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Elevated intracranial pressure after head trauma can be suppressed by antisecretory factor—a pilot study

Artikel i vetenskaplig tidskrift
Författare Kliment Gatzinsky
Ewa Johansson
Eva Jennische
Merna Oshalim
Stefan Lange
Publicerad i Acta Neurochirurgica
ISSN 00016268
Publiceringsår 2020
Publicerad vid Institutionen för biomedicin
Institutionen för biomedicin, avdelningen för infektionssjukdomar
Språk en
Ämnesord AF-16 ELISA, Antisecretory factor, Brain edema, Intracranial hypertension, Salovum®, Traumatic brain injury
Ämneskategorier Medicinska grundvetenskaper

Sammanfattning

© 2020, The Author(s). Background: Control of intracranial pressure (ICP) is a key element in neurointensive care for directing treatment decisions in patients with severe traumatic brain injury (TBI). The anti-inflammatory protein antisecretory factor (AF) has been demonstrated to reduce experimentally induced high ICP in animal models. This report describes the first steps to investigate the uptake, safety, and influence of AF for reduction of elevated ICP in patients with TBI in a clinical setting. Method: Four patients with severe TBI (Glasgow Coma Scale < 9) that required neurointensive care with ICP monitoring due to signs of refractory intracranial hypertension were investigated. One hundred milliliters of Salovum®, a commercially available egg yolk powder with high contents of AF peptides, was administrated either via nasogastric (patients 1 and 2) or rectal tube (patients 2, 3, and 4) every 8 h for 2 to 3 days as a supplement to the conventional neurointensive care. ICP was registered continuously. Plasma levels of AF were measured by enzyme-linked immunosorbent assay (ELISA) to confirm that Salovum® was absorbed appropriately into the bloodstream. Results: In the first two patients, we observed that when delivered by the nasogastric route, there was an accumulation of the Salovum® solution in the stomach with difficulties to control ICP due to impaired gastric emptying. Therefore, we tested to administer Salovum® rectally. In the third and fourth patients, who both showed radiological signs of extensive brain edema, ICP could be controlled during the course of rectal administration of Salovum®. The ICP reduction was statistically significant and was accompanied by an increase in blood levels of AF. No adverse events that could be attributed to AF treatment or the rectal approach for Salovum® administration were observed. Conclusions: The outcomes suggest that AF can act as a suppressor of high ICP induced by traumatic brain edema. Use of AF may offer a new therapeutic option for targeting cerebral edema in clinical practice.

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