Clinical assessment and short-term mortality prediction of older adults with altered mental status using RASS and 4AT tools.

BACKGROUND: Altered mental status (AMS) in older adults is a common reason for admission to emergency departments (EDs) and usually results from delirium, stupor, or coma. It is important to proficiently identify underlying factors and anticipate clinical outcomes for those patients. AIM: The primary objective of this study was to reveal and compare the clinical outcomes and etiologic factors of older patients with delirium, stupor, and coma. The secondary objective was to identify the 30-day mortality risk for those patients. METHOD: The study was conducted as prospective and observational research. We included patients aged 65 years and older who presented with new-onset neurological and cognitive symptoms or worsening in baseline mental status. Patients who presented no change in their baseline mental status within 48 h and those who needed urgent interventions were excluded. Selected patients were assessed using RASS and 4AT tools and classified into three groups: stupor/coma, delirium, and no stupor/coma or delirium (no-SCD). Appropriate statistical tests were applied to compare these 3 groups. The 30-day mortality risks were identified by Cox survival analysis and Kaplan-Meier curve. RESULTS: A total of 236 patients were eligible for the study. Based on their RASS and 4AT test scores: 56 (23.7%), 94 (40.6%), and 86 (36.4%) patients formed the stupor/coma, delirium and no-SCD groups, respectively. There was no statistical difference in the three groups for gender, mean age, and medical comorbidities. Neurological (34.7%), infectious (19.4%), and respiratory (19.0%) diseases were the leading factors for AMS. Post-hoc tests showed that CCI scores of the delirium (6, IQR = 3) and stupor/coma (7, IQR = 3) groups were not significantly different. The 30-day mortality rates of stupor/coma, delirium, and no-SCD groups were 42.%, 15.9%, and 12.8%, respectively (p < 0.005). The hazard ratio of the stupor/coma group was 2.79 (CI: 95%, 1.36-5.47, p = 0.005). CONCLUSION: AMS remains a significant clinical challenge in EDs. Using the RASS and 4AT tests provides benefits and advantages for emergency medicine physicians. Neurological, infectious, and respiratory diseases can lead to life-threatening mental deterioration. Our study revealed that long-term mortality predictor CCI scores were quite similar among patients with delirium, stupor, or coma. However, the short-term mortality was significantly increased in the stupor/coma patients and they had 2.8 times higher 30-day mortality risk than others.

Geriatric mortality risk factors in emergency department for non-traumatic abdominal pain.

OBJECTIVES: The study aimed to determine the factors affecting the mortality of geriatric patients presenting to the emergency department with non-traumatic abdominal pain, as well as the associations of these factors with mortality. BACKGROUND: With the increasing number of elderly patients, early recognition of patients with risk-bearing diagnoses is crucial. METHODS: This prospective cross-sectional study included 466 patients over 65 years of age who were admitted to THE emergency department of a tertiary hospital and consented to participate. Data was collected on patient demographics, vital signs, chronic diseases, laboratory investigations, diagnoses, disposition, and 30-day mortality. RESULTS: The results showed that the mean patient age was 74.42 years, with 47.4 % being male and 52.6 % female. 15.6 % of the patients had nonspecific causes. The risk of mortality within one month was 5.797 times higher in patients with neurological diseases and 5.183 times higher in those with a history of surgery. A one-unit decrease in hemoglobin increased the mortality risk by 0.656 times. CONCLUSION: This study highlights the importance of careful evaluation of elderly patients with neurological diseases, previous surgical history, and anemia in the emergency department with non-traumatic abdominal pain (Tab. 5, Ref. 18).

Improving Risk Stratification of Patients With Chest Pain in the Emergency Department.

OBJECTIVE: The HEARTS3 score is used to predict acute coronary syndrome by evaluating the findings of chest pain patients at the end of the second hour. Additionally, the American College of Cardiology (ACC)/American Heart Association (AHA) 2014 non-ST elevation acute coronary syndrome (NSTE-ACS) management guideline suggests assessing cardiac troponin levels at the third and sixth hours as a class 1A recommendation. This study aimed to explore the value of the HEARTS3 score for the evaluation of patients with chest pain and its utility for determining whether a patient is eligible for early discharge from the emergency department. MATERIAL AND METHODS: This study was prospectively conducted between March 1, 2016 to May 31, 2016 at the ED of the Research and Training Hospital in Istanbul. A total of 136 patients were evaluated, and HEARTS3 scores were calculated at the second, third, and sixth hours. Receiver operating characteristic (ROC) curves were used to calculate the specificity, sensitivity, negative predictive value (NPV) and positive predictive value (PPV) of these scores. The primary outcome was the occurrence of major adverse cardiac events (MACEs) within 30 days. RESULTS: In total, 29 patients with MACEs and 107 patients without MACEs were identified within 30 days. Based on the ROC curve, the cutoff value for early discharge was 6. The area under curve (AUC) values were 0.943, 0.963 and 0.976 at the second, third, and sixth hours, respectively. The sensitivity of the second-hour HEARTS3 score was 96.6%, and the NPV was 98.6%. Both the sensitivity and NPV reached 100% at the sixth hour. CONCLUSION: The HEARTS3 score was considered a feasible method for the prediction of MACEs. We concluded that a patient with a HEARTS3 score less than 6 may be discharged without serial troponin and ECG examination.

Assessment of the role of neutrophil extracellular traps in SARS-CoV-2 pneumonia.

BACKGROUND: Abnormal neutrophil extracellular traps are associated with lung diseases, thrombosis, increased mucosal secretion in the airways. The aim of this study is to evaluate the possible place of the most specific NETosis marker Cit-H3 protein in diagnostic algorithms by revealing its relationship with the severity, mortality and prognosis of SARS-CoV-2 pneumonia. PATIENTS AND METHODS: Patients (n = 78) who applied to the Emergency Department between March 11, 2020 and June 10, 2020, with positive SARS-CoV-2 polymerase chain reaction (PCR) test and lung involvement were included in the prospective study. Serum Cit-H3 levels and critical laboratory parameters were measured at baseline on the day of clinical deterioration and before recovery/discharge/death. Cit-C3 levels were determined by enzyme immunassay method. RESULTS: Cit-H3 levels in patients with SARS-CoV-2 pneumonia during their first admission to the hospital were significantly higher compared to the healthy control group (p < 0.05). Repeated measurements of Cit-H3 levels of the patients significantly correlated with D-dimer, procalcitonin, Neutrophil/ Lymphocyte ratio, lymphocyte, CRP, and oxygen saturation. Cit-H3 levels of the patients who died were significantly higher than that of those who survived (p < 0.05). Cit-H3 levels were found to be statistically significantly higher in patients who developed acute respiratory distress syndrome, were admitted to the intensive care unit, and had mortality (p < 0.05). CONCLUSIONS: Cit-H3 plays a role in inflammatory processes in SARS-CoV-2 pneumonia, and changes in serum Cit-H3 levels of these patients can be used to determine prognosis and mortality (Tab. 5, Fig. 1, Ref. 21).

ACE2 and ANGII levels in patients with COVID-19 based on thoracic tomography findings and PCR test results.

INTRODUCTION: Reverse transcriptase polymerase chain reaction tests and thoracic tomography have been widely employed in the diagnosis of the disease, but doubts about their sensitivity still persist. Also there are controversial results about ACE2 and AngII levels according to the severity of disease. In this study, we aimed to analyze the ACE2 and AngII levels in patients with suspected COVID-19 based on polymerase chain reaction test results and thoracic tomography findings and to examine their relationship with disease severity. METHODOLOGY: Patients with suspected COVID-19 in the emergency department were divided into 4 groups according to thoracic tomography findings and PCR test results. The in-hospital mortality of patients was recorded. ACE2 and AngII levels in patients were analyzed according to groups and severity of the disease. RESULTS: ACE2 levels for the patients with suspected COVID-19 were significantly lower than in the control group, but AngII levels were higher (not statistically significant). The mean age and male sex ratio of patients who developed acute respiratory distress syndrome (ARDS) and died were significantly higher than those who survived. Whereas there was no difference in ACE2 levels in patients with severe diseases such as ARDS and mortality, their AngII levels were significantly lower. CONCLUSIONS: It can be suggested that decreased ACE2 levels combined with increased AngII levels are determinative at disease onset and in the development of lung damage. However, decreased AngII levels are more determinative in patients with severe diseases such as ARDS and mortality.

Role of plasma angiotensin II and angiotensin-converting enzyme 2 levels on prognosis and mortality in hypertensive patients with COVID-19.

Introduction: SARS-CoV-2 requires angiotensin-converting enzyme 2 (ACE2) to enter the cell. In our study, we aimed to investigate the role of angiotensin-converting enzyme 2 and angiotensin II plasma levels on prognosis and mortality in patients with isolated hypertension, patients with chronic diseases in addition to hypertension and patients with COVID-19 without comorbidities, in accordance with the use of renin-angiotensin-aldosterone system inhibitor. Materials & methods: In the study, patients diagnosed with COVID-19 were divided into three groups. Angiotensin II and ACE2 levels were compared by comorbidities, antihypertensive drugs used, intensive care hospitalization and termination of patients. The relationship between angiotensin II and ACE2 levels and service and intensive care times was investigated. Findings: A total of 218 patients were enrolled in our study, including 68 patients diagnosed with COVID-19 without comorbidities, 33 patients diagnosed with isolated hypertension and 117 patients with other chronic diseases in addition to hypertension. There was no statistically significant difference between the comorbid disease groups between angiotensin II and ACE2 levels of the patients enrolled in the study. The rate of patients admitted to the intensive care unit was 17.9%, and the mortality rate was 11.5%. Results: In our study, we did not obtain significant findings regarding angiotensin II and ACE2 levels on presentation that can be used in prognosis and mortality of COVID-19 patients and development of future treatment methods.

Vitamin D Poisoning; Hypercalcemia in a Case with Richter Transformation.

In addition to modern medicine, the search for complementary and alternative medicine has been present for malignancy patients in every period. Confusion, polyuria, polydipsia, anorexia, vomiting, and muscle weakness are symptoms of acute poisoning and are related to hypercalcemia. In our case, a 52-year-old male patient applied to the Emergency Department(ED) with abdominal pain and weakness for two days. In this article, we wanted to present a case with vitamin D poisoning that occurs after the phytotherapy in a patient who developed chronic lymphocytic leukemia (CLL) to Richter transformation. In some patients, especially at ED, taking a high dose of vitamin D history can be challenging. In patients with hypercalcemia, a careful history should be taken, and it should be questioned as "Vitamin D use" rather than "Drug use" since families do not accept the vitamins as drugs.

Efficacy of Serum Angiotensin II Levels in Prognosis of Patients With Coronavirus Disease 2019.

OBJECTIVES: We aimed to determine serum angiotensin II levels in patients with coronavirus disease 2019 infection and to investigate the effect of these levels on the prognosis of the disease. DESIGN: The study was planned prospectively and observationally. SETTING: The study was conducted in a tertiary university hospital. PATIENTS: Coronavirus disease 2019 patients older than 18 years old, polymerase chain reaction test positive, with signs of pneumonia on tomography, and hospitalized were included in the study. ICU need, development of acute respiratory distress syndrome, and in-hospital mortality were considered as primary endpoints. INTERVENTIONS: Blood samples were taken from patients three times for angiotensin II levels. MEASUREMENTS AND MAIN RESULTS: Angiotensin II levels were studied by enzyme-linked immunosorbent assay method. The SPSS 24.0 program (Statistics Program for Social Scientists, SPSS, Chicago, IL) was used to analyze the data. A total of 112 patients were included in the study, of which 63.4% of the patients were men. The serum angiotensin II levels were statistically significantly lower in the patients with coronavirus disease 2019 compared with the healthy control group (p < 0.001). There was no statistical significance between the serum angiotensin II levels measured at three different times (p > 0.05). The serum angiotensin II levels of the patients with acute respiratory distress syndrome were found to be statistically significantly lower than those without acute respiratory distress syndrome in three samples collected at different clinical periods (p < 0.05). The angiotensin II levels of the patients who required admission to the ICU at all three times of blood sample collection were found to be statistically significantly lower than those who did not (p < 0.05). Although the serum angiotensin II levels of the patients who died were low, there was no statistically significant difference in mortality at all three times (p > 0.05). CONCLUSIONS: The serum angiotensin II levels decrease significantly in patients with coronavirus disease 2019, and this decrease is correlated with lung damage.

Distribution and cost of Syrian refugees operated on in Southeastern Anatolia, Turkey.

BACKGROUND: As a result of the Syrian civil war, > 5 million Syrian citizens have fled to neighbouring countries, particularly Turkey, under refugee status. AIMS: To analyse the cost and justification for surgery of Syrian refugees treated in a secondary care hospital in Sanliurfa, Southeastern Turkey, close to the Syrian border. METHODS: We enrolled 1458 Syrian refugees who were operated upon between 2012 and 2015. The data were obtained through a retrospective search of the hospital information system. Patients were divided into traumatic and nontraumatic cases. Injured body regions, anaesthetic technique, duration of operation, length of hospital stay, sociodemographic features and treatment cost were recorded and analysed. RESULTS: Length of the hospital stay was 7.66 (0.31) days for all 1458 patients. The most common operations were orthopaedic, urological and cranial surgery. The total healthcare costs while patients stayed in hospital was ~US$ 2 million, and cost per patient was US$ 1400. CONCLUSIONS: The number of trauma operations performed has declined between 2012 and 2015. Health spending on refugees is an indicator of the economic burden on the country.

Interpretation of the effect of CYP2C9, VKORC1 and CYP4F2 variants on warfarin dosing adjustment in Turkey.

It was aimed to underline the importance and explain the meaning of genetic testing in warfarin dosing and investigate and evaluate the contributions of the CYP2C9, VKORC1, and CYP4F2 variants in a Turkish population. Two hundred patients were genotyped for CYP2C9 (rs1799853, rs1057910 and rs56165452), VKORC1 (rs9934438, rs8050894, rs9923231, rs7294 and rs2359612) and CYP4F2 (rs2108622), yet, only 127 patients were found suitable for further evaluation in terms of their personal response to warfarin due to long term usage and available INR and dose usage information. The DNA sequences were determined by the ABI PRISM 3100 Genetic Analyzer to 3130xl System (Applied Biosystems, Foster City, California). Warfarin dose application suggestions by warfaringdosing.org, FDA and MayoClinic were followed. Dose requirements in the Turkish population were found higher than the suggested doses by warfarindosing.org. The multivariate logistic regression analysis reveals the utilization of VCORC1 genetic evaluation is valuable in warfarin dosing (low and moderate vs. high) in this study (p < 0.001). The present study provides findings for clinicians to adapt the genetic data to the daily practice. We observed that the VKORC1 variant showed a more potent impact in warfarin dosing in this study.

Bleeding Complications in Warfarin-Treated Patients Admitted to the Emergency Department.

BACKGROUND: Increased use of warfarin for the treatment and prophylaxis of many diseases has increased the frequency of adverse events. Emergency departments (EDs) are the first places where early interventions for bleeding and other complaints related to warfarin use are performed. This study assessed the characteristics of patients receiving warfarin and the risk factors for bleeding complication among those admitted to the ED. METHODS: Patients admitted to the ED for any reason other than trauma during a 1-year period were retrospectively reviewed. The study population consisted of 96 patients who had received warfarin and had an international normalized ratio (INR) ≥ 3. Patient demographics and medical history were recorded. RESULTS: The mean age of the patients (female, 52.1%) was 64.9 ± 14.5 years. Fatigue was the most common presenting complaint (61%). At least one major and/or minor bleeding event had occurred in 32 (33.3%) of the patients. Patients with (n = 32) and without (n = 64) bleeding complications did not significantly differ with respect to age, sex, reason for warfarin initiation, duration of warfarin use, concomitant diseases, and concurrent medications. There were also no significant differences in the distribution of patient admissions in terms of season at presentation, INR level, and weekly warfarin dose. CONCLUSIONS: While the parameters evaluated in this study did not significantly differ among warfarin-treated patients, they may nonetheless pose a risk of bleeding. Further large-scale and long-term studies that take into account biological variation are required to precisely identify the risk factors for bleeding.

Role of H-FABP values in determining the etiologic factors of the cardiac injuries.

INTRODUCTION: Cardiac injury resulting from blunt thoracic trauma is a frequent clinical occurrence which is difficult to diagnose. Our purpose in this study was to research whether H-FABP, which is a new marker for the diagnosis of cardiac injury, can be used in this patient group. METHODS: 50 patients with blunt thoracic injury who were admitted to our emergency service within a period of 8 months and 50 cases as controls were included in our study. RESULTS: Of the 50 patients with blunt thoracic injury in our study, 88% were male while 12% were female. The average age of the patients was 43 ± 15.15. While 27 (54%) of the 50 patients with blunt thoracic injury had cardiac injury, 23 (46%) did not have cardiac injury. The results of the statistical analyses showed a significant association between thorax trauma and cTnI, CPK, CPKMB and H-FABP (p<0.05). While there was a significant association between cardiac injury resulting from thoracic trauma and cTnI, ECG and TTE (p<0.05), there was no significant association between CPK, CPKMB and H-FABP (p>0.05). CONCLUSION: In thoracic traumas, cardiac injury diagnosis can be made as a result of the assessment with Troponin-I, ECG and ECHO. For cardiac injury diagnosis, wide scale prospective studies are needed for H-FABP use.

Heart-type fatty acid binding protein and cardiac troponin I may have a diagnostic value in electrocution: A rat model.

Although cardiac injury is known to be the leading cause of death in electrocution, the differential diagnosis can be challenging in forensic practice since the exact mechanism is poorly understood and there is lack of reliable markers. Thus, death due to electrocution may be classified as a negative autopsy. The serum levels of and myocardial immunostaining loss for cardiac troponins and heart-type fatty acid binding protein (H-FABP) are highly sensitive and specific biomarkers of ischemic myocardial damage and may have a diagnostic value in determining the myocardial injury or the cause of death due to electrocution. Due to this reason, a rat model is prepared to investigate these issues. Thirty-two Wistar albino female rats were included and randomly divided into four groups of eight subjects. Group A was the control group, and Group B, C, and D were exposed to electrical current of 110 volt (V), 220 V, and 600 V, respectively. Blood samples and the hearts were collected from the rats for biochemical and immunostaining analyses. It is found that increased serum H-FABP levels were significantly associated with the higher voltage immediately after electrocution. However, serum cardiac troponin I (cTnI) levels did not show significant changes associated with the higher voltage in the early period of electrocution. As for histopathological examinations, the only significant difference in myocardial immunostaining loss was for H-FABP in Group B. Serum H-FABP levels may have a diagnostic value in the early postmortem period immediately after electrocution. Besides, it seems that serum H-FABP levels may be a better indicator than those of cTnI to reflect the myocardial damage in the early period of the electrocution.

Beware Postpartum Shortness of Breath.

Peripartum cardiomyopathy (PPCM) is one of the potentially life-threatening complications of pregnancy. We report a case of a 36-year-old female patient who presented with shortness of breath, swelling of feet after giving birth to triplets, and her tests revealed that left ventricle is dilated with its diameter on the borderline and she had EF 35% with advanced systolic dysfunction. Anterior wall and septum were severely hypokinetic. In the presence of these findings, the patient was evaluated as PPCM. PPCM must be considered in the differential diagnosis of a patient presenting with shortness of breath and swelling of feet, which are also common in pregnancy.

Low Oxalobacter Formigenes Colonization is Associated with Reduced Bone Mineral Density in Urinary Stone Forming Patients.

INTRODUCTION: Lower bone mineral density (BMD) and reduced Oxalobacter formigenes colonization are common findings in urolithiasis patients. But none of the studies conducted investigated the relationship between decreased bone mineral density and reduced Oxalobacter colonization. Here we evaluated the relation between BMD and O. formigenes colonization in urolithiasis patients. MATERIALS AND METHODS: 50 stone formers (48.9 ± 11.9 years) and 50 control (47.2 ± 13.4 years) adult male subjects were included in the study. Alterations in O. formigenes colonization were determined as absolute O. formigenes count from fecal samples by real time polymerase chain reaction using species specific primers. BMD was evaluated from t- and z- scores calculated by using dual energy absorptiometry in the total femoral neck and lumbar spine (L2-L4). RESULTS: Low BMD was observed in 18 (36%) urinary stone forming patients and in 7 (14%) control subjects in the lumbar area (p < 0.05). The mean O. formigenes count in stone formers and control subjects were 19,257 (5,791 ± 1,117.93) and 143,850 (2,815,725 ± 3,946,044.7) (p < 0.05) respectively. We observed a correlation between decreased lumbar BMD and O. formigenes colonization and testosterone levels in stone formers. Our results indicated that diminished O. formigenes colonization in the gut of urinary stone forming subjects was associated with reduced BMD.

Does usage of peritonism tests in an emergency department have any benefit?

AIM: To evaluate the usage of inspiration, expiration, cough, and heel drop jarring tests that are applied for determination of peritonism in cases with acute abdominal pain. METHODS: A prospective study based on observation of patients between 16-65 years of age and presented to the Emergency Department within a 3-month period starting from June 2007, was conducted. The patients were asked to rate their pain level between "0" and "10". Following the measurement of the vital signs, 4 tests were conducted by an emergency medicine resident. The medical records of all the patients were reviewed after 3 months. Data concerning clinical diagnosis, hospital admission and discharge processes, and surgical results, were all recorded. RESULTS: Seventy-seven patients had peritonism tests performed. Inspiration test was positive in 29 (of 51, 56.9%) patients admitted to the hospital. However, there was no correlation between the cases admitted to the hospital and the other 3 tests (p more than 0.05). Twenty-one (of 34, 61.8%) patients which have been subjected to surgical treatment, showed positive inspiration test results. Surgical treatment was performed on nine (of 11, 81.8%) patients who showed positive results for all 4 tests. CONCLUSION: The applied tests are helpful in determining a serious abdominal disease, particularly alongside findings of rebound, tenderness, and laboratory results.

Value of the serum I-FABP level for diagnosing acute mesenteric ischemia.

PURPOSE: This study examined the feasibility of using the serum intestinal fatty acid binding protein (I-FABP) level for the early diagnosis of acute mesenteric ischemia, and investigated whether it contributes to the clinical decision-making process. METHOD: Thirty patients diagnosed with acute mesenteric ischemia, 27 patients with other types of acute abdomen who presented with acute abdomen symptoms but were not diagnosed with acute mesenteric ischemia, and 20 healthy people were included in the study. Mesenteric ischemia was confirmed by a pathological evaluation in patients who underwent intestinal resection due to detection of mesenteric ischemia during surgery. RESULTS: There was no significant difference in the leukocyte counts and D-dimer levels between subjects with mesenteric ischemia and acute abdomen due to other causes (p > 0.05). There was a significant difference in the serum I-FABP level between these groups (p < 0.001). CONCLUSION: The I-FABP level is a more reliable parameter for diagnosing acute mesenteric ischemia compared to leukocytosis and D-dimer elevation.

Contrast-induced nephropathy risk due to emergency contrast-enhanced computed tomography.

OBJECTIVE: In this study, we aimed to compare serum creatinine, blood urea, and glomerular filtration rate (GFR) levels of patients at baseline and 48 h after the administration of radiocontrast agent in the emergency department. METHOD: We prospectively enrolled 114 patients who underwent contrast-enhanced computed tomography scan and had a baseline creatinine level of 1.5 mg/dl or less. Serum creatinine and blood urea levels were measured at baseline and 48 h after the administration of radiocontrast agent. GFR and Mehran risk score were calculated at baseline and 48 h after the administration of radiocontrast agent. RESULTS: Baseline mean serum creatinine was 1.03±0.25 mg/dl. Forty-eight hours after the administration of radiocontrast agent, mean serum creatinine was 1.04±0.31 mg/dl, baseline mean blood urea was 8.14±4.04 mmol/l, mean blood urea was 8.42±4.42 mmol/l, baseline mean GFR was 76.74±27.08 ml/min, and mean GFR was 77.21±27.92 ml/min. There were no significant differences between baseline and 48 h after the administration of radiocontrast agent serum creatinine, blood urea levels, and GFR (P>0.05). CONCLUSION: There was no statistically significant difference between basal and 48 h after the administration of radiocontrast agent serum creatinine and GFR levels of patients who were enrolled in this study. Results had shown that administration of intravenous radiocontrast agent (≤100 ml) for emergency imaging in the emergency department did not produce a risk for contrast-induced nephropathy in patients with serum creatinine levels of 1.5 mg/dl or less.

The role of heart-type fatty acid-binding protein in predicting properties of coronary atherosclerosis in patients with acute coronary syndrome.

INTRODUCTION: Fatty acid-binding protein (FABP) is an independent predictor of cardiac events. However, the relation between increasing FABP and coronary atherosclerosis is unknown. We have investigated the relation between FABP and angiographic properties of coronary atherosclerosis in patients with acute coronary syndrome (ACS). METHODS: The study population consisted of 93 patients with ACS (mean age: 56±10 years). Patients presenting to the emergency department within 2 h after onset of anginal symptoms were enrolled in the study. FABP was measured at second, fourth and sixth hours of chest pain. Cut-off FABP was accepted as 1.9 ng/ml. Coronary atherosclerosis was assessed with diseased vessel number (≥50 and ≥70% luminal narrowing), Gensini and extent scores. RESULTS: Median FABP-2 was 2.9 ng/ml (interquartile range: 1.6-10.4). Peak FABP was measured at fourth hour [median: 35.0 ng/ml (interquartile range: 2-77)]. There was a nonsignificant relation between angiographic findings and FABP-2. At fourth hour, Gensini, extent score and diseased vessel number were significantly higher above the cut-off level of FABP-4 (Gensini score: 3.7±3.4 vs. 6.2±3.4, P=0.005; extent score: 11.1±10 vs. 22.3±19.2, P=0.007; diseased vessel: 0.7±0.6 vs. 1.6±1.0, P=0.003, respectively). The sensitivity of FABP-2 for at least 50% lesion was 70%. The highest sensitivity was obtained at fourth hour (85% for ≥50% and 88% for ≥70% lesions). The sensitivity and positive predictive values for revascularization were 70 and 77% for FABP-2, 89 and 80% for FABP-4 and 89 and 81% for FABP-6. CONCLUSION: FABP levels are closely related with angiographic properties of patients with ACS. FABP may be an early and important marker for predicting the coronary anatomy and decision of treatment.