Laparoscopic Microwave Ablation and Portal Vein Ligation for Staged Hepatectomy (LAPS)
LAPS
Liver Resection After Portal Vein Ligation / Embolization and Transection Plane Devascularization With Radio Frequency / Microwave: Pilot Study on Primary and Secondary Liver Tumors
1 other identifier
interventional
10
1 country
1
Brief Summary
One of the limiting factors in the execution of a liver resection, in particular an extended liver resection, it's represented by the future remnant liver (FRL) after hepatic surgery. In cases of normal organ function an FRL of 25% is considered sufficient. In case of impaired hepatic function or a history of chemotherapy, it is considered safe if at least of 40%. Many strategies have been developed and proposed to increase the resectability in patients undergoing major liver resections. One of these is a new two-stage technique proposed recently by a group of German surgeons. This approach consists in the ligation of the right portal vein associated with resection of the liver along the falciform ligament (step 1). Step 2, after a period of 9 days (median - 5-25 days), after a volumetric CT to ensure an adeguate hypertrophy of the left lateral lobe due to the combination of right portal occlusion and segment 4 devascularization, the patient undergo a right trisectionectomy. The hypertrophy of the left lateral lobe is shown to be of 74%, higher than any other techniques of ligation or portal embolizatiol proposed in the literature. On the basis of the clinical experiences reported the investigators designed a new protocol of two-stage hepatic resection for the treatment of primary or secondary tumors of the right lobe. Step1: laparoscopic radio frequency / microwave ablation of the future transection plane between segment 4 and left lateral lobe and surgical ligation or embolization of the right portal vein. The ablation has the purpose to devascularize the segment 4 and has the same significance of the resection of the liver along the falciform ligament described by the Regensburg group. Step2: After a period of time of 9 ± 2 days, following a volumetric CT showing an adequate liver volume gain (ratio FRL / patient body weight\> 0.5), the patient undergo the second-stage surgery: laparoscopic/ laparotomic right trisectionectomy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Jun 2014
Typical duration for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2014
CompletedFirst Submitted
Initial submission to the registry
June 23, 2014
CompletedFirst Posted
Study publicly available on registry
July 9, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2017
CompletedJuly 9, 2014
July 1, 2014
2 years
June 23, 2014
July 8, 2014
Conditions
Outcome Measures
Primary Outcomes (1)
Percentage of R0 resections
Percentage of operations in which a complete oncological radicality (R0) is achived
30days after Step2
Secondary Outcomes (6)
Perioperative mortality (3 months)
3 moths
Perioperative complication (Clavien Classification)
1 month
Time to progression
12 months
Overall survival
12 and 24 months
disease free survival
12 months
- +1 more secondary outcomes
Study Arms (1)
VLS ablation/portal ligation/hepatectomy
EXPERIMENTALStep1: * exploratory laparoscopy to exclude extrahepatic disease * right portal vein ligation if surgically feasible * RF/MW ablation on the future line of transection (of segment 4 close to left lateral lobe) * radiological portal embolization within 48h form the laparoscopic procedure if the right portal vein ligation is not feasible CT volumetric scan to evaluate the left lateral lobe hypertrophy after 9±2 from Step 1 Step 2: only if FRL/body weight \> 0.5 \- laparoscopic/laparotomic right trisectionectomy
Interventions
Step1: * exploratory laparoscopy to exclude extrahepatic disease * right portal vein ligation if surgically feasible * RF/MW ablation on the future line of transection (of segment 4 close to left lateral lobe) * radiological portal embolization within 48h form the laparoscopic procedure if the right portal vein ligation is not feasible CT volumetric scan to evaluate the left lateral lobe hypertrophy after 9±2 from Step 1 Step 2: only if FRL/body weight \> 0.5 \- laparoscopic/laparotomic right trisectionectomy
Eligibility Criteria
You may qualify if:
- Patients aged between 18 and 70 years (M and F)
- Liver tumors that interests the right hepatic lobe (segments 4,5,6,7,8) with possible involvement of the caudate lobe (segment 1) or bilobar disease with less than 3 lesions in the left lateral lobe without vascular involvement and amenable to surgically resectable or ablation in the Step1.
- Absence of extrahepatic disease
- Normal hepatic function (total bilirubin \<3 mg / dL)
- Performance status: ECOG 0
- In case of liver cirrhosis MELD score \<9
- Patients without prior chemotherapy or with previous chemotherapy but with response disease
- Patients who give their consent to the intervention
You may not qualify if:
- CT Evidence of involvement of the major vessels in the future remnant liver
- Presence of more than 3 nodules in the left lateral lobe
- Presence of extrahepatic disease
- Severe hepatic impairment
- Age\> 70 years
- Previous liver surgery (prior liver resections)
- Patient receiving chemotherapy with documented disease progression
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Chirurgia Epatobiliare e Trapianto Epatico - Azienda Ospedaliera di Padova
Padua, Padova, 35100, Italy
Related Publications (10)
Schnitzbauer AA, Lang SA, Goessmann H, Nadalin S, Baumgart J, Farkas SA, Fichtner-Feigl S, Lorf T, Goralcyk A, Horbelt R, Kroemer A, Loss M, Rummele P, Scherer MN, Padberg W, Konigsrainer A, Lang H, Obed A, Schlitt HJ. Right portal vein ligation combined with in situ splitting induces rapid left lateral liver lobe hypertrophy enabling 2-staged extended right hepatic resection in small-for-size settings. Ann Surg. 2012 Mar;255(3):405-14. doi: 10.1097/SLA.0b013e31824856f5.
PMID: 22330038BACKGROUNDLang H, Sotiropoulos GC, Brokalaki EI, Radtke A, Frilling A, Molmenti EP, Malago M, Broelsch CE. Left hepatic trisectionectomy for hepatobiliary malignancies. J Am Coll Surg. 2006 Sep;203(3):311-21. doi: 10.1016/j.jamcollsurg.2006.05.290. Epub 2006 Jul 13.
PMID: 16931303BACKGROUNDJaeck D, Oussoultzoglou E, Rosso E, Greget M, Weber JC, Bachellier P. A two-stage hepatectomy procedure combined with portal vein embolization to achieve curative resection for initially unresectable multiple and bilobar colorectal liver metastases. Ann Surg. 2004 Dec;240(6):1037-49; discussion 1049-51. doi: 10.1097/01.sla.0000145965.86383.89.
PMID: 15570209BACKGROUNDFarges O, Belghiti J, Kianmanesh R, Regimbeau JM, Santoro R, Vilgrain V, Denys A, Sauvanet A. Portal vein embolization before right hepatectomy: prospective clinical trial. Ann Surg. 2003 Feb;237(2):208-17. doi: 10.1097/01.SLA.0000048447.16651.7B.
PMID: 12560779BACKGROUNDTartter PI. The association of perioperative blood transfusion with colorectal cancer recurrence. Ann Surg. 1992 Dec;216(6):633-8. doi: 10.1097/00000658-199212000-00004.
PMID: 1466616BACKGROUNDDonati M, Stavrou GA, Oldhafer KJ. Current position of ALPPS in the surgical landscape of CRLM treatment proposals. World J Gastroenterol. 2013 Oct 21;19(39):6548-54. doi: 10.3748/wjg.v19.i39.6548.
PMID: 24151380BACKGROUNDLang H, Sotiropoulos GC, Fruhauf NR, Domland M, Paul A, Kind EM, Malago M, Broelsch CE. Extended hepatectomy for intrahepatic cholangiocellular carcinoma (ICC): when is it worthwhile? Single center experience with 27 resections in 50 patients over a 5-year period. Ann Surg. 2005 Jan;241(1):134-43. doi: 10.1097/01.sla.0000149426.08580.a1.
PMID: 15622001BACKGROUNDAre C, Iacovitti S, Prete F, Crafa FM. Feasibility of laparoscopic portal vein ligation prior to major hepatectomy. HPB (Oxford). 2008;10(4):229-33. doi: 10.1080/13651820802175261.
PMID: 18806869BACKGROUNDde Santibanes E, Alvarez FA, Ardiles V. How to avoid postoperative liver failure: a novel method. World J Surg. 2012 Jan;36(1):125-8. doi: 10.1007/s00268-011-1331-0.
PMID: 22045448BACKGROUNDvan Lienden KP, Hoekstra LT, Bennink RJ, van Gulik TM. Intrahepatic left to right portoportal venous collateral vascular formation in patients undergoing right portal vein ligation. Cardiovasc Intervent Radiol. 2013 Dec;36(6):1572-1579. doi: 10.1007/s00270-013-0591-5. Epub 2013 Mar 13.
PMID: 23483283BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Umberto Cillo, MD PhD
Azienda Ospedaliera di Padova
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- full professor of general surgery, MD, PhD
Study Record Dates
First Submitted
June 23, 2014
First Posted
July 9, 2014
Study Start
June 1, 2014
Primary Completion
June 1, 2016
Study Completion
June 1, 2017
Last Updated
July 9, 2014
Record last verified: 2014-07