4 . Postoperative hypertension is common after aortic valvotomy and SNP infusion may be required.的翻译：什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

翻译结果1 翻译结果2 翻译结果3 翻译结果4 翻译结果5

4。术后高血压是常见的主动脉瓣膜切开和SNP输液后，可能需要。

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