Independent assessment of the atrial fibrillation - hypertrophic cardiomyopathy score in a brazilian cohort

BACKGROUND: Atrial fibrillation (AF) is a common arrhythmia in hypertrophic cardiomyopathy (HCM), frequently related to adverse outcomes. The AF-HCM point-score is a recently validated predictive model for the assessment of AF risk. OBJECTIVES: We sought to independently evaluate the novel AF-HCM score in a tertiary HCM center cohort in Brazil. METHODS: A longitudinal HCM cohort followed between 2007-2022 was retrospectively stratified for new onset AF, according to the presence of left atrial dimension (+2 points per 6mm increase), age at clinical evaluation (+3 points per 10-year increase), age at HCM diagnosis (-2 points per 10-year increase) and heart failure symptoms (+3 points if symptomatic). The AF-HCM score was classified as low (2,0%/year; score ≥22) for AF development. Cox regression model and Kaplan-Meier survival free from AF were analyzed, P< 0.001]. The intermediate and high-risk groups were associated with developing arrhythmia with a hazard ratio of 56.8 (95% CI 3.4-944.6), P=0.005. The specificity and the negative predictive value were 100%. On the contrary of the previous North-America study population, most patients of the Brazilian cohort were in the high-risk category (37% vs. 52%). CONCLUSION: The AF-HCM score is a reasonable tool for recognizing patients not prone to develop AF among those stratified as low risk in a Brazilian cohort. However, the model was limited to identify intermediate and high risk individuals in contrast to the previously stratified North-American population.

A systematic review of microRNAs in patients with hypertrophic cardiomyopathy.

BACKGROUND: Several microRNAs (miRNA) have been associated with hypertrophic cardiomyopathy (HCM), but studies differ regarding methods employed. In an attempt to understand their role in the disease, we performed a systematic review of studies assessing miRNAs and their association with HCM. METHODS: The literature search was based on The Medical Subject Headings (MeSH) terms "Hypertrophic Cardiomyopathy" and "MicroRNA" combined with other synonyms on Embase, Medline and LILACS databases in April 2020. The selected studies and data extraction were independently evaluated. Only human reports with a clear definition of HCM diagnosis were included. RESULTS: The search found 68 studies, 13 fulfilled the selection criteria, with a total of 329 patients. Eighty-seven miRNA were differentially expressed in HCM patients, being mir-21, mir-29a and mir-133 the most reported. The miRNA were mainly up-regulated, where mir-29a was up-regulated in 6 studies, followed by mir-133 in 4 and mir-21 in 3. The other miRNAs were mainly up-regulated. Blood samples were evaluated in the majority of patients (86%), but a greater number of miRNAs (79%) were assessed in myocardium. Six studies evaluating the phenotype correlation demonstrated that several miRNAs, mainly mir-1-3p, mir-19b, mir-21, mir-29a, mir-155, and mir-221, were related to either hypertrophy or fibrosis. Mir-29a showed a more consistent phenotypic correlation. CONCLUSION: Eighty-seven miRNAs were differentially expressed in HCM patients, the majority in up-regulation. Mir-21, mir-29a and mir-133 were the most reported. Correlation with left ventricular hypertrophy and fibrosis was evaluated in six studies for several miRNAs, nevertheless, mir-29a showed more consistent findings and seems to be a promising biomarker.

Discrepancy between International Guidelines on the Criteria for Primary Prevention of Sudden Cardiac Death in Hypertrophic Cardiomyopathy. / Discordância entre Diretrizes Internacionais sobre Critérios de Prevenção Primária de Morte Súbita na Cardiomiopatia Hipertrófica.

BACKGROUND: Risk stratification for sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) is based on different algorithms proposed by the 2011 ACCF/AHA and 2014 ESC guidelines. OBJECTIVE: To analyze the 2014 ESC model for SCD risk stratification and primary prevention ICD (implantable cardioverter defibrillator) in HCM in comparison to the North American guideline. METHODS: An HCM cohort was evaluated and the ESC HCM-Risk SCD score was calculated. Agreement of ICD recommendations criteria between the two guidelines was analyzed with Kappa coefficient. P<0.05 was adopted for the statistical analysis. RESULTS: In 90 consecutive patients followed for 6±3 years, the mean calculated ESC risk score was 3.2±2.5%. The risk predictors that have mainly contributed to the score calculation in the low (1.88% [1.42-2.67]), intermediate (5.17% [4.89-5.70]) and high-risk (7.82% [7.06-9.19]) categories were: maximal left ventricular wall thickness (1.60% [1.25-2.02]; 3.20% [3.18-3.36]; 4.46% [4.07-5.09]), left atrial diameter (0.97% [0.83-1.21]; 1.86% [1.67-2.40]; 2.48% [2.21-3.51]) and age (-0.91% [0.8-1.13]; -1.90% [1.12-2.03]; -2.34% [1.49-2.73]). The European model decreased the ICD recommendations in 32 (36%) patients. Among the 43 (48%) individuals with class IIa recommendation under the 2011 ACCF/AHA guideline, 8 (18%) were downgraded to class IIb and 24 (56%) to class III. Low agreement was found between the two systems: Kappa=0.355 and p=0.0001. In 8 (9%) patients with SCD or appropriate shock, 4 (50%) met class IIa indication with the 2011 ACCF/AHA guideline, but none achieved this class of recommendation with the 2014 ESC model. CONCLUSION: Low agreement was found between the two strategies. The novel ESC model decreased the ICD recommendations, especially in those with class IIa recommendation, but left unprotected all patients with SCD or appropriate shock. (Arq Bras Cardiol. 2020; 115(2):197-204).

FUNDAMENTO: A estratificação de risco para morte súbita (MS) na cardiomiopatia hipertrófica (CMH) baseia-se em algoritmos distintos propostos pela diretriz norte-americana, ACCF/AHA 2011 e europeia, ESC 2014. OBJETIVO: Analisar o modelo ESC 2014 na determinação do risco de MS e indicação de cardiodesfibrilador implantável (CDI) em prevenção primária na CMH por meio de confrontação com a normativa norte-americana. MÉTODOS: Foi avaliada uma coorte de pacientes com CMH, calculado o escore ESC HCM-Risk-SCD e analisada a concordância dos critérios de indicação de CDI entre as duas diretrizes pelo coeficiente de Kappa. O nível de significância adotado nas análises estatísticas foi de 5%. RESULTADOS: Em 90 pacientes consecutivos, seguidos por 6±3 anos, o escore calculado foi de 3,2±2,5%. Os preditores que mais contribuíram para o cálculo nas faixas de baixo (1,88% [1,42-2,67]), médio (5,17% [4,89-5,70]) e alto risco (7,82% [7,06-9,19]) foram espessura parietal máxima do ventrículo esquerdo (1,60% [1,25-2,02] ; 3,20% [3,18-3,36] ; 4,46% [4,07-5,09]), diâmetro do átrio esquerdo (0,97% [0,83-1,21]; 1,86% [1,67-2,40]; 2,48% [2,21-3,51]) e idade (-0,91% [0,8-1,13]; -1,90% [1,12-2,03]; -2,34% [1,49-2,73]). O modelo europeu reduziu as recomendações de CDI em 32 (36%) pacientes. Entre os 43 (48%) em classe IIa pela ACCF/AHA , 8 (18%) migraram para IIb e 24 (56%) para III. Baixa concordância foi identificada entre as duas sistematizações, Kappa = 0,355, p = 0,0001. Dos 8 (9%) pacientes com MS ou choque apropriado, 4 (50%) atingiram indicação IIa pela ACCF/AHA , mas nenhum pela ESC . CONCLUSÃO: Baixa concordância foi identificada entre as diretrizes analisadas. O novo modelo reduziu as indicações de CDI, notadamente em classe IIa, mas deixou desprotegida a totalidade de pacientes com MS ou choque apropriado. (Arq Bras Cardiol. 2020; 115(2):197-204).

Discordância entre Diretrizes Internacionais sobre Critérios de Prevenção Primária de Morte Súbita na Cardiomiopatia Hipertrófica / Discrepancy between International Guidelines on the Criteria for Primary Prevention of Sudden Cardiac Death in Hypertrophic Cardiomyopathy

Resumo Fundamento A estratificação de risco para morte súbita (MS) na cardiomiopatia hipertrófica (CMH) baseia-se em algoritmos distintos propostos pela diretriz norte-americana, ACCF/AHA 2011 e europeia, ESC 2014. Objetivo Analisar o modelo ESC 2014 na determinação do risco de MS e indicação de cardiodesfibrilador implantável (CDI) em prevenção primária na CMH por meio de confrontação com a normativa norte-americana. Métodos Foi avaliada uma coorte de pacientes com CMH, calculado o escore ESC HCM-Risk-SCD e analisada a concordância dos critérios de indicação de CDI entre as duas diretrizes pelo coeficiente de Kappa. O nível de significância adotado nas análises estatísticas foi de 5%. Resultados Em 90 pacientes consecutivos, seguidos por 6±3 anos, o escore calculado foi de 3,2±2,5%. Os preditores que mais contribuíram para o cálculo nas faixas de baixo (1,88% [1,42-2,67]), médio (5,17% [4,89-5,70]) e alto risco (7,82% [7,06-9,19]) foram espessura parietal máxima do ventrículo esquerdo (1,60% [1,25-2,02] ; 3,20% [3,18-3,36] ; 4,46% [4,07-5,09]), diâmetro do átrio esquerdo (0,97% [0,83-1,21]; 1,86% [1,67-2,40]; 2,48% [2,21-3,51]) e idade (-0,91% [0,8-1,13]; -1,90% [1,12-2,03]; -2,34% [1,49-2,73]). O modelo europeu reduziu as recomendações de CDI em 32 (36%) pacientes. Entre os 43 (48%) em classe IIa pela ACCF/AHA , 8 (18%) migraram para IIb e 24 (56%) para III. Baixa concordância foi identificada entre as duas sistematizações, Kappa = 0,355, p = 0,0001. Dos 8 (9%) pacientes com MS ou choque apropriado, 4 (50%) atingiram indicação IIa pela ACCF/AHA , mas nenhum pela ESC . Conclusão Baixa concordância foi identificada entre as diretrizes analisadas. O novo modelo reduziu as indicações de CDI, notadamente em classe IIa, mas deixou desprotegida a totalidade de pacientes com MS ou choque apropriado. (Arq Bras Cardiol. 2020; 115(2):197-204)

Abstract Background Risk stratification for sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) is based on different algorithms proposed by the 2011 ACCF/AHA and 2014 ESC guidelines. Objective To analyze the 2014 ESC model for SCD risk stratification and primary prevention ICD (implantable cardioverter defibrillator) in HCM in comparison to the North American guideline. Methods An HCM cohort was evaluated and the ESC HCM-Risk SCD score was calculated. Agreement of ICD recommendations criteria between the two guidelines was analyzed with Kappa coefficient. P<0.05 was adopted for the statistical analysis. Results In 90 consecutive patients followed for 6±3 years, the mean calculated ESC risk score was 3.2±2.5%. The risk predictors that have mainly contributed to the score calculation in the low (1.88% [1.42-2.67]), intermediate (5.17% [4.89-5.70]) and high-risk (7.82% [7.06-9.19]) categories were: maximal left ventricular wall thickness (1.60% [1.25-2.02]; 3.20% [3.18-3.36]; 4.46% [4.07-5.09]), left atrial diameter (0.97% [0.83-1.21]; 1.86% [1.67-2.40]; 2.48% [2.21-3.51]) and age (-0.91% [0.8-1.13]; -1.90% [1.12-2.03]; -2.34% [1.49-2.73]). The European model decreased the ICD recommendations in 32 (36%) patients. Among the 43 (48%) individuals with class IIa recommendation under the 2011 ACCF/AHA guideline, 8 (18%) were downgraded to class IIb and 24 (56%) to class III. Low agreement was found between the two systems: Kappa=0.355 and p=0.0001. In 8 (9%) patients with SCD or appropriate shock, 4 (50%) met class IIa indication with the 2011 ACCF/AHA guideline, but none achieved this class of recommendation with the 2014 ESC model. Conclusion Low agreement was found between the two strategies. The novel ESC model decreased the ICD recommendations, especially in those with class IIa recommendation, but left unprotected all patients with SCD or appropriate shock. (Arq Bras Cardiol. 2020; 115(2):197-204)

Prevalence of the NPHS2 variants p.R229Q, p.A242V, and p.R138Q in patients with focal segmental glomerulosclerosis.

BACKGROUND: NPHS2 gene variants are associated with focal segmental glomerulosclerosis (FSGS) and steroid-resistant nephrotic syndrome (SRNS). In this study, the prevalence of NPHS2 variants p.R229Q, p.A242V, and p.R138Q was investigated in patients with familial or sporadic FSGS. MATERIALS AND METHODS: The sample consisted of 40 children and 70 adults diagnosed with FSGS confirmed by renal biopsy. Clinical and laboratory parameters were evaluated. Genotyping for the three single nucleotide polymorphisms (SNPs) was performed by real-time polymerase chain reaction: two variants in exon 5 (p.R229Q and p.A242V) and one in exon 3 (p.R138Q). Variants were correlated with ethnicity, clinical presentation, treatment response, and renal outcomes. RESULTS: Among the 40 children analyzed, 20% had familial and 80% sporadic FSGS and among adults, 4.3% had familial and 95.7% sporadic FSGS, respectively. Overall, SRNS was found in 70% of adults and 90% in children. Among children, variants were detected in 2 (5%) with sporadic FSGS, p.R229Q and p.A242V in 1 each. Among adults, variants were present in 9 (12.9%) patients, all with sporadic FSGS, p.R229Q in 4 and p.A242V in 5. No patient had the p.R138Q variant. Among adults, a trend of higher proteinuria at the end of follow-up (p = 0.06) was found in patients carrying a variant. There was no significant association between NPHS2 variants with the clinical presentation, dependence on immunosuppressive treatment, or renal outcomes. Regarding ethnicity, all patients carrying the p.R229Q variant were White, while 67% of carriers of the p.A242V variant were Black. CONCLUSION: In these patients with familial or sporadic FSGS, the prevalence of p.R229Q and p.A242V variants in children was 5% and in adults 12.9%. More studies of patients with FSGS could better define a strategy for genetic analysis and therapeutic management.

Markers of renal fibrosis: How do they correlate with podocyte damage in glomerular diseases?

BACKGROUND: Renal fibrosis is the result of the interaction of cellular and molecular pathways, which is induced by sustained glomerular injury and involves the podocytes and multiple profibrotic factors. In this study, we investigated the correlation of the mRNA expression of podocyte proteins and profibrotic factors with renal fibrosis measured in renal biopsies of patients with primary and secondary glomerulopathies. METHODS: Eighty-four adult patients with primary or secondary glomerular diseases and 12 controls were included. Demographic and clinical data were collected. Seventy-two percent of the renal biopsies were done less than one year from clinical disease manifestation. The quantification of the podocyte-associated mRNAs of alpha-actinin-4, podocin, and podocalyxin, as well as of the profibrotic factors TGF-ß1, CTGF, and VEGF-A were quantified by real-time polymerase chain reaction. The percent positive area of renal fibrosis was measured by immunohistochemistry staining, using anti-CTGF and anti-HHF35 antibodies and unpolarized Sirius Red. Correlations between the expression of tissue mRNAs and the positive area of fibrosis for the measured markers were made by Spearman's rank correlation coefficient. RESULTS: In relation to control biopsies, podocyte-specific proteins were downregulated in podocytopathies, in proliferative nephritis, in diabetic kidney disease (DRD), and in IgA nephropathy (IgAN). Messenger RNA of TGF-ß1, CTGF, and VEGF-A was upregulated in patients with podocytopathies and in DRD but not in proliferative nephritis and IgAN. Tissue mRNA expression of TGF-ß1, CTGF, and VEGF-A were strongly correlated with renal fibrosis, as measured by HHF35; however, the correlation, albeit significant, was moderate for Sirius Red and weak for CTGF. The percent positive area of renal fibrosis measured by Sirius Red was similar between podocytopathies and DRD and significantly higher in podocytopathies compared to IgAN or proliferative nephritis. CONCLUSIONS: In patients with glomerular diseases, the mRNA of TGF-ß1, CTGF, and VEGF-A correlated positively with the extent of renal fibrosis, and the positive area of fibrosis was larger in the podocytopathies and in DRD as measured by Sirius Red. The pathways connecting podocyte damage and activation of profibrotic factors to kidney tissue fibrosis need to be better investigated.

Predicting factors of postoperative complications in appendectomies. / Fatores preditores de complicações pós-operatórias em apendicectomias.

OBJECTIVE: to evaluate the main risk factors for postoperative complications in patients undergoing appendectomy for acute appendicitis. METHODS: we retrospectively analyzed 1241 patients undergoing open or laparoscopic appendectomy. Patients were allocated to four groups: Group 1, without postoperative complications, and Groups 2, 3, and 4, with postoperative complications defined according to their severity, following Clavien-Dindo classification (I, II, and ≥III, respectively). RESULTS: patients aged ≥38.5 years had more severe complications (p<0.0001). Patients in Group 1, without postoperative complications, had, for the most part, a laparoscopic approach. Groups 2, 3, and 4 underwent, predominantly, to an open surgery (p<0.0001). In cases of acute appendicitis, the odds ratio (OR) for complications was 3.09, 3.04, and 12.41 for Groups 2, 3, and 4, respectively (p<0.0001). Anesthetic risk, duration of the procedure, and length of hospital stay were related to a higher risk and severity of complications. CONCLUSION: the main predicting factors of postoperative complications in patients operated for acute appendicitis were: age ≥38.5 years, conventional or open surgical access, complicated appendicitis, ASA≥2, and surgical time >77 minutes.

OBJECTIVE: avaliar os principais fatores de risco para complicações pós-operatórias em pacientes submetidos à apendicectomia por apendicite aguda. METHODS: foram analisados retrospectivamente 1241 pacientes submetidos à apendicectomia aberta ou laparoscópica. Os pacientes foram alocados em quatro grupos: Grupo 1, sem complicações pós-operatórias, e Grupos 2, 3 e 4, com complicações pós-operatórias, definidas de acordo com sua gravidade, conforme classificação de Clavien-Dindo I, II e ≥III, respectivamente. RESULTS: pacientes com idade ≥38,5 anos tiveram complicações mais graves (p<0,0001). Os pacientes do Grupo 1, sem complicações pós-operatórias, foram predominantemente operados por via laparoscópica. Os Grupos 2, 3 e 4 foram, em sua maior parte, operados por via convencional (p<0,0001). Razão de chances de complicações para apendicite complicada foi de 3,09, 3,04 e 12,41 para os Grupos 2, 3 e 4, respectivamente (p<0,0001). Risco anestésico, duração do procedimento e tempo de internação hospitalar estiveram relacionados com maior risco e gravidade de complicações (p<0,0001). CONCLUSIONS: os principais fatores preditores de complicações pós-operatórias em pacientes operados por apendicite aguda foram: idade ≥38,5 anos, acesso cirúrgico convencional ou aberto, apendicite complicada, ASA≥2 e tempo cirúrgico >77 minutos.

CD117 Expression in Squamous Cell Carcinoma of the Oesophagus.

BACKGROUND/AIM: Identification of changes in specific genes may help new attempts in finding targeted therapy for oesophageal cancer which still has a very poor prognosis. The aim of this study was to investigate CD117 expression in squamous cell carcinoma of the oesophagus (SCCO). MATERIALS AND METHODS: A preliminary study was performed for CD177 immunoreactivity using a monoclonal antibody against CD117 on 27 SCCO specimens from patients who underwent surgical resection. Specimens of oesophageal mucosa obtained from 10 healthy individuals were studied as a control group. RESULTS: Most patients had TNM American Joint Committee on Cancer stage IIb or III SCCO and mean overall survival was 21 (range=2-72) months. Cytoplasmic membrane CD117 immunoreactivity was demonstrated in only four (15%) out of 27 tumours and in none of the controls. CONCLUSION: Although immunohistochemical expression of CD117 was higher than previously demonstrated, the lack of expression does not warranty further use in targeted therapy of SCCO.

Fatores preditores de complicações pós-operatórias em apendicectomias / Predicting factors of postoperative complications in appendectomies

RESUMO Objetivo: avaliar os principais fatores de risco para complicações pós-operatórias em pacientes submetidos à apendicectomia por apendicite aguda. Métodos: foram analisados retrospectivamente 1241 pacientes submetidos à apendicectomia aberta ou laparoscópica. Os pacientes foram alocados em quatro grupos: Grupo 1, sem complicações pós-operatórias, e Grupos 2, 3 e 4, com complicações pós-operatórias, definidas de acordo com sua gravidade, conforme classificação de Clavien-Dindo I, II e ≥III, respectivamente. Resultados: pacientes com idade ≥38,5 anos tiveram complicações mais graves (p<0,0001). Os pacientes do Grupo 1, sem complicações pós-operatórias, foram predominantemente operados por via laparoscópica. Os Grupos 2, 3 e 4 foram, em sua maior parte, operados por via convencional (p<0,0001). Razão de chances de complicações para apendicite complicada foi de 3,09, 3,04 e 12,41 para os Grupos 2, 3 e 4, respectivamente (p<0,0001). Risco anestésico, duração do procedimento e tempo de internação hospitalar estiveram relacionados com maior risco e gravidade de complicações (p<0,0001). Conclusão: os principais fatores preditores de complicações pós-operatórias em pacientes operados por apendicite aguda foram: idade ≥38,5 anos, acesso cirúrgico convencional ou aberto, apendicite complicada, ASA≥2 e tempo cirúrgico >77 minutos.

ABSTRACT Objective: to evaluate the main risk factors for postoperative complications in patients undergoing appendectomy for acute appendicitis. Methods: we retrospectively analyzed 1241 patients undergoing open or laparoscopic appendectomy. Patients were allocated to four groups: Group 1, without postoperative complications, and Groups 2, 3, and 4, with postoperative complications defined according to their severity, following Clavien-Dindo classification (I, II, and ≥III, respectively). Results: patients aged ≥38.5 years had more severe complications (p<0.0001). Patients in Group 1, without postoperative complications, had, for the most part, a laparoscopic approach. Groups 2, 3, and 4 underwent, predominantly, to an open surgery (p<0.0001). In cases of acute appendicitis, the odds ratio (OR) for complications was 3.09, 3.04, and 12.41 for Groups 2, 3, and 4, respectively (p<0.0001). Anesthetic risk, duration of the procedure, and length of hospital stay were related to a higher risk and severity of complications. Conclusion: the main predicting factors of postoperative complications in patients operated for acute appendicitis were: age ≥38.5 years, conventional or open surgical access, complicated appendicitis, ASA≥2, and surgical time >77 minutes.

Hospital waste: can we reduce the environmental impact of a large university hospital?

Introduction: As technology advances, society must reflect on the destination of materials which are no longer needed. Hospital waste requires special attention due to the associated risk of disease transmission and biological accidents. Also, it tends to increase proportionally to the economic development and is associated with increased use of disposable material. The purpose of this study is to analyze the management of hospital waste at the Hospital de Clínicas de Porto Alegre (HCPA) and to evaluate the effectiveness and feasibility of the measures adopted by the institution to mitigate the impact of its waste on the environment. Methods: Observational study with field research. Hospital waste management is divided into generation, disposal, storage and final destination. Results: Between 2010 and 2015, the HCPA produced 21.4 tons of biological and sharps waste, 23,000 liters of chemical waste and 113,9 tons of solid waste per month. The main improvements include the implementation of a inspection of the hospital's waste bins every 2 months, a reduction from 29.42% to 2.79% in the rate of inappropriate disposal of hazardous waste, a 313% increase in investments in staff training, the expansion and adaptation of external areas for temporary storage of hospital waste and the collection of more than 1 ton of waste generated by the local community (sharps, X-ray films, kitchen oil, batteries), as well as the establishment of contracts which will guarantee the appropriate treatment of all types of health care waste. Conclusions: These results demonstrate that mitigating the impact of hospital waste on the environment is possible and should encourage the adoption of similar measures at other institutions (AU)

Compreensão psicodinâmica do ciclo vital de Daenerys Targaryen, personagem da série Game of Thrones / Psychodynamic understanding of "Daenerys Targaryen's" life cycle, character from the series "Game of Thrones"

Este artigo analisa os aspectos psicológicos da personagem Daenerys Targaryen, da série Game of thrones, buscando essencialmente avaliar sua evolução cognitiva, social e comportamental, bem como os conflitos vivenciados em seu ciclo vital e os respectivos mecanismos de enfrentamento das adversidades. Por meio da interpretação subjetiva das simbologias metafóricas citadas na narrativa, extrapola-se a leitura literal da obra, com vistas a compreender também as representações da esfera inconsciente da personagem. Daenerys tem infância conturbada pela morte dos pais, pela fuga da cidade natal, pelo exílio e pelos maus-tratos cometidos pelo irmão. Ademais, são-lhe impostos casamento e erotização precoces, eventos que desrespeitam seu tempo de amadurecimento psíquico, desencadeando encurtamento das fases do seu ciclo vital e desestabilização do processo de latência e desenvolvimento puberal. Contudo, as experiências que vivencia no período, tais quais a gestação e a emancipação por que passa, associadas a variantes inatas da sua personalidade - a exemplo do temperamento dócil, inteligência e autoconfiança na capacidade de resolução de vicissitudes -, permitem a expressão de uma figura icônica de resiliência, com ativação de defesas maduras frente a crises vitais ou acidentais. O estudo permitiu discutir aspectos da realidade contemporânea do desenvolvimento humano e proceder à observação de diversos mecanismos de funcionamento psíquico, além da interação entre variantes intrínsecas e extrínsecas moduladoras da expressão de resiliência frente às dificuldades. Este artigo visa a contribuir para o estudo da teoria psicodinâmica e deve interessar a profissionais da medicina e da psicologia.(AU)

This article analyzes the psychological aspects of character Daenerys Targaryen, from Game of Thrones' series, seeking essentially to evaluate her cognitive, social and behavioral evolution, as well as the conflicts experienced to each stage of her life cycle and related adversity coping mechanisms. Through subjective interpretation of metaphoric symbols mentioned in the narrative, the literal reading of the story is extrapolated in order to also comprehend representations of the character's unconscious domain. Daenerys goes through a troubled childhood due to her parents' death, fleeing from her home city, exile and mistreatment committed by her brother. Furthermore, events like marriage and early erotization are imposed to her, which disrespect her psychic development timing, causing shortening of her life cycle's stages, and destabilization of the latency phase process and her pubertal development. Nevertheless, the experiences she goes through in this period, such as pregnancy and emancipation, associated to innate variants of her personality - docile temperament, high cognition and self-confidence in the ability of resolving difficulties -, allow the expression of a resilient iconic figure, with the activation of mature defenses when facing vital or accidental crises. The study allows transpositions to contemporaneous reality of human development and observation of several mechanisms of psychic functions, besides the interaction between intrinsic and extrinsic variants, which modulate the expression of resilience when confronting distress. It contributes to the study of psychodynamic theory and may be of interest to doctors and psychologists, especially those directly involved in psychic development.(AU)