Comparison of Fentanyl, Ketamine, and Lidocaine Combined with Propofol Anesthesia in Patients with Crohn Disease Undergoing Colonoscopy.

BACKGROUND Colonoscopy is the predominant invasive procedure for Crohn disease (CD) patients. Opioids and propofol carry risks of respiratory and cardiovascular complications. This study aimed to evaluate whether substituting fentanyl with ketamine or lidocaine could diminish propofol usage and minimize adverse events. MATERIAL AND METHODS In total, 146 patients with CD scheduled for elective colonoscopy were assigned to anesthesia with fentanyl (n=47), ketamine (n=47), or lidocaine (n=55). Propofol was administered to achieve sufficient anesthesia. Measured outcomes in each group included propofol consumption, hypotension and desaturation incidents, adverse event types, consciousness recovery time, abdominal pain intensity, Aldrete scale, and Post Anaesthetic Discharge Scoring System (PADSS). RESULTS Patients administered fentanyl needed significantly more propofol (P=0.017) than those on ketamine, with lidocaine showing no notable difference (P=0.28). Desaturation was significantly less common in the ketamine and lidocaine groups than fentanyl group (P<0.001). The ketamine group experienced milder reductions in mean arterial (P=0.018) and systolic blood pressure (P<0.001). Recovery metrics (Aldrete and PADSS scores) were lower for fentanyl (P<0.001), although satisfaction and pain levels were consistent across all groups (P=0.797). Dizziness occurred less frequently with lidocaine than fentanyl (17.2%, P=0.018) and ketamine (15.1%, P=0.019), while metallic taste incidents were more prevalent in the lidocaine group (13.5%, P=0.04) than fentanyl group. CONCLUSIONS Using ketamine or lidocaine instead of fentanyl in anesthesia for colonoscopy in patients with CD significantly lowers propofol use, reduces desaturation events, maintains blood pressure more effectively, without increasing hypotension risk, and accelerates recovery, without negatively impacting adverse events or patient satisfaction.

Sugammadex - indications and clinical use.

Neuromuscular blocking agents are a substantial element of anaesthesia in almost every surgical field. Nevertheless, their use has been associated with rises in mortality and morbidity. Of importance are: the general health state of the patient, liver and renal function, metabolism and excretion, active metabolites, side effects of muscle relaxants and, above all, residual paralysis. Prophylaxis of insufficient block reversal consists of neuromuscular transmission monitoring using acceleromyography and pharmacologic reversal of blockade. An ideal antagonistic agent should be characterised by rapid and complete reversal of blockade, disregarding its depth and total dose of muscle relaxant, lack of side effects and 100% excretion. These criteria are met by cyclodextrine gamma - sugammadex. In contrast to anticholinergic agents, which enhance the acetylcholine amount in the postsynaptic part of the neuromuscular junction, sugammadex encapsulates myorelaxing agent removing it from the junction. Sugammadex binds specifically only muscle relaxants of aminosteroid structure. In this paper, we present the current understanding of the characteristics, dosing, indications and side effects of sugammadex.

Sedation in endoscopy: when and how.

Sedation for endoscopy provides comfort for the patient and better examination conditions for the endoscopist. The high costs of providing anaesthesia by specialists and the relative lack of specialist personnel in many countries have led to the wider introduction of sedation delivered by non-anaesthesiologists. Such sedation should be targeted for moderate levels of sedation; however, personnel should be able to avoid - and rescue patients from - deeper sedation levels. Several conditions have to be fulfilled to provide proper and safe non-anaesthesiologist sedation for endoscopy, especially when propofol is to be used. These conditions include formal training, supervision by anaesthesiology staff, and definition of standard operating procedures on the national as well as local levels.

The advantages of spinal anesthesia in total hip replacement.

This article briefly outlines the spinal anesthesia technique and its potential and benefits for orthopedic surgery. The basic techniques of spinal anesthesia are described. The authors attempt to prove that this method is the best anesthetic technique, if not the method of choice, for total hip replacement surgery.