- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg 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
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Tilmelding (Forventet)
Kontakter og lokationer
Studiesteder
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Zurich, Schweiz, 8091
- Rekruttering
- University Hospital Zurich
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Kontakt:
- Henrik Petrowsky, Prof, MD
- Telefonnummer: +41 44 255 30 41
- E-mail: henrik.petrowsky@usz.ch
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Kontakt:
- Dilmurodjon Eshmuminov, MD
- Telefonnummer: +41 44 255 11 11
- E-mail: dilmurodjon.eshmuminov@usz.ch
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Adult (more than 18 years) with resectable pancreatic lesion(s)
Exclusion Criteria:
- Total pancreatectomy
- Unresectable pancreatic lesion(s)
- Pregnancy
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Kohorte
- Tidsperspektiver: Fremadrettet
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
|---|---|
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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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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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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.
Tidsramme: within the 30 days after surgery
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within the 30 days after surgery
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Studiestol: Henrik Petrowsky, Prof, MD, University of Zurich
Publikationer og nyttige links
Generelle publikationer
- 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.
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- POPF-0134
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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