CompletedNot Applicable

Monitoring Hypertensive Patients's Cerebral Oxygen Saturation

China41 participantsStarted 2014-05

Plain-language summary

The purpose of this study is to determine whether there is a significant decrease in cerebral oxygen saturation in hypertensive patients undergoing major abdominal surgery and their correlation with standard monitoring parameters.

Who can participate

Age range

30 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * patients have hypertension more than 3 year,whether well-controlled or uncontrolled, * scheduled for major abdominal surgery for at least 2 h * under general anesthesia * American Society of Anesthesiologists（ASA）physical status : II \~ III * Age \> 30 Exclusion Criteria: * pre-existing cerebral pathology for example episodes of cerebral ischemia or stroke; * ASA physical status \>IV * hepatic failure * renal failure * preoperative Mini-Mental State Examination (MMSE) score less than 24 * a history of cardiovascular surgery or craniotomy * cardiac failure * respiratory failure

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

decreases in cerebral oxygen saturation (rSO2) during the surgery

Timeframe: every 5 minutes throughout the surgery

Trial details

NCT IDNCT02147275

SponsorHuazhong University of Science and Technology

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2014-11

View on ClinicalTrials.gov More Surgical Complications From General Anesthesia trials

Who can participate

Age range

30 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.