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Cancer Cytopathology Nov 2020Cervico-vaginal cytology is primarily a cervical cancer screening test. The anatomical continuity of the uterine cavity with the cervix makes the Papanicolaou (Pap) test... (Meta-Analysis)
Meta-Analysis
Cervico-vaginal cytology is primarily a cervical cancer screening test. The anatomical continuity of the uterine cavity with the cervix makes the Papanicolaou (Pap) test accessible to evaluate signs of disease shed from the endometrium. Our aim was to determine the sensitivity of routine Pap test in endometrial carcinoma detection and its relationship with clinico-pathologic factors. We performed a systematic review of studies reporting Pap test results prior to diagnosis of or surgery for endometrial carcinoma between 1990 and 2018 in PubMed or Web of Science. Two independent reviewers extracted data and assessed study quality using an adapted Newcastle-Ottawa Quality Assessment Scale and Quality Assessment of Diagnostic Accuracy Studies tool. We identified 45 studies including a total of 6599 women with endometrial cancer. Abnormal Pap test results prior to diagnosis of or surgery for endometrial carcinoma were observed in 45% (95% CI, 40%-50%) of study participants. This percentage was significantly higher among those of non-endometrioid histology compared with endometrioid subtypes (77% [95% CI, 66%-87%] vs 44% [95% CI, 34%-53%], respectively; P heterogeneity <.001). Several clinico-pathologic factors were related to a higher percentage of abnormal Pap test results, including high-stage, myometrial invasion >50%, high histological grade, positive peritoneal cytology, presence of lymph node metastasis, cervical involvement, and lymphovascular invasion (P heterogeneity <.05 for all variables). Routine cervical cytology can detect endometrial cancer in almost half of patients, whereas sensitivity is higher among individuals with non-endometrioid histology or more advanced cancers. This review summarizes the current clinical and prognostic value of cervical cytology in endometrial carcinoma. Recent technological developments using molecular biomarkers may improve accuracy for early cancer detection.
Topics: Cervix Uteri; Cytodiagnosis; Endometrial Neoplasms; Female; Humans; ROC Curve; Vagina
PubMed: 32202704
DOI: 10.1002/cncy.22266 -
International Journal of Gynaecology... May 2020Human papillomavirus (HPV) testing may be feasible for primary cervical cancer screening in low-resource countries.
BACKGROUND
Human papillomavirus (HPV) testing may be feasible for primary cervical cancer screening in low-resource countries.
OBJECTIVE
To compare self-sampling by women with clinician-performed sampling for HPV testing in Africa.
SEARCH STRATEGY
MEDLINE, Google scholar, EMBASE, and several journals were searched from 2000 until 2015 using relevant terms.
SELECTION CRITERIA
Selected studies compared self-sampled and clinician-sampled HPV tests.
DATA COLLECTION AND ANALYSIS
Data extraction forms included description of the type of HPV screening, description of any additional intervention components, study design, sample size, follow-up periods, analytic approach, reported numerical outcomes, results, and limitations.
RESULTS
Twenty-five studies were identified. Women of a wide age range were successful at self-sampling in many African countries. More than 95% of self-samples yielded HPV DNA results. The concordance in test results between self-collected samples and clinician-collected samples was reasonably high in most studies. In all studies, the quality of cytology from self-sampling matched that of clinician-sampling. Women were generally positive about self-collection, but noted some concerns.
CONCLUSION
Self-sampling for HPV DNA testing seems to represent a feasible alternative to the Pap test. Further research is needed to provide a solid evidence base to inform using of self-sampling for HPV DNA testing for primary cervical cancer screening.
Topics: Adult; Africa; Early Detection of Cancer; Female; Humans; Mass Screening; Papillomaviridae; Papillomavirus Infections; Randomized Controlled Trials as Topic; Self Care; Specimen Handling; Uterine Cervical Neoplasms
PubMed: 32037532
DOI: 10.1002/ijgo.13112 -
Journal of Immigrant and Minority Health Oct 2020As refugee populations continue to age in the United States, there is a need to prioritize screening for chronic illnesses, including cancer, and to characterize how... (Review)
Review
As refugee populations continue to age in the United States, there is a need to prioritize screening for chronic illnesses, including cancer, and to characterize how social and cultural contexts influence beliefs about cancer and screening behaviors. This study examines screening rates and socio-cultural factors influencing screening among resettled refugee women from Muslim-majority countries of origin. A systematic and integrative review approach was used to examine articles published from 1980 to 2019, using PubMed, CINAHL, and PsycINFO. A total of 20 articles met the inclusion criteria. Cancer screening rates among refugee women are lower when compared to US-born counterparts. Social and cultural factors include religious beliefs about cancer, stigma, modesty and gender roles within the family context. The findings of this review, suggest that resettled refugee women underutilize preventive services, specifically mammography, Pap test and colonoscopy screening, and whose perceptions and behaviors about cancer and screening are influenced by social and cultural factors.
Topics: Early Detection of Cancer; Female; Humans; Islam; Mass Screening; Neoplasms; Papanicolaou Test; Refugees; United States
PubMed: 31900753
DOI: 10.1007/s10903-019-00967-6 -
Journal of Immigrant and Minority Health Aug 2020Indigenous women have higher rates of cervical cancer and cervical cancer mortality compared to non-Indigenous women, as well as unique challenges to accessing screening...
Indigenous women have higher rates of cervical cancer and cervical cancer mortality compared to non-Indigenous women, as well as unique challenges to accessing screening services. Human papillomavirus (HPV) self-sampling has been demonstrated as an effective measure to reach under-screened women. A scoping review identified 19 sources matching selection criteria through a systematic search of PubMed and Scopus completed in May 2018. Analysis revealed that this is a limited field of research; albeit one that has undergone growth in the last 7 years. HPV self-sampling is identified as easy, convenient, comfortable and private and is often preferred over Papanicolaou (Pap) testing. Despite largely positive experiences, several studies indicated that some women lacked confidence in their ability to adequately self-sample. HPV self-sampling may be an effective intervention where Pap testing adherence is low but should include supporting resources and community input so as to best tailor implementations to each community.
Topics: Alphapapillomavirus; Gender Role; Humans; Indigenous Peoples; Mass Screening; Papanicolaou Test; Privacy; Self Care; Self Efficacy; Sexuality; Specimen Handling
PubMed: 31828485
DOI: 10.1007/s10903-019-00954-x -
Diabetologia Jan 2020Individuals with diabetes are at increased risk of developing and dying from cancer. Evidence-based guidelines recommend universal screening for breast, cervical and... (Meta-Analysis)
Meta-Analysis Review
AIMS/HYPOTHESIS
Individuals with diabetes are at increased risk of developing and dying from cancer. Evidence-based guidelines recommend universal screening for breast, cervical and colorectal cancer; however, evidence on the uptake of these tests in individuals with diabetes is mixed. We conducted a meta-analysis to quantify the association between diabetes and participation in breast, cervical and colorectal cancer screening.
METHODS
MEDLINE, EMBASE and CINAHL were searched systematically for publications between 1 January 1997 and 18 July 2018. The search was supplemented by handsearching of reference lists of the included studies and known literature reviews. Abstracts and full texts were assessed in duplicate according to the following eligibility criteria: study conducted in the general population; diabetes included as a predictor vs a comparison group without diabetes; and breast (mammography), cervical (Papanicolaou smear) or colorectal (faecal and endoscopic tests) cancer screening uptake included as an outcome. Random-effects meta-analyses were performed using the most-adjusted estimates for each cancer site.
RESULTS
Thirty-seven studies (25 cross-sectional, 12 cohorts) were included, with 27 studies on breast, 19 on cervical and 18 on colorectal cancer screening. Having diabetes was associated with significantly lower likelihood of breast (adjusted OR 0.83 [95% CI 0.77, 0.90]) and cervical (OR 0.76 [95% CI 0.71, 0.81]) cancer screening, relative to not having diabetes. Colorectal cancer screening was comparable across groups with and without diabetes (OR 0.95 [95% CI 0.86, 1.06]); however, women with diabetes were less likely to receive a colorectal cancer screening test than women without diabetes (OR 0.86 [95% CI 0.77, 0.97]).
CONCLUSIONS/INTERPRETATION
Our findings suggest that women with diabetes have suboptimal breast, cervical and colorectal cancer screening rates, compared with women without diabetes, although the absolute differences might be modest. Given the increased risk of cancer in this population, higher quality prospective evidence is necessary to evaluate the contribution of diabetes to cancer screening disparities in relation to other patient-, provider- and system-level factors.
REGISTRATION
PROSPERO registration ID CRD42017073107.
Topics: Female; Humans; Breast Neoplasms; Colonic Neoplasms; Colorectal Neoplasms; Cross-Sectional Studies; Early Detection of Cancer; Adult
PubMed: 31650239
DOI: 10.1007/s00125-019-04995-7 -
International Journal of STD & AIDS Nov 2019
Meta-Analysis
Topics: Adult; Aged; Cervix Uteri; Condylomata Acuminata; Female; Humans; Middle Aged; Papanicolaou Test; Papillomaviridae; Papillomavirus Infections; Papillomavirus Vaccines; Uterine Cervical Diseases; Uterine Cervical Neoplasms; Vaginal Smears
PubMed: 31640474
DOI: 10.1177/0956462418824441 -
BMJ Global Health 2019Human papillomavirus (HPV) self-sampling test kits may increase screening for and early detection of cervical cancer and reduce its burden globally. To inform WHO...
INTRODUCTION
Human papillomavirus (HPV) self-sampling test kits may increase screening for and early detection of cervical cancer and reduce its burden globally. To inform WHO self-care guidelines, we conducted a systematic review and meta-analysis of HPV self-sampling among adult women on cervical (pre-)cancer screening uptake, screening frequency, social harms/adverse events and linkage to clinical assessment/treatment.
METHODS
The included studies compared women using cervical cancer screening services with HPV self-sampling with women using standard of care, measured at least one outcome, and were published in a peer-reviewed journal. We searched PubMed, the Cumulative Index to Nursing and Allied Health Literature (CNIAHL), Latin American and Caribbean Health Sciences Literature (LILACS) and Embase through October 2018. Risk of bias was assessed using the Cochrane tool for randomised controlled trials (RCTs) and the Evidence Project tool for non-randomised studies. Meta-analysis was conducted using random-effects models to generate pooled estimates of relative risk (RR).
RESULTS
33 studies in 34 articles with 369 017 total participants met the inclusion criteria: 29 RCTs and 4 observational studies. All studies examined HPV self-sampling; comparison groups were standard of care (eg, Pap smear, visual inspection with acetic acid, clinician-collected HPV testing). 93% of participants were from high-income countries. All 33 studies measured cervical cancer screening uptake. Meta-analysis found greater screening uptake among HPV self-sampling participants compared with control (RR: 2.13, 95% CI 1.89 to 2.40). Effect size varied by HPV test kit dissemination method, whether mailed directly to home (RR: 2.27, 95% CI 1.89 to 2.71), offered door-to-door (RR: 2.37, 95% CI 1.12 to 5.03) or requested on demand (RR: 1.28, 95% CI 0.90 to 1.82). Meta-analysis showed no statistically significant difference in linkage to clinical assessment/treatment between arms (RR: 1.12, 95% CI 0.80 to 1.57). No studies measured screening frequency or social harms/adverse events.
CONCLUSION
A growing evidence base, mainly from high-income countries and with significant heterogeneity, suggests HPV self-sampling can increase cervical cancer screening uptake compared with standard of care, with a marginal effect on linkage to clinical assessment/treatment.
SYSTEMATIC REVIEW REGISTRATION NUMBER
PROSPERO CRD42018114871.
PubMed: 31179035
DOI: 10.1136/bmjgh-2018-001351 -
Journal of Women's Health (2002) Dec 2019Incarcerated women often access health care primarily through contact with correctional systems. Cervical cancer screening within the correctional system can address...
Incarcerated women often access health care primarily through contact with correctional systems. Cervical cancer screening within the correctional system can address the preventable outcome of cervical dysplasia and cancer in this high-risk population. A search of PubMed, EMBASE, CINAHL, and ClinicalTrials.gov was conducted for articles published between January, 1966 and December, 2018. All studies on a population of jailed or incarcerated females and at least one of the following outcomes: cervical cancer or dysplasia, pap smear screening, knowledge about screening, treatment of cervical dysplasia, and compliance with follow-up were analyzed. Forty-two studies met inclusion criteria. All 21 studies with prevalence outcomes described a higher prevalence of cervical dysplasia and cancer in the women involved with corrections, compared to a variety of different sources that served as community control groups. The data on screening outcomes were inconsistent. Follow-up compliance for abnormal results was poor, with a study finding that only 21% of women were rescreened within 6 months of the recommended time period. Knowledge about cervical cancer and screening was evaluated in eight studies and was poor across all studies. Women involved in correctional systems have a higher prevalence of cervical dysplasia and cancer than women in the general population. Acceptance of screening varies, and no published interventions have been shown to improve screening within the prison system. Treatment and compliance with follow-up recommendations are extremely poor and should be a focus of future research.
Topics: Early Detection of Cancer; Female; Humans; Mass Screening; Papanicolaou Test; Prevalence; Prisoners; Prisons; Uterine Cervical Dysplasia; Uterine Cervical Neoplasms; Vaginal Smears
PubMed: 30939063
DOI: 10.1089/jwh.2018.7440 -
Diagnostic Cytopathology Apr 2019Anal intraepithelial neoplasia (AIN) refers to a precancerous lesion of anal squamous cell carcinoma (SCC). Human papillomavirus (HPV) is considered a crucial risk... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Anal intraepithelial neoplasia (AIN) refers to a precancerous lesion of anal squamous cell carcinoma (SCC). Human papillomavirus (HPV) is considered a crucial risk factor for AIN. Individuals with high-risk sexual behaviour, such as receptive anal intercourse and multiple sexual partners, as well as men who have sex with men exhibit a relatively high rate of AIN. The anal cytology is a screening method for AIN in high-risk individuals, and patients with abnormal anal cytology may benefit from high-resolution anoscopy. This study explored the predictive value of the anal cytology for the detection of AIN or worse (AIN+).
METHODS
We searched the databases of PubMed, BioMed Central, Cochrane Library, and Google Scholar for relevant studies. Studies on the diagnostic efficacy of the anal cytology for predicting anal cancer on a per-patient basis were included. We excluded review articles. Either prospective trials or retrospective studies were included. We performed the meta-analysis by using a random-effects model to generate a pooled sensitivity, specificity, and diagnostic odds ratio (DOR). All analyses were performed using the MetaDiSc version 1.4 software (Universidad Complutense, Madrid, Spain).
RESULTS
Twelve studies with 2541 participants were retrieved. The meta-analysis of the studies assessing the predictive value of the anal cytology for detecting AIN+ generated a pooled sensitivity of 0.79 (95% confidence interval [CI], 0.77-0.82) and a pooled specificity of 0.66 (95% CI, 0.64-0.69). The pooled DOR for the anal cytology was 5.31 (95% CI, 3.31-8.49).
CONCLUSIONS
Our results revealed that the anal cytology might be effective in diagnosing AIN+.
Topics: Anus Neoplasms; Carcinoma in Situ; Female; Humans; Male; Papanicolaou Test; Papillomavirus Infections; Predictive Value of Tests
PubMed: 30605263
DOI: 10.1002/dc.24078 -
The Cochrane Database of Systematic... Dec 2018Early accurate detection of all skin cancer types is essential to guide appropriate management, reduce morbidity and improve survival. Basal cell carcinoma (BCC) is... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Early accurate detection of all skin cancer types is essential to guide appropriate management, reduce morbidity and improve survival. Basal cell carcinoma (BCC) is usually localised to the skin but has potential to infiltrate and damage surrounding tissue, while cutaneous squamous cell carcinoma (cSCC) and melanoma have a much higher potential to metastasise and ultimately lead to death. Exfoliative cytology is a non-invasive test that uses the Tzanck smear technique to identify disease by examining the structure of cells obtained from scraped samples. This simple procedure is a less invasive diagnostic test than a skin biopsy, and for BCC it has the potential to provide an immediate diagnosis that avoids an additional clinic visit to receive skin biopsy results. This may benefit patients scheduled for either Mohs micrographic surgery or non-surgical treatments such as radiotherapy. A cytology scrape can never give the same information as a skin biopsy, however, so it is important to better understand in which skin cancer situations it may be helpful.
OBJECTIVES
To determine the diagnostic accuracy of exfoliative cytology for detecting basal cell carcinoma (BCC) in adults, and to compare its accuracy with that of standard diagnostic practice (visual inspection with or without dermoscopy). Secondary objectives were: to determine the diagnostic accuracy of exfoliative cytology for detecting cSCC, invasive melanoma and atypical intraepidermal melanocytic variants, and any other skin cancer; and for each of these secondary conditions to compare the accuracy of exfoliative cytology with visual inspection with or without dermoscopy in direct test comparisons; and to determine the effect of observer experience.
SEARCH METHODS
We undertook a comprehensive search of the following databases from inception up to August 2016: Cochrane Central Register of Controlled Trials; MEDLINE; Embase; CINAHL; CPCI; Zetoc; Science Citation Index; US National Institutes of Health Ongoing Trials Register; NIHR Clinical Research Network Portfolio Database; and the World Health Organization International Clinical Trials Registry Platform. We also studied the reference lists of published systematic review articles.
SELECTION CRITERIA
Studies evaluating exfoliative cytology in adults with lesions suspicious for BCC, cSCC or melanoma, compared with a reference standard of histological confirmation.
DATA COLLECTION AND ANALYSIS
Two review authors independently extracted all data using a standardised data extraction and quality assessment form (based on QUADAS-2). Where possible we estimated summary sensitivities and specificities using the bivariate hierarchical model.
MAIN RESULTS
We synthesised the results of nine studies contributing a total of 1655 lesions to our analysis, including 1120 BCCs (14 datasets), 41 cSCCs (amongst 401 lesions in 2 datasets), and 10 melanomas (amongst 200 lesions in 1 dataset). Three of these datasets (one each for BCC, melanoma and any malignant condition) were derived from one study that also performed a direct comparison with dermoscopy. Studies were of moderate to poor quality, providing inadequate descriptions of participant selection, thresholds used to make cytological and histological diagnoses, and blinding. Reporting of participants' prior referral pathways was particularly poor, as were descriptions of the cytodiagnostic criteria used to make diagnoses. No studies evaluated the use of exfoliative cytology as a primary diagnostic test for detecting BCC or other skin cancers in lesions suspicious for skin cancer. Pooled data from seven studies using standard cytomorphological criteria (but various stain methods) to detect BCC in participants with a high clinical suspicion of BCC estimated the sensitivity and specificity of exfoliative cytology as 97.5% (95% CI 94.5% to 98.9%) and 90.1% (95% CI 81.1% to 95.1%). respectively. When applied to a hypothetical population of 1000 clinically suspected BCC lesions with a median observed BCC prevalence of 86%, exfoliative cytology would miss 21 BCCs and would lead to 14 false positive diagnoses of BCC. No false positive cases were histologically confirmed to be melanoma. Insufficient data are available to make summary statements regarding the accuracy of exfoliative cytology to detect melanoma or cSCC, or its accuracy compared to dermoscopy.
AUTHORS' CONCLUSIONS
The utility of exfoliative cytology for the primary diagnosis of skin cancer is unknown, as all included studies focused on the use of this technique for confirming strongly suspected clinical diagnoses. For the confirmation of BCC in lesions with a high clinical suspicion, there is evidence of high sensitivity and specificity. Since decisions to treat low-risk BCCs are unlikely in practice to require diagnostic confirmation given that clinical suspicion is already high, exfoliative cytology might be most useful for cases of BCC where the treatments being contemplated require a tissue diagnosis (e.g. radiotherapy). The small number of included studies, poor reporting and varying methodological quality prevent us from drawing strong conclusions to guide clinical practice. Despite insufficient data on the use of cytology for cSCC or melanoma, it is unlikely that cytology would be useful in these scenarios since preservation of the architecture of the whole lesion that would be available from a biopsy provides crucial diagnostic information. Given the paucity of good quality data, appropriately designed prospective comparative studies may be required to evaluate both the diagnostic value of exfoliative cytology by comparison to dermoscopy, and its confirmatory value in adequately reported populations with a high probability of BCC scheduled for further treatment requiring a tissue diagnosis.
Topics: Adult; Azure Stains; Carcinoma, Basal Cell; Carcinoma, Squamous Cell; Coloring Agents; Cytodiagnosis; Dermoscopy; Humans; Melanoma; Papanicolaou Test; Sensitivity and Specificity; Skin Neoplasms; Melanoma, Cutaneous Malignant
PubMed: 30521689
DOI: 10.1002/14651858.CD013187