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- Ensaio Clínico NCT02589379
Ultrasound Elastography for Prediction of Postoperative Pancreatic Fistula (PMPPOPF)
The Value of Endoscopic Ultrasound Elastography for Prediction of Pancreatic Fistula in Patients Undergoing Pancreatic Resection for Benign or Malignant Disease
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
One of the most generally accepted causes of postoperative pancreatic fistula (POPF) is soft texture of the pancreas. The stiffness of organs depends on histologic features such as content of fat, fibrotic tissue and micro vascular structures. Yet, pancreatic stiffness was evaluated only subjectively. Endoscopic ultrasonography (EUS) and magnetic resonance imaging (MRI) may allow objective quantification of pancreatic stiffness prior to surgery.
Endoscopic ultrasound elastography (EUE) is based on real-time Doppler technology. Image colors are derived from vibration patterns which depend on the stiffness of a specific region of the investigated organ. The retrieved images could be converted into numeric matrix using a specially designed program.
Magnetic resonance imaging (MRI) is a non-invasive method for quantitatively assessing the mechanical properties of tissues based on fat tissue content.
In this trial the investigators will assess at first the value of EUE and MRI in predicting development of postoperative pancreatic fistula and in a next step the value EUE and MRI as an objective method in prediction of pancreatic stiffness.
Tipo de estudo
Inscrição (Antecipado)
Contactos e Locais
Locais de estudo
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Zurich, Suíça, 8091
- Recrutamento
- University Hospital Zurich
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Contato:
- Henrik Petrowsky, Prof, MD
- Número de telefone: +41 44 255 30 41
- E-mail: henrik.petrowsky@usz.ch
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Contato:
- Dilmurodjon Eshmuminov, MD
- Número de telefone: +41 44 255 11 11
- E-mail: dilmurodjon.eshmuminov@usz.ch
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- Adult (more than 18 years) with resectable pancreatic lesion(s)
Exclusion Criteria:
- Total pancreatectomy
- Unresectable pancreatic lesion(s)
- Pregnancy
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Modelos de observação: Coorte
- Perspectivas de Tempo: Prospectivo
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
|---|---|
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Pancreatic Resection
All consecutive patients undergoing pancreatic resection for benign or malignant disease and meet inclusion criteria.
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Endoscopic ultrasound elastography, intraoperative ultrasound elastography and magnet resonance imaging to asses pancreatic stiffness prior to pancreatic resection
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
|---|---|
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POPF rate (in %) as defined by the International Study Group on Pancreatic Fistula (ISGPF) in the soft versus hard pancreas group based on the median EUE stiffness measurements generated by values derived from hue histograms.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Pearson correlation coefficient between preoperative EUE measurements of pancreatic stiffness generated by values derived from hue histograms with the fat content (in %) of the resected specimen on histology.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
|
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Pearson correlation coefficient between preoperative EUE measurements of pancreatic stiffness generated by values derived from hue histograms with intra-operative ultrasound elastography measurements generated by values derived from hue histograms.
Prazo: within the 30 days after surgery
|
within the 30 days after surgery
|
|
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Postoperative pancreatic fistula rate (in %) as defined by the ISGPF in the soft versus hard pancreas group based on the median MRI fat measurement (in %) on histology.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
|
|
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Pearson correlation coefficient between preoperative MRI measurements of pancreatic fat (in %) with the fat content (in %) of the resected specimen on histology.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
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Postoperative pancreatic fistula rate (in %) as defined by the ISGPF in the soft versus hard pancreas group based on the surgeons assessment of stiffness on a visual analogue scale from soft (0) to hard (10) intraoperatively.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
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Pearson correlation coefficient between the two surgeons assessing pancreatic stiffness intraoperatively.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
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Intraclass correlation coefficient of the all measurements derived from EUE, IUE, MRI, surgeons assessment and histology.
Prazo: within the 30 days after surgery
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within the 30 days after surgery
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within the 30 days after surgery
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Cadeira de estudo: Henrik Petrowsky, Prof, MD, University of Zurich
Publicações e links úteis
Publicações Gerais
- Bassi C, Dervenis C, Butturini G, Fingerhut A, Yeo C, Izbicki J, Neoptolemos J, Sarr M, Traverso W, Buchler M; International Study Group on Pancreatic Fistula Definition. Postoperative pancreatic fistula: an international study group (ISGPF) definition. Surgery. 2005 Jul;138(1):8-13. doi: 10.1016/j.surg.2005.05.001.
- Lin JW, Cameron JL, Yeo CJ, Riall TS, Lillemoe KD. Risk factors and outcomes in postpancreaticoduodenectomy pancreaticocutaneous fistula. J Gastrointest Surg. 2004 Dec;8(8):951-9. doi: 10.1016/j.gassur.2004.09.044.
- Mathur A, Pitt HA, Marine M, Saxena R, Schmidt CM, Howard TJ, Nakeeb A, Zyromski NJ, Lillemoe KD. Fatty pancreas: a factor in postoperative pancreatic fistula. Ann Surg. 2007 Dec;246(6):1058-64. doi: 10.1097/SLA.0b013e31814a6906.
- Nathan H, Cameron JL, Goodwin CR, Seth AK, Edil BH, Wolfgang CL, Pawlik TM, Schulick RD, Choti MA. Risk factors for pancreatic leak after distal pancreatectomy. Ann Surg. 2009 Aug;250(2):277-81. doi: 10.1097/SLA.0b013e3181ae34be.
- Saftoiu A, Vilmann P, Gorunescu F, Janssen J, Hocke M, Larsen M, Iglesias-Garcia J, Arcidiacono P, Will U, Giovannini M, Dietrich CF, Havre R, Gheorghe C, McKay C, Gheonea DI, Ciurea T; European EUS Elastography Multicentric Study Group. Efficacy of an artificial neural network-based approach to endoscopic ultrasound elastography in diagnosis of focal pancreatic masses. Clin Gastroenterol Hepatol. 2012 Jan;10(1):84-90.e1. doi: 10.1016/j.cgh.2011.09.014. Epub 2011 Oct 1.
- Sato N, Yamaguchi K, Chijiiwa K, Tanaka M. Risk analysis of pancreatic fistula after pancreatic head resection. Arch Surg. 1998 Oct;133(10):1094-8. doi: 10.1001/archsurg.133.10.1094.
- Schafer M, Mullhaupt B, Clavien PA. Evidence-based pancreatic head resection for pancreatic cancer and chronic pancreatitis. Ann Surg. 2002 Aug;236(2):137-48. doi: 10.1097/00000658-200208000-00001.
- Watanabe H, Kanematsu M, Tanaka K, Osada S, Tomita H, Hara A, Goshima S, Kondo H, Kawada H, Noda Y, Tanahashi Y, Kawai N, Yoshida K, Moriyama N. Fibrosis and postoperative fistula of the pancreas: correlation with MR imaging findings--preliminary results. Radiology. 2014 Mar;270(3):791-9. doi: 10.1148/radiol.13131194. Epub 2013 Nov 8.
- Yeh TS, Jan YY, Jeng LB, Hwang TL, Wang CS, Chen SC, Chao TC, Chen MF. Pancreaticojejunal anastomotic leak after pancreaticoduodenectomy--multivariate analysis of perioperative risk factors. J Surg Res. 1997 Feb 1;67(2):119-25. doi: 10.1006/jsre.1996.4974.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Antecipado)
Conclusão do estudo (Antecipado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- POPF-0134
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