Our clinical experiences in the earthquake victims who came to our university after the 2020 Aegean Sea earthquake during the COVID-19 pandemic.

BACKGROUND: Earthquakes are natural disasters that threaten human life and cause loss of life and property in a very short time. In our study, we aim to carry out the medical analysis of the earthquake victims who came to our hospital after the Earthquake in the Aegean Sea and to share our clinical experiences. METHODS: We retrospectively analyzed patients the medical data records of earthquake victims brought to our hospital or the injured who applied due to the Aegean Sea earthquake. Patients demographic data, their complaints and diagnoses, hour of admission, their clinical courses, hospital arrangements (admission, discharge, and transfer), time spent until the operation, anesthesia methods, surgical intervantions, intensive care needs, crush syndrome, presence of acute renal failure, number of dialysis, mortality, and mor-bidity were reviewed. RESULTS: A total of 152 patients were brought to our hospital due to the earthquake. The most intense period of admission to the emergency department was the 1st 24-36 h. Mortality rate was found to be higher depending on the increase of age. While the most common cause of admission for the mortal earthquake survivors was to be trapped in the wreckage, the survivors applied for other reasons as well such as falling down. The most common type of fracture observed in survivors was the lower extremity fractures. CONCLUSION: Epidemiological studies can make an important contribution to the management and organization of the future earthquake-related injuries by healthcare institutions.

The Effects of Different Pressure Pneumoperitoneum Models Created By Standard or Heated-Humidified CO2 Insufflation on Ovary and Peritoneum: an Experimental Study in Rats.

There is still controversy over whether structural and morphological changes can be observed in tissues depending on the carbon dioxide (CO2) nature or the applied intra-abdominal pressures (IAP). This study aimed to investigate the effects of different pressure or CO2 nature used for pneumoperitoneum in gynecological laparoscopic surgery on inflammation, DNA damage, oxidative stress, and histopathological changes in ovarian and peritoneal tissue. For this purpose, forty female rats were randomly divided into 6 groups and different pneumoperitoneum models were created in these groups. Rats in group other than control and sham groups received standard (CD) or heated-humidified CO2 (HH) insufflations at low (4 mmHg) or high pressure (8 mmHg). The ovary and peritoneum sections were evaluated microscopically for apoptotic index (API) and API scoring was calculated. Tissue and plasma interleukin-6 (IL-6), tumor necrotizing factor-alpha (TNF-α), anti-Mullerian hormone (AMH) and 8-hydroxydeoxyguanosine (8-OHdG) levels were analyzed with enzyme-linked immunosorbent assay (ELISA). The most severe changes occurred in the 8CD group microscopically, while the least severe changes occurred in the 4HH group. All histopathological parameters except for ovarian apoptotic index and peritoneal PCNA at low pressure were higher in the CD group. TNF-α and 8-OHdG levels were higher in the CD group at both low and high pressures. Standard CO2 caused more prominent histopathological changes at high pressures and systemic inflammation in both pressure groups. The least change between the experimental study groups in terms of histopathological and biochemical was observed in the low-pressure heated-humidified group.

The effects of CO2 pneumoperitoneum at different temperature and humidity on hemodynamic and respiratory parameters and postoperative pain in gynecological laparoscopic surgery: A prospective randomized controlled study.

BACKGROUND: It is recommended to heat and humidity CO2 in laparoscopic surgery to prevent postoperative pain and hypothermia but information about its effects on hemodynamic and respiratory parameters is limited. We aimed to investigate the effects of standard and heated-humidified CO2 on hemodynamic and respiratory parameters, body temperature and pain in healthy patients. METHODS: One hundred patients who underwent total laparoscopic hysterectomy for benign pathology were divided into two groups: Group CD (cold-dry) patients were administered standard CO2, while Group HH (heated-humidified) patients were administered 95% humidified insufflation at 37 °C. Hemodynamic and respiratory parameters, body temperature, pain score and blood count parameters were recorded. RESULTS: A total of 96 patients were included in the study, taken from the 100 patients. Group HH (n:47) had only higher systolic blood pressure at 75, mean blood pressure at 50 and 55 and a lower heart rate between 15 and 45 min (p:0.049, 0.037, 0.013 respectively). Pain score, morphine consumption, end-tidal CO2 and arterial blood gas values were not different between the groups, with only body temperature from 40 min and minimum value being significantly higher (at a difference of 0.86-1.04 °C) in Group HH. Postoperative leukocyte, neutrophil and NLR (neutrophil-leukocyte ratio) were found to be higher in this group (p < 0.05). CONCLUSION: It has been found that both standard and heated-humidified CO2do not constitute a problem in terms of hemodynamic and respiratory parameters in healthy patients. The heated-humidified CO2group had only a higher core body temperature and inflammatory response. TRIAL REGISTRATION: NCT04508387.

Did We Get Lost in Space A Step Away From 2020? Bibliometric Analysis of Turkish-Based Publications from 2008 to the Present in Science Citation Index and Citation Index-Expanded Indexed Journals in the Field of Anaesthesiology.

OBJECTIVE: Despite the rapid increase in economy and general scientific activities, it is thought that the same increase may not be seen in publication quality. We aimed at evaluating the current scientific performance of our country in the field of anaesthesiology in international journals with a high impact value from 2008 to the present. METHODS: The list of anaesthesiology journals in the Science Citation Index (SCI) and SCI-Expanded (SCI/SCI-E) index and the ISSN numbers were obtained. The studies published in these journals from Turkey and from 2007 to September 2018 were listed. The year of publication, subject, method and number of citations and the conducting institution of each study were recorded. Institutions with the highest publications and institutions with the highest number of citations were identified. RESULTS: A total of 3,486 articles were found. Of them, 583 (16.7%) publications were from Turkey. The highest number of publications was in 2018 (14.4%) and the lowest was in 2015 (5.3%). CONCLUSION: Although there seems to be a significant increase in the number of publications in recent years, the same increase is not reflected in the publication quality evaluation criteria and there is no increase in the number of prospective randomised controlled trials and citations.

Retrospective evaluation of anesthetic techniques in pregnant women with renal transplantation

Background/aim: The aim of this study was to evaluate anesthesia management in cesarean operation of pregnant women who underwent renal transplantation and the effects on postoperative renal function, retrospectively. Materials and methods: After obtaining the approval of the ethics committee of our hospital, the records of pregnant women who underwent kidney transplantation and cesarean section between 2007 and 2017 were retrospectively analyzed. The patients' demographic data, concomitant disease history, the treatment received, and type of anesthesia were retrospectively evaluated and recorded in the follow-up form. Results: It was found that a total of 47 women who underwent renal transplantation had 47 live births by cesarean section. The mean age of the pregnant women was 30 ± 5.34 years. The mean time between renal transplantation and conception was 95.34 ± 55.02 months. It was found that 14 (29%) of a total of 47 patients had their first pregnancy. The number of patients with a gravidity of 4 and above was 9 (19%). A total of 21 (44.7%) pregnant women had spontaneous miscarriage. Five (10.6%) patients were treated with curettage for therapeutic purposes. Twenty-two (46%) of the patients whose immunosuppressive therapy was continuing were treated with azathioprine, tacrolimus, and prednisolone. The mean gestational age of delivery was 36.5 ± 1.59 weeks. The rate of prepregnancy hypertension diagnosis was 25.5% (n = 12), while the rate of developing gestational hypertension was 21.3% (n = 10). Spinal anesthesia was administered to 42 (91%) of 47 patients who underwent cesarean section. In the preoperative period, the mean value of serum blood urea nitrogen was 62.88 ± 41.97 mg/dL and the mean serum creatinine level was 3.21 ± 6.17 mg/dL. In the postoperative period, these values were 44.4 ± 29.9 mg/dL and 1.91 ± 1.63 mg/dL, respectively. When the pre- and postoperative serum urea and creatinine levels were compared, they were found to be lower in the postoperative period. However, there was no statistically significant difference (P > 0.05). The mean weight of the newborns was determined as 2707.3 ± 501.5 g. While the number of newborns with a low birth weight (<2500 g) was 18 (38%), among them 3 (0.6%) were below 2000 g. It was found that 36.2% (n = 17) of the newborns required intensive care. None of the patients developed graft rejection. Conclusion: If there is no contraindication, regional anesthesia may be preferred in the first place for pregnant women with renal transplantation. We suggest that this method of anesthesia has some advantages in terms of maintaining postoperative renal function and higher Apgar scores in newborns with low birth weight.

The relationship between the Trendelenburg position and cerebral hypoxia inpatients who have undergone robot-assisted hysterectomy and prostatectomy

Background/aim: This study aimed to evaluate the relationship between the Trendelenburg position and cerebral hypoxia in robot-assisted hysterectomy and prostatectomy.Materials and methods: A standardized mini-mental state examination was administered to 50 patients enrolled in the study 1 h before and after surgery. Near infrared spectroscopy (NIRS) values and hemodynamic and respiratory parameters were recorded after induction of anesthesia (baseline) and once every 20 min in the Trendelenburg position and supine positions. The relationship between the development of cerebral desaturation and the patient's position was examined. Results: For all patients, the baseline mean cerebral oxygen saturation (RSO2) on the right and left were 70.5 ± 7.3% and 70.6 ± 6.7%, respectively. Right RSO2 values at 20 min and 60 min in the Trendelenburg position decreased significantly, but they increased at 120 min. A significant positive correlation was found between right RSO2 and EtCO2 in the supine period following surgery, and between left RSO2 and EtCO2 at 60 min in the Trendelenburg and supine positions. The relationship between NIRS values and cognitive dysfunction was not significant.Conclusion: We found that cerebral saturation decreases as age increases, and cerebral desaturation may occur owing to the Trendelenburg position. There was no correlation between patients? cognitive function and NIRS values.

[Incidence of chronic pain after ingunial hernia repair]. / Inguinal herni onarimi sonrasi kronik agri insidansi.

OBJECTIVES: The percentage of chronic pain in adults having inguinal hernia repair is 5-35%. Although this pain is thought to be related to some reasons, there is not an exact conclusion about this. In this study, the aim was to point out the incidence of chronic pain after inguinal hernia repair and determination of the risk factors. METHODS: Two hundred and four patients having inguinal hernia surgery between January 2011 and December 2012 were included into this study. The patients' pain was measured with VAS within 24 hours and at the third and the sixth month after surgery. The patients whose VAS was >3 three months after surgery were evaluated to have chronic pain. RESULTS: The incidence of pain continuing 3 months after surgery was 18.6% and 11.2% six months after surgery. 78.3% of the patients had already had pain before surgery, and in 28% of them, chronic pain had evolved. The measure of VAS within 24 hours postoperatively was found higher in patients who developed chronic pain (3.13 ± 1.12/1.71 ± 1.27). 5.2% of the patients had re-operation for reparation and chronic pain developed in all. Chronic pain was neuropathic in 48% of the patients, and its severity was moderate. CONCLUSION: The incidence of chronic pain after inguinal hernia repair was found %18, compatible with similar studies. Compared with other risk factors, preoperative pain, postoperative severe acute pain and reoperations were thought to be the most important risk factors for the development of chronic pain.

Single incision trans-umbilical total hysterectomy: robotic or laparoscopic?

OBJECTIVE: The aim of this study was to compare the early surgical outcomes in patients who underwent total hysterectomy with laparoendoscopic single-site surgery (LESS-TH) versus robotic single-site total hysterectomy (RSS-TH). METHODS: Twenty-four patients who underwent RSS-​TH and thirty-four patients who underwent LESS-TH were retrospectively evaluated. Patient characteristics, operation time, intraoperative data (conversions, complications, estimated blood loss, etc.) and postoperative pain scores were compared. RESULTS: The total operation time was significantly longer in the robotic surgery group, with a time of 98.5 vs. 86 min (p = 0.013), while vaginal closure time was significantly higher in the laparoscopic surgery group (p = 0.011). Intraoperative outcomes and postoperative pain scores were similar in the two groups. CONCLUSION: RSS-TH helps surgeons to overcome the technical disadvantages of LESS-TH, particularly vaginal cuff closure, ergonomics and instrument crowding and clashing. Early surgical outcomes are comparable in the two groups, and both techniques are safe and feasible.

The Evaluation of Applied Anaesthetic Techniques for Caesarean in Parturients with Cardiac Diseases: Retrospective Analysis.

OBJECTIVE: In this study, the effects of anaesthetic technique on mother and newborn were investigated in a retrospective analysis of parturients with cardiac diseases undergoing Caesarean section between 2006-2012. METHODS: Our hospital's medical information system records were analyzed, and we found 107 parturients with cardiac disease and were undergoing Caesarean section, and their demographic data and obstetric, anaesthetic, and neonatal record forms were inspected. RESULTS: Fifty-three (49.5%) pregnant women received general anaesthesia, and 54 (50.5%) received regional anaesthesia (34 spinal, 19 epidural and 1 CSE) (p=0.05). Week of pregnancy was lower for the group of general anaesthesia (p=0.007). Among cardiac parturients, valvular lesion rates were higher (75.7%). The relationship between existing cardiac disease and anaesthetic management was not significant (p=0.28). However, we determined that parturients with higher NYHA (New York Heart Association) classifications had higher general anaesthesia rates. (p=0.001). A rate of 39% of 74 NYHA I patients were undergoing general anaesthesia; this rate was 64% for NYHA II and 100% for NYHA III. The patients with cardiac surgery or medical treatment history had higher general anaesthesia rates (p=0.009). Although the general anaesthesia group newborn weights were lower (p=0.03), there was no difference between groups for APGAR scores. With regard to postoperative complications and hospital stay, the groups were similar. CONCLUSION: We determined that general and epidural rates in parturients with cardiac diseases were similar, general anaesthesia was preferred for parturients who had higher NYHA classifications and surgical or medical treatment history. We considered that general anaesthesia criteria should reduce the anaesthesia management of parturients with cardiac disease; epidural or CSE anaesthesia applications should increase according to the patient's physical state, haemodynamic parameters, and obstetric indications.

Factors affecting bilirubin levels during first 48 hours of life in healthy infants.

OBJECTIVE: To investigate the relationship of delivery type, maternal anesthesia, feeding modalities, and first feeding and meconium passage times with early bilirubin levels of healthy infants. METHODS: Cord, 24 hours' and 48 hours' total bilirubin levels were measured in 388 study infants. RESULTS: Infants born with cesarean section were fed later and more often had mixed feeding. First meconium passage was delayed with general anesthesia. Cord, 24 and 48 hours' bilirubin levels were not correlated with first feeding time, meconium passage time, mode of delivery, existence and type of anesthesia, and feeding modalities. Being in high intermediate risk zone at 72 hours of Bhutani's nomogram was only related to first feeding time and high cord bilirubin level. Late preterm infants were more frequently born with cesarean section and offered supplementary formula. Therefore, first meconium passage times and bilirubin levels were similar in the late preterm and term infants. CONCLUSIONS: Type of delivery or anesthesia, late prematurity, feeding modalities, and first meconium passage time were not related to early bilirubin levels in healthy neonates, but delayed first feeding and high cord bilirubin levels were related to be in higher risk zone for later hyperbilirubinemia.

Intraperitoneal ropivacaine or ropivacaine plus meperidine for laparoscopic gynecological procedures.

OBJECTIVES: Postoperative pain after laparoscopic surgery is less intense than after laparotomy and patients may benefit from an intraperitoneal injection of local anesthetic and opioids. We aimed to compare intraperitoneal 0.75% ropivacaine with 0.75% ropivacaine plus meperidine for postoperative analgesia in patients undergoing gynecologic laparoscopy. METHODS: At the end of gynecologic laparoscopy, in a double-blind, randomized manner, one of the following injections was given intraperitoneally. Patients were allocated into three groups: Patients in R Group (n=18) were given 0.75% ropivacaine 3 mg/kg in 200 mL saline; patients in RM Group (n=17) were given meperidine 50 mg plus 0.75% ropivacaine 3 mg/kg in 200 mL saline; patients in C Group (n=18) were given 200 mL saline through the trocars. All patients were given diclofenac sodium when they had pain (VAS 3) and 1 mg/kg meperidine i.v. was also given when pain persisted. RESULTS: The pain scores and analgesic requirements during the first postoperative hour were significantly lower in the RM Group than those in the R and C Groups. Beyond that time, the pain scores were similar in all groups and there were no differences in total analgesic requirement in 24 h between groups. The three groups were comparable for shoulder pain and side effects. CONCLUSION: The intraperitoneal infiltration of 0.75% ropivacaine plus meperidine reduced pain scores and analgesic requirement during the first one hour after gynecologic laparoscopy compared with the intraperitoneal infiltration of ropivacaine or saline.

Management of anesthesia for cesarean section in parturients with placenta previa with/without placenta accreta: a retrospective study.

OBJECTIVES: The aim of this retrospective study was to review placenta previa cases and determine the prognostic factors effective on morbidity and mortality and to evaluate the strategy of anesthetic management. MATERIAL AND METHODS: 65 women with placenta previa scheduled for elective or emergency cesarean sections from 2004 to 2009 were examined. Patient demographic data, surgery and obstetric characteristics, anesthetic techniques, blood transfusions, the values of hemoglobin and complications were recorded. RESULTS: Mostly general anesthesia was preferred in the parturients with placenta previa (86.2%, 56/65). 9 patients (13.8%), 2 of whom were converted to general anesthesia due to bleeding and prolonged surgery received regional anesthesia. 37 of 65 women (56.9%) with placenta previa had had cesarean sections previously. More than half of these patients (21/37, 56.7%) had abnormally invasive placentation and 16 of 21 cases underwent cesarean hysterectomy. The incidence of complications in women with previous cesarean section with abnormally invasive placentation was higher than in the other women (p < .0001). Three patients were transferred to the intensive care unit; 2 were intubated and mechanical ventilation was applied, and 1 died of hemorrhage. CONCLUSIONS: Anesthetic management is important for parturients with placenta previa who had previous cesarean section or abnormally invasive placentation. We found that general anesthesia was our method of preference for placenta previa as we wished to avoid the risk of bleeding. However, regional anesthesia can be safe in patients lacking any abnormally invasive placentation.

The effects of morphine and fentanyl alone or in combination added to intrathecal bupivacaine in spinal anesthesia for cesarean section.

OBJECTIVES: This randomized double-blind controlled trial examined the effects of fentanyl and morphine, alone and in combination, as adjuncts to spinal anesthesia for elective cesarean section. METHODS: Sixty women undergoing elective cesarean section, with spinal anesthesia using 0.5% hyperbaric bupivacaine, were randomly allocated to receive morphine 0.2 mg, fentanyl 25 µg, or fentanyl 12.5 µg plus morphine 0.1 mg, intrathecally. The start of spinal block, the time to T10 level, the highest sensorial and motor block level, time to regression of sensory block to T10, time to resolution of motor block, surgical characteristics, maternal side effects, Apgar and NACS scores, umbilical blood gas evaluations, and time to first analgesic requirement were recorded. RESULTS: No patient experienced pain during the intraoperative period. The degree and time of sensorial and motor block were similar in both groups, and there was no difference in time to T10 level and time to reversal of motor block. The difference in time to first postoperative analgesic requirement was statistically significant. There was no difference between groups in postoperative side effects. There were no neonatal differences in Apgar and NACS scores or umbilical blood gas evaluations. CONCLUSION: The quality of postoperative analgesia with morphine, when used alone, was found to be superior to that with fentanyl. The combination of opioids offered no advantages over morphine alone.

A randomized comparison of different doses of intrathecal levobupivacaine combined with fentanyl for elective cesarean section: prospective, double-blinded study.

PURPOSE: Levobupivacaine may produce a sensory and motor block different from that produced by bupivacaine, which is the most popular local anesthetic in parturients undergoing cesarean section. The aim of this study was to investigate the block characteristics, the clinical efficacy, surgeon and patient satisfaction, and hemodynamic effects of using different doses of intrathecal plain levobupivacaine combined with fentanyl. METHODS: One hundred twenty women undergoing elective cesarean section with a combined spinal-epidural technique were enrolled. The parturients were randomly assigned to receive one of the following: levobupivacaine 5 mg (group 5), 7.5 mg (group 7.5) or 10 mg (group 10), all combined with fentanyl 25, 15 or 10 µg, respectively. RESULTS: Anesthesia was effective in 60, 82.5 and 100% of the patients in the levobupivacaine 5, 7.5 and 10 mg groups, respectively. Levobupivacaine 10 mg provided longer durations of analgesia and motor block and greater patient and surgeon satisfaction, although the incidence of hypotension was lower in groups 5 and 7.5 than in group 10 (12.5, 17.5 and 42.5%, respectively). Intraoperative epidural supplementation was higher in group 5 than in group 7.5 (40 and 17.5%, respectively), whereas no patients in group 10 were given an epidural bolus dose. CONCLUSIONS: The incidence of hypotension was higher in the levobupivacaine 10 mg group, even though this group presented more effective anesthesia and greater patient and surgeon satisfaction compared with the levobupivacaine 5 and 7.5 mg groups. As a result, we believe that levobupivacaine 7.5 mg combined with fentanyl 15 µg is suitable for combined spinal-epidural anesthesia in elective cesarean section.

[Comparison of the maternal and neonatal effects of combined spinal-epidural block and spinal block for cesarean section]. / Sezaryen operasyonlarinda kombine spinal epidural blok ile spinal blogun maternal ve neonatal etkilerinin karsilastirilmasi

OBJECTIVES: Combined spinal-epidural block (CSEB) has gained increasing interest as it combines the reliability of a spinal block (SB) and the flexibility of an epidural block in cesarean section. We investigated the maternal and fetal effect of CSEB against SB in cesarean operation. METHODS: Forty healthy, term pregnant women were randomized into two groups. Patients in the CSEB and SB groups were given 1.5 ml and 2.5 ml of 0.5% hyperbaric bupivacaine intrathecally, respectively. If sensorial block did not reach T4 within 10 min, supplemental bupivacaine was injected epidurally 2 ml per unblocked segment in the CSEB group. The quality and side effects of surgical anesthesia, hemodynamic parameters, Apgar scores, neurological and adaptive capacity score (NACS) and postoperative duration of pain were compared between the two groups. RESULTS: The time for the block to reach the T4 level was significantly lower in the SB group (p<0.05). More patients in the SB group achieved complete motor blockade sooner than in the CSEB group (p<0.05). Mean arterial pressure was lower in the SB group (p<0.05). There were no significant differences between the groups with respect to Apgar scores, cord blood gases, NACS, and adverse effects such as nausea and vomiting. CONCLUSION: Both SB and CSEB provide good surgical analgesia for cesarean section. Maternal hypotension is a risk with both techniques, but it occurs earlier and is greater with SB. There is no difference in neonatal outcome, provided that maternal blood pressure is cautiously monitored and hypotension promptly treated.

Anesthetic management for cesarean delivery in a pregnant woman with polymyositis: A case report and review of literature.

INTRODUCTION: Polymyositis which is a rare disease both in general population and in pregnancy is systemic connective tissue disorder characterized by inflammation and degeneration of muscles. There is only a little information relating to the anesthetic management of a pregnant woman with polymyositis. CASE PRESENTATION: In this article, we present anesthetic management of urgent cesarean delivery of a 28-year-old parturient with polymyositis under epidural anesthesia who was diagnosed with polymyositis five years ago and has been treated regularly with different doses prednisolone since then. CONCLUSION: In a parturient with polymyositis, it should not be suggested general anesthesia due to risks including delayed recovery from muscle relaxation, aspiration pneumonitis, arrhythmias, cardiac failure, we consider that epidural anesthesia for cesarean section can be safely applied.

Anesthetic management of Guillain-Barré syndrome in pregnancy.

We report the case of a 23-year-old woman who was diagnosed with an axonal type of Guillain-Barré syndrome at 16 weeks' gestation. The patient had severe motor loss but she was treated effectively with intravenous immunoglobulin, and she underwent cesarean delivery with epidural anesthesia at full term.

[Has ketamine preemptive analgesic effect in patients undergoing abdominal hysterectomy?]. / Abdominal histerektomi operasyonlarinda ketaminin preemptif analjezik etkisi var mi?

The aim of this study was to determine if preemptive use of the NMDA receptor antogonist ketamine decreases postoperative pain in patients undergoing abdominal hystrectomy. A total of 60 patients admitted for total abdominal hysterectomy were included in this study after the approval of the ethic committee, and the patients were randomly classified into three groups. After standart general anaesthesia, before or after incision patients received bolus saline or ketamine. Group S received only saline while Group Kpre received ketamine 0.4 mg/kg before incision and saline after incision, and Group Kpost received saline before incision and 0.4 mg/kg ketamine after incision. Postoperatif analgesia was maintained with i.v. PCA morphine. Pain scores were assessed with Vizüal Analog Scale (VAS), Verbal Rating Scale (VRS) at 1., 2, 3., 4., 8., 12. ve 24. hours postoperatively. First analgesic requirement time, morphine consumption and side effects were recorded. There were no significant differences between groups with respect to VAS / VRS scores, the time for first analgesic dose, and morphine consumption ( p>0.05). Patients in Group S had significantly lower sedation scores than either of the ketamine treated groups ( p<0.05). In conclusion, a single dose of ketamin had no preemptive analgesic effect in patients undergoing abdominal hysterectomy, but further investigation is needed for different operation types and dose regimens.