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The purpose of this study is to determine whether hypertonic saline is as much effective as mannitol to treat intracranial hypertension after traumatic brain injury and has at least the same effects on PtiO2 and cerebral metabolism studied through microdialysis.
Mannitol is frequently used to treat intracranial hypertension after TBI. However, it can be deleterious, particularly through hyperdiuresis and risks of hypovolemia. It also needs volume compensation and induces logistical problem because of needs of high infused volume to achieve osmolar load and avoid hypotension. Finally, some recent studies tend to prove superiority of hypertonic saline versus mannitol on the prognosis of TBI. especially through modulation of inflammatory reactions mechanisms and apoptosis.
We would like to prove non inferiority of hypertonic saline versus mannitol after TBI to allow its large utilization, especially by field military doctors with specific logistical problems. For that, more than the single Intracranial Pressure, we want to study effects of HS vs mannitol not only on PtiO2 but also on cerebral microdialysis which gives informations on focal metabolism with profiles of ischemia, metabolic crisis, hyperglycolysis (possible reflect of neuronal restoration) and normality.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Mannitol | Active Comparator |
| |
| Hypertonic saline | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Hypertonic saline | Drug | 2 mL/kg of 7.5% hypertonic saline associated to hydroxyethyl starch |
|
| Measure | Description | Time Frame |
|---|---|---|
| Effects of HS versus mannitol on lactate/pyruvate ratio | 20 min, 40 min, H1, H2, H3 and H4 |
| Measure | Description | Time Frame |
|---|---|---|
| Metabolic profile evaluated thanks to measure of lactate/pyruvate ratio and cerebral glucose | 20 min, 40 min, H1, H2, H3 and H4 | |
| Duration of PtiO2 > 15 mm Hg if PtiO2 was < 15 mm Hg before osmotherapy | 20 min, 40 min, H1, H2, H3 et H4 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Henry BORET, MD | Direction Centrale du Service de Santé des Armées | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| HIA Sainte Anne | Toulon | 83130 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 12794404 | Background | Vialet R, Albanese J, Thomachot L, Antonini F, Bourgouin A, Alliez B, Martin C. Isovolume hypertonic solutes (sodium chloride or mannitol) in the treatment of refractory posttraumatic intracranial hypertension: 2 mL/kg 7.5% saline is more effective than 2 mL/kg 20% mannitol. Crit Care Med. 2003 Jun;31(6):1683-7. doi: 10.1097/01.CCM.0000063268.91710.DF. | |
| 17297315 |
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| ID | Term |
|---|---|
| D000070642 | Brain Injuries, Traumatic |
| ID | Term |
|---|---|
| D001930 | Brain Injuries |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D012462 | Saline Solution, Hypertonic |
| D008353 | Mannitol |
| ID | Term |
|---|---|
| D006982 | Hypertonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |
| D013402 | Sugar Alcohols |
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| Mannitol | Drug | Mannitol |
|
| Duration of ICP<20 mm Hg after osmotherapy | 20 min, 40 min, H1, H2, H3 and H4 |
| Interstitial osmolarity | 20 min, 40 min and H1 |
| Necessity of a third line therapy (hypothermia, craniectomy, propofol/barbiturate coma | Day after osmotherapy |
| Length of stay | After leaving the unit |
| Mortality | 28th days |
| Glasgow outcome scale | 6th month |
| Sakowitz OW, Stover JF, Sarrafzadeh AS, Unterberg AW, Kiening KL. Effects of mannitol bolus administration on intracranial pressure, cerebral extracellular metabolites, and tissue oxygenation in severely head-injured patients. J Trauma. 2007 Feb;62(2):292-8. doi: 10.1097/01.ta.0000203560.03937.2d. |
| 16787640 | Background | Soustiel JF, Vlodavsky E, Zaaroor M. Relative effects of mannitol and hypertonic saline on calpain activity, apoptosis and polymorphonuclear infiltration in traumatic focal brain injury. Brain Res. 2006 Jul 26;1101(1):136-44. doi: 10.1016/j.brainres.2006.05.045. Epub 2006 Jun 19. |
| D006259 |
| Craniocerebral Trauma |
| D020196 | Trauma, Nervous System |
| D014947 | Wounds and Injuries |
| D000438 |
| Alcohols |
| D009930 | Organic Chemicals |
| D002241 | Carbohydrates |