Department of Obstetrics & Gynecology, Division of Global Women's Health, University of North Carolina Project-Malawi, Lilongwe, Malawi.
Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina, USA.
Int J Cancer. 2021 Jul 15;149(2):371-377. doi: 10.1002/ijc.33549. Epub 2021 Mar 23.
Malawi has the highest invasive cervical cancer (ICC) mortality rate worldwide, and ICC is the leading cause of cancer death among women. In 2004, Malawi adopted visual inspection with acetic acid (VIA) and ablative treatment with cryotherapy. However, screening coverage has remained low (<30%) and few women (<50%) who require ablative treatment receive it. Additional barriers include long distances to health facilities and challenges with maintaining gas supplies. Thermal ablation is a safe and effective alternative to cryotherapy. We assessed the safety and uptake of community-based ICC screening with VIA and same-day treatment using a handheld thermocoagulator (HTU) in rural Malawi. We held educational talks alongside community leaders and conducted VIA screening in nonclinic community settings to nonpregnant women aged 25 to 49 years without history of hysterectomy or genital cancer/precancer. Eligible women received same-day thermal ablation and HIV testing/counseling. We collected cervical biopsies before treatment and followed up women at Weeks 6 and 12, with repeat biopsy at Week 12. Between July and August 2017, 408 (88%) of 463 eligible women underwent VIA. Overall, 7% (n = 30) of women had a positive VIA, of whom 93% (n = 28) underwent same-day thermal ablation. Among the 30 VIA-positive women, 5 had cervical intraepithelial neoplasia (CIN) 1, 4 had CIN 2/3 and 21 had benign histologic findings. Abnormal vaginal discharge (60%) and light vaginal bleeding (52%) were the most reported adverse events. There was high uptake of the community-based ICC screening in the study population and treatment was safe in this setting. Similar strategies that minimize false-positive results are urgently needed in Malawi.
马拉维的浸润性宫颈癌(ICC)死亡率居全球之首,ICC 也是导致该国女性癌症死亡的首要原因。2004 年,马拉维开始采用醋酸视觉检查(VIA)和冷冻消融切除术进行筛查。然而,筛查覆盖率一直较低(<30%),且仅有少数(<50%)需要消融治疗的女性接受了治疗。其他障碍包括到医疗机构的路途遥远,以及维持气体供应方面的挑战。热消融是冷冻消融的一种安全有效的替代方法。我们评估了在马拉维农村地区,采用 VIA 和手持热凝固器(HTU)进行当日治疗的社区为基础的 ICC 筛查的安全性和接受度。我们与社区领导人一起举办了教育讲座,并在非诊所社区环境中对 25 至 49 岁、无子宫切除术或生殖器官癌/癌前病变史的未怀孕女性进行 VIA 筛查。符合条件的女性接受了当日热消融和艾滋病毒检测/咨询。我们在治疗前采集了宫颈活检样本,并在第 6 周和第 12 周对女性进行了随访,在第 12 周时进行了重复活检。2017 年 7 月至 8 月期间,463 名符合条件的女性中有 408 名(88%)接受了 VIA 检查。总体而言,7%(n=30)的女性 VIA 检查呈阳性,其中 93%(n=28)接受了当日热消融。在 30 名 VIA 阳性的女性中,有 5 名患有宫颈上皮内瘤变(CIN)1 级,4 名患有 CIN 2/3 级,21 名患有良性组织学发现。异常阴道分泌物(60%)和轻微阴道出血(52%)是报告最多的不良事件。该研究人群中社区为基础的 ICC 筛查接受度很高,且该环境下的治疗是安全的。马拉维迫切需要类似的策略来尽量减少假阳性结果。