Anomalous Origin and Retropulmonary Course of an Atherosclerotic Stenosed Left Circumflex Coronary Artery

We here present the case of a rarely seen anomalous origin and retropulmonary course of the left circumflex artery from the proximal right coronary artery. The patient suffered from coronary ischemia due to stenotic lesions both in the aberrant circumflex coronary artery and in the first and second diagonal branches. Coronary bypass operation was performed

Oxidative Stress and Anesthesia in Diabetic Patients

Free radical and peroxide production lead to intracellular damage. On the other hand, free radicals are used by the human immune system to defend against pathogens. The aging process could be limited by oxidative stress in the short term. Chronic diseases like diabetes mellitus (DM) are full-stress conditions in which remarkable metabolic functional destructions might happen. There is strong evidence regarding antioxidant impairment in diabetes. Performing a particular method for anesthesia in diabetic patients might prevent or modify excessive free radical formation and oxidative stress. It seems that prescribing antioxidant drugs could promote wound healing in diabetics.

Incidence of Postoperative Acid-Base Disturbances in Abdominal Surgery

Introduction: Respiratory and blood pressure changes as well as fluid administration alter the acid-base balance during the perioperative period which may cause consciousness disturbance and additional hemodynamic disorders. The aim of this study was to identify frequent postoperative acid-base disturbances in order to control postoperative complications. Materials and Methods:This prospective, observational study design was used on patients who underwent abdominal surgery during a six-month period. Gasometry was performed immediately after the patients’ admittion to ICU and six and 12 hours postoperatively. SPSS v13 software was used, and PResults: 213 patients (123 male and 90 female) aged 14-85 years (51.7± 22.4) were evaluated. During admission, PH and PaCO2 were (7.29±0.13) and (38.3±11.9), respectively; however, although PH increased gradually (P=0.001), PaCO2 was reduced (P=0.03). Bicarbonate and base excess had opposite effects; bicarbonate initially decreased but increased after 12 hours (P=0.001), whereas base excess initially increased (-6.3±11.6) and then decreased gradually (P=0.003). The arterial oxygen pressure was reduced for 22.5% of the patients throughout the admission period, and this did not significantly change (P=0.57). Conclusion: According to the results, in admission, 65.7% had metabolic acidosis, but metabolic alkalosis was the least. Gradually, metabolic acidosis was modified, but metabolic alkalosis increased. Intraoperative hypotension and fluid infusion may be the main factors of early metabolic acidosis and control of hypotension, or correction of acidosis may increase metabolic alkalosis

The Effect of Intravenous Tranexamic Acid on Blood Loss in Lumbar Hernial Disc Resection under Inhalation and Total Intravenous Anesthesia

Abstract Background: Tranexamic acid is a synthetic antifibrinolytic drug that reduces bleeding and transfusion requirements in cardiac surgery and total knee arthroplasty. In this study, we evaluated the efficacy of the prophylactic tranexamic acid on intraoperative bleeding in patients undergoing lumbar hernial dics resection

Anesthesia related Complications in Pediatric GI Endoscopy

Introduction: Elective upper and lower GI endoscopy is usually performed in children on an outpatient basis with the child under sedation or general anesthesia (GA). The objective of this study was to describe Anesthesia related complications in   children undergoing elective GI endoscopy.   Materials and Methods: The study design was descriptive on 1388 patients undergoing elective GI endoscopy in Sheikh Hospital from 2009 to 2013. All patient received propofol or standard inhalational anesthesia. We examined patients’ demographic data  ,  location of GI endoscopy ,  perioperative vital singe ,  recovery time , respiratory and cardiac complications , post operative nausea and vomiting , agitation , diagnosis and outcome   Results: Pediatric patients aged 2 to 17 years. 29 % of elective GI endoscopy was upper GI endoscopy and 70.3 % was lower GI endoscopy and 0.7 was both of them. 47.7 % of Pediatric patients were female and 52.3 % was male. We haven’t significant or fatal anesthesia related respiratory and cardiac complications (no apnea, no cardiac arrest). 8 patients (0.5%) have transient bradicardia in post operative care Unit. 83 patients (5.9%) have post operative nausea and vomiting controlled by medication.  6 patients (0.4%) have post operative agitation controlled by medication.   Conclusions: General anesthesia and deep sedation in children undergoing elective GI endoscopy haven’t significant or fatal anesthesia related complications. We suggest Anesthesia for infants, young children, children with neurologic impairment, and some anxious older children undergoing elective GI endoscopy. Keyword: Anesthesia, Complication, Endoscopy, Pediatric

Comparison of Intravenous Ranitidine with Pantoprazole in Decreasing Gastric Fluid Acidity in Emergency Cesarean Section

Objectives: Peri-operative aspiration of gastric contents is a problem that causes certain respiratory problems including ARDS. Prophylaxis against aspiration of gastric contents is performed routinely in elective surgeries, but there is rare evidence on the efficacy of this method in emergency cesarean section. Materials and Methods: This is a randomized, controlled, double-blinded clinical trial. 60 parturients undergoing emergency cesarean section were randomly assigned into three groups of 20 each. They were allocated into two study and one placebo groups. The study group one and two received intravenous ranitidine (IV) 50 mg or IV pantoprazole 40 mg, half an hour before induction of GA, respectively. The placebo group was administered just 5 ml of isotonic saline half an hour before GA induction. After intubation and confirmation of endotracheal tube insertion, the gastric contents were aspirated through a nasogastric tube for evaluation of acidity and volume. Results: A statistical difference between group one and two with the control group was observed in the acidity of gastric contents, but there was no difference in volume. Also, the PH level of gastric contents in patients receiving pantoprazole was significantly higher than the isotonic saline (

Upregulation of phospholipase d expression and activation in ventricular pressure-overload hypertrophy

Evidence for a role of phospholipase D (PLD) in cellular proliferation and differentiation is accumulating. We studied PLD activity and expression in normal and hypertrophic rat and human hearts. In rat heart, abdominal aortic banding (constriction to 50% of original lumen) caused hypertrophy in the left ventricle (as shown by weight index and ANP expression) by about 15% after 30 days without histological evidence of fibrosis or signs of decompensation and in the right ventricle after 100 days. The hypertrophy was accompanied by small increases of basal PLD activity and strong potentiation of stimulated PLD activity caused by 4beta-phorbol-12beta,13alpha-dibutyrate (PDB) and by phenylephrine. The mRNA expressions of both PLD1 and PLD2 determined by semiquantitative competitive RT-PCR were markedly enhanced after aortic banding. In the caveolar fraction of the rat heart, PLD2 protein determined by Western blot analysis was upregulated in parallel with the expression of caveolin-3. A similar induction of PLD mRNA and protein expression was observed in hypertrophied human hearts of individuals (39-45-year-old) who had died from non-cardiac causes. In conclusion, PLD1 and PLD2 expressions were strongly enhanced both in rat and human heart hypertrophy, which may be responsible for the coincident potentiation of the PLD activation by alpha-adrenoceptor and protein kinase C stimulation. These results are compatible with a significant role of PLD activation in cell signaling of ventricular pressure-overload hypertroph

Value and pitfalls of neurophysiological monitoring in thoracic and thoracoabdominal aortic replacement and endovascular repair

The aim of our study was to analyze the neurophysiological monitoring method with regard to its potential problems during thoracic and thoracoabdominal aortic open or endovascular repair. Furthermore, preventive strategies to the main pitfalls with this method were developed

Educational Needs of Nurses in Intensive Care Unit for Poisoned Patients

Objectives: Poisoned patients are at risk of impaired ventilation in many situations. The purpose of this descriptive study was to investigate the impact of educational workshops on nurses' knowledge, confidence, and attitude in taking care of poisoned patients. Materials and Methods: This descriptive study was performed on 60 nursing staff in the intensive care unit (ICU) for poisoned patients in Imam Reza (p) hospital, Mashhad, Iran. Data was gathered by a researcher-designed questionnaire. Studied scales included perceived importance and novelty of educational meeting, matching with professional and educational needs, illustration of practical and knowledge weaknesses and strength and finally satisfaction in holding regular workshops annually. Two, half day workshops were held and various items were taught with various methods. The knowledge of participants was assessed by pretests and post-tests consisting of 12 items related to workshop topics. The impact of these educational meetings was evaluated and the results were analyzed by the SPSS software. Results: According to the results, workshops improved awareness of nurses about their weakness and strength points, professional knowledge and their interest and attention; likewise all participants had the same opinion about a strong need to hold similar workshops more than once and preferably 2 to 3 times annually. Conclusion: It seems that short educational courses in small groups for reviewing the old data and recent findings in the context of critical care are useful in order to promote the knowledge and skills of ICU staff in taking care of poisoned patient