{
"@context": "https://schema.org",
"@graph": [
{
"@type": "MedicalWebPage",
"name": "Longueur vertex-coccyx : Questions médicales les plus fréquentes",
"headline": "Longueur vertex-coccyx : Comprendre les symptômes, diagnostics et traitements",
"description": "Guide complet et accessible sur les Longueur vertex-coccyx : explications, diagnostics, traitements et prévention. Information médicale validée destinée aux patients.",
"datePublished": "2024-01-30",
"dateModified": "2025-04-24",
"inLanguage": "fr",
"medicalAudience": [
{
"@type": "MedicalAudience",
"name": "Grand public",
"audienceType": "Patient",
"healthCondition": {
"@type": "MedicalCondition",
"name": "Longueur vertex-coccyx"
},
"suggestedMinAge": 18,
"suggestedGender": "unisex"
},
{
"@type": "MedicalAudience",
"name": "Médecins",
"audienceType": "Physician",
"geographicArea": {
"@type": "AdministrativeArea",
"name": "France"
}
},
{
"@type": "MedicalAudience",
"name": "Chercheurs",
"audienceType": "Researcher",
"geographicArea": {
"@type": "AdministrativeArea",
"name": "International"
}
}
],
"reviewedBy": {
"@type": "Person",
"name": "Dr Olivier Menir",
"jobTitle": "Expert en Médecine",
"description": "Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale",
"url": "/static/pages/docteur-olivier-menir.html",
"alumniOf": {
"@type": "EducationalOrganization",
"name": "Université Paris Descartes"
}
},
"isPartOf": {
"@type": "MedicalWebPage",
"name": "Anthropométrie",
"url": "https://questionsmedicales.fr/mesh/D000886",
"about": {
"@type": "MedicalCondition",
"name": "Anthropométrie",
"code": {
"@type": "MedicalCode",
"code": "D000886",
"codingSystem": "MeSH"
},
"identifier": {
"@type": "PropertyValue",
"propertyID": "MeSH Tree",
"value": "N06.850.505.200.100"
}
}
},
"about": {
"@type": "MedicalCondition",
"name": "Longueur vertex-coccyx",
"alternateName": "Crown-Rump Length",
"code": {
"@type": "MedicalCode",
"code": "D018568",
"codingSystem": "MeSH"
}
},
"author": [
{
"@type": "Person",
"name": "Moacir Franco de Oliveira",
"url": "https://questionsmedicales.fr/author/Moacir%20Franco%20de%20Oliveira",
"affiliation": {
"@type": "Organization",
"name": "Departamento de Ciências Animais, Universidade Federal do Semi-Árido, UFERSA, 59625-900, Mossoró-RN, Brasil."
}
},
{
"@type": "Person",
"name": "Xin Yang",
"url": "https://questionsmedicales.fr/author/Xin%20Yang",
"affiliation": {
"@type": "Organization",
"name": "Prenatal Diagnostic center, Guangzhou Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China."
}
},
{
"@type": "Person",
"name": "Yingsi Li",
"url": "https://questionsmedicales.fr/author/Yingsi%20Li",
"affiliation": {
"@type": "Organization",
"name": "Prenatal Diagnostic center, Guangzhou Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China."
}
},
{
"@type": "Person",
"name": "Dongzhi Li",
"url": "https://questionsmedicales.fr/author/Dongzhi%20Li",
"affiliation": {
"@type": "Organization",
"name": "Prenatal Diagnostic center, Guangzhou Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China."
}
},
{
"@type": "Person",
"name": "Alexandra Matias",
"url": "https://questionsmedicales.fr/author/Alexandra%20Matias",
"affiliation": {
"@type": "Organization",
"name": "Obstetrics & Gynecology Department, São João Hospital & University Centre, Porto, Portugal."
}
}
],
"citation": [
{
"@type": "ScholarlyArticle",
"name": "Design and Implementation of Smart Community Big Data Dynamic Analysis Model Based on Logistic Regression Model.",
"datePublished": "2022-06-22",
"url": "https://questionsmedicales.fr/article/35785068",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1155/2022/4038084"
}
},
{
"@type": "ScholarlyArticle",
"name": "Prediction of protein aggregation propensity employing SqFt-based logistic regression model.",
"datePublished": "2023-07-27",
"url": "https://questionsmedicales.fr/article/37516225",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1016/j.ijbiomac.2023.126036"
}
},
{
"@type": "ScholarlyArticle",
"name": "Multiple logistic regression model to predict bile leak associated with subtotal cholecystectomy.",
"datePublished": "2023-04-04",
"url": "https://questionsmedicales.fr/article/37016083",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1007/s00464-023-10049-2"
}
},
{
"@type": "ScholarlyArticle",
"name": "A noble extended stochastic logistic model for cell proliferation with density-dependent parameters.",
"datePublished": "2022-05-30",
"url": "https://questionsmedicales.fr/article/35637247",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1038/s41598-022-12719-y"
}
},
{
"@type": "ScholarlyArticle",
"name": "Combining proteomic markers to construct a logistic regression model for polycystic ovary syndrome.",
"datePublished": "2023-10-03",
"url": "https://questionsmedicales.fr/article/37854181",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.3389/fendo.2023.1227252"
}
}
],
"breadcrumb": {
"@type": "BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "questionsmedicales.fr",
"item": "https://questionsmedicales.fr"
},
{
"@type": "ListItem",
"position": 2,
"name": "Environnement et santé publique",
"item": "https://questionsmedicales.fr/mesh/D004778"
},
{
"@type": "ListItem",
"position": 3,
"name": "Santé publique",
"item": "https://questionsmedicales.fr/mesh/D011634"
},
{
"@type": "ListItem",
"position": 4,
"name": "Mesures épidémiologiques",
"item": "https://questionsmedicales.fr/mesh/D015991"
},
{
"@type": "ListItem",
"position": 5,
"name": "Biométrie",
"item": "https://questionsmedicales.fr/mesh/D001699"
},
{
"@type": "ListItem",
"position": 6,
"name": "Anthropométrie",
"item": "https://questionsmedicales.fr/mesh/D000886"
},
{
"@type": "ListItem",
"position": 7,
"name": "Longueur vertex-coccyx",
"item": "https://questionsmedicales.fr/mesh/D018568"
}
]
}
},
{
"@type": "MedicalWebPage",
"name": "Article complet : Longueur vertex-coccyx - Questions et réponses",
"headline": "Questions et réponses médicales fréquentes sur Longueur vertex-coccyx",
"description": "Une compilation de questions et réponses structurées, validées par des experts médicaux.",
"datePublished": "2025-05-16",
"inLanguage": "fr",
"hasPart": [
{
"@type": "MedicalWebPage",
"name": "Diagnostic",
"headline": "Diagnostic sur Longueur vertex-coccyx",
"description": "Comment mesure-t-on la longueur vertex-coccyx ?\nÀ quel stade de la grossesse mesure-t-on la LVC ?\nQuelle est la norme de la LVC à 12 semaines ?\nQuels outils sont utilisés pour mesurer la LVC ?\nLa LVC peut-elle prédire des anomalies ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-diagnostic"
},
{
"@type": "MedicalWebPage",
"name": "Symptômes",
"headline": "Symptômes sur Longueur vertex-coccyx",
"description": "Quels symptômes peuvent indiquer une LVC anormale ?\nLa LVC affecte-t-elle le bien-être fœtal ?\nQuels signes échographiques sont préoccupants ?\nLa LVC peut-elle être mesurée sans symptômes ?\nQuels autres facteurs influencent la LVC ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-symptômes"
},
{
"@type": "MedicalWebPage",
"name": "Prévention",
"headline": "Prévention sur Longueur vertex-coccyx",
"description": "Comment prévenir les anomalies liées à la LVC ?\nLes échographies régulières sont-elles nécessaires ?\nQuel rôle joue le mode de vie dans la LVC ?\nLes vaccinations influencent-elles la LVC ?\nLe stress maternel affecte-t-il la LVC ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-prévention"
},
{
"@type": "MedicalWebPage",
"name": "Traitements",
"headline": "Traitements sur Longueur vertex-coccyx",
"description": "Que faire si la LVC est anormale ?\nDes traitements existent-ils pour corriger la LVC ?\nComment gérer une grossesse à risque liée à la LVC ?\nLes suppléments peuvent-ils influencer la LVC ?\nLa LVC nécessite-t-elle une intervention chirurgicale ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-traitements"
},
{
"@type": "MedicalWebPage",
"name": "Complications",
"headline": "Complications sur Longueur vertex-coccyx",
"description": "Quelles complications peuvent survenir avec une LVC anormale ?\nLa LVC anormale est-elle liée à des risques accrus ?\nComment les anomalies chromosomiques affectent-elles la LVC ?\nLes complications affectent-elles le suivi de la grossesse ?\nQuelles sont les conséquences d'une LVC trop élevée ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-complications"
},
{
"@type": "MedicalWebPage",
"name": "Facteurs de risque",
"headline": "Facteurs de risque sur Longueur vertex-coccyx",
"description": "Quels facteurs augmentent le risque d'anomalies de LVC ?\nLe tabagisme influence-t-il la LVC ?\nLes maladies chroniques affectent-elles la LVC ?\nLe stress maternel est-il un facteur de risque ?\nLes infections pendant la grossesse influencent-elles la LVC ?",
"url": "https://questionsmedicales.fr/mesh/D018568?mesh_terms=Logistic+Models&page=2#section-facteurs de risque"
}
]
},
{
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "Comment mesure-t-on la longueur vertex-coccyx ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "La LVC est mesurée par échographie, en prenant la distance entre le vertex et le coccyx."
}
},
{
"@type": "Question",
"name": "À quel stade de la grossesse mesure-t-on la LVC ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "La LVC est généralement mesurée entre la 7e et la 13e semaine de grossesse."
}
},
{
"@type": "Question",
"name": "Quelle est la norme de la LVC à 12 semaines ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "À 12 semaines, la LVC normale est d'environ 5 à 6 cm, mais cela peut varier."
}
},
{
"@type": "Question",
"name": "Quels outils sont utilisés pour mesurer la LVC ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'échographie 2D est l'outil principal pour mesurer la LVC avec précision."
}
},
{
"@type": "Question",
"name": "La LVC peut-elle prédire des anomalies ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une LVC anormale peut indiquer des anomalies chromosomiques ou de développement."
}
},
{
"@type": "Question",
"name": "Quels symptômes peuvent indiquer une LVC anormale ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme des saignements ou des douleurs abdominales peuvent alerter."
}
},
{
"@type": "Question",
"name": "La LVC affecte-t-elle le bien-être fœtal ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une LVC anormale peut être associée à un risque accru de complications fœtales."
}
},
{
"@type": "Question",
"name": "Quels signes échographiques sont préoccupants ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des mesures de LVC inférieures à la normale peuvent être un signe d'inquiétude."
}
},
{
"@type": "Question",
"name": "La LVC peut-elle être mesurée sans symptômes ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la LVC est souvent mesurée lors d'examens de routine, même sans symptômes."
}
},
{
"@type": "Question",
"name": "Quels autres facteurs influencent la LVC ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des facteurs comme l'âge maternel et l'IMC peuvent influencer la LVC mesurée."
}
},
{
"@type": "Question",
"name": "Comment prévenir les anomalies liées à la LVC ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un suivi prénatal régulier et une bonne nutrition peuvent aider à prévenir les anomalies."
}
},
{
"@type": "Question",
"name": "Les échographies régulières sont-elles nécessaires ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les échographies régulières permettent de surveiller la croissance fœtale, y compris la LVC."
}
},
{
"@type": "Question",
"name": "Quel rôle joue le mode de vie dans la LVC ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un mode de vie sain, incluant l'exercice et une alimentation équilibrée, est bénéfique."
}
},
{
"@type": "Question",
"name": "Les vaccinations influencent-elles la LVC ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les vaccinations recommandées pendant la grossesse protègent la santé fœtale, mais pas la LVC."
}
},
{
"@type": "Question",
"name": "Le stress maternel affecte-t-il la LVC ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un stress élevé peut avoir des effets négatifs sur la grossesse, y compris la LVC."
}
},
{
"@type": "Question",
"name": "Que faire si la LVC est anormale ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un suivi échographique plus fréquent et des tests supplémentaires peuvent être nécessaires."
}
},
{
"@type": "Question",
"name": "Des traitements existent-ils pour corriger la LVC ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de traitement pour corriger la LVC, mais une surveillance est essentielle."
}
},
{
"@type": "Question",
"name": "Comment gérer une grossesse à risque liée à la LVC ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une approche multidisciplinaire avec des spécialistes peut être nécessaire pour la gestion."
}
},
{
"@type": "Question",
"name": "Les suppléments peuvent-ils influencer la LVC ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des suppléments comme l'acide folique peuvent soutenir le développement fœtal, mais pas la LVC."
}
},
{
"@type": "Question",
"name": "La LVC nécessite-t-elle une intervention chirurgicale ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, la LVC ne nécessite pas d'intervention chirurgicale, mais un suivi est crucial."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec une LVC anormale ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications comme le retard de croissance intra-utérin ou des malformations peuvent survenir."
}
},
{
"@type": "Question",
"name": "La LVC anormale est-elle liée à des risques accrus ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une LVC anormale peut être associée à des risques accrus de complications obstétricales."
}
},
{
"@type": "Question",
"name": "Comment les anomalies chromosomiques affectent-elles la LVC ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines anomalies chromosomiques peuvent entraîner une LVC inférieure à la normale."
}
},
{
"@type": "Question",
"name": "Les complications affectent-elles le suivi de la grossesse ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des complications peuvent nécessiter un suivi plus intensif et des interventions."
}
},
{
"@type": "Question",
"name": "Quelles sont les conséquences d'une LVC trop élevée ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une LVC trop élevée peut indiquer un risque de macrosomie fœtale ou d'autres complications."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque d'anomalies de LVC ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'âge maternel avancé, l'obésité et des antécédents familiaux d'anomalies augmentent le risque."
}
},
{
"@type": "Question",
"name": "Le tabagisme influence-t-il la LVC ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme pendant la grossesse est un facteur de risque pour des anomalies de LVC."
}
},
{
"@type": "Question",
"name": "Les maladies chroniques affectent-elles la LVC ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines maladies chroniques, comme le diabète, peuvent influencer la LVC mesurée."
}
},
{
"@type": "Question",
"name": "Le stress maternel est-il un facteur de risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un stress élevé peut affecter le développement fœtal et la LVC."
}
},
{
"@type": "Question",
"name": "Les infections pendant la grossesse influencent-elles la LVC ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines infections peuvent affecter la croissance fœtale et la LVC mesurée."
}
}
]
}
]
}
With the economic development, smart communities have been widely studied and applied. However, the system in this field is not perfect, and there are still a series of problems, such as high construc...
Here we present a novel machine-learning approach to predict protein aggregation propensity (PAP) which is a key factor in the formation of amyloid fibrils based on logistic regression (LR). Amyloid f...
There are no prediction models for bile leakage associated with subtotal cholecystectomy (STC). Therefore, this study aimed to generate a multivariable prediction model for post-STC bile leakage and e...
We analysed prospectively managed data of patients who underwent STC by a single consultant surgeon between 14 May 2013 and 21 December 2021. STC was schematised into four variants with five subvarian...
A total of 81 patients underwent the STC procedure. Twenty-eight patients (35%) developed bile leakage. Of these, 18 patients (64%) required secondary surgical intervention. Multivariable logistic reg...
Open-tract STC and acute cholecystitis are the most reliable predictors of bile leakage associated with STC. Future prospective, multicentre studies with higher statistical power are needed to generat...
Cell proliferation often experiences a density-dependent intrinsic proliferation rate (IPR) and negative feedback from growth-inhibiting molecules in culture media. The lack of flexible models with ex...
Proteomics technology has been used in various fields in recent years for the Q6 exploration of novel markers and the study of disease pathogenesis, and has become one of the most important tools for ...
In our previous study we used DIA proteomics to screen for proteins that were significant in 31 PCOS patients compared to women of normal reproductive age. In this study, we used logistic regression a...
We constructed a logistic model using these protein markers, where HIST1H4A (OR=1.037) was an independent risk factor for polycystic ovary syndrome and TREML1 (OR=0.976) were protective factors for th...
Our study is the first to use proteomic results with clinical biochemical data to construct a logistic regression model, and the model is consistent. However, our study still needs a more complete sam...
To establish the risk scoring model for HIV-negative neurosyphilis (NS) patients and to optimize the lumbar puncture strategy....
From 2016 to 2021, clinical information on 319 syphilis patients was gathered. Multivariate logistic regression was used to examine the independent risk factors in NS patients who tested negative for ...
There were statistically significant differences between HIV-negative NS and non-neurosyphilis (NNS) patients in the following factors. These included age, gender, neuropsychiatric symptoms (including...
The risk scoring model in this study can classify the risk of neurosyphilis in syphilis patients, optimize the lumbar puncture strategy to a certain extent, and provide ideas for the clinical diagnosi...
Adjustment for baseline prognostic factors in randomized clinical trials is usually performed by means of sample-based regression models. Sample-based models may be incorrect due to overfitting. To as...
We conducted a simulation study using samples drawn from a "population" in which both the treatment effect and the effect of the potential confounder were specified. The outcome variable was binary. U...
Sample-based adjustment models yielded more biased estimates of the treatment effect than adjustment models that used the true confounder effect but had similar variance, accuracy, power, and type 1 e...
Sample-based adjustment yields similar results to exact adjustment in estimating the treatment effect. Sample-based adjustment is preferable to no adjustment....
The validation of mathematical models of tumour growth is frequently hampered by the lack of sufficient experimental data, resulting in qualitative rather than quantitative studies. Recent approaches ...
The multiscale expansion of logistic growth models was performed by coupling gene expression profiles to the cell death rates. State-of-the-art Bayesian inference, likelihood maximisation and uncertai...
The results suggest that the classical single-cell population model (SCPM) was the best fit for the untreated and low-dose treatment conditions, while the multiscale model with a cell death rate symme...
Overall, the present study demonstrates that model performance can be improved by incorporating multiscale measurements of tumour growth when high-dose treatment is involved....
Multinomial logistic regression models allow one to predict the risk of a categorical outcome with > 2 categories. When developing such a model, researchers should ensure the number of participants (...
The first criterion aims to minimise the model overfitting. The second aims to minimise the difference between the observed and adjusted...
We tested the performance of the proposed criteria (i) through a simulation study and found that it resulted in the desired level of overfitting. Criterion (ii) and (iii) were natural extensions from ...
We illustrated how to implement the sample size criteria through a worked example considering the development of a multinomial risk prediction model for tumour type when presented with an ovarian mass...
This study aimed to explore the risk factors for failed treatment of carbapenem-resistant...
A total of 189 CRAB-VAP patients were included in the safety analysis set from two Grade 3 A national-level hospitals between 1 January 2022 and 31 December 2022. The risk factors for failed treatment...
Of the 189 patients, 106 (56.1%) patients were in the successful treatment group, and 83 (43.9%) patients were in the failed treatment group. The multivariate logistic model analysis showed that age (...
Age, hypoproteinemia, daily dose, medication within 14 days prior to surgical intervention, and microbial clearance are all significant risk factors for failed treatment with CRAB-VAP, with the nomogr...