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1.
Int J Cancer ; 146(7): 1810-1818, 2020 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-31245842

RESUMEN

HPV FOCAL is a randomized control trial of cervical cancer screening. The intervention arm received baseline screening for high-risk human papillomavirus (HPV) and the control arm received liquid-based cytology (LBC) at baseline and 24 months. Both arms received 48-month exit HPV and LBC cotesting. Exit results are presented for per-protocol eligible (PPE) screened women. Participants were PPE at exit if they had completed all screening and recommended follow-up and had not been diagnosed with cervical intraepithelial neoplasia Grade 2 or worse (CIN2+) earlier in the trial. Subgroups were identified based upon results at earlier trial screening. There were 9,457 and 9,552 and women aged 25-65 randomized to control and intervention and 7,448 (77.8%) and 8,281 (86.7%), respectively, were PPE and screened. Exit cotest results were similar (p = 0.11) by arm for PPE and the relative rate (RR) of CIN2+ for intervention vs. control was RR = 0.83 (95% CI: 0.56-1.23). The RR for CIN2+ comparing intervention women baseline HPV negative to control women with negative cytology at baseline and at 24 months, was 0.68 (95% CI: 0.43-1.06). PPE women who had a negative or CIN1 colposcopy in earlier rounds had elevated rates (per 1,000) of CIN2+ at exit, control 31 (95% CI: 14-65) and intervention 43 (95% CI: 25-73). Among PPE women HPV negative at exit LBC cotesting identified little CIN2+, Rate = 0.3 (95% CI: 0.1-0.7). This per-protocol analysis found that screening with HPV using a 4-year interval is as safe as LBC with a 2-year screening interval. LBC screening in HPV negative women at exit identified few additional lesions.


Asunto(s)
Papillomaviridae , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/virología , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/etiología , Adulto , Anciano , Colombia Británica/epidemiología , ADN Viral , Femenino , Humanos , Tamizaje Masivo , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Vigilancia en Salud Pública , Neoplasias del Cuello Uterino/diagnóstico , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/etiología
2.
Br J Cancer ; 115(12): 1487-1494, 2016 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-27855441

RESUMEN

BACKGROUND: The HPV FOCAL Trial is a RCT comparing human papilloma virus (HPV) with Liquid Based Cytology (LBC) screening for cervical cancer. Results are presented for the comparison of the Safety and Control arms after two rounds. METHODS: HPV FOCAL included randomisation of women aged 25-65 into the Safety arm, where they were initially screened with HPV and the Control arm, where they received entry screening with LBC, with both arms screened again with LBC at 24 months. RESULTS: There are 6203 (Safety) and 6075 (Control) women included in this analysis. For the Safety vs Control arms, Round 1 screening resulted in increased detection of cervical intraepithelial neoplasia 2 or worse (CIN2+),15.3 vs 10.4 per 1000, RR=1.48 (95%CI=1.08-2.03) and higher colposcopy referral rates, 5.6% vs 3.2%. LBC screening at 24 months resulted in similar colposcopy referral rates, 1.5% vs 1.9%, and decreased CIN2+ detection, 2.0 vs 4.7 per 1000, RR=0.43 (95%CI=0.21-0.88) in the Safety vs Control arms. CIN2+ detection and colposcopy referral rates declined with increasing age in both arms. One round of HPV screening detected similar levels of CIN2+ as two rounds of LBC screening. INTERPRETATION: CIN2+ detection at 2 years was lower in those screened by HPV, indicating an improved 2-year negative predictive value of the HPV test.


Asunto(s)
Neoplasias del Cuello Uterino/diagnóstico , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad
3.
J Obstet Gynaecol Can ; 37(5): 412-420, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-26168101

RESUMEN

OBJECTIVE: To estimate the impact of implementing primary human papilloma virus liquid-based cytology (LBC) screening on four-year rates of referral for colposcopy in the British Columbia screening program. METHODS: We used data on referral for colposcopy from an RCT (HPV FOCAL) comparing HPV testing every four years with LBC testing every two years. We also used data from population screening with conventional cytology among women aged 25 to 69. The predicted effect of adoption of either trial protocol on rates of referral for colposcopy was estimated using trial age-specific result and screening result-specific rates weighted by their screening program distribution. The cumulative age-specific rates of referral for colposcopy over four years were calculated. RESULTS: Use of HPV testing initially increased rates of referral for colposcopy in the trial, but over four years the cumulative rates of referral were similar to those for LBC except in women aged 25 to 29, in whom a substantial excess persisted. Four-year rates of referral for colposcopy declined with age in women screened with HPV testing, LBC, and conventional cytology. Extrapolating the trial results to the distribution in the provincial screening program, implementation of either HPV or LBC throughout the provincial population would approximately double the current rates of referral for colposcopy. CONCLUSION: Compared with LBC screening, primary screening for HPV increased rates of referral for colposcopy only among women aged 25 to 29. In contrast to current practice, referral for colposcopy was largely driven by the trial protocol recommendations for the management of abnormal results and not by which screening test was used.


Objectif : Estimer les effets de la mise en œuvre d'un dépistage primaire du virus du papillome humain par cytologie en milieu liquide (CML) sur les taux d'orientation en colposcopie sur quatre ans, dans le cadre du programme de dépistage de la Colombie-Britannique. Méthodes : Nous avons utilisé les données sur l'orientation en colposcopie issues d'un ECR (HPV FOCAL) comparant le dépistage du VPH tous les quatre ans au dépistage par CML tous les deux ans. Nous avons également utilisé des données issues du dépistage populationnel par cytologie conventionnelle mené auprès des femmes de 25 à 69 ans. Le taux d'orientation en colposcopie en fonction de l'âge et le taux d'orientation en colposcopie en fonction des résultats de dépistage ont été pondérés en fonction de la distribution de leurs programmes de dépistage respectifs, ce qui a permis d'estimer l'effet populationnel prévu de l'adoption de l'un ou l'autre des protocoles d'essai en question sur les taux d'orientation en colposcopie. Les taux cumulatifs (en fonction de l'âge) de l'orientation en colposcopie sur quatre ans ont été calculés. Résultats : Le recours au dépistage du VPH a initialement mené à la hausse des taux d'orientation en colposcopie dans le cadre de l'essai; toutefois, sur quatre ans, les taux cumulatifs d'orientation ont été semblables à ceux de la CML, sauf chez les femmes de 25 à 29 ans (chez lesquelles un excès substantiel a persisté). Les taux d'orientation en colposcopie sur quatre ans ont connu une baisse en fonction de l'âge chez les femmes ayant fait l'objet d'un dépistage du VPH, d'une CML et d'une cytologie conventionnelle. En extrapolant les résultats de l'essai à la distribution qui existe au sein du programme provincial de dépistage, nous avons constaté que la mise en œuvre du dépistage du VPH ou de la CML au sein de la population provinciale mènerait au doublement approximatif des taux actuels d'orientation en colposcopie. Conclusion : Par comparaison avec le dépistage par CML, le dépistage primaire du VPH n'a entraîné la hausse des taux d'orientation en colposcopie que chez les femmes de 25 à 29 ans. Contrairement à la pratique actuelle, l'orientation en colposcopie était largement motivée par les recommandations du protocole d'essai en ce qui concerne la prise en charge des résultats anormaux, et non par le test de dépistage utilisé.


Asunto(s)
Colposcopía/estadística & datos numéricos , Detección Precoz del Cáncer/métodos , Tamizaje Masivo/métodos , Infecciones por Papillomavirus/diagnóstico , Derivación y Consulta/estadística & datos numéricos , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Anciano , Colombia Británica , Citodiagnóstico , Femenino , Humanos , Persona de Mediana Edad , Sensibilidad y Especificidad , Triaje , Frotis Vaginal
5.
J Obstet Gynaecol Can ; 28(3): 214-217, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16650360

RESUMEN

OBJECTIVE: The TVT-O (Ethicon, Somerville, NJ) is a new transobturator suburethral synthetic sling used in the treatment of female stress urinary incontinence (SUI). This study aimed to evaluate the complication rates and procedural times associated with performing this procedure during a period of transition from the retropubic tension-free vaginal tape (TVT) procedure to the transobturator TVT-O procedure. METHODS: We performed a retrospective analysis of the first 50 patients to undergo the TVT-O procedure in one gynaecologist's practice. All patients had SUI or mixed urinary incontinence. Operative times and intraoperative and perioperative complications were recorded. At the two-week and six- to eight-week postoperative reviews, a urogenital history and examination were performed. RESULTS: The only complications encountered were two cases (4%) of urinary tract infection and one case (2%) of superficial wound infection. There were no cases of postoperative voiding difficulty, hemorrhage, hematoma, persistent groin pain, or vascular or visceral injuries. The mean procedural time was 21 minutes. CONCLUSION: These preliminary results indicate that the TVT-O procedure is a safe treatment for female SUI even during the training phase. In light of the safety and the ease of transition to this technique, this finding is encouraging for surgeons who are making the transition from other surgical procedures for female SUI to the transobturator TVT-O.


Asunto(s)
Cabestrillo Suburetral/efectos adversos , Incontinencia Urinaria de Esfuerzo/cirugía , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Estudios Retrospectivos
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