
Explaining vasovagal syncope
I see the user's message is in Chinese about Oscar being diagnosed with vasovagal syncope and his condition being stable. It looks like they might want a summary or some context. I’ll briefly explain vasovagal syncope, including its typical causes, what "stable" means, and general recovery protocols. I could also mention common tests and red flags without offering medical advice specific to Oscar's case since I don’t have all the details.
简要科普:迷走神经性晕厥是一种最常见的“反射性”昏厥。因迷走神经过度兴奋导致心率与血压短时间下降,脑供血不足而晕倒,通常很快自行恢复,“目前情况稳定”常见于这类情况。
要点
- 常见诱因:情绪/疼痛刺激、闷热环境、脱水与疲劳、久站、突然起身。
- 前驱症状:头晕眼黑、恶心出汗、面色苍白、心悸,短暂意识丧失,平卧抬腿后好转。 
- 风险与评估:整体多为良性,但运动中发作的运动员通常会做心电图、心脏超声、血液电解质/血糖、必要时动态心电图或倾斜试验,以排除心源性风险。
- 处理与恢复:当下让其平卧抬腿、补液休息;短期内避免诱因(脱水、闷热、过度疲劳)。待医生排除风险后,循序恢复训练与比赛,恢复期从数天到数周不等,遵医嘱。 
- 何时需要进一步就医:反复发作、伴胸痛/持续心悸、受伤、家族心脏性猝死史等。
需要我整理运动员“返赛”评估流程的清单,或做一个给球迷看的简明科普图吗?