Clinical trials: Surgical Positioning
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
Suture, Nodule, Solitary Pulmonary
Semi-barbed Suture for Pulmonary Small Nodules Localization
Hookwire and microcoil are currently the most widely used localization instruments. Although their success rate is relatively high in preoperative localization attempts, they may lead to consequences that negatively affect…
- Conditions
- Suture, Nodule, Solitary Pulmonary, Video-Assisted Thoracoscopic Surgery
- Trial name
- NCT04168359
- Testing
- absorbable semi-barbed suture
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Beijing Aerospace General Hospital
Comparison of Different Laryngeal Mask Wearing Methods
Different Ways of Airway Management in Elective Minor Surgeries in Geriatric Patients
different ways of airway management in elective minor surgeries of geriatric patients
- Trial name
- NCT04509960
- Testing
- direct laryngoskopy
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people
- Sponsor
- Ankara Diskapi Training and Research Hospital
Intracranial Hypertension, Brain Edema
Optical Nerve Sheath Changes During Head Down Laparoscopy
Patient undergoing laparoscopic radical prostatectomy in steep trendelenburg position are at risk to develop complication from brain edema.
- Conditions
- Intracranial Hypertension, Brain Edema, Pneumoperitoneum, Surgery, Laparoscopic
- Trial name
- NCT03957837
- Testing
- Optical nerve sheath diameter ultrasound measurement
- Where
- Italy
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- ASST Fatebenefratelli Sacco
Difficult Intubation, Thoracic Surgery
Double Lumen Tube Positioning With Bonfils Fiberoptic Stylet: Prospective Observational Study in 30 Adult Patients
The aim of this prospective observational study is to evaluate the efficacy of Bonfils fiberoptic stylet to perform tracheal intubation with double lumen tube after failure of standard laryngoscopy in 30 adults patients scheduled…
- Trial name
- NCT03982745
- Testing
- bonfils
- Where
- Italy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Università Politecnica delle Marche
Intestinal Malrotation
Prenatal Ultrasound Screening of Intestinal Malrotation With a Higher Risk of Volvulus
The aim of this study was to assess the value of an unusual relative position of the superior mesenteric artery (SMA) and vein (SMV) to screen intestinal malrotation with a higher risk of volvulus.
- Trial name
- VOLMES (NCT03356314)
- Testing
- MRI between 30-35 GA, Pediatric surgeon meeting, Postnatal abdominal ultrasound, barium enema and upper gastrointestinal
- Where
- France
- Volunteers
- 9,000 people
- Sponsor
- University Hospital, Montpellier
Anorectal Surgery Haemodynamic Changes
Haemodynamic Effects During Anorectal Surgery: a Comparison of the Jack -Knife and Lithotomy Position
Background and Goal of Study: Minimal dose of spinal hyperbaric bupivacaine is commonly performed for adult anorectal surgery. This kind of anaesthesia can cause sinus bradycardia and hypotension wich reason is body position…
- Trial name
- NCT02115178
- Testing
- Lithotomy or Prone position
- Where
- Lithuania
- Volunteers
- 155 people
- Sponsor
- Lithuanian University of Health Sciences
Esophageal Cancer, Thoracic Diseases
Generation of a Surgical Field in the Left Lateral Decubitus Position
The generation of a good surgical field at the mid-lower mediastinum during thoracoscopic esophagectomy in the left lateral decubitus position is often complicated.
- Trial name
- NCT04683601
- Testing
- Thoracoscopic esophagectomy in left decubitus
- Volunteers
- 154 people
- Sponsor
- Shizuoka Cancer Center
Atelectasis, Mechanical Ventilation
Effects of Periodic Recruitment Maneuvers on Atelectasis and Respiratory Mechanics During Elective Spine Surgery Assessed by Lung Ultrasonography
During general anesthesia, particularly in patients undergoing spine surgery in the prone (face-down) position, increased intrathoracic and abdominal pressure may reduce lung compliance and promote the development of atelectasis…
- Conditions
- Atelectasis, Mechanical Ventilation, General Anesthesia, Prone Position
- Trial name
- NCT07325812
- Testing
- Alveolar Recruitment Maneuver
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization
Urinary Bladder Neoplasms, Prostatic Neoplasms
Effect of PEEP on Arterial Oxygen Partial Pressure in Elderly Patients With Lithotomy Position Using LMA Supreme™
The purpose of the present study is to compare the effect of PEEP on arterial oxygen partial pressure in elderly patients undergoing urologic surgery using LMA supreme™ in a lithotomy position.
- Trial name
- NCT03390127
- Testing
- PEEP
- Where
- South Korea
- Volunteers
- 68 people
- Sponsor
- Asan Medical Center
Thyroid Cancer, Endoscopy
Comparing the Establishment of Operation Space Between High Position and Low Position in Endoscopic Thyroid Surgery
Patients in our department endoscopic thyroidectomy were randomly divided into high position and low position established operating space group established operating space group.
- Trial name
- NCT03577951
- Testing
- high position space group, low position space group
- Where
- China
- Volunteers
- 48 people
- Sponsor
- Fujian Medical University
Jugular Venous Flow
Jugular Venous Flow Neurosurgical Patients
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
- NCT02002507
- Testing
- comparison of different neurosurgical position
- Where
- Canada
- Sponsor
- University Health Network, Toronto
Uterine Myoma, Ovarian Cyst
The Effect of Different I:E Ratio on Gas Exchange of Patients Undergoing Gynecologic Laparoscopic Surgery With Trendelenburg Position
In patients undergoing gynecologic laparoscopic surgery with trendelenburg position, the disturbance of pulmonary gas exchange frequently occurs due to high intra-abdominal pressure.
- Conditions
- Uterine Myoma, Ovarian Cyst, Laparoscopic Gynecologic Surgery
- Trial name
- NCT01379313
- Testing
- conventional I:E ratio, 1:1 ratio, 2:1 group
- Where
- South Korea
- Volunteers
- 100 people
- Sponsor
- Samsung Medical Center
Pain During Spinal Positioning
Role of Pericapsular Nerve Block Using Dexmedetomidine and Bupivacaine in Improving the Outcome of Patients Undergoing Hip Surgery Under Spinal Anesthesia
the investigators will compare the effectiveness and safety of the pericapsular nerve block (PENG) using dexmedetomidine and bupivacaine before giving spinal anesthesia in improving the quality and success rate of spinal…
- Trial name
- NCT07149168
- Testing
- Dexmedetomidin, Bupivacain
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Ain Shams University
Non-Invasive Blood Pressure Monitoring in Trendelenburg Position
How Accurate Is Non-Invasive Blood Pressure Monitoring During Trendelenburg Laparoscopic Surgery?
This study will test how accurate a blood pressure cuff is during certain types of surgery. During some abdominal surgeries done with small tools and a camera (called laparoscopic surgery), doctors place patients in a head-down…
- Trial name
- NCT07107425
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Koç University
Fibrolipoma of Filum Terminale, Lipomyelomeningocele
Effect of Acetazolamide & Position in CSF Leakage and Collection and Wound Dehiscence
Purpose of study : to determine the preventive effect of acetazolamide administration, prone positioning, and the combination of both following the neurosurgical interventions in lumbosacral region for cerebrospinal fluid (CSF)…
- Conditions
- Fibrolipoma of Filum Terminale, Lipomyelomeningocele, Split Cord Malformation, Dermal Sinus
- Trial name
- NCT01867268
- Testing
- Acetazolamide, prone positioning, Acetazolamide+ prone positioning
- Where
- Iran
- Volunteers
- 144 people
- Sponsor
- Tehran University of Medical Sciences
Oropharyngeal Leak Pressure
The Effects of GMA-TULIP, I-gel, and BlockBuster Laryngeal Mask in Surgeries With Lateral Position Under General Anesthesia
To compare the efficacy and safety of traditional inflatable laryngeal mask, i-gel non-inflatable laryngeal mask and GMA-TULIP non-inflatable laryngeal mask in surgeries with lateral position under general anesthesia, so that…
- Trial name
- NCT06782841
- Testing
- GMA-TULIP Laryngeal Mask, i-gel Laryngeal Mask, BlockBuster Laryngeal Mask
- Where
- China
- Volunteers
- 102 people
- Sponsor
- The Second Affiliated Hospital of Chongqing Medical University
Atelectasis, Perioperative Oxygenation
Individualized vs Standard PEEP and Oxygen Reserve Index in Laparoscopic Hernia Surgery
During laparoscopic surgery under general anesthesia, lung function can be affected by increased abdominal pressure and patient positioning.
- Conditions
- Atelectasis, Perioperative Oxygenation, Laparoscopic Inguinal Hernia Repair, Mechanical Ventilation
- Trial name
- NCT07775573
- Testing
- Standard PEEP Ventilation, Individualized PEEP Ventilation
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Neuropathy;Peripheral, Limb Ischemia
Feasibility and Clinical Utility of Paired Non-Invasive Hemodynamic and Tissue Oximetry Monitoring to Detect Limb Ischemia in Lithotomy-Positioned Surgeries
The LIMB Study is a prospective, observational pilot study evaluating the feasibility of combined non-invasive hemodynamic and lower-limb tissue oximetry monitoring during prolonged minimally invasive pelvic surgeries performed…
- Trial name
- LIMB (NCT07387653)
- Testing
- Lower-Extremity Perfusion Monitoring
- Where
- 2 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center, Houston
Infratentorial Neoplasms
Effects of the Prone and the Sitting Positions on the Brain Oxygenation in Posterior Fossa Surgery
The sitting or prone positions are used for posterior fossa surgery. Although the sitting position may cause hemodynamic instability, venous air embolism, it also provides optimum access to midline lesions, decreases intracranial…
- Trial name
- NCT02933749
- Testing
- SctO2, BIS
- Where
- Turkey (Türkiye)
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Istanbul University