Table 2 Previous research on progression of hematoma in initially conservatively treated ASDH/sASDH patients
Previous research | No. of patients | Gender (male) | Death | Poor prognosis | Delayed surgery | Risk factors |
|---|---|---|---|---|---|---|
Paul et al. (2015, USA) | 646 | 69.8% | 8.0% | 22.2% | 42 (6.5%) | Previous fall, alcohol, location (convexity), thickness, midline shifting |
Lee et al. (2015, Korea) [8] | 177 | 64.4% | NR | NR | 16 (9%) | Age, midline shifting, hematoma depth, Hounsfield unit |
Laviv (20 14, Israel) [9] | 95 | 55.8% | 20.9% | 43.2% | 43 (45.2) | IHD, HTN, ACE inhibitor, anticoagulant, clopidogrel, size of SDH |
Tomomichi et al. (2020, Japan) | 200 | 50.8% | 0 | 6.5% | 17 (8.5%) | Large hematoma brain atrophy, hematoma density |
Hyungjoo et al. (2017, Korea) | 158 | 82.1% | 7.5% | NR | 28 (17.7%) | Age, previous cerebral infarction, increased maximal hematoma thickness, midline shifting, accompanying SAH, low hemoglobin level, high leukocyte count, low glucose level |
Kim et al. (2014, Korea) [11] | 98 | 64.3% | 0 | 2% | 34 (34.7%) | Thickness, hematoma volume, midline shifting, SAH |