脳神経外科 / 感染症 / 救急

脊椎硬膜外膿瘍 — 管理パス

背部痛+発熱+神経障害（三徴揃うのは約10–15%）。全脊椎造影MRI、緊急減圧・抗菌。

根拠：StatPearls / EMCrit。各ノードはガイドラインの判断ロジックを要約したものであり、原文の転載ではありません。 医療従事者向けの参考情報であり、臨床判断の代替ではありません。日本の関連学会指針および施設プロトコルを優先してください。

ステップごとに回答すると、結論と対応の目安が表示されます。前の質問に戻ることもできます。

ステップ 1 · Neurological deficit?
Back pain + fever ± neuro deficit — is there a neurological deficit?
💡 Pyogenic infection of the epidural space → cord injury from compression/ischemia (Staph aureus most common including MRSA, lumbar predominant). Risk factors: diabetes (most common), IV drug use, immunosuppression, alcohol misuse, spinal surgery/puncture, indwelling catheter, distant infection. The classic triad (back pain + fever + neuro deficit) is complete in only ~10–15%; back pain is most common and neuro deficit is a late sign (pain → radicular pain → motor-sensory/sphincter dysfunction → paralysis); about half are initially misdiagnosed. CRP >10 is highly sensitive (a normal value makes SEA unlikely). Diagnosis: whole-spine contrast MRI (gold standard, to find skip lesions) — non-contrast can miss it, contrast is needed.

パス全体像

  1. 【判断】Neurological deficit?
    Back pain + fever ± neuro deficit — is there a neurological deficit?（Pyogenic infection of the epidural space → cord injury from compression/ischemia (Staph aureus most common including MRSA, lumbar predominant). Risk factors: diabetes (most common), IV drug use, immunosuppression, alcohol misuse, spinal surgery/puncture, indwelling catheter, distant infection. The classic triad (back pain + fever + neuro deficit) is complete in only ~10–15%; back pain is most common and neuro deficit is a late sign (pain → radicular pain → motor-sensory/sphincter dysfunction → paralysis); about half are initially misdiagnosed. CRP >10 is highly sensitive (a normal value makes SEA unlikely). Diagnosis: whole-spine contrast MRI (gold standard, to find skip lesions) — non-contrast can miss it, contrast is needed.）
    • Neurological deficit / progressing → Deficit → emergency decompression
    • Neurologically intact, back pain and fever only → Intact · MRI + antibiotics, monitor
  2. 【終点】Intact · MRI + antibiotics, monitor
    Neurologically intact, back pain・発熱 only (still an emergency): contrast MRIへconfirm, check CRP/ESR/blood 培養s. If intact・the organism is identified, IV 抗菌薬 alone + 密な監視 may be tried (~30–40% fail; diabetes/MRSA/motor deficit predict failure → escalateへ手術). Empiric 抗菌薬 cover MRSA + Gram-negatives (vancomycin + a 3rd/4th-generation cephalosporin), obtain 培養s first where possible; course 4–8 週, guidedによりinfectious disease. Do not perform LP through the 膿瘍.
  3. 【終点】Deficit → emergency decompression
    Neurological deficit / progression: neurosurgical emergency — emergency surgical 減圧 (laminectomy) + ドレナージ/デブリドマン + IV 抗菌薬; neurological outcome depends on the preoperative status, deficits >24–36 h are often irreversible — act fast. Empiric 抗菌薬 cover MRSA + Gram-negatives (vancomycin + a 3rd/4th-generation cephalosporin), obtain blood/intraoperative cultures; course 4–8 weeks+, co-managed 〜あり infectious disease.

よくある質問

脊椎硬膜外膿瘍 — 管理パスはどの臨床課題を扱う診療パスですか？
背部痛+発熱+神経障害（三徴揃うのは約10–15%）。全脊椎造影MRI、緊急減圧・抗菌。
脊椎硬膜外膿瘍 — 管理パスの主要な意思決定ステップは何ですか？
Neurological deficit?
脊椎硬膜外膿瘍 — 管理パスはどのような対応方針を示しますか？
Intact · MRI + antibiotics, monitor：Neurologically intact, back pain・発熱 only (still an emergency): contrast MRIへconfirm, check CRP/ESR/blood 培養s. If intact・the organism is identified, IV 抗菌薬 alone + 密な監視 may be tried (~30–40% fail; diabetes/MRSA/motor deficit predict failure → escalateへ手術). Empiric 抗菌薬 cover MRSA + Gram-negatives (vancomycin + a 3rd/4th-generation cephalosporin), obtain 培養s first where possible; course 4–8 週, guidedによりinfectious disease. Do not perform LP through the 膿瘍.；Deficit → emergency decompression：Neurological deficit / progression: neurosurgical emergency — emergency surgical 減圧 (laminectomy) + ドレナージ/デブリドマン + IV 抗菌薬; neurological outcome depends on the preoperative …
脊椎硬膜外膿瘍 — 管理パスのうち直ちに対応が必要な状況はどれですか？
Deficit → emergency decompression：Neurological deficit / progression: neurosurgical emergency — emergency surgical 減圧 (laminectomy) + ドレナージ/デブリドマン + IV 抗菌薬; neurological outcome depends on the preoperative status, deficits >24–36 h are often irreversible — act fast. Empiric 抗菌薬 cover MRSA + Gram-negatives (vancomycin + a 3rd/4th-generation cephalosporin), obtain blood/intraoperative cultures; course 4–8 weeks+, co-managed 〜あり infectious disease.
脊椎硬膜外膿瘍 — 管理パスはどのガイドラインに基づいていますか？
Spinal epidural abscess (StatPearls; EMCrit IBCC; EMRA) · 準拠：StatPearls / EMCrit

出典

  • Spinal epidural abscess (StatPearls; EMCrit IBCC; EMRA)

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