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CTRI Number  CTRI/2025/07/090420 [Registered on: 08/07/2025] Trial Registered Prospectively
Last Modified On: 07/07/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Effect of spinal anaesthesia of Injection Hyperbaric Bupivacaine mixed with Injection Fentanyl followed by Injection Isobaric Bupivacaine compared with Injection Hyperbaric Bupivacaine mixed with Injection Fentanyl in lower limb fractures in old age patients.  
Scientific Title of Study   Efficacy of sequential intrathecal injection of Hyperbaric Bupivacaine-Fentanyl followed by Isobaric Bupivacaine compared with Hyperbaric Bupivacaine-Fentanyl in orthopaedic lower limb surgeries in geriatric patients: A prospective randomised double blind clinical study 
Trial Acronym  No 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Shreenidhi Patel  
Designation  Second Year Anaesthesia Resident 
Affiliation  Government Medical College, Baroda 
Address  Department of Anaesthesia,2nd floor, New surgical Building, Government Medical College, Baroda Vadodara GUJARAT 390001 India

Vadodara
GUJARAT
390001
India 
Phone  9737338876  
Fax    
Email  shree7033@yahoo.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Kashmira Pander 
Designation  Assistant Professor 
Affiliation  Government Medical College,Baroda. 
Address  Department of Anaesthesia,2nd floor, New surgical Building, Government Medical College, Baroda Vadodara GUJARAT 390001 India

Vadodara
GUJARAT
390001
India 
Phone  9099045151  
Fax    
Email  dr.kashmira13@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Kashmira Pander 
Designation  Assistant Professor 
Affiliation  Government Medical College,Baroda. 
Address  Department of Anaesthesia,2nd floor, New surgical Building, Government Medical College, Baroda Vadodara GUJARAT 390001 India

Vadodara
GUJARAT
390001
India 
Phone  9099045151  
Fax    
Email  dr.kashmira13@gmail.com  
 
Source of Monetary or Material Support  
Government Medical College, Baroda, Gujarat, India. Pincode-390001  
 
Primary Sponsor  
Name  Government Medical College, Baroda.  
Address  Department of Anaesthesiology, New Surgical Block, SSG Hospital Vadodara,390001, Gujarat, India 
Type of Sponsor  Government medical college 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Shreenidhi Patel   SSG Hospital  First Floor, Department of Orthopaedics, New Surgical Building, SSG Hospital, Government Medical College, Baroda Vadodara GUJARAT
Vadodara
GUJARAT 
9737338876

shree7033@yahoo.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee for Biomedical and Health Research (IECBHR),Medical College and SSG Hospital, Baroda   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Inj. Hyperbaric Bupivacaine 2ml with Inj. Fentanyl 0.5ml (premixed)   After pre-anesthetic evaluation, patients meeting the inclusion criteria will be selected. In the operation theatre, necessary equipments and drugs to be kept ready. Spinal anaesthesia will be given in L3-L4 intervertebral space. Patients will be divided into two groups. In HB group, Inj. Hyperbaric Bupivacaine 2 ml with Inj. Fentanyl 0.5ml will be given intrathecally without barbotage. Patient is immediately put in supine position without raising extremities and monitoring of parameters will be started immediately. Sensory and motor blockade, requirement of Inj. Ephedrine will be observed.  
Intervention  Inj. Hyperbaric Bupivacaine with Inj. Fentanyl followed sequentially by Inj. Isobaric Bupivacaine  After pre-anesthetic evaluation, patients meeting the inclusion criteria will be selected. In the operation theatre, necessary equipments and drugs to be kept ready. Spinal anaesthesia will be given in L3-L4 intervertebral space. Patients will be divided into two groups. In HIB group, Inj. Hyperbaric Bupivacaine 1 ml with Inj. Fentanyl 0.5ml followed by Inj. Isobaric Bupivacaine 1ml will be given intrathecally without barbotage. • Patient is immediately put in supine position without raising extremities and monitoring of parameters will be started immediately. Sensory and motor blockade, requirement of Inj. Ephedrine will be observed.  
 
Inclusion Criteria  
Age From  65.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  1) Age Group – 65 to 99 year
2) Either Gender.
3) ASA – II/III
4) Orthopaedic lower limb surgeries
5) Duration of surgery: 2.5 to 3 hours
6) Patients providing written informed consent 
 
ExclusionCriteria 
Details  1)Patient refusal.
2)Patients with Local skin infection, Vertebral column abnormalities, bleeding disorders, cardiopulmonary disease, neuropathies).
3)Patients with allergy to study drugs.
4)BMI more than 30kg/m2 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To observe haemodynamic stability (blood pressure, pulse rate) and number of
doses of Inj. Ephedrine (5mg) i.v. required  
Till 8 hours 
 
Secondary Outcome  
Outcome  TimePoints 
To assess Sensory and Motor blockade characteristics– like
Onset of sensory block at L1 dermatomal level(mins)
Time to achieve maximum sensory level (mins)
Maximum sensory block achieved
Time for two segment regression(mins)
Total duration of sensory block (Time to regress till S1 dermatome) (mins)
Onset of motor blockade (Modified Bromage 1) (mins)
Time to achieve maximum motor blockade (mins)
Duration of motor blockade (mins)
To observe any complications like bradycardia, hypotension, respiratory
depression, urinary retention, shivering. 
Till 24 hours 
 
Target Sample Size   Total Sample Size="84"
Sample Size from India="84" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   25/07/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  25/07/2025 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   The aim of this study is to compare the efficacy of sequential injection of hyperbaric bupivacaine with fentanyl followed by isobaric bupivacaine and hyperbaric bupivacaine with fentanyl intrathecally and to study the haemodynamic effects and recovery in lower limb surgeries in geriatric patients. 84 patients for lower limb orthopaedic surgeries will be randomly allocated in two different groups. In each group, there will be 42 patients who are posted for elective or emergency lower limb orthopaedic surgeries.In one group HIB group, Inj. Hyperbaric Bupivacaine 1 ml with Inj. Fentanyl 0.5ml followed by Inj. Isobaric Bupivacaine 1ml will be given intrathecally without barbotage. In second group, HB group, Inj. Hyperbaric Bupivacaine 2 ml with Inj. Fentanyl 0.5ml will be given intrathecally. As the primary outcome, haemodynamic stability (blood pressure, pulse rate) and number of doses of Inj. Ephedrine (5mg) i.v. required will be observed. As the secondary outcome, comparison of sensory and motor blockade characteristics will be assessed. The proposed advantage of this study is that the sequential intrathecal administration of Inj. Hyperbaric Bupivacaine+ Inj. Fentanyl followed by Inj. Isobaric Bupivacaine may be helpful in reduction of intraoperative hypotension and subsequent lower vasopressor requirements in geriatric patients while achieving satisfactory block characteristics (e.g., onset, intensity, and duration) when compared to Inj. Hyperbaric Bupivacaine+ Inj. Fentanyl alone. 
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