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Intracranial Pressure IncreaseNCT05668208

Do Extraperitoneal Laparoscopic Surgeries Increase Intracranial Pressure?

A study testing E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea) in people with Intracranial Pressure Increase, run by Konya City Hospital at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

When the literature is examined, it has been reported in many studies that intracranial pressure increases due to laparoscopic procedures performed in the intraperitoneal area. The mechanism of increased intracranial pressure (ICP) associated with insufflation is most likely due to impaired venous drainage of the… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Intracranial Pressure Increase
What is being tested?
E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteTurkey (Türkiye)
Study dates
6 Jan 2023to 20 Jan 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18-70 years old,
  • ASA (American Society of Anesthesiologists) I-II,
  • patients who will undergo laparoscopic cholecystectomy with the diagnosis of symptomatic cholelithiasis or TEP due to inguinal hernia.

Who cannot join

  • patients who were switched to open surgery,
  • glaucoma, corneal disease, eye surgery,
  • cerebrovascular disease,
  • any neurological disease,
  • chronic kidney disease,
  • liver cirrhosis,
  • patients whose peritoneum was opened during TEP.

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • University of Health Science Konya City Hospital

    Konya

Other trials in Turkey (Türkiye)

About this study

Official title: Comparison of the Effects of Extraperitoneal and Transperitoneal Laparoscopic Surgeries on Intracranial Pressure: A Prospective Clinical Study

When the literature is examined, it has been reported in many studies that intracranial pressure increases due to laparoscopic procedures performed in the intraperitoneal area. The mechanism of increased intracranial pressure (ICP) associated with insufflation is most likely due to impaired venous drainage of the lumbar venous plexus at increased intra-abdominal pressure. Changes in ICP can be monitored by ultrasonographic measurement of optic nerve sheath diameter (ONSD), which is a generally accepted simple, reliable and non-invasive ICP measurement technique. In meta-analyses conducted on this subject, it has been revealed that ICP elevation during laparoscopy can be observed with a significant increase in ONSD in the early (0 30 minutes) and late (30-120 minutes) periods during carbondioxid (CO2) pneumoperitoneum.

However, the effect of laparoscopic procedures performed in the extraperitoneal area on the central nervous system is not clear. There is not found any study in the literature comparing laparoscopic procedures, especially performed extraperitoneally and transperitoneally, and their effects on intracranial pressure.

The aim of the study compare to laparoscopic cholecystectomy performed in the transperitoneal area and (totally extra-peritoneal) TEP inguinal hernia repair performed in the extraperitoneal area in terms of intracranial pressure relationship.

Read the detailed description

A total of 60 patients, including 30 patients who underwent laparoscopic cholecystectomy and 30 patients who underwent TEP inguinal hernia repair between December 2022 and January 2023, were included in the study.

Inclusion criteria: 18-70 years old, ASA (American Society of Anesthesiologists) I-II, patients who will undergo laparoscopic cholecystectomy with the diagnosis of symptomatic cholelithiasis or TEP due to inguinal hernia.

Exclusion criteria: patients who were switched to open surgery, glaucoma, corneal disease, eye surgery, cerebrovascular disease, any neurological disease, chronic kidney disease, liver cirrhosis, and patients whose peritoneum was opened during TEP.

Anesthesia

All patients will undergo general anesthesia and will be given Propofol 2 mg/kg and Fentanyl 2 μg/kg intravenously (IV) for analgesia. Endotracheal intubation will be performed after a 4-minute injection of 0.1 mg/kg Vecuronium. Anesthesia will be maintained with an oxygen-air ratio of 50:50 propofol. For postoperative nausea and vomiting prophylaxis, 4 mg of dexamethasone will be given at induction. Intermittent doses of Fentanyl and Vecuronium will be given from time to time as needed. At the end of the surgery, the neuromuscular paralysis will be reversed with 0.05 mg/kg Neostigmine and 0.02 mg/kg Glycopyrrolate Injection, and the patient will be extubated.

Surgical Method in Patients Undergoing Laparoscopic Cholecystectomy:

With a mini incision made under the umbilicus, the abdomen will be entered with a 10 mm trocar. Pneumoperitoneum will be created with CO2 gas. The intra-abdominal pressure will be set to 14 mmHg. Under the guidance of the laparoscope, 1 10 mm trocar from the subxiphoid region and 2 more 5 mm trocars from the subcostal region will be inserted. The cystic artery and cystic duct will be clipped and cut, exposing the Callot's triangle. The gallbladder will then be separated from the liver bed and removed through the abdomen. The CO2 in the abdomen will be evacuated and the trocars will be removed. The operation will be terminated by closing the fascia defect and the skin.

Surgical Method in Patients with Totally Extra-peritoneal (TEP) Repair:

The outer sheath of the rectus muscle will be seen by passing through the skin and subcutaneous tissue with a mini incision made from the umbilicus. A 10 mm trocar will be placed in the preperitoneal space and CO2 insufflation will be applied. The pressure will be set to 14 mmHg. Two more 5 mm trocars will be placed between the umbilicus and the sympisis pubis under the laparoscope. The preperitoneal inguinal region will be dissected with a laparoscopic dissector and holder. The hernial sac will be released. A 10x15 cm prolene mesh will be fixed to cover the femoral, direct and indirect hernia areas. The trocars will be removed by evacuating the CO2 gas. The skin will be closed and the operation will be terminated.

Results

The primary outcome of the study is the comparison of ONSD measurements between patients who underwent laparoscopic cholecystectomy and TEP repair.

Secondary outcomes are age, gender, ASA score, height, weight, comorbidities, heart rate, blood pressure, oxygen saturation (SpO2), end tidal CO2 (ETCO2) measurements.

ONSD measurement:

ONSD will be performed with transorbital sonography by 2 investigators unaware of the study protocol. Transorbital sonography will be performed using an E-CUBE i7 ultrasound system (mechanical index, 0.2; thermal index, 0) using a linear 6-13 Hz probe (Alpinion Medical Systems, Seoul, Republic of Korea). To prevent eye damage, a sterile occlusion gel will be used and gently probed without applying pressure to the eyelid. Ultrasonographic images of the area will be obtained at the optic nerve level and the ONSD image will be taken 3 mm behind the optic nerve head. The optic nerve sheath will be taken from both eyes at certain times, preoperatively (T0), at the end of insufflation (T1), and at the end of the operation (T2). The average value of the 3 measurements will be recorded as ONSD. Heart rate (HR), blood pressure, SPO2 and EtCO2 will be recorded separately at each time point.

Statistical analysis The primary aim of this study is to compare the effect of laparoscopic surgeries performed in the preperitoneal and intraperitoneal areas on OSD. For clinically reliable results, at least 30 subjects in each group had to detect a difference of 0.3 mm in ONSD measurements. Sample size was calculated based on a pilot study. Multivariate observational analyzes of all data will be performed. Descriptive statistics will be given for hidden variables. Mean and standard deviation will be given for continuous variables, frequency and percentage will be given for categorical variables. Mixed effects models will be created for constant variables. Group, time and group-time interaction will be evaluated. The t-test will be used to measure continuous variables between the 2 groups. When group-time interaction is important, least squares means will be compared. Statistical Analysis SAS (University Edition 9.4) software will be used for data analysis. A P value of <0.05 will be considered significant.

Being tested
E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea)
Keywords
intracranial pressure, laparoscopic, transperitoneally, extraperitoneal
Medical subject headings
Intracranial Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea)Device

    ONSD measurement will be made using the E-CUBE i7 ultrasound system.

Study groups in NCT05668208
Study groupRoleWhat they receive
extraperitoneal surgery group - TEP inguinal hernia repairExperimentalThe external sheath of the rectus muscle was seen by passing through the skin and subcutaneous tissue with a mini incision made from the umbilicus edge. A 10 mm trocar was placed in the preperitoneal area and CO2 insufflation was performed. The pressure was set to 14 mmHg. Two more 5 mm trocars were inserted between the umbilicus and the sympisis pubis under the laparoscope. The preperitoneal inguinal area was dissected with a laparoscopic dissector and grasper. The hernia sac was released. A 10x15 cm prolene mesh was spread and fixed to cover the femoral, direct and indirect hernia areas. The trocars were removed by evacuating the CO2 gas. The skin was closed and the operation was terminated.
Receives: Device: E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea)
transperitoneal surgery group - laparoscopic cholecystectomyActive comparatorWith a mini incision made under the umbilicus, the abdomen was entered with a 10 mm trocar. Pneumoperitoneum was created with CO2 gas. Intra-abdominal pressure was set to 14 mmHg. Under the guidance of the laparoscope, one 10 mm trocar from the subxiphoid area and two more 5 mm trocars from the subcostal area were inserted. The cystic artery and cystic duct were clipped and cut by exposing the Callot triangle. Then the gallbladder was separated from the liver bed and taken out of the abdomen. The CO2 in the abdomen was evacuated and the trocars were removed. The fascia defect and skin were closed and the operation was terminated.
Receives: Device: E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. measurements of optic nerve sheath diameter (ONSD)

    mm

    Measured: during surgery

Secondary outcomes (4)
  1. heart rate value

    /min

    Measured: during surgery

  2. blood pressure

    mmHg

    Measured: during surgery

  3. SPO2 measurements

    Measured: during surgery

  4. ETCO2 measurements

    mmHg

    Measured: during surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Dec 2022
  2. Study start6 Jan 2023
  3. Primary completion15 Jan 2023
  4. Study completion20 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05668208
Sponsor's protocol ID
22222222
Status last verified
Mar 2023
First submitted
11 Dec 2022
Last updated
14 Mar 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Steiner CA, Karaca Z, Moore BJ, Imshaug MC, Pickens G. Surgeries in Hospital-Based Ambulatory Surgery and Hospital Inpatient Settings, 2014. 2017 May [updated 2020 Jul 20]. In: Healthcare Cost and Utilization Project (HCUP) Statistical Briefs [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2006 Feb-. Statistical Brief #223. Available from http://www.ncbi.nlm.nih.gov/books/NBK442035/

    PubMed 28722845
  • Montorfano L, Giambartolomei G, Funes DR, Lo Menzo E, Dip F, White KP, Rosenthal RJ. The Cushing reflex and the vasopressin-mediated hemodynamic response to increased intracranial pressure during acute elevations in intraabdominal pressure. Surgery. 2020 Feb;167(2):478-483. doi: 10.1016/j.surg.2019.10.006. Epub 2019 Dec 6.

    PubMed 31813477
  • Rosenthal RJ, Friedman RL, Chidambaram A, Khan AM, Martz J, Shi Q, Nussbaum M. Effects of hyperventilation and hypoventilation on PaCO2 and intracranial pressure during acute elevations of intraabdominal pressure with CO2 pneumoperitoneum: large animal observations. J Am Coll Surg. 1998 Jul;187(1):32-8. doi: 10.1016/s1072-7515(98)00126-4.

    PubMed 9660022
  • Yashwashi T, Kaman L, Kajal K, Dahiya D, Gupta A, Meena SC, Singh K, Reddy A. Effects of low- and high-pressure carbon dioxide pneumoperitoneum on intracranial pressure during laparoscopic cholecystectomy. Surg Endosc. 2020 Oct;34(10):4369-4373. doi: 10.1007/s00464-019-07207-w. Epub 2019 Oct 15.

    PubMed 31617096
  • Robba C, Cardim D, Donnelly J, Bertuccio A, Bacigaluppi S, Bragazzi N, Cabella B, Liu X, Matta B, Lattuada M, Czosnyka M. Effects of pneumoperitoneum and Trendelenburg position on intracranial pressure assessed using different non-invasive methods. Br J Anaesth. 2016 Dec;117(6):783-791. doi: 10.1093/bja/aew356.

    PubMed 27956677
  • Kalmar AF, Foubert L, Hendrickx JF, Mottrie A, Absalom A, Mortier EP, Struys MM. Influence of steep Trendelenburg position and CO(2) pneumoperitoneum on cardiovascular, cerebrovascular, and respiratory homeostasis during robotic prostatectomy. Br J Anaesth. 2010 Apr;104(4):433-9. doi: 10.1093/bja/aeq018. Epub 2010 Feb 18.

    PubMed 20167583
  • Citerio G, Vascotto E, Villa F, Celotti S, Pesenti A. Induced abdominal compartment syndrome increases intracranial pressure in neurotrauma patients: a prospective study. Crit Care Med. 2001 Jul;29(7):1466-71. doi: 10.1097/00003246-200107000-00027.

    PubMed 11445709
  • Rosenthal RJ, Hiatt JR, Phillips EH, Hewitt W, Demetriou AA, Grode M. Intracranial pressure. Effects of pneumoperitoneum in a large-animal model. Surg Endosc. 1997 Apr;11(4):376-80. doi: 10.1007/s004649900367.

    PubMed 9094281
  • Dip F, Nguyen D, Rosales A, Sasson M, Lo Menzo E, Szomstein S, Rosenthal R. Impact of controlled intraabdominal pressure on the optic nerve sheath diameter during laparoscopic procedures. Surg Endosc. 2016 Jan;30(1):44-9. doi: 10.1007/s00464-015-4159-0. Epub 2015 Apr 22.

    PubMed 25899811

Questions about this trial

What is this clinical trial studying?

A study testing E-CUBE i7 ultrasound system (Alpinion Medical Systems, Seoul, Republic of Korea) in people with Intracranial Pressure Increase, run by Konya City Hospital at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

measurements of optic nerve sheath diameter (ONSD) (time frame: during surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05668208, which also lists 9 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Mar 2023.

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