Clinical trials: Surgical Positioning
Shoulder Injuries, Anesthesia
The Effects of Preloading Before Beach Chair Position
The main objective of this study is whether preloading before positioning would be effective for less hemodynamic instability. The study also analyzes that patients with preloading will decrease postoperative nausea and vomiting…
- Conditions
- Shoulder Injuries, Anesthesia, Hemodynamic Instability
- Trial name
- NCT04671537
- Testing
- Preloading with crystalloid fluid
- Where
- Turkey (Türkiye)
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Istanbul University
CAD-CAM, Patients Specific Manufacturing
Analysis of Mandibular Proximal Segment Position Using Virtual Orthognathic Surgical Planning, Individualized Guides, and Osteosynthesis Plates
Orthognathic surgery is a surgical procedure performed to correct dentofacial deformities. In recent years, with the use of virtual surgical planning, cutting guides, and patient-specific osteosynthesis plates, highly predictable…
- Conditions
- CAD-CAM, Patients Specific Manufacturing, Osteotomy, Sagittal Split Ramus
- Trial name
- NCT06442787
- Testing
- conventional splints, cutting guides and positioning guides, cutting guides and fixation plates
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Misadventure During Surgical Operation, Postoperative Complications
Trendelenburg's Slide Prevention Study
The purpose of this study is to compare two cushioning materials (a gel mattress and an egg-crate foam mattress) placed beneath patients undergoing gynecologic surgery to prevent patients from sliding toward the head of the bed…
- Trial name
- SPS (NCT01068821)
- Testing
- Gel pad, Egg crate foam mattress
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Anesthesia; Adverse Effect, Spinal and Epidural, Hip Arthropathy
Comparison of Three Different Sitting Positions for Performing Combined Spinal-Epidural Anesthesia
In this prospective and randomized study, we aimed to compare the effect of of three sitting positions (the traditional sitting position (TSP), the harmstring stretch position (HSP), and the squatting position on the success rate…
- Conditions
- Anesthesia; Adverse Effect, Spinal and Epidural, Hip Arthropathy, Knee Arthropathy
- Trial name
- NCT03541798
- Testing
- positions of patients for combined spinal-epidural anesthesia, Combined spinal epidural anesthesia
- Where
- Turkey (Türkiye)
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Diskapi Teaching and Research Hospital
Fetal Volvulus, Midgut Volvulus
Prenatal Diagnosis of Antenatal Midgut Volvulus: Specific Ultrasound Features
Objective: The small bowel volvulus is a rare cause of intestinal obstruction which may occur in utero and whose prenatal diagnosis is difficult.Sonographic signs are mainly indirect and non specific.The aim of this study is to…
- Trial name
- NCT03362450
- Testing
- Fetal ultrasound during the second or third trimester/ Postnatal surgery / Post mortem examination
- Where
- France
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
Mechanical Ventilation
The Effect of Intraoperative Ventilation Mode on Hemodynamics and Lung Dynamics
In this study, it was aimed to compare the effects of pressure-controlled volume-guaranteed ventilation (PCV-VG) and volume-controlled ventilation (VCV) on lung dynamics and hemodynamics in patients undergoing vertebral surgery…
- Trial name
- NCT05776589
- Testing
- The mechanical ventilation mode
- Where
- Turkey (Türkiye)
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Izmir Ataturk Training and Research Hospital
Intraocular Pressure, Retinal Nerve Fiber Bundle Deficiency
Effect of Steep Trendelenburg in Laparoscopic Surgery on IOP & RNFL Thickness
The effect of Steep Trendelenburg position used during laparoscopic surgery on intraocular pressure during surgery and on the retinal nerve fiber thickness after surgery
- Trial name
- NCT03097705
- Testing
- OCT (Optical coherence tomography)
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Carmel Medical Center
Lefort I Osteotomy
Waferless One Stage Segmental Lefort I Maxillary Positioning in Transverse Deficiency
In Maxillary transverse deficiency, is waverless lefort I multiple pieces osteotomy using virtually planned patient specific titanium implants feasible and does it provide accuracy? This prospective case series study evaluating…
- Trial name
- NCT03884699
- Testing
- Accuracy of planned transverse Maxillary distance using Mimics software after fixation using Patient specific implant
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Cairo University
Post Operative Pain
Dexamethasone or Dexmedetomidine as Adjunct in Fascia Iliaca Block During Positioning for Sub-arachnoid Block & Post-operative Analgesia After Femur Neck Fracture Surgery: A Randomized Control Trial
Femur fracture is a common injury occurring in the young due to trauma as well as amongst the elderly due to fall. Reduction and fixation of femur fractures pose a challenge to the anesthesiologist.
- Trial name
- NCT05484648
- Testing
- Dexamethasone, Dexmedetomidine
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Aga Khan University Hospital, Pakistan
Lung Cancer, Pneumothorax
Effect of Lateral Positioning on Bronchial Cuff Pressure of Left-sided Double-lumen Endotracheal Tube During Thoracic Surgery
The investigators evaluate the effect of postural change on the bronchial cuff pressure (BCP) of double-lumen endotracheal tube (DLT) in patients undergoing thoracic surgery, by observing the pressure of the bronchial cuff before…
- Trial name
- NCT03656406
- Testing
- Lateral decubitus positioning, Cuff-manometer
- Where
- South Korea
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Daegu Catholic University Medical Center
Morbid Obesity, Bariatric Surgery Candidate
EPO2-PV: Evaluation of Pre-Oxygenation Conditions in Morbidly Obese Volunteer: Effect of Position and Ventilation Mode
The risk of complications associated with airway management in obese patients is significant. The results of pre-oxygenation allow a prolonged non-hypoxic apnea time for the clinician.
- Trial name
- EPO2-PV (NCT02121808)
- Testing
- NIPPV, Tidal volume
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Laval University
Completely Edentulous, Implant Assesment
Fully Versus Partially Guided Implants Placement: Measurement of Accuracy of Implant Position and Passivity of Superstructures.
compare fully versus partially guided all on four implants placement immediately loaded by maxillary and mandibular screw retained overdentures: A radiographic and photogrammetric measurement of accuracy of implant position and…
- Trial name
- NCT07174791
- Testing
- cone beam computed tomography, photogrammetric scan using elite scanner (shining 3d)
- Where
- Egypt
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Unicompartmental Knee Replacement, Osteo Arthritis Knee
RCT: Mako Medial Unicondylar Knee Arthroplasty vs Oxford Unicondylar Knee Arthroplasty
The overall aim of this prospective, randomised, single-blinded, controlled trial is to compare clinical outcomes and accuracy of implant positioning in Mako robotic UKA versus jig-based Oxford UKA with navigation control.
- Conditions
- Unicompartmental Knee Replacement, Osteo Arthritis Knee, Surgery
- Trial name
- NCT04095637
- Testing
- Medial knee arthroplasty
- Where
- United Kingdom
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- University College, London
Jugular Venous Blood Flow
Jugular Venous Flow Healthy Volunteers
Our hypothesis is that there will be a decrease in internal jugular venous flow in the park bench position when compared to the supine position.
- Trial name
- NCT02002494
- Testing
- Different positions
- Where
- Canada
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto
Anesthetized Healthy Patients (ASA 1 or 2) in the Supine Position, Excluding Head, Neck and Head Surgeries, Anesthetized Patient With Severe Systemic Disease (ASA 3 or 4)
Gas Kinetics and Metabolism in Anesthesia During Non Steady State
During clinical anesthesia, it is astonishing that CO2 monitoring consists mainly of end-tidal PCO2 to confirm endotracheal intubation and to estimate ventilation, and O2 monitoring consists of a single PO2 measurement to detect…
- Trial name
- NCT00225381
- Testing
- connection of measuring device to anesthesia circuit, drawing of blood sample through an arterial line, placed according to clinical criteria by primary anesthesia team, changing operating room bed position (head down and up position)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of California, Irvine
Perfusion
Patient Positions and Perfusion Index
The association between patient positions including supine,prone, trendelenburg,reverse trendelenburg,45 degrees back up sitting position, 45 degrees legs lifted supine position and perfusion index.
- Trial name
- NCT03121443
- Testing
- Perfusion index
- Where
- Turkey (Türkiye)
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Thyroid Cancer, Thyroid and Parathyroid Surgery
The Effect of Head Position on the Optik Nerve Sheath Diameter in Patients During Thyroid Surgery
THE EFFECT OF HEAD POSİTİON ON THE OPTİC NERVE SHEATH DİAMETER İN PATİENTS DURİNG THYROİD SURGERY
- Conditions
- Thyroid Cancer, Thyroid and Parathyroid Surgery, Thyroid Adenoma
- Trial name
- NCT07298187
- Where
- Turkey (Türkiye)
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Istanbul University - Cerrahpasa
Intra-operative Bleeding
Can Head Position Improve Surgical Field During Ear Surgery?
Middle ear surgeries utilizes microscope in a narrow field. They are better performed under controlled hypotension, to minimize bleeding and improve surgical field visualization and hence improve results.Head-up or…
- Trial name
- NCT04095754
- Testing
- Head-Up Position, Dexmedetomidine, Induction and maintenance of anaesthesia
- Where
- 2 sites in Egypt
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Lung Ultrasound, Atelectasis
Surgical Positions and Postoperative Atelectasis: A Lung Ultrasound Study
The aim of this study is to prospectively evaluate the effect of surgical position on the development of postoperative atelectasis in patients undergoing surgery in supine, prone, lateral decubitus, and lithotomy positions using…
- Trial name
- NCT07654153
- Testing
- lung ultrasound
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Cumhuriyet University
Endotracheal Cuff, Adenoidectomy Surgery
Effect of Neck Hyperextension on Endotracheal Tube Cuff Pressure in Children
Introduction: Patients undergoing surgery under general anaesthesia are frequently intubated with an endotracheal tube (ETT). The safety margin of ETT cuff pressure is between 20-30 cmH2O.
- Conditions
- Endotracheal Cuff, Adenoidectomy Surgery, Tonsillectomy with or Without Adenoidectomy, Position Differences
- Trial name
- NCT06767696
- Testing
- Cuff pressure measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Ankara Ataturk Sanatorium Training and Research Hospital