CPM - need support

Hi Everyone,

I am so glad to find this forum. My father was admitted in the hospital on 29/10/09 for low sodium (95) level and was in ICU for couple of days. As doctors corrected his sodium level rapidly, he was discharged on the 6/10/09 to be fit to go home. He also had an arm injury that turned into infection during this time. However, the main issue started on the 08/10/09 when his sodium level reached 140 and we started seeing signs of neurological problems. After re-admitting him in the hospital for couple of days and fighting with doctors we realized he wasn't getting correct diagonsis.

We moved the hospital and new neurologist diagonised dad with CPM and EPM. He had tremors, slurriness, muscle spasms, blackness in front of his eyes and could walk slowly. He had stiffness in the body. After admitting him on 10/10/09, his doctor straightaway started antibiotics to control the infection and started giving him medicine used for Parkinson.
His infection cured completely and he showed improvement and got discharged on 14/10/09.

I have returned to the UK while my dad is in India and my family is taking care of him at the moment. After reading about CPM, I thank god for dad's life. However, I have questions as articles on internet scare me.

1. Can this condition deteroriate?
2. He is able to walk slowly and go for 15-20 min walk in the morning and evening in supervision. He says he feel better while walking or sitting.
3. He is bit confused and complain about blackness in front of his eyes.
4. He complain about loss of appetite.
5. He has become stubborn and look lost. However, if some visitor comes he is alert and try to talk.
6. He has become extremely emotional and cries often.

He is a civil engineer and was handling big projects, please advise on CPM improvement. It is so hard to stay far and I want to know what support can I provide to my family and my dad at this stage. God bless for all the support.

thanks