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Ventilation-perfusion matching in early-stage of prone position ventilation: a prospective cohort study between COVID-19 ARDS and ARDS from other etiologies.
Physiol Meas
January 2025
Department of Critical Care Medicine, Peking Union Medical College Hospital, No.1 Shuaifuyuan, Dongcheng District, Dongcheng-qu, 100730, CHINA.
Prone positioning is a therapeutic strategy for severe Acute Respiratory Distress Syndrome (ARDS). In COVID-19-associated ARDS (CARDS), the application of prone position has shown varying responses, influenced by factors such as lung recruitability and SARS-CoV-2-induced pulmonary endothelial dysfunction. This study aimed to compare the early impact of pronation on lung ventilation-perfusion matching (VQmatch) in CARDS and non-COVID-19 ARDS patients (non-CARDS).
View Article and Find Full Text PDFDiagnostic Potential of 99mTc-macroaggregated Albumin Scintigraphy in the Diagnosis of Hepatopulmonary Syndrome: Insights from Two Case Studies and Critical Review of Literature.
Indian J Nucl Med
November 2024
Department of Nuclear Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Hepatopulmonary syndrome (HPS) is a rare pulmonary vascular complication of chronic liver disease characterized by dilatation of pulmonary capillaries leading to vascular shunting and systemic hypoxemia. Diagnosis of HPS requires documentation of intrapulmonary vasodilation (IPVD), the two most common imaging studies performed for the detection of IPVD include transthoracic contrast echocardiography (TTCE) and 99m-Tc-macroaggregated albumin scintigraphy (99mTc-MAA scan). TTCE has high sensitivity and thus, is the preferred initial investigation, while 99mTc-MAA scan is highly specific and plays an adjuvant role in diagnosis.
View Article and Find Full Text PDFAssociated Cardiac and Extracardiac Anomalies in Patients with Abnormal Coronary Artery from the Pulmonary Artery.
Pediatr Cardiol
January 2025
Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München (DHM), Technische Universität München (TUM), Lazarettstr. 36, 80636, Munich, Germany.
Anomalous origin of coronary arteries from the pulmonary artery (ACAPA) are rare but clinically significant condition with high mortality if left untreated. Even more rarely, ACAPA is associated with other congenital heart defects. From 1974 to 2024, 120 patients with anomalous coronary arteries connected to the pulmonary artery were retrospectively analyzed.
View Article and Find Full Text PDFBackground: Annually, approximately 7.6 million individuals experience a new ischemic stroke, and roughly 25% of all ischemic strokes are cardiogenic in origin, carrying a high risk of recurrence, death and disability. To prevent future ischemic strokes, especially in younger individuals, it is crucial to detect and treat direct and indirect cardioembolic sources.
View Article and Find Full Text PDFCase Report: Type Ib Abernethy malformation.
Arab J Gastroenterol
January 2025
Department of Radiology, West China Hospital, Sichuan University, Chengdu, PR China. Electronic address:
Congenital extrahepatic portosystemic shunt, also known as Abernethy malformation, is a rare anatomic vascular malformation. Patients with Abernethy malformation may present with abdominal pain, abnormal liver function tests, hepatopulmonary syndrome, pulmonary hypertension, and/or portosystemic encephalopathy. Accurate identification of the shunt and portal vein and effective management of complications is vital in these patients.
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