A researcher from the Hershey Medical Center, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA, identified risk factors for analgesic use following liver biopsy.
Thomas R. Riley prospectively examined 121 consecutive biopsies.
A total of 5 variables were selected that might predict analgesia use. These were anxiety, request for sedation, chronic use of addictive medications, previous intravenous drug use, and analgesia requirement with previous biopsies.
Analgesia and narcotic requirement after liver biopsy were 35% and 15%, respectively.
| Previous IV drug use increased pain medication use after biopsy by almost 10-fold.
| Digestive Diseases & Sciences |
There was a lower average age (43 vs 47) and a higher Knodell score (7.2 vs 5.8) in those that required analgesics.
It was found that the diagnosis of HCV, previous intravenous drug abuse, request for medications before biopsy, anxiety expressed, and chronic use of addictive medications all predicted analgesia use.
Furthermore, previous intravenous drug abuse (OR 9.3) and anxiety (OR 3.9) were predictive of pain medication use.
Dr Riley commented, "Patient characteristics play an important role in pain medication requirement after liver biopsy.
"If pain after liver biopsy is to be reduced, one has to understand the predisposing factors."
"Further studies utilizing behavior modification are warranted," he concluded.