References

Akbas, M., T.A. Titiz, F. Ertugrul, H. Akbas and M. Melikoglu, 2005. Comparison of the effect of ketamine added to bupivacaine and ropivacaine, on stress hormone levels and the duration of caudal analgesia. Acta Anaesthesiologica Scand., 49: 1520-1526.
CrossRef  |  Direct Link  |  

Barta, Y.K., M. Shamseh, M.J. Alkhasti, H.J. Rawdhan and A.R.A. Qattan et al., 2007. Intraoperative small-doses of ketamine does not reduce pain or analgesic consumption during perioperativeopiood analgesia in children after tonsillevtomy. Int. J. Clin. Pharmacolther, 45: 155-160.

Batra, Y.K., R. Mahajan, S.K. Bangalia, O.N. Nagi and M.S. Dhillon, 2005. Bupivacaine ketamine is superior to intra-articu-lar ketamine analgesia following arthroscopic knee surgery. Can. J. Anesthesia, 52: 832-836.
CrossRef  |  Direct Link  |  

Chaturvedi, S. and U.G. Domkondwar, 2005. A comparative study of topical analgesia with 4% lignocaine and 0.5% bupivacaine following tonsillectomy. Indian J. Anaesthesia, 49: 113-115.
Direct Link  |  

Choi, J.H., J.I. Oh, T.M. Kim, H.C. Yoon and I.H. Park et al., 2015. Long-term subjective and objective outcomes of adenotonsillectomy in Korean children with obstructive sleep apnea syndrome. Clin. Exp. otorhinolaryngology, 8: 256-260.
PubMed  |  Direct Link  |  

Cielo, C.M. and A. Gungor, 2016. Treatment options for pediatric obstructive sleep apnea. Curr. Prob. Pediat. Adolesc. health care, 46: 27-33.
CrossRef  |  Direct Link  |  

Cohen, N. and D.D. Sommer, 2016. Post-tonsillectomy pain control: Consensus or controversy?. Pain, 6: 31-37.
CrossRef  |  Direct Link  |  

Costantini, R., G. Affaitati, A. Fabrizio and M.A. Giamberardino, 2011. Controlling pain in the post-operative setting. Int. J. Clin. Pharmacol Ther., 49: 116-127.

Geodakian, O.S., 2013. Systemic toxicity of local anaesthetics in children. Anesteziologia Reanimatologia, 59: 53-56.
Direct Link  |  

Hamada, M., M. Iida, J. Nota, N. Matsumoto and S. Sawada et al., 2015. Safety and efficacy of adenotonsillectomy for obstructive sleep apnea in infants, toddlers and preschool children. Auris Nasus Larynx, 42: 208-212.
CrossRef  |  PubMed  |  Direct Link  |  

Khezri, M.B., J. Ghasemi and N. Mohammadi, 2013. Evaluation of the analgesic effect of ketamine as an additive to intrathecal bupivacaine in patients undergoing cesarean section. Acta Anaesthesiologica Taiwanica, 51: 155-160.
CrossRef  |  PubMed  |  Direct Link  |  

Kurdi, M.S., K.A. Theerth and R.S. Deva, 2014. Ketamine: Current applications in anesthesia, pain and critical care. Anesthesia Essays Res., 8: 283-290.
CrossRef  |  PubMed  |  Direct Link  |  

Millington, A.J. and J.S. Phillips, 2014. Current trends in tonsillitis and tonsillectomy. Ann. Royal Coll. Surgeons Engl., 96: 586-589.
CrossRef  |  PubMed  |  Direct Link  |  

Peng, A., K.M. Dodson, L.R. Thacker, J. Kierce and J. Shapiro et al., 2011. Use of laryngeal mask airway in pediatric adenotonsillectomy. Arch. Otolaryngology Head Neck Surgery, 137: 42-46.
CrossRef  |  Direct Link  |  

Ruetsch, Y.A., T. Boni and A. Borgeat, 2001. From cocaine to ropivacaine: The history of local anesthetic drugs. Curr. Top. Med. Chem., 1: 175-182.
PubMed  |  Direct Link  |  

Schymik, F.A., E.M.L. Smith and T.V. Lewis, 2015. Parental analgesic knowledge and decision making for children with and without obstructive sleep apnea after tonsillectomy and adenoidectomy. Pain Manage. Nurs., 16: 881-889.
CrossRef  |  Direct Link  |  

Togal, T., S. Demirbilek, A. Koroglu, E. Yapici and O. Ersoy, 2004. Effects of S (+) ketamine added to bupivacaine for spinal anaesthesia for prostate surgery in elderly patients. Eur. J. Anaesthesiology, 21: 193-197.
PubMed  |  

Umuroglu, T., Z. Eti, H. Ciftci and F.Y. Gogus, 2004. Analgesia for adenotonsillectomy in children: a comparison of morphine, ketamine and tramadol. Paediatr. Anaesth., 14: 568-573.
CrossRef  |  

Wolfe, J.W. and J.F. Butterworth, 2011. Local anesthetic systemic toxicity: Update on mechanisms and treatment. Curr. Opin. Anesthesiology, 24: 561-566.
CrossRef  |  Direct Link  |