NCT04961424

Brief Summary

This is a retrospective, observational single-center study. The studies is to investigate the incidence of posterior epidural spinal hematoma(PSEH) and recognize the risk factors for it in a cohort of patients undergoing posterior thoracic surgery in isolation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
22

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Feb 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

February 19, 2020

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 19, 2020

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 18, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

June 27, 2021

Completed
17 days until next milestone

First Posted

Study publicly available on registry

July 14, 2021

Completed
Last Updated

July 14, 2021

Status Verified

July 1, 2021

Enrollment Period

Same day

First QC Date

June 27, 2021

Last Update Submit

July 5, 2021

Conditions

Keywords

symptomatic spinal epidural hematomaposterior thoracic surgerylocal kyphosis angleoccupying ratio of cross-sectional areacerebrospinal fluid leakage.

Outcome Measures

Primary Outcomes (3)

  • Large local kyphosis angle

    The local kyphosis angle was determined by the measurement of the Cobb angle. Large local kyphosis angle creates a narrow space between the paravertebral muscles and spinal cord, especially in muscles with edema after surgery. Large local kyphosis angle is considered as a risk factor for symptomatic spinal epidural hematoma

    6 months

  • High occupying ratio of cross-sectional area

    Severe compression on spinal epidural venous plexus lead to poor elasticity of the vessel wall and impedance of blood flow. As a result, dilatation of the spinal epidural venous plexus are more often in symptomatic spinal epidural haematoma patients, contributing to the development of haematoma. Therefore, high occupying ratio of cross-sectional area is considered as a risk factors for symptomatic spinal epidural hematoma.

    6 months

  • Cerebrospinal fluid leakage

    Cerebrospinal fluid leakage provides internal pressure for the dura and its own contents, and a small haematoma does not easily induce symptoms. It is the author's hypothesis that if cerebrospinal fluid leakage occurs intraoperatively, internal pressure loss, even in a small hematoma, can cause compression. Therefore, cerebrospinal fluid leakage are considered as a risk factor for symptomatic spinal epidural hematoma

    6 months

Study Arms (2)

Symptomatic spinal epidural hematoma Group

Patients who performed thoracic decompression surgery and developed neurological deficit after surgery due to the symptomatic spinal epidural hematoma were enrolled into case group.

Control group

hose who did not develop the symptomatic spinal epidural hematoma, underwent the same procedures of similar complexity at the same section of thoracic spine in the same period (the same year or the following year) were randomly selected from the pool of patients.

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Between January 2010 and December 2019, 1612 patients were performed thoracic decompression surgery due to thoracic spinal stenosis (TSS) caused by thoracic disc herniation, ossification of posterior longitudinal ligament and ligamentum flavum with/without posterior instrumentation in our institution. The SSEH group patients were determined by symptom, MRI, intraoperative finding and underwent hematoma evacuation within one weeks of the initial surgery. For the control group, those who did not develop the SSEH, underwent the same procedures of similar complexity at the same section of thoracic spine in the same period (the same year or the following year) were randomly selected from the pool of patients.

You may qualify if:

  • Subjects satisfying the following criteria will be considered eligible for enrollment in this study:
  • Patient is ≥ 18 years and \< 80 years of age;
  • Patient who received thoracic decompression surgery via posterior approach
  • Patient who diagnosed as symptomatic spinal epidural haematoma and received revision surgery.

You may not qualify if:

  • Thoracic spinal stenosis caused by trauma, tumor, infectious, deformity and other disease;
  • Symptomatic spinal epidural haematoma happened at cervicothoracic and thoracolumbar junction;
  • Initial surgeries were performed at other hospital;
  • Incomplete clinical data.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University Third hospital

Beijing, Beijing Municipality, 100191, China

Location

Related Publications (10)

  • Leonardi MA, Zanetti M, Saupe N, Min K. Early postoperative MRI in detecting hematoma and dural compression after lumbar spinal decompression: prospective study of asymptomatic patients in comparison to patients requiring surgical revision. Eur Spine J. 2010 Dec;19(12):2216-22. doi: 10.1007/s00586-010-1483-x. Epub 2010 Jun 17.

  • Amiri AR, Fouyas IP, Cro S, Casey AT. Postoperative spinal epidural hematoma (SEH): incidence, risk factors, onset, and management. Spine J. 2013 Feb;13(2):134-40. doi: 10.1016/j.spinee.2012.10.028. Epub 2012 Dec 5.

  • Delamarter RB, Sherman J, Carr JB. Pathophysiology of spinal cord injury. Recovery after immediate and delayed decompression. J Bone Joint Surg Am. 1995 Jul;77(7):1042-9. doi: 10.2106/00004623-199507000-00010.

  • Yamada K, Abe Y, Satoh S, Yanagibashi Y, Hyakumachi T, Masuda T. Large Increase in Blood Pressure After Extubation and High Body Mass Index Elevate the Risk of Spinal Epidural Hematoma After Spinal Surgery. Spine (Phila Pa 1976). 2015 Jul 1;40(13):1046-52. doi: 10.1097/BRS.0000000000000876.

  • Fujiwara Y, Manabe H, Izumi B, Harada T, Nakanishi K, Tanaka N, Adachi N. The impact of hypertension on the occurrence of postoperative spinal epidural hematoma following single level microscopic posterior lumbar decompression surgery in a single institute. Eur Spine J. 2017 Oct;26(10):2606-2615. doi: 10.1007/s00586-017-5165-9. Epub 2017 Jun 9.

  • Kao FC, Tsai TT, Chen LH, Lai PL, Fu TS, Niu CC, Ho NY, Chen WJ, Chang CJ. Symptomatic epidural hematoma after lumbar decompression surgery. Eur Spine J. 2015 Feb;24(2):348-57. doi: 10.1007/s00586-014-3297-8. Epub 2014 Apr 24.

  • Fujita N, Michikawa T, Yagi M, Suzuki S, Tsuji O, Nagoshi N, Okada E, Tsuji T, Nakamura M, Matsumoto M, Watanabe K. Impact of lumbar hypolordosis on the incidence of symptomatic postoperative spinal epidural hematoma after decompression surgery for lumbar spinal canal stenosis. Eur Spine J. 2019 Jan;28(1):87-93. doi: 10.1007/s00586-018-5782-y. Epub 2018 Oct 9.

  • Knusel K, Du JY, Ren B, Kim CY, Ahn UM, Ahn NU. Symptomatic Epidural Hematoma after Elective Posterior Lumbar Decompression: Incidence, Timing, Risk Factors, and Associated Complications. HSS J. 2020 Dec;16(Suppl 2):230-237. doi: 10.1007/s11420-019-09690-2. Epub 2019 Jul 1.

  • Hohenberger C, Zeman F, Hohne J, Ullrich OW, Brawanski A, Schebesch KM. Symptomatic Postoperative Spinal Epidural Hematoma after Spinal Decompression Surgery: Prevalence, Risk Factors, and Functional Outcome. J Neurol Surg A Cent Eur Neurosurg. 2020 Jul;81(4):290-296. doi: 10.1055/s-0039-1697024. Epub 2020 Jan 14.

  • Mueller K, Altshuler M, Voyadzis JM, Sandhu FA. The incidence of symptomatic postoperative epidural hematoma after minimally invasive lumbar decompression: A single institution retrospective review. Clin Neurol Neurosurg. 2020 Aug;195:105868. doi: 10.1016/j.clineuro.2020.105868. Epub 2020 Apr 22.

MeSH Terms

Conditions

Hematoma, Epidural, SpinalCerebrospinal Fluid Leak

Condition Hierarchy (Ancestors)

HematomaHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsNeurologic ManifestationsNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemSigns and SymptomsWounds and Injuries

Study Officials

  • Weishi Li, M.D.

    Peking University Third Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of the orthopaedic department

Study Record Dates

First Submitted

June 27, 2021

First Posted

July 14, 2021

Study Start

February 19, 2020

Primary Completion

February 19, 2020

Study Completion

February 18, 2021

Last Updated

July 14, 2021

Record last verified: 2021-07

Data Sharing

IPD Sharing
Will share

We will make the clinical study report available for half a year after the publication of the results of the studys

Shared Documents
CSR
Time Frame
The IPD will become available for half a year after the publication of the results of the study.
Access Criteria
The IPD is available to the readers of the journal in which our research is published. The corresponding author of the published papers will review the requests

Locations