Antegrade Versus Retrograde Cholecystectomy: What’s in a Name?
Notice bibliographique
Résumé
I have read the article entitled “Laparoscopic anterograde cholecystectomy in acute cholecystitis” with much interest [1]. The word antegrade refers to moving or extending forward as opposed to retrograde which implies moving backward or opposite to the direction of flow. These are commonly used in medical terminology as a cholangiogram done from the ampulla toward the bile duct is an endoscopic retrograde cholangiopancreatography; similarly, a retrograde pyelogram refers to intravasation of contrast from the urethra toward the kidneys. Also when referring to endovascular vessel access, an antegrade approach confers with cannulation of the vessel proximal to site of the lesion, whereas in a retrograde approach, the access vessel is distal to the target lesion. Therefore, it appears that the terms antegrade and retrograde not only take into consideration direction of flow but also the relative anatomical position. Interestingly flow of bile is bi-directional in a reversed manner from the bile duct into the cystic duct when sphincter of Oddi is closed and in a forward direction with contraction of the gallbladder and relaxation of the sphincter of Oddi [2]. This concept of flow therefore cannot be used as a basis for determination of antegrade or retrograde cholecystectomy. The terms antegrade and retrograde cholecystectomy have been introduced over time and with the advances in surgical practice. However, to apply these terms descriptively to the removal of the gallbladder is very enigmatic and controversial as the literature is fraught with inconsistency. I refer to Kelly et al where a retrograde cholecystectomy is considered a fundus first approach [3]. Contradictory to this, Neri et al describes a fundus first approach as antegrade [4]. Admittedly this concept was difficult to grasp; however, antegrade or retrograde is based on the surgeon’s perspective and his intended end point. The current standard for cholecystectomy is via a laparoscopic approach with initial dissection of Calot’s triangle followed by fundic dissection off the liver bed. Theoretically from the laparoscopic surgeon’s perspective, this is an antegrade dissection, and the same is true for an open procedure where the fundus is dissected followed by Calot’s triangle. Prior to the laparoscopic era in the 1980s, this terminology was also surrounded by much controversy. As highlighted there is confusion and the accuracy of the nomenclature comes into question. It is advised that there is standardization of the terminology. We recommend that the terms antegrade and retrograde be substituted for “Fundus First” and “Calot’s First” approach for cholecystectomy.
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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 | 0,013 | 0,028 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,002 |
| 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 ».