Clinical trials: Surgical Positioning
Postoperative Atelectasis
Supine vs Prone Position and Atelectasis Assessed by Lung Ultrasound
Atelectasis frequently develops during and after general anesthesia due to factors such as anesthesia-induced diaphragmatic dysfunction, reduced functional residual capacity, altered ventilation-perfusion matching, and surgical…
- Trial name
- LUS-ATELEC (NCT07320092)
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Istanbul University - Cerrahpasa
Osteoarthritis, Hip Dislocation
Supine Sleeping After Total Hip Replacement
Aim of the current study is to test the non-inferiority hypothesis of differences in early hip dislocation between a group of patients who will be restricted to sleep in supine position and a group without restricted sleeping…
- Trial name
- NCT02107248
- Testing
- Sleep position: no restrictions, Sleep position: supine
- Where
- Netherlands
- Volunteers
- 456 people
- Sponsor
- Orthopedisch Centrum Oost Nederland
Cataracts
Intra-operative Measurements to Predict the Position of the Intraocular Lens Post-operatively
Refractive outcome after cataract surgery mainly depends on the prediction of the intraocular lens that is implanted in the eye during surgery.
- Trial name
- NCT01867541
- Volunteers
- 70 people
- Sponsor
- Prim. Prof. Dr. Oliver Findl, MBA
Hemodynamic Instability
Effect of Remimazolam and Propofol on Hemodynamic Stability in Prone Position
Most of the major spinal surgeries are performed in the supine position, which causes a decrease in stroke volume and cardiac index, which leads to the occurrence of hypotension during surgery.
- Trial name
- NCT05644483
- Testing
- Remimazolam, Propofol
- Where
- South Korea
- Volunteers
- 94 people
- Sponsor
- Asan Medical Center
Macular Holes, Visual Acuity Gain
Impact of C3F8 or SF6 Use and Length of Face-down Positioning (7 vs 14 Days Respectively) in Macular Hole Surgery
The primary purpose of the study was to compare the macular hole closure and visual acuity gain following vitrectomy using SF6 gas tamponade with 7 days of face-down positioning versus C3F8 gas tamponade with 14 days of face-down…
- Conditions
- Macular Holes, Visual Acuity Gain, Cataract, Complications
- Trial name
- NCT02073266
- Testing
- Macular hole surgery using a 25 G pars plana vitrectomy, ILM peeling, fluid-air exchange followed by air-gas exchange with SF6 or C3F8.
- Where
- Canada
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- CHU de Quebec-Universite Laval
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
Post-operative Complications, Operative Surfaces
Patient Positioning for Hand, Wrist, and Elbow Surgery: Stretcher Versus Operating Room Table
The purpose of this study is to determine if there is any difference with regard to complication rates for performing surgery on an operating room (OR) table vs performing surgery on a stretcher with a hand table.
- Trial name
- NCT07063784
- Where
- United States
- Volunteers
- 120 people
- Sponsor
- Brett Lewellyn
Post Operative Pain, Bradycardia
Comparison of EOSP Between Usg Guided S-FICB vs USG Guided PENG Block in Pts Undergoing Femur Fracture Surgery
To compare the immediate and postoperative analgesic efficacy of S-FICB and PENG block will be the objective. The use of ultrasonography in anesthesia has helped the anesthetist to see the nerve, needle and the distribution of…
- Conditions
- Post Operative Pain, Bradycardia, Hypotension, Femur Fracture
- Trial name
- NCT06568770
- Testing
- USG GUIDED SUPRA-INGUINAL FASCIA ILIACA BLOCK, PERICAPSULAR NERVE BLOCK
- Where
- Pakistan
- Volunteers
- 70 people
- Sponsor
- Sahiwal medical college sahiwal
Spinal Diseases, Local Anesthesia
The Effect of Dexmedetomidine Analgesia and Sedation in Minimally Invasive Spine Surgery Under Local Anesthesia
Evaluate safety and efficacy of dexmedetomidine in minimally invasive spine surgery under local anesthesia sedation.Explore the appropriate concentration of dexmedetomidine, whether or not can reduce the amount of local…
- Trial name
- NCT02535273
- Testing
- Dexmedetomidine, Lidocaine, Low-dose Dexmedetomidine
- Volunteers
- 212 people
- Sponsor
- Tang-Du Hospital
Atelectases, Postoperative Pulmonary, Prone Position
ORI-Guided FiO₂ Titration in Prone Spine Surgery: Impact on Postoperative Atelectasis Assessed by Lung Ultrasound
Atelectasis is a frequent pulmonary complication after general anesthesia, often triggered by preoxygenation and intraoperative hyperoxia.
- Conditions
- Atelectases, Postoperative Pulmonary, Prone Position, Spine Surgery, Lung Ultrasound
- Trial name
- NCT07375173
- Testing
- Titrated Oxygen, Fixed oxygen
- Where
- Turkey (Türkiye)
- Volunteers
- 76 people
- Sponsor
- Ankara Etlik City Hospital
Physical Activity, Surgery
Study Investigating Role of Unalike Patient Positioning on PROMIS Scores
The primary objective is to assess the impact of patient positioning using the candy cane stirrups as compared to boot stirrups on physical functioning outcomes at 6 weeks post-op
- Conditions
- Physical Activity, Surgery, Vaginal Hysterectomy, Vaginal Surgery
- Trial name
- STIRUPPS (NCT03446950)
- Testing
- Vaginal Surgery
- Where
- United States
- Volunteers
- 155 people, healthy volunteers welcome
- Sponsor
- University of Louisville
Orthognathic Surgical Procedures
Effect of Proximal Segment Positioning on Condylar Remodeling
This study aims to evaluate postoperative condylar remodeling in patients undergoing bimaxillary orthognathic surgery by comparing two different proximal segment positioning techniques used during mandibular osteotomy.
- Trial name
- NCT07758725
- Testing
- Proximal Segment Rotation, Inferior Border Osteotomy Without Proximal Segment Rotation
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Stone, Kidney
Evaluation of Retrograde Intra Renal Surgery in the T-tilted Position
To evaluate the effect of the T-tilted position on the stone-free rate compared to the standard lithotomy position in retrograde intrarenal surgeries.
- Trial name
- RIRS (NCT06860113)
- Testing
- T-tilting of the patient during surgery, standard lithotomy position
- Where
- Egypt
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Cataract
Pseudophakic Anterior Chamber Depth Measurement in Second Eye Refinement Cataract Surgery
To study the effective lens position concept in second eye refinement (SER) cataract surgery, by relating inter-ocular symmetry of pseudophakic anterior chamber depth (pACD) measured in Pentacam and SER refractive outcomes.
- Trial name
- NCT02423668
- Testing
- 50% Partial adjustment, No adjustment, Full adjustment
- Volunteers
- 88 people
- Sponsor
- Centro Hospitalar do Baixo Vouga
Colon Disease, Gynecologic Disease
Optic Nerve Sheath Diameter in Laparoscopic Surgeries During Trendelenburg Position
It is difficult to measure the several levels of intracranial pressure during abdominal surgery, and direct monitoring with intracranial devices is often impossible.
- Trial name
- NCT04428229
- Testing
- Optic nerve sheath diameter
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Medipol University
Anesthesia, Anorectal Surgery
Spinal Anesthesia Versus General Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone Position
Anorectal surgeries are of the commonest elective surgeries that are performed worldwide under different types of anaesthesia. The aim of this prospective interventional study was to compare the use of general anaesthesia (GA)…
- Trial name
- NCT04214977
- Testing
- Spinal Anesthesia for Anorectal Surgeries in Prone Position, General Anesthesia Using Laryngeal Mask Airway for Anorectal Surgeries in Prone Position
- Where
- Jordan
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- University of Jordan
Vnotes, Respiratory Mechanics
Effects of Trendelenburg Position and Pneumoperitoneum on Mechanical Power and Respiratory Mechanics During V-NOTES Surgery
The purpose of this observational study is to evaluate the effects of Trendelenburg positioning and pneumoperitoneum on mechanical power and respiratory mechanics in adult women undergoing vaginal natural orifice transluminal…
- Trial name
- NCT07885111
- Volunteers
- 14 people
- Sponsor
- Burcu Ayvazoğlu
Cataract Surgeries
Comparison of the Concordance Between Digital Marking and Manual Marking for Toric Intraocular Lens Positioning
This cross-sectional comparative study evaluated patients from a single cataract center. In each eye, manual horizontal meridian axis line was marked on the cornea using the manual peripheral corneal marking technique (Horizontal…
- Trial name
- NCT07710963
- Testing
- Verion Digital Marking
- Volunteers
- 100 people
- Sponsor
- Thammasat University
Supraglottic Airway Devices Position
Fiberoptic Bronchoscopy on Supraglottic Airway Devices Position
A comparison of SaCo VLMTM video laryngeal mask airway with the I-gel supraglottic airway during airway management in patients undergoing elective surgery.
- Trial name
- NCT06775184
- Testing
- a native video image system, Fiberoptic bronchoscope
- Volunteers
- 80 people
- Sponsor
- Kaohsiung Medical University Chung-Ho Memorial Hospital
Periodontal Pocket, Impacted Third Molar Tooth
Evaluation of Two Different Grafting Techniques After Mandibular Impacted Third Molar Surgery
This study evaluates the effectiveness of using Mineralized Plasmatic Matrix and β-tricalcium phosphate that placed to extraction socket as a graft material in terms of periodontal damage occurred in the distal aspect of the…
- Conditions
- Periodontal Pocket, Impacted Third Molar Tooth, Impacted Teeth With Abnormal Position
- Trial name
- NCT04366635
- Testing
- Impacted third molar surgery, Application of mineralised plasmatic matrix, Application of β-tricalcium phosphate
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Konya Necmettin Erbakan Üniversitesi