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Acute Mesenteric Venous Thrombosis.. in Assiut University Hospital Management Controversies

NCT ID: NCT03483207

Last Updated: 2018-03-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-04-01

Study Completion Date

2019-12-31

Brief Summary

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Initial treatment in the management of acute mesenteric vein thrombosis (MVT) is controversial. Some authors have proposed a surgical approach, whereas others have advocated medical therapy (anticoagulation). In this study, the investigators analyzed and compared the results obtained with surgical and medical treatment to determine the best initial management for this disease.

Detailed Description

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Mesenteric venous thrombosis (MVT) is increasingly recognized as a cause of mesenteric ischemia. it must be distinguished from arterial and non occlusive types of ischemia, it accounts for 5% to 15% of all cases of mesenteric ischemia. Patients may have evocative signs,such as abdominal pain that is out of proportion to physical signs, nausea, or vomiting. However, a clinical diagnosis is often difficult because abdominal symptoms are non specific and high index of suspicion is often required for diagnosis.(1) Primary MVT accounted for 25% to 55% of cases in early studies, but recent reports show decline in primary MVT because of improvements in the diagnosis of hypercoagulable states.(2) Advances in new imaging techniques also have enabled early recognition of this disease without or before laparotomy.(3-5 ) Fortunately , there is no consensus about the initial management of MVT; Some authors have proposed an aggressive surgical approach (6) while others have advocated an initial conservative management with anticoagulation and close monitoring . ( 7) similarly,issue of second look laparotomy,mandatory or selective is yet not resolved.

The present study is prompted to analyze our experience in an effort to resolve these controversies and the results obtained will be assessed to determine the best management strategy for this uncommon disease.

Conditions

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Mesenteric Vein Thrombosis

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Diagnosis of acute MVT will be based on clinical presentation \&positive CT scan.(9) .patients with confirmed diagnosis of acute MVT on CT scan but having no signs of peritonitis or established CT signs of gangrene will be treated conservatively .(11)In addition to usual care ,intravenous heparin will be started and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. (12) followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. All patients will be critically monitored for the progress of response of therapy , failure to improve or worsening in condition,will be an urgent indication for surgical intervention with resection of the infarcted bowel segment .If there is suspicion about the viability of remaining bowel intraoperative or later on based on clinical evidences,then" second look" laparotomy will be perfomed .The mortality and all complications associated with surgery will be recorded.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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MVT with anticoagulation therapy(heparin &warfarin)

patients with confirmed diagnosis of acute MVT on CT scan but having no signs of peritonitis or established CT signs of gangrene will be treated conservatively with anticoagulation(heparin \&warfarin) while other cases will be for surgical management and not included in the study.

Group Type EXPERIMENTAL

Warfarin

Intervention Type DRUG

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

MVT with failure of anticoagulation therapy

Intervention Type PROCEDURE

patients managed conservatively with anticoagulation will be monitored for the progress of response of therapy , failure to improve or worsening in condition,will be an urgent indication for surgical intervention with resection of the infarcted bowel segment .If there is suspicion about the viability of remaining bowel intraoperative or later on based on clinical evidences,then" second look" laparotomy will be performed .The mortality and all complications associated with surgery will be recorded.

Heparin

Intervention Type DRUG

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

MVT with failure of anticoagulation therapy(heparin &warfarin)

patients who underwent conservative therapy with anticoagulation (heparin \&warfarin) but showed no improvement .

Group Type EXPERIMENTAL

Warfarin

Intervention Type DRUG

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

MVT with failure of anticoagulation therapy

Intervention Type PROCEDURE

patients managed conservatively with anticoagulation will be monitored for the progress of response of therapy , failure to improve or worsening in condition,will be an urgent indication for surgical intervention with resection of the infarcted bowel segment .If there is suspicion about the viability of remaining bowel intraoperative or later on based on clinical evidences,then" second look" laparotomy will be performed .The mortality and all complications associated with surgery will be recorded.

Heparin

Intervention Type DRUG

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

Interventions

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Warfarin

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

Intervention Type DRUG

MVT with failure of anticoagulation therapy

patients managed conservatively with anticoagulation will be monitored for the progress of response of therapy , failure to improve or worsening in condition,will be an urgent indication for surgical intervention with resection of the infarcted bowel segment .If there is suspicion about the viability of remaining bowel intraoperative or later on based on clinical evidences,then" second look" laparotomy will be performed .The mortality and all complications associated with surgery will be recorded.

Intervention Type PROCEDURE

Heparin

Patients with confirmed diagnosis of acute MVT but having no signs of bowel infarction will be treated conservatively with anticoagulation (heparin \&warfarin) In addition to usual care intravenous low molecular weight heparin will be started (IV bolus of 5000 IU followed by 1000 IU/hour with infusion pump) and the dose is adjusted to maintain APTT levels at 2-2.5 times the normal. followed by oral anticoagulation (warfarin) for 6 months or for life in the presence of coagulation abnormality. patients will be critically monitored for the progress of response of therapy .

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* 1\. Patients admitted in the department of surgery in Assiut University diagnosed to have mesenteric venous occlusion not presented by signs of peritonitis or confirmed radiological signs of bowel infarction.

Exclusion Criteria

1-Patients diagnosed to have mesenteric venous occlusion but with signs of peritonitis or confirmed radiological signs of bowel infarction on admission.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Dr. Hamada

Resident at General surgery department

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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Hamada Fathy

Role: CONTACT

Phone: 01098010986

Email: [email protected]

faculty of medicine faculty of medicine- assuit university

Role: CONTACT

References

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Grendell JH, Ockner RK. Mesenteric venous thrombosis. Gastroenterology. 1982 Feb;82(2):358-72. No abstract available.

Reference Type BACKGROUND
PMID: 7033036 (View on PubMed)

Zhang J, Duan ZQ, Song QB, Luo YW, Xin SJ, Zhang Q. Acute mesenteric venous thrombosis: a better outcome achieved through improved imaging techniques and a changed policy of clinical management. Eur J Vasc Endovasc Surg. 2004 Sep;28(3):329-34. doi: 10.1016/j.ejvs.2004.06.001.

Reference Type BACKGROUND
PMID: 15288639 (View on PubMed)

Harnik IG, Brandt LJ. Mesenteric venous thrombosis. Vasc Med. 2010 Oct;15(5):407-18. doi: 10.1177/1358863X10379673.

Reference Type BACKGROUND
PMID: 20926500 (View on PubMed)

Harward TR, Green D, Bergan JJ, Rizzo RJ, Yao JS. Mesenteric venous thrombosis. J Vasc Surg. 1989 Feb;9(2):328-33.

Reference Type BACKGROUND
PMID: 2918628 (View on PubMed)

Prout WG. The significance of rebound tenderness in the acute abdomen. Br J Surg. 1970 Jul;57(7):508-10. doi: 10.1002/bjs.1800570706. No abstract available.

Reference Type BACKGROUND
PMID: 5427470 (View on PubMed)

Rhee RY, Gloviczki P, Mendonca CT, Petterson TM, Serry RD, Sarr MG, Johnson CM, Bower TC, Hallett JW Jr, Cherry KJ Jr. Mesenteric venous thrombosis: still a lethal disease in the 1990s. J Vasc Surg. 1994 Nov;20(5):688-97. doi: 10.1016/s0741-5214(94)70155-5.

Reference Type BACKGROUND
PMID: 7966803 (View on PubMed)

Kumar S, Kamath PS. Acute superior mesenteric venous thrombosis: one disease or two? Am J Gastroenterol. 2003 Jun;98(6):1299-304. doi: 10.1111/j.1572-0241.2003.07338.x.

Reference Type BACKGROUND
PMID: 12818273 (View on PubMed)

Pabinger I, Schneider B. Thrombotic risk in hereditary antithrombin III, protein C, or protein S deficiency. A cooperative, retrospective study. Gesellschaft fur Thrombose- und Hamostaseforschung (GTH) Study Group on Natural Inhibitors. Arterioscler Thromb Vasc Biol. 1996 Jun;16(6):742-8. doi: 10.1161/01.atv.16.6.742.

Reference Type BACKGROUND
PMID: 8640401 (View on PubMed)

Brunaud L, Antunes L, Collinet-Adler S, Marchal F, Ayav A, Bresler L, Boissel P. Acute mesenteric venous thrombosis: case for nonoperative management. J Vasc Surg. 2001 Oct;34(4):673-9. doi: 10.1067/mva.2001.117331.

Reference Type BACKGROUND
PMID: 11668323 (View on PubMed)

Other Identifiers

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HF2018

Identifier Type: -

Identifier Source: org_study_id