MANOEL CARLOS PRIETO VELHOTE

Índice h a partir de 2011
9
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina - Médico

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Agora exibindo 1 - 10 de 33
  • bookPart
    Malformações do sistema respiratório
    (2019) TANNURI, Uenis; VELHOTE, Manoel Carlos Prieto; CARVALHO, Thiago Caldi de; RODRIGUES, Joaquim Carlos
  • article 6 Citação(ões) na Scopus
    Living donor liver transplantation in children: Should the adult donor be operated on by an adult or pediatric surgeon? Experience of a single pediatric center
    (2014) ANDRADE, Wagner de Castro; VELHOTE, Manoel Carlos Prieto; AYOUB, Ali Ahman; SILVA, Marcos Marques; GIBELLI, Nelson Elias M.; TANNURI, Ana Cristina A.; SANTOS, Maria Merces; PINHO-APEZZATO, Maria Lucia; BARROS, Fabio de; MOREIRA, Daniel Rangel; MIYATANI, Helena T.; PEREIRA, Raimundo Renato; TANNURI, Uenis
    Background/Purpose: Living donor liver transplantation has become a cornerstone for the treatment of children with end-stage hepatic dysfunction, especially within populations or countries with low rates of organ utilization from deceased donors. The objective is to report our experience with 185 living donors operated on by a team pediatric surgeons in a tertiary center for pediatric liver transplantation. Methods: Retrospective analysis of medical records of donors of hepatic grafts for transplant undergoing surgery between June 1998 and March 2013. Results: Over the last 14 years, 185 liver transplants were performed in pediatric recipients of grafts from living donors. Among the donors, 166 left lateral segments (89.7%), 18 left lobes without the caudate lobe (9.7%) and 1 right lobe (0.5%) were harvested. The donor age ranged from 16 to 53 years, and the weight ranged from 47 to 106 kg. In 10 donors, an additional graft of the donor inferior mesenteric vein was harvested to substitute for a hypoplastic recipient portal vein. The transfusion of blood products was required in 15 donors (8.1%). The mean hospital stay was 5 days. No deaths occurred, but complications were identified in 23 patients (12.4%): 9 patients experienced abdominal pain and severe gastrointestinal symptoms and 3 patients required reoperations. Eight donors presented with minor bile leaks that were treated conservatively, and 3 patients developed extra-peritoneal infections (1 wound collection, 1 phlebitis and 1 pneumonia). Eight grafts (4.3%) showed primary dysfunction resulting in recipient death (3 cases of fulminant hepatitis, 1 patient with metabolic disease, 1 patient with Alagille syndrome and 3 cases of biliary atresia in infants under 1 year old). There was no relation between donor complications and primary graft dysfunction (P = 0.6). Conclusions: Living donor transplantation is safe for the donor and presents a low morbidity. The donor surgery may be performed by a team of trained pediatric surgeons.
  • conferenceObject
    Bariatric Surgery as Treatment of Primary Pseudotumor Cerebri in a Male Adolescent: Case Report
    (2018) YBARRA, Marina; SANTOS, Tiago Jeronimo dos; QUEIROZ, Edjane Santos; RACHID, Ludmilla; FRANCO, Ruth Rocha; COMINATO, Louise; MOURA, Frederico Castelo; VELHOTE, Manoel Carlos; DAMIANI, Durval
  • conferenceObject
    Changes on Gut Microbiota after Laparoscopic Sleeve Gastrectomy in Adolescence: Case Reports
    (2019) RACHID, L.; COMINATO, L.; FRANCO, R. R.; V, R. Cortez; MOREIRA, L. N.; FRASCINO, A.; TADDEI, C. R.; STEINMETZ, L.; MANNA, T. Della; VELHOTE, M. C. P.; FILHO, H. C. M.; TOMA, R. K.; DAMIANI, D.
  • article
    Cirurgias plásticas para readequação de contorno corporal de pacientes submetidos a cirurgia bariátrica durante a adolescência
    (2012) ROCHA, Rodrigo Itocazo; GEMPERLI, Rolf; MODOLIN, Miguel Luiz Antonio; CINTRA JUNIOR, Wilson; VELHOTE, Manoel Carlos Prieto; FERREIRA, Marcus Castro
    BACKGROUND: Surgical treatments for obesity in adolescents were introduced in the 1990s, resulting in individuals undergoing bariatric surgery, and exhibiting weight loss and dysmorphic body features. This produced a demand for plastic surgery in order to readjust the body contour. The aim of this study was to identify factors associated with morbidity and mortality for these corrective body contouring plastic surgeries in patients who underwent bariatric surgery during adolescence. METHODS: Between January 2008 and January 2011, 5 adolescent patients underwent gastric bypass surgery, with a consequent loss and stabilization of weight, and then underwent plastic surgery for correcting body contours. The average age of the patients at the time of plastic surgery was 19.7 years; 3 (60%) patients were female. Abdominoplasty was performed in all patients (100%), crural dermolipectomy in 4 (80%) patients, brachial dermolipectomy in 2 (40%) patients, thoracoplasty in 2 (40%) patients, torsoplasty in 2 (40%) patients, and a reverse abdominoplasty in 1 (20%) patient. In addition, mammoplasty with inclusion of silicone implants was performed in 2 (40%) female patients, whereas the other female patient (20%) underwent mastopexy. A male patient (20%) underwent correction of gynecomastia. An average of 3 surgical interventions were performed on each patient (range, 2 - 5), and the number of surgical sites was 20. RESULTS: Dehiscence occurred in 3 (15% of the surgical sites) cases, and it was necessary to revise the resection because of residual skin laxity in 3 (15% of the surgical sites) patients. CONCLUSIONS: Some factors associated with body contouring plastic surgeries in adolescents were identified and compared with the literature data.
  • article 37 Citação(ões) na Scopus
    Living Related Donor Liver Transplantation in Children
    (2011) TANNURI, A. C. A.; GIBELLI, N. E. M.; RICARDI, L. R. S.; SANTOS, M. M.; MAKSOUD-FILHO, J. G.; PINHO-APEZZATO, M. L.; SILVA, M. M.; VELHOTE, M. C. P.; AYOUB, A. A. R.; ANDRADE, W. C.; LEAL, A. J.; MIYATANI, H. T.; TANNURI, U.
    Objective. The objective of this study was to report our experience with pediatric orthotopic liver transplantation (OLT) with living related donors. Methods. We performed a retrospective chart analysis of 121 living related donor liver transplantations (LRDLT) from June 1998 to June 2010. Results. Indications were biliary atresia (BA; n = 81), primary sclerosing cholangitis (n = 5), alpha-1 antitrypsin deficiency (n = 4); cholestasis (n = 9), fulminant hepatic failure (n = 8), autoimmune hepatitis (n = 2), Alagille syndrome (n = 4), hepatoblastoma (n = 3), tyrosinemia (n = 2), and congenital hepatic fibrosis (n = 3). The age of the recipients ranged from 7-174 months (median, 22) and the weights ranged from 6-58 kg (median, 10). Forty-nine children (40.5%) weighed <= 10 kg. The grafts included the left lateral segment (n = 108), the left lobe (n = 12), and the right lobe (n = 1). The donors included 71 mothers, 45 fathers, 2 uncles, 1 grandmother, 1 grandfather, and 1 sister with a median age of 29 years (range, 16-53 ys) and a median weight of 68 kg (range, 47-106). Sixteen patients (12.9%) required retransplantation, most commonly due to hepatic artery thrombosis (HAT; n = 13; 10.7%). The other complications were biliary stenosis (n = 25; 20.6%), portal vein thrombosis (PVT; n = 11; 9.1%), portal vein stenosis (n = 5; 4.1%), hepatic vein stenosis (n = 6; 4.9%), and lymphoproliferative disorders (n = 8; 6.6%). The ultimate survival rate of recipients was 90.3% after 1 year and 75.8% after 3 years. Causes of early death within 1 month were HAT (n = 6), PVT (n = 2), severe graft dysfunction (n = 1), sepsis (n = 1), and intraoperative death in children with acute liver failure (n = 2). Causes of late deaths included lymphoproliferative disease (n = 3), chronic rejection (n = 2), biliary complications (n = 3), and recurrent disease (n = 3; hepatoblastoma and primary sclerosing cholangitis). Conclusions. Despite the heightened possibility of complications (mainly vascular), LRDLT represented a good alternative to transplantation from cadaveric donors in pediatric populations. It was associated with a high survival ratio.
  • article 15 Citação(ões) na Scopus
    Rex Shunt for Acute Portal Vein Thrombosis After Pediatric Liver Transplantation in Children With Biliary Atresia
    (2011) GIBELLI, N. E. M.; TANNURI, A. C. A.; TANNURI, U.; SANTOS, M. M.; PINHO-APEZZATO, M. L.; MAKSOUD-FILHO, J. G.; VELHOTE, M. C. P.; AYOUB, A. A. R.; SILVA, M. M.; ANDRADE, W. C.
    Background/Purpose. Posttransplantation portal vein thrombosis (PVT) can have severe health consequences, and portal hypertension and other consequences of the long-term privation of portal inflow to the graft may be hazardous, especially in young children. The Rex shunt has been used successfully to treat PVT patients since 1998. In 2007, we started to perform this surgery in patients with idiopathic PVT and late posttransplantation PVT. Herein we have reported our experience with this technique in acute posttransplantation PVT. Methods. Three patients of ages 12, 15, and 18 months underwent cadaveric (n = 1) or living donor (n = 2) orthotopic liver transplantation (OLT). All patients had biliary atresia with portal vein hypoplasia; they developed acute PVT on the first postoperative day. They underwent a mesenteric-portal surgical shunt (Rex shunt) using a left internal jugular vein autograft (n = 2) or cadaveric iliac vein graft (n = 1) on the first postoperative day. Results. The 8-month follow-up has confirmed shunt patency by postoperative Doppler ultrasound. There have been no biliary complications to date. Conclusions. The mesenteric-portal shunt (Rex shunt) using an autograft of the left internal jugular or a cadaveric vein graft should be considered for children with acute PVT after OLT. These children usually have small portal veins; reanastomosis is often unsuccessful. In addition, this technique has the advantage to avoid manipulation of the hepatic hilum and biliary anastomosis. Although this study was based on a limited experience, we concluded that this technique is feasible, with great benefits to and low risks for these patients.
  • conferenceObject
    Differences between short- and long-term outcomes of laparoscopic sleeve gastrectomy in adolescence
    (2019) YBARRA, Marina; FRANCO, Ruth Rocha; SANTOS, Tiago Jeronimo dos; RACHID, Ludmilla; BEZERRA, Marilia P. C.; COMINATO, Louise; DAMIANI, Durval; VELHOTE, Manoel Carlos Prieto
  • conferenceObject
    Laparoscopic Sleeve Gastrectomy in Adolescents: A Safe and Effective Treatment
    (2015) FRANCO, R.; YBARRA, M.; COMINATO, L.; VELHOTE, M.; DAMIANI, D.
  • article 5 Citação(ões) na Scopus
    Midgut volvulus after laparoscopic appendectomy
    (2012) MACEDO, Maurício; VELHOTE, Manoel Carlos Prieto
    The authors report a case of a 13-year old child who was submitted to a laparoscopic appendectomy and developed, during the postoperative period, an intestinal obstruction caused by small bowel volvulus in the absence of a congenital malrotation.