Clinical trials: Surgical Positioning
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
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
Orthognathic Surgical Procedures, Patient Specific Implant
Maxillary Positioning in Orthognathic Surgery
Patient that need corrective Jaw Surgery went into Maxillary Positioning in one of two groups either Maxilla Fixed using occlusal waver or PSI
- Trial name
- NCT07671794
- Testing
- Maxillary Orthognathic Surgery
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
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
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
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
Robotic Surgical Procedures
Prevention of Endotracheal Tube Migration by Cuff Palpation During Robotic Surgical Procedure
After intubation, the endotracheal tube was finally fixed after palpating endotracheal cuff at three sites (just below the cricoid cartilage, at suprasternal level and just below suprasternal notch).
- Trial name
- NCT04440787
- Testing
- Three point cuff palpation technique
- Where
- India
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Rajiv Gandhi Cancer Institute & Research Center, India
Craniotomy Surgery, Pediatric Patient Safety
The Effect Of Positive End-Expiratory Pressure on Optic Nerve Sheath Diameter In Pediatric Patients Undergoing Craniotomy in Supine Position
This study evaluated the effect of positive end-expiratory pressure (PEEP) on optic nerve sheath diameter (ONSD), an indicator of intracranial pressure, in pediatric patients undergoing craniotomy in the supine position.
- Conditions
- Craniotomy Surgery, Pediatric Patient Safety, Pediatric Patient, Positive End-expiratory Pressure (PEEP)
- Trial name
- NCT07370779
- Testing
- General Anesthesia, Anesthetic Agents, mechanical ventilation (MV)
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Dr. Lutfi Kirdar Kartal Training and Research Hospital
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
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
Optic Nerve Diameter, Intracranial Pressure Increase
Effect of Optıc Nerve Dıameter ın Tymphanoplasty Surgery Performed ın Lateral Head Posıtıon
Studies exist to determine the effect of laparoscopic surgical procedures on increased intra-abdominal pressure; these studies include optic nerve sheath diameter (ONSD) measurement in various positions such as trendelenburg and…
- Trial name
- ONSD (NCT07407972)
- Testing
- optic nerve diameter
- Where
- Turkey (Türkiye)
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Periodontitis, Periodontal Diseases
Influence of Flap Position Following FibReORS
There is lack of data in literature on keratinized tissue increase after FibReORS in relation to primary flap position. This study has been designed as a split-mouth randomized trial to assess the influence of flap position after…
- Trial name
- NCT05140681
- Testing
- FibReORS with apically positioned flap (apical position), FibReORS with apically positioned flap (crestal position)
- Where
- Italy
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Turin, Italy
Renal Stone
Standard PCNL Vs Endoscopic Combined Intrarenal Surgery (ECIRS) for Complex Nephrolithiasis in Obese Patients
Primary aim: comparing the efficacy of standard PCNL and endoscopic combined intrarenal surgery (ECIRS) in the Galdakao-modified Supine Valdivia (GMSV) position in a single session for the treatment of complex nephrolithiasis in…
- Trial name
- ECIRS (NCT06085794)
- Testing
- Endoscopic combined intrarenal surgery, Percutaneous nephrolithotomy
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Endotracheal Tube Cuff Pressure, Adenotonsillectomy
The Changes of ETT Cuff Pressures After Head and Neck Positions Placed for Adenotonsillectomy and Tonsillectomy in Children
The main purpose of this study was to assess the effect of each of position (neck extension by under-shoulder pillow and Crowe-Davis retractor use) during adenoidectomy and adenotonsillectomy on the intracuff pressure of ETTs in…
- Conditions
- Endotracheal Tube Cuff Pressure, Adenotonsillectomy, Tonsillectomy, Position
- Trial name
- NCT05364281
- Testing
- Intracuff pressure measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Istanbul University
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
Airway Obstruction
Safety and Efficacy of the LMA Supreme When Inserted With Patients in the Prone Position
This study is a non-randomized, observational, non-comparative prospective study to evaluate the safety, efficacy and performance of the LMA Supreme laryngeal mask airway when used according to the device's Instructions for Use.
- Trial name
- LMA (NCT03633942)
- Testing
- LMA Supreme
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Laser Spine Institute
Intraocular Pressure
Steep Trendelenburg Positioning on Intra-Ocular Pressure During Surgery for Endometrial Robotics Versus Laparotomy
The purpose of this study is to assess changes of intra-ocular pressure (IOP) and examine preoperative facts affecting IOP in endometrial cancer patients undergoing robotic hysterectomy compared to laparotomy.
- Trial name
- NCT00852774
- Volunteers
- healthy volunteers welcome
- Sponsor
- Ohio State University Comprehensive Cancer Center
Laparoscopic Gynecological Surgery
Effects of Standard and Modified Z-Trendelenburg Positions on Cerebral Oxygenation and Optic Nerve Sheath Diameter
The purpose of this study is to compare the effects of the standard Trendelenburg position and the modified Z-Trendelenburg position on cerebral oxygenation and optic nerve sheath diameter (ONSD) in patients undergoing…
- Trial name
- MOD-TREND (NCT07632287)
- Testing
- Standard Trendelenburg Position, Modified Z-Trendelenburg Position
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Ankara Etlik City Hospital
Pressure Injury
Preventing Pressure Injuries in Patients Undergoing Lumbar Spine Surgery
Background：Pressure injuries (PI) are one of the common comorbidities in surgery, meaning PI that occurs immediately after surgery or within hours to 3 days after surgery. The incidence of PI in spine surgery is about 5% ~ 66%.
- Trial name
- NCT06015139
- Testing
- cotton roll-coated viscoelastic polymer pads, viscoelastic polymer pads
- Where
- Taiwan
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Central Taiwan University of Science and Technology