Human Reproduction, Vol. 10, No. 1, pp. 161-164, 1995
© 1995 European Society of Human Reproduction and Embryology
Intra-observer and inter-observer variability in scoring laparoscopic diagnosis of pelvic adhesions
Departments of Obstetrics and Gynecology, University of Pennsylvania School of Medicine, Pennsylvania Hospital, Philadelphia Fertility Institute Philadelphia, PA, USA 2 Pulmonary and Critical Care, University of Pennsylvania School of Medicine, Pennsylvania Hospital, Philadelphia Fertility Institute Philadelphia, PA, USA
Correspondence: 1To whom correspondence should be addressed at: 815 Locust Street, Philadelphia, PA 19107–5507, USA
The objective of this study was to investigate intra-observer as well as inter-observer variability in the assessment of laparoscopic scoring of adhesive disease. Patients with suspected pelvic adhesions underwent a laparoscopic examination and surgical correction, using a standardized adhesion scoring system for severity as well as for extent of the adhesive process. An active agent or placebo was placed in the peritoneal cavity to discourage reformation of adhesions on a double-blind basis. A second laparoscopy was performed in 6–10 weeks and patients were re-scored. The videotapes were viewed and re-scored by the operator and four other gynaecological surgeons on two occasions, 3 months apart. Both adhesion severity and extent scores were lower following laparoscopic intervention. Reliability coefficients as defined by intra-class correlations were large indicating good reliability (0.778 and 0.758 for severity and extent respectively). Intra-observer (replication) variability was 12% of the total versus 19% for inter-observer variability of adhesion severity. These values were 15.4 and 22.3% of the total respectively, for adhesion extent. Individual observers tended to up-grade severity and minimize extent of adhesions when comparing the second with the first videotape views. The surgeon recorded greater adhesion score differences between the two procedures than the other observers. Though two physicians consistently had higher scores than two others, the intra-observer and inter-observer variabilities were acceptable. Consultant review of high quality videotaped laparoscopic procedures is a valid method of independent assessment of operative findings.
Key words: laparoscopic scoring/pelvic adhesions
Submitted on July 12, 2005; accepted on September 21, 1994.
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