Nitrous Oxide sedation for intra-articular injection in juvenile idiopathic arthritis.
BACKGROUND
Intra-articular corticosteroid injection in juvenile idiopathic arthritis (JIA) is often associated with anxiety and pain. Recent reports advocate the use of nitrous oxide (NO), a volatile gas with analgesic, anxiolytic and sedative properties.


OBJECTIVE
To prospectively evaluate the effectiveness and safety of NO analgesia for intra-articular corticosteroid injection in JIA, and to assess patients and staff satisfaction with the treatment.


METHODS
NO was administered to JIA patients scheduled for joint injection. The patient, parent, physician and nurse completed visual-analog scores (VAS) (0-10) for pain, and a 5-point satisfaction scale. Change in heart rate (HR) during the procedure was recorded in order to examine physiologic response to pain and stress. Patient's behavior and adverse reactions were recorded.


RESULTS
54 procedures (72 joints) were performed, 41 females, 13 males; 39 Jewish, 13 Arab; mean age was 12.2 +/- 4.7 year. The median VAS pain score for patients, parents, physicians and nurses was 3. The HR increased >/= 15% in 10 patients. They had higher VAS scores as evaluated by the staff. The median satisfaction level of the parents and staff was 3.0 and 5.0 respectively. Adverse reactions were mild.


CONCLUSIONS
NO provides effective and safe sedation for JIA children undergoing intra-articular injections.
Uziel
Yosef
Y
Section of Pediatric Rheumatology, Department of Rheumatic Diseases, Cleveland Clinic, USA. hashkep@ccf.org.
Chapnick
Gil
G
Rothschild
Michal
M
Tauber
Tsivia
T
Press
Joseph
J
Harel
Liora
L
Hashkes
Philip J
PJ