VAGNER BIRK JEISMANN
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
4 resultados
Resultados de Busca
Agora exibindo 1 - 4 de 4
- 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, PauloCirrhotic 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.
bookPart Helicobacter pylori e a doença péptica do esôfago, estômago e duodeno(2017) JEISMANN, Vagner Birk; RODRIGUEZ, Tomás Navarro; RIBEIRO JUNIOR, Ulysses- Hand-assisted Approach as a Model to Teach Complex Laparoscopic Hepatectomies: Preliminary Results(2017) MAKDISSI, Fabio F.; JEISMANN, Vagner B.; KRUGER, Jaime A. P.; COELHO, Fabricio F.; RIBEIRO-JUNIOR, Ulysses; CECCONELLO, Ivan; HERMAN, PauloBackground: Currently, there are limited and scarce models to teach complex liver resections by laparoscopy. The aim of this study is to present a hand-assisted technique to teach complex laparoscopic hepatectomies for fellows in liver surgery. Materials and Methods: Laparoscopic hand-assisted approach for resections of liver lesions located in posterosuperior segments (7, 6/7, 7/8, 8) was performed by the trainees with guidance and intermittent intervention of a senior surgeon. Data as: (1) percentage of time that the senior surgeon takes the surgery as main surgeon, (2) need for the senior surgeon to finish the procedure, (3) necessity of conversion, (4) bleeding with hemodynamic instability, (5) need for transfusion, (6) oncological surgical margins, were evaluated. Results: In total, 12 cases of complex laparoscopic liver resections were performed by the trainee. All cases included deep lesions situated on liver segments 7 or 8. The senior surgeon intervention occurred in a mean of 20% of the total surgical time (range, 0% to 50%). A senior intervention > 20% was necessary in 2 cases. There was no need for conversion or reoperation. Neither major bleeding nor complications resulted from the teaching program. All surgical margins were clear. Conclusions: This preliminary report shows that hand-assistance is a safe way to teach complex liver resections without compromising patient safety or oncological results. More cases are still necessary to draw definitive conclusions about this teaching method.
- Are Hybrid Liver Resections Truly Minimally Invasive? A Propensity Score Matching Analysis(2017) COELHO, Fabricio Ferreira; KRUGER, Jaime Arthur Pirola; JEISMANN, Vagner Birk; FONSECA, Gilton Marques; MAKDISSI, Fabio Ferrari; FERREIRA, Leandro Augusto; D'ALBUQUERQUE, Luiz Augusto Carneiro; CECCONELLO, Ivan; HERMAN, PauloBackground: Hybrid liver resection is considered a modality of minimally invasive surgery; however, there are doubts regarding loss of benefits of laparoscopy due to the use of an auxiliary incision. We compared perioperative results of patients undergoing hybridxopen and hybridxpure laparoscopic resections. Methods: Consecutive patients undergoing liver resection between June 2008 and January 2016 were studied. Study groups were compared after propensity score matching (PSM). Results: Six hundred forty-four resections were included in the comparative analysis: 470 open, 120 pure laparoscopic, and 54 hybrids. After PSM, 54 patients were included in each group. Hybridxopen: hybrid technique had shorter operative time (319.5108.6x376.2 +/- 155.8 minutes, P=.033), shorter hospital stay (6.0 +/- 2.7x8.1 +/- 5.6 days, P=.001), and lower morbidity (18.5%x40.7%, P=.003). Hybridxpure laparoscopic: hybrid group had lower conversion rate (0%x13%, P=.013). There was no difference regarding estimated blood loss, transfusion rate, hospital stay, complications, or mortality. Conclusions: Hybrid resection has better perioperative results than the open approach and is similar to pure laparoscopy. The hybrid technique should be considered a minimally invasive approach.