Epidural Catheter Placement Techniques by Anesthesia Residents: Success and Complications (EPİ-TECH)
Anesthesia Residents' Epidural Catheter Placement Techniques: A Prospective Observational Study on Success Rates and Complications
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Description détaillée
Type d'étude
Type d'étude
Inscription (Estimé)
Inscription
Contacts et emplacements
Coordonnées de l'étude
Coordonnées de l'étude
- Nom: dilara göçmen, Asst prof
- Numéro de téléphone: +90 216 625 4545
- E-mail: dilara.gocmen@marmara.edu.tr
Lieux d'étude
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Maltepe
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Istanbul, Maltepe, Turquie (Türkiye), 34852
- Marmara University Pendik Training and Research Hospital
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Contact:
- dilara göçmen, Asst prof
- Numéro de téléphone: +90 216 625 4545
- E-mail: dilara.gocmen@marmara.edu.tr
-
-
Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Age 18-80 years
- ASA physical status I, II, or III
- Scheduled for elective surgery requiring perioperative epidural analgesia or anesthesia (lumbar or thoracic approach)
- Epidural catheter to be placed by a resident with ≥ 2 years of anesthesia training
Exclusion Criteria:
- Spinal deformity (scoliosis, kyphosis, or prior spinal surgery at the target level)
- Coagulopathy or anticoagulant therapy precluding neuraxial blockade
- Active infection at the insertion site or systemic infection
- Pre-existing neurological disease affecting the spinal cord or nerve roots
- Emergency surgery
- History of prior failed epidural catheterization
- Patient refusal or inability to provide written informed consent
- Local anatomical pathology precluding safe epidural access
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Nombre de groupes / cohortes
Cohortes et interventions
Groupe / CohorteGroupe / Cohorte |
Intervention / TraitementIntervention / Traitement |
|---|---|
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Loss of Resistance (LOR) Group
Patients in whom the epidural space is identified using the loss of resistance technique.
The attending resident uses a syringe filled with air or normal saline attached to the Tuohy needle hub and advances until resistance disappears upon entering the epidural space.
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Epidural catheterization performed using an 18G Tuohy needle and standard catheter set by anesthesia residents with a minimum of two years of training, under specialist supervision.
Technique selection (LOR or HD) is at the discretion of the performing resident and is not randomized.
Autres noms:
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Hanging Drop (HD) Group
Patients in whom the epidural space is identified using the hanging drop technique.
A drop of normal saline is placed at the Tuohy needle hub and observed to be aspirated inward by the negative epidural pressure as the needle tip traverses the ligamentum flavum.
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Epidural catheterization performed using an 18G Tuohy needle and standard catheter set by anesthesia residents with a minimum of two years of training, under specialist supervision.
Technique selection (LOR or HD) is at the discretion of the performing resident and is not randomized.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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First-attempt success rate
Délai: Time Frame: Immediately upon procedure completion
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Defined as successful epidural space identification and catheter placement in a single Tuohy needle insertion attempt, without redirecting the needle.
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Time Frame: Immediately upon procedure completion
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Dural puncture rate
Délai: Intraoperative
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Inadvertent dural puncture defined as free flow of cerebrospinal fluid through the Tuohy needle or epidural catheter, confirmed by visual inspection.
Recorded as yes/no by the independent observer at the time of the procedure
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Intraoperative
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Catheter Advancement Failure Rate
Délai: intraoperative
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Inability to thread the epidural catheter beyond 3 cm into the epidural space despite confirmed needle placement, necessitating needle repositioning or procedure abandonment.
Recorded as yes/no by the independent observer.
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intraoperative
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Operator-Assessed Difficulty Score
Délai: Immediately after procedure completion
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The performing resident rates the overall technical difficulty of the procedure immediately upon completion using a 5-point Likert scale: 1 = very easy, 2 = easy, 3 = moderate, 4 = difficult, 5 = very difficult.
Recorded on the standardized data collection form
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Immediately after procedure completion
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Intravascular catheter placement rate
Délai: intraoperative
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Unintentional intravascular placement defined as aspiration of blood through the epidural catheter prior to test dose administration.
Recorded as yes/no by the independent observer immediately following catheter advancement
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intraoperative
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Postoperative Pain Scores
Délai: 0, 6, 12, and 24 hours postoperatively
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Pain intensity assessed using the Numerical Rating Scale (NRS), where 0 = no pain and 10 = worst imaginable pain.
Recorded at four time points: immediately upon arrival to the recovery unit (0 hours), and at 6, 12, and 24 hours postoperatively by the independent observer.
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0, 6, 12, and 24 hours postoperatively
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Rate and Type of Assistance Required During Catheter Placement
Délai: Intraoperative
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The level of assistance received by the performing resident is recorded in three categories: (1) No assistance - procedure completed independently; (2) Verbal guidance only - supervising specialist provides verbal instructions without physical intervention; (3) Physical assistance - supervising specialist takes over needle or catheter manipulation partially or completely.
Recorded by the independent observer at the time of the procedure.
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Intraoperative
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First-Attempt Success Rate Stratified by Resident Seniority Level
Délai: Intraoperative
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First-attempt success rates are compared across three seniority strata defined by duration of anesthesia training: junior residents (2-3 years), intermediate residents (3-4 years), and senior residents (4 years and above).
Seniority is determined by the total duration of anesthesia specialty training at the time of the procedure.
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Intraoperative
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Publications et liens utiles
Publications générales
- 1. Hoffmann VL, Vercauteren MP, Vreugde JP, Hans GH, Coppejans HC, Adriaensen HA. Posterior epidural space depth: safety of the loss of resistance and hanging drop techniques. British Journal of Anaesthesia. 1999;83(5):807-811. 2. Günaydın B, Tan A, Doğru O, Mutlu M, Öztürk G, Güler HG. Comparison of spring-loaded, loss of resistance and hanging drop techniques in lumbar epidural blocks. Agri. 2012;24(1):13-18. 3. Azizov S, Okcu M, Goksu H. Could the Hanging Drop Technique Be an Alternative Method to Loss of Resistance in Cervical Epidural Injections? Pain Physician. 2025;28:217-221. 4. Tran DQH, González AP, Bernucci F, Finlayson RJ. Confirmation of Loss-of-Resistance for Epidural Analgesia. Regional Anesthesia and Pain Medicine. 2015;40(2):166-173. 5. Yoshida K, Tanaka S, Watanabe K. Hanging-Drop Technique Is More Suitable for Epidural Space Confirmation in Patients With Subcutaneous Emphysema After Traumatic Multiple Rib Fractures. Journal of Cardiothoracic and Vascular Anesthesia. 2023;37(12). 6. Konrad C, Schüpfer G, Wietlisbach M, Gerber H. Learning manual skills in anesthesiology: Is there a recommended number of cases for anesthetic procedures? Anesthesia & Analgesia. 1998;86(3):635-639. 7. De Oliveira GS, Glassenberg R, Chang R, Fitzgerald P, McCarthy R. Virtual airway simulation to improve dexterity among novices performing fibreoptic intubation. Anaesthesia. 2013;68(10):1053-1058. 8. Kopacz DJ, Neal JM, Pollock JE. The regional anesthesia learning curve. Regional Anesthesia. 1996;21(3):182-190. 9. Naik VN, Devito I, Halpern SH. Cusum analysis is a useful tool to assess resident proficiency at epidural anesthesia. Canadian Journal of Anesthesia. 2004;51(7):703-708.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Début de l'étude
Achèvement primaire (Estimé)
Achèvement primaire
Achèvement de l'étude (Estimé)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- mü anesthesia
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