BACKGROUND: In 2008, cervical cancer was responsible for 275000 deaths, of which approximately 88% occurred in low- and middle-income countries. In 2009, the World Health Organization (WHO) committed to updating recommendations for use of cryotherapy for cervical intraepithelial neoplasia (CIN). METHODS AND RESULTS: We followed the WHO Handbook for Guidelines Development to develop present guidelines. An expert panel was established, which included clinicians, researchers, program directors, and methodologists. An independent group conducted systematic reviews and produced evidence summaries following the GRADE approach. GRADE evidence profiles were created for 16 key questions about the effects of cryotherapy in the presence of histologically confirmed CIN compared with no treatment and with loop electrosurgical excision procedure, as well as the use of different cryotherapy techniques. We identified a small number of randomized controlled trials or independently controlled observational studies. Surrogate outcomes were reported when evidence about outcomes critical to decision making were not available. The panel made 14 recommendations and documented factors that determined the strength and direction of the recommendations in decision tables. CONCLUSION: The present document summarizes new evidence-based WHO recommendations about the use of cryotherapy in women with histologically confirmed CIN for low-, middle-, and high-income countries.
BACKGROUND: In 2008, cervical cancer was responsible for 275000 deaths, of which approximately 88% occurred in low- and middle-income countries. In 2009, the World Health Organization (WHO) committed to updating recommendations for use of cryotherapy for cervical intraepithelial neoplasia (CIN). METHODS AND RESULTS: We followed the WHO Handbook for Guidelines Development to develop present guidelines. An expert panel was established, which included clinicians, researchers, program directors, and methodologists. An independent group conducted systematic reviews and produced evidence summaries following the GRADE approach. GRADE evidence profiles were created for 16 key questions about the effects of cryotherapy in the presence of histologically confirmed CIN compared with no treatment and with loop electrosurgical excision procedure, as well as the use of different cryotherapy techniques. We identified a small number of randomized controlled trials or independently controlled observational studies. Surrogate outcomes were reported when evidence about outcomes critical to decision making were not available. The panel made 14 recommendations and documented factors that determined the strength and direction of the recommendations in decision tables. CONCLUSION: The present document summarizes new evidence-based WHO recommendations about the use of cryotherapy in women with histologically confirmed CIN for low-, middle-, and high-income countries.
Authors: Monica Hultcrantz; David Rind; Elie A Akl; Shaun Treweek; Reem A Mustafa; Alfonso Iorio; Brian S Alper; Joerg J Meerpohl; M Hassan Murad; Mohammed T Ansari; Srinivasa Vittal Katikireddi; Pernilla Östlund; Sofia Tranæus; Robin Christensen; Gerald Gartlehner; Jan Brozek; Ariel Izcovich; Holger Schünemann; Gordon Guyatt Journal: J Clin Epidemiol Date: 2017-05-18 Impact factor: 6.437
Authors: Megan J Huchko; Jennifer Sneden; Hannah H Leslie; Naila Abdulrahim; May Maloba; Elizabeth Bukusi; Craig R Cohen Journal: Bull World Health Organ Date: 2014-01-15 Impact factor: 9.408
Authors: Hugo De Vuyst; Nelly R Mugo; Silvia Franceschi; Kevin McKenzie; Vanessa Tenet; Julia Njoroge; Farzana S Rana; Samah R Sakr; Peter J F Snijders; Michael H Chung Journal: PLoS One Date: 2014-10-24 Impact factor: 3.240
Authors: Megan J Huchko; James G Kahn; Jennifer S Smith; Robert A Hiatt; Craig R Cohen; Elizabeth Bukusi Journal: BMC Cancer Date: 2017-12-06 Impact factor: 4.430