Human Reproduction, Vol. 18, No. 11, 2441-2445,
November 2003
© 2003 European Society of Human Reproduction and Embryology
Office hysteroscopy and compliance: mini-hysteroscopy versus traditional hysteroscopy in a randomized trial
1 Centre for Minimally Invasive Surgery, Department of Gynecological Sciences and Perinatology, Policlinico Umberto I ‘La Sapienza’ Università di Roma and 2 First Clinic of Medical Statistics and Biometry, Department of Experimental Medicine and Pathology, Università di Roma ‘La Sapienza’, 00161 Rome, Italy
3 To whom correspondence should be addressed: Via G. Del Monte, 13 int. 13, 00197 Rome, Italy. e-mail: cdeangelis{at}tiscalinet.it
BACKGROUND: Diagnostic hysteroscopy has not yet been generally accepted as a well-tolerated office procedure. The aim of our study was to verify compliance, side-effects and haemodynamic variations when a mini-hysteroscope is used. METHODS: A prospective randomized trial on office hysteroscopy was performed by comparing the use of a traditional 5 mm hysteroscope (group A) and of a 3.3 mm mini-hysteroscope (group B). Two patient groups (A and B), each comprising 100 cases, were formed on the basis of a randomized computer-generated list. RESULTS: A marked reduction in the mean (± SD) pelvic pain score during office hysteroscopy was seen in group B (2.3 ± 2.1) as compared with group A (4.6 ± 2.2) (P < 0.0001, Mann–Whitney test). This result was also confirmed when using an alternative approach: four classes of pelvic pain at the visual analogue score (VAS). A significant reduction was observed in the incidence of moderate and severe pelvic pain in group B at the end of the examination (P = 0.001) and 5–10 min later (P < 0.05). CONCLUSIONS: The use of mini-hysteroscopes (3.3 mm with diagnostic sheath) lowers considerably the level of pelvic pain the patients feel: it is halved in comparison with traditional calibre hysteroscopes (2.3 ± 2.1, on a 0–10 VAS). Furthermore the outpatient hysteroscopy failure rate is less than half (2%) with the mini-hysteroscope compared with the traditional 5 mm hysteroscope (5%). As for side-effects and haemodynamic parameters, no differences were observed except for an increase (P < 0.05) in bradycardia in group B. The advantage of this technique is self-evident, if the patients’ compliance is taken into account: in many cases the introduction or withdrawal of the vaginal speculum was reported as the greatest discomfort.
Key words: compliance/mini-hysteroscopy/office hysteroscopy/pelvic pain/side-effects
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