Title: Comparison of two Different Low Doses of Intrathecal Bupivacaine & Fentanyl Mixture in Caesarean Section & to see the Relevance of Preloading in Them

Authors: Deepika Meena, Sonali Dhawan, Pramila Soni, Rashmi Jain, Peeru Singh, Priyanka Dixit

 DOI:  https://dx.doi.org/10.18535/jmscr/v6i4.07

Abstract

Background and Aim: Pregnant woman are more sensitive to local anaesthetics during caesarean section. The aim of this prospective, double blind randomized controlled study was to compare two different low doses of intrathecal bupivacaine & fentanyl mixture in caesarean section and to see relevance of preloading in them to maintain stable hemodynamics and provide better analgesia with minimal complications.

Materials and Method: 200 parturient scheduled for caesarean section were randomly allocated into 2 groups of 100 patients each and a subgroup of 50 patients.Group1A (0.5% Hyperbaric Bupivacaine 7.5mg+25µg fentanyl with preloading colloid 10ml/kg), Group1B (0.5% Hyperbaric Bupivacaine 7.5mg+25µg fentanyl  without preloading), Group2A (0.5% Hyperbaric Bupivacaine5mg+25µg fentanyl +0.5ml NS with preloading colloid 10ml/kg) and Group2B (0.5% Hyperbaric Bupivacaine5mg+25µg fentanyl+0.5ml NS without preloading).Maternal hemodynamics, duration of sensory and motor analgesia, total duration of analgesia and apgar score of the new born were compared between the groups and analysed by SPSS software using anova and student t test.

Result: Hemodynamic status was more stable in group-2 with less significant fall in mean blood pressure. Surgical anaesthesia was of equal quality in both and apgar score was≥9 in both the groups. Total duration of analgesia in group 1A was 182.64±11.45, group 1B was 180.42±12.93, group 2A was 154.04±10.56 and group 2B was 156.02±9.43.So, the total duration of analgesia which was assessed by VAS was excellent in the group 1.

Conclusion: As we are taking caesarean section in our study which takes maximum upto 40-50 min. So the combination of diluted low-dose bupivacaine and fentanyl could provide more stable hemodynamic status, without compromising required surgical anaesthesia and minimum complications to mother with no foetal compromise.

Keywords: Spinal-anaesthesia, local-anaesthetic, fentanyl, caesarean-section.

References

  1. Black C, kaye JA, Jick H. Cesaerean delivery in the united kingdom: time trends in the general practice research database. Obstet Gynecol 2005;106:151-5.
  2. Denis Snegovskikh, Ferne R.Braveman. Pregnancy associated diseases: ed 2,2012, Stoelting,s Anaesthesia and Co Existing Disease,p563.
  3. Michael A. Frolich. Obstetrics Anaesthesia:ed 5,2013, Morgan & Mikhail,s Clinical Anaesthesiology, p855.
  4. Crae AF, Wildsmith JA. Prevention and treatment of hypotension during central neural block. Br. J Anaesth 1993; 70:672-80
  5. Saravanan S, Kocarev M, Wilson RC, Watkins E, Columb MO, Lyons G. Equivalent dose of ephedrine and phenylephrine in the prevention of post-spinal hypotension in caesarean section. Br J Anaesthesia 2006;96:95-9.
  6. Stewart A, Fernando R, Mc Donald S, Hignett R, jones T, Columb M. the dose dependant effect of phenylephrine for elective caesarean delivery under spinal anaesthesia. Anaesth Analg 2010;111:1230-7.
  7. Lee A, Ngan Kee WD, Gin T. A quantitative, systematic review of randomized controlled trials of ephedrine vs phenylephrine for the management of hypotension during spinal anaesthesia for caesarean delivery. Anaesth Analog 2002;94:920-6.
  8. Cyna AM, Andrew AM, Emmett RS et al: Techniques for preventing hypotension during spinal anaesthesia for caesarean section. Cochrane Database Syst Rev2006;4: CD002251.
  9. Caplan RA, Ward RJ, Posner K, Cheney FW. Unexpected cardiac arrest during spinal anaesthesia: A closed claims analysis of predisposing factors. Anaesthesiology 1988;68:5-11.
  10. Kaur M, Katyal S, Kathuria S, Singh P. A comparative evaluation of intrathecal bupivacaine alone, sufentanyl or butorphanol in combination with bupivacaine for endoscopic urological surgery. Saudi J Anaesth 2011;5:202-207.
  11. Nagata E, Yoshimine K, Minoda Y, Kawaguchi Y, Sakamoto M, Takehara A. Comparison of 8mg and 10mg hyperbaric bupivacaine in spinal anaesthesia for caesarean section in Japanese parturients. Masui 2004;53:131-6.
  12. Subedi A, Tripathi M, Bhattarai BK, Gupta PK, Pokharal K, Regmi MC. The effect of height and weight adjusted dose of intrathecal hyperbaric bupivacaine for elective caesarean section. JNMA J Nepal Med Assoc 2011;51:1-6.
  13. Seyedhejazi M, Madarek E. Effect of small dose bupivacaine-fentanyl in spinal anaesthesia on haemodynamic nausea and vomiting in caesarean section. Pak J Med Sci 2007;23:747-50.
  14. BN Biswas, A Rudra, BK Bose et al Intrathecal bupivacaine with fentanyl improves analgesia during caesarean delivery and in early post operative period. IJA 2002;46(6):469-472.
  15. Axelsson K H ,Edström Spinal Anaesthesia with Hyperbaric 0.5 % Bupivacaine: Effects of Volume. Acta Anaesthesiologica Scandinavica 1982(26), pages 439–445.
  16. Belzarena SD. Clinical effects of intrathecally administered fentanyl in patients undergoing caesarean section. Anaesth Analg 1992;74:653-7.
  17. Jaishri bogra, Namita arora, Pratima Srivastava. 2005 “Synergistic effect of intrathecal fentanyl and bupivacaine in spinal anaesthesia for caesarean section”:. BMC Anesthesiology.>v.5 : 5.
  18. Kang FC, Tsai YC, Chang PJ, Chen TY. Subarachnoid fentanyl with diluted small dose bupivacaine for caesarean section delivery. Acta Anaesthesiol Sin 1998;36:207-14.

Corresponding Author

Deepika Meena

Resident, Department of Anaesthesia,

Sardar Patel Medical College & AGH, Bikaner, Rajasthan

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