How artificial intelligence can provide information about subdural hematoma: Assessment of readability, reliability, and quality of ChatGPT, BARD, and perplexity responses.

Subdural hematoma is defined as blood collection in the subdural space between the dura mater and arachnoid. Subdural hematoma is a condition that neurosurgeons frequently encounter and has acute, subacute and chronic forms. The incidence in adults is reported to be 1.72-20.60/100.000 people annually. Our study aimed to evaluate the quality, reliability and readability of the answers to questions asked to ChatGPT, Bard, and perplexity about "Subdural Hematoma." In this observational and cross-sectional study, we asked ChatGPT, Bard, and perplexity to provide the 100 most frequently asked questions about "Subdural Hematoma" separately. Responses from both chatbots were analyzed separately for readability, quality, reliability and adequacy. When the median readability scores of ChatGPT, Bard, and perplexity answers were compared with the sixth-grade reading level, a statistically significant difference was observed in all formulas (P < .001). All 3 chatbot responses were found to be difficult to read. Bard responses were more readable than ChatGPT's (P < .001) and perplexity's (P < .001) responses for all scores evaluated. Although there were differences between the results of the evaluated calculators, perplexity's answers were determined to be more readable than ChatGPT's answers (P < .05). Bard answers were determined to have the best GQS scores (P < .001). Perplexity responses had the best Journal of American Medical Association and modified DISCERN scores (P < .001). ChatGPT, Bard, and perplexity's current capabilities are inadequate in terms of quality and readability of "Subdural Hematoma" related text content. The readability standard for patient education materials as determined by the American Medical Association, National Institutes of Health, and the United States Department of Health and Human Services is at or below grade 6. The readability levels of the responses of artificial intelligence applications such as ChatGPT, Bard, and perplexity are significantly higher than the recommended 6th grade level.

The effect of amantadine treatment on neurological outcome and mortality in mechanically ventilated severe head trauma patients in intensive care unit.

This study aims to investigate the effect of amantadine use on neurological outcomes and mortality in patients with severe traumatic brain injury (TBI) (Glasgow coma score [GCS] between 3 and 8) who have been followed up on mechanical ventilators in the intensive care unit (ICU). Data from the hospital's electronic records were retrospectively searched. Patients over 18 years of age, with severe brain trauma (GCS between 3-8), who were treated with endotracheal intubation and invasive mechanical ventilation at admission to the ICU, and who were treated with Amantadine hydrochloride at least once in the first week of follow-up were included in the study. To evaluate the patients' neurological outcomes, the GCS and FOUR scores were used. GCS and FOUR scores were recorded on the 1st, 3rd, and 7th days of the first week. In addition, the score difference between the 1st and 7th day was calculated for both scores. The patients were divided into 2 groups: those receiving amantadine treatment (Group A, n = 44) and the control group (Group C, n = 47). The median age of all patients was 39 (18-81) (P = .425). When Group A and Group C were compared, no statistically significant results were found between the 1st, 3rd, and 7th day GCS values (P = .474, P = .483, and P = 329, respectively). However, the difference in GCS values between day 1 and day 7 (∆ GCS 7-1) was statistically significant (P = .012). Similarly, when Group A and Group C were compared, no statistically significant results were found between the 1st, 3rd, and 7th day FOUR score values (P = .948, P = .471, and P = .057, respectively). However, the FOUR score values between day 1 and day 7 (∆ FOUR score 7-1) were statistically significant (P = .004). There was no statistically significant difference among the groups in terms of ICU length of stay, duration of non-ICU hospital stay, and length of hospital stay (P = .222, P = .175, and P = .067, respectively). Amantadine hydrochloride may help improve neurological outcomes in patients with severe TBI. However, further research is needed to investigate this topic.

Assessing the quality and reliability of YouTube videos as a source of information on inflammatory back pain.

Background: Inflammatory back pain is a chronic condition with localized pain, particularly in the axial spine and sacroiliac joints, that is associated with morning stiffness and improves with exercise. YouTube is the second most frequently used social media platform for accessing health information. This study sought to investigate the quality and reliability of YouTube videos on inflammatory back pain (IBP). Methods: The study design was planned as cross-sectional. A search was conducted using the term "inflammatory back pain," and the first 100 videos that met the inclusion criteria were selected on October 19, 2023. The data of the videos selected according to the inclusion and exclusion criteria in the study settings were examined. Videos with English language, with audiovisual content , had a duration >30 s, non-duplicated and primary content related to IBP were included in the study. A number of video parameters such as the number of likes, number of views, duration, and content categories were assessed. The videos were assessed for reliability using the Journal of the American Medical Association (JAMA) Benchmark criteria and the DISCERN tool. Quality was assessed using the Global Quality Score (GQS). Continuous variables were checked for normality of distribution using Shapiro-Wilk test and Kolmogorov-Smirnov test. Kruskal-Wallis test and Mann-Whitney U test were used to analyze the continuous data depending on the number of groups. Categorical data were analyzed using Pearson's chi-square test. Results: Reliability assessment based on JAMA scores showed 21% of the videos to have high reliability. Quality assessment based on GQS results showed 19% of the videos to have high quality. JAMA, DISCERN, and GQS scores differed significantly by source of video (p < 0.001, < 0.001, and = 0.002, respectively). Video duration had a moderate positive correlation with scores from the GQS (r = 0.418, p < 0.001), JAMA (r = 0.484, p < 0.001), and modified DISCERN (r = 0.418, p < 0.001). Conclusion: The results of the present study showed that YouTube offers videos of low reliability and low quality on inflammatory back pain. Health authorities have a responsibility to protect public health and should take proactive steps regarding health information shared on social media platforms.

Early complications in scoliosis surgery and relation to preoperative factors: A single-center retrospective study.

In this study, we aimed to investigate the perioperative complications of the patients who underwent scoliosis surgery in our hospital and the factors that may affect the outcome. Between 2014 and 2018, scoliosis patients recorded data was examined retrospectively. Age, gender, height, body weight, comorbidity, Cobb index, scoliosis etiology, operation time, preoperative and postoperative hemoglobin, hematocrit, leukocyte, blood urea nitrogen, creatinine, coagulation value, operation time, level of instrumentation, intraoperative and postoperative blood loss, blood transfusion, intraoperative fluid administration, preoperative pulmonary function test values, blood gas values, urine outputs, hospital (LOS) and post anesthesia care unit stays, complications and mortality rates were examined. The files of 77 patients (48 female, 29 male) were retrospectively analyzed. The average age was 19.54 ±â€…16.32 years and 98.7% were elective surgery. The mean of LOS was 13.55 ±â€…9.13 days. As the preoperative hematocrit value decreases, LOS increases significantly. In patients with chronic obstructive pulmonary disease, smokers and high ASA scores, LOS is prolonged in patients with previous operations. As intraoperative colloid administration increased, crystalloid and blood products increased, it was also observed that the amount of crystalloid increased LOS. As the amount of intraoperative colloid or red blood cell administration increases, the duration of surgery and anesthesia increases, also increases the duration of post anesthesia care unit. Compared to patients with complications (n = 29) to the patients without complications (n = 47), it was found that they had longer anesthesia, and surgery times, also longer LOS times (P < .05). Our study showed that chronic obstructive pulmonary disease in the preoperative period, smoking, high ASA score, excessive use of colloid, prolonged duration of surgery and anesthesia, and long intubation durations increase the length of hospital stay. Preoperative comorbidity is directly related to postoperative complications and causes longer hospitalization after reconstructive scoliosis surgery.

Comparison of pressure controlled, volume controlled, and volume guaranteed pressure controlled modes in prone position in patients operated for lumbar disc herniation: A randomized trial.

BACKGROUND: To compare pressure-controlled ventilation (PCV), volume-controlled ventilation (VCV), and pressure-controlled ventilation-volume guaranteed (PCV-VG) modes in patients undergoing spinal surgery in the prone position under general anesthesia. METHODS: The study included 78 patients aged 20 to 80 years, American Society of Anesthesiologists 1-2, scheduled for lumbar spinal surgery. Patients included in the study were randomly divided into 3 groups Group-VCV; Group-PCV; Group-PCV-VG. Standard anesthesia protocol was applied. In addition to routine monitoring, train of four and BIS monitoring were performed. All ventilation modes were set with a target tidal volume of 6 to 8 mL/kg, FiO2: 0.40-0.45 and a respiratory rate of normocarbia. Positive end-expiratory pressure: 5 cm H2O, inspiration/expiration ratio = 1:2, and the maximum airway pressure:40 cm H2O. Hemodynamic, respiratory variables and arterial blood gases was measured, 15 minutes after induction of anesthesia in the supine position (T1), after prone position 15 minutes (T2), 30 minutes (T3), 45 minutes (T4), 60 minutes (T5), 75 minutes (T6), 90 minutes (T7). RESULTS: There was no significant difference between the groups in patient characteristics. SAP, DAP, mean arterial pressure, and heart rate decreased after being placed in the prone position in all groups. Hemodynamic variables did not differ significantly between the groups. partial arterial oxygen pressure and arterial oxygen saturation levels in blood gas were found to be significantly higher in Group-PCV-VG compared to Group-PCV and Group-VCV in both the supine and prone positions. Ppeak and plateau airway pressure (Pplato) values increased and dynamic lung compliance (Cdyn) values decreased after placing the patients in the prone position in all groups. Lower Ppeak and Pplato values and higher Cdyn values were observed in both the supine and prone positions in the Group-PCV-VG group compared to the Group-PCV and Group-VCV groups. CONCLUSION: PCV-VG provides lower Ppeak and Pplato values, as well as better Cdyn, oxygenation values compared to PCV and VCV. So that PCV-VG may be an effective alternative mode of mechanical ventilation for patients in the prone position during lumbar spine surgery.

Assessment of the Readability of the Online Patient Education Materials of Intensive and Critical Care Societies.

OBJECTIVES: This study aimed to evaluate the readability of patient education materials (PEMs) on websites of intensive and critical care societies. DATA SOURCES: Websites of intensive and critical care societies, which are members of The World Federation of Intensive and Critical Care and The European Society of Intensive Care Medicine. SETTING: Cross-sectional observational, internet-based, website, PEMs, readability study. STUDY SELECTION: The readability of the PEMs available on societies' sites was evaluated. DATA EXTRACTION: The readability formulas used were the Flesch Reading Ease Score (FRES), Flesch-Kincaid Grade Level (FKGL), Simple Measure of Gobbledygook (SMOG), and Gunning Fog (GFOG). DATA SYNTHESIS: One hundred twenty-seven PEM from 11 different societies were included in our study. In the readability analysis of PEM, the FRES was 58.10 (48.85-63.77) (difficult), the mean FKGL and SMOG were 10.19 (8.93-11.72) and 11.10 (10.11-11.87) years, respectively, and the mean GFOG score was 12.73 (11.37-14.15) (very difficult). All readability formula results were significantly higher than the recommended sixth-grade level ( p < 0.001). All PEMs were above the sixth-grade level when the societies were evaluated individually according to all readability results ( p < 0.05). CONCLUSIONS: Compared with the sixth-grade level recommended by the American Medical Association and the National Institutes of Health, the readability of PEMs in intensive and critical care societies is relatively high. PEMs in intensive and critical care societies should be prepared with attention to recommendations on readability.

The gender composition of the members of the editorial board of toxicology journals: Assessment of gender equality.

In many areas of medicine, gender equality has not yet been fully adopted despite recent developments. The inequality of gender in various areas of medicine is still debated. In this study, we analysed the gender composition of the editorial boards of toxicology journals in the Science Citation Index-Expanded (SCI-E) databases and the factors affecting this composition. The genders of the participants were determined by the data obtained from the official websites of the journals in September 2023. We analysed the journal metrics and publisher properties using Mann-Whitney U, Fisher's exact, Chi-square tests and Spearman's correlation coefficient. We used logistic regression analysis to reveal the independent factors related to gender parity. The representation rates of women were 28.62% on all editorial boards and 23.33% in editor-in-chief positions. The 'Neuroscience' (OR, 2.46 95%CI, 1.68-3.60, p < 0.001), 'Reproductive Biology'(OR, 2.05 95%CI, 1.22-3.42, p = 0.006) and 'Public, Environmental & Occupational Health'(OR, 1.49 95%CI, 1.18-1.88, p = 0.001) as a coverage category, the United States as a journal country (OR, 1.21, 95%CI, 1.04-1.40, p = 0.001), 5-year-IF≥3.6(OR, 1.54, 95%CI, 1.27-1.86, p < 0.001), 5-year H index≥29 (OR, 1.23, 95%CI, 1.01-1.49, p = 0.037) were the independent factors for gender parity. However, 'Oncology' (OR, 0.08 95%CI, 0.01-0.55, p = 0.011), 'Biochemistry, Molecular Biology' (OR, 0.62 95%CI, 0.44-0.86, p = 0.005) and 'Pharmacology & Pharmacy' (OR, 0.69 95%CI, 0.59-0.82, p < 0.001) as a coverage category, Japan as a publisher country (OR, 0.52 95%CI, 0.35-0.77, p = 0.001), and Switzerland as a journal country (OR, 0.61, 95%CI, 0.46-0.81, p = 0.001) were related to gender disparity. Greater endeavours are needed to reduce gender discrimination in toxicology. Toxicology authorities should continuously improve existing policies by optimising the analysis of objective information to eliminate barriers for toxicologists in terms of gender equality.

The bibliometric analysis of most cited 100 papers in anesthesia-induced neurotoxicity.

Anesthesia-induced neurotoxicity is a major concern for anesthetists for more than 20 years. Many experimental and clinical studies have been conducted on this topic since late 1990s. However, bibliometric analysis of these papers has not been reported. In this study, we aimed to analyze the 100 most cited articles on anesthesia-induced neurotoxicity. It was planned as cross-sectional study. On January 30, 2023, we searched the "Web of Science (WOS)" database for anesthesia-induced neurotoxicity and most cited 100 papers about this topic were obtained. Data such as authors' names, year of publication, name of the journal, type of paper, and citation numbers were analyzed. The most cited 100 papers were read by the investigators, and the anesthetic, animal type in experimental studies, any protective agent and the method for detecting neurotoxicity used in the studies were also noted. There were 75 articles and 22 reviews in the 100 most cited articles. We found that most of the papers in most cited 100 list were published between 2010 to 1024. Most of the papers (11%) were from Harvard University and almost half of the papers (49%) were published in Anesthesiology. A great number of studies were performed in newborns or early childhood (85.5%) and inhalational anesthetics (54.7%) were the most studied anesthetic type. Most of the most cited 100 papers were published in Q1 journals (P = .012) and the continent of the most journals in this list was America (P = .014). The median total and annual citation numbers of funded papers were statistically significantly higher (P < .001 and P < .001 respectively). Anesthesia-induced neurotoxicity is very important, especially for pediatric anesthetists. This study is the first to conduct a bibliometric analysis of the most cited 100 publications on this field. Although there was a gap in the publications about this topic during COVID-19 pandemic, we believe that there will be many more publications on anesthesia-induced neurotoxicity since the mechanism, outcome and possible protection are still unknown.

Clinical Significance of Pleural Lactate Measurement in Critically Ill Patients with Parapneumonic Pleural Effusion.

OBJECTIVE: Pleural fluid pH measurement is recommended for tube thoracostomy decisions in complicated parapneumonic pleural effusions. However, pleural fluid pH may be affected by blood pH in critically ill patients with common systemic acid-base disorders. We aimed to investigate the use of pleural fluid lactate to distinguish culture-positive parapneumonic effusions from other pleural effusions. MATERIAL AND METHODS: This prospective observational study included 121 eligible patients (51 female and 70 male). All patients with pleural effusion who underwent thoracentesis were assessed. Pleural fluid lactate was measured by a blood gas analyzer. RESULTS: Of the 121 patients, 30 (24.8%) were transudate and 91 (75.2%) were exudate. Of the 91 patients with exudative pleural effusion, 61 were diagnosed as culture-negative parapneumonic, 13 as culture-positive parapneumonic, 9 as malignant, and 8 as other exudative effusion. There was a strong positive linear association between serum pH and pleural fluid pH (R = 0.77, P < .001). The post hoc tests for pleural fluid lactate revealed there was a significant difference between culture-positive parapneumonic versus culture-negative parapneumonic groups (P = .004), culture-positive parapneumonic versus transudative effusion groups (P < .001), culture-negative parapneumonic versus transudative effusion groups (P = .008) and lastly; malignant effusion versus transudative effusion groups (P = .001). Receiver operating characteristics curve analysis for culture-positive parapneumonic indicated a cutoff of 4.55 mmol/L for pleural fluid lactate to have a sensitivity of 76.9% and a specificity of 84.3% (positive predictive value: 37%, negative predictive value: 96.8%). CONCLUSION: A cutoff of 4.55 mmol/L of pleural fluid lactate can be used as a useful tool to distinguish culture-positive parapneumonic effusions from other effusions in critically ill patients.

Evaluation of the reliability and quality of YouTube videos as a source of information for transcutaneous electrical nerve stimulation.

Background: YouTube plays an influential role in disseminating health-related information in the digital age. This study aimed to evaluate YouTube videos on transcutaneous electrical nerve stimulation (TENS) in terms of their information value and quality. Methods: In this descriptive study, we ranked the first 100 videos that met the inclusion criteria using the search term "transcutaneous electrical nerve stimulation" on October 30, 2022. These videos were classified according to the number of views, likes, dislikes, comments, duration, popularity and content categories. Reliability, quality, and accuracy of the videos were assessed using the Journal of American Medical Association (JAMA) Benchmark Criteria and Modified DISCERN Questionnaire and Global Quality Score (GQS). Video popularity were calculated by the Video Power Index (VPI). Results: Based on the GQS results, we found that 59, 27, and 14 videos had low, intermediate, and high quality, respectively. In addition, based on the JAMA results, 79 and 21 videos had poor and high reliability, respectively. No statistically significant difference was found between the JAMA, modified DISCERN and GQS scores in terms of the sources of videos (p = 0.226, p = 0.115, p = 0.812). Notably, there was a weak positive correlation between the JAMA scores and the number of views (r = 0.204, p = 0.041). Conclusion: According to our study results, most YouTube videos on TENS were of low quality and reliability. Additionally, most videos were uploaded from sources created by doctors; the most frequently found content was about the TENS procedure, and content on complications of the procedure became less frequent as the videos became more recent. In particular, it was found that videos uploaded by academics have longer duration. It has been found that reliable videos with high JAMA scores also have high number of views. Accordingly, it can be concluded that videos with higher quality and more reliability that are created by healthcare providers will be more useful for patients seeking information about TENS.

Evaluating the readability, quality and reliability of online patient education materials on transcutaneuous electrical nerve stimulation (TENS).

Increasing digitization also raises concerns regarding the reliability and comprehensibility of online health information. In this study, we aimed to examine the readability, reliability, and quality of internet-based patient education materials on "transcutaneous electrical nerve stimulation." On September 15, 2022, we used Google search engine to search the keyword "Transcutaneous Electrical Nerve Stimulation" and obtained information from 200 websites. The readability of the websites was evaluated using the Flesch Reading Ease Score (FRES), Flesch-Kincaid Grade Level, Simple Measure of Gobbledygook, and Gunning Fog. The Journal of American Medical Association score and Health on the Net Foundation code of conduct were used to determine the reliability of the websites, whereas the DISCERN score and Global Quality Score were used to evaluate the quality of the websites. In the readability analysis of 102 websites that met the inclusion criteria of this study, we found that the Flesch Reading Ease Score was 47.91 ± 13.79 (difficult), average Flesch-Kincaid Grade Level and Simple Measure of Gobbledygook were 11.20 ± 2.85 and 10.53 ± 2.11 years, respectively, and average Gunning Fog score was 14.04 ± 2.74 (very difficult). Commercial websites constituted the highest proportion of websites (n = 36, 35.5%). Overall, 16.7% of the websites were found to be of high quality according to the Global Quality Score, 16 (15.7%) websites had Health on the Net Foundation code of conduct certification, and 8.8% of the websites were found to be highly reliable according to the Journal of American Medical Association scores. There was a statistically significant difference between website typologies and quality and reliability scores (P < .001). Compared with the sixth-grade level recommended by the American Medical Association and the National Institute of Health, the readability of transcutaneous electrical nerve stimulation-related internet-based patient education materials was considerably high, but they showed low reliability and moderate-to-poor quality. Thus, the quality, reliability, and readability of websites developed by health professionals play a major role in conveying accurate and easily understandable information.

Gender distribution of editorial board members in critical care journals: Assessment of gender parity.

PURPOSE: To reveal factors related to gender parity on editorial boards of critical care journals indexing in SCI-E. METHODS: The genders were defined according to data obtained from journals' websites between 01-30 September 2022. Publisher properties and journal metrics were analyzed by using Chi-square, Fisher exact, Mann-Whitney U tests, and Spearman's correlation coefficient. Logistic regression analysis was used to reveal independent factors. RESULTS: Women's representation on editorial boards was 23.6%. The USA (OR, 0.04, 95% CI, 0.01-0.15, p < 0.001) and Netherlands (OR, 0.04, 95% CI, 0.01-0.16, p < 0.001) as publisher's countries, an IF >5 (OR, 0.25, 95% CI, 0.17-0.38, p < 0.001), publication duration <30 years (OR, 0.09, 95% CI, 0.06-0.12, p < 0.001), multidisciplinary perspective of editorial policy (OR, 0.46, 95% CI, 0.32-0.65, p < 0.001), journals categorized also in nursing (OR, 0.38, 95% CI, 0.22-0.66, p < 0.001), and being a section editor (OR, 0.49, 95% CI, 0.32-0.74, p = 0.001) were associated with gender parity. Europe as a journal continent (OR, 36.71, 95% CI, 8.39-160.53, p < 0.001) was related to gender disparity. CONCLUSIONS: Further efforts are needed to expand diversity policies in critical care medicine.

Amikacin-induced acute kidney injury in mechanically ventilated critically ill patients with sepsis.

In this retrospective cohort study, we aimed to evaluate the incidence, risk factors and outcomes of amikacin-induced acute kidney injury (AKI) in critically ill patients with sepsis. A total of 311 patients were included in the study. Of them, 83 (26.7%) had amikacin-induced AKI. In model 1, the multivariable analysis demonstrated concurrent use of colistin (OR 25.51, 95%CI 6.99-93.05, p< 0.001), presence of septic shock during amikacin treatment (OR 4.22, 95%CI 1.76-10.11, p=0.001), and Charlson Comorbidity Index (OR 1.14, 95%CI 1.02-1.28, p=0.025) as factors independently associated with an increased risk of amikacin-induced AKI. In model 2, the multivariable analysis demonstrated concurrent use of at least one nephrotoxic agent (OR 1.95, 95%CI 1.10-3.45; p=0.022), presence of septic shock during amikacin treatment (OR 3.48, 95%CI 1.61-7.53; p=0.002), and Charlson Comorbidity Index (OR 1.12, 95%CI 1.01-1.26; p=0.037) as factors independently associated with an increased risk of amikacin-induced AKI. In conclusion, before amikacin administration, the risk of AKI should be considered, especially in patients with multiple complicated comorbid diseases, septic shock, and those receiving colistin therapy.

Workplace violence against physicians in intensive care units in Turkey: A cross-sectional study.

Background Although there are many studies on violence against physicians in the literature, there are few studies on violence against physicians working in intensive care units (ICUs). We aimed to investigate the frequency, type and underlying factors of violence against physicians working in ICUs in Turkey in the past 1 year. Methods We collected data by sending a questionnaire about violence against physicians working in ICUs via e-mail and WhatsApp between 1 and 15 May 2022. IBM SPSS Statistics V.24.0 was used for data analysis. The chi-square test and Fisher precision test were used to compare categorical data. Results Over one-third (38.6%) of the 354 physicians participating in our study reported that they had been exposed to violence in the past year, while 20.7% reported that they had been exposed to violence more than once in the past year. There was a significant relationship between the frequency of exposure to violence, female gender, age group, title, subspecialization status, working style and duration of working in the ICU (p<0.05). There was no relationship between the working area, type of hospital and ICU and exposure to violence (p>0.05). The presence of restriction and control points at the entrance to ICUs prevented violence (p<0.05). Conclusion Physicians working in ICUs encounter violence against them. The frequency of violence increased after the Covid-19 pandemic. A significant relationship was found between the frequency of violence and female gender, age group, title, subspecialization status, working style and duration of working in ICUs.

Acute kidney injury after major orthopedic surgery: A retrospective study of frequency and related risk factors.

OBJECTIVE: This study aimed to analyze the frequency of postoperative kidney injury, the related factors, and its effect on outcomes in major orthopedic surgery cases treated in the postanesthesia intensive care unit (PACU). METHODS: Major orthopedic surgery cases treated in the PACU were included in this study retrospectively. Demographic, operation, and anesthesia characteristics, CCI, ASA risk classes, preoperative biochemistry, and hemogram results of the patients were recorded. Postoperative serum creatinine level, urine output, renal replacement therapy requirement, and hemoglobin levels were recorded. The kidney damage of the patients was evaluated with RIFLE and AKIN criteria. Postoperative complications were recorded. RESULTS: The frequency of kidney injury in the early postoperative period was 7.1%. When only arthroplasty cases were taken, the frequency was 11%. It was determined that there was a correlation between preoperative ASA, CCI, BMI, K levels, lactate levels, and postoperative kidney damage (P <0.05). It was determined that the frequency and duration of inotropic use, the frequency and duration of noninvasive mechanical ventilation, and the duration of hospitalization increased in patients with postoperative kidney damage, and the frequency of pneumonia, wound infection, atelectasis, sepsis, arrhythmia, atrial fibrillation and mortality increased in the postoperative period (P <0.05). CONCLUSION: There is a need for further studies on the relationship between ASA, CCI, BMI, K, and lactate values and postoperative kidney damage. Postoperative kidney injury is associated with prolonged hospitalization and increased morbidity and mortality. LEVEL OF EVIDENCE: Level IV, Therapeutic Study.

Evaluation of Neuroprotective Effects of Sugammadex Following a Head Trauma in an Experimental Study.

ABSTRACT: To compare the efficacy of mannitol, the first choice of treatment in daily clinical practice for head trauma, and sugammadex, a frequently used neuroanesthesia in recent years. A total of 35 male rats were randomly selected and were divided into 5 groups, each comprising 7 rats. The groups were divided into Group I, sham (n = 7); Group II, control (head trauma, n = 7); Group III, treated with mannitol (head trauma, mannitol 20% 1 g/kg, n = 7); Group IV, treated with sugammadex (head trauma, sugammadex 100 mg/ kg, n = 7); and Group V, treated with mannitol and sugammadex (head trauma, mannitol 20% 1 g/kg and sugammadex 100 mg/kg, n = 7). After the sacrification, histological examination and immu-nohistochemical staining were performed in the brain of all subjects. Mann-Whitney U test was used to evaluate the significance between neuronal density, neuronal nuclei, and activated caspase-3 immunohistochemistry results measured from the prefrontal cortex. Neuronal density showing neuronal viability was observed to significantly increase in Group III compared to Group IV. However, neuronal nuclei immunohistochemistry showing apoptotic neurons also significantly increased. The present study has shown that sugammadex, an agent reversing the effects of neuromuscular blocking agents, has neuroprotective effects and is as effective as mannitol.

Comparison of Effects of Extubation in Prone and Supine Positions in Patients Operated for Lumbar Disc Herniation.

AIM: To observe the effects of prone position extubation on respiratory side effects and hemodynamic parameters in patients who underwent lumbar spinal surgery. MATERIAL AND METHODS: This prospective observational study included 60 patients extubated in either the prone (n=30) or supine (n=30) positions. Heart rate, noninvasive arterial blood pressure, peripheral oxygen saturation, train of four values, and bispectral index values were measured and recorded in all patients during operation and at the time of anesthetic agent discontinuation, before and after extubation. The Aldrete recovery score was recorded together with the severity of cough during emergence and recovery. Sore throat visual analog scale (VAS) score was recorded at the first and sixth hours after extubation. Incidents such as nausea, vomiting, respiratory failure, uncontrolled airway, and decreased saturation were also recorded. RESULTS: The number and severity of cough (p < 0.05) and sore throat VAS (p < 0.001) were lower in the prone group. Postextubation breath holding was more frequent in the supine group (p < 0.001). Aldrete recovery scores were higher in the prone group (p < 0.05). Heart rate and mean arterial pressure values were not significantly different in the prone group during the emergence and recovery period as compared with the supine group (p > 0.05). CONCLUSION: Extubation in the prone position after lumbar spinal surgery provides more comfortable emergence and recovery periods with less alteration of respiratory status and a better recovery profile.

Is serum magnesium level associated with atrial fibrillation in the mixed medical/surgical intensive care unit setting?

Background: Although low serum magnesium level is a a relatively common problem in mixed medical/surgical intensive care units (ICUs), its association with new-onset atrial fibrillation (NOAF) has been studied to a lesser extent. We aimed to investigate the effect of magnesium levels on the development of NOAF in critically ill patients admitted to the mixed medical/surgical ICU. Methods: A total of 110 eligible patients (45 female, 65 male) were included in this case-control study. The age and sex-matched control group (n = 110) included patients with no atrial fibrillation from admission to discharge or death. Results: The incidence of NOAF was 2.4% (n = 110) between January 2013 and June 2020. At NOAF onset or the matched time point, median serum magnesium levels were lower in the NOAF group than in the control group (0.84 [0.73-0.93] vs. 0.86 [0.79-0.97] mmol/L; p = 0.025). At NOAF onset or the matched time point, 24.5% (n = 27) in the NOAF group and 12.7% (n = 14) in the control group had hypomagnesemia (p = 0.037). Based on Model 1, multivariable analysis demonstrated magnesium level at NOAF onset or the matched time point (OR: 0.07; 95%CI: 0.01-0.44; p = 0.004), acute kidney injury (OR: 1.88; 95%CI: 1.03-3.40; p = 0.039), and APACHE II (OR: 1.04; 95% CI: 1.01-1.09; p = 0.046) as factors independently associated with an increased risk of NOAF. Based on Model 2, multivariable analysis demonstrated hypomagnesemia at NOAF onset or the matched time point (OR: 2.52; 95% CI: 1.19-5.36; p = 0.016) and APACHE II (OR: 1.04; 95%CI: 1.01-1.09; p = 0.043) as factors independently associated with an increased risk of NOAF. In multivariate analysis for hospital mortality, NOAF was an independent risk factor for hospital mortality (OR: 3.22; 95% CI: 1.69-6.13, p<0.001). Conclusion: The development of NOAF in critically ill patients increases mortality. Critically ill patients with hypermagnesemia should be carefully evaluated for risk of NOAF.

Thesis Studies of Universities in Anaesthesiology and Reanimation between 1970 and 2016: Retrospective Evaluation of Work Areas, Publishing Rates and Evidence Levels.

AIM: The aim of this study was to investigate the publication status, research design, subjects and levels of evidence of theses written in the field of anaesthesiology and reanimation between 1970 and 2016 in Turkey. METHODS: After the theses included in our study were accessed through the Higher Education Institution National Thesis Center, theses were searched using Google, Google Scholar, PubMed, and TR Directory TU¨ B_ITAK ULAKB_IM search engines. The publication status, research design, evidence levels, date of the published theses, journals and citation numbers for the theses were determined. RESULTS: A total of 2,803 theses were included in our study. When the evidence levels of the theses are evaluated, it was determined that B evidence level was present in 1,603 (57.2%), C in 597 (21.3%), F in 256 (12.3%) and D in 257 (9.2%). It was also determined that 719 (25.7%) of the theses were published later. The time difference between the thesis and the publication year was 3.14 6 2.26 years. Of these publications, 367 (51.0%) were appeared in national journals, with 293 in SCI-E (40.8%), 25 in SCI (3.5%) and 34 in other foreign journals (4.7%). While the rate of thesis studies with a prospective design decreased over the years, it was determined that experimental and retrospective thesis studies increased (P < .05). In the correlation analysis, there were weak correlations among the publication year, the number of citations and the impact of the journal. There was a positive correlation between the publication year and the number of cases. CONCLUSION: Although the number of prospectively designed theses and clinical theses in the field of anaesthesiology and reanimation has decreased over the years, there is an increase in the number of theses converted to publications. Although the rate of publication of theses abroad and in SCI-E journals has increased, decreases in the thesis rate published in SCI journals over the years and in the impact factors of the journals are notable. In the future, studies in anaesthesiology and reanimation should be performed to increase the number of theses that can be published in journals with higher impact.

Knowledge and Attitudes about Helsinki Declaration on Patient Safety among Anaesthesiologists in Turkey: A Questionnaire Study.

OBJECTIVE: The Helsinki Declaration on Patient Safety in Anaesthesiology is an important document for anaesthesiologists. This study aimed to evaluate the knowledge and experiences of anaesthesiologists in Turkey on the "Helsinki Declaration on Patient Safety." METHODS: After the ethics committee approval and participants' consent, electronic questionnaires were sent to anesthetists working in Turkey. The questionnaire included 48 questions. RESULTS: The mean age of the participants was 44.28±8.01 years, and 52.1% were women (n=142). The mean time spent in the field of anesthesiology was 12.83±7.76 years. The percentage of participants working in private hospitals was 13.4%. A total of 58.5% of the participants were educated on patient safety out of whom 57% said that their knowledge was sufficient, 37.3% said that it was limited, and 5.6% felt that it was insufficient. The knowledge of participants about the Helsinki Declaration was sufficient in 31.7%, limited in 39.4%, insufficient in 9.2%, and 19.7% had no knowledge. A total of 27% of participants believed that implementation of the Helsinki Declaration improved patient safety. It has been stated that the minimum patient monitoring standards recommended by the European Board of Anaesthesiology has been complied in operating rooms and recovery units (90.8% and 78.2%, respectively). CONCLUSION: The findings of this survey might guide not only the individual anesthetists but also hospital administrators to develop strategies to improve patient safety and thus quality of care in the light of the recommendations listed in the Helsinki Declaration.