Abstract
Background
Subarachnoid hemorrhage (SAH) is a devastating disease. Nimodipine is the only medical treatment shown to improve outcome of SAH patients. Human albumin (ALB) may exert neuroprotection in SAH. However, current usage of ALB in SAH is not known. We conducted an international survey of clinicians involved in the care of SAH patients to determine current practice of ALB administration in SAH.
Methods
We constructed a 27-question survey. Our sampling frame consisted of neurointensivists, general intensivists, neurocritical care nurses, critical care pharmacists, and neurosurgeons. The survey was available from 11/15/2012 to 12/15/2012. We performed mostly descriptive statistical analysis.
Results
We obtained 362 responses from a diverse range of world regions. Most respondents were intensivist physicians (88 %), who worked in academic institutions (73.5 %) with a bed capacity >500 (64.1 %) and an established institutional management protocol for SAH patients (70.2 %). Most respondents (83.5 %) indicated that their institutions do not incorporate ALB in their protocol, but half of them (45.9 %) indicated using ALB outside it. ALB administration is influenced by several factors: geographic variation (more common among US respondents); institutions with a dedicated neuroICU; and availability of SAH management protocol. Most respondents (75 %) indicated that a clinical trial to test the efficacy of ALB in SAH is needed.
Conclusions
In this survey we found that ALB administration in SAH patients is common and influenced by several factors. Majority of respondents support a randomized clinical trial to determine the safety and efficacy of ALB administration in SAH patients.
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Appendix
Appendix
Human Albumin Administration for Neuroprotection in Subarachnoid Hemorrhage (SAH) survey
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1.
Select your title (select all that apply):
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a.
M.D.
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b.
Ph.D.
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c.
D.O.
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d.
R.N.
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e.
Director of neuroicu
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f.
Staff intensivist
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g.
Neurosurgeon
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h.
Other (state):__________
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a.
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2.
Select number of years in practice, since training:
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a.
<5
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b.
6–10
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c.
11–15
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d.
16–20
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e.
>21
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a.
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3.
Select type of hospital (select all that apply):
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a.
Academic/University affiliated
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b.
Private
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c.
Community
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d.
Tertiary care
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e.
Suburban
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f.
Urban
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a.
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4.
Select location of your hospital:
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a.
US
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b.
Canada
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c.
European Union
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d.
Latin America
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e.
Australia and New Zealand
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f.
Hong Kong
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g.
Other (please indicate): _____________________________________
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a.
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5.
Number of hospital beds:
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a.
≤250
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b.
251–500
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c.
501–750
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d.
751–1,000
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e.
1,001–1,250
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f.
1,251–1,500
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g.
>1,500
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a.
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6.
Number of SAH patients per year admitted to your hospital:
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a.
≤20
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b.
21–40
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c.
41–60
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d.
61–100
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e.
>101
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a.
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7.
Are SAH patients admitted to a dedicated neuroICU in your hospital?
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a.
Yes
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b.
No
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a.
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8.
Number of beds in your ICU where SAH patients are admitted:
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a.
≤10
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b.
11–15
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c.
16–20
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d.
≥20
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a.
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9.
Does your hospital have a protocol for SAH care?
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a.
Yes
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b.
No
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a.
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10.
If the answer is Yes, does your protocol include human albumin administration?
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a.
Yes
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b.
No
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a.
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11.
If the answer is Yes, what concentration of human albumin does your protocol allow (select all that apply)?
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a.
4 %
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b.
5 %
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c.
20 %
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d.
25 %
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a.
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12.
If the answer is No, do you administer human albumin to your SAH patients outside a set protocol?
-
a.
Yes
-
b.
No
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a.
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13.
If the answer is Yes, what concentration of human albumin do you administer outside a set protocol (select all that apply)?
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a.
4 %
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b.
5 %
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c.
20 %
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d.
25 %
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a.
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14.
If you administer human albumin to SAH patients please select below the indication(s) (select all that apply):
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a.
Maintenance of normovolemia
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b.
Maintenance of hypervolemia
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c.
Delayed Cerebral Ischemia
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d.
Hypoalbuminemia
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e.
Volume resuscitation in the setting of hypotension
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f.
Neuroprotection
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g.
Other (please list):_______________________________
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h.
I do not administer human albumin in SAH
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a.
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15.
Do you believe human albumin reduces frequency of delayed cerebral ischemia and vasospasm?
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a.
Yes
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b.
No
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c.
Uncertain
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a.
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16.
Do you believe human albumin improves outcome in those patients experiencing delayed cerebral ischemia and vasospasm?
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a.
Yes
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b.
No
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c.
Uncertain
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a.
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17.
How do you administer human albumin to SAH patients?
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a.
IV bolus
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b.
IV infusion
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c.
Both
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a.
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18.
If you administer human albumin, do you believe that it benefits SAH patients?
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a.
Yes
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b.
No
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c.
Uncertain
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d.
Not applicable (I do not administer human albumin)
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a.
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19.
If you do not administer human albumin in SAH, please indicate the reason:
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a.
It is a dangerous treatment
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b.
I am convinced this treatment is futile
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c.
I need more data from clinical trials showing efficacy
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d.
Usage of human albumin is administratively restricted in my hospital
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e.
Other (please state):_______________________________________
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a.
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20.
Do you believe that human albumin should not be administered in certain patients with SAH?
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a.
Yes
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b.
No
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c.
Uncertain
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a.
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21.
If you answered yes to question 20, please indicate what type of patients should not be treated with human albumin:___________________________________
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22.
Whether or not you administer human albumin, do you believe that a clinical trial is needed to test the efficacy and safety of human albumin in SAH patients?
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a.
Yes
-
b.
No
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c.
Uncertain
-
a.
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23.
In light of the neutral results of the ALIAS study (25 % Albumin In Ischemic Stroke) and the association of poor clinical outcome and 4 % albumin in TBI patients from the SAFE study (post hoc analysis), do you still believe that a clinical trial is needed to test the safety and efficacy of human albumin in SAH patients?
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a.
Yes
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b.
No
-
a.
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24.
If your answer is Yes, please indicate the reason (select all that apply):
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a.
SAH is a distinct disease
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b.
Need to determine efficacy of currently used treatment
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c.
Need to establish safety of this therapy
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d.
The cost effectiveness of this therapy needs to be established for SAH
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e.
The ALISAH pilot study* showed promising preliminary data
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f.
Other (please state): _________________________________________
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a.
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25.
If your answer is No, please indicate the reason (select all that apply):
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a.
We have sufficient evidence from other studies to extrapolate to SAH
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b.
Human albumin is harmful
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c.
Human albumin is too expensive
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d.
I already believe that human albumin is effective in SAH
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e.
Other (please state): _________________________________________
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a.
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26.
If a clinical trial is conducted to test the efficacy of 25 % human albumin in SAH as neuroprotectant compared to saline placebo, which absolute beneficial treatment effect threshold as determined by the Glasgow Outcome Scale will make you use this treatment in most SAH patients?
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a.
5 %
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b.
8 %
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c.
10 %
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d.
15 %
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e.
20 %
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f.
Other (please state): ________________________________________
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a.
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27.
If a clinical trial is conducted to test the efficacy of 25 % human albumin in SAH as neuroprotectant compared to saline placebo, would you like to see a positive effect in surrogate endpoints such as fewer infarcts on head imaging studies?
-
a.
Yes
-
b.
No
-
c.
Uncertain
-
a.
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Suarez, J.I., Martin, R.H., Calvillo, E. et al. Human Albumin Administration in Subarachnoid Hemorrhage: Results of an International Survey. Neurocrit Care 20, 277–286 (2014). https://doi.org/10.1007/s12028-013-9942-y
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DOI: https://doi.org/10.1007/s12028-013-9942-y