REFERENCES
- Proudfoot J. Analgesia, anesthesia, and conscious sedation. Emerg Med Clin North Am. 1995;13(2):357–379.
- Carstensen M, M??ller AM. Adding ketamine to morphine for intravenous patient-controlled analgesia for acute postoperative pain: a qualitative review of randomized trials. Br J Anaesthesia. 2010;104(4):401–406.
- Nygren J, Thacker J, Carli F, et al. Guidelines for perioperative care in elective rectal/pelvic surgery: enhanced recovery after surgery (ERAS??) society recommendations. Clin Nutr. 2012;31(6):801–816.
- Fard MF, Moradan S, Ghorbani R, et al. Comparison of spinal anesthesia with pethidine and epidural anesthesia with bupivacaine in pain relief of labor: a clinical trial. Iran J Obstet Gynecol Infertil. 2014;17(97):1–7.
- Vahabi S, Nadri S, Izadi F. The effects of gabapentin on severity of post spinal anesthesia headache. Pak J Pharm. Sci. 2014;27(5):1203–1207.
- Gerbershagen H, Aduckathil S, van Wijck A, et al. Pain intensity on the first day after surgery: a prospective cohort study comparing 179 surgical procedures. Anesthesiology. 2013;118(4):934–944.
- Sneider EB, Maykel Ja. Diagnosis and management of symptomatic hemorrhoids. Surg Clin North Am. 2010;90(1):17–32, Table of Contents.
- Spreng UJ, Dahl V, Ræder J. Effects of perioperative S (+) ketamine infusion added to multimodal analgesia in patients undergoing ambulatory haemorrhoidectomy. Scand J Pain. 2010;1(2):100–105.
- Vahabi S, Heidari M, Ahmadinejad M, et al. Comparison of local anesthetic effects of tramadol and lidocaine used subcutaneously in minor surgeries with local anesthesia. Middle East J Anesthesiol. 2011;21(1):9–14.
- Polat F, Tuncel A, Balci M, et al. Comparison of local anesthetic effects of lidocaine versus tramadol and effect of child anxiety on pain level in circumcision procedure. J Pediatr Urol. 2013;9(5):670–674.
- Altomare DF, Giannini I. Pharmacological treatment of hemorrhoids: a narrative review. Expert Opin Pharmacother. 2013;14(17):2343–2349.
- Abo-hashem AA, Sarhan A, Aly AM. Harmonic Scalpel compared with bipolar electro-cautery hemorrhoidectomy: A randomized controlled trial. Int J Surg. 2010;8(3):243–247.
- Filingeri V, Gravante G, Overton J, et al. Ferguson hemorrhoidectomy with radiofrequency versus classic diathermy. J Investigative Surg : Off J Acad Surgical Res. 2010;23(3):170–4.
- Imbelloni LE, Vieira EM, Gouveia MA, et al. Pudendal block with bupivacaine for postoperative pain relief. Dis. Colon Rectum. 2007;50(10):1656–1661.
- Rajabi M, Hosseinpour M, Jalalvand F, et al. Ischiorectal block with bupivacaine for post hemorrhoidectomy pain. Korean J Pain. 2012;25(2):89–93.
- Bansal P, Jain G. Control of shivering with clonidine, butorphanol, and tramadol under spinal anesthesia: A comparative study. Local Reg Anesth. 2011;4(1):29–34.
- Nyström PO, Derwinger K, and Gerjy R. Local perianal block for anal surgery. Tech. Coloproctol. 2004;8(1):23–26.
- Rahimi M, Kazemeini AR, Pourtabatabaei N, et al. Comparison of topical anesthetic cream (EMLA) and diclofenac suppository for pain relief after hemorrhoidectomy: A randomized clinical trial. Surg Today. 2012;42(12):1201–1205.