A comparison of USG guided versus Conventional technique of subarachnoid block in obese patients

Recruiting

Conditions: Other Procedures,

Registration Number: CTRI/2023/10/058970

Lead Sponsor: Government medical college, vadodara

Brief Summary: This study is a randomised controlled trial comparing efficacy of preprocedural ultrasound scanning in obese patients for reducing the number of attempt for subarachnoid block .

After pre aneasthestic evaluation and 6 -8 hours of fasting , informed written consent will be taken from the patient .Then patient will be taken inside operation theatre , multipara monitors will be attached and all baseline vital parameters will be recorded .Premedication and Adequate pre loading will be done. Patient will be kept in sitting position on a level table with feet resting on foot rest with an assistant holding the patient.

Grouping of patient : The study population will be randomly devided in two groups

GROUP P: Pre -procedural ultrasound scanning group

In this group low frequency curvilinear probe will be placed vertically in paramedian plane to visualise sacrum which appeared as linear hyperechoic line with acoustic shadow anteriorly, now probe will be slide cranially to first visualise L5-S1 Interlaminarspace then L5-L4 and L3-L4 interlaminar space these space will be marked using surgical marker pen . Now the probe will be rotated 90 degree and placed transversly in midlineto visualise spinous process which appeared as linear hypoechoic shadow, now the central point of probe will be marked and this point will be extended as a vertical line using surgical marking pen. The point where these two line intersect will be our point of indertion of spinal needle.now under all aseptic precaution subarachnoid block will be given in marked point of insertion using 23 G Spinal needle.

GROUP L: Landmark guided Group

In this group conventional landmark guided technique will be used to identify the intervertebral space. under all sterile aseptic precaution subarachnoid block will be given with 23 G Spinal needle.

Followimg parameter will be recorded in both the group:

1) Number of attempts

2) Number of needle passes

3) Time taken to identify the intervertebral space

4) Time taken for subarachnoid block

5) Time to achieve successful block

Detailed Description: Not available

Recruitment & Eligibility

Status: Open to Recruitment

Sex: All

Target Recruitment: 90

Inclusion Criteria

1)Basal metabolic index -30 to 40kg/m2 2)ASA Grade- II AND III.

Exclusion Criteria

1)Patient refusal 2)Contraindication to central neauraxial block 3)Patient with local site infection 4)Patient with coagulopathy disorder 5)Pregnant female 6)Patient with elevated intra cranial pressure.

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To Compare number of attempts for subarachnoid block	1

Secondary Outcome Measures

Name	Time	Method
1)No. of needle passes	2) Time for identifying intervertebral space

Trial Locations

Locations (1): SSG Hospital , Vadodara
🇮🇳
Vadodara, GUJARAT, India
SSG Hospital , Vadodara
🇮🇳Vadodara, GUJARAT, India
Nimisha Nayani
Principal investigator
7621908377
nimishanayani@gmail.com