Colorectal cancer rates following a barium enema or colonoscopy: Table 1
Notice bibliographique
Résumé
Introduction Colonoscopy and removal of adenomatous polyps has been shown to reduce subsequent cancer risk. In Canada, Rabeneck et al found that over a 14 year period, a negative colonoscopy was associated with a reduced incidence of subsequent colorectal cancer (CRC) in the distal colon; but little reduction in the incidence of proximal CRC at least for the first 7 years after the colonoscopy.1 With this in mind we reviewed the incidence and distribution of CRC in our population following colonic evaluation. Our unit is the third largest colorectal cancer unit in the UK. Between 2005 and 2010 there were 2611 cases of CRC, during this period 17 263 colonoscopies and 13 767 barium enemas were performed. Table 1 PTU-013 The location of a CRC in those patients who had had a previous colonoscopy or barium enema Location All CRC (2611) Prior colonoscopy (13) Prior barium enema (96) Left 62% (1619) 46.2% (6) 42.5% (45) Right 38% (992) 53.8% (7) 48.1% (51) Methods By interrogating the patient administration system of our hospital we were able to identify those patients who had had a colonoscopy or barium enema done over 12 months prior to their CRC diagnosis being made, we collected data from the last 10 years. We chose this 12 month period to avoid those patients who had had an examination that led to a diagnosis of CRC. Results 106 patients had a barium enema between 12 and 118 months before a diagnosis of colorectal cancer was made. 48.1% (51) were located in the right side of the colon, 42.5% (45) were located in the left side of the colon. In the remaining 9.4% (10) the location was unknown. These missed cancers were most frequently located in the caecum 23.5% (25), sigmoid 16.9% (18) and ascending colon 13.2% (14). 13 patients had a colonoscopy between 25 and 116 months prior to a diagnosis of colorectal cancer being made. 53.8% (7) of these were located in the right side of the colon and 46.2% (6) of these were located in the left side of the colon. These tumours were most frequently located in the caecum 30.7% (4), transverse colon 23.0% (3) and rectum 23.0% (3). Conclusion There was significantly more right sided cancers in the prior colonoscopy and barium enema groups (chi squared = 11.29, p < 0.001) consistent with earlier data from Canada. There was a ten fold increased miss rate with barium enema over colonoscopy and this would support the service moving away from barium enemas to colonoscopy.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».