Vol 6 No 2 (2020): Spring

Published: 2020-05-04

Research Article(s)

  • XML | PDF | downloads: 191 | views: 249 | pages: 60-64

    Background: The use of subcutaneous enoxaparin is a usual method for preventing venous thromboembolism (VTE) in the intensive care unit (ICU) patients, but adequate absorption of the drug is not reliable due to the illness intensity, existing edema and hypoperfusion in these patients. The aim of this study was to compare the effect of intravenous enoxaparin with subcutaneous enoxaparin to prevent VTE in ICU patients.
    Methods: The current double-blind Randomized clinical trial was performed on 64 patients admitted to the ICU at Khatam- Al- Anbia Hospital in Zahedan, southeast of Iran. The patients were randomly assigned into each of the subcutaneous enoxaparin and the intravenous enoxaparin groups. The blood sampling was performed aseptically and then active factor Xa level was measured. Next, the intervention group received 0.5 mg/kg of intravenous enoxaparin for 10 days and the control group was injected subcutaneously the same dosage of drug. Four hours after the first injection and 12 hours after the last injection on the tenth day, the factor Xa level and the frequency of VTE incidence was measured again.
    Results: In all three measurement times, the active factor Xa level in the intravenous enoxaparin group was lower than that of the subcutaneous group, but no significant difference was observed between the two groups and different times (P> 0.05).
    Conclusion: The results of this study showed that the use of intravenous enoxaparin is an effective way to prevent the VTE development in the ICU patients.

  • XML | PDF | downloads: 193 | views: 191 | pages: 65-70

    Background: Videolaryngoscopes are now being advocated as the universal device for airway management due to their ability to provide an improved glottic visualisation. Due to their ability to see around the corners, they obviate the need to align the airway axes and thus may lead to less airway stimulation. This may result in less haemodynamic response during laryngoscopy and intubation. The present study was designed to compare the haemodynamic response to intubation with King Vision and C-MAC® videolaryngoscopes.
    Methods: After obtaining informed consent, adults with unanticipated difficult intubation, scheduled to undergo surgery under general anaesthesia were randomised to be intubated with either King Vision (Group K) or C-MAC® (Group C) videolaryngoscope. Following a standardised general anaesthesia induction protocol all subjects were intubated with the allocated videolaryngoscope and haemodynamic parameters (heart rate, systolic pressure, diastolic pressure and mean arterial pressure) were recorded at specific time points. Statistical analysis was done using the SPSS Software (version 18.0).
    Results: The changes in the heart rate, systolic pressure, diastolic pressure and mean arterial pressure following laryngoscopy and intubation with the allocated videolaryngoscope were statistically similar between the two groups at all time points.
    Conclusion: Haemodynamic responses to laryngoscopy and intubation with King Vision and C-MAC® videolaryngoscopes were similar.

  • XML | PDF | downloads: 137 | views: 215 | pages: 71-77

    Background: Two major complications of surgeries are postoperative nausea and vomiting (PONV) and also postoperative pain (POP). Several studies have compared total intravenous anesthesia (TIVA) with inhalational anesthesia regarding these two complications. Some results have shown a better postoperative recovery conditions, but other contradictory results can also be found.This study was performed to evaluate and compare the effect of inhalational and intravenous anesthesia in patients undergoing elective laparoscopic surgery, on the incidence and the severity of PONV and POP.
    Methods: This study was performed as a single-blinded prospective clinical trial. All patients aged 18-65, with ASA class I and II who underwent elective laparoscopy were included. Patients were divided into two groups of intravenous anesthesia and inhalational anesthesia. The incidence and the severity of PONV and POP were examined in 5 separated times after the surgery. The use of a rescue antiemetic and analgesic medication were also evaluated.
    Results: Overall, 67 patients received inhalational anesthesia and 55 patients received intravenous anesthesia. It was revealed that 47.8% of the patients in the inhalation group and 18.2% of the patients in the intravenous group developed PONV (P<0.001). The severity of PONV was significantly lower in the TIVA group (P<0.001), however, no statistically significant difference was found regarding the severity of abdominal pain (P=0.62).
    Conclusion: The incidence of PONV and the need for administration of an antiemetic rescue drug are significantly lower in the TIVA group.

  • XML | PDF | downloads: 89 | views: 243 | pages: 78-82

    Background: Goal-directed fluid therapy may improve perioperative fluid management. This study aimed to evaluate the effects of Pleth variability index (PVI)-guided fluid therapy on changes in intraoperative serum lactate levels in comparison with liberal fluid therapy.
    Methods: This study was a randomized double-blinded clinical trial that was conducted in the operating room of a university hospital. Inclusion criteria comprised patients aged 18–60 years and classified as American Society of Anesthesiologists physical status class I and II, who were candidates for elective thyroidectomy. In total, 44 patients meeting the inclusion criteria were enrolled in the study and randomly assigned to two groups: the liberal and PVI groups. In both groups, 5 mL/kg bolus of normal saline was infused prior to the anesthesia induction. In the PVI group, 100 mL bolus of normal saline was administered every 5 min if the PVI remained >13% during the operation. In the liberal group, continuous crystalloid infusion (5–6 mL/kg/h) was administered throughout the surgery. Arterial blood samples were taken, and serum lactate levels were measured following anesthesia induction and just before tracheal extubation.
    Results: In the PVI group, mean serum lactate decreased at the end of the surgery, with a difference of −0.6 ± 0.13 mmol/L, whereas it increased in the liberal group (0.070 ± 0.3, P<0.05).
    Conclusion: In conclusion, we found that using intraoperative PVI-guided fluid therapy could decrease serum lactate levels and total fluid administration compared to the liberal method.

  • XML | PDF | downloads: 114 | views: 315 | pages: 83-88

    Background: For patients with prolonged bed rest and immobilization because of motor or consciousness disorders, many factors may contribute to the development of pressure ulcers. To this end, the present study aimed to investigate the frequency of pressure ulcers and the factors affecting the development of this condition in intensive care units (ICUs).
    Methods: In this descriptive cross-sectional study, the case files and records of patients hospitalized between March 2017 and March 2018 entered the study using the census method. The necessary information including age, gender, location of pressure ulcers, number of ulcers on each part of the body, length of stay in ICU, and underlying diseases was extracted from the files and recorded in the data checklist. In the end, the extracted data were analyzed with SPSS 25.
    Results: Of the 781 patients studied, 71 (9.1%) had pressure ulcers, of whom 34 were men and 37 were women. A statistically significant difference was found between men and women in terms of the incidence of pressure ulcer (p = 0.0013). The most common sites of pressure ulcers were buttock with 34 cases (47.9%) and sacrum with 21 cases (29.6%).
    Conclusion: Old age and prolonged stay in ICU are important determinants of the development of pressure ulcers.

Review Article(s)

  • XML | PDF | downloads: 401 | views: 871 | pages: 89-102

    Acute cardiogenic pulmonary edema (ACPE) is a common and life-threatening condition among patients with heart failure. The literature contains a large number of reviews discussing the respiratory management aspect of this entity; nonetheless, none of these studies has thoroughly probed into the respiratory management of different cardiac pathologies ending with ACPE, together with the different modes of ventilation and invasive and noninvasive ventilation in the same discussion. The present review seeks to discuss the physiologic bases of lung-heart interactions, the hemodynamic effects of positive pressure ventilation, and the results of studies on the effects of the various modes of ventilation having been used until the writing of this article. Also discussed herein are ACPE in different heart pathologies and their respective ventilator management, as well as the indications, complications, and contraindications of noninvasive positive pressure ventilation and intermittent mandatory ventilation.

Case Report(s)