Assessment, Management and Quality of Care of Patients Presenting with Non-Traumatic Acute Chest Pain in the Emergency Room who had Acute Coronary Syndrome.

BACKGROUND: Non-traumatic Acute Chest pain (NTACP) is a common presentation in the emergency services of many hospitals and a key presenting symptom of acute coronary syndrome (ACS). However, there is a dearth of data on the system of care of ACS patients in our facilities. OBJECTIVE: Our objective was to evaluate the process of care of patients presenting with NTACP at a Tertiary Hospital emergency department (ED) in sub-Saharan Africa, using quality indicators of a universal chain of survival to identify any care gaps in the diagnosis and management of those with life-threatening ACS. METHODS: This was a retrospective cross-sectional study of adult patients ≥18 years of age, seen between July 2020 and June 2023 at the ED of the University College Hospital (UCH), Ibadan, Nigeria. We used this information to determine the frequency of ACS amongst those presenting with NTACP. From this subset, we assessed the main domains of quality indicators of the universal chain of survival in ACS care. These were, early symptom recognition and call for help; emergency medical service (EMS) evaluation and treatment; ED evaluation and treatment; and reperfusion therapy. RESULTS: We assessed a total of 4,306 patients who presented to the ED during the study period. Of these, 225 patients presented with NTACP. The mean ± SD age of these patients was 45.9 ± 18.4 years, with most between the ages of 40-49 years (20.9%) and males (50.7%). More than 80% of the patients presented to ED 12 hours after the onset of chest pain. Only 4.0% presented via an ambulance service which offered no prehospital guideline-directed medical treatment, and 70.7% were non-referred patients. Only 37.3%, 57.8%, 12.4%, and 8.9% had ECG, chest x-ray, echocardiography, and cardiac enzyme evaluation, respectively, in the acute phase of care. There were 29 (12.9%) patients who had a diagnosis of ACS. Two (6.9%) had medical revascularization with thrombolytic agents, while 8 (27.6%) and 19 (65.5%) were referred for primary and secondary PCI respectively. CONCLUSION: We found a high burden of late presentation and significant barriers to recommended guideline management of ACS patients, presenting with clinical features of NTACP in our hospital's ED.

CONTEXTE: La douleur thoracique aiguë non traumatique (NTACP) est une présentation courante dans les services d'urgence de nombreux hôpitaux et un symptôme clé du syndrome coronarien aigu (SCA). Cependant, il y a peu de données sur le système de soins des patients atteints de SCA dans nos établissements. OBJECTIF: Notre objectif était d'évaluer le processus de prise en charge des patients présentant une NTACP dans un service d'urgence d'un hôpital tertiaire en Afrique subsaharienne, en utilisant des indicateurs de qualité de la chaîne universelle de survie pour identifier les lacunes dans le diagnostic et la gestion de ceux présentant un SCA potentiellement mortel. MÉTHODES: Il s'agit d'une étude rétrospective transversale sur des patients adultes âgés de ≥18 ans, vus entre juillet 2020 et juin 2023 aux urgences de l'Hôpital Universitaire de l'Université d'Ibadan (UCH), Nigeria. Nous avons utilisé ces informations pour déterminer la fréquence du SCA parmi ceux présentant une NTACP. À partir de ce sous-ensemble, nous avons évalué les principaux domaines des indicateurs de qualité de la chaîne universelle de survie dans les soins du SCA. Ces domaines comprenaient la reconnaissance précoce des symptômes et l'appel à l'aide, l'évaluation et le traitement par les services médicaux d'urgence (SMU), l'évaluation et le traitement aux urgences, et la thérapie de reperfusion. RÉSULTATS: Nous avons évalué un total de 4 306 patients qui se sont présentés aux urgences au cours de la période d'étude. Parmi eux, 225 patients présentaient une NTACP. L'âge moyen ± écart-type de ces patients était de 45,9 ± 18,4 ans, la plupart ayant entre 40 et 49 ans (20,9%) et étant des hommes (50,7%). Plus de 80% des patients se sont présentés aux urgences 12 heures après le début de la douleur thoracique. Seulement 4,0% sont arrivés via un service d'ambulance qui n'a pas offert de traitement médical préhospitalier dirigé par des lignes directrices, et 70,7% étaient des patients non référés. Seuls 37,3%, 57,8%, 12,4% et 8,9% ont eu un ECG, une radiographie thoracique, une échocardiographie et une évaluation des enzymes cardiaques, respectivement, dans la phase aiguë des soins. Vingt-neuf patients (12,9%) ont été diagnostiqués avec un SCA. Deux (6,9%) ont subi une revascularisation médicale avec des agents thrombolytiques, tandis que 8 (27,6%) et 19 (65,5%) ont été référés pour une ICP primaire et secondaire, respectivement. CONCLUSION: Nous avons constaté une forte prévalence de présentation tardive et des obstacles significatifs à la gestion recommandée par les lignes directrices des patients atteints de SCA, se présentant avec des caractéristiques cliniques de NTACP dans les urgences de notre hôpital. MOTS CLÉS: Qualité des soins, Douleur thoracique non traumatique, Syndrome coronarien aigu, Troponines, Reperfusion, Intervention coronarienne percutanée, Département/salle d'urgence, Protocoles de diagnostic, Assurance santé.

Campylobacter-Associated Myocarditis in a 17-Year-Old Male.

Chest pain is a common presenting complaint in adolescent patients. Myocarditis is an important and potentially serious etiology of chest pain for clinicians who care for these patients to recognize. Myocarditis is commonly virally mediated, while extra-intestinal cardiac manifestations of bacterial enteritis, such as Campylobacter infections,are rare. Awareness of this uncommon, but potentially life-threatening pathophysiology is important for clinicians to understand.  In our case, a 17-year-old male presented with chest discomfort, chest pain on inspiration, headache, myalgias, vomiting, and diarrhea. He denied recent viral illnesses or immunizations. He lived in rural Ohio, swam recently in a freshwater lake, and had eaten home-prepared deer meat. His father had diarrhea as well. Presenting vital signs were within normal limits for age. The patient was obese (BMI 48.5), with an otherwise normal physical exam, including a thorough cardiopulmonary assessment. Laboratory workup revealed leukocytosis (16.1 x 109/L) and elevated high-sensitivity troponin (15,857 ng/L, >22,000 ng/L three hours later, ref range <20). Gastrointestinal polymerase chain reaction (PCR) panel detected Campylobacter spp., and stool culture was positive for Campylobacter jejuni. ECG, echocardiography, chest X-ray, and CT angiography were normal. Cardiac MRI revealed an increased T2 signal consistent with myocarditis. The patient was treated with non-steroidal anti-inflammatory drugs (NSAIDs) and azithromycin and had complete resolution in symptoms. He was exercise-restricted for six months.  Myocarditis is a potentially fatal pathology, representing a significant cause of sudden death in young adults. Myocarditis can present with a broad spectrum of signs and symptoms as well as variable clinical severity. Bacterial causes of myocarditis are uncommon, with Campylobacter among the least common. Campylobacter gastroenteritis, however, is quite common worldwide. Extra-intestinal and cardiac manifestations are rare; thus, it is important to maintain a high index of suspicion. Due in part to its rarity, treatment for Campylobacter-associated myocarditis is not well established. Treatment for myocarditis, regardless of etiology, is largely supportive in nature. Campylobacter-directed antibiotics, such as azithromycin, have been used successfully in adolescents with Campylobacter-associated myocarditis. Non-steroidal anti-inflammatory drugs (NSAIDs) are frequently used for symptom control, though their use remains controversial. Activity restriction is recommended for six months to reduce the risk of sudden cardiac death.  Myocarditis is an important cause of sudden death in young adults and is a rare extra-intestinal manifestation of Campylobacter bacterial gastroenteritis. Pediatric and adult providers should be aware of this presentation and its pathophysiology. They should also utilize a multi-modal workup, aggressive supportive care, appropriate subspecialty consultation, and appropriate antibiotics for patients with diarrheal illness and a high clinical suspicion for extra-intestinal involvement, such as myocarditis.

Ongoing Opioid Treatment and Symptoms of Myocardial Infarction in Calls to the Emergency Medical Services.

Background: Ongoing opioid treatment can potentially modify symptoms of myocardial infarction (MI) and cause a lack of recognition and treatment delay. Objectives: The purpose of this study was to examine MI symptoms and the time to hospitalization for patients in ongoing opioid treatment compared to patients without ongoing opioid treatment. Methods: We evaluated calls to the Copenhagen Emergency Medical Services in Denmark from 2014 to 2018. Calls were included when followed by hospitalization and a diagnosis of MI. Symptoms of MI and the time from call to hospitalization in patients in ongoing opioid treatment initiated prior to the onset of MI were compared to a control group of MI patients without opioid treatment. Results: In total, 6,633 calls were included; 552 calls from patients in opioid treatment and 6,081 calls from controls. Patients in opioid treatment were older and had more comorbidities than controls. Chest pain was less prevalent in MI patients in opioid treatment compared to controls (adjOR: 0.70; 95% CI: 0.57-0.85). The median time from the call to hospitalization was longer in patients in opioid treatment than in controls (50 vs 47 minutes; P = 0.006). Conclusions: In calls to the Emergency Medical Services, opioid treatment initiated prior to the onset of MI was associated with less frequent chest pain in MI. Therefore, awareness of ongoing opioid treatment may improve telephone triage of patients with MI, as symptom presentation in opioid-treated patients may differ and potentially challenge and delay the emergency response.

Diagnosis and management of spontaneous coronary artery dissection: Two cases and a review of the literature.

Introduction and importance: Spontaneous coronary artery dissection (SCAD) is a rare but potentially fatal condition, often underdiagnosed despite its significance in acute coronary syndrome (ACS). The true prevalence remains uncertain due to diagnostic challenges. Identifying SCAD cases is crucial for reducing mortality and morbidity, especially considering the recurrence risk. The authors present two cases highlighting the importance of multimodality imaging in diagnosing and managing SCAD. Case presentation: Case 1: A 53-year-old man with a history of brain aneurysm presented with chest pain and shortness of breath. Despite negative EKGs and stress tests, coronary computed tomography angiography (CCTA) revealed non-obstructive dissection flaps. Medical management improved his condition.Case 2: A 55-year-old woman with no significant medical history experienced recurrent chest pain. Initial tests were negative, but CCTA revealed SCAD. Further screening uncovered undiagnosed fibromuscular dysplasia. Clinical discussion: SCAD poses diagnostic challenges, often mimicking other cardiac conditions. Traditional tests may yield negative results, necessitating advanced imaging techniques like CCTA. Recognizing SCAD's association with connective tissue disorders (CTD) is vital for comprehensive patient care. The authors' cases emphasize the importance of a systematic approach to diagnosing chest pain, including noninvasive modalities and considering underlying etiologies. Conclusion: SCAD diagnosis requires a high index of suspicion, especially when traditional cardiac tests are inconclusive. Beyond treatment, patients should undergo further evaluation for CTDs, particularly in those with minimal risk factors for atherosclerosis. Increased awareness and a multimodal diagnostic approach are crucial for timely intervention and improved outcomes in SCAD patients. Learning objectives: The authors aim to increase awareness regarding different clinical presentations of SCAD to decrease the risk of missed or late diagnosis. The authors' case series also signifies the multimodal imaging approach's role in evaluating chest pain. Upon diagnosis of SCAD, it is imperative to go beyond treatment and implement a reverse algorithmic strategy to discover any underlying causes and risk factors for SCAD predisposition.

Evaluating the Effectiveness of the Salzburg Myocarditis Score in Differentiating Acute Coronary Syndrome and Myocarditis Among Adults Presenting With Acute Chest Pain: An Observational Study.

BACKGROUND: Acute chest pain is a common and challenging clinical presentation, necessitating rapid and accurate differentiation between potentially life-threatening etiologies like acute coronary syndrome (ACS) and acute myocarditis. The Salzburg Myocarditis Score (SMS), designed to aid in the early detection of myocarditis, offers a structured approach to this diagnostic challenge. However, the lack of a reliable clinical score for differentiating between these two conditions has been highlighted in recent literature, particularly in the context of limitations in using troponin levels alone for myocarditis diagnosis. OBJECTIVE: This study aimed to assess the diagnostic accuracy of the SMS for differentiating ACS and myocarditis in adult patients presenting with acute chest pain at Saveetha Medical College, Chennai, India. METHODS: A retrospective observational cohort study was conducted involving 100 consecutive patients presenting with acute chest pain. The SMS was calculated for each patient, and the final diagnoses of ACS or myocarditis were confirmed through comprehensive cardiac imaging (echocardiography or cardiac MRI) and additional biomarker analysis, following recommendations from established guidelines. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and a chi-square test were employed for statistical analysis. RESULTS: Among the 100 patients, 60 were diagnosed with ACS, and one was diagnosed with myocarditis. The SMS demonstrated high sensitivity (84.09%) and specificity (88.76%) for ACS, aligning with previous research findings. However, for myocarditis, the sensitivity was notably lower (25.81%), while specificity remained high (95.12%), consistent with concerns raised about the limitations of the score in identifying myocarditis. The PPV and NPV for ACS were 60% and 100%, respectively, while for myocarditis, the PPV and NPV were 2.5% and 100%, respectively. A chi-square test revealed a significant association between SMS predictions and the final diagnosis (p<0.001). CONCLUSION: The SMS is a valuable tool for identifying ACS in patients with acute chest pain. However, due to its low sensitivity for myocarditis, additional diagnostic tests, such as cardiac MRI, are crucial when myocarditis is suspected, despite a low SMS.

Effectiveness of rapid access chest pain clinics: a systematic review of patient outcomes and resource utilisation.

BACKGROUND: Rapid Access Chest Pain Clinics (RACPC) are widely used for the outpatient assessment of chest pain, but there appears to be limited high-quality evidence justifying this model of care. This study aimed to review the literature to determine the effectiveness of RACPCs. METHODS: A systematic review of studies evaluating the effectiveness of RACPCs was conducted to assess the quality of the evidence supporting this model. Outcomes related to effectiveness included major adverse cardiovascular events, emergency department reattendance, cost-effectiveness and patient satisfaction. Study quality was assessed using the RoB 2 tool, Newcastle-Ottawa quality assessment tool or the Consolidated Criteria for Reporting Qualitative Studies checklist, as appropriate. RESULTS: Thirty-two studies were eligible for inclusion, including one randomised trial. Five analytical cohort studies were included, with three comparing outcomes against non-RACPC controls. Three qualitative studies were included. Most reports were descriptive. Findings were consistent with RACPCs being associated with favourable clinical outcomes, reduced emergency department reattendance, cost-effectiveness and high patient satisfaction. However, there was significant heterogeneity in care models, and overall literature quality was low, with a high risk of publication bias. CONCLUSION: While the literature suggests RACPCs are safe and efficient, the quality of the available evidence is limited. Further high-quality data from adequately controlled clinical trials or large scare registries are needed to inform healthcare resource allocation decisions. PROSPERO REGISTRATION NUMBER: CRD42023417110.

Olanzapine-Induced Acute Pulmonary Embolism.

Pulmonary embolism is defined as the abrupt obliteration of the trunk or a branch of the pulmonary artery by an embolus most often from a deep vein thrombosis of the lower limbs. It is serious, underdiagnosed, and can be life-threatening. We report the case of a patient who presented with a massive acute pulmonary embolism while taking olanzapine. The interest of our case lies in its rarity, its seriousness but also the possibility of prevention and adequate management in the case of any suggestive clinical symptoms.

Low-Risk Chest Pain Patients: Exploring the Impact of Socioeconomy on Emergency Department Revisits.

BACKGROUND: Patients with chest pain and undetectable high-sensitivity cardiac troponin T (hs-cTnT) in the emergency department (ED) have a low short-term risk of cardiovascular events, but the frequency of ED revisits in this group is unknown. This study investigated the associations between disposable income and risk of ED revisits in patients with chest pain and undetectable hs-cTnT. METHODS: All first visits to 7 EDs in Sweden from 2010 to 2017 by patients with chest pain and hs-cTnT <5 ng/l were included. Incidence rate ratios (IRR) were calculated to estimate the ED revisit risk in relation to disposable income according to data obtained from Swedish government agencies (Statistics Sweden). RESULTS: Altogether, 61,539 patients with a first ED visit were included, in whom 126,650 revisits occurred. The adjusted 30-day risk of a revisit was 1.3- (IRR 1.32, 95% CI: 1.23-1.42) and 1.5-fold (IRR 1.50, 95% CI: 1.40-1.60), and for any revisit during the follow-up 1.6- (IRR 1.63, 95% CI: 1.59-1.66) and 1.8-fold (IRR 1.78, 95% CI 1.72-1.79), in patients with middle-low and low versus high income, respectively. During a median follow-up of 6.8 years, 1714 (2.8%) deaths occurred, and the adjusted cumulative incidence of major adverse cardiovascular events at 1 and 5 years was only 0.3% (95% CI: 0.2-0.4%) and 1.1% (95% CI: 0.8-1.4%) higher in patients with the lowest versus highest income levels. CONCLUSIONS: Disposable income level is inversely associated with the risk of ED revisits among patients presenting with chest pain and undetectable hs-cTnT, in whom cardiovascular risks are low.

Absence of Right Coronary Ostium with Single Coronary Artery: A Rare Anomaly.

Coronary arteries normally originate from two separate cusps from the aorta, and various anomalies can occur. One such anomaly is the single coronary artery (SCA), where the coronary arteries originate from a single ostium due to the absence of the contralateral ostia. In a rare case we encountered while evaluating a patient with atypical chest pain, computed tomography angiography revealed that the right ostia was absent, and the right coronary artery originated from the left circumflex artery. This subtype of SCA has been exceedingly rare, with only a few cases reported in the literature.

Thymoma-Related Chest Pain and Dyspnea in a Middle-Aged Caucasian Female With Myasthenia Gravis and Good's Syndrome: A Case Report.

Thymomas are rare tumors originating from thymic tissue, often associated with various paraneoplastic syndromes that can pose significant clinical management challenges. Myasthenia gravis, one of the most common paraneoplastic syndromes linked to thymomas, is characterized by autoantibodies targeting the neuromuscular junction, leading to muscle weakness exacerbated by repetitive use. Good's syndrome, an adult-onset immunodeficiency associated with thymomas, results in hypogammaglobulinemia and susceptibility to opportunistic infections, which can be life-threatening. We present the case of a 57-year-old Caucasian female with no prior medical history, who presented with a three-month history of progressive chest pain, dyspnea, and muscle weakness. A computed tomography (CT) scan of the chest revealed an anterior mediastinal soft tissue mass. Upon admission, a diagnostic workup, including serum anti-acetylcholine receptor antibodies and electromyography, confirmed the diagnosis of myasthenia gravis. Immune studies revealed hypogammaglobulinemia, consistent with Good's syndrome. The patient underwent complete surgical resection of the thymoma and received intravenous immunoglobulin (IVIG) therapy. This case report highlights the rarity and clinical significance of concurrent myasthenia gravis and Good's syndrome as paraneoplastic manifestations secondary to thymoma. Given the incidence of thymoma-associated paraneoplastic syndromes, early recognition and intervention are crucial for optimal outcomes. Future research may further elucidate the mechanisms underlying these associations, guiding improved management strategies.

Diagnostic Yield and Clinical Utility of Coronary Angiography Versus Coronary Function Testing in Women With Angina and Nonobstructive Coronary Arteries.

BACKGROUND: Approximately 50% of women referred for invasive coronary angiography have angina and nonobstructive coronary arteries, which includes coronary microvascular dysfunction, vasospastic angina, and other vasomotor disorders. We sought to determine the real-world diagnostic yield of invasive coronary angiography and coronary function testing in women with angina and nonobstructive coronary arteries. METHODS AND RESULTS: From 2018 to 2023, we enrolled 198 women who underwent either coronary angiography (CA) alone (n=99) or coronary function testing (CFT; n=99). Mean±SD age was 62±10 years (CA alone) compared with 57±10 years (CFT). Coronary angiography was interpreted as nonobstructive coronary artery disease more frequently after CA alone (79% versus 52%). Of the women who underwent CFT, 82% (N=81) were found to have vasomotor disorders, including coronary microvascular dysfunction (27%), vasospastic angina (32%), mixed coronary microvascular dysfunction/vasospastic angina (16%), endothelial dysfunction (10%; without spasm), elevated resting flow (2%), or symptomatic myocardial bridging (4%). Compared with women undergoing CA alone, medications were changed more frequently after CFT at 24 hours (41% versus 65%; P=0.001) and between 24 hours and 30 days (30% versus 44%; P=0.04) with intensification of antianginal therapy (79% versus 92%; P<0.0001) and increased use of calcium channel blockers (36% versus 63%; P<0.0001). CONCLUSIONS: Our findings demonstrate that women presenting with suspected ischemic heart disease undergoing CA alone only received an anatomic diagnosis, whereas >80% of women undergoing CFT received a specific diagnosis of a coronary vasomotor disorder and greater intensification of antianginal therapy.

Coronary Arteries Lesions in Kawasaki Disease: Risk Factors in an Italian Cohort.

Background: Kawasaki disease (KD) is a systemic vasculitis of medium arteries, particularly involving coronary arteries. Coronary artery lesions (CALs) is the most serious complication in the acute stage, potentially leading to ischemic cardiomyopathy, myocardial infarction and sudden death. Environmental factors and genetic background contribute to individual susceptibility to develop CALs. The aim of this study was to define the risk factors for CALs in an Italian cohort. Methods: Data of KD patients from 10 Italian sites were registered into a REDCap database where demographic and clinical data, laboratory findings and coronary status were recorded. KD was diagnosed according to AHA definition. We used multiple logistic regression analysis to identify independent risk factors for CALs. Results: A total of 517 patients were enrolled, mainly Caucasians (83.6%). Presentation was complete in 321 patients (62.8%) and IVIG responsiveness in 360 (70%). CALs developed in 136/517 (26.31%). Gender, age, ethnicity, clinical presentation, fever duration, non-coronary cardiac events, Hb, albumin and CRP were significantly different between patients with and without CALs, while seasonality was not. Male gender, age < 18 months, Asian ethnicity, incomplete presentation and fever > 10 days were independent risk factors for CALs. Conclusions: Age younger than 18 months, incomplete KD and longer fever duration are risk factors for CALs. Asian ethnicity also represents a risk factor in our Italian Cohort.

Target Heart Rate Formulas for Exercise Stress Testing: What Is the Evidence?

Exercise stress testing (EST) is commonly used to evaluate chest pain, with some labs using 85% of age-predicted maximum heart rate (APMHR) as an endpoint for EST. The APMHR is often calculated using the formula 220-age. However, the accuracy of this formula and 85% APMHR as an endpoint may be questioned. Moreover, failing to reach 85% APMHR (known as chronotropic insufficiency) may also indicate poor cardiovascular prognosis, but measurements, such as percentage heart rate reserve (%HRR), maximum rate pressure product (MRPP), and the maximum metabolic equivalent of tasks (METs) reached during EST may provide better prediction of cardiovascular outcomes than not reaching 85% of APMHR. There is a need to incorporate comprehensive measurements to improve the diagnostic and prognostic capabilities of EST.

To Be, or Not to Be Pectoral Angina? The Pain Is the Same, but the Etiology Is Different-A Case Report.

BACKGROUND: Chest pain is one of the most common causes of emergency room visits and also accounts for numerous visits to the family physician's office or Outpatient Clinics of cardiology or internal medicine. CASE REPORT: Here we present a case of a 48-year-old female patient who presented to our hospital emergency unit but refused hospital admission. She presented in our Outpatient Clinic with a complaint of typical chest pain indicating it to be of coronary origin. A computed tomography (CT) coronary angiography for the evaluation of this chest pain was indicated. While ruling out the coronary origin of this chest pain, we were surprised to have incidentally identified the presence of an esophageal tumor mass that had intimate contact with carina of the trachea. After the diagnosis of esophageal leiomyoma was made and its surgical treatment was performed, the patient was asymptomatic. Approximately one year after the surgical intervention was performed, following the cessation of antiplatelet therapy and statin, the patient returned to our Outpatient Clinic complaining of chest pain again with the same characteristics as previously presented, being terrified by the possibility of the recurrence of the esophageal leiomyoma. Upon resuming investigations, it was proven through coronary angio-CT evaluation that the etiology of the chest pain was indeed coronary this time. However, the patient still refused hospital admission and the performance of percutaneous coronary angiography with the potential implantation of a coronary stent. CONCLUSIONS: Chest pain can be due to various underlying pathologies and should not be neglected. A thorough investigation and timely management are key to treating this possible fatal symptom. In our case, the patient presented twice with the complaint of typical chest pain indicating a possible coronary event, but at the first presentation, it was due to esophageal leiomyoma, while a year later, the patient had similar pain, which was indeed this time due to coronary blockage. Hence, it is of utmost importance to think of all possible scenarios and to investigate accordingly, leaving no stone unturned.

Patients With Nonobstructive Coronary Artery Disease and Chest Pain: Impact of Obesity and Depressive Symptoms.

BACKGROUND: Chest pain (CP) in patients with nonobstructive coronary artery disease is a therapeutic challenge affecting morbidity and mortality. We aimed to identify clinical factors associated with CP in this population, hypothesizing that obesity and depressive symptoms are associated with CP. METHODS AND RESULTS: In 814 patients with angiographically confirmed nonobstructive coronary artery disease, we measured sociodemographic variables, clinical risk factors, medications, and Patient Health Questionnaire 9 scores for depressive symptoms. We assessed CP frequency and prevalence by using all items from the Seattle Angina Questionnaire angina frequency domain to generate an angina frequency composite score. In the overall sample (58.8±11.7 years old, 52.6% female), 42.8% had obesity, and 71.5% had CP, with an angina frequency composite score (SD) score of 76.4 (22.1). Compared with individuals without obesity, individuals with obesity had a higher prevalence (77.6% versus 67%, P<0.001) and more frequent CP (angina frequency composite score, 74.9 [SD, 22.2] versus 78.3 [SD, 21.9], P=0.02). Obesity was independently associated with CP occurrence (odds ratio [OR], 1.7 [95% CI, 1-2.9], P=0.04). Obesity's connection with CP was only in men: men with obesity had more frequent CP (angina frequency composite score, 75.8 [SD, 20.1] versus 82.1 [SD, 19.9], P=0.002) and more prevalent CP (79.5% versus 58.2%, P<0.001) than their counterparts insofar as men with obesity had similar CP to women. Patient Health Questionnaire 9 score (OR, 1.07 [95% CI, 1.01-1.13], P=0.03) was independently associated with CP and partly mediated the association between obesity and CP. CONCLUSIONS: Obesity and depressive symptoms were independently associated with CP in individuals with nonobstructive coronary artery disease, particularly in men, and depressive symptoms partly mediated this association.

The association of triglyceride-glucose index and combined obesity indicators with chest pain and risk of cardiovascular disease in American population with pre-diabetes or diabetes.

Aim: To investigate the correlation of the triglyceride-glucose (TyG) index and its combined obesity indicators with chest pain and cardiovascular disease (CVD) in the pre-diabetes and diabetes population. Methods: This cross-sectional investigation encompassed 6488 participants with diabetes and pre-diabetes who participated in the National Health and Nutrition Examination Survey (NHANES) between 2007 and 2016. The association of the TyG and combined obesity index with chest pain and CVD was investigated using weighted logistic regression models and restricted cubic spline (RCS) analysis. The receiver operating characteristic (ROC) curve analysis was performed to compare different indicators. Results: In multivariate logistic regression fully adjusted for confounding variables, our analyses revealed significant associations between TyG, TyG-BMI, TyG-WC, and TyG-WHtR and chest pain, with adjusted ORs (95% CI) of 1.21 (1.05, 1.39), 1.06 (1.01, 1.11), 1.08 (1.04, 1.14), and 1.27 (1.08, 1.48), respectively. For total-CVD, the adjusted ORs (95% CI) were 1.32 (1.08, 1.61), 1.10 (1.03, 1.17), 1.13 (1.06, 1.19), and 1.63 (1.35, 1.97), respectively, among which TyG, TyG-WC, and TyG-WHtR present curvilinear associations in RCS analysis (all P-nonlinear < 0.05). Furthermore, the ROC curve showed that TyG-WC had the most robust predictive efficacy for total-CVD, coronary heart disease (CHD), and myocardial infarction (MI), while TyG-WHtR had the best predictive ability for angina and heart failure. Conclusion: There are significant associations of TyG and its related indicators with chest pain and total-CVD among the pathoglycemia population. TyG-WC and TyG-WHtR demonstrated superior predictive capability for the incidence of cardiovascular events.

Type I Kounis syndrome in a young woman without chest pain: a case report.

BACKGROUND: Kounis syndrome is defined as the concurrence of acute coronary syndromes in the setting of allergic or anaphylactic reactions. It primarily affects men aged 40-70 years and is often associated with chest pain. This syndrome is often unrecognized and undiagnosed in clinical practice due to a low level of awareness. Herein, we present a case of type I Kounis syndrome in a young woman without chest pain. CASE PRESENTATION: A 28-year-old Japanese woman with a history of atopic dermatitis received a glycyrrhizin, glutathione, and neurotropin preparation (a preparation of inflamed skin extract from rabbits inoculated with vaccinia virus) at a dermatology clinic to treat pruritus caused by atopic dermatitis. Immediately after the administration, the patient developed abdominal pain and generalized body wheals. The patient was diagnosed with anaphylaxis and was transported to our hospital. She had no chest pain on arrival at our hospital; however, a 12-lead electrocardiogram showed ST elevation in leads I, aVL, V2, and V3, and an echocardiogram showed decreased wall motion in the anterior and lateral walls of the left ventricle. Sublingual nitroglycerin administration improved ST-segment elevation and left ventricular wall motion abnormalities. The patient underwent emergency coronary angiography, which revealed no significant stenosis, and was diagnosed with type I Kounis syndrome. CONCLUSION: Kounis syndrome without chest pain is rare in young women. Since it can be fatal in cases with severe allergic symptoms such as anaphylaxis, the possibility of concurrent acute coronary syndrome should be considered when treating systemic allergic reactions, regardless of age, sex, or the presence or absence of chest symptoms.

Acute coronary syndrome due to coronary vasospasm: a case report.

Coronary vasospasm can lead to decreased cardiac perfusion and result in acute coronary syndrome. Here is a case of a 49-year-old man presented to the emergency department with epigastric pain and nausea with normal initial electrocardiogram. However, 6 h later, the patient experienced severe chest pain prompting a repeat electrocardiogram demonstrating inferior ST-segment elevation with troponin I levels peaked at 1.2 ng/ml (normal range: 0.00-0.02 ng/ml). Coronary angiography revealed angiographic stenosis in the left circumflex territory of a left dominant system which resolved with intracoronary nitroglycerin administration indicating ischemia with nonobstructive coronary arteries secondary to coronary vasospasm. He was discharged on isosorbide mononitrate and amlodipine therapy and had no recurrence of symptoms during follow-up.

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