فهرست مطالب farhad etezadi

Pulmonary embolism can cause cardiac arrest. Fibrinolytic therapy and surgical embolectomy can be used to manage it. This case report presents the clinical course of a patient who experienced intraoperative cardiac arrest resulting from massive pulmonary embolism. The patient encountered three instances of cardiac arrest requiring 35 minutes of cardiopulmonary resuscitation. Subsequent treatment involved the administration of reteplase, a thrombolytic agent. Following resuscitation, the patient developed multiple organ dysfunction in the intensive care unit, necessitating the use of diverse medications. Successful resolution of organ dysfunction led to the patient's transfer to the neurosurgery department. This case highlights the complexities involved in managing pulmonary embolism-induced cardiac arrest and subsequent multiorgan dysfunction, emphasizing the significance of a multidisciplinary approach in the comprehensive care and treatment of these patients.

The recently developed blade design of the Sanyar® video laryngoscope yields an exceptionally precise visualization of the larynx, thereby easing the process of tracheal intubation.

A non-inferiority clinical investigation, to assess the efficacy of the Sanyar® as compared to the Macintosh® direct laryngoscope for nasotracheal intubation in the context of maxillofacial surgeries.

78 patients for maxillofacial surgery were divided randomly into two groups and intubated through the nose using either the Sanyar® or Macintosh® laryngoscope after anesthesia was induced. The study measured intubation time and secondary objectives included success rate, attempts, and hemodynamic changes in two groups.

40 eligible patients in the Sanyar® and 38 in the Macintosh® group were involved. Of all, 42(53.8%) were men and 36(46.2%) were women. The average age of patients in the Sanyar® and Mackintosh groups was (31.62±13.41) and (30.81±10.89), respectively. 39(98%) of the Sanyar® group and 33(86%) of the Macintosh® group had successful laryngoscopy and intubation, with a P-value<0.034. Sanyar® group had a significantly shorter intubation time than Macintosh® (P-value<0.001). Hemodynamic changes before and after laryngoscopy and intubation had no significant differences between the two groups.

The Sanyar® video laryngoscope reduced the time of nasal tracheal intubation in maxillofacial surgery compared to direct laryngoscopy and improved the success rate of the first intubation attempt.

This randomized clinical trial aimed to assess and compare patient satisfaction and sedation outcomes in bronchoscopy procedures using two distinct sedation protocols: fentanyl/chlorpheniramine (FC) and ketamine/chlorpheniramine (KC).Ninety patients undergoing simple bronchoscopy and bronchoalveolar lavage were randomly assigned to receive either FC (1μg/kg fentanyl and 10 mg chlorpheniramine) or KC (0.5mg/kg ketamine and 10 mg chlorpheniramine). Lidocaine was also administered during bronchoscopy. Primary outcomes included patient satisfaction scores, while secondary outcomes encompassed sedation levels, bronchoscopist satisfaction, cough rates, lidocaine usage, and physiological parameters.Patients in the FC group exhibited significantly higher satisfaction levels compared to the KC group (P=0.002). Bronchoscopist satisfaction was also superior in the FC group (P=0.001). Although cough rates did not differ significantly, severe persistent coughs were more prevalent in the KC group. Physiological parameters such as oxygen saturation were comparable, but the KC group demonstrated higher increases in systolic blood pressure and heart rate.The use of fentanyl/chlorpheniramine resulted in higher patient and bronchoscopist satisfaction during simple bronchoscopy and bronchoalveolar lavage compared to ketamine/chlorpheniramine. This study suggests that the combination of fentanyl and chlorpheniramine may be a preferable sedation choice for bronchoscopy procedures.

In craniotomy surgery, it is important to maintain hemodynamics and prevent the increase of intracranial pressure. Using semi-invasive methods such as LiDCO monitoring is a good option in this situation. This study aimed to evaluate the effectiveness of mannitol and hypertonic sodium on hemodynamic parameters in patients undergoing elective craniotomy.This randomized clinical trial was done on 40 patients of both genders. Patients whose ages were between18-65 years, who had American Society of Anesthesiologists (ASA) score I and II, and who underwent craniotomy surgery were eligible for this study.Participants were divided into two groups receiving hypertonic sodium and mannitol.Hemodynamic parameters were evaluated before surgery, 20 minutes, and 60 minutes after surgery in both groups, under Lithium dilution cardiac output (LiDCO) monitoring.The results showed that there was no difference between groups in terms of the average fluid intake, the duration of the operation, the amount of urinary output, and the primary hemodynamic characteristics. Significant differences were recorded in the evaluation of hemodynamic parameters. The results demonstrated a reduction in systolic, diastolic, and mean arterial blood pressure during 20 to 60 minutes after mannitol injection compared to hypertonic sodium injection. Additionally, the effectiveness of both therapies on maintaining cardiac function was similar, but the use of mannitol led to a greater decrease in arterial and peripheral vascular resistance.It can be concluded that mannitol may be more effective than hypertonic sodium during craniotomy procedures in terms of reducing blood pressure monitored with LiDCO.

Upper airway management in morbid obese patients undergoing bariatric surgery is a major challenge during induction of anesthesia. Bed side Thyromental Height Test (TMHT) is an easy and valid predictor for prediction of difficult airway in non‑obese patients, but its precision in morbid obese patients haven’t been evaluated yet. The purpose of present study is to find the accuracy of TMHT for the prediction of difficult laryngoscopy in morbid obese patients undergoing bariatric surgery. The present prospective observational study was performed on 95 morbid obese patients at Sina hospital during 2020. Preoperative exams of patients include the assessment of Mallampati classification, thyromental height, thyromental, sternomental and interincisor distances. After induction of anesthesia, the laryngoscopy view was evaluated using the Cormack Lehane classification, and the relationship between these tests to prediction of difficult laryngoscopy view based on the Cormack Lehane degrees (grades 3,4) were evaluated. A total of 95 morbid obese patients with a mean BMI of 44.7±5.6 kg/m2.were included in the study. 67.3% of them were women. The incidence of difficult laryngoscopy (C & L III, IV) was 16.8%. TMHT less than 56.5 mm, with 98% positive predictive value and 93% accuracy was the best predictor of difficult intubation in these patients. The accuracy of thyromental, sternomental and interincisor distance, with cut off value less than 51.5 mm, 89.5 mm, 41.5 mm respectively was less than TMHT in prediction of difficult laryngoscopy in morbid obese patients. In morbid obese patients with a BMI greater than 40, thyromental height less than 56.5 mm with 98% positive predictive value and 93% accuracy is the best predictor for difficult laryngoscopy view.

Cytokine storm in severe Covid-19 disease is one of the leading causes of death in these patients. Hemoperfusion is a method used to purify the blood from toxins and inflammatory factors. The aim of this study was to evaluate the effect of hemoperfusion on mortality and morbidity in patients with severe Covid - 19 disease.

This was a retrospective study which performed by reviewing the files of 30 patients with severe Covid-19 disease referred to Sina Hospital affiliated to Tehran University of Medical Sciences in 2020. Thirty patients with severe covid-19 disease and positive PCR participated in the study. All patients received routine treatment protocol for covid-19. Hemoperfusion was used for 15 patients in addition to receiving routine care. The remaining 15 patients were included in the control group. Patients in the hemoperfusion group underwent four sessions of hemoperfusion using continuous renal replacement therapy with continuous venovenous hemofiltration.

the ICU length of stay in the control and hemoperfusion groups was 3.40 ± 11.40 and 9.65 ± 16.33 days, respectively (P= 0.075). 8 patients died and 7 patients were discharged in the control group, but 11 patients died and 4 patients were discharged in the hemoperfusion group (P= 0.256). The respiratory rate of patients in the control and hemoperfusion groups decreased from 7.43 ± 29.40 to 4.03 ± 24.60 and from 6.11 ± 31.60 to 5.04 ± 24.46, respectively (P < 0.001). The percentage of arterial blood oxygen saturation in the control and hemoperfusion groups increased from 90.86 ± 5.61 to 93.06 30 4.30 and from 92.33 26 3.26 to 92.06 31 5.31, respectively (P= 0.456).

Hemoperfusion could not prevent the mortality of patients and finally out of 15 patients, 11 patients died and 4 patients were discharged. Also, no significant difference was observed between the two groups in terms of arterial blood oxygen saturation.

SANYAR® video laryngoscope (S-VL) is a new video laryngoscope. We conducted a comparative clinical study to assess its ability to provide laryngeal exposure and facilitate endotrachetal intubation (ETI) in adult patients. 

This comparison clinical study was conducted on adult patients undergoing elective general anesthesia. The patients were randomly divided into two groups of direct laryngoscopy (DL) or S-VL. The primary outcome was the time required for performing ETI. The glottic view and successful ETI on the first attempt was also compared between the two groups. 

Full and partial glottic visualization was achieved in 100% of the patients in the S-VL group, while the corresponding figure in the DL group was 90%. Cormack-Lehane III was observed in 5 patients of the DL group, and ETI was successfully carried out with S-VL. The first-pass success rate of ETI was significantly higher in S-VL group compared to the DL group (94% vs. 78%; P = 0.034). The mean times to ETI were 38.32±6.4 and 35.31±8.4 seconds in DL and S-VL groups, respectively (P = 0.650). 

During ETI for general anesthesia, SANYAR® video laryngoscope compared with direct laryngoscopy improved glottic visualization and first-pass ETI rate.

Training of airway management and tracheal intubation skill in emergencies for resuscitation of patients are basic skills for medical students. However, the success rate of beginners in this skill is low. Video laryngoscopes are new devices that can increase the success of endotracheal intubation training.

This clinical trial was conducted with 30 medical students who came to learn anesthesia care at Sina Hospital in 2020. After dividing the students into two groups (n=15) of glide scope and Macintosh, the glide scope group first performed laryngoscopy and tracheal intubation with a glide scope on the manikin 10 times. Then, in the operating room they were trained for endotracheal intubation on 5 patients by glide scope. The Macintosh group first got trained for intubation on the manikin, 10 times and then on five patients in the operating room with a Macintosh laryngoscope. Then all students in the operating room intubated two patients with a Macintosh laryngoscope and their performance was assessed and scored by an anesthesiologist. They evaluated the training course with a questionnaire. The duration of laryngeal access and the time spent for tracheal intubation were compared in the two groups.

In the glide scope group, 76% of students were able to see the epiglottis and larynx in 20 seconds, but in the Macintosh group, 43% of students were able to see the larynx in 20 seconds. In terms of endotracheal intubation time, 72% of the students in the glide scope group were able to successfully perform endotracheal intubation within 40 seconds in their first attempt, but in the Macintosh group, 44% completed endotracheal intubation within 40 seconds (P=0.00). In the evaluation of the quality of skill, the average score of the students in the Macintosh group was 15.30±0.56, while the average score in the glide scope group was 17.20±0.83 (P=0.00). The scores and satisfaction of the students in the glide scope group were higher than the Macintosh.

The use of video laryngoscope in teaching of intubation in trainees will increase the speed, and accuracy of their training and satisfaction compared with the Macintosh laryngoscope.

One of the most common problems after spine surgery is very severe pain that usually affects outcome of patients after surgery and duration of hospital stay. Acute postoperative pain has several mechanisms, and multimodal analgesia by different mechanism of action will help control to it. In this study, we intend to investigate the effect of intravenous diphenhydramine injection during induction of anesthesia and morphine before incision on the control of acute pain in postoperative laminectomy.

130 patients scheduled for spine surgeries were assigned to receive a single pre induction dose of diphenhydramine 0.4mg/kg IV (D group) and morphine 0.15mg/kg before incision in addition acetaminophen 1gr IV at the end of surgery and just morphine 0.15mg/kg and acetaminophen 1gr IV (C group) in a randomized, double-blind trial. Postoperative pain, analgesic requirements in recovery and 24 hr after surgery were assessed.

The mean pain intensity in recovery was lower in the diphenhydramine group than in the control group (MD, 2.13; 95% confidence interval (CI), 1.72–2.53; P < .0001) and the need for analgesia was much lower in the diphenhydramine group than in the control group. P < 0.001. The severity of pain and the need for analgesics in the diphenhydramine group had a significant decrease in the ward compared to the control group.

Prophylactic diphenhydramine 0.4 mg/kg at induction of general anesthesia in combination with morphin0.15mg/kg before incision and acetaminophen1gr at the end of surgery reduced the postoperative severity of acute pain and opioids requirement in the early postoperative period after spine surgeries.

 Remifentanil is an ultra-short-acting opioid which facilitates hemodynamic management. However, there are concerns about postoperative Remifentanil hyperalgesia because of its potent fast onset and offset.

 The aim of this study was to determine visual analog scale (VAS), postoperative pain, and morphine used in two groups after spine surgery.

 In this randomized clinical trial study, 60 patients aged 18 - 60 years old, according to the American Society of Anesthesiology (ASA) I - II, who underwent spinal canal stenosis or scoliosis surgery, were divided into two groups. In the control group, patients received 0.07 - 0.1 µg/kg/h intraoperative Fentanyl infusion, and in the intervention group 0.1 - 0.2 µg/kg/min remifentanil was infused during the surgery. Both groups received 15 mg/kg intravenous Acetaminophen 20 minutes before the end of the surgery. Postoperative pain score and morphine consumption were measured 6, 12, 24, and 48 hours after discharge from the post-anesthesia care unit (PACU).

 During the first 12 hours, VAS and morphine consumption were significantly higher in remifentanil group (P < 0.001). However, no significant difference was found between the two groups in morphine consumption 12 - 48 hours after surgery.

 These findings suggest that Remifentanil infusion during surgery may increase postoperative pain. Also, VAS and morphine consumption were higher during the first 12 hours.

- Ketamine and magnesium in brain act as an N-methyl-D-aspartate receptor antagonist that has been shown to be useful in the reduction of acute postoperative pain and analgesic consumption in a variety of surgical interventions. We hypothesized that combination of low dose ketamine and magnesium would reduce early postoperative opiate consumption and analgesic requirement after 6 weeks. This was a randomized, prospective, controlled-placebo trial involving elective and eligible patients undergoing lumbar spine surgery. Seventy patients in the treatment group were administered 0.5 mg/kg intravenous ketamine and 1 gram of magnesium as an intravenous bolus slowly during 3 minute before incision and 0.25 mg/kg/hr ketamine and 0,5 g/hr magnesium intravenous infusion during surgery. Seventy patients in the placebo group received saline of equivalent volume. Patients were observed for48 h postoperatively and followed up at 6 weeks. The primary outcome was 48h morphine consumption. The severity of pain was lower in the intervention group than in the placebo group during 48 hr post-operatively, morphine consumption in this group also decreased significantly during this period. Intraoperative ketamine-magnesium reduces opiate consumption in the 48-h postoperative period. This combination may also reduce pain intensity throughout the postoperative period in this patient population.

 Fentanyl-induced cough (FIC) is a known complication and many studies have been conducted to prevent it. The aim of this study was to evaluate the effectiveness of Diphenhydramine as an antihistamine in suppressing of FIC during induction of anesthesia.

In a prospective double-blind randomized controlled trial, a total of 100 patients, ASA Class I and II, scheduled for elective laparoscopy surgery were randomly assigned into two equally sized groups (n = 50). Diphenhydramine diluted with distil water as 10mg/ml. Then, patients in Group D, received diphenhydramine 30 mg (3ml) through peripheral IV line within 1 min and Group C received same volume normal saline 0.9% as placebo. Two min later, fentanyl 2 µg/kg was administered through the peripheral IV line within 5 sec in all patients. The occurrence and intensity of cough within 2 min after the fentanyl injection were observed and recorded by a resident who was blinded to the study groups. The frequency of PONV, analgesic requirement in recovery room and as a secondary outcome were recorded.

The incidences of FIC were 47% in control group and there is no any cough in the diphenhydramine group (P = 0.02). The frequency of PONV was also reduced in diphenhydramine group (16% vs 40%) and less number of patients in diphenhydramine group were needed to analgesia in recovery room (60% vs 82%)

Our study determines that diphenhydramine (30 mg, IV) bolus injection 2 min before fentanyl injection can prevent FIC and PONV and also reduce analgesic requirement in recovery room.

One of the complications of nitroglycerin infusion during surgery is methemoglobinemia. The aim of this study was to investigate the prevalence of methemoglobinemia and its association with nitroglycerin infusion for the treatment of hypertension during general anesthesia. Patients received nitroglycerin infusion at a dose of 2 μ/kg/min. The aim of controlling blood pressure was to set the blood pressure at 20% of the patient’s baseline. Then, the amount of methemoglobin was recorded at 15-minute intervals. Backward stepwise logistic regression test was used to determine the factors affecting methemoglobinemia. Based on the criterion of methemoglobin level above 2%, the prevalence of pathologic methemoglobinemia was 56.6%. After adjusting for confounding variables in the final model, the total prescribed dose was the only factor affecting pathologic methemoglobinemia. For the first time, we showed that more than half of the patients undergoing surgery suffered from methemoglobin level above 2% after prescribing nitroglycerin, and the only predictor of abnormal methemoglobin level was the rate of nitroglycerin prescription. Anesthesiologists are recommended to be more careful about the speed of nitroglycerin infusion, and if the patient needs higher doses, patient care for the early detection of methemoglobinemia should be the priority.

The aim of this study was to compare the effect of intra-rectal administration of lidocaine gel alone versus lidocaine gel plus topical fentanyl on pain reduction in prostate biopsy. In a double-blind randomized clinical trial, 96 patients who met the inclusion criteria were randomly assigned into two groups. 1) The treatment group: Lidocaine gel (2%) 50 g and 2) the intervention group: Lidocaine gel (2%) 50 g and fentanyl gel 50 µg. During the prostate biopsy, the VAS score was recorded. Blood pressure, heart rate, and patient level of consciousness were also analyzed. The mean VAS score was 5.1 ± 2 and 3.0 ± 2, which was lower in the intervention group (P value < 0.001). In terms of consciousness after biopsy, there was no difference between the two groups (P value = 0.358). There was no difference between the groups in terms of mean blood pressure and heart rate before and during the prostate biopsy. Finally, in terms of consciousness after the prostate biopsy, there was no difference between the current treatment and intervention groups. The combination of lidocaine gel and fentanyl with a dose of 50 µg has a significant effect on reducing the pain associated with prostate biopsy in comparison with lidocaine gel alone. The antinociceptive effect of the above regimens is not associated with hemodynamic changes and changes in patients' consciousness.

The intensity of low back pain and functional disability in life is a common question of patients before spinal anesthesia. We aimed to compare acute and chronic back pain after spinal anesthesia in midline and paramedian approach. Two hundred twenty patients elective patients (25-65 year old) candidates for general, and urological surgery under spinal anesthesia, were allocated into the following two groups: Group M (midline) and Group P (paramedian). Spinal anesthesia was performed with hyperbaric bupivacaine 0.5% in the sitting position using a 25G Quincke needle in L3/L4 orL4/L5 level. During the operation, patients were placed in the supine position. The questionnaire assessed back pain and severity of pain with VAS score three days after spinal anesthesia. If the patients complained of back pain then, the effect of back pain on quality of life and the degree of patient's functional disability were assessed by Oswestry Disability Index on,45 and 90 days after surgery. Forty-one patients (18%) had back pain after the operation, 22 patients were in the paramedian (54%) and 19 patients (46%) in the midline method of spinal anesthesia. (p=0.6). The mean intensity of back pain was 2.27vs1.45 (p=0.5) and the total number of mean functional disability index was less than five in both groups. The incidence of back pain was 18% and was not significantly different between the midline and paramedian methods. The severity of back pain decreased after three days, reaching to less than one on day the 45th and 90th, which does not affect daily patient’s functions.

Considering that a simple yet valid airway predictor is basically preferred to a multivariable test with the same level of validity, we designed a study to compare the validity indexes of the TMHT, as a single variable test, with that of Wilson, Arne, and Naguib tests.
270 consecutive ASA physical statues I and II patients aged ≥16 years, candidate to receive general anesthesia for elective surgeries, were enrolled in the study. All patients preoperatively were evaluated using four airway predictor tests including Wilson, Arne, Naguib, and Thyromental height test (TMHT). Cut-off points to predict a difficult laryngoscopy were extracted from previous published studies for each test. Based on each predictor, all patients were classified into either easy or difficult. Based on Cormack-lehane scoring system, as the gold standard, all patients during laryngoscopy were categorized into two groups of “easy, grades I, II” and “difficult, grades III, IV”. Finally, validity indexes for each test were calculated and compared to one another.
The incidence of difficult laryngoscopy according to Cormack-lehane grading was 17.4% (47/270). The predicted rates of difficult laryngoscopy were 47 (17.4%), 2 (0.7%), 10 (3.7%) and 61 (22.6%) for TMHT, Wilson, Arne and Naguib respectively. Based on Chi-square test, the TMHT as well as the Naguib could significantly predict difficult laryngoscopy. However, the highest rate of sensitivity, positive predictive value, negative predictive value, and accuracy belonged to TMHT.
Both TMHT and Naguib are acceptable predictors of difficult laryngoscopy while the TMHT is a more accurate predictor of difficult laryngoscopy than the other multivariable models.

Postoperative acute pain management after maxillofacial surgery due to severity of pain and limitations of opioids use in these patients is of particular importance. The aim of this study was to evaluate the analgesic effect of oral gabapentin and clonidine combination and opioids requirements after surgery.
This study was a randomized clinical trial (RCT) on 70 patients (18-55 yr old ASAI to II) undergoing various types of Orthognathic surgeries in Sina hospital affiliated to Tehran University of Medical Sciences, Tehran, Iran in 2016. The patients were randomly divided in two groups. Both groups received 1 gr (IV acetaminophen) 0.5 hour before the end of surgery. The control group received placebo and gabapentin/clonidine group received 300 mg gabapentin and clonidine 0.2mg orally 60 minutes before the induction of anesthesia. The pain severity score (assessed by VAS scale, the level of sedation (assessed by Sedation Agitation Scale), opioids requirement, nausea and vomiting were recorded in the post anesthesia care unit (PACU) 5 10, 20, 30 minutes and 3 hours after surgery. For rescue pain management intravenous morphine was administered.
Seventy patients were enrolled in this study. Gabapentin/ Clonidine increase extubation time (20.3±9.3min) (P Premedication of oral gabapentin/ Clonidine increases extubation time and sedation score in patients recovering from Orthognathic surgery and could reduce postoperative pain scores and opioids consumption in recovery room.

Ischemia reperfusion injury (IRI) is one of the main causes of delay graft function (DGF) in deceased-donor kidney transplantation (DDKT). Evidences suggest that hypertonic saline (HS) has beneficial effects on IRI. The objective of the present study is to determine the effect of intraoperative HS, on graft function and urinary biomarkers of interleukin 18 (IL-18) and neutrophil gelatinase-associated lipocalin (NGAL), in patients with DDKT. The design of the study is a randomized, open-label, pilot trial in patients with DDKT. The intervention of the study is administration of 4 mL/kg HS, 5% before graft reperfusion. The primary endpoint was DGF. Fifty-eight (58) adult patients were randomized (HS, n = 32; control, n = 26). There were no significant differences between the two groups in terms of recipient, donor, and transplant characteristics. The rate of DGF was 20% in the HS group compared with 31.8% in the control group (Relative risk 0.63; 95% CI 0.23–1.67; P = 0.36). Serial serum creatinine in the first two days after surgery in addition to urine volumes during the first day after transplantation was significantly different in the HS group (P ≤ 0.05). The urinary NGAL and IL-18 were significantly lower in HS vs. control, at 24 h after transplantation (P ≤ 0.05). The frequency of adverse reactions was similar between groups. This study did not show any significant benefits from HS administration immediately before allograft reperfusion in terms of reducing DGF, serum creatinine at hospital discharge or length of hospital stay in deceased-donor kidney transplant patients.

General anesthetic drugs produce extensive neuronal changes in the central nervous system by enhancing inhibitory and reducing excitatory neurotransmission. The major neurotransmitters, which are thought to play a role in anesthesia, are glutamate, serotonin, norepinephrine, dopamine, acetylcholine, and GABA. The knowledge of neurotransmitters and their receptors’ function is very important in perception of anesthesia in routines practice.
The purpose of this review article is to give an overview of the different types of neurotransmitters in CNS, classification of neurotransmitters and mechanism of action of various types of neurotransmitters and their receptors.

Aminophylline expedites the recovery from total intravenous and inhalation anesthesia.
The aim of this study was to evaluate low and high doses of aminophylline on extubation time, time to discharge from recovery, and the bispectral index score (BIS) in patients who received isoflurane anesthesia.
Patients and After ethical approval and informed consent were obtained, this prospective, randomized, blinded clinical study was conducted in Sina hospital in Iran. Seventy-five patients who were scheduled for elective laparatomy surgery under isoflurane anesthesia were randomly allocated to receive either saline or 1 or 5 mg/kg of aminophylline (n = 25 for each) at the end of their anesthesia. The time to tracheal extubation and BIS after the administration of the study drug and the total time required until discharge from the post anesthesia care unit (PACU) were recorded.
Seventy-five patients completed the study. Compared to saline, patients who received 1 and 5 mg/kg of aminophylline demonstrated decreased extubation times (mean ± SD) (12.26 ± 7.33 vs. 11.15 ± 8.62 and 10.4 ± 4.78 min, respectively, P = 0.001) with higher BIS values (P = 0.001). However, the recovery and discharge times from the PACU were no different between the aminophylline and saline groups.
The administration of high doses of aminophylline after laparatomy procedures with isoflurane anesthesia expedited the extubation time with no effects on discharge from the PACU.

Laparoscopic gastric plication (LGP) is a technique in the restrictive category of bariatric procedures that reduces the gastric volume. Nausea and vomiting are the most common complications after this procedure.
The goal of this research is to determine the preventive effective dose of promethazine on postoperative nausea and vomiting (PONV) after laparascopic gastric placation
After induction of general anesthesia the patients were divided into two groups, the promethazine 50mg group, which was given promethazine 50mg IM plus dexamethasone 8mg IV and the promethazine 25mg group, which was given promethazine 25mg IM plus dexamethasone 4mg IV. The primary endpoints were the incidence and intensity of nausea and vomiting, and severity of abdominal pain score in postoperative periods.
Sixty-four morbid obese patients were enrolled into the study. Promethazine50mg group was found to significantly reduce the incidence of PONV in the first 12hrs compared with the other group, (21.87% vs37.5%, P=0/068). At the same time the intensity of PONV in base of numeric rating scale was lower in promethazine 50mg group compared to another group (2.63±0.85 vs4.65± 1.23, P=0/089). The mean severity of abdominal pain was higher in promethazine 25mg group, thus these patients needed more analgesia in comparison with another group.
In morbidly obese patients undergoing laparoscopic gastric plication, prophylactive administration of dexamethasone8mg and promethazine 50mg was more effective in the first 12 hours after surgery in reducing the incidence of PONV, and severity of abdominal pain.

The goal of this study was to evaluate the impact of intubation skill training involving the use of mannequins on novice anesthesiology residents in a knowledge, attitudes, and practices designed study in which three different types of evaluation were implemented..
All first-year anesthesiology residents (24) of Sina Hospital, affiliated to the Tehran University of Medical Sciences, were invited to participate in an intubating skills training course. The program comprised two theoretical and three practical sessions, lasting a total of 16 hours over four days. Faculty assessment of residents’ practices was carried out using the questionnaire results, measured using a Likert scale, as the primary outcome. An improvement in the theoretical knowledge of the novice anesthesiology residents (using the Likert scale) and their attitudes towards the educational course in general (via a multiple choice question examination), were also evaluated..
The mean score following faculty assessment of the residents’ practical skills was 4.6 out of 5.0 (92%) [standard deviation (SD) of 0.13]. The mean score with respect to the attitudes of the residents was 4.8 out of 5.0 (96%) (SD of 0.16). The overall mean theoretical score of the residents improved significantly upon completion of the training program (P = 0.001)..
Our results suggest that the personnel in the five participating faculties were highly satisfied with the practical performance of the residents, who were found to hold good attitudes towards the program as a whole..

One of the issues in prostatectomy surgery is bleeding. Although tranexamic acid (TRA) is an antifibrinolytic agent for reducing bleeding, controversies surround its use..
In this study, the effect of local administration of TRA on reducing bleeding during prostatectomy surgery was evaluated..
A total of 186 patients who underwent prostatectomy surgery were assessed in this clinical trial study. Patients were divided randomly into two groups. After prostate removal, TRA (500 mg TRA with 5 mL total volume) to the intervention group and normal saline to the control group were sprayed with the same volume. At the end of surgery, the prescribed blood bags were measured and recorded. Hemoglobin and platelet levels were recorded 6 hours after the test. Moreover, the amounts of blood inside the blood bags in the first 24 hours, the second 24 hours, and the total length of hospital stay were recorded and compared in each group..
By comparing the measured values before and after surgery, we found that the amounts of hemoglobin, hematocrit, and platelet decreased. The mean blood loss in the intervention group was recorded at 340 mL and that in the control group was 515 mL. The maximum bleeding in the control group was almost twice as much as that in the intervention group. Blood loss in the intervention group with the administration of TRA was significantly lesser than that in the control group (P = 0.01). The decrease in platelet level in the intervention group was significantly lower than that in the control group (P = 0.03)..
The present study showed that local administration of TRA significantly reduces bleeding after prostatectomy surgery and is effective in preventing postoperative hemoglobin decrease..

Pain is an important consideration after renal surgery. A multimodal approach to postoperative pain management could enhance analgesia by risking fewer side effects after surgery..
The aim of this study was to evaluate the clinical efficacy of the subcutaneous infiltration of ketamine and tramadol at the incision site to reduce postoperative pain..
Sixty-four patients between 18 and 80 years old who were scheduled for elective renal surgery were enrolled in a double-blind randomized controlled study. At the end of the surgery, patients were divided into four groups with 16 patients in each group: the saline group, who were treated with 10 mL of saline solution; the K group, who were treated with 1 mg/kg etamine in 10 mL of saline solution; the T group, who were treated with 1 mg/kg tramadol in 10 mL of saline solution; and the K/T group, who were treated with 0.5 mg/kg ketamine with 0.5 mg/kg tramadol in 10 mL of saline solution. In each group, the solution was infiltrated subcutaneously at the incision site. The postoperative pain scores and rescue analgesic consumption of the patients in each group were recorded for 24 hours and compared. The primary goal of the study was to compare the results of patients treated with a combined ketamine and tramadol subcutaneous wound infiltration, patients treated with a tramadol subcutaneous wound infiltration, and patients treated with a ketamine subcutaneous wound infiltration..
Sixty-four patients were enrolled in the study. Pain intensity and cumulative meperidine consumption were significantly lower in the K/T group (27 mg; 95% confidence interval, 25.2 - 53.2) in comparison with the group that received a saline infusion during the first 24 hours after surgery (P The combined subcutaneous infiltration of ketamine and tramadol at the incision site produces better analgesia and an opioid-sparing effect during the first 24 hours when compared with the control group and the groups that received a subcutaneous infiltration of only ketamine or tramadol..

Delayed graft function is a main complication after deceased donor kidney transplantation that adversely affects graft outcome. Difficulties in prediction and early detection of delayed graft function have hindered the ability to perform proper therapeutic interventions. We investigated whether measuring urinary interleukin 18 and neutrophil gelatinase-associated lipocalin as markers of ischemia reperfusion injury could predict delayed graft function in deceased donor kidney transplant patients.
We studied 69 patients undergoing kidney transplantation from deceased donor during early October 2013 to December 2014 at the Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran. Serial urine samples at 2, 24, and 48 h after transplantation were analyzed for interleukin 18 and neutrophil gelatinase-associated lipocalin levels.
Thirteen patients (18.9%) developed delayed graft function. Urine interleukin 18 to urine creatinine ratio was significantly higher in patients with delayed graft function compared to those with non-delayed graft function, at 2 (P=0.003), 24 (P Urinary interleukin 18 to urine creatinine ratio at 24 h post-transplantation, along with traditional markers such as relative fall in serum creatinine, urine output and other risk factors for delayed graft function, increased the ability to predict delayed graft function.