Epidural Anesthesia

Accurate estimation of epidural depth is critical for safe epidural anesthesia during percutaneous nephrolithotomy (PCNL). Although various imaging modalities can predict epidural depth, they increase healthcare burden and are not always feasible in emergency or bedside settings. Identifying simple, easily obtainable clinical parameters-such as sex, age, and body mass index (BMI)-for predicting epidural depth has become a research priority. However, systematic investigations specifically targeting the Chinese population remain scarce. This retrospective study aims to identify independent factors influencing epidural depth in PCNL patients and to develop simple, level-specific predictive models for different puncture sites, thereby providing a practical reference for clinical epidural anesthesia.

Childbirth is a special event for women. Maternal satisfaction regarding childbirth is quite important, that is why this factor has to be taken into account. A bad experience related to childbirth could lead to serious psychological and organic consequences such as postpartum depression, mother-baby bond deterioration and chronic pelvic pain. Childbirth image changed over the years to the extent that an increasingly physiological process keeping analgesia and safety is more and more desired. In this perspective, this study aims to investigate an approach so-called ambulatory epidural. Indeed, only a few studies have been conducted and the ones published in 1990s did not involve the current recommended pharmacological protocols.

This prospective observational study aims to evaluate the impact of epidural catheter placement techniques - loss of resistance (LOR) and hanging drop (HD) - on first-attempt success rates and procedural complications among anesthesia residents. Residents with at least two years of training will perform epidural catheterization under supervision for patients scheduled for elective surgery requiring perioperative epidural analgesia. An independent observer will record procedural details, complications, and postoperative pain scores. The study will enroll 440 patients aged 18-80 with ASA I-III classification.

Objectives: To compare the safety and efficacy of nylon (polyamide) epidural catheter versus polyurethane epidural catheter in patients undergoing major orthopedic surgery under continuous epidural anesthesia. Background: Continuous epidural anesthesia is the most common anesthetic technique used in orthopedic surgery. However, the use of epidural catheters is associated with complications. The insertion of the catheter may be associated with intravascular or intrathecal placement, nerve root irritation, paresthesia, kinking, hematoma, or breakage during catheter removal. Patients and Methods: This was a prospective, randomized, double-blind clinical trial; carried out on 60 patients undergoing major orthopedic surgery under continuous epidural anesthesia. Patients were randomly allocated into two equal groups; group N, using Nylon catheter, and group P, using Polyurethane catheter.

In our high volume center, the majority of esophagectomy procedures are performed with minimally invasive techniques. The thoracic epidural technique remains the gold standard and homolateral paravertebral catheter is strongly recommended. The vasoplegia and sympathetic blockade due to the epidural can cause significant hypotension especially as reverse Trendelenburg position is required during surgery. The aim is to study hemodynamic changes caused by two different techniques. Previous studies found a similar pain management between both locoregional techniques, however few studies suggested less side effects in the paravertebral group during major abdominal surgeries.