Abstract Background: Hospital accreditation has as goal the standardization of patient care, aiming quality improvement. On 2015, a cardiology reference hospital was evaluated and got level 3 from ONA in care given to Acute Coronary Syndrome (ACS) patients. Objetive: To compare length of stay (LOS) at Coronary Care Unit (CCU) and the total LOS at the hospital of ACS patients before and after ONA 3 accreditation. Other clinical outcomes were also analyzed. Methods: Systematic and prospective registry of admitted ACS patients at CCU, whose population was divided into pre-accreditation (period 1) and post-accreditation (period 2). Descriptive analysis was performed. For statistical analysis the Mann-Whitney test, chi-squared, Fisher’s exact test and Multiple Linear Regression were performed. P value was considered statistically significant when < 0,05. Results: 372 patients were admitted with ACS, 186 in period 1, of which 47 (25,3%) with ST segment Elevation Myocardial Infarction (STEMI), and 186 in period 2, of which 70 (37,6%) with STEMI. The mean age was 65,9 years (± 12,2). About the CCU LOS, there was a reduction from 3 (IQR: 2-4) to 2,5 days (IQR: 2-4; p value = 0,088). Regarding the hospital LOS, there was also a reduction from 8 (IQR: 5-12,25) to 6 days (IQR:4-11; p value = 0,004). Analyzing the type of ACS, there was a significant reduction only at the hospital LOS in non-STEMI patients: 8 to 6 days (p value = 0,001). Other hospitalization length of stay and clinical outcomes did not present a significant reduction in the comparison. Conclusion: After the ONA 3 accreditation, there was a reduction of hospital LOS. There were no significant differences in the other outcomes analyzed.

Resumo Fundamento: Distúrbios trombóticos permanecem como uma das principais causas de morte no mundo ocidental. A dabigatrana surgiu como alternativa à varfarina para a anticoagulação no tratamento da fibrilação atrial (FA). O risco associado a eventos hemorrágicos com a sua utilização foi documentado em vários ensaios clínicos randomizados, mas nenhum grande estudo analisou detalhadamente o risco de hemorragia durante a extração dentária e em outros procedimentos odontológicos que envolvam sangramentos. Objetivo: Em indivíduos submetidos a procedimentos odontológicos, avaliar a intensidade de sangramento com o uso de dabigatrana em comparação ao uso de anticoagulante oral antagonista da vitamina K (varfarina). Métodos: Estudo prospectivo, controlado, unicêntrico, observador único. Pacientes com diagnóstico de FA não valvar atendidos em um centro de referência em cardiologia e com indicação de anticoagulação que necessitavam de tratamento odontológico para exodontia única ou múltipla, estando em uso de varfarina ou dabigatrana e avaliados até sete dias pós-exodontia. Foram avaliados os efeitos sobre: tempo de sangramento entre o início e o fim da sutura e hemostasia completa; sangramento antes do procedimento, após 24 e 48 horas, 7 dias, durante e após a remoção da sutura (tardio), sendo considerado como estatisticamente significativo valor de p < 0,05. Resultados: Foram avaliados 37 indivíduos, sendo 25 no grupo varfarina e 12 no dabigatrana. Idade, sexo, peso, altura, pressão arterial, cor, escolaridade, renda familiar e comorbidades foram semelhantes nos dois grupos. Em relação ao sangramento 24 horas após o procedimento, ninguém do grupo dabigatrana apresentou sangramento, que esteve presente em 32% do grupo varfarina (p = 0,028). Não houve diferenças entre os grupos em relação às outras variáveis analisadas. Conclusões: Os dados deste estudo permitem sugerir que, em indivíduos submetidos a procedimento odontológico de exodontia, não há diferença estatisticamente significante na intensidade de sangramento em uso de dabigatrana em comparação ao uso de varfarina. Há uma menor frequência de sangramento 24 horas após o procedimento nos indivíduos em uso de dabigatrana.

Abstract Background: Thrombotic disorders remain one of the leading causes of death in the Western world. Dabigatran appeared as an alternative to warfarin for anticoagulation in the treatment of atrial fibrillation (AF). The risk associated with bleeding due to its use has been documented in several randomized clinical trials, but no large study has examined in detail the risk of bleeding during dental extraction and other dental procedures involving bleeding. Objective: To compare the intensity of bleeding in individuals taking dabigatran or vitamin K antagonist (warfarin) and undergoing dental procedures. Methods: Prospective, single-center, controlled study with one single observer. Patients diagnosed with nonvalvular AF, on warfarin or dabigatran, cared for at a cardiology referral center, and requiring single or multiple dental extractions, were evaluated up to seven days post-extraction. The following outcomes were assessed: bleeding time between the beginning and the end of suture and complete hemostasis; bleeding before the procedure, after 24 hours, 48 hours, 7 days, during and after suture removal (late); p<0.05 was defined as of statistical relevance. Results: We evaluated 37 individuals, 25 in the warfarin group and 12 in the dabigatran group. Age, sex, weight, height, blood pressure, color, schooling, family income and comorbidities were similar between the two groups. Regarding bleeding after 24 hours of the procedure, no one in the dabigatran group had bleeding, whereas 32% in the warfarin group had documented bleeding (p = 0.028). The other variables analyzed did not differ between the groups. Conclusions: This study suggests that, regarding dental extraction, there is no statistically significant difference in the intensity of bleeding of patients taking dabigatran as compared to those taking warfarin. Bleeding 24 hours after the procedure was less frequent among patients on dabigatran.