PAULO HERMAN

(Fonte: Lattes)
Índice h a partir de 2011
19
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Gastroenterologia, Faculdade de Medicina - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/37 - Laboratório de Transplante e Cirurgia de Fígado, Hospital das Clínicas, Faculdade de Medicina

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Agora exibindo 1 - 10 de 138
  • article 3 Citação(ões) na Scopus
    Propensity Score-Matching Analysis Comparing Robotic Versus Laparoscopic Limited Liver Resections of the Posterosuperior Segments An International Multicenter Study
    (2024) KRENZIEN, Felix; SCHMELZLE, Moritz; PRATSCHKE, Johann; FELDBRUEGGE, Linda; LIU, Rong; LIU, Qu; ZHANG, Wanguang; ZHAO, Joseph J.; TAN, Hwee-Leong; CIPRIANI, Federica; HOOGTEIJLING, Tijs J.; AGHAYAN, Davit L.; FRETLAND, Asmund A.; SIOW, Tiing Foong; LIM, Chetana; SCATTON, Olivier; HERMAN, Paulo; COELHO, Fabricio F.; MARINO, Marco V.; MAZZAFERRO, Vincenzo; CHIOW, Adrian K. H.; SUCANDY, Iswanto; IVANECZ, Arpad; CHOI, Sung Hoon; LEE, Jae Hoon; GASTACA, Mikel; VIVARELLI, Marco; GIULIANTE, Felice; VALLE, Bernardo Dalla; RUZZENENTE, Andrea; YONG, Chee-Chien; CHEN, Zewei; YIN, Mengqiu; FONDEVILA, Constantino; EFANOV, Mikhail; MORISE, Zenichi; BENEDETTO, Fabrizio Di; BRUSTIA, Raffaele; VALLE, Raffaele Dalla; BOGGI, Ugo; GELLER, David; BELLI, Andrea; MEMEO, Riccardo; GRUTTADAURIA, Salvatore; MEJIA, Alejandro; PARK, James O.; ROTELLAR, Fernando; CHOI, Gi-Hong; ROBLES-CAMPOS, Ricardo; WANG, Xiaoying; SUTCLIFFE, Robert P.; HASEGAWA, Kiyoshi; TANG, Chung-Ngai; CHONG, Charing C. N.; LEE, Kit-Fai; MEURS, Juul; D'HONDT, Mathieu; MONDEN, Kazuteru; LOPEZ-BEN, Santiago; KINGHAM, T. Peter; FERRERO, Alessandro; ETTORRE, Giuseppe M.; PASCUAL, Franco; CHERQUI, Daniel; ZHENG, Junhao; LIANG, Xiao; SOUBRANE, Olivier; WAKABAYASHI, Go; TROISI, Roberto I.; CHEUNG, Tan-To; KATO, Yutaro; SUGIOKA, Atsushi; DOKMAK, Safi; D'SILVA, Mizelle; HAN, Ho-Seong; NGHIA, Phan Phuoc; LONG, Tran Cong Duy; HILAL, Mohammad Abu; CHEN, Kuo-Hsin; FUKS, David; ALDRIGHETTI, Luca; EDWIN, Bjorn; GOH, Brian K. P.
    Objective: The purpose of this study was to compare the outcomes of robotic limited liver resections (RLLR) versus laparoscopic limited liver resections (LLLR) of the posterosuperior segments.Background: Both laparoscopic and robotic liver resections have been used for tumors in the posterosuperior liver segments. However, the comparative performance and safety of both approaches have not been well examined in the existing literature.Methods: This is a post hoc analysis of a multicenter database of 5446 patients who underwent RLLR or LLLR of the posterosuperior segments (I, IVa, VII, and VIII) at 60 international centers between 2008 and 2021. Data on baseline demographics, center experience and volume, tumor features, and perioperative characteristics were collected and analyzed. Propensity score-matching (PSM) analysis (in both 1:1 and 1:2 ratios) was performed to minimize selection bias.Results: A total of 3510 cases met the study criteria, of whom 3049 underwent LLLR (87%), and 461 underwent RLLR (13%). After PSM (1:1: and 1:2), RLLR was associated with a lower open conversion rate [10 of 449 (2.2%) vs 54 of 898 (6.0%); P=0.002], less blood loss [100 mL [IQR: 50-200) days vs 150 mL (IQR: 50-350); P<0.001] and a shorter operative time (188 min (IQR: 140-270) vs 222 min (IQR: 158-300); P<0.001]. These improved perioperative outcomes associated with RLLR were similarly seen in a subset analysis of patients with cirrhosis-lower open conversion rate [1 of 136 (0.7%) vs 17 of 272 (6.2%); P=0.009], less blood loss [100 mL (IQR: 48-200) vs 160 mL (IQR: 50-400); P<0.001], and shorter operative time [190 min (IQR: 141-258) vs 230 min (IQR: 160-312); P=0.003]. Postoperative outcomes in terms of readmission, morbidity and mortality were similar between RLLR and LLLR in both the overall PSM cohort and cirrhosis patient subset.Conclusions: RLLR for the posterosuperior segments was associated with superior perioperative outcomes in terms of decreased operative time, blood loss, and open conversion rate when compared with LLLR.
  • article 6 Citação(ões) na Scopus
    Diagnosis and Impact of Hilar Lymph Node Micrometastases on the Outcome of Resected Colorectal Liver Metastasis
    (2013) LUPINACCI, Renato M.; HERMAN, Paulo; COELHO, Fabricio C.; VIANA, Eduardo F.; D'ALBUQUERQUE, Luiz A. C.; CECCONELLO, Ivan
    Background/Aims: Liver resection is the only curative therapy for metastatic colorectal cancer. However, recurrence occurs in the majority of the cases. Hilar lymph node metastases occur with a high frequency but the methodology for its detection and the impact on the outcome of patients undergoing hepatectomy is still unknown. Methodology: Twenty-six patients submitted to partial liver resection and systematic lymphadenectomy were studied prospectively. Lymph nodes considered negative by hematoxylin and eosin (H&E) staining were analyzed by serial sectioning and immunohistochemistry (IHC) with anti-human pancytokeratin antibody AE1/AE3. Recurrence-free and overall survivals were compared among LN groups. Results: The mean number of dissected lymph nodes were 6.3 per patient. H&E showed microscopic involvement of LN in 2 patients and 3 patients had metastases identified only by IHC. The median follow-up was 39.3 months. Sixteen patients (61.5%) recurred after liver resection and although no statistical difference in survival was demonstrated there was a trend towards shorter recurrence-free survival among microscopic positive LN. Conclusions: Microscopic LN metastases may have impact in the outcome of patients submitted to curative hepatectomy. A better definition of micrometastases to LN is warranted, as though the potential benefit of hilar lymphadenectomy and chemotherapy selection by hilar lymph node status.
  • article 7 Citação(ões) na Scopus
    Guidelines for the Treatment of Hepatocellular Adenoma in the Era of Molecular Biology: An Experience-Based Surgeons' Perspective
    (2021) HERMAN, Paulo; FONSECA, Gilton Marques; KRUGER, Jaime Arthur Pirola; JEISMANN, Vagner Birk; COELHO, Fabricio Ferreira
    Background Hepatocellular adenoma (HA) is a rare benign liver tumor with increasing incidence affecting young women. In the last years, much has changed in diagnosis, classification, and treatment, due to the identification of different molecular subtypes. With the evolving knowledge, especially on molecular characteristics of the disease, we are far from a consensus of how to deal with such a multifaceted benign disease Methods In the last 20 years, we have treated 134 patients with HA with a mean age of 28 years, being 126 women. Fifty patients had a history of abdominal pain and 13 patients had an acute episode of pain due to rupture and bleeding. Until 2009, adenomas larger than 4 cm in diameter were resected, regardless of gender. From 2010 to 2016, only adenomas larger than 5 cm were referred for surgical treatment. Since 2016, resection was indicated in all female patients with non-steatotic adenomas larger than 5 cm and all adenomas in men. Results and Discussion One hundred twenty-four patients were submitted to resection, being in 21 major resections. Since 2010, 74% of resections were done laparoscopically. Patients with ruptured adenomas were treated with transarterial embolization. Morbidity rate was 8.1% with no mortality. Authors discuss point-by-point all the aspects and presentations of the disease and the best approach. We proposed a therapeutic guideline based on the best available evidence and in our experience. Conclusions Due to the complexity of the disease, the treatment of HA is one the best examples of an individualized approach.
  • article 9 Citação(ões) na Scopus
    Laparoscopic Right Hepatectomy for Cirrhotic Patients: Takasaki's Hilar Control and Caudal Approach
    (2017) KRUGER, Jaime Arthur Pirola; FONSECA, Gilton Marques; COELHO, Fabricio Ferreira; JEISMANN, Vagner; HERMAN, Paulo
    Cirrhotic patients bearing hepatocellular carcinomas (HCC) derive benefits from laparoscopic hepatectomy1 (-) 6 such as reduced bleeding, less overall and liver-specific complications, and fewer adhesions in the case of future reoperation or transplantation.7 (-) 10 Bleeding is concerning in the setting of cirrhosis,11 (-) 15 and adequate inflow control reduces blood loss. The caudal approach is the laparoscopic counterpart of the anterior approach to open surgery. It implies in parenchymal transection initiated from the visceral surface of the liver after limited hepatic mobilization, reducing the risk of increased circulating tumoral cells.16 (-) 18 Venous outflow transection and completion of ligament mobilization are left as last steps. A 46 years-old-male with hepatitis C virus and alcoholic cirrhosis was diagnosed with a 4-cm HCC (right hepatic lobe). Expected future liver remnant was 45 % of his total liver volume. A totally laparoscopic right hepatectomy was performed using six ports, and the specimen was removed through a Pfannenstiel auxiliary incision. A 10-mm 30A degrees scope was used. The pneumoperitoneum pressure was set to 12 mmHg. The right hepatic pedicle, the caudate lobe, and the major hepatic veins were managed with laparoscopic vascular staplers. Surgery was performed with limited liver mobilization and en bloc extrafascial right pedicle control (Takasaki's technique),19 followed by caudal parenchymal transection along the paracaval plane. The operative time was 450 min, and the estimated blood loss was 800 ml (no transfusion was required). The laparoscopic Takasaki technique and caudal approach are feasible procedures in the setting of cirrhosis, resulting in an oncologic adequate intervention with less morbidity.
  • article 2 Citação(ões) na Scopus
    Left Ventricular Dilation and Pulmonary Vasodilatation after Surgical Shunt for Treatment of Pre-Sinusoidal Portal Hypertension
    (2016) SANTAREM, Orlando Luis de Andrade; CLEVA, Roberto de; SASAYA, Flavia Megumi; ASSUMPCAO, Marianna Siqueira de; FURTADO, Meive Santos; BARBATO, Alfonso Julio Guedes; HERMAN, Paulo
    Objective The aim of this study was to prospectively investigate the long-term cardiovascular and pulmonary hemodynamic effects of surgical shunt for treatment of portal hypertension (PH) due to Schistosomiasis mansoni. Location The University of Sao Paulo Medical School, Brazil; Public Practice. Methods Hemodynamic evaluation was performed with transesophageal Doppler and contrast-enhanced echocardiography (ECHO) on twenty-eight participants with schistosomal portal hypertension. Participants were divided into two groups according to the surgical procedure used to treat their schistosomal portal hypertension within the last two years: group 1-distal splenorenal shunt (DSRS, n = 13) and group 2-esophagogastric devascularization and splenectomy (EGDS, n = 15). Results The cardiac output (5.08 +/- 0.91 L/min) and systolic volume (60.1 +/- 5.6 ml) were increased (p = 0.001) in the DSRS group. DSRS participants had a significant increase (p < 0.0001) in their left ventricular end-systolic and end-diastolic diameters as well as in their left ventricular end-diastolic and end-systolic volumes (p < 0.001) compared with the preoperative period. No statistically significant difference was found in the patients who underwent EGDS. ECHO revealed intrapulmonary vasodilatation (IPV) in 18 participants (64%), 9 DSRS and 9 EGDS (p > 0.05). Conclusions The late increase in the cardiac output, stroke volume and left ventricular diameters demonstrated left ventricular dilatation after a distal splenorenal shunt. ECHO revealed a greater prevalence for IPV in patients with schistosomiasis than has previously been described in patients with PH from liver cirrhosis.
  • article 8 Citação(ões) na Scopus
    I BRAZILIAN CONSENSUS ON MULTIMODAL TREATMENT OF COLORECTAL LIVER METASTASES. MODULE 2: APPROACH TO RESECTABLE METASTASES
    (2016) RIBEIRO, Heber Salvador de Castro; TORRES, Orlando Jorge Martins; MARQUES, Marcio Carmona; HERMAN, Paulo; KALIL, Antonio Nocchi; FERNANDES, Eduardo de Souza Martins; OLIVEIRA, Fabio Ferreira de; CASTRO, Leonaldson dos Santos; HANRIOT, Rodrigo; OLIVEIRA, Suilane Coelho Ribeiro; BOFF, Marcio Fernando; COSTA JR., Wilson Luiz da; GIL, Roberto de Almeida; PFIFFER, Tulio Eduardo Flesch; MAKDISSI, Fabio Ferrari; ROCHA, Manoel de Souza; AMARAL, Paulo Cezar Galvao do; COSTA, Leonardo Atem Goncalves de Arujo; ALOIA, Tomas A.; D'ALBUQUERQUE, Augusto Carneiro; COIMBRA, Felipe Jose Fernandez
    Background: Liver metastases of colorectal cancer are frequent and potentially fatal event in the evolution of patients. Aim: In the second module of this consensus, management of resectable liver metastases was discussed. Method: Concept of synchronous and metachronous metastases was determined, and both scenarius were discussed separately according its prognostic and therapeutic peculiarities. Results: Special attention was given to the missing metastases due to systemic preoperative treatment response, with emphasis in strategies to avoid its reccurrence and how to manage disappeared lesions. Conclusion: Were presented validated ressectional strategies, to be taken into account in clinical practice.
  • conferenceObject
    Results of Endoscopic Cyanoacrylate Injection for the Treatment of Esophageal Variceal Hemorrhage in Child-Pugh C Patients
    (2012) RIBEIRO, Joao Paulo A.; MALUF-FILHO, Fauze; MATUGUMA, Swrgio E.; HERMAN, Paulo; SAKAI, Paulo; D'ALBUQUERQUE, Luiz Augusto C.
  • article 25 Citação(ões) na Scopus
    Clinical and pathological evaluation of fibrolamellar hepatocellular carcinoma: a single center study of 21 cases
    (2015) CHAGAS, Aline Lopes; KIKUCHI, Luciana; HERMAN, Paulo; ALENCAR, Regiane S. S. M.; TANI, Claudia M.; DINIZ, Marcio Augusto; PUGLIESE, Vincenzo; ROCHA, Manoel de Souza; D'ALBUQUERQUE, Luiz Augusto Carneiro; CARRILHO, Flair Jose; ALVES, Venancio A. F.
    OBJECTIVES: Fibrolamellar hepatocellular carcinoma is a rare primary malignant liver tumor that differs from conventional hepatocellular carcinoma in several aspects. The aim of this study was to describe the clinical, surgical and histopathological features of fibrolamellar hepatocellular carcinoma and to analyze the factors associated with survival. METHODS: We identified 21 patients with histopathologically diagnosed fibrolamellar hepatocellular carcinoma over a 22-year period. Clinical information was collected from medical records and biopsies, and surgical specimens were reviewed. RESULTS: The median age at diagnosis was 20 years. Most patients were female (67%) and did not have associated chronic liver disease. Most patients had a single nodule, and the median tumor size was 120 mm. Vascular invasion was present in 31% of patients, and extra-hepatic metastases were present in 53%. Fourteen patients underwent surgery as the first-line therapy, three received chemotherapy, and four received palliative care. Eighteen patients had ""pure fibrolamellar hepatocellular carcinoma,'' whereas three had a distinct area of conventional hepatocellular carcinoma and were classified as having ""mixed fibrolamellar hepatocellular carcinoma.'' The median overall survival was 36 months. The presence of ""mixed fibrolamellar hepatocellular carcinoma'' and macrovascular invasion were predictors of poor survival. Vascular invasion was associated with an increased risk of recurrence in patients who underwent surgery. CONCLUSION: Fibrolamellar hepatocellular carcinoma was more common in young female patients without chronic liver disease. Surgery was the first therapeutic option to achieve disease control, even in advanced cases. Vascular invasion was a risk factor for tumor recurrence. The presence of macrovascular invasion and areas of conventional hepatocellular carcinoma were directly related to poor survival.
  • article 3 Citação(ões) na Scopus
    Impact of liver cirrhosis, the severity of cirrhosis, and portal hypertension on the outcomes of minimally invasive left lateral sectionectomies for primary liver malignancies
    (2023) COELHO, Fabricio Ferreira; HERMAN, Paulo; KRUGER, Jaime A. P.; WU, Andrew G. R.; CHIN, Ken-Min; HASEGAWA, Kiyoshi; ZHANG, Wanguang; ALZOUBI, Mohammad; AGHAYAN, Davit L.; SIOW, Tiing-Foong; SCATTON, Olivier; KINGHAM, T. Peter; V, Marco Marino; MAZZAFERRO, Vincenzo; CHIOW, Adrian K. H.; SUCANDY, Iswanto; IVANECZ, Arpad; CHOI, Sung Hoon; LEE, Jae Hoon; GASTACA, Mikel; VIVARELLI, Marco; GIULIANTE, Felice; RUZZENENTE, Andrea; YONG, Chee-Chien; DOKMAK, Safi; FONDEVILA, Constantino; EFANOV, Mikhail; MORISE, Zenichi; BENEDETTO, Fabrizio Di; BRUSTIA, Raffaele; VALLE, Raffaele Dalla; BOGGI, Ugo; GELLER, David; BELLI, Andrea; MEMEO, Riccardo; GRUTTADAURIA, Salvatore; MEJIA, Alejandro; PARK, James O.; ROTELLAR, Fernando; CHOI, Gi Hong; ROBLES-CAMPOS, Ricardo; WANG, Xiaoying; SUTCLIFFE, Robert P.; PRATSCHKE, Johann; LAI, Eric C. H.; CHONG, Charing C. N.; D'HONDT, Mathieu; MONDEN, Kazuteru; LOPEZ-BEN, Santiago; LIU, Rong; FERRERO, Alessandro; ETTORRE, Giuseppe Maria; CIPRIANI, Federica; CHERQUI, Daniel; LIANG, Xiao; SOUBRANE, Olivier; WAKABAYASHI, Go; TROISI, Roberto I.; YIN, Mengqiu; CHEUNG, Tan-To; SUGIOKA, Atsushi; HAN, Ho-Seong; LONG, Tran Cong Duy; FUKS, David; HILAL, Mohammad Abu; CHEN, Kuo-Hsin; ALDRIGHETTI, Luca; EDWIN, Bjorn; GOH, Brian K. P.
    Background: The impact of cirrhosis and portal hypertension on perioperative outcomes of minimally invasive left lateral sectionectomies remains unclear. We aimed to compare the perioperative outcomes between patients with preserved and compromised liver function (noncirrhotics versus Child-Pugh A) when undergoing minimally invasive left lateral sectionectomies. In addition, we aimed to determine if the extent of cirrhosis (Child-Pugh A versus B) and the presence of portal hypertension had a significant impact on perioperative outcomes. Methods: This was an international multicenter retrospective analysis of 1,526 patients who underwent minimally invasive left lateral sectionectomies for primary liver malignancies at 60 centers worldwide between 2004 and 2021. In the study, 1,370 patients met the inclusion criteria and formed the final study group. Baseline clinicopathological characteristics and perioperative outcomes of these patients were compared. To minimize confounding factors, 1:1 propensity score matching and coarsened exact matching were performed. Results: The study group comprised 559, 753, and 58 patients who did not have cirrhosis, Child-Pugh A, and Child-Pugh B cirrhosis, respectively. Six-hundred and thirty patients with cirrhosis had portal hy-pertension, and 170 did not.After propensity score matching and coarsened exact matching, Child-Pugh A patients with cirrhosis undergoing minimally invasive left lateral sectionectomies had longer operative time, higher intraoperative blood loss, higher transfusion rate, and longer hospital stay than patients without cirrhosis. The extent of cirrhosis did not significantly impact perioperative outcomes except for a longer duration of hospital stay. Conclusion: Liver cirrhosis adversely affected the intraoperative technical difficulty and perioperative outcomes of minimally invasive left lateral sectionectomies. & COPY; 2023 Elsevier Inc. All rights reserved.
  • article 8 Citação(ões) na Scopus
    Extended right hepatectomy with caudate lobe resection using the hilar ""en bloc"" resection technique with a modified hanging maneuver
    (2016) PERINI, Marcos V.; COELHO, Fabricio F.; KRUGER, Jaime A.; ROCHA, Flavio G.; HERMAN, Paulo
    The hanging liver maneuver is a useful technique to guide the transection of liver parenchyma by lifting a tape passed between the anterior surface of the inferior vena cava and the liver. Modified hanging liver maneuvers have been described in different types of liver resection. Surgical resection of hilar cholangiocarcinoma can involve the portal vein and the caudate lobe for margin clearance. However, hilar dissection and resection of the caudate lobe can be a challenging during the hanging maneuver once the tape is positioned. Herein, we describe a modified hanging liver maneuver for a hilar en bloc extended right hepatectomy with portal vein resection for the treatment of hilar cholangiocarcinoma including the caudate lobe. J. Surg. Oncol. 2016;113:427-431. (c) 2016 Wiley Periodicals, Inc.