Hemodynamic Effects of Bone Cement During Hip Arthroplasty Under Neuraxial Anesthesia
HIP-PRAM
Evaluation of Perioperative Hemodynamic Changes and Bone Cement Implantation Syndrome Using Pressure Recording Analytical Method in Patients Undergoing Hip Arthroplasty Under Neuraxial Anesthesia
2 other identifiers
observational
40
1 country
1
Brief Summary
Hip arthroplasty is a commonly performed surgical procedure in elderly patients, particularly following proximal femoral fractures. During these operations, significant and sudden changes in blood pressure and heart function may occur, especially during bone cement implantation. These hemodynamic alterations may lead to decreased organ perfusion and potential cardiac or renal complications. Traditional non-invasive monitoring methods may not adequately detect rapid perioperative cardiovascular changes. Advanced arterial waveform analysis allows continuous assessment of cardiac output and other hemodynamic parameters in real time. This observational study aims to evaluate perioperative hemodynamic changes in patients undergoing hip arthroplasty under neuraxial anesthesia, comparing cemented and non-cemented procedures. Hemodynamic parameters will be assessed using a pressure recording analytical method through invasive arterial monitoring. In addition, the study investigates the association between intraoperative hemodynamic changes and early postoperative cardiac and renal biomarkers. The findings may contribute to improved perioperative monitoring strategies and safer anesthetic management in high-risk orthopedic surgery patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Mar 2026
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
August 15, 2026
CompletedFirst Submitted
Initial submission to the registry
September 3, 2026
CompletedFirst Posted
Study publicly available on registry
September 14, 2026
CompletedSeptember 14, 2026
September 1, 2026
5 months
September 3, 2026
September 11, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Perioperative Change in Cardiac Output Assessed by Arterial Waveform Analysis
Cardiac output (L/min) is assessed using arterial waveform analysis derived from invasive arterial blood pressure monitoring. Cardiac output values are recorded at predefined perioperative time points: immediately before neuraxial anesthesia (baseline), after neuraxial anesthesia, at surgical incision, immediately before cement or prosthesis implantation, immediately after cement or prosthesis implantation, at the first hypotensive episode if present, and at the end of surgery. The primary outcome is the change in cardiac output across these predefined perioperative time points. Changes over time will be compared between the cemented and non-cemented hip arthroplasty groups.
From immediately before neuraxial anesthesia through the end of surgery, assessed at predefined perioperative time points, up to 4 hours per participant.
Secondary Outcomes (10)
Incidence of Intraoperative Hypotension After Cement/Prosthesis Implantation
From cement/prosthesis implantation until 5 minutes after implantation (intraoperative)
Perioperative Mean Arterial Pressure Changes
From baseline measurement to end of surgery (intraoperative)
Perioperative Stroke Volume Changes
From baseline measurement to end of surgery (intraoperative)
Cardiac Power Output Changes During Surgery
From baseline measurement to end of surgery (intraoperative)
Cardiac Power Index Changes During Surgery
From baseline measurement to end of surgery (intraoperative)
- +5 more secondary outcomes
Study Arms (2)
Cemented Hip Arthroplasty Group
Patients undergoing hip arthroplasty under neuraxial anesthesia with the use of bone cement. Hemodynamic parameters are recorded perioperatively using arterial waveform analysis as part of routine clinical monitoring.
Non-Cemented Hip Arthroplasty Group
Patients undergoing hip arthroplasty under neuraxial anesthesia without the use of bone cement. Perioperative hemodynamic parameters are recorded using arterial waveform analysis during routine clinical care.
Interventions
This is an observational study. No experimental intervention is assigned. All surgical and anesthetic procedures, including arterial monitoring, are performed as part of standard clinical care.
Eligibility Criteria
The study population consists of adult patients aged 50 to 90 years who are scheduled to undergo hip arthroplasty under neuraxial anesthesia at a tertiary university hospital. Eligible patients have ASA physical status I-III, a body mass index below 30 kg/m², and planned invasive arterial blood pressure monitoring as part of routine perioperative care. Patients are allocated into cemented and non-cemented hip arthroplasty groups according to standard surgical indications. All participants provide written informed consent prior to enrollment.
You may qualify if:
- Age between 50 and 90 years
- Scheduled for hip arthroplasty under neuraxial anesthesia
- ASA physical status I-III
- Body mass index (BMI) \<30 kg/m²
- Planned invasive arterial blood pressure monitoring
- Expected surgical duration \>2 hours
- Ability to provide written informed consent
You may not qualify if:
- Refusal to participate or inability to provide informed consent
- Planned surgery without invasive arterial blood pressure monitoring
- Mean arterial pressure \<65 mmHg at initial monitoring
- Use of vasopressors or inotropes before anesthesia
- Fluid responsiveness detected by Trendelenburg maneuver
- Intraoperative blood loss exceeding tolerable limits
- Additional epidural drug administration during cement implantation
- Estimated glomerular filtration rate \<30 mL/min/1.73 m²
- Ongoing renal replacement therapy
- Preoperative intensive care unit requirement
- NYHA class III-IV heart failure or left ventricular ejection fraction \<40%
- Severe valvular heart disease
- Persistent cardiac arrhythmia
- Coagulation disorders
- Sensory block level below T8 after initial neuraxial anesthesia
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Ataturk University
Erzurum, 25240, Turkey (Türkiye)
Related Publications (3)
Romagnoli S, Franchi F, Ricci Z, Scolletta S, Payen D. The Pressure Recording Analytical Method (PRAM): Technical Concepts and Literature Review. J Cardiothorac Vasc Anesth. 2017 Aug;31(4):1460-1470. doi: 10.1053/j.jvca.2016.09.004. Epub 2016 Sep 14. No abstract available.
PMID: 28012725BACKGROUNDHines CB. Understanding Bone Cement Implantation Syndrome. AANA J. 2018 Dec;86(6):433-441.
PMID: 31584416BACKGROUNDDonaldson AJ, Thomson HE, Harper NJ, Kenny NW. Bone cement implantation syndrome. Br J Anaesth. 2009 Jan;102(1):12-22. doi: 10.1093/bja/aen328.
PMID: 19059919BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Muhammed Enes Aydın, Principal Investigator
Ataturk University Department of Anesthesiology and Reanimation
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
September 3, 2026
First Posted
September 14, 2026
Study Start
March 1, 2026
Primary Completion
August 1, 2026
Study Completion
August 15, 2026
Last Updated
September 14, 2026
Record last verified: 2026-09
Data Sharing
- IPD Sharing
- Will not share
Individual participant data will not be shared due to institutional and ethical restrictions. The study is a single-center observational study with a limited sample size, and informed consent did not include provisions for data sharing. All data are analyzed and reported in aggregate form to ensure participant confidentiality.