS, Lucca Novais; SILVESTRE, Marcelo Henrique Lima; SUEN, Paulo Jeng Chian; MANSUR, Antonio de PaduaBackground: The COVID-19 epidemic overloaded the Sao Paulo metropolitan area (SPMA) health system in 2020. The leading hospitals directed their attention to patients with COVID-19. At the same time, the SPMA Health Secretary decreed social isolation (SI), which compromised the care for cardiovascular diseases (CVD), even though higher cardiovascular events were expected. Methods: This study analyzed mortality from CVD, ischemic heart disease (IHD), and stroke, along with hospital admissions for CVD, IHD, stroke, and SI in the SPMA in 2020. Data regarding hospitalization and mortality from CVD were obtained from the SPMA Health Department, and data regarding SI was obtained from the Sao Paulo Intelligent Monitoring System. Time-series trends were analyzed by linear regression, as well as comparisons between these trends. Results: there was an inverse correlation between SI and hospitalizations for CVD (R-2 = 0.70; p < 0.001), IHD (R-2 = 0.70; p < 0.001), and stroke (R-2 = 0.39; p < 0.001). The most significant hospitalization reduction was from March to May, when the SI increased from 43.07% to 50.71%. The increase in SI was also associated with a reduction in CVD deaths (R-2 = 0.49; p < 0.001), IHD (R-2 = 0.50; p < 0.001), and stroke (R-2 = 0.26; p < 0.001). Conclusions: Increased social isolation was associated with reduced hospitalizations and deaths from CVD, IHD, and stroke.
- Drug use among medical students in São Paulo, Brazil: a cross-sectional study during the coronavirus disease 2019 pandemic(2024) LEMOS-SANTOS, Pedro; BLUMRICH, Lukas; DEBIA, Jordi Blanes; CASTALDELLI-MAIA, Joao Mauricio; SUEN, Paulo Jeng Chian; MALBERGIER, AndreBACKGROUND: Medical students demonstrate higher rates of substance use than other university students and the general population. The challenges imposed by the coronavirus disease 2019 (COVID-19) pandemic raised significant concerns about mental health and substance use.OBJECTIVES: Assess the current prevalence of substance use among medical students at the University of Sao Paulo and evaluate the impact of the COVID-19 pandemic on drug consumption.DESIGN AND SETTING: A cross-sectional study was conducted on 275 medical students from the UniverMETHODS: Substance use (lifetime, previous 12 months, and frequency of use before and during the COVID-19 pandemic) and socioeconomic data were assessed using an online self-administered questionnaire. Symptoms of depression were assessed using the Patient Health Questionnaire-9. RESULTS: Alcohol was the most consumed substance in their lifetime (95.6%), followed by illicit drugs (61.1%), marijuana (60%), and tobacco (57.5%). The most commonly consumed substances in the previous year were alcohol (82.9%), illicit drugs (44.7%), marijuana (42.5%), and tobacco (36%). Students in the first two academic years consumed fewer substances than those from higher years. There was a decreasing trend in the prevalence of most substances used after the COVID-19 pandemic among sporadic users. However, frequent users maintained their drug use patterns.CONCLUSION: The prevalence of substance use was high in this population and increased from the basic to the clinical cycle. The COVID-19 pandemic may have affected the frequency of drug use and prevalence estimates.