Subarachnoid Hemorrhage

Yesterday, I was informed that my customer, who is a dentist, had been hospitalized with subarachnoid hemorrhage from ruptured intracranial aneurysms.
昨日、私の顧客である歯医者の先生が、脳動脈瘤破裂によるくも膜下出血で入院していたことを知りました。

The subarachnoid hemorrhage refers to the state in which the blood was mixed in the cerebrospinal fluid, caused by bleeding in a subarachnoid space in a brain.
くも膜下出血とは、脳内のくも膜下腔に出血が生じ、脳髄液中に血液が混入した状態を指します。

This is a horrible disease, it is said that about one-third will die at the same time as the bleeding, and only one-third can return to society.
これは恐ろしい病気で、約1/3は出血と同時に死んでしまい、社会復帰できるのもまた約1/3だと言われています。

I was really relieved, because the dentist got back into society a few days ago.
その先生は、最近社会復帰できたようで、本当に安心しました。