Author = Karakoyun, Salih

Proximal LAD Occlusion Detected by CTA of the Thoracic Aorta in a Patient with ROSC

Volume 10, Issue 2, Spring 2025, Pages 632-634

https://doi.org/10.30491/hpr.2025.517544.1491

Bünyamin Baytemur, Salih Karakoyun, Yasin Haydar Yartaşı, Gülşah Aktüre, Mustafa Boğan

Abstract Non-cardiac CT angiograms may be helpful when searching for the etiology of cardiac arrest in out-of-hospital cardiac arrest cases and may be effective in the decision of early percutaneous coronary intervention. We want to share an experience related to this topic. A 51-year-old male patient returned home after travelling by plane from abroad and suddenly collapsed while hugging his relatives at home, followed by cardiac arrest (CPA). CTA showed no obvious pathology in the aorta and pulmonary artery, but the proximal left anterior descending artery (LAD) branching from the left main coronary artery (LMCA) was not contrast enhanced and was thought to be an occluded lesion. The cardiology unit was contacted and the patient was taken to the emergency coronary angiography unit. Coronary angiography revealed a critical stenosis in the proximal LAD. In this case, the patient's heart rate was not suitable for a coronary CT angiography (90 beats/minute), and the option of slowing the heart down was not an option as the patient was unstable and had ROSC after CPA. In addition, no radiologic editing of the images for artifacts due to heart rate was performed. Thoracic aorta angiography is not a standard imaging method for coronary artery lesions. However, in this case, it raised suspicion of coronary artery occlusion and was indicative of an occlusion that could not be detected on ECG.

Studies on Platelets/Lymphocyte Ratio in PubMed Database; 13-Year Analysis

Volume 8, Issue 4, Autumn 2023, Pages 369-374

https://doi.org/10.30491/hpr.2024.442383.1415

Hasan GÜMÜŞBOĞA, Süleyman Aziz, Salih Karakoyun, Kudret Selki, Mustafa BOĞAN

Abstract Background: Platelets/Lymphocyte Ratio (PLR) has been investigated not only in hematological diseases but also in clinical conditions involving almost all organs and systems including inflammatory, neoplastic, and cardiovascular diseases.
Objectives: This study was planned to perform an analysis of the studies on PLR through the PubMed database, to measure the impact of the relevant studies on the diagnosis of diseases.
Methods: This analysis was performed on 16.01.2021 by searching with the word group "platelet lymphocyte ratio", "platelet lymphocyte ratio" in the PubMed database.
Results: The study included 723 articles, of which 580 (80.2%) were retrospective. It was determined that 420 (58.1%) of the studies were conducted by a single clinical department, 55.6% (n=402) were indexed in SCI/SCI-E index, 56.7% (n=410) were Open Access, and 58.8% (n=425) had significant results related to the clinical condition studied. Most publications were from Turkey (n=239, 33.1%), China (n=211, 29.2%), and Japan (n=55, 7.6%).
Conclusion: The majority of the analyzed studies were retrospective, and were SCI/SCI-E indexed. Their role in malignancy diagnoses was evaluated the most. A total of 59 different clinical conditions were evaluated and "platelet lymphocyte ratio" was found useful in the diagnosis of relevant clinical conditions in 58.8% of the studies. PLR is a value that is significantly associated with the diagnosis and prognosis of many diseases and can be obtained by a simple calculation from a complete blood count.