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Wahdan, A. S., A. A. Al-Madawi, K. A. El-Shafey, and S. H. Othman, "Comparison of intermittent versus continuous infusion of 3% hypertonic saline on intracranial pressure in traumatic brain injury using ultrasound assessment of optic nerve sheath", EGYPTIAN JOURNAL OF ANAESTHESIA, vol. 38, issue 1, pp. 291-299, 2022.
Wahdan, A. S., A. K. Salama, M. A. F. Farag, and A. A. Moussa, "Evaluation of magnesium sulphate in combination with dexmedetomidine as adjuvants to levobupivacaine in ultrasound-guided spermatic cord block: a randomized controlled trial", Anaesthesia, Pain & Intensive Care, vol. 26, issue 2, pp. 182-190, 2022.
Ibrahim, Y. S. E. - D., M. M. Mohamed, N. Y. Helmy, M. Y. Mohammad, A. F. Shedid, and A. S. Wahdan, "Use of Point-of-care upper airway ultrasound during preanesthetic airway assessment to predict difficult intubation in adult patients with obesity", Perioperative Care and Operating Room Management, vol. 27, pp. 100257, 2022.
Wahdan, A. S., M. M. Mohammed, T. A. Radwan, A. A. Mohamed, and A. K. Salama, "Effect of bilateral ultrasound-guided erector spinae blocks on postoperative pain and opioid use after lumbar spine surgery: A prospective randomized controlled trial", Egyptian Journal of Anaesthesia, vol. 37, issue 1, pp. 100-106, 2021.
Wahdan, A. S., M. M. Mohamed, N. Y. Helmy, G. H. Shehata, and A. K. Salama, "Effects of Low-Dose Ketamine Infusion on Alleviating the Opioid Burden for Patients Undergoing Myomectomy Surgery.", Turkish journal of anaesthesiology and reanimation, vol. 49, issue 1, pp. 52-57, 2021. Abstract

Objective: Recent research has focused on the use of N-methyl-D-aspartate (NMDA) receptor antagonists for pain management. Several drugs are known to have this action, including ketamine, which exerts its main analgesic effect through NMDA receptor antagonism. This study aimed to evaluate the effect of low-dose ketamine infusion on opioid exposure for patients undergoing myomectomy surgery under general anaesthesia.

Methods: A total of 70 women were included in this prospective double-blind trial study. The patients included in this study were American Society of Anaesthesiologists physical status I-II, aged between 18 and 50 years and scheduled for laparotomy myomectomy surgery. Patients were randomised to receive either a bolus of 0.2 mg kg of ketamine followed by a continuous infusion of 0.2 mg kg hr during the operation or a placebo of normal saline. Both groups also received morphine as needed for pain relief. The primary outcome was the total amount of morphine used during the intraoperative and postoperative periods. Intraoperative and postoperative mean blood pressure, heart rate and postoperative visual analogue scale for pain were assessed.

Results: Total mean morphine consumption was significantly lower in the ketamine group than in the control group (26±3.5 mg vs. 34.7±3.3 mg, respectively, p<0.05). However, there were no statistical differences between the groups regarding haemodynamics, postoperative pain score and complications.

Conclusion: The use of ketamine in low infusion doses intraoperatively during an elective myomectomy procedure produced an opioid-sparing effect by reducing perioperative morphine consumption without significant side effects.

Wahdan, A. S., N. A. R. Elrefai, S. H. Omar, S. A. Abdel Moneem, M. M. Mohamed, and M. M. Hussien, "Endotracheal intubation in patients undergoing open abdominal surgery in the lateral position: a comparison between intubating video stylet and fiberoptic intubating bronchoscopy.", Korean journal of anesthesiology, 2021. Abstract

Background: We compared elective endotracheal intubation in lateral decubitus position using a video stylet device with fiberoptic bronchoscope device in patients undergoing laparotomy abdominal surgery.

Methods: Overall, 50 patients were enrolled in this prospective, randomised study. They were randomly classified into either video stylet (VS) intubation group or fiberoptic (FO) intubating bronchoscope group. After anaesthesia induction, patients were placed in lateral decubitus position, and a single investigator well versed in the use of the VS and FO bronchoscope performed the intubation. The primary outcome was the time taken for intubation. Secondary outcomes included intubation success rate, hemodynamic response at specific time points, overall user satisfaction and perioperative complications.

Results: The average time taken for intubation was significantly lower in the VS group than that in the FO group, with values of 39.5 ± 10 and 75.6 ± 16.2 s, respectively (P < 0.001). Incidence of successful first attempt intubation in the VS group was 88% vs. 100% in the FO group, which was statistically not different. There was a negligible difference in complications between the groups except sore throat, which showed a higher incidence in the VS group than that in the FO group (P = 0.013).

Conclusions: In laterally positioned patients, elective endotracheal intubation with VS provides less intubation time and incidence of success rate for a single intubation trial [88%]; however, its use is accompanied by a significant increase in hemodynamic response after intubation and an increased incidence of sore throat.

Ali, H., A. A. Ismail, and A. S. Wahdan, "Low-Dose Ketamine Infusion Versus Morphine Infusion During Abdominoplasty to Change the Postoperative Pain Profile", Anesth Pain Med. , vol. 10, issue 6, pp. e108469, 2020.
Amr S. Wahdan, Ahmed I. Elsakka, Amira H. Refaie, M. M. Mohamed, and N. Y. Helmy, "Epidural levobupivacaine versus a combination of levobupivacaine and dexamethasone in patients receiving epidural analgesia", Journal of Anaesthesiology Clinical Pharmacology, 2018.
Abdelfattah Farag, Osama Mosbah, N. N., S. E. - S. Ahmed Moussa, Sameh Abouzeid, and A. Wahdan, "Sexual Dysfunction in Nondiabetic Hemodialysis Patients", Der Pharma Chemica, , vol. 9, issue 8, pp. 13-20, 2017. sexual-dysfunction-in-nondiabetic-hemodialysis-patients.pdf
Mostafa, G., A. A.Badawy, A. Elsakka, and A. Wahdan, "Does tramadol or bupivacaine intraincisional infilteration during hernioplasty change postoperative pain profile?", Ain shams journal of anesthesiology , 2015. asja_corrected126.doc