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Nephrotoxicity, including electrolytic disorders and acute kidney injury (AKI), limits the clinical dosage and utility of platinated antineoplastics such as cisplatin. Cisplatin nephrotoxicity embodies a tubulopathy involving the medullary S2 and S3 segments of the proximal and the distal tubules. Higher dosage extends damage over the cortical S1 segment and intensifies overall injury. However, the standard diagnosis based on plasma creatinine as well as novel injury biomarkers lacks enough pathophysiological specificity. Further granularity in the detection of renal injury would help understand the implications of individual damage patterns needed for personalized patient handling. In this article, we studied the association of urinary ganglioside GM2 activator protein (GM2AP) with the patterns of tubular damage produced by 5 and 10â¯mg/kg cisplatin in rats. Our results show that GM2AP appears in the urine only following damage to the cortical segment of the proximal tubule. The information provided by GM2AP is not redundant with but distinct and complementary to that provided by urinary neutrophil gelatinase-associated lipocalin (NGAL). Similarly, treatment with 150â¯mg/kg/day gentamicin damages the renal cortex and increases GM2AP urinary excretion; whereas renal ischemia, which does not affect the cortex, has no effect on GM2AP. Because of the key role of the cortical proximal tubule in renal function, we contend GM2AP as a potential diagnostic biomarker to stratify AKI patients according to the underlying damage and follow their evolution and prognosis. Prospectively, urinary GM2AP may help grade the severity of platinated antineoplastic nephrotoxicity by forming part of a non-invasive liquid biopsy.
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BACKGROUND: It has long been observed that there are families in which non-medullary thyroid cancer (NMTC) occurs, but few syndromes and genes have been described to date. Proteins in the shelterin complex have been implied in cancer. Here, we have studied shelterin genes in families affected by NMTC (FNMTC). METHODS: We performed whole-exome sequencing (WES) in 10 affected individuals from four families with at least three affected members. Polymerase chain reaction (PCR) and Sanger sequencing were performed to search for variants in the TINF2 gene in 40 FNMTC families. TINF2 transcripts and loss of heterozygosity (LOH) were studied in several affected patients of one family. RESULTS: We found the c.507G>T variant in heterozygosis in the TINF2 gene in one family, co-segregating in all five affected members. This variant affects the normal splicing. LOH was not observed. CONCLUSIONS: Our results reinforce the TINF2 gene as a susceptibility cause of FNMTC suggesting the importance of location of frameshift variants in TINF2. According to our data and previous literature, TINF2 pathogenic variants appear to be a significant risk factor for the development of NMTC and/or melanoma.
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This systematic review explores factors influencing resilience and post-traumatic growth in parents who have lost a child under 25 to cancer. While such parents are vulnerable to complicated grief, not all experience it. Eight qualitative and mixed studies from ProQuest, Science Direct, PubMed, and Cochrane databases were included. They highlight the importance of support and communication with palliative care teams and other grieving families. Understanding the ambivalence experienced during the process is crucial. The review underscores the limited research in this area and offers direction for future studies. Psychological interventions could aid these parents in adapting to their new reality.
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Background: Despite efforts to prevent dating violence among adolescents, it remains a major problem with multiple negative consequences. Sexist beliefs, empathy, and assertiveness influence teen dating violence (TDV) with potential gender differences. Objectives: (1) Determine gender disparities in TDV perpetration and victimization, including relational, verbal-emotional, and physical aspects, as well as roles; (2) Analyze gender variations in sexism, empathy, assertiveness, and their relationship with TDV; (3) Establish a predictive model of sexism in TDV with empathy and assertiveness as mediators for both genders. Participants and setting: A sample of 862 secondary school students (50.2% females, 49.8% males; mean age: 14.1 years) from diverse regions in Spain participated. Methods: TDV was measured using the Conflict in Adolescent Dating Relationships Inventory (CADRI) in a cross-sectional study. Sexism, empathy, and assertiveness were assessed using the Ambivalent Sexism Inventory (ASI), Interpersonal Reactivity Index (IRI), and Assertiveness Inventory for Students Questionnaire (AISQ), respectively. Results: Females exhibited higher TDV perpetration, specifically verbal-emotional TDV. Males showed more relational TDV and hostile sexism, while no benevolent sexism differences were observed. Mediation models demonstrated sexism, assertiveness, and empathy as individual predictors of TDV, with varying mediation effects. Personal distress partially mediates the link between sexism and TDV perpetration or victimization in males, while practical personal ability mediates between sexism and TDV perpetration in females. Conclusion: Sexism predicts both perpetration and victimization in TDV, linked to empathy and assertiveness. Notably, specific dimensions of empathy and assertiveness mediate the connection between sexism and TDV, displaying gender-specific patterns. Preventive measures should consider personal distress in male perpetrators/victims and practical personal ability in female perpetrators.
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Introduction: The phenomenon of aging is distinguished by profound life transformations, with the most dependent group being constituted by elderly individuals. The responsibility for their care primarily falls on the figure of the informal caregiver. The scarcity of time, the stress associated with caregiving, the financial, work-related, and personal difficulties it entails, make it a collective with high probabilities of experiencing various psychological disorders. Interventions that have shown the best results are those of multiple components, composed of various techniques that seek to adapt to the reality of the informal caregiver. Method: The purpose of this study is a systematic review of effective interventions on depressive symptoms, emotional wellbeing, burden, or quality of life in informal caregivers of non-institutionalized dependents from 2018 to the present. A search was conducted in November 2023, on Pubmed, Pubmed Central, Proquest, and Scielo. The final review was conducted on 11 articles. Results: The results indicate that multiple component interventions including cognitive behavioral techniques and psychoeducation in combination with stress coping techniques and social support are more effective on depressive symptoms, burden, quality of life, and increasing the social support network. Discussion: Results on web-based programs demonstrate their efficacy and effectiveness, but require a greater number of trials to adjust their methodological quality and content to the idiosyncrasies of the informal caregiver.
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Necrotizing fasciitis (NF) is a potentially life-threatening surgical emergency. It is a rapidly progressive infection of soft tissues, and mortality is related to the degree of sepsis and the general condition of the patient. It is a rare condition that requires a rapid diagnosis and surgical treatment is aggressive debridement. There are a small number of reported cases of perforation of a rectal malignancy leading to NF of the thigh. We present a case with rectal cancer in which the sciatic foramen had provided a channel for the spread of pelvic infection into the thigh.
La fascitis necrotizante es una emergencia quirúrgica potencialmente mortal. Es una infección de tejidos blandos rápidamente progresiva y la mortalidad está relacionada con el grado de sepsis y el estado general del paciente. Es una condición poco común que requiere un diagnóstico rápido, y el tratamiento quirúrgico consiste en un desbridamiento agresivo. Existe un pequeño número de casos notificados de perforación de neoplasia maligna de recto que conduce a fascitis necrotizante del muslo. Presentamos un caso de cáncer de recto en el cual el foramen ciático fue el canal para la propagación de la infección pélvica al muslo.
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Fascitis Necrotizante , Perforación Intestinal , Neoplasias del Recto , Muslo , Humanos , Fascitis Necrotizante/etiología , Fascitis Necrotizante/cirugía , Neoplasias del Recto/cirugía , Neoplasias del Recto/complicaciones , Perforación Intestinal/etiología , Perforación Intestinal/cirugía , Masculino , Desbridamiento , Adenocarcinoma/complicaciones , Adenocarcinoma/cirugía , Persona de Mediana Edad , Nervio Ciático/lesiones , Infección Pélvica/etiologíaRESUMEN
BACKGROUND: Data on the likelihood of left ventricle (LV) recovery in patients with severe LV dysfunction and severe aortic stenosis undergoing transcatheter aortic valve implantation (TAVI) and its prognostic value are limited. AIMS: We aimed to assess the likelihood of LV recovery following TAVI, examine its association with midterm mortality, and identify independent predictors of LV function. METHODS: In our multicentre registry of 17 TAVI centres in Western Europe and Israel, patients were stratified by baseline LV function (ejection fraction [EF] >/≤30%) and LV response: no LV recovery, LV recovery (EF increase ≥10%), and LV normalisation (EF ≥50% post-TAVI). RESULTS: Our analysis included 10,872 patients; baseline EF was ≤30% in 914 (8.4%) patients and >30% in 9,958 (91.6%) patients. The LV recovered in 544 (59.5%) patients, including 244 (26.7%) patients whose LV function normalised completely (EF >50%). Three-year mortality for patients without severe LV dysfunction at baseline was 29.4%. Compared to this, no LV recovery was associated with a significant increase in mortality (adjusted hazard ratio 1.32; p<0.001). Patients with similar LV function post-TAVI had similar rates of 3-year mortality, regardless of their baseline LV function. Three variables were associated with a higher likelihood of LV recovery following TAVI: no previous myocardial infarction (MI), estimated glomerular filtration rate >60 mL/min, and mean aortic valve gradient (mAVG) (expressed either as a continuous variable or as a binary variable using the standard low-flow, low-gradient aortic stenosis [AS] definition). CONCLUSIONS: LV recovery following TAVI and the extent of this recovery are major determinants of midterm mortality in patients with severe AS and severe LV dysfunction undergoing TAVI. Patients with no previous MI and those with an mAVG >40 mmHg show the best results following TAVI, which are at least equivalent to those for patients without severe LV dysfunction. (ClinicalTrials.gov: NCT04031274).
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Estenosis de la Válvula Aórtica , Reemplazo de la Válvula Aórtica Transcatéter , Disfunción Ventricular Izquierda , Humanos , Válvula Aórtica/cirugía , Ventrículos Cardíacos , Volumen Sistólico , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Resultado del Tratamiento , Función Ventricular Izquierda , Estudios Multicéntricos como Asunto , Estudios Clínicos como AsuntoRESUMEN
BACKGROUND: Clinical trials investigating drugs for the acute treatment of hereditary angioedema attacks have assessed many different outcomes. This heterogeneity limits the comparability of trial results and may lead to selective outcome reporting bias and a high burden on trial participants. OBJECTIVE: To achieve consensus on a core outcome set composed of key outcomes that ideally should be used in all clinical efficacy trials involving the acute treatment of hereditary angioedema attacks. METHODS: We conducted a Delphi consensus study involving all relevant parties: patients with hereditary angioedema, hereditary angioedema expert clinicians and clinical researchers, pharmaceutical companies, and regulatory bodies. Two Internet-based survey rounds were conducted. In round 1, panelists indicated the importance of individual outcomes used in clinical trials on a 9-point Likert scale. Based on these results, a core outcome set was developed and voted on by panelists in round 2. RESULTS: A total of 58 worldwide panelists completed both rounds. The first round demonstrated high importance scores and substantial agreement among the panelists. In the second round, a consensus of 90% or greater was achieved on a core outcome set consisting of five key outcomes: change in overall symptom severity at one predetermined time point between 15 minutes and 4 hours after treatment, time to end of progression of all symptoms, the need for rescue medication during the entire attack, impairment of daily activities, and treatment satisfaction. CONCLUSIONS: This international study obtained a high level of consensus on a core outcome set for the acute treatment of hereditary angioedema attacks, consisting of five key outcomes.
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Angioedemas Hereditarios , Humanos , Angioedemas Hereditarios/tratamiento farmacológico , Resultado del Tratamiento , Técnica Delphi , Encuestas y Cuestionarios , Ensayos Clínicos como Asunto , Consenso , Femenino , Evaluación de Resultado en la Atención de SaludRESUMEN
Cleidocranial dysplasia (CCD) is an autosomal dominant skeletal dysplasia characterized by persistent open skull sutures with bulging calvaria, hypoplasia, or aplasia of clavicles permitting abnormal opposition of the shoulders; wide public symphysis; short middle phalanx of the fifth fingers; and vertebral, craniofacial, and dental anomalies. It is a rare disease, with a prevalence of 1-9/1,000,000, high penetrance, and variable expression. The gene responsible for CCD is the Runt-related transcription factor 2 (RUNX2) gene. We characterize the clinical, genetic, and bioinformatic results of four CCD cases: two cases within Mexican families with six affected members, nine asymptomatic individuals, and two sporadic cases with CCD, with one hundred healthy controls. Genomic DNA analyses of the RUNX2 gene were performed for Sanger sequencing. Bioinformatics tools were used to predict the function, stability, and structural changes of the mutated RUNX2 proteins. Three novel heterozygous mutations (c.651_652delTA; c.538_539delinsCA; c.662T>A) and a previously reported mutation (c.674G>A) were detected. In silico analysis showed that all mutations had functional, stability-related, and structural alterations in the RUNX2 protein. Our results show novel mutations that enrich the pool of RUNX2 gene mutations with CCD. Moreover, the proband 1 presented clinical data not previously reported that could represent an expanded phenotype of severe expression.
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Over the last 20 years, the incidence of vertical HIV transmission has decreased from 25%-42% to less than 1%. Although there are no signs of infection, the health of HIV-exposed uninfected (HEU) infants is notoriously affected during the first months of life, with opportunistic infections being the most common disease. Some studies have reported effects on the vertical transfer of antibodies, but little is known about the subclass distribution of these antibodies. We proposed to evaluate the total IgG concentration and its subclasses in HIV+ mothers and HEU pairs and to determine which maternal factors condition their levels. In this study, plasma from 69 HEU newborns, their mothers, and 71 control pairs was quantified via immunoassays for each IgG isotype. Furthermore, we followed the antibody profile of HEUs throughout the first year of life. We showed that mothers present an antibody profile characterized by high concentrations of IgG1 and IgG3 but reduced IgG2, and HEU infants are born with an IgG subclass profile similar to that of their maternal pair. Interestingly, this passively transferred profile could remain influenced even during their own antibody production in HEU infants, depending on maternal conditions such as CD4+ T-cell counts and maternal antiretroviral treatment. Our findings indicate that HEU infants exhibit an altered IgG subclass profile influenced by maternal factors, potentially contributing to their increased susceptibility to infections.
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Infecciones por VIH , Lactante , Humanos , Recién Nacido , Inmunoglobulina G , Incidencia , Recuento de Linfocito CD4 , Transmisión Vertical de Enfermedad InfecciosaRESUMEN
In this article, we present a new method called point spread function (PSF)-Radon transform algorithm. This algorithm consists on recovering the instrument PSF from the Radon transform (in the line direction axis) of the line spread function (i.e., the image of a line). We present the method and tested with synthetic images, and real images from macro lens camera and microscopy. A stand-alone program along with a tutorial is available, for any interested user, in Martinez (PSF-Radon transform algorithm, standalone program). RESEARCH HIGHLIGHTS: Determining the instrument PSF is a key issue. Precise PSF determinations are mandatory if image improvement is performed numerically by deconvolution. Much less exposure time to achieve the same performance than a measurement of the PSF from a very small bead. Does not require having to adjust the PSF by an analytical function to overcome the noise uncertainties.
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Background: Fine particulate matter (PM2.5) exposure has been linked to anxiety and depression in adults; however, there is limited research in the younger populations, in which symptoms often first arise. Methods: We examined the association between early-life PM2.5 exposure and symptoms of anxiety and depression in a cohort of 8-11-year-olds in Mexico City. Anxiety and depressive symptoms were assessed using the Spanish versions of the Revised Children's Manifest Anxiety Scale and Children's Depression Inventory. Daily PM2.5 was estimated using a satellite-based exposure model and averaged over several early and recent exposure windows. Linear and logistic regression models were used to estimate the change in symptoms with each 5-µg/m3 increase in PM2.5. Models were adjusted for child's age, child's sex, maternal age, maternal socioeconomic status, season of conception, and temperature. Results: Average anxiety and depressive symptom T-scores were 51.0 (range 33-73) and 53.4 (range 44-90), respectively. We observed consistent findings for exposures around the fourth year of life, as this was present for both continuous and dichotomized anxiety symptoms, in both independent exposure models and distributed lag modeling approaches. This window was also observed for elevated depressive symptoms. An additional consistent finding was for PM2.5 exposure during early pregnancy in relation to both clinically elevated anxiety and depressive symptoms, this was seen in both traditional and distributed lag modeling approaches. Conclusion: Both early life and recent PM2.5 exposure were associated with higher mental health symptoms in the child highlighting the role of PM2.5 in the etiology of these conditions.
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Somatic embryogenesis in Agave genus has been induced; however, it is desirable to increase the rate of growth to get a more efficient propagation system. In this chapter, we present in detailed a protocol for somatic embryogenesis in Agave cupreata and the use of silver nanoparticles in a temporary immersion system. This is an efficient method that can be used commercially to improve the production and germination of somatic embryos.
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Agave , Nanopartículas del Metal , Plata , InmersiónRESUMEN
INTRODUCTION: The increased risk of severe and life-threatening toxicity in patients with dihydropyridine dehydrogenase (DPD) deficiency, under treatment with fluoropyrimidines, has been widely studied. An up-to-date overview of systematic reviews summarizing existing literature can add value by highlighting most relevant information and supports decision-making regarding treatment in DPD deficient patients. The main objective of this overview of systematic reviews is to identify published systematic reviews on the association between germline variations in the DPYD gene and fluoropyrimidine toxicity. METHODS AND ANALYSIS: This protocol was developed following the Preferred Reported Items for Systematic Review and Meta-analysis Protocols (PRISMA-P) checklist, and the overview of systematic reviews will be reported in accordance with the PRISMA statement. PubMed, Embase, Scopus, and the Cochrane Library will be searched from inception to 2023. Systematic reviews irrespective of study designs that analyze the association between germline variations in the DPYD and fluoropyrimidine toxicity will be considered. Methodological quality will be assessed using AMSTAR2 checklist (Measurement Tool to Assess Systematic Reviews 2). Two independent investigators will perform the study selection, quality assessment, and data collection. Discrepancies will be solved by a third investigator. REGISTRATION DETAILS: Registration number in PROSPERO: CRD42023401226.
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Antimetabolitos Antineoplásicos , Fluorouracilo , Pirimidinas , Humanos , Capecitabina/efectos adversos , Fluorouracilo/efectos adversos , Antimetabolitos Antineoplásicos/efectos adversos , Genotipo , Dihidrouracilo Deshidrogenasa (NADP)/genética , Revisiones Sistemáticas como Asunto , Metaanálisis como AsuntoRESUMEN
INTRODUCTION: The increased risk of severe and life-threatening toxicity in patients with dihydropyridine dehydrogenase deficiency, under treatment with fluoropyrimidines, has been widely studied. An up-to-date overview of systematic reviews summarizing existing literature can add value by highlighting most relevant information and supports decision-making regarding treatment in dihydropyridine dehydrogenase deficient patients. The main objective of this overview is to identify published systematic reviews on the association between germline variations in the DPYD gene and fluoropyrimidine toxicity. METHODS AND ANALYSIS: This protocol was developed following the Preferred Reported Items for Systematic Review and Meta-analysis Protocols (PRISMA-P) checklist, and the overview of systematic reviews will be reported in accordance with the PRISMA statement. PubMed, Embase, Scopus and the Cochrane Library will be searched from inception to 2023. Systematic reviews irrespective of study designs that analyze the association between germline variations in the DPYD and fluoropyrimidine toxicity will be considered. Methodological quality will be assessed using AMSTAR2 checklist (Measurement Tool to Assess Systematic Reviews 2). Two independent investigators will perform the study selection, quality assessment and data collection. Discrepancies will be solved by a third investigator.
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Dihidropiridinas , Fluorouracilo , Pirimidinas , Humanos , Fluorouracilo/efectos adversos , Genotipo , Dihidrouracilo Deshidrogenasa (NADP)/genética , Revisiones Sistemáticas como Asunto , Metaanálisis como AsuntoRESUMEN
Background and Objectives: Available studies confirm myocardial injury and its association with mortality in patients with COVID-19, but few data have been reported from echocardiographic studies. The aim of this study was to identify subclinical left ventricular dysfunction by global longitudinal strain (GLS) and its evolution in the short term in hospitalized patients with COVID-19. Materials and Methods: Thirty-one consecutive noncritical patients admitted for COVID-19 were included. Information on demographics, laboratory results, comorbidities, and medications was collected. Transthoracic echocardiograms were performed using a Philips Affinity 50, at the acute stage and at a 30-day follow-up. Automated left ventricular GLS was measured using a Philips Qlab 13.0. A GLS of <-15.9% was defined as abnormal. Results: The mean age was 65 ± 15.2 years, and 61.3% of patients were male. Nine patients (29%) had elevated levels of high-sensitivity troponin I. Left ventricular ejection fraction was preserved in all; however, 11 of them (35.5%) showed reduced GLS. These patients had higher troponin levels (median, 23.7 vs. 3.2 ng/L; p < 0.05) and NT-proBNP (median, 753 vs. 81 pg/mL; p < 0.05). The multivariate analysis revealed that myocardial injury, defined as increased troponin, was significantly associated with GLS values (coefficient B; p < 0.05). Follow-up at 30 days showed an improvement in GLS values in patients with subclinical left ventricular dysfunction (-16.4 ± 2.07% vs. -13.2 ± 2.40%; p < 0.01), without changes in the normal GLS group. Conclusions: Subclinical left ventricular dysfunction is common in noncritical hospitalized patients with COVID-19 (one in every three patients), even with preserved left ventricular ejection fraction. This impairment tends to be reversible on clinical recovery.
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COVID-19 , Disfunción Ventricular Izquierda , Humanos , Masculino , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Femenino , Función Ventricular Izquierda , Volumen Sistólico , Estudios de Seguimiento , COVID-19/complicaciones , Disfunción Ventricular Izquierda/diagnóstico por imagen , Ecocardiografía/métodos , TroponinaRESUMEN
[This corrects the article DOI: 10.1016/j.isci.2023.107480.].
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INTRODUCTION: Geriatric and gerontology healthcare workers are associated with a series of psychosocial risks such as death, bereavement and illness, and this implies a significant emotional and work overload, which can lead to negative attitudes toward death. OBJECTIVE: The aims of this study were to assess attitudes toward death, the level of burnout and the relationship between geriatrics and gerontology professionals. METHOD: A correlational, cross-sectional study was conducted, in which the 42 participants in the sample completed an online questionnaire including the Revised Profile of Attitudes to Death (PAM-R) and the Maslach Burnout Inventory-Human Services Survey (MBI-HSS). RESULTS: The results obtained show that the predominant attitude toward death in the sample is that of neutral acceptance, and with regard to burnout syndrome, moderate average levels are found in the dimensions of emotional exhaustion and personal accomplishment, but a low level of depersonalisation. CONCLUSION: Healthcare workers with attitudes of greater fear of death or acceptance of escape tend to experience higher levels of emotional exhaustion and depersonalisation, as do those with an attitude of death avoidance, who also have lower personal fulfillment.
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Agotamiento Profesional , Geriatría , Humanos , Anciano , Estudios Transversales , Agotamiento Psicológico , Personal de Salud/psicología , Agotamiento Profesional/psicología , Encuestas y Cuestionarios , Atención a la SaludRESUMEN
Background: Cervical cytology remains widely used as the initial tool in cervical cancer screening worldwide. WHO guidelines recommend replacing cytology with primary HPV testing to reach cervical cancer elimination goals. We assessed the performance of cytology and high-risk HPV testing to detect cervical precancer, cervical intraepithelial neoplasia (CIN) grade 3 or worse (CIN3+) among women aged 30-64 years participating in the ESTAMPA study. Methods: Women were screened with cytology and HPV across ESTAMPA study centres in Latin America. Screen-positives were referred to colposcopy with biopsy collection and treatment as needed. Those with no evident precancer were recalled at 18-months for a second HPV test to complete disease ascertainment. Performance indicators for cytology and HPV to detect CIN3+ were estimated. Findings: 30,606 participants with available cytology and HPV results were included in the analysis. A total of 440 histologically confirmed CIN3s and 30 cancers were diagnosed. Cytology sensitivity for CIN3+ was 48.5% (95% CI: 44.0-53.0), whereas HPV testing had a sensitivity of 98.1% (95% CI: 96.3-96.7). Specificity was 96.5% (95% CI: 96.3-96.7) using cytology and 88.7% (95% CI: 88.3-89.0) with HPV. Performance estimates varied substantially by study centre for cytology (ranging from 32.1% to 87.5% for sensitivity and from 89.2% to 99.5% for specificity) while for HPV results were more consistent across sites (96.7%-100% and 83.6-90.8%, respectively). Interpretation: The limited and highly variable sensitivity of cytology strongly supports transition to the more robust and reproducible HPV-based cervical screening to ensure progress towards global cervical cancer elimination targets in Latin America. Funding: IARC/WHO, UNDP, HRP/WHO, NCI and local funders.