Reading ブラックジャックによろしく manga exercises (p14-and up)

Claiming 6:

Click me and the truth shall be revealed...

First part:
肝不全 心不全『に』加え…

In order to understand this sentence, I need a lot of vocabulary background. Here’s a sample:
肝不全【かんふぜん】liver failure;
心不全【しんふぜん】heart failure;
に grammatical particle;
加え【くわえ】in addition;
:question:my dictionary doesn’t list any 加え on its own. It lists: 加え. Is this a colloquial thing where the 〜て is omitted when speaking?


Second part:
…心停止(cardiac arrest)『に』よる
:speech_balloon:In addition to a liver failure, heart failure he did a cardiac arrest


Third part:

低酸素[血]症『で』…

Si the reason I put 血 in brackets is because my dictionary lists 低酸素症 as hypoxia, without 血.

Hypoxia:

Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level.

…so I assume that you can have types of hypoxia depending on the part of the body. In this case it’s blood hypoxia… or hypoxemia. Once I found out hypoxemia, I visited weblio and bingo: hypoxemia = 低酸素血症.


Fourth part:
脳細胞(brain cells)『が』やられています
やられています: 〜て+います progressive form of やられる: to suffer damage;

:speech_balloon:In addition to liver and heart failure, he had a cardiac arrest; the hypoxemia is damaging his brain cells

(My, that was complex)