Evidence map›Paper›PMID 27904723›Full record

ArticleClinics in orthopedic surgery2016

Why Cannot Suction Drains Prevent Postoperative Spinal Epidural Hematoma?

Dong Ki Ahn, Won Shik Shin, Jin Woo Kim, Seong Min Yi

Open access · diamondAbstract read
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Article in Clinics in orthopedic surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Dong Ki AhnDepartment of Orthopedic Surgery, Seoul Sacred Heart General Hospital, Seoul, Korea.
Won Shik ShinDepartment of Orthopedic Surgery, Seoul Sacred Heart General Hospital, Seoul, Korea.
Jin Woo KimDepartment of Orthopedic Surgery, Seoul Sacred Heart General Hospital, Seoul, Korea.
Seong Min YiDepartment of Orthopedic Surgery, Seoul Sacred Heart General Hospital, Seoul, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative spinal epidural hematoma (POSEH) is different from spontaneous or post-spinal procedure hematoma because of the application of suction drains. However, it appeared that suction drains were not effective for prevention of POSEH in previous studies. The purpose of this study was to test our hypothesis that POSEH can be caused by hypercoagulability.

methodsThis was an experimental study. One hundred fifty milliliters of blood was donated from each of the 12 consecutive patients who underwent spine surgery and infused into 3 saline bags of 50 mL each. One of the 3 bags in each set contained 5,000 units of thrombin. All of them were connected to 120 ± 30 mmHg vacuum suctions: drainage was started 8 minutes after connection to the vacuum system for 12 normal blood bags (BV8) and 12 thrombin-containing blood bags (TBV8) and 15 minutes after connection for the remaining 12 normal blood bags (BV15). The amount of initial and remaining hematoma at 20 minutes, 120 minutes, and 24 hours after vacuum application were measured by their weight (g). The primary endpoint was the difference between BV8 and TBV8. The secondary end point was the difference between BV8 and BV15.

resultsThe remaining hematoma in TBV8 was significantly greater than that in BV8 at all measurement points: 46.3 ± 12.4 vs. 17.0 ± 1.3 (

conclusionsWith a suction drain in place, the amount of remaining hematoma could be affected by coagulability. Thrombin-containing local hemostatics and the length of time elapsed before the commencement of suction resulted in hypercoagulability, indicating these two factors could be causes of POSEH.

Indexed as

Blood Physiological PhenomenaHematoma, Epidural, SpinalModels, BiologicalPostoperative ComplicationsAgedDrainageFemaleHumansMaleMiddle AgedThrombinTime FactorsThrombinHypercoagulabilityPostoperative spinal epidural hematomaSuction drain

Identifiers

PMID27904723
PMCPMC5114253
OpenAlexW2550878921

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.