Serum neuron-specific enolase and S-100ß levels as prognostic follow-up markers for oxygen administered carbon monoxide intoxication cases.

Serum neuron-specific enolase (NSE) and S-100ß levels are considered novel biochemical markers of neuronal cell injury. In this study, the initial and post-treatment levels of NSE and S-100ß were compared in carbon monoxide (CO) poisoning patients, who received normorbaric oxygen (NBO) or hyperbaric oxygen (HBO) therapy. Forty consecutive patients with acute CO poisoning were enrolled in this prospective, observational study. According to their clinical symptoms and observations, twenty patients were treated with NBO, and the other twenty with HBO. Serum S-100ß and NSE levels were measured both at time of admission and 6 h later (post-treatment). Serum NSE and S-100ß values decreased significantly in both of the therapeutic modalities. The initial and post-treatment values of NSE and S-100ß in NBO or HBO patients were comparable. A clear negative correlation was observed between the decrease of NSE and S-100ß levels and initial blood carboxyhemoglobin levels. In conclusion, the present results suggested the use of serum S-100ß and NSE levels as indicators for brain injury. Due to the significant increase of their values with oxygen therapy, they may also be useful as prognostic follow-up markers. However, the current findings reflected no difference between the efficacy of NBO or HBO therapy.

Evaluation of autopsy reports in terms of preventability of traumatic deaths.

BACKGROUND: The analysis of autopsy reports plays an important role in the evaluation of trauma care quality. The objective of this study was to determine the rate of preventable deaths and medical errors in regard to the autopsy reports as an indicator of trauma care quality in traumatic deaths. METHODS: A retrospective review of traumatic autopsy reports kept between 2011 and 2012 in Eskisehir, Turkey was conducted. Demographic data of the cases, injury type, injury mechanism, injury location, ISS values, and cause and place of death were recorded. Deaths were judged in three groups including preventable deaths, potentially preventable deaths and non-preventable deaths. In the definiton of preventability, the criteria of American College of Surgeons Committee on Trauma were used. A commission composed of two forensic medicine specialists and one emergency medicine specialist reviewed preventability and defined medical errors. RESULTS: A total of five hundred and ninety-two autopsy reports were examined in the study period. Trauma was defined as the cause in 65.2% (n=386) of the cases. 81.9% (n=316) of the cases were observed to have suffered blunt injury and 18.1% (n=70) penetrating injury. Death occurred at the scene of trauma in 56.7% (n=219) of the cases, in the pre-hospital period in 11.7% (n=45), and in hospital in 31.6% (n=122). In preventability analysis, it was decided that 4.1% (n=16) of the cases had the properties of being preventable, 14.5% (n=56) potentially preventable and 81.3% (n=314) non-preventable. Suboptimal care was determined in 65.3% (n=47) of the total cases, delayed intervention in 58.3% (n=42), error in the medical method decision in 8.3% (n=6), delayed or wrong diagnosis in 1.4% (n=1), and inappropriate or incorrect medical application in 1.4% (n=1). CONCLUSION: High rates of preventable deaths in the pre-hospital period, in cases of penetrating injuries, and particularly in cases of chest trauma were evaluated as noteworthy findings. Integrated working of pre-hospital emergency healthcare services with trauma centres would enable the development of trauma care and reduce the rates of preventable deaths.

Effectiveness of the Stewart Method in the Evaluation of Blood Gas Parameters.

OBJECTIVES: In 1981, Peter A. Stewart published a paper describing his concept for employing Strong Ion Difference. In this study we compared the HCO3 levels and Anion Gap (AG) calculated using the classic method and the Stewart method. METHODS: Four hundred nine (409) arterial blood gases of 90 patients were collected retrospectively. Some were obtained from the same patients in different times and conditions. All blood samples were evaluated using the same device (ABL 800 Blood Gas Analyzer). HCO3 level and AG were calculated using the Stewart method via the website AcidBase.org. HCO3 levels, AG and strong ion difference (SID) were calculated using the Stewart method, incorporating the parameters of age, serum lactate, glucose, sodium, and pH, etc. RESULTS: According to classic method, the levels of HCO3 and AG were 22.4±7.2 mEq/L and 20.1±4.1 mEq/L respectively. According to Stewart method, the levels of HCO3 and AG were 22.6±7.4 and 19.9±4.5 mEq/L respectively. CONCLUSIONS: There was strong correlation between the classic method and the Stewart method for calculating HCO3 and AG. The Stewart method may be more effective in the evaluation of complex metabolic acidosis.

Neopterin, homocysteine, and ADMA levels during and after urticaria attack.

BACKGROUND/AIM: Urticaria is a vascular skin reaction characterized with papules and plaques. Neopterin is accepted as an immunologic marker and an indicator of activation of the immune system. Homocysteine and asymmetric dimethylarginine (ADMA) are the markers of increased vascular resistance. Alteration in vascular resistance has a role in the pathogenesis of urticaria. We aimed to investigate whether there is a relationship between urticaria and neopterin, homocysteine, or ADMA. MATERIALS AND METHODS: The study is designed as a prospective descriptive study and patients with a diagnosis of urticaria in the emergency department were included in the study. Demographic data and characteristics of the disease were recorded. Neopterin, homocysteine, and ADMA levels were measured both during and after urticaria attacks. All data were statistically analyzed. RESULTS: The differences between neopterin levels measured during and after urticaria attacks were statistically significant (P < 0.001). The differences between homocysteine and ADMA levels measured during and after urticaria attacks were not statistically significant (P > 0.05). CONCLUSION: Our results indicate that neopterin levels in patients with urticaria attacks are increased and the level of neopterin is also a useful parameter in acute urticaria. Further studies should clarify whether homocysteine levels contribute to diagnosis of acute urticaria. However, no relation was found between ADMA and urticaria.

Effectiveness of hyperbaric oxygen and ozone applications in tissue healing in generated soft tissue trauma model in rats: an experimental study.

BACKGROUND: Soft tissue trauma is a type of acute traumatic ischemia. We investigated in this study whether the edema, inflammation and ischemia caused by the trauma could be affected positively by hyperbaric oxygen (HBO) and ozone therapy. METHODS: Soft tissue trauma was generated in a total of 63 adult male Sprague-Dawley rats. Subsequently, rats were divided into three groups. The first group was treated with ozone, the second group with HBO, and the third group served as controls. Tissue and blood samples were taken at the end of the procedures. Tissue lipid peroxidation (LPO), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), inducible nitric oxide synthase (iNOS), heme oxygenase (HO)-1, and hypoxia-inducible factor (HIF)-1 levels were detected. Hematoxylin-eosin staining was used to determine the inflammation and edema histopathologically. RESULTS: We also detected HIF-1 activity, which decreases when the oxygen concentration increases, HO-1 activity, which has anti-inflammatory effects, and iNOS activity, which releases in any type of acute case. We determined a statistically significant reduction in iNOS and LPO levels in both the HBO and Ozone groups. A significant decrease in inflammation was detected in both the Ozone and HBO groups compared with the Control group, and a significant decrease in edema was detected in all three groups. CONCLUSION: We think that HBO and Ozone therapy have beneficial effects on biochemical and histopathological findings. Related clinical trials will be helpful in clarifying the effects.

A comparison of suprascapular nerve block and procedural sedation analgesia in shoulder dislocation reduction.

OBJECTIVES: Dislocation of the shoulder joint is one of the most common dislocations. The reduction procedure is a painful procedure. In this study, 2 different treatment groups were compared for pain control during shoulder dislocation reduction. It was aimed to evaluate the differences between the groups in reduction, success, length of hospital stay, complications, side effects, patient-physician satisfaction, and ease of application. METHODS: The study was planned to be prospective and randomized. As procedural sedation analgesia (SA), titration of ketamine 1 to 2 mg/kg was administered intravenously to group 1. Suprascapular nerve block (SNB) was applied under ultrasound guidance (USG) to group 2. Conformity to normal distribution of variables was examined with the Kolmogorov-Smirnov test. The χ2 test and Fisher test were used to evaluate differences between the groups in categorical variables and the Mann-Whitney U test, and a value of P<.05 was accepted as statistically significant. RESULTS: The study comprised a total of 41 patients; 20 in the group 1 and 21 in the group 2. No statistically significant difference was determined between the groups in terms of age (P=.916), sex (P=.972), reduction success (P=.540), and patient-physician satisfaction (P=.198). The time spent in the emergency department (ED) by patients in the SA group was signficantly longer compared with the SNB group. No side effects were observed in the SNB group. CONCLUSIONS: Suprascapular nerve block, which can be easily applied under USG in the ED, can be evaluated as a good alternative to SA in the reduction of shoulder dislocations.

An analysis of firearms-related deaths between 1993-2010: a retrospective study.

BACKGROUND: Firearm injuries (FI) are the most common cause of death among military personnel. In this study, postmortem examination and autopsy records of deaths resulting from firearm injuries recorded in the Department of Forensic Medicine of Gulhane Military Medical Academy between 1993-2010 were examined retrospectively. METHODS: We evaluated the characteristics of 153 firearm deaths accounting for 36.6% of all medical-legal autopsies. The cases included 152 men (99.3%) and 1 woman (0.7%). RESULTS: The mean age of the cases was 23.1 years (±4.7; range, 20-43 years). The manner of death was determined in all cases with 41.8% of cases identified as suicide and 39.9% as homicide. The most common sites of firearm entrance wounds were the head and neck region (n=109, 71.2%), the chest (n=26, 17%), or the abdomen (n=14, 9.2%). The type of firearm was not clear in most cases. CONCLUSION: In conclusion, complete forensic and medical records will facilitate the rapid and accurate conclusion of the legal process and will enhance future retrospective studies.