Introduction Haemorrhage from the injured extremity is a significant cause of preventable death in military settings. This study evaluated the effect of training on the efficacy of the combat application tourniquet (CAT) and to define standards for military personnel. Method Participants from a training tank battalion were randomised. Data collected included age, body mass index, mean arterial pressure, hand dominance, femoral artery diameter and skin thickness. The study involved tourniquet application times (AT) and application success rates in basic, after-training and eyes-closed phases. Doppler ultrasound was used to identify the presence or absence of popliteal, radial and ulnar artery pulses. Results A total of 102 trainees participated. In the after-training phase, the left and right upper extremity ATs were 35±13.1 s, and 34.8±13.5 s and the right and left lower extremity ATs were 20.6±6.0 s and 20.5±5.5 s, respectively. The overall tourniquet success rates in three successive study phases were 69.6%, 82.4% and 91.2%, respectively. A negative significant relationship was found between extremity circumference and tourniquet success. Discussion The results show that the efficacy of CAT application increases with training. Further studies are required to investigate the reasons underlying application failures. This single group prospective randomised study involves level of evidence 4.

This study aimed to determine whether surgical multiple-choice questions generated by ChatGPT are comparable to those written by human experts (surgeons). The study was conducted at a medical school and involved 112 fourth-year medical students. Based on five learning objectives in general surgery (colorectal, gastric, trauma, breast, thyroid), ChatGPT and surgeons generated five multiple-choice questions. No change was made to the ChatGPT-generated questions. The statistical properties of these questions, including correlations between two group of questions and correlations with total scores (item discrimination) in a general surgery clerkship exam, were reported. There was a significant positive correlation between the ChatGPT-generated and human-written questions for one learning objective (colorectal). More importantly, only one ChatGPT-generated question (colorectal) achieved an acceptable discrimination level, while other four failed to achieve it. In contrast, human-written questions showed acceptable discrimination levels. While ChatGPT has the potential to generate multiple-choice questions comparable to human-written ones in specific contexts, the variability across surgical topics points to the need for human oversight and review before their use in exams. It is important to integrate artificial intelligence tools like ChatGPT with human expertise to enhance efficiency and quality.

HALP score is a scoring system consisting of hemoglobin, albumin, lymphocyte and platelet. It is different from other prognostic markers because it provides information about both inflammation and immunonutrition status. This study aims to evaluate the severity of the disease and the level of prognosis in patients diagnosed with acute diverticulitis. 190 patients diagnosed with acute diverticulitis between January 2017 and June 2023 were included in the study. The patients were divided into two separate groups according to the Hinchey classification. The prognostic effect of inflammatory markers and HALP score was examined. The median values of C-reactive protein, white blood cell count, neutrophil count, HALP score, and hospitalization duration were significantly higher in patients diagnosed with complicated diverticulitis than in those diagnosed with uncomplicated diverticulitis. (p < 0.001, p = 0.045, p = 0.004, p < 0.001 and p < 0.001, respectively). The distinguishing feature of the HALP score in predicting the complexity of the diagnosis of diverticulitis was evaluated using ROC analysis. Area Under Curve (AUC) value was found to be 0.723 (p < 0.001). According to the ROC curve, the sensitivity and specificity for the cut-off value of HALP score ≤44.1 were 66.7 % and 75.0 %, respectively. HALP score is an inexpensive parameter that can be used safely to determine the severity and prognosis of acute diverticulitis.

BACKGROUND: Bleeding remains the leading cause of potentially preventable deaths both in military and civilian pre-hospital trauma settings. Conventional extremity tourniquets do not control bleeding if an iliac artery or a common femoral artery is injured. Stopping junctional bleeding is particularly challenging and requires the use of specifically designed junctional tourniquets. SAM (R) Junctional Tourniquet (SJT (R), United States of America) and Tactical Abdominal Junctional Tourniquet (T-AJT (R), Fora Group Turkiye) have been actively used by Turkish security forces. This study questioned the effect of training on combat medics' successful junctional tourniquet applications and application times (AT). METHODS: Our research on two different junctional tourniquet models was designed as a prospective randomized, crossover, single-blinded study. All 40 participants in the study were attendees of a 12-week combat medic training course with updated medical approvals, which were used as an eligibility criterion. Randomization was performed by drawing T-AJT (R)-SJT cards. The study consisted of pre-training and after-training tourniquet application phases. In each study phase, all participants' AT and the presence or absence of arterial flow were recorded for each group. Finally, the combat medics were presented with a 6-question survey. RESULTS: Although training increased successful T-AJT (R) application rates, training was not statistically significantly associated with successful applications for any tourniquet types (p>0.05). The pre-training phase ATs for SJT (R) and T-AJT (R) were 55 +/- 11.8 and 93.8 +/- 2.9 seconds, respectively, and the difference was statistically significantly different (p<0.001). Likewise, after-training phase ATs for SJT (R) and T-AJT (R) were 49 +/- 22.6 and 79.2 +/- 17.5 seconds, respectively, and participants' SJT (R) ATs were significantly shorter (p<0.001). Overall, when participants' applied any of the tourniquet unsuccessfully, the odds of participants' lower Visual Analogue Scale scores were 0.2 (95% CI [0.08, 0.49]. p<0.001). CONCLUSION: Our study basically investigates the effects of training on effective tourniquet application. Unfortunately, our after training success rates remained unsatisfactory when compared to other studies. This is also the first study on T-AJT (R) tourniquet application, and further studies on its efficacy are also required.