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Abstract Background The use of mechanical cardiopulmonary resuscitation device has been very prevalent in out-of-hospital cardiac arrest rescue. This study aimed to investigate whether the timing of mechanical cardiopulmonary resuscitation device set-up correlated with the the outcome of cardiac arrest patients. Methods We retrospectively reviewed adult nontrauma cardiac arrest cases in New Taipei City, Taiwan, from January to December 2022. Demographic data, intervention-related factors, and the time variables of mechanical cardiopulmonary resuscitation were collected. The outcomes included the return of spontaneous circulation and 24-hour survival. We compared patients who achieved spontaneous circulation and those who did not with univariate and multivariable regression analyses. Results In total, 1680 patients who received mechanical cardiopulmonary resuscitation were included in the analysis. Reducing the time interval from manual chest compression initiation to device setup was independently associated with the return of spontaneous circulation and 24-hour survival, especially in the subgroup of patients of initial shockable rhythm. Receiver operating characteristic analysis revealed that the outcome of patients with an initial shockable rhythm could be predicted by the mechanical cardiopulmonary resuscitation setup time, with areas under the curve of 60.8% and 63.9% for ROSC and 24-hour survival, respectively. The cutoff point was 395.5 s for patients with an initial shockable rhythm. Conclusion A positive correlation was found between early mechanical cardiopulmonary resuscitation intervention and the outcomes of out-of-hospital cardiac arrest patients. The time between manual chest compression and device setup could predict the return of spontaneous circulation and 24-hour survival in the subgroup of patients with initially shockable rhythm with the optimal cutoff point at 395.5 s.

Pediatric chest pain is a common chief complaint in the emergency department. Not surprisingly, children with chest pain are usually brought to the emergency department by their parents out of fear of heart disease. However, chest pain in the pediatric population is generally a benign disease. In this review, we have identified musculoskeletal pain as the most prevalent etiology of chest pain in the pediatric population, accounting for 38.7–86.3% of cases, followed by pulmonary (1.8–12.8%), gastrointestinal (0.3–9.3%), psychogenic (5.1–83.6%), and cardiac chest pain (0.3–8.0%). Various diagnostic procedures are commonly used in the emergency department for cardiac chest pain, including electrocardiogram (ECG), chest radiography, cardiac troponin examination, and echocardiography. However, these examinations demonstrate limited sensitivity in identifying cardiac etiologies, with sensitivities ranging from 0 to 17.8% for ECG and 11.0 to 17.2% for chest radiography. To avoid the overuse of these diagnostic tools, a well-designed standardized algorithm for pediatric chest pain could decrease unnecessary examination without missing severe diseases.

The article presents a case of a 74-year-old male who was presented with recurrent right lower quadrant abdominal pain and diarrhoea for several years. He has been taking Chinese herbs as medication for over 50 years. Also cited are the results of his computed tomography (CT), particularly the dendritic calcifications along the superior mesenteric vein and wall thickness of ascending and transverse colon, and his final diagnosis of phlebosclerotic colitis (PC).

Clinical Introduction: A 69-year-old woman presented to the ED with a chief complaint of recurrent vomiting for 3 weeks. She was afebrile, blood pressure was 100/67 mm Hg, HR was 114/min, RR was 19/min and oxygen saturation was 98%. On physical examination, she had mild epigastric tenderness without guarding. Blood tests were normal except for hyponatraemia of 128 mmol/L and hypokalaemia of 2.7 mmol/L. The ECG demonstrated sinus tachycardia with first-degree atrioventricular block. Chest radiograph posteroanterior view (CXR) was performed (figure 1).emermed;35/11/691/F1F1F1Figure 1Chest radiograph posteroanterior view. The patient presented to the ED with a complaint of recurrent vomiting for 3 weeks.Question: Due to continuous vomiting of this patient, which of the following is the most appropriate management?Abdominal ultrasonography.Chest and abdominal CT.Barium swallow.Oesophagogastroduodenoscopy (EGD). For answer see page 02For question see page 01. [ABSTRACT FROM AUTHOR]