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CTRI Number  CTRI/2026/01/101370 [Registered on: 16/01/2026] Trial Registered Prospectively
Last Modified On: 16/01/2026
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   Effect of adding Dexmedetomidine to spinal block in patients for elective cesarean section on incidence of postdural puncture headache :A randomized control study. 
Scientific Title of Study   Effect of intrathecal Dexmedetomidine on incidence of postdural puncture headache (PDPH) in parturients undergoing elective LSCS:A randomized control double blind study. 
Trial Acronym  nil 
Secondary IDs if Any  
Secondary ID  Identifier 
nil  ClinicalTrials.gov 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Priyanka Gupta 
Designation  Professor  
Affiliation  Graphic Era institute of medical sciences  
Address  Department of Anaesthesiology, Graphic Era institute of Medical sciences Dehradun
32 milestone chakrata road dehradun
Dehradun
UTTARANCHAL
248001
India 
Phone  7060665955  
Fax    
Email  priyankamalhotra82@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Priyanka Gupta 
Designation  Professor  
Affiliation  Graphic Era institute of medical sciences  
Address  Department of Anaesthesiology Graphic Era institute of Medical Sciences Dehradun
32 milestone chakrata road dehradun
Dehradun
UTTARANCHAL
248001
India 
Phone  7060665955  
Fax    
Email  priyankamalhotra82@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Priyanka Gupta 
Designation  Professor  
Affiliation  Graphic Era institute of medical sciences  
Address  Department of Anaesthesiology Graphic Era institute of Medical Sciences Dehradun
32 milestone chakrata road dehradun
Dehradun
UTTARANCHAL
248001
India 
Phone  7060665955  
Fax    
Email  priyankamalhotra82@gmail.com  
 
Source of Monetary or Material Support  
Graphic Era institute of Medical Sciences Dehradun Uttarakhand 248001 India 
 
Primary Sponsor  
Name  nil 
Address  nil 
Type of Sponsor  Other [] 
 
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 
Priyanka Gupta   Graphic Era institute of medical sciences   Department of Anaesthesiology ,Maternity Operation theatre complex,2nd floor Graphic Era Hospital
Dehradun
UTTARANCHAL 
07060665955

priyankamalhotra82@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
GEU-GEIMS Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O998||Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Control  Parturients will be divided into two groups randomly using a computer-generated random number list, with Group C (control) will receive 2.2 ml of 0.5% hyperbaric bupivacaine AND 0.2ml NS in SAB. Group D (demedetomidine) will receive 2.2 ml of 0.5% hyperbaric bupivacaine and preservative free dexmedetomidine 5ug in SAB. SAB will be given in sitting position under all aseptic precautions with 26G quincke spinal needle,bevel oriented parallel to dural fibres, at L3-L4 or L2-L3 intervertebral space after locally anaesthetizing the field of needle insertion with 2ml of 2% lidocaine. Incision will be given once T6 sensory level is achieved.Patients will be observed for PDPH for 72 hours. Those who complaint of headache will be asked details to diagnose PDPH by trained staff not a part of the study. Time of onset of headache will be noted. Severity will be evaluated using the verbal rating scale (VRS) rated from 0-10, where 0 = no pain and 10 = worst imaginable pain. Once the diagnosis of PDPH is confirmed clinically, patients will be advised bed rest, plenty of fluids, caffeine. Symptomatic patients (VRS3) will be given IV paracetamol 10-15mg/kg with IV g and observed for 45 minutes. If headache is not relieved,IV paracetamol will be repeated. Intractable PDPH will be managed by epidural blood patch. 
Intervention  Dexmedetomidine is added intrathecally to know its effect in prevention of PDPH in parturients  Parturients will be divided into two groups randomly using a computer-generated random number list, with Group C (control) will receive 2.2 ml of 0.5% hyperbaric bupivacaine AND 0.2ml NS in SAB. Group D (demedetomidine) will receive 2.2 ml of 0.5% hyperbaric bupivacaine and preservative free dexmedetomidine 5ug in SAB. SAB will be given in sitting position under all aseptic precautions with 26G quincke spinal needle,bevel oriented parallel to dural fibres, at L3-L4 or L2-L3 intervertebral space after locally anaesthetizing the field of needle insertion with 2ml of 2% lidocaine. Incision will be given once T6 sensory level is achieved.Patients will be observed for PDPH for 72 hours. Those who complaint of headache will be asked details to diagnose PDPH by trained staff not a part of the study. Time of onset of headache will be noted. Severity will be evaluated using the verbal rating scale (VRS) rated from 0-10, where 0 = no pain and 10 = worst imaginable pain. Once the diagnosis of PDPH is confirmed clinically, patients will be advised bed rest, plenty of fluids, caffeine. Symptomatic patients (VRS3) will be given IV paracetamol 10-15mg/kg with IV g and observed for 45 minutes. If headache is not relieved,IV paracetamol will be repeated. Intractable PDPH will be managed by epidural blood patch.  
 
Inclusion Criteria  
Age From  20.00 Year(s)
Age To  40.00 Year(s)
Gender  Female 
Details  ASA-II,20-40 years of age, posted for elective LSCS, weighing less than 80kgs  
 
ExclusionCriteria 
Details  those with recurrent headache (migraine), neurological dysfunction, hypertension, diabetes, thyroid disease, spinal deformity, refusal to participate and contraindications to SAB 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   An Open list of random numbers 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
1. Incidence of PDPH in parturients for elective LSCS given intrathecal dexmedetomidine.  continous monitoring of parturient will be done for 72 hours after spinal block.
Any time during this duration,if parturient complains of PDPH, it will be taken as positive response 
 
Secondary Outcome  
Outcome  TimePoints 
1. Requirement of epidural blood patch in patients presented with PDPH
2. Incidence of post spinal hypotension & correlation to incidence of PDPH
 
Heart rate,Mean arterial pressure & saturation will be noted as baseline, every 2 minutes for 10 minutes & every 5 minutes till 45 minutes of giving spinal block 
 
Target Sample Size   Total Sample Size="130"
Sample Size from India="130" 
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)   30/01/2026 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="0"
Months="6"
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  
This prospective randomized control clinical trial will be conducted at Graphic Era institute of medical sciences, Dehradun, Uttarakhand after approval from institutional ethics committee and registering with Clinical Trial Registry of India (CTRI). A total of 130 parturients, ASA-II,20-40 years of age, posted for elective LSCS, weighing less than 80kgs will be enrolled in the study. Written informed consent will be taken from all the patients. Exclusion criteria will include those with recurrent headache (migraine), neurological dysfunction, hypertension, diabetes, thyroid disease, spinal deformity, refusal to participate and contraindications to SAB.All patients will undergo detailed preanaesthetic check. Eighteen-gauge cannula will be secured in nondominant hand preoperatively. Fasting duration will also be noted in all the parturients. During this time, Ringer lactate (RL) will be infused @ 4ml/kg/hr. In operation theatre, standard ASA monitors (noninvasive blood pressure, pulse oximeter and electrocardiogram) will be attached.
Parturients will be divided into two groups randomly using a computer-generated random number list, with Group C (control) receiving 2.2 ml of 0.5% hyperbaric bupivacaine AND 0.2ml NS in SAB. Group D (dexmedetomidine)will receive 2.2 ml of 0.5% hyperbaric bupivacaine and preservative free dexmedetomidine 5ug in SAB.  SAB will be given in sitting position under all aseptic precautions with 26G quincke spinal needle, bevel oriented parallel to dural fibers, at L3-L4 or L2-L3 intervertebral space after locally anaesthetizing the field of needle insertion with 2ml of 2% lidocaine. Incision will be given once T6 sensory level is achieved.  All spinal blocks will be given in single prick. Those requiring multiple pricks will be excluded from the analysis. Parturients will be positioned 15 degree left lateral to avoid aortocaval compression. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial blood pressure (MAP), heart rate (HR) and arterial oxygen saturation(SpO2) will be noted every 2mins till 10 mins and every 5min thereafter post spinal injection. Intraoperative hypotension will be labelled as SPB <100mmHg or MAP<60 mmHg and will be managed by boluses of IV ephedrine 5mg.Bradycardia will be considered at HR of <50bpm and treated with IV atropine 0.6mg stat. After delivery of baby, IV oxytocin 20U will be given as slow infusion for uterine contraction. Apgar score will be assessed by a pediatrician at 1 and 5 min of delivery of baby.
Parturients will be divided into two groups randomly using a computer-generated random number list, with Group C (control) receiving 2.2 ml of 0.5% hyperbaric bupivacaine AND 0.2ml NS in SAB. Group D (dexmedetomidine)will receive 2.2 ml of 0.5% hyperbaric bupivacaine and preservative free dexmedetomidine 5ug in SAB.  SAB will be given in sitting position under all aseptic precautions with 26G quincke spinal needle, bevel oriented parallel to dural fibers, at L3-L4 or L2-L3 intervertebral space after locally anaesthetizing the field of needle insertion with 2ml of 2% lidocaine. Incision will be given once T6 sensory level is achieved.  All spinal blocks will be given in single prick. Those requiring multiple pricks will be excluded from the analysis. Parturients will be positioned 15 degree left lateral to avoid aortocaval compression. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial blood pressure (MAP), heart rate (HR) and arterial oxygen saturation(SpO2) will be noted every 2mins till 10 mins and every 5min thereafter post spinal injection. Intraoperative hypotension will be labelled as SPB <100mmHg or MAP<60 mmHg and will be managed by boluses of IV ephedrine 5mg.Bradycardia will be considered at HR of <50bpm and treated with IV atropine 0.6mg stat. After delivery of baby, IV oxytocin 20U will be given as slow infusion for uterine contraction. Apgar score will be assessed by a pediatrician at 1 and 5 min of delivery of baby.
 
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