Thermo-coagulation versus cryotherapy for treatment of cervical precancers: A prospective analytical study in a low-resource African setting.

Aims: To evaluate the outcomes of cryotherapy and thermo-coagulation in the treatment of cervical precancers.

Method: Prospective analytical study. Women who screened positive to visual inspection with acetic acid and confirmed by colposcopy using the Swede's score were randomized to receive either cryotherapy or thermo-coagulation. Participants were re-evaluated 6 months later.

Results: A total of 11 124 women were screened. Only 1023 of the 1294 colposcopically confirmed positive cases were eligible for ablative therapy. Five hundred and twelve women received cryotherapy while 511 women received thermo-coagulation. Cryotherapy had similar cure rate with thermo-coagulation (85.5 vs 89.2%, P = 0.09). The mean patient satisfaction score for thermo-coagulation was higher than that for cryotherapy (3.9 ± 1.3 vs 2.8 ± 1.7; P < 0.0001). The mean duration of treatment per patient was higher for cryotherapy than thermo-coagulation (660.0 ± 0.0 vs 50.9 ± 15.3 s, P < 0.0001). The mean cost of treatment per patient was significantly higher for cryotherapy than for thermo-coagulation (2613.1 ± 254.9 vs 533.2 ± 45.2 Nigerian Naira, P < 0.0001). Higher proportion of women who had thermo-coagulation reported no side effect (55.2 vs 12.5%, P < 0.0001).

Conclusion: Cryotherapy and thermo-coagulation have similar efficacy in the treatment of cervical precancers. Thermo-coagulation offers lower cost and lower duration of treatment, less side effects and higher patient satisfaction than cryotherapy. Thermo-coagulation should be the recommended ablative treatment method for low-resource settings of the world.