The impact of patients with generalized anxiety disorder in the Brazilian Private Healthcare System: a claim database study with expert's perspective / O impacto de pacientes com transtorno de ansiedade generalizada no Sistema Único de Saúde: um estudo de base de sinistros com a perspectiva de especialistas

This study describes the healthcare resource use and costs associated with anxiety assessing claim database outcomes and expert opinion from the perspective of the Brazilian Private Healthcare System. A retrospective analysis of the Orizon database was conducted, containing claims data of anxiety patients reported in Private Healthcare Systems (2015-2017) according to the ICD-10 code (F40 or F41 and their subtypes). Further, a 3-hour online meeting brought together five anxiety and Health Insurance Companies experts to discuss their perspectives. The total cost of the 18,069 patients identified in the database was BRL 490 million: related to medical appointments (2%), exams (16%), emergency room (5%), and others (77%). The mean number of appointments was 5.1 in a 4-year period, performed by 61% of the patients. Approximately 2,595 visits were made to psychiatrists by 923 patients, and 95% underwent at least one examination (100.6 examinations per patient, on average). The identification of anxiety patients and their corresponding burden is challenging to estimate. The higher impact is related to the frequency of healthcare use before the diagnosis than the treatment itself. These outcomes may help plan and implement adequate healthcare programs for patients with anxiety.

Este estudo descreve o uso de recursos de saúde e os custos relacionados à ansiedade associando resultados de uma base de dados administrativa e opinião de especialistas na perspectiva do Sistema Privado de Saúde Brasileiro. Foi realizada uma análise retrospectiva da base de dados da Orizon de pacientes com ansiedade em atendimento hospitalizar ou ambulatorial no Sistema Privado de Saúde (2015 - 2017) com o código CID-10 (F40 ou F41 e os seus subtipos), adicionalmente promovemos uma reunião online de 3 horas com cinco especialistas em ansiedade e em seguros de saúde para discutir as suas perspectivas. O custo total dos 18.069 pacientes identificados no banco de dados foi de R$ 490 milhões, relacionados a consultas médicas (2%), exames (16%), pronto-socorro (5%) e outros (77%). A média de consultas foi de 5,1 em um período de 4 anos, realizadas por 61% dos pacientes. Aproximadamente 2.595 visitas foram feitas a psiquiatras por 923 pacientes, e 95% realizaram pelo menos um exame (média de 100,6 exames por paciente. É desafiador identificar e estimar o impacto da doença no Sistema Privado de Saúde Brasileiro. O impacto maior está relacionado à frequência de uso de serviços de saúde antes do diagnóstico, em comparação com o próprio tratamento. Esses resultados podem ajudar a planejar e implementar programas de saúde adequados para pacientes com ansiedade.

The impact of depression in the Brazilian private healthcare system: patient journey and economic burden study associating claim database and expert's opinion approach / O impacto da depressão no sistema de saúde privado brasileiro: estudo da jornada do paciente e da carga econômica associando banco de dados de sinistros e abordagem de opinião de especialistas

Objective: The study aimed to describe the profile and economic burden of patients with depression from the perspective of the Brazilian Private Healthcare System (PHS). Methods: A two-step methodological quantitative-qualitative research design was performed: retrospective descriptive analysis of the Orizon database of patients with at least one claim of depression (F33, F38, or F39) in PHS (2013-2019) and experienced physicians perspective from an expert meeting. Results: 1,802 patients fulfilling the eligibility criteria counted BRL 74,978 million across the 4-year period. Over this period, nearly 60% of patients had a medical appointment (6.6 appointments per patient, on average), 61% had a psychologist, 9.8% had a psychiatrist appointment, and an average of 115.2 exams and 8.7 emergency visits per patient were performed. According to the experts, the economic impact of depression is more significant when considering the indirect costs related to productivity loss and impairment in occupational and interpersonal functioning. Conclusion: Identifying and diagnosing patients with depression and their real burden is challenging; even with significant costs identified in the claim database analyses in the Brazilian PHS, the real impact must be higher if indirect costs are considered. The depressive disorder should be prioritized in the Brazilian PHS to establish more adequate health policies.

Objetivo: O estudo teve como objetivo descrever o perfil e a carga econômica de pacientes com depressão na perspectiva do Sistema Único de Saúde (SUS). Métodos: Foi realizado um projeto de pesquisa quantitativo-qualitativo metodológico em duas etapas: análise descritiva retrospectiva do banco de dados Orizon de pacientes com pelo menos uma alegação de depressão (F33, F38 ou F39) no PHS (2013- 2019) e perspectiva de médicos experientes de uma reunião de especialistas. Resultados: 1.802 pacientes que preencheram os critérios de elegibilidade totalizaram R$ 74,978 milhões no período de 4 anos. Nesse período, cerca de 60% dos pacientes tiveram consulta médica (6,6 consultas por paciente, em média), 61% tiveram psicólogo, 9,8% consulta com psiquiatra e foram realizados em média 115,2 exames e 8,7 atendimentos de emergência por paciente . Segundo os especialistas, o impacto econômico da depressão é mais significativo quando considerados os custos indiretos relacionados à perda de produtividade e prejuízo no funcionamento ocupacional e interpessoal. Conclusão: Identificar e diagnosticar pacientes com depressão e sua real carga é desafiador; mesmo com custos significativos identificados nas análises da base de sinistros do SUS brasileiro, o impacto real deve ser maior se considerados os custos indiretos. O transtorno depressivo deve ser priorizado na APS brasileira para o estabelecimento de políticas de saúde mais adequadas.

Chronic pain patients in the Brazilian private healthcare system: a claim database study with the experts' perspective / Pacientes com dor crônica no sistema de saúde suplementar brasileiro: um estudo de banco de dados com a perspectiva dos especialistas

Objective: This study aimed to describe the demands and costs from chronic pain patients over the private Brazilian healthcare system. Methods: This was a retrospective claim database study to assess the resource utilization of pain patients in the private setting. We used a four-year follow-up period to assess inpatient, outpatient, and procedures reported. Further, we promoted a forum of discussion with five pain experts and healthcare managers to address the management of chronic pain and assistance models.Results: We identified 79,689 patients with chronic pain. The orthopedist was the main medical specialist consulted with a total number of 38,879 visits performed. The ophthalmologist, cardiologist, gynecologist, and general practitioner were also frequently consulted (rheumatologist was seldom consulted). Among non-medical specialists, the physical therapist was consulted 87,574 times by 12,342 patients (15% of the entire cohort), Among chronic pain patients, 96% performed at least one exam and 86% of the patients presented at least one ER visit during the follow-up period. In 4 years, we estimate that pain patients costed more than 3 billion reais to the private health care system. According to the experts' opinions, a fragmented healthcare system and the lack of patient centered interdisciplinary approaches contributes to a high ineffective pain management leading to a high use of resources. Conclusion: There is an urgent need to change the chronic pain care model in the Brazilian private setting. Qualification in pain management, a multidisciplinary patient centered care, integrated approaches, pain centers, and patients' education may help changing this scenario.

Objetivo: O objetivo do estudo foi descrever as demandas e custos dos pacientes com dor crônica no sistema privado de saúde brasileiro. Métodos: Neste estudo retrospectivo do banco de dados administrativo, avaliamos a utilização de recursos de pacientes com dor no ambiente privado. Em um período de quatro anos, avaliamos internações, visitas ambulatoriais e procedimentos. Adicionalmente, promovemos um fórum de discussão com cinco especialistas em dor e gerentes de saúde para abordar o manejo da dor e os modelos de assistência. Resultados: Identificamos 79.689 pacientes com dor crônica. O ortopedista foi o principal especialista médico consultado, com 38.879 visitas realizadas. O oftalmologista, o cardiologista, o ginecologista e o clínico geral também foram consultados com frequência (o reumatologista foi raramente consultado). Entre os especialistas não médicos, o fisioterapeuta foi consultado 87.574 vezes por 12.342 pacientes (15% de toda a coorte). Entre os pacientes, 96% realizaram pelo menos um exame e 86% apresentaram pelo menos uma consulta de emergência durante o período. Em 4 anos, estimamos um custo de mais de 3 bilhões de reais para o sistema privado de saúde. De acordo com as opiniões dos especialistas, um sistema de saúde fragmentado e a falta de abordagens centradas no paciente contribuem para um manejo ineficaz da dor, resultando em um alto uso de recursos. Conclusão: Há necessidade de mudar o modelo de manejo da dor crônica no sistema privado brasileiro. Qualificação dos profissionais, atendimento multidisciplinar centrado no paciente, abordagens integradas, centros de dor e educação dos pacientes podem ajudar a mudar esse cenário.

A Prediction Algorithm for Drug Response in Patients with Mesial Temporal Lobe Epilepsy Based on Clinical and Genetic Information.

Mesial temporal lobe epilepsy is the most common form of adult epilepsy in surgical series. Currently, the only characteristic used to predict poor response to clinical treatment in this syndrome is the presence of hippocampal sclerosis. Single nucleotide polymorphisms (SNPs) located in genes encoding drug transporter and metabolism proteins could influence response to therapy. Therefore, we aimed to evaluate whether combining information from clinical variables as well as SNPs in candidate genes could improve the accuracy of predicting response to drug therapy in patients with mesial temporal lobe epilepsy. For this, we divided 237 patients into two groups: 75 responsive and 162 refractory to antiepileptic drug therapy. We genotyped 119 SNPs in ABCB1, ABCC2, CYP1A1, CYP1A2, CYP1B1, CYP2C9, CYP2C19, CYP2D6, CYP2E1, CYP3A4, and CYP3A5 genes. We used 98 additional SNPs to evaluate population stratification. We assessed a first scenario using only clinical variables and a second one including SNP information. The random forests algorithm combined with leave-one-out cross-validation was used to identify the best predictive model in each scenario and compared their accuracies using the area under the curve statistic. Additionally, we built a variable importance plot to present the set of most relevant predictors on the best model. The selected best model included the presence of hippocampal sclerosis and 56 SNPs. Furthermore, including SNPs in the model improved accuracy from 0.4568 to 0.8177. Our findings suggest that adding genetic information provided by SNPs, located on drug transport and metabolism genes, can improve the accuracy for predicting which patients with mesial temporal lobe epilepsy are likely to be refractory to drug treatment, making it possible to identify patients who may benefit from epilepsy surgery sooner.

Pattern changes of EEG oscillations and BOLD signals associated with temporal lobe epilepsy as revealed by a working memory task.

BACKGROUND: It is known that the abnormal neural activity in epilepsy may be associated to the reorganization of neural circuits and brain plasticity in various ways. On that basis, we hypothesized that changes in neuronal circuitry due to epilepsy could lead to measurable variations in patterns of both EEG and BOLD signals in patients performing some cognitive task as compared to what would be obtained in normal condition. Thus, the aim of this study was to compare the cerebral areas involved in EEG oscillations versus fMRI signal patterns during a working memory (WM) task in normal controls and patients with refractory mesial temporal lobe epilepsy (MTLE) associated with hippocampal sclerosis (HS). The study included six patients with left MTLE-HS (left-HS group) and seven normal controls (control group) matched to the patients by age and educational level, both groups undergoing a blocked design paradigm based on Sternberg test during separated EEG and fMRI sessions. This test consisted of encoding and maintenance of a variable number of consonant letters on WM. RESULTS: EEG analysis for the encoding period revealed the presence of theta and alpha oscillations in the frontal and parietal areas, respectively. Likewise, fMRI showed the co-occurrence of positive and negative BOLD signals in both brain regions. As for the maintenance period, whereas EEG analysis revealed disappearance of theta oscillation, fMRI showed decrease of positive BOLD in frontal area and increase of negative BOLD in the posterior part of the brain. CONCLUSIONS: Generally speaking, these patterns of electrophysiological and hemodynamic signals were observed for both control and left-HS groups. However, the data also revealed remarkable differences between these groups that are consistent with the hypothesis of reorganization of brain circuitry associated with epilepsy.

Asymmetrical hippocampal connectivity in mesial temporal lobe epilepsy: evidence from resting state fMRI.

BACKGROUND: Mesial temporal lobe epilepsy (MTLE), the most common type of focal epilepsy in adults, is often caused by hippocampal sclerosis (HS). Patients with HS usually present memory dysfunction, which is material-specific according to the hemisphere involved and has been correlated to the degree of HS as measured by postoperative histopathology as well as by the degree of hippocampal atrophy on magnetic resonance imaging (MRI). Verbal memory is mostly affected by left-sided HS, whereas visuo-spatial memory is more affected by right HS. Some of these impairments may be related to abnormalities of the network in which individual hippocampus takes part. Functional connectivity can play an important role to understand how the hippocampi interact with other brain areas. It can be estimated via functional Magnetic Resonance Imaging (fMRI) resting state experiments by evaluating patterns of functional networks. In this study, we investigated the functional connectivity patterns of 9 control subjects, 9 patients with right MTLE and 9 patients with left MTLE. RESULTS: We detected differences in functional connectivity within and between hippocampi in patients with unilateral MTLE associated with ipsilateral HS by resting state fMRI. Functional connectivity resulted to be more impaired ipsilateral to the seizure focus in both patient groups when compared to control subjects. This effect was even more pronounced for the left MTLE group. CONCLUSIONS: The findings presented here suggest that left HS causes more reduction of functional connectivity than right HS in subjects with left hemisphere dominance for language.

Proton MRS may predict AED response in patients with TLE.

PURPOSE: To compare relative N-acetylaspartate (NAA) measurements in temporal lobe epilepsy (TLE) patients with good response to the first trial of antiepileptic drugs (AEDs) (an important prognostic factor) to TLE patients who failed the first AED monotherapy and required further AED trials with monotherapy or polytherapy. METHODS: We studied 25 consecutive TLE patients who responded to first AED (responders) and 21 who did not (failure-group), as well as 27 controls. Patients were seen regularly in our Epilepsy Service and underwent electroencephalography (EEG) investigation, high-resolution magnetic resonance imaging (MRI), and single-voxel proton MR spectroscopy. Voxels were tailored to the medial temporal region on each side and involved the anterior hippocampus. RESULTS: Analysis of variance (ANOVA) demonstrated significant variation of NAA/creatine (NAA/Cr) values in both hippocampi, ipsilateral and contralateral to the EEG focus (p < 0.001 and p = 0.021) across the groups. Pairwise post hoc comparisons showed reduced NAA/Cr in both hippocampi of failure-group compared to controls (p < 0.001) and compared to responders (p < 0.05), but not between the controls and responders. Individual analyses showed NAA/Cr ratios lower than 2 SDs (standard deviations) below the mean of controls in 9 of 21 patients (42.8%) in the failure-group (6 with unilateral and 3 with bilateral reduction) but in none of the responders. DISCUSSION: These results indicate that patients with TLE who respond well to the first AED have significantly less evidence of neuronal and axonal damage/dysfunction compared to those who are refractory to the first AED trial.

Avaliação pré-cirúrgica de epilepsia neocortical de lobo temporal com utilização de FDG-18F SPECT: relato de caso / Surgical planning with 18F-FDG SPECT in refractory neocortical temporal lobe epilepsy: case report

INTRODUÇÃO: Muitos portadores de epilepsias parciais não apresentam foco epileptogênico facilmente identificado na investigação com EEG de superfície e ressonância magnética (RM). Nestes casos o uso de técnicas de neuroimagem funcional como a tomografia por emissão de pósitrons (PET) interictal e a tomografia por emissão de fóton único (SPECT) ictal devem ser considerados, visando evitar a colocação de eletrodos profundos em alguns casos ou guiar o posicionamento destes em outros. O exame de PET, no entanto, não é disponível em grande parte dos centros de epilepsia, principalmente por seu alto custo. OBJETIVO: O nosso objetivo é demonstrar que a utilização de FDG-18F SPECT interictal pode ser uma boa alternativa ao uso do PET na localização do foco e planejamento cirúrgico. MATERIAIS E MÉTODOS: Relato de uma paciente com epilepsia parcial de lobo temporal neocortical, refratária a tratamento clínico, com RM normal e EEG ictal sem localização definida do foco epileptogênico. RESULTADOS: Após a extensa investigação pré cirúrgica sem resultados satisfatórios optou-se pela realização de exame de medicina nuclear FDG-18F SPECT interictal. O exame demonstrou hipometabolismo na região anterior das porções mesial e lateral do lobo temporal direito. A paciente foi, então, submetida à ressecção destas áreas e permanece com excelente controle de crises (Engel IB) 24 meses após a cirurgia. CONCLUSÃO: O FDG-18F SPECT pode tornar-se um substituto do PET nos locais onde esta tecnologia não é disponível.

INTRODUCTION: Several patients with partial epilepsies do not present an easily identified epileptogenic focus on scalp EEG or visible lesion on MRI. There are some useful functional neuroimaging techniques that could be considered in these cases, such as interictal positron emission tomography (PET) scan and ictal single-photon emission computed tomography (SPECT). These techniques can guide the placement of deep electrodes or even prevent their use in some situations. Unfortunately, PET scanners are not easily available in a great number of epilepsy centers because of its cost. OBJECTIVE: To demonstrate that 18F-FDG SPECT could be a good alternative replacing PET scan on localization of epileptic focus and surgical planning in places where this technology is not available. MATERIALS AND METHODS: Case report of a patient with refractory neocortical temporal lobe epilepsy, with normal MRI and nuclear EEG localization. RESULTS: The patient was submitted to interictal 18F-FDG SPECT scan, that showed hypometabolism in the anterior, mesial and lateral parts of the right temporal lobe. These areas were surgically resected and the patient outcome after 24 moths has been very good (Engel IB). CONCLUSION: We suggest that in some situations an interictal 18F-FDG SPECT scan could replace 18F-FDG PET scan where this technique is not available.