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Table 3 Safety analyses

From: Valproic acid as adjuvant treatment for convulsive status epilepticus: a randomised clinical trial

 

Placebo (n = 118)

Valproic acid (n = 126)

P

Adverse events

Patients with at least one AE

52 (44%)

45 (36%)

0.19*

Patients with multiple AEs

27 (23%)

19 (15%)

 

Number of AEs

102

71

0.088

Serious adverse events

Patients with at least one SAE

27 (23%)

33 (26%)

0.56*

Patients with multiple SAEs

5 (4%)

8 (6%)

 

Number of SAEs

34

48

0.27

Severity criteria

   

 Death

3

8

 

 Life-threatening event

6

12

 

 Hospitalisation

22

23

 

 Disability or incapacity

0

1

 

 Other significant event

3

4

 

Related to the investigational drugs

3

0

 

Serious adverse events

   

 Recurrence of seizure

6

8

 

 Recurrence of status epilepticus

4

6

 

 Death

2

7

 

 Hepatic cytolysis

3

4

 

 Myocardial ischaemia

1

3

 

 Psychogenic non-epileptic seizure

0

3

 

 Septicaemia

0

3

 

 Stroke

1

2

 

 Refractory status epilepticus

1

2

 

 Pulmonary embolism

1

1

 

 Shock

1

1

 

 Fracture

2

0

 

 Pneumonia

2

0

 

 Cardiac arrest

0

1

 

 Confusion

0

1

 

 Hemiplegia

0

1

 

 Hypoglycaemia

0

1

 

 Hyponatremia

0

1

 

 Acute urinary retention

0

1

 

 Occlusive syndrome

0

1

 

 Dysrhythmia

0

1

 

 Diarrhoea

1

0

 

 Encephalopathy

1

0

 

 Pressure ulcer

1

0

 

 Hyperglycaemia

1

0

 

 Acute renal failure

1

0

 

 Acute pulmonary oedema

1

0

 

 Valproate overdosing

1

0

 

 Thrombosis

1

0

 

 Toxidermia

1

0

 

Causes of death

n = 3

n = 8

 

 Withdrawal of care due to severity of brain insult

2

5

 

  Brain tumour

0

3

 

  Brain metastases

1

0

 

  Brain tumour and stroke

0

1

 

  Stroke

0

1

 

  Dementia

1

0

 

 Withdrawal of care due to poor general status

0

1

 

 Multiple organ failure

0

1

 

 Withdrawal of care, reason unspecified

1

1

 
  1. Type and rates of declared adverse events occurring during hospital stay
  2. * Fisher’s exact test
  3. Robust Poisson model
  4. Assessed by the investigator
  5. In one patient, five recurrences of seizures were each declared an adverse event (AE)
  6. SAE Serious adverse event