Clinical trials: Surgical Positioning
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
Intraocular Pressure
IOP Changes With Different Anesthetic Agents During Laparoscopic Colorectal Surgery
This study is aimed to evaluate how intraocular pressure (IOP) is changed depending on surgical position (Trendelenburg versus reverse Trendelenburg) in the same patient and to compare the effects of different anesthetics on IOP…
- Trial name
- NCT03016234
- Testing
- Desflurane, Propofol
- Where
- South Korea
- Volunteers
- 50 people
- Sponsor
- Saint Vincent's Hospital, Korea
Prostate Cancer, Robotic Surgery
Effect of Dexmedetomidine on Heart-rate Corrected QT(QTc) Interval Prolongation During Robotic-assisted Laparoscopic Radical Prostatectomy -Randomized Blind Clinical Trial-
Sympathetic activity could be increased during robot-assisted laparoscopic radical prostatectomy, which is performed in a steep trendelenburg position under CO2 pneumoperitoneum.
- Trial name
- NCT02536014
- Testing
- Dexmedetomidine, Saline
- Where
- South Korea
- Volunteers
- 50 people
- Sponsor
- Yonsei University
Coronary Artery Disease
Impact of Three Body Positioning Strategies in the Drainage Fluids After Coronary Artery Bypass Surgery
To investigate different strategies of body positioning associated to early corporal mobilization and verify the impact int the time and quantification of thoracic and mediastinal drainage, pulmonary complications and time of…
- Trial name
- positioning (NCT02525289)
- Testing
- Bed Rotation Group, Orthostatic Group
- Volunteers
- 101 people
- Sponsor
- University of Sao Paulo General Hospital
Alveolar Bone Loss, Periodontal Pocket
Regenerative Gel (Emdogain®) for Healing After Wisdom Tooth Extraction
This study investigates whether the intraoperative application of a specialized regenerative gel (Emdogain®) can improve the periodontal health of the mandibular second molar by preventing or reducing the formation of tissue…
- Conditions
- Alveolar Bone Loss, Periodontal Pocket, Impacted Tooth With Abnormal Positioning
- Trial name
- NCT07718932
- Testing
- Enamel Matrix Derivative (Emdogain®)
- Where
- 2 sites in Greece
- Volunteers
- 70 people
- Sponsor
- Aristotle University Of Thessaloniki
Pulmonary Complication
Effect of Prone Position Training on Pulmonary Complications in Patients Undergoing Laparoscopic Colorectal Surgery
Colorectal cancer is a common digestive tract tumor in China. At present, laparoscopic surgery has become the classic operation of colorectal cancer surgery compared with the traditional open abdominal surgery.
- Trial name
- NCT06001411
- Testing
- Prone Position Training, control group
- Where
- China
- Volunteers
- 140 people
- Sponsor
- Min Su
Postoperative Hypoxemia
Postoperative SpO₂/FiO₂ Ratio and Analgesic Methods in Laparoscopic Surgery
This prospective observational study aims to evaluate the association between postoperative oxygenation, assessed by the SpO₂/FiO₂ ratio, and body mass index (BMI), STOP-BANG score, and postoperative analgesic methods in patients…
- Trial name
- NCT07401589
- Testing
- Standard of Care
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Istinye University
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
Disorder of Shoulder, Anesthesia
Effect of Phenylephrine During Shoulder Arthroscopic Surgery
The purpose of this study is to determine whether phenylephrine infusion are effective in the prevention of hypotension after changing position to beach chair position during general anesthesia for shoulder arthroscopic surgery.
- Trial name
- NCT02585570
- Testing
- Phenylephrine
- Where
- South Korea
- Volunteers
- 66 people
- Sponsor
- Inje University
Pulmonary Nodules
A Randomized Controlled Trial of 3D Airway Reconstruction for Precise Double-Lumen Bronchial Intubation
This is a very safe and beneficial clinical study. We hope to obtain near-real airway anatomical parameters of patients before surgery through airway three-dimensional reconstruction technology, to assist anesthesiologists in…
- Trial name
- NCT07719959
- Testing
- 3D Airway Reconstruction-Guided Double-Lumen Tube Intubation, Gender and Height-Based Double-Lumen Tube Selection
- Where
- China
- Volunteers
- 174 people
- Sponsor
- Peking Union Medical College Hospital
Oxygen, Oxygen Saturation
Oxygenation in Posterior Stabilization Surgery
This study aims to evaluate the effects of prone positioning on oxygenation, ventilation, and hemodynamic parameters in patients undergoing posterior stabilization surgery under general anesthesia.
- Trial name
- NCT07487324
- Testing
- blood gase
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people
- Sponsor
- Sakarya University
Pulmonary Atelectasis, Postoperative, Postoperative Pulmonary Complications
Ventilation Mode and Atelectasis After Prone-Position Surgery: A Lung Ultrasound Study
This prospective single-centre observational study compared two intraoperative mechanical ventilation modes, volume-controlled ventilation (VCV) and VCV with AutoFlow/AF, in adults undergoing elective surgery in the prone…
- Trial name
- VENTI-PRONE (NCT07680881)
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people
- Sponsor
- Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization
Dislocated Intraocular Lens
Modification of Scleral Suture Fixation of Dislocated IOL
A prospective randomized study on patients with late in the bag intraocular lens (IOL) dislocation after cataract surgery. Two surgical techniques of suturing of IOL to the sclera will be compared in the study.
- Trial name
- NCT04150263
- Testing
- Intraocular lens (IOL) ab externo scleral suture fixation, Modified IOL ab externo scleral suture fixation
- Where
- Sweden
- Volunteers
- 117 people
- Sponsor
- St. Erik Eye Hospital
Hypoxia
The Effect of Prolonged Inspiratory Time on Pulmonary Mechanics in Obese Patients
The area of aesthesia-induced atelectasis is much larger in the obese compared with the non-obese, but there may also be more airway closure and impaired matching of ventilation and lung blood flow.
- Trial name
- NCT02961920
- Testing
- IE ratio 1:1, IE ratio 1:2
- Where
- South Korea
- Volunteers
- 50 people
- Sponsor
- Gachon University Gil Medical Center
Thyroidectomy, Colon Surgery
The Effect of Different Bed-Head Angles on the Haemodynamic Parameters of Intensive Care Patients Lying in the Supine Position
Aim: The aim of this study was to examine the effect of different bed-head angles given to patients lying in the supine position in an intensive care unit on the haemodynamic parameters of central venous pressure, systolic and…
- Conditions
- Thyroidectomy, Colon Surgery, Cholecystectomy, Inguinal Hernia
- Trial name
- NCT06020768
- Testing
- the bed-head was raised to an angle of 0, 20, 30 and 45 degrees
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people
- Sponsor
- Uludag University
Thoracic Surgery
Initial Positioning of Left Sided Double Lumen Endobronchial Tubes Using Peak Inspiratory Pressures Difference Between Two Lungs
The purpose of this study is to investigate a performance of initial positioning of left sided double lumen endobronchial tubes using peak inspiratory pressures difference between two lungs.
- Trial name
- NCT01533012
- Testing
- Pressure difference
- Where
- South Korea
- Volunteers
- 104 people
- Sponsor
- Yonsei University
Spine Surgery, Vision Impairment
Intraocular Pressure During Prone Spinal Surgery
Postoperative visual loss resulting from surgical procedures not performed on the eye is a devastating outcome for the patient and poorly understood by the medical community. It is potentially a preventable complication.
- Trial name
- NCT00176722
- Testing
- table tilt
- Where
- 2 sites in United States
- Volunteers
- 7 people
- Sponsor
- University of Medicine and Dentistry of New Jersey
Intracranial Pressure, Circulation System
The Effect of Arterial Carbon Dioxide Levels on Cerebral Blood Flow and Cerebral Autoregulation in the Steep Trendelenburg Position During Robot-assisted Prostatectomy, and Its Effect on Postoperative Cognition
Patients scheduled for robot-assisted prostatectomy will be randomized to either high or low concentrations of carbon dioxide in the blood.
- Conditions
- Intracranial Pressure, Circulation System, Cerebral Perfusion Pressure, Cognitive Function
- Trial name
- TILTDOWN-3 (NCT06865027)
- Testing
- Ventilation strategy
- Where
- Norway
- Volunteers
- 46 people
- Sponsor
- University Hospital, Akershus
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
Cerebral Perfusion, Cerebral Oxygenation
Evaluation of Cerebral Oxygenation During Orthopedic Surgeries Performed in the Beach Chair Position Under General Anesthesia
The goal of this observational study is to determine the correlation between cerebral oxygenation values measured by near-infrared spectroscopy (NIRS) and other routine monitoring parameters in patients placed in the semi-sitting…
- Conditions
- Cerebral Perfusion, Cerebral Oxygenation, Hemodynamic Monitoring, Semi-sitting Position
- Trial name
- NCT07270341
- Testing
- Near-Infrared Spectroscopy (NIRS) Monitoring
- Where
- Turkey (Türkiye)
- Volunteers
- 59 people
- Sponsor
- Akdeniz University