LipodystrophyNCT05930106
Carotid Doppler Peak Velocity Variation in Liposuction Fluid Management
A study testing Intraoperative fluid ratio and Carotid Artery Doppler Peak Velocity Variation in people with Lipodystrophy, run by TJ Plast Advanced Center for Plastic Surgery at 1 site in Mexico.
Trial summary
This study aims to compare the hemodynamic parameters, postoperative plethysmography variability index, the total amount of postoperative intravenous fluid administration needed, and the urine output of two methods of fluid resuscitation during liposuction surgery. Read more about this study
- Who is it for?
- Ages 21 to 60 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Lipodystrophy
- What is being tested?
- Intraoperative fluid ratio and Carotid Artery Doppler Peak Velocity Variation
- Type of treatment
- Injection or infusion, Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteMexico
- Study dates
- 20 Nov 2023to 20 Dec 2024
- 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 21 to 60 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Female patients between 21 and 60 years old
- Liposuction with or without abdominoplasty
- American Society of Anesthesiologists Ӏ \& ӀӀ.
Who cannot join
- History of previous liposuction surgery
- American Society of Anesthesiologist III
- Coagulation disorders
- Cardiopulmonary disorders
Trial locations and contacts
1 site in 1 country.
Mexico1 site
TJ Plast out patient, S.A. de C.V.
Tijuana, Estado de Baja California, 9288
About this study
Official title: Respiratory Variation of Carotid Doppler Peak Velocity in Liposuction Fluid Management
This study aims to compare the hemodynamic parameters, postoperative plethysmography variability index, the total amount of postoperative intravenous fluid administration needed, and the urine output of two methods of fluid resuscitation during liposuction surgery. One method involves using carotid artery Doppler peak velocity variation, while the other is the conventional fluid ratio.
Read the detailed description
The research will involve 50 female participants who have undergone liposuction and will be divided into two groups.
Group 1: Fluid administration will be determined by the intraoperative fluid ratio. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4.
Group 2: Participants will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA.
During the examination, a single cardiothoracic anesthesiologist will use a 13-6 MHz linear probe (Fujifilm Sonosite M-Turbo) to measure the peak velocity of the carotid artery on the left side. The sample volume will be positioned at the center of the lumen, 2 cm from the bulb, and a pulsed wave Doppler examination will be conducted.
To measure the ΔVPeak-CA, the investigators will calculate the maximum and minimum values during one respiratory cycle. This will be done by using the formula: 100x (maximum peak velocity - minimum peak velocity) / [(maximum peak velocity + minimum peak velocity)/2].
Surgical technique
The superwet tumescence technique will be the only method utilized for infiltration during the procedure. All participants will undergo power-assisted liposuction, and a single surgeon will operate. The wetting solution will contain 1000cc of normal saline and 2mg of epinephrine in a 1:500,000 ratio. The total Infiltration volume will depend on the patient.
The total amount of aspiration will depend on the patient and surgery plan and can vary between 2500 to 5000 ml
During the surgical procedure, the investigators will monitor vital signs such as blood pressure, heart rate, temperature, oxygen levels, and urine output. Additionally, the investigators will track the amount of fluids given and removed, and the volume of blood aspirated.
Following surgery, participants will be hospitalized for 24 hours. During this time, the investigators will closely monitor the plethysmography variability index (PVI) in both groups. If the PVI exceeds 15%, participants will receive a ringer lactate fluid bolus of 4-6 ml/kg. Additionally, the investigators will keep track of their urine output, total fluid intake, and vital signs
- Conditions
- Lipodystrophy
- Being tested
- Intraoperative fluid ratio, Carotid Artery Doppler Peak Velocity Variation
- Keywords
- liposuction, carotid artery doppler peak velocity variation, plethysmography variability index, fluid ratio
- Medical subject headings
- Lipodystrophy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intraoperative fluid ratioOther
This ratio is calculated by dividing the sum of procedure subcutaneous infiltration and intravenous fluid by the total aspirate volume during surgery
Carotid Artery Doppler Peak Velocity VariationDevice
Patients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA.
| Study group | Role | What they receive |
|---|---|---|
| Group Intraoperative fluid ratio | Active comparator | The intraoperative fluid ratio will determine fluid administration. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4. Receives: Other: Intraoperative fluid ratio |
| Group Carotid Artery Peak Velocity Variation | Experimental | Patients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA. Receives: Device: Carotid Artery Doppler Peak Velocity Variation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean Postoperative PVi
Following surgery, patients will be hospitalized for 24 hours. Throughout this period, the investigators will keep a close eye on the Plethysmography Variability Index (PVi) in both groups. The PVi is a dynamic index that measures the relative variability of the plethysmography waveform detected noninvasively from a pulse oximetry sensor, ranging from 0 to 100. By automatically calculating the dynamic changes that occur during the respiratory cycle, it uses the detected amplitudes. A higher variability in the plethysmography waveform has been linked to preload dependence and fluid responders. If the PVi exceeds 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes.
Measured: 24 hours
Postoperative intravenous fluid balance
Following surgery, patients will be hospitalized for 24 hours. During the postoperative period, the investigators will keep track and document the exact volume of fluid administered in milliliters.
Measured: 24 hours
Secondary outcomes (4)
The intraoperative total volume of urine in the patient's catheter bag
During the intraoperative period, the investigators will measure and record the total volume of urine accumulated in the patient's catheter bag over the surgery period and will report urine output measured in milliliters per kilogram per hour.
Measured: the duration of the surgery
The postoperative total volume of urine in the patient's catheter bag
During the postoperative period, the investigators will measure and record the total volume of urine accumulated in the patient's catheter bag over a 24-hour period and will report urine output measured in milliliters per kilogram per hour.
Measured: 24 hours
Mean arterial blood pressure during hospitalization
Following surgery, patients will be hospitalized for 24 hours. During this time, the investigators will monitor Mean arterial pressure
Measured: 24 hours
The intraoperative intravenous fluid balance
Throughout the surgical procedure, the investigators will meticulously monitor and record the precise amount of fluid administered in milliliters.
Measured: the duration of the surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Jul 2023
- Study start20 Nov 2023
- Primary completion20 Nov 2024
- Study completion20 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for LipodystrophyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- The research will involve 50 female patients who have undergone liposuction and will be divided into two groups. Group Intraoperative Fluid Ratio: Fluid administration will be determined by the intraoperative fluid ratio. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4. Group Carotid Artery Peak Velocity Variation: Patients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA.
- Masking
- None (open label)
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- TJ Plast Advanced Center for Plastic Surgery
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sergio Soto Hopkins, TJ Plast Advanced Center for Plastic Surgery
- Investigators
- Sergio Soto Hopkins, M.D., Principal investigator, TJ Plast Advanced Center for Plastic SurgeryHector Milla, M.D., Study chair, TJ Plast Advanced Center for Plastic SurgeryIsrael Espino Gaucin, M.D., Study director, TJ Plast Advanced Center for Plastic Surgery
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05930106
- Sponsor's protocol ID
- R-2023-02
- Status last verified
- Apr 2025
- First submitted
- 9 Jun 2023
- Last updated
- 23 Apr 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Data obtained through this study may be provided to qualified researchers interested in liposuction fluid management. Data will be coded, and approval consent forms it's a prerequisite.
Publications
Wang G, Cao WG, Zhao TL. Fluid management in extensive liposuction: A retrospective review of 83 consecutive patients. Medicine (Baltimore). 2018 Oct;97(41):e12655. doi: 10.1097/MD.0000000000012655.
PubMed 30313055Song Y, Kwak YL, Song JW, Kim YJ, Shim JK. Respirophasic carotid artery peak velocity variation as a predictor of fluid responsiveness in mechanically ventilated patients with coronary artery disease. Br J Anaesth. 2014 Jul;113(1):61-6. doi: 10.1093/bja/aeu057. Epub 2014 Apr 9.
PubMed 24722322Ibarra-Estrada MA, Lopez-Pulgarin JA, Mijangos-Mendez JC, Diaz-Gomez JL, Aguirre-Avalos G. Respiratory variation in carotid peak systolic velocity predicts volume responsiveness in mechanically ventilated patients with septic shock: a prospective cohort study. Crit Ultrasound J. 2015 Dec;7(1):29. doi: 10.1186/s13089-015-0029-1. Epub 2015 Jun 26.
PubMed 26123610
Study at a glance
From the registry record, last updated by the sponsor on 23 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Respiratory Variation of Carotid Doppler Peak Velocity in Liposuction Fluid Management
- ClinicalTrials.gov ID
- NCT05930106
- Acronym / sponsor ID
- R-2023-02
- Conditions
- Lipodystrophy
- Keywords
- liposuction, carotid artery doppler peak velocity variation, plethysmography variability index, fluid ratio
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- TJ Plast Advanced Center for Plastic SurgeryUniversity, hospital or other
- Study start
- 20 Nov 2023 (actual)
- Primary completion
- 20 Nov 2024 (actual)
- Study completion
- 20 Dec 2024 (actual)
- First posted
- 5 Jul 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to compare the hemodynamic parameters, postoperative plethysmography variability index, the total amount of postoperative intravenous fluid administration needed, and the urine output of two methods of fluid resuscitation during liposuction surgery. One method involves using carotid artery Doppler peak velocity variation, while the other is the conventional fluid ratio.
Detailed description
The research will involve 50 female participants who have undergone liposuction and will be divided into two groups.
Group 1: Fluid administration will be determined by the intraoperative fluid ratio. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4.
Group 2: Participants will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA.
During the examination, a single cardiothoracic anesthesiologist will use a 13-6 MHz linear probe (Fujifilm Sonosite M-Turbo) to measure the peak velocity of the carotid artery on the left side. The sample volume will be positioned at the center of the lumen, 2 cm from the bulb, and a pulsed wave Doppler examination will be conducted.
To measure the ΔVPeak-CA, the investigators will calculate the maximum and minimum values during one respiratory cycle. This will be done by using the formula: 100x (maximum peak velocity - minimum peak velocity) / [(maximum peak velocity + minimum peak velocity)/2].
Surgical technique
The superwet tumescence technique will be the only method utilized for infiltration during the procedure. All participants will undergo power-assisted liposuction, and a single surgeon will operate. The wetting solution will contain 1000cc of normal saline and 2mg of epinephrine in a 1:500,000 ratio. The total Infiltration volume will depend on the patient.
The total amount of aspiration will depend on the patient and surgery plan and can vary between 2500 to 5000 ml
During the surgical procedure, the investigators will monitor vital signs such as blood pressure, heart rate, temperature, oxygen levels, and urine output. Additionally, the investigators will track the amount of fluids given and removed, and the volume of blood aspirated.
Following surgery, participants will be hospitalized for 24 hours. During this time, the investigators will closely monitor the plethysmography variability index (PVI) in both groups. If the PVI exceeds 15%, participants will receive a ringer lactate fluid bolus of 4-6 ml/kg. Additionally, the investigators will keep track of their urine output, total fluid intake, and vital signs
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- The research will involve 50 female patients who have undergone liposuction and will be divided into two groups. Group Intraoperative Fluid Ratio: Fluid administration will be determined by the intraoperative fluid ratio. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4. Group Carotid Artery Peak Velocity Variation: Patients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA.
| Arm | Type | Receives |
|---|---|---|
| Group Intraoperative fluid ratio | Active comparator | Other: Intraoperative fluid ratioThe intraoperative fluid ratio will determine fluid administration. This ratio is calculated by dividing the sum of subcutaneous infiltration and intravenous fluid by the total aspirate volume. Depending on the aspiration volume, it will be maintained at 1-1.4. |
| Group Carotid Artery Peak Velocity Variation | Experimental | Device: Carotid Artery Doppler Peak Velocity VariationPatients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA. |
Who may qualify
- Ages
- 21 to 60 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Female patients between 21 and 60 years old
- Liposuction with or without abdominoplasty
- American Society of Anesthesiologists Ӏ \& ӀӀ.
Key exclusion criteria (4 listed)
- History of previous liposuction surgery
- American Society of Anesthesiologist III
- Coagulation disorders
- Cardiopulmonary disorders
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intraoperative fluid ratioThis ratio is calculated by dividing the sum of procedure subcutaneous infiltration and intravenous fluid by the total aspirate volume during surgery | Other | Group Intraoperative fluid ratio |
| Carotid Artery Doppler Peak Velocity VariationPatients will be given a fluid maintenance rate of 1.5 ml/kg/h. To determine fluid responsiveness, the carotid artery peak velocity variation (ΔVPeak-CA) will be measured before, during, and after the procedure. If the ΔVPeak-CA goes above 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes, and the team will re-measure fluid responsiveness 10 minutes after each ΔVPeaK-CA. | Device | Group Carotid Artery Peak Velocity Variation |
Primary outcome
Mean Postoperative PVi
Time frame: 24 hours
Following surgery, patients will be hospitalized for 24 hours. Throughout this period, the investigators will keep a close eye on the Plethysmography Variability Index (PVi) in both groups. The PVi is a dynamic index that measures the relative variability of the plethysmography waveform detected noninvasively from a pulse oximetry sensor, ranging from 0 to 100. By automatically calculating the dynamic changes that occur during the respiratory cycle, it uses the detected amplitudes. A higher variability in the plethysmography waveform has been linked to preload dependence and fluid responders. If the PVi exceeds 15%, the patient will receive a fluid bolus of lactated ringer solution at a rate of 4-6 ml/kg over 10-15 minutes.
Postoperative intravenous fluid balance
Time frame: 24 hours
Following surgery, patients will be hospitalized for 24 hours. During the postoperative period, the investigators will keep track and document the exact volume of fluid administered in milliliters.
4 secondary outcomes
The intraoperative total volume of urine in the patient's catheter bag
Time frame: the duration of the surgery
The postoperative total volume of urine in the patient's catheter bag
Time frame: 24 hours
Mean arterial blood pressure during hospitalization
Time frame: 24 hours
The intraoperative intravenous fluid balance
Time frame: the duration of the surgery
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Apr 2025.
- Background: PubMed 30313055Wang G, Cao WG, Zhao TL. Fluid management in extensive liposuction: A retrospective review of 83 consecutive patients. Medicine (Baltimore). 2018 Oct;97(41):e12655. doi: 10.1097/MD.0000000000012655.
- Results publication: PubMed 24722322Song Y, Kwak YL, Song JW, Kim YJ, Shim JK. Respirophasic carotid artery peak velocity variation as a predictor of fluid responsiveness in mechanically ventilated patients with coronary artery disease. Br J Anaesth. 2014 Jul;113(1):61-6. doi: 10.1093/bja/aeu057. Epub 2014 Apr 9.
- Results publication: PubMed 26123610Ibarra-Estrada MA, Lopez-Pulgarin JA, Mijangos-Mendez JC, Diaz-Gomez JL, Aguirre-Avalos G. Respiratory variation in carotid peak systolic velocity predicts volume responsiveness in mechanically ventilated patients with septic shock: a prospective cohort study. Crit Ultrasound J. 2015 Dec;7(1):29. doi: 10.1186/s13089-015-0029-1. Epub 2015 Jun 26.
- Individual participant dataSharing planned: Yes. Data obtained through this study may be provided to qualified researchers interested in liposuction fluid management. Data will be coded, and approval consent forms it's a prerequisite.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sergio Soto Hopkins, M.D. principal investigator
TJ Plast Advanced Center for Plastic Surgery
Hector Milla, M.D. study chair
TJ Plast Advanced Center for Plastic Surgery
Israel Espino Gaucin, M.D. study director
TJ Plast Advanced Center for Plastic Surgery
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Intraoperative fluid ratio and Carotid Artery Doppler Peak Velocity Variation in people with Lipodystrophy, run by TJ Plast Advanced Center for Plastic Surgery at 1 site in Mexico.
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 4 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 23 Apr 2025. 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 Mexico. 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?
Mean Postoperative PVi (time frame: 24 hours). The study lists 2 primary outcomes in all. 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 NCT05930106, which also lists 3 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 23 Apr 2025; AzTrials last refreshed its copy on 7 Nov 2026.