Clinical trials: Surgical Positioning
Infants or Children Undergoing Open Heart Surgery
The Influence of Passive Leg Elevation on the Cross-sectional Area of the Internal Jugular Vein in Infants or Young Children Undergoing Open Heart Surgery
The trendelenburg position is usually applied to increase the cross-sectional area of the IJV. However, trendelenburg position requires a tilt table to place the head in the down position.
- Trial name
- NCT01401920
- Testing
- leg elevation, Trendelenburg position, Trendelenburg position + passive leg elevation
- Where
- South Korea
- Volunteers
- 90 people
- Sponsor
- Samsung Medical Center
Partially Edentulous Jaw, Accuracy of Dental Implant Placement
3D Evaluation of Free-handed-Countersink Guided and Fully Guided Implant Surgery in Partially Edentulous Patients
This clinical trial with a quasi-experimental design investigates the accuracy of dental implant placement using three different surgical approaches: free-handed countersink guided, fully-guided, and traditional freehand…
- Conditions
- Partially Edentulous Jaw, Accuracy of Dental Implant Placement, Implant Deviation and Positioning Errors, Proximity to Anatomical Structures
- Trial name
- NCT07061418
- Testing
- Dental Implant
- Where
- Palestinian Territories
- Volunteers
- 15 people
- Sponsor
- Islamic University of Caza, Gaza, Palestine
Intraoperative Hypotension, Cerebral Ischemia
Effect of Leg Elevation on Prevention of Intraoperative Hypotension During Beach Chair Position
The aim of this study is to evaluate the effect of leg elevation on the prevention of intraoperative hypotension during shoulder surgery in the Beach-chair position.
- Conditions
- Intraoperative Hypotension, Cerebral Ischemia, Shoulder Disease
- Trial name
- NCT03393559
- Testing
- leg elevation
- Where
- South Korea
- Volunteers
- 50 people
- Sponsor
- Seoul National University Hospital
Cataract and IOL Surgery
HUD Surgical Guidance for Toric Alignment
This study aims to assess the accuracy of toric intraocular lens (IOL) alignment axes as calculated and displayed by a novel digital guidance system.
- Trial name
- CG-Toric (NCT07325188)
- Testing
- Cassini Guidance
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Gainesville Eye Associates
Pneumoperitoneum, Trendelenburg Position
End-expiratory Pressure During Laparoscopic Surgery in the Trendelenburg Position by Electrical Impedance Tomography
Pneumoperitoneum (PNP) and the position of the patient required for laparoscopic surgery lead to pathophysiological changes that complicate anesthesia.
- Conditions
- Pneumoperitoneum, Trendelenburg Position, Laparoscopic Surgery
- Trial name
- CP-EIT (NCT06481124)
- Testing
- electrical impedance tomography
- Where
- Russia
- Volunteers
- 50 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
General Anesthesia Induction for Elective Surgery, Sono Guided Catheterization
Sonographic Safety Margins of Subclavian Vein: Effect of View and Arm Position
The purpose of this observational study is to evaluate and compare the anatomical safety margins of the subclavian vein using ultrasound.
- Trial name
- NCT07556770
- Testing
- Non-invasive sonographic observation
- Where
- South Korea
- Volunteers
- 55 people
- Sponsor
- Asan Medical Center
Postoperative Pulmonary Complications (PPCs), Cardiac Surgery With Sternotomy
Effect of Positioning and ACBT on Pulmonary Complications After Cardiac Surgery
The goal of this quasi-experimental clinical trial is to learn if position management combined with the Active Cycle of Breathing Techniques (ACBT) works to reduce postoperative pulmonary complications in adult patients…
- Conditions
- Postoperative Pulmonary Complications (PPCs), Cardiac Surgery With Sternotomy, Atelectasis, Postoperative Pneumonia
- Trial name
- P-ACBT (NCT07612033)
- Testing
- Structured Position Management Protocol, Active Cycle of Breathing Techniques (ACBT)
- Where
- Egypt
- Volunteers
- 124 people
- Sponsor
- Assiut University
Surgery
Effect of Head Rotation on Overlap and Relative Position of Internal Jugular Vein to Carotid Artery in Infants and Children: A Study of the Anatomy Using Ultrasonography
Effect of head rotation on overlap and relative position of internal jugular vein to carotid artery in infants and children: A study of the anatomy using ultrasonography.
- Trial name
- NCT01017328
- Where
- South Korea
- Volunteers
- 120 people
- Sponsor
- Yonsei University
Hemodynamic Changes, Surgical Positioning
Surgical Position and Hemodynamics in PCNL
This prospective study aims to evaluate the hemodynamic effects of different surgical positions-supine, lithotomy, and prone-in patients undergoing percutaneous nephrolithotomy (PCNL).
- Conditions
- Hemodynamic Changes, Surgical Positioning, Percutaneous Nephrolithotomy (PCNL)
- Trial name
- NCT07109232
- Testing
- Position the patient
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Ataturk University
Osteoarthritis, Hip, Osteoarthritis
Conventional Total Hip Arthroplasty vs Mako Robotic-arm Assisted Total Hip Arthroplasty
The overall aim of this single-centre, prospective randomised controlled trial is to compare clinical, functional, and radiological outcomes in CO THA versus Mako THA.
- Conditions
- Osteoarthritis, Hip, Osteoarthritis, Surgery
- Trial name
- NCT04095845
- Testing
- CO THA, Mako THA
- Where
- United Kingdom
- Volunteers
- 60 people
- Sponsor
- University College, London
Dental Implant
Accuracy of Dental Implant Position Robotic Assistance, Dynamic Navigation, or Static Guide?
For free hand dental implant placement, a key difficulty is to accurately control the position. Improving precision of dental implant placement is considered important for safety and efficacy of tooth replacement with dental…
- Trial name
- NCT05892406
- Testing
- Static guide, Dynamic navigation, Robotic system
- Where
- 2 sites in China
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
the Intraoperative Hypotensionn, the Brain Exygenation
Nonoinvasive HPI in Beach-chair Position
Intraoperative hypotension (defined as mean arterial pressure <65 mmHg) is a common occurrence during anesthesia and has been associated with increased risk of intraoperative hypoxia and postoperative complications, including…
- Trial name
- NCT07554599
- Testing
- HPI, no HPI
- Volunteers
- 60 people
- Sponsor
- National Taiwan University Hospital
Lower Limb Surgery
Comparison of Two Position for Ultrasound Guided Lumbar Plexus and Sciatic Nerve Block
In the present study, the investigators will test the effect of two position on posterior lumbar plexus and subgluteal or sub-greater trochanter sciatic nerve block.
- Trial name
- NCT00988234
- Testing
- SGPP, SGTPP, SGLP
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Huazhong University of Science and Technology
Morbid Obesity, Obesity
Optic Nerve Sheath Diameter Changes During Bariatric Surgery
This prospective clinical study aimed to evaluate the effects of pneumoperitoneum and patient positioning on intracranial pressure in patients undergoing bariatric surgery.
- Trial name
- NCT07662538
- Testing
- Optic Nerve Sheath Diameter Measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 58 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Intervertebral Disk Degeneration
Patient Positioning in Lumbar Fusion Surgery and Its Impact on Spinal Sagittal Balance and Surgeon Satisfaction
This is a parallel, randomized controlled trial comparing two types of patient positioning and their effect on radiologic measures (pre-surgery visit, in the operating room prior to surgery, at the conclusion of surgery, and at 3…
- Trial name
- NCT01326091
- Testing
- Hyperlordotic Positioning
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Duke University
Cardio-pulmonary
Cardiopulmonary Changes Prolonged Surgical Abdominal Retractors Application in Supine Versus Lateral Position
Introduction: Dynamic and static compliance should be calculated as a routine part of ventilator monitoring. Dynamic and static compliance are 60-100 mL/cm H2O.
- Trial name
- NCT03776292
- Testing
- monitoring
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Mansoura University
Spinal Stenosis, Lumbosacral Region
Stability Comparison of TIVA and Sevoflurane in Prone Spinal Surgery(TIVA:Total Intravenous Anesthesia)
Key Points: 1. Objective: o To compare the effects of Total Intravenous Anesthesia (TIVA) and sevoflurane anesthesia on respiratory mechanics, hemodynamic parameters, and neuromonitoring during prone position spinal surgeries. 2.
- Trial name
- TIVA (NCT06558695)
- Testing
- Sevoflurane, TIVA
- Where
- Turkey (Türkiye)
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Saglik Bilimleri Universitesi
Optic Nerve Cup, Intracranial Pressure Increase
Effect of Lithotomy Position on Optic Nerve Sheath Diameter
In this study, the effect of increased venous return and increased intra-abdominal pressure on intracranial pressure in the lithotomy position was evaluated.
- Trial name
- NCT06464419
- Testing
- ultrasound
- Where
- Turkey (Türkiye)
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Başakşehir Çam & Sakura City Hospital
Craniotomy, Brain Tumor
Sitting Versus Horizontal Position on Craniotomies
The main objectives of this study are comparison of the incidence of intraoperative air embolism and the extent of blood loss in patients undergoing posterior cranial fossa (PCF) and pineal region (PR) surgeries in sitting and…
- Trial name
- NCT03364283
- Testing
- Surgical position
- Volunteers
- 109 people
- Sponsor
- Ohio State University
Surgery, Complications, Postoperative
Effects of Prone Position After Major Abdominal Surgery
Evaluation of postoperative prone position after major abdominal surgery. A randomized clinical trial of 100+100 patients and further add a voice/speech/singing protocol.
- Conditions
- Surgery, Complications, Postoperative, Lung Infection
- Trial name
- EPOS (NCT05630443)
- Testing
- prone position
- Where
- Sweden
- Volunteers
- 200 people
- Sponsor
- Vastra Gotaland Region