ptn unable to stand or walk also plzz suggest something

15 yrs old male pt has admitted with the complaints of vomiting 4 times followed by inability to use the lower limbs initially within one hr both upper limbs also. .quadriparesis. . pulse..irregular. BP ..96/70 mmhg. . ecg shows arrhythmia. . 1.. what are the clinical conditions that will affect both heart and nervous system. ..how will you differentiate clinically? 2..how to approach this pt? 3. ecg findings? 4..investigations and treatment? plz share your views. ...Thanks in advance. .

MRI lumbar region of a female , around 35 years, presented with bilateral lower limb weakness, sensation also lost on b/l lower limbs, bladder sensation also lost. Evolution of illness took just 3 days to complete. Patient is being treated with corticosteroid and is improving.

32 yr of male pt present with LBA n weakness of both LL. No sensory disturbances. All physio modalities tried but no improvement. MRI REPORT normal study.Can anyone can give your suggestions.

2months old increasing since birth further investigation n management