ABSTRACT
Background and Objective: Due to the high cost of scavenging systems, it is rare to find them in use in the hospitals of developing countries. This study was designed to determine the efficacy of a modified scavenging system for isoflurane for use in the Philippines Material and Methods: A modified scavenging system was constructed using a 500 ml of beaker glass with 100 ml of tap water, the opening tightly sealed with styropore. A single anesthesia machine, gas analyzer and isoflurane vaporizer were used in this study. Oxygen flow was set at one liter per minute. The isoflurane vaporizer was set at 2.5 volume percent. A corrugated tube conveys wasted gas into the beaker and allows the gas to bubble through the tap water. Another tube conveys bubbled gas from the beaker to the atmosphere. As soon as there is no change for at least 15 seconds in the numeric value and graphical representation of the MAC and volume percent of isoflurane in the gas analyzer, the reading was recorded as MAC-O minute and volume percent-0 minute. This was repeated every 15 minutes thereafter in the inlet port and every five minute in exit port until 60 minutes Results: The mean MAC and volume percent of isoflurane at point A and B were 1.1 versus 0.938461538 and 1.3 versus 1.158974359, respectively (t-test p0.05). At point B, all observation was statistically lower than the baseline (t-test p0.05) Conclusion: The MAC and volume percent of isoflurane were statistically lower at point B from 0 observation time until 60 minute observation time using the modified scavenging system. (Author)
ABSTRACT
Purpose: To compare the efficacy and safety of Proparacaine 0.35%- Fentanyl 0.0015% solution and Lidocaine 2.8% - Fentanyl 0.0015% solution as topical anesthesia for pharmacoemulfification with intraocular lens implantation. Methods: A prospective randomized, triple- masked clinical study. Ninety six patients with senile cataract were divided into two treatment groups Proparacaine - fentanyl group (PF group) and the Lidocaine Fentanyl group (LF group). Volume of anesthetic required latency and duration of anesthesia were compared. Visual analog pain scale was used to assess intraoperative patient's pain. Preoperative patient anxiety; surgeons and anesthesiologists assessment of the operative condition were also determined. Slit-lamp biomicroscopy was done on the first day postoperatively. Unpaired students T- test and descriptive statistics were employed with level of significance at p<0.05. Results: Similar volume of the anesthetics was used in both groups. Mean latency period for the PF solution was 0.51 minutes +/-0.18 (SD) which was significantly shorter than the LF solution at 3.14 minutes +/- 1.09 (p<0.05). Mean duration of anesthetic effect of the PF group was significantly shorter at 33. 47 minutes +/-4.57 while the LF group lasted 69.09 minutes +/- 16.20 9p<0.05). Majority of the patients in both groups [44 (905) PF group; 40 (85%) LF group] denied any pain or discomfort during surgery. Mean pain score was 0.16 PF group and 0.23 for the LF group. The surgeon noted optimal operative conditions while the anesthesiologist reported significant difference in patients response during surgery with hand squeezing noted in 7 (15%) patients in the LF group 9p<0.05%). There was no significant difference in biomicroscopic findings on day 1 postoperatively. Conclusion: Proparacaine 0.035% - fentanyl 0.0015% solution is as effective and as safe as lidocaine 2.8% - fentanyl 0.0015% solution for topical anesthesia in phacoemulsification with intraocular lens implantation.
Subject(s)
Humans , Fentanyl , Lidocaine , Phacoemulsification , Microscopy, Acoustic , AnesthesiaABSTRACT
The objective of this case study is to present the anesthetic consideration of a patient with DIC for 'E' hysterotomy and the role of hemotherapy and its possible complications.