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Chest. 2003 Dec;124(6):2256-60.

The effect of vasopressin on gastric perfusion in catecholamine-dependent patients in septic shock.

Author information

  • 1Department of Intensive Care Medicine, Jeroen Bosch Hospital, PO Box 90153, 5200 ME 's-Hertogenbosch, the Netherlands. fvharen@planet.nl

Abstract

OBJECTIVE:

To study the effect of continuous infusion of vasopressin on the splanchnic circulation in patients with severe septic shock.

DESIGN:

Prospective clinical study.

SETTING:

ICU in a teaching hospital.

PATIENTS:

Eleven consecutive patients with documented septic shock who remained hypotensive despite norepinephrine infusion at a rate > or =0.2 microg/kg/min.

INTERVENTIONS:

Insertion of a gastric tonometry catheter, and continuous infusion of vasopressin 0.04 U/min during 4 h.

MEASUREMENTS AND MAIN RESULTS:

Difference between gastric and arterial CO(2) partial pressure (P[g-a]CO(2) gap), mean arterial pressure, and cardiac index were recorded at baseline and after 15 min, 30 min, 60 min, 120 min, and 240 min.

RESULTS:

The median P(g-a)CO(2) gap increased from 5 mm Hg at baseline to 19 mm Hg after 4 h (p = 0.022). Mean arterial pressure increased from 61 +/- 13 mm Hg at baseline to 68 +/- 9 mm Hg after 4 h (p = 0.055). No significant changes in cardiac index were noted.

CONCLUSIONS:

In norepinephrine-dependent patients in septic shock, continuous infusion of low-dose vasopressin results in a significant increase of the P(g-a)CO(2) gap compatible with GI hypoperfusion.

PMID:
14665508
[PubMed - indexed for MEDLINE]
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