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Table 2 Predefined risk factors

From: Aspin: neurosurgical aspirin intervention prognostic study — perioperative continuation versus discontinuation of aspirin in lumbar spinal surgery, a randomized controlled, noninferiority trial

Age

Sex

Type of operation

Type of spinal procedure: non-instrumented decompression, fusion procedures, spinal level, degenerative, neoplastic

Duration of surgery

Amount of preoperative thrombocytes

Prescribed aspirin dose (80 or 100 mg)

Previous cardiac or cerebral infarctions (as well as coronary artery disease and transient ischemic attack)

Duration of surgery

Type of spinal surgery

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Trials

ISSN: 1745-6215