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Organometallic Chemistry of Propargylallenes: Syntheses, Reactivity, Molecular Rearrangements and Future Prospects.
Molecules
November 2024
School of Chemistry, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland.
Alkynylallenes offer the varied reactivity patterns of two different multiple bond linkages either separately or in concert. Initially, a short overview of their syntheses, structures, rearrangement mechanisms and synthetic utility, especially when treated with transition metal reagents such as gold(I), silver(I), platinum metals or metal carbonyls, is presented. Subsequently, we focus on the particular case of 1,2-dien-5-ynes (propargylallenes), whereby the shortness of the single atom bridge, and the consequent proximity of the allenyl and alkynyl moieties, facilitates metal-mediated interactions between them.
View Article and Find Full Text PDFDiagnosis of pulmonary sarcoidosis comorbid with non-specific interstitial pneumonia: a case report.
BMC Pulm Med
October 2024
Department of Pulmonary and Critical Care Medicine, Institute of Respiratory Health, Center of Precision Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
Article Synopsis
- Previous studies have detailed imaging features of pulmonary sarcoidosis, but there’s no consensus on identifying an NSIP-like pattern in high-resolution CT scans as a distinct type for diagnosis.
- A 53-year-old male with a history of respiratory symptoms was found to have both pulmonary sarcoidosis and unexpected NSIP-like changes in his CT scan, confirmed by lung tissue pathology.
- The case suggests that NSIP can occur as a rare comorbidity with pulmonary sarcoidosis, potentially complicating its typical imaging presentation.
Antineutrophil Cytoplasmic Antibody Vasculitis after Coronary Artery Bypass Grafting.
Case Rep Surg
August 2024
Division of Cardiothoracic Surgery Department of Surgery Cardiovascular Research Center, Rhode Island Hospital Rhode Island Hospital Alpert Medical School of Brown University, Providence, Rhode Island, USA.
Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis is a group of rare autoimmune disorders associated with the presence of ANCA autoantibodies. We present the first reported case of acute ANCA-associated vasculitis following coronary artery bypass grafting in a 74-year-old male presenting on postoperative day 13 with shortness of breath, orthopnea, and acute kidney injury. Renal biopsy ultimately showed focal necrotizing and crescentic glomerulonephritis, and the patient was successfully managed with corticosteroids and outpatient rituximab.
View Article and Find Full Text PDFCase report of increased left ventricular end-diastolic pressure with pulsatile left ventricular assist device.
Eur Heart J Case Rep
June 2024
Department of Cardiology, Thoraxcenter, Erasmus University Medical Center, Rotterdam, The Netherlands.
Background: Left ventricular assist devices (LVADs) are increasingly utilized in cardiogenic shock and high-risk percutaneous coronary interventions (PCIs). These devices aspirate and expel blood from the left ventricle (LV) into the aorta, consequently reducing left ventricular end-diastolic pressure (LVEDP). We report a case of unexpected LVEDP rise under LV-to-aorta LVAD in the context of transcatheter aortic valve implantation (TAVI) and concomitant multi-vessel PCI.
View Article and Find Full Text PDF'Bubbles and esophagus: A tale of unexpected and otherwise unexplained pain'.
Radiol Case Rep
May 2024
Department of Radiology, Aga Khan University, Karachi, Pakistan.
Boerhaave's syndrome is a potentially fatal emergency, typically induced by forceful retching, which leads to increased intra-esophageal pressure. It commonly presents with vague symptoms such as chest pain or more classic symptoms like subcutaneous emphysema and vomiting. We present an unusual case of Boerhaave syndrome secondary to rapid and excessive intake of carbonated drinks in a 22-year-old male, who presented to our emergency department with atypical symptoms of fever and shortness of breath.
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