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Hip FracturesRACHYPNCT03373864

Hypobaric Lateral Spinal Anesthesia Versus General Anesthesia for the Hip Fracture Surgery

A study testing Unilateral spinal anesthesia and General anesthesia in people with Hip Fractures, run by Hospices Civils de Lyon at 1 site in France.

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

Hip fracture is a frequent pathology, involving elderly patients with many co-morbidities ; therefore, post-operative morbidity and mortality is high. It is reported that intra-operative hemodynamics correlate with post-operative complications such as myocardial injury after non-cardiac surgery (MINS) or acute kidney… Read more about this study

Who is it for?
Ages 70 years and older
Conditions the study is for
Hip Fractures
What is being tested?
Unilateral spinal anesthesia and General anesthesia
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
154 participants
Where
1 siteFrance
Study dates
11 Jan 2018to 25 Nov 2019
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 70 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Every patient aged 70 years or more who undergoes urgent surgery for a traumatic hip fracture.

Who cannot join

  • Patients younger than 70 years of age
  • Pathological fractures or multiple trauma
  • Contraindications to spinal anesthesia:
  • allergy to the local anesthetic
  • patients treated by clopidogrel (Plavix®)
  • patients treated by oral anticoagulants: dabigatran (Pradaxa®), rivaroxaban (Xarelto®), or apixaban (Eliquis®).
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  • Coagulation disorders: (Prothrombin Time < 50 %, or Partial Thromboplastin Time ratio > 1.5, or platelets < 80 G/L),
  • Local infection of the puncture site
  • hyperthermia (> 38.5°C)
  • agitated patients
  • patients included in another study
  • patients under judicial protection

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hôpital Edouard Herriot - Service d'Anesthésie-Réanimation

    Lyon, 69003

Other trials in France

About this study

Official title: Hypobaric Lateral Spinal Anesthesia Versus General Anesthesia: Hemodynamic Stability and Short Term Cardiovascular Complications in Elderly Patients Undergoing Hip Fracture Surgery.

Hip fracture is a frequent pathology, involving elderly patients with many co-morbidities ; therefore, post-operative morbidity and mortality is high. It is reported that intra-operative hemodynamics correlate with post-operative complications such as myocardial injury after non-cardiac surgery (MINS) or acute kidney injury (AKI) ; that is why elderly patients undergoing hip fracture surgery should benefit from a better hemodynamic stability.

Low-dose hypobaric lateral spinal anesthesia with a reduced dose of local anesthetic has been shown to have better hemodynamic stability than conventional spinal anesthesia. It has also been reported that general anesthesia and conventional spinal anesthesia in elderly patients undergoing hip fracture surgery have the same hemodynamic effect. However, no published study has compared low-dose hypobaric lateral spinal anesthesia to general anesthesia with regards to hemodynamic effects.

The aim of the present study is to compare the intra-operative hemodynamics of low-dose hypobaric lateral spinal anesthesia with that of general anesthesia in elderly patients undergoing hip fracture surgery.

Conditions
Hip Fractures
Being tested
Unilateral spinal anesthesia, General anesthesia
Keywords
Unilateral spinal anesthesia, general anesthesia, hemodynamic stability, MINS, hip fracture, elderly, AKI
Medical subject headings
Hip Fractures

What participants receive

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

  • Unilateral spinal anesthesiaProcedure or surgery

    Unilateral spinal anesthesia with hypobaric local anesthesia allowing a lateralized anesthesia of the fractured limb.

  • General anesthesiaProcedure or surgery

    General anesthesia following the latest recommendations for elderly patients (SFAR 2017)

Study groups in NCT03373864
Study groupRoleWhat they receive
Unilateral spinal anesthesiaExperimentalIn this arm, the patients will have a hypobaric lateral spinal anesthesia. Sedation can be added for the patients comfort.
Receives: Procedure: Unilateral spinal anesthesia
General anesthesiaActive comparatorIn this arm, the patients will have a general anesthesia.
Receives: Procedure: General anesthesia

What is being measured

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

  1. Number of episode of severe intraoperative hypotension

    Occurrence of an episode of severe hypotension defined as a mean arterial pressure (MAP) < 65 mmHg for more than 12 minutes during the operative time.

    Measured: At Day 0

Secondary outcomes (12)
  1. All-cause mortality

    Measured: 30 days after surgery

  2. Myocardial injury after non cardiac surgery (MINS) occurence

    Elevated troponin T level (troponin T > 100 ng/L) in aged patients (over 75 years) and for patients under the age of 75 years old Troponin T> 34 ng/L for men and troponin T > 16 ng / L for women, in a blood test performed in the first 3 days after surgery due to a myocardial ischemia.

    Measured: 3 days after surgery

  3. Acute kidney injury (AKI) occurence

    Postoperative AKI is defined as an increase in serum creatinine between preoperative and postoperative values (increase of more than 1.5-fold or more than 0.3mg/dL of the value before surgery.)

    Measured: 3 days after surgery

  4. Hemoglobin rate

    Mean decrease between preoperative and postoperative values at 1st and 3rd day after surgery

    Measured: 1 day after surgery

  5. Hemoglobin rate

    Mean decrease between preoperative and postoperative values at 1st and 3rd day after surgery

    Measured: 3 days after surgery

  6. Blood loss

    Intraoperative blood loss : quantity of blood in the suction container

    Measured: At Day 0

  7. Quantity of ephedrine used during the intervention

    Quantity of ephedrine used during operative time and recovery room

    Measured: At Day 0

  8. Quantity of noradrenaline used during the intervention

    Quantity of noradrenaline used during operative time and recovery room

    Measured: At Day 0

  9. Number of episodes with a MAP < 65 mmHg for more than 12 minutes during operative time

    Measured: At Day 0

  10. Total time with MAP < 65 mmHg for more than 12 minutes during operative time

    Measured: At Day 0

  11. Hospitalisation time

    Measured: Up to 45 days after surgery

  12. Number of episode of severe hypotension in the recovery room.

    Occurrence of an episode of severe hypotension defined as a mean arterial pressure (MAP) < 65 mmHg for more than 12 minutes in the recovery room.

    Measured: At Day 0

Timeline

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

  1. First posted14 Dec 2017
  2. Study start11 Jan 2018
  3. Primary completion25 Nov 2019
  4. Study completion25 Nov 2019

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
154 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03373864
Sponsor's protocol ID
69HCL17_0513
Acronym
RACHYP
Status last verified
Dec 2025
First submitted
7 Dec 2017
Last updated
19 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Simonin M, Delsuc C, Meuret P, Caruso L, Deleat-Besson R, Lamblin A, Huriaux L, Abraham P, Bidon C, Giai J, Riche B, Rimmele T. Hypobaric Unilateral Spinal Anesthesia Versus General Anesthesia for Hip Fracture Surgery in the Elderly: A Randomized Controlled Trial. Anesth Analg. 2022 Dec 1;135(6):1262-1270. doi: 10.1213/ANE.0000000000006208. Epub 2022 Sep 22.

    PubMed 36135347

Questions about this trial

What is this clinical trial studying?

A study testing Unilateral spinal anesthesia and General anesthesia in people with Hip Fractures, run by Hospices Civils de Lyon at 1 site in France.

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 1 inclusion and 12 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 19 Dec 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 France. 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?

Number of episode of severe intraoperative hypotension (time frame: At Day 0). 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 NCT03373864, which also lists 1 linked publication.

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 19 Dec 2025.

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