NCT07777159 Carotid Doppler Changes After Passive Leg Raising for Prediction of Post-Induction Hypotension in Gastrointestinal Tumor Surgery
| NCT ID | NCT07777159 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Ankara City Hospital Bilkent |
| Condition | Post-induction Hypotension (PIH) |
| Study Type | OBSERVATIONAL |
| Enrollment | 99 participants |
| Start Date | 2026-09-01 |
| Primary Completion | 2026-12 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.
This trial targets 99 participants in total. It began in 2026-09-01 with a primary completion date of 2026-12.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
This prospective study aims to investigate the role of the passive leg raise maneuver prior to anesthesia induction in predicting post-induction hypotension among elective gastrointestinal tumor surgery patients using carotid artery Doppler parameters.
Eligibility Criteria
Inclusion Criteria: * Adults aged 18 years or older * Patients scheduled for elective gastrointestinal tumor surgery * Surgery planned under general anesthesia * Body mass index (BMI) \<40 kg/m² * Written informed consent provided Exclusion Criteria: * Refusal to participate or inability to obtain written informed consent * Body mass index (BMI) ≥40 kg/m² * Pregnancy * Emergency surgery * Difficult intubation * ASA physical status ≥IV * Pediatric patients (\<18 years) * Inability to perform carotid Doppler measurements * Arrhythmia other than continuous sinus rhythm or uncontrolled cardiac arrhythmia * Severe cardiac dysfunction or left ventricular ejection fraction \<40% * Severe valvular heart disease * Clinically significant autonomic nervous system disorders * Inadequate noninvasive blood pressure monitoring or inability to obtain the required hemodynamic measurements * Active sepsis or systemic inflammatory syndrome * Severe peripheral vascular disease or significant carotid artery stenosis (\>50%) * Severe pulmonary disease or advanced respiratory failure * Implanted cardiac device (pacemaker/ICD) * Baseline mean arterial pressure (MAP) \<65 mmHg * Preoperative systolic blood pressure \>190 mmHg or diastolic blood pressure \>110 mmHg
Contact & Investigator
Frequently Asked Questions
Who can join the NCT07777159 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, studying Post-induction Hypotension (PIH). Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07777159 currently recruiting?
Yes, NCT07777159 is actively recruiting participants. Contact the research team at secilnaz.unlu@gmail.com for enrollment information.
Where is the NCT07777159 trial being conducted?
This trial is being conducted at Ankara, Turkey (Türkiye).
Who is sponsoring the NCT07777159 clinical trial?
NCT07777159 is sponsored by Ankara City Hospital Bilkent. The trial plans to enroll 99 participants.