WELLINGTON ANDRAUS

(Fonte: Lattes)
Índice h a partir de 2011
20
Lattes
ResearcherID
ORCID
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/37 - Laboratório de Transplante e Cirurgia de Fígado, Hospital das Clínicas, Faculdade de Medicina

Filtros

Limpar filtros

Configurações

Revista / Livro: Transplantation Proceedings ×

Resultados de Busca

Agora exibindo 1 - 10 de 24
  • article 0 Citação(ões) na Scopus
    Innovative Technique Avoiding Bleeding After Reperfusion in Living Donor Liver Transplant Using a Modified Right Lobe Graft
    (2022) PINHEIRO, Rafael S.; ANDRAUS, Wellington; FORTUNATO, Allana C.; FERNANDES, Michel Ribeiro; NACIF, Lucas Souto; MARTINO, Rodrigo Bronze De; DUCATTI, Liliana; WAISBERG, Daniel Reis; ARANTES, Rubens Macedo; ROCHA-SANTOS, Vinicius; GALVAO, Flavio Henrique Ferreira; CARNEIRO-D'ALBUQUERQUE, Luiz Augusto
    Background. Living donor liver transplant (LDLT) is a valuable therapeutic option for over-coming the deceased donor shortage. Modified right lobe graft (MRLG) keeps the middle hepatic vein (MHV) trunk with the remnant liver to improve donor safety. Hemostasis in the MHV tributary reconstruction can be tricky; surgical stitches and energy coagulation are ineffective. Fibrin glues are excellent vascular sealants but are poor in maintaining hemostasis in an active hemorrhage or preventing resection surface-related complications after liver resection. We propose applying fibrin sealant during back table graft preparation to seal the hepatic edge and MHV reconstruction to avoid bleeding after graft revascularization. Methods. Our retrospective cohort study included all adult patients undergoing LDLT between August 2017 and December 2021. During the back table procedure, we performed the reconstruction of the inferior right hepatic vein and/or MHV tributaries from segment 5 (V5) and segment 8 (V8) using a vein harvested from a nonrelated deceased donor. Before initiating the hepatic graft implantation, we applied fibrin sealant in the resected parenchyma, especially in the V5 and V8 anastomosis, to seal the hepatic edge and hepatic vein reconstruction. Results. No bleeding was identified in the hepatic edge, and blood product transfusion was unnecessary for any recipients after reperfusion. Conclusion. In LDLT using MRLG with MHV reconstruction, the fibrin sealant, when applied on the raw hepatic surface, and vascular reconstruction during back table graft preparation avoided bleeding after graft revascularization.
  • article 4 Citação(ões) na Scopus
    Novel Technique in a Sheep Model of Uterine Transplantation
    (2020) ARANTES, Rubens Macedo; NACIF, Lucas Souto; PINHEIRO, Rafael Soares; ROCHA-SANTOS, Vinicius; MARTINO, Rodrigo Bronze de; WAISBERG, Daniel Reis; PANTANALI, Carlos Andres Rodriguez; FORTUNATO, Allana; LIMA, Marisa Rafaela; DUCATTI, Liliana; HADDAD, Luciana Bertocco de Paiva; EJZENBERG, Dani; GALVAO, Flavio Henrique; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz
  • article 1 Citação(ões) na Scopus
    Ten Years' Evaluation of Potential Pancreas Donors in Sao Paulo, Brazil
    (2014) PINHEIRO, R. S.; ROCHA-SANTOS, V.; PECORA, R. A.; MACEDO, R. A.; NACIF, L. S.; ANDRAUS, W.; DAVID, A. I.; PANTANALI, C. A.; BENITES, C. M.; D'ALBUQUERQUE, L. A. C.
    Background. Pancreas transplantation is a treatment for advanced type 1 diabetes and offers significant improvement in quality of life. Recent advances in surgical techniques and immunosuppression regimes lead to good outcomes. However, despite significant higher rates of multiorgan donors in Brazil, pancreas transplantation seems to have remained stable. This study aimed to investigate the acceptance rate of potential pancreas donors in the past 10 years in Sao Paulo State. Methods. We retrospectively evaluated potential pancreas donors characteristics and its acceptance rate in Sao Paulo State in the past 10 years. We divided this period into 2 eras: 1st era from January 2003 to January 2008; and 2nd era from January 2008 to January 2013. Data were obtained from Sao Paulo's government official website. Results. During the whole period, 5,005 deceased donors of all ages were available for pancreas transplantation. According to eras, we had 1,588 donors in the 1st and 3,417 in the 2nd era. In the 2nd era, donors >49 years old were significantly more common (P < .001). Blood test abnormalities, donor comorbidities, and high dosage of vasopressors also were significantly higher in the 2nd era. Rate of graft acceptance had a significant decrease in the 2nd era, from 46.4% to 25% (P < .05). Conclusions. Despite greater organ availability, pancreas transplantations performed in Sao Paulo State remained stable. Rate of graft acceptance is dramatically lower in more recent years.
  • article 2 Citação(ões) na Scopus
    Adult -to -Adult Living Donor Liver Transplant: Hemodynamic Evaluation, and Selection
    (2020) NACIF, Lucas Souto; ZANINI, Leonardo Yuri; WAISBERG, Daniel Reis; SANTOS, Joao Paulo Costa dos; PEREIRA, Juliana Marquezi; PINHEIRO, Rafael Soares; ROCHA-SANTOS, Vinicius; MARTINO, Rodrigo Bronze; ARANTES, Rubens Macedo; DUCATTI, Liliana; HADDAD, Luciana; GALVAO, Flavio Henrique; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz
  • article 5 Citação(ões) na Scopus
    Intraoperative Temporary Portocaval Shunt in Liver Transplant
    (2020) NACIF, Lucas Souto; ZANINI, Leonardo Yuri; SANTOS, Joao Paulo Costa dos; PEREIRA, Juliana Marquezi; PINHEIRO, Rafael Soares; ROCHA-SANTOS, Vinicius; MARTINO, Rodrigo Bronze de; WAISBERG, Daniel Reis; ARANTES, Rubens Macedo; DUCATTI, Liliana; HADDAD, Luciana; GALVAO, Flavio Henrique; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz
  • article 2 Citação(ões) na Scopus
    Histopathologic Evaluation of Acute on Chronic Liver Failure
    (2020) NACIF, Lucas Souto; AQUINO, Flavia; TANIGAWA, Ryan Yukimatsu; ZANINI, Leonardo Yuri; PINHEIRO, Rafael Soares; ROCHA-SANTOS, Vinicius; MARTINO, Rodrigo Bronze; SONG, Alice; ARANTES, Rubens Macedo; DUCATTI, Liliana; WAISBERG, Daniel Reis; GALVAO, Flavio Henrique; ANDRAUS, Wellington; ALVES, Venancio Avancini Ferreira; CARNEIRO-D'ALBUQUERQUE, Luiz
  • article 1 Citação(ões) na Scopus
    COVID-19 Pandemic Impact on Liver Donation in the Largest Brazilian Transplantation Center
    (2022) FORTUNATO, Allana C.; PINHEIRO, Rafael S.; FERNANDES, Michel Ribeiro; NACIF, Lucas Souto; ARANTES, Rubens Macedo; ROCHA-SANTOS, Vinicius; WAISBERG, Daniel Reis; MARTINO, Rodrigo Bronze De; DUCATTI, Liliana; HADDAD, Luciana Bertocco; SONG, Alice Tung; ABDALA, Edson; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz Augusto
    Background. COVID-19 has spread worldwide and has become a public health emergency and a pandemic of international concern. The solid organ donation system was no different. This study aimed to investigate the effect of COVID-19 on the liver transplant (LT) system in Brazilian territory. Methods. We retrospectively reviewed all liver donor records allocated in Sao Paulo State, Brazil, 1 year before and 1 year during the COVID-19 pandemic. We defined the pre-COVID-19 (PRE) period as between April 2019 and April 2020 and the post-COVID-19 (POST) period as between April 2020 and April 2021. Moreover, we compared LT performed in our institution during these periods. To evaluate outcomes, we compared 30-day survival after LT. Results. In the PRE period, 1452 livers were offered for donation in Sao Paulo State and other Brazilian territories. Of these, 592 were used in LT. In the POST period, 1314 livers were offered for donation, but only 477 were used in LT. Organ refusal was higher in the POST period (P < .05). Our center performed 127 and 156 LTs in these periods, respectively, and an increase above 20% was significant (P = .039). There was no difference in 30-day survival between the periods (87.2% vs 87.9%, P > .5, respectively). Conclusions. The COVID-19 pandemic harmed potential and allocated donors and LTs per-formed. However, it is possible to maintain the LT volume of a transplant center without compromising survival outcomes through preventive strategies against COVID-19 propagation.
  • article 0 Citação(ões) na Scopus
    Incidence of Donor Hepatic Artery Thrombosis in Liver Grafts Recognized During Organ Procurement and Backtable: A Rare but Treacherous Pitfall In Liver Transplantation
    (2022) SILVA, Natalie Almeida; WAISBERG, Daniel Reis; FERNANDES, Michel Ribeiro; PINHEIRO, Rafael Soares; SANTOS, Joao Paulo Costa; LIMA, Marisa Rafaela Damasceno; ALVAREZ, Paola Sofia Espinoza; ERNANI, Lucas; LINS-ALBUQUERQUE, Marcos Vinicius; NACIF, Lucas Souto; ROCHA-SANTOS, Vinicius; MARTINO, Rodrigo Bronze; DUCATTI, Liliana; ARANTES, Rubens Macedo; SONG, Alice Tung; LEE, Andre Dong; HADDAD, Luciana Bertocco; RIVA, Daniel Fernandes Dala; SILVA, Amanda Maria; GALVAO, Flavio Henrique; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz Augusto
    Introduction. Donor hepatic artery thrombosis (dHAT) identified during liver procurement and backtable is a rare and little-reported event that can make liver transplants unfeasible.Methods. This is a retrospective study of dHAT identified during liver grafts procurements or backtable procedures. All grafts were recovered from brain-dead donors. The demographic characteristics of the donors and the incidence of dHAT were analyzed. The data were also compared to a cohort of donors without dHAT.Results. There was a total of 486 donors during the study period. The incidence of dHAT was 1.85% (n = 9). The diagnosis of dHAT was made during procurement in 5 cases (55.5%) and during the backtable in 4 (44.4%). Most donors were female (n = 5), with an average BMI of 28.14 6.9 kg/m2, hypertensive (n = 5), and with stroke as cause of brain death (n = 8). The most prevalent site of dHAT was a left hepatic artery originating from the left gastric artery (n = 4). Of the 9 cases reported, 2 livers were used for transplantation, and 7 were discarded. Comparing those cases to a cohort of 260 donors without dHAT, we found a higher incidence of anatomic variations in the hepatic artery (P = .01) and of stroke as cause of brain death (P = .05).Conclusion. The occurrence of dHAT before liver procurement is a rare event, however it may become a treacherous pitfall if the diagnosis is late. Grafts with anatomic variations recovered from women with brain death due to stroke and with past history of hypertension seem to be at a higher risk of presenting dHAT.
  • article 12 Citação(ões) na Scopus
    Better Selection Criteria With Prognostic Factors for Liver Transplantation
    (2018) NACIF, L. S.; PINHEIRO, R. S.; ROCHA-SANTOS, V.; BARBOSA, V. M.; DIAS, A. P. de Moura; MARTINO, R. B.; MACEDO, R. A.; DUCATTI, L.; HADDAD, L.; GALVAO, F.; ANDRAUS, W.; D'ALBUQUERQUE, L. Carneiro
    Background. Liver transplantation has evolved significantly in recent years, with each advancement part of the effort toward increasing patient and graft survival as well as quality of life. The objective of this study was to evaluate the prognostic factors and selection criteria for liver transplantation. Methods. Our study was a statistical analysis, logistic regression, and survival evaluation of a total of 80 liver transplants that were performed between June 1, 2016 and September 24, 2016. Recipient factors evaluated included age, retransplantation, hemodialysis, cardiac risk, portal vein thrombosis, hospitalization, fulminant hepatitis, previous surgery, renal failure, and Model for End-stage Liver Disease (MELD) score. Donor factors included age, cardiac arrest, acidosis, days in the intensive care unit, steatosis, and vasoactive drug use. Results. Of the 80 patients transplanted, 65 deceased donor liver transplants (DDLTs) and 15 living donor liver transplants (LDLTs) were performed. LDLT overall 1-year patient survival was 77.5% and graft survival 75%, and DDLT overall patient survival was 89.23% and graft survival was 86.15%. On evaluated score criteria analyzed we observed a significant score on recipient (P=.01) and not significant on donor (P=.45). Isolated factors evaluated included recipient age (relative risk [RR] 3.15, 95% confidence interval [CI] 0.89 to 11.09; P=.074), retransplant (RR 4.22, 95% CI 1.36 to 13.1; P=.013), and hemodialysis (RR 4.23, 95% CI 1.45 to 12.31, P=.008). On donor evaluation, we observed moderate and severe steatosis (RR 3.8, 95% CI 0.86 to 16.62; P=.06). Conclusion. In conclusion, we demonstrate a relevant model of criteria selection of liver transplant patients that is able to make a better match between the donor and recipient allocation for a better graft and patient survival.
  • article 0 Citação(ões) na Scopus
    Feasibility of Large Liver Grafts in Adults
    (2020) LIMA, Marisa Rafaela Damasceno; WAISBERG, Daniel Reis; ZANINI, Leonardo Yuri; PINHEIRO, Rafael Soares; NACIF, Lucas Souto; ERNANI, Lucas; ARANTES, Rubens Macedo; LINS-ALBUQUERQUE, Marcos Vinicius; SANTO FILHO, Marco Aurelio; MARTINO, Rodrigo Bronze; ROCHA-SANTOS, Vinicius; DUCATTI, Liliana; HADDAD, Luciana Bertocco; SONG, Alice Tung; LEE, Andre Dong; GALVAO, Flavio Henrique; ANDRAUS, Wellington; CARNEIRO-D'ALBUQUERQUE, Luiz Augusto