BRUNO ADLER MACCAGNAN PINHEIRO BESEN

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Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/51 - Laboratório de Emergências Clínicas, Hospital das Clínicas, Faculdade de Medicina

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  • article 0 Citação(ões) na Scopus
    Capillary leak syndrome during continuous renal replacement therapy after renal hilum ligation in a hypercapnic landrace pig
    (2023) SANTOS, Y. A. P. Dos; JúNIOR, L. C. M. C.; MENDES, P. V.; BESEN, B. A. M. P.; PARK, M.
  • article 4 Citação(ões) na Scopus
    Calcium use during cardiac arrest: A systematic review
    (2022) PADRAO, Eduardo Messias Hirano; BUSTOS, Brian; MAHESH, Ashwin; RANDHAWA, Ravneet; DIPOLLINA, Christopher John; CARDOSO, Rhanderson; GROVER, Prashant; BESEN, Bruno Adler Maccagnan Pinheiro; CASTRO, Monaliza de Almeida
    Introduction: Calcium use during cardiac arrest has conflicting results in terms of efficacy. Therefore, we performed a systematic review evaluating the role of calcium administration in cardiac arrest. Methods: We searched PubMed, Cochrane, and EMBASE for studies comparing calcium administration versus no calcium administration during cardiac arrest. The study was prospectively registered in PROSPERO (CRD42022316641) adhering to PRISMA guideline recommendations. The primary outcome was return of spontaneous circulation (ROSC) or survival at one hour. The secondary outcomes included survival to discharge or at 30 days, and favorable neurologic outcomes at 30 and 90 days. We planned to perform a random-effects meta-analysis of low risk of bias studies. We evaluated risk of bias with RoB-2 and ROBINS-I.Results: We identified 1,921 articles and included ten studies with 2509 patients. We were not able to perform a meta-analysis with low-risk of bias studies as only one study was found to be at low-risk of bias. However, for the primary outcome, the three RCTs included showed no benefit with calcium administration during cardiac arrest for ROSC. For the secondary outcomes, based on the most recent study and lower risk of bias, there was a neutral effect for survival to discharge or at 30 days and neurologic outcomes at 30 days. However, there was unfavorable neurologic out-comes at 90 days. Conclusion: Based on our results, calcium administration in cardiac arrests shows no benefit and can cause harm. Further studies on this matter are likely not advisable.
  • article 0 Citação(ões) na Scopus
    Association between piperacillin/tazobactam use and acute kidney injury in critically ill patients: a retrospective multicentre cohort study
    (2024) TOMAZINI, Bruno Martins; BESEN, Bruno Adler Maccagnan Pinheiro; TANIGUCHI, Leandro Utino; ZAMPIERI, Fernando Godinho; CAVALCANTI, Alexandre Biasi
    Background: Piperacillin/tazobactam is one of the most common antibiotics prescribed in the ICU and the combination of piperacillin/tazobactam with vancomycin has been associated with acute kidney injury (AKI) in critically ill patients. However, data on the risk of AKI with piperacillin/tazobactam, despite vancomycin co-exposure, are lacking. Objectives: To investigate the association of piperacillin/tazobactam with AKI and renal replacement therapy (RRT) among adult ICU patients. Methods: We analysed data from patients included in two open access databases (MIMIC-IV and eICU). Critically ill patients who received piperacillin/tazobactam or cefepime (a cephalosporin with similar broad-spectrum activity to piperacillin/tazobactam) during their first ICU stay were eligible for the study. Marginal structural Cox models, accounting for time-fixed covariates and time-dependent covariates were performed. The primary outcomes were AKI and need of RRT. Results: A total of 20 107 patients were included, with 11 213 in the piperacillin/tazobactam group and 8894 in the cefepime group. Exposure to piperacillin/tazobactam was associated with AKI (HR 1.77; 95% CI 1.51-2.07; P < 0.001) and with need of RRT (HR 1.31; 95% CI 1.08-1.57; P = 0.005). Tests for interaction were not statistically significant for occurrence of AKI and RRT in the subgroup of patients exposed to vancomycin or not (P = 0.26 and P = 0.6, respectively). Conclusions: In critically ill patients, exposure to piperacillin/tazobactam was associated with increased risk of AKI and with increased risk of RRT, regardless of combination therapy with vancomycin.
  • article 0 Citação(ões) na Scopus
    Adverse events leading to intensive care unit admission in a low-and-middle-income-country: A prospective cohort study and a systematic review
    (2024) PEDRO, Rodolpho Augusto de Moura; BESEN, Bruno Adler Maccagnan Pinheiro; MENDES, Pedro Vitale; GOMES, Augusto Cezar Marins; CARVALHO, Marcelo Ticianelli de; MALBOUISSON, Luiz Marcelo Sa; PARK, Marcelo; TANIGUCHI, Leandro Utino
    Introduction: Adverse events (AE) are frequent in critical care and could be even more prevalent in LMIC due to a shortage of ICU beds and Human resources. There is limited data on how relevant AE are among the reasons for ICU admission, being all of which published by High-Income-Countries services. Our main goal is to describe the rate of adverse events-related ICU admissions and their preventability in a LMIC scenario, comparing our results with previous data.Methods: This was a prospective cohort study, during a one-year period, in two general ICUs from a tertiary public academic hospital. Our exposure of interest was ICU admission related to an AE in adult patients, we further characterized their preventability and clinical outcomes. We also performed a systematic review to identify and compare previous published data on ICU admissions due to AE.Results: Among all ICU admissions, 12.1% were related to an AE (9.8% caused by an AE, 2.3% related but not directly caused by an AE). These ICU admissions were not associated with a higher risk of death, but most of them were potentially preventable (70.9% of preventability rate, representing 8.6% of all ICU admissions). The meta-analysis resulted in a proportion of ICU admissions due to AE of 11% (95% CI 6%-16%), with a pre-ventability rate of 54% (95% CI 42%-66%).Conclusions: In this prospective cohort, adverse events were a relevant reason for ICU admission. This result is consistent with data retrieved from non-LMIC as shown in our meta-analysis. The high preventability rate described reinforces that quality and safety programs could work as a tool to optimize scarce resources.
  • article 43 Citação(ões) na Scopus
    Sepsis-3 definitions predict ICU mortality in a low-middle-income country
    (2016) BESEN, Bruno Adler Maccagnan Pinheiro; ROMANO, Thiago Gomes; NASSAR JR., Antonio Paulo; TANIGUCHI, Leandro Utino; AZEVEDO, Luciano Cesar Pontes; MENDES, Pedro Vitale; ZAMPIERI, Fernando Godinho; PARK, Marcelo
    Background: Sepsis-3 definitions were published recently and validated only in high-income countries. The aim of this study was to assess the new criteria's accuracy in stratifying mortality as compared to its predecessor (Sepsis-2) in a Brazilian public intensive care unit (ICU) and to investigate whether the addition of lactate values would improve stratification. Methods: Retrospective cohort study conducted between 2010 and 2015 in a public university's 19-bed ICU. Data from patients admitted to the ICU with sepsis were retrieved from a prospectively collected database. ICU mortality was compared across categories of both Sepsis-2 definitions (sepsis, severe sepsis and septic shock) and Sepsis-3 definitions (infection, sepsis and septic shock). Area under the receiving operator characteristic curves were constructed, and the net reclassification index and integrated discrimination index for the addition of lactate as a categorical variable to each stratum of definition were evaluated. Results: The medical records of 957 patients were retrieved from a prospectively collected database. Mean age was 52 +/- 19 years, median SAPS 3 was 65 [50,79], respiratory tract infection was the most common cause (42%, 402 patients), and 311 (32%) patients died in ICU. The ICU mortality rate was progressively higher across categories of sepsis as defined by the Sepsis-3 consensus: infection with no organ dysfunction-7 /103 (7%); sepsis-106/419 (25%); and septic shock-198/435 (46%) (P < 0.001). For Sepsis-2 definitions, ICU mortality was different only across the categories of severe sepsis [43/252-(17%)] and septic shock [250/572-(44%)] (P < 0.001); sepsis had a mortality of 18/135(13%) (P = 0.430 vs. severe sepsis). When combined with lactate, the definitions' accuracy in stratifying ICU mortality only improved with lactate levels above 4 mmol/L. This improvement occurred in the severe sepsis and septic shock groups (Sepsis-2) and the no-dysfunction and septic shock groups (Sepsis-3). Multivariate analysis demonstrated similar findings. Conclusions: In a Brazilian ICU, the new Sepsis-3 definitions were accurate in stratifying mortality and were superior to the previous definitions. We also observed that the new definitions' accuracy improved progressively with severity. Serum lactate improved accuracy for values higher than 4 mmol/L in the no-dysfunction and septic shock groups.
  • article 2 Citação(ões) na Scopus
    Fluid responsiveness assessment using inferior vena cava collapsibility among spontaneously breathing patients: Systematic review and meta-analysis
    (2023) CARDOZO, L. C. M.; LEMOS, G. S. D.; BESEN, B. A. M. P.
    Objective: To synthesize the evidence about diagnostic accuracy of inferior vena cava collapsi-bility (IVCc) in prediction of fluid responsiveness among spontaneously breathing patients. Design: Systematic review of diagnostic accuracy studies. Setting: Intensive care units or emergency departments. Patients and participants: spontaneously breathing patients with indication for fluid bolus administration. Interventions: A search was conducted in MEDLINE and EMBASE. We included studies assessing IVCc accuracy for fluid responsiveness assessment with a standard method for cardiac output measure as index test. Main variables of interest: General information (year, setting, cutoffs, standard method), sen-sitivity, specificity, and area under the receiving operator characteristics curve (AUROC). Risk of bias was assessed with QUADAS 2 tool. We obtained the pooled sensitivity, specificity and sum-mary ROC curve, with estimated confidence intervals from a bivariate model. We also calculated positive and negative likelihood ratios and developed a Fagon nomogram. Results: Eight studies were included with 497 patients. Overall, the studies presented a high risk of bias. IVCc sensitivity was 63% (95% CI --46-78%) and specificity 83% (95% CI --76-87%). Despite moderate accuracy of IVCc (SROC 0.83, 95% CI --0.80-0.86), post-test probability of being fluid responsive based on a 50% pre-test probability led to considerable misclassification. Conclusions: IVCc had moderate accuracy for fluid responsiveness assessment in spontaneously breathing patients and should not be used in isolation for this purpose. & COPY; 2022 Elsevier Espan & SIM;a, S.L.U. y SEMICYUC. All rights reserved.
  • article 2 Citação(ões) na Scopus
    Association of fasting in the first 72 h of intensive care unit stay with outcomes of critically ill patients
    (2023) CARDOZO JUNIOR, Luis Carlos Maia; BESEN, Bruno Adler Maccagnan Pinheiro; SANTOS, Yuri de Albuquerque Pessoa dos; MENDES, Pedro Vitale; PARK, Marcelo
    Background Whether fasting early in critical illness course is acceptable is not clear and high-quality data on this topic are lacking. To generate equipoise for future clinical trials and bring additional data to current literature, we compared outcomes of patients fasted during the first 72 h of intensive care unit (ICU) stay to patients receiving any nutrition support during this period. Methods Retrospective cohort study of a medical ICU from a tertiary academic center in Brazil. Adult patients treated between November 2017 and February 2022 with an ICU length of stay of >= 5 days were included. Baseline and daily data were retrieved from the prospectively collected administrative database. We did 1:1 propensity score matching to compare patients fasting for at least 72 h with controls. Primary outcome was hospital mortality and secondary outcomes were other resources' use. Results During the study period, 1591 patients were cared for in this ICU, of which 998 stayed >= 5 days. After excluding readmissions and propensity score matching, 93 patients in the fasting group were matched to 93 controls. Hospital mortality was similar between fasting and matched control groups (odds ratio = 1.04; 95% CI = 0.56-1.94; P > 0.99). Secondary outcomes were not different between groups, including length of stay, days on mechanical ventilation, and incidence of new infections. Conclusion Withholding nutrition support in the first 72 h of ICU stay was not associated with worse outcomes in this cohort of severe critically ill patients.
  • article 53 Citação(ões) na Scopus
    Protective ventilation and outcomes of critically ill patients with COVID-19: a cohort study
    (2021) FERREIRA, Juliana C.; HO, Yeh-Li; BESEN, Bruno Adler Maccagnan Pinheiro; MALBOUISSON, Luiz Marcelo Sa; TANIGUCHI, Leandro Utino; MENDES, Pedro Vitale; COSTA, Eduardo Leite Vieira; PARK, Marcelo; DALTRO-OLIVEIRA, Renato; ROEPKE, Roberta M. L.; SILVA-JR, Joao M.; CARMONA, Maria Jose Carvalho; CARVALHO, Carlos R. R.
    Background Approximately 5% of COVID-19 patients develop respiratory failure and need ventilatory support, yet little is known about the impact of mechanical ventilation strategy in COVID-19. Our objective was to describe baseline characteristics, ventilatory parameters, and outcomes of critically ill patients in the largest referral center for COVID-19 in Sao Paulo, Brazil, during the first surge of the pandemic. Methods This cohort included COVID-19 patients admitted to the intensive care units (ICUs) of an academic hospital with 94 ICU beds, a number expanded to 300 during the pandemic as part of a state preparedness plan. Data included demographics, advanced life support therapies, and ventilator parameters. The main outcome was 28-day survival. We used a multivariate Cox model to test the association between protective ventilation and survival, adjusting for PF ratio, pH, compliance, and PEEP. Results We included 1503 patients from March 30 to June 30, 2020. The mean age was 60 +/- 15 years, and 59% were male. During 28-day follow-up, 1180 (79%) patients needed invasive ventilation and 666 (44%) died. For the 984 patients who were receiving mechanical ventilation in the first 24 h of ICU stay, mean tidal volume was 6.5 +/- 1.3 mL/kg of ideal body weight, plateau pressure was 24 +/- 5 cmH(2)O, respiratory system compliance was 31.9 (24.4-40.9) mL/cmH(2)O, and 82% of patients were ventilated with protective ventilation. Noninvasive ventilation was used in 21% of patients, and prone, in 36%. Compliance was associated with survival and did not show a bimodal pattern that would support the presence of two phenotypes. In the multivariable model, protective ventilation (aHR 0.73 [95%CI 0.57-0.94]), adjusted for PF ratio, compliance, PEEP, and arterial pH, was independently associated with survival. Conclusions During the peak of the epidemic in Sao Paulo, critically ill patients with COVID-19 often required mechanical ventilation and mortality was high. Our findings revealed an association between mechanical ventilation strategy and mortality, highlighting the importance of protective ventilation for patients with COVID-19.
  • article 24 Citação(ões) na Scopus
    MiR-200c-3p expression may be associated with worsening of the clinical course of patients with COVID-19
    (2021) PIMENTA, Ruan; I, Nayara Viana; SANTOS, Gabriel A. dos; CANDIDO, Patricia; GUIMARAES, Vanessa R.; ROMAO, Poliana; SILVA, Iran A.; CAMARGO, Juliana A. de; HATANAKA, Dina M.; QUEIROZ, Paula G. S.; TERUYA, Alexandre; ECHENIQUE, Leandro; BESEN, Bruno A. M. P.; LEITE, Katia R. M.; SROUGI, Victor; SROUGI, Miguel; REIS, Sabrina T.
    COVID-19 represents a public health emergency, whose mechanism of which is not fully understood. It is speculated that microRNAs may play a crucial role in host cells after infection by SARS-CoV-2. Thus, our study aimed to analyze the expression of miR-200c-3p in saliva samples from patients with COVID-19. One handred eleven samples from patients with COVID-19 were divided into 4 groups. Group I: 39 patients negative for Covid-19; Group II: 37 positive and symptomatic patients, with no indication of hospitalization; Group III: 21 patients with respiratory disorders (hospitalized); Group W: 14 patients with severe conditions (oxygen therapy). The expression levels of miR-200c-3p were determined using qPCR. We found greater expression of miR-200c-3p in patients in group W (p<0.0001), and also verified that patients aged >= 42 years had a higher expression of this miR (p=0.013). Logistic regression analysis revealed that the expression of miR-200c-3p and systemic arterial hypertension are factors independently associated with patients in group IV (p<0.0001). Our results suggest that miR-200c-3p is a predictor of severity independent of COVID-19 risk factors, which could represent a way of screening patients affected by SARS-CoV-2.
  • article 0 Citação(ões) na Scopus
    Immunothrombosis and COVID-19-a nested post-hoc analysis from a 3186 patient cohort in a Latin American public reference hospital
    (2023) LIMA, Clarice Antunes de; GONCALVES, Fabio Augusto Rodrigues; BESEN, Bruno Adler Maccagnan Pinheiro; PEREIRA, Antonio Jose Rodrigues; PERAZZIO, Sandro Felix; TRINDADE, Evelinda Marramon; FONSECA, Luiz Augusto Marcondes; SUMITA, Nairo Massakazu; PINTO, Vanusa Barbosa; DUARTE, Alberto Jose da Silva; MANIN, Carolina Broco; LICHTENSTEIN, Arnaldo
    Objective: COVID-19 is associated with an elevated risk of thromboembolism and excess mortality. Difficulties with best anticoagulation practices and their implementation motivated the current analysis of COVID-19 patients who developed Venous Thromboembolism (VTE). Method: This is a post-hoc analysis of a COVID-19 cohort, described in an economic study already published. The authors analyzed a subset of patients with confirmed VTE. We described the characteristics of the cohort, such as demographics, clinical status, and laboratory results. We tested differences amid two subgroups of patients, those with VTE or not, with the competitive risk Fine and Gray model. Results: Out of 3186 adult patients with COVID-19, 245 (7.7%) were diagnosed with VTE, 174 (5.4%) of them dur-ing admission to the hospital. Four (2.3% of these 174) did not receive prophylactic anticoagulation and 19 (11%) discontinued anticoagulation for at least 3 days, resulting in 170 analyzed. During the first week of hospitaliza-tion, the laboratory most altered results were C-reactive protein and D-dimer. Patients with VTE were more criti-cal, had a higher mortality rate, worse SOFA score, and, on average, 50% longer hospital stay. Conclusion: Proven VTE incidence in this severe COVID-19 cohort was 7.7%, despite 87% of them complying completely with VTE prophylaxis. The clinician must be aware of the diagnosis of VTE in COVID-19, even in patients receiving proper prophylaxis.