Publications by authors named "Hadi Hatoum"

Introduction Pneumomediastinum and pneumothorax are uncommon complications in COVID-19 patients. The exact prevalence, etiology, and outcomes are not well known. We report a case series of patients in our institution with COVID-19 related pneumomediastinum and pneumothorax and address these questions.

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Article Synopsis
  • * After a CT-guided procedure to drain the fluid, her condition initially improved but rapidly worsened, leading to further investigation.
  • * Echocardiography discovered a significant pericardial effusion causing cardiac tamponade; although an emergency procedure to drain it temporarily helped, her health declined further, and she eventually passed away with malignant cells found in the fluid.
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Legionella most commonly presents as pneumonia but can have disseminated involvement, presenting as extra-pulmonary disease involving gastrointestinal, neurological, cardiac, renal, and musculoskeletal systems, and skin and soft tissues. We present a case of a patient with pneumonia, rhabdomyolysis, renal failure, hypertriglyceridemia, pancreatitis, and cutaneous involvement. This case highlights the breath of involvement legionella can have, including the never previously documented manifestation of hypertriglyceridemia and severe rhabdomyolysis with the highest creatinine kinase recorded.

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Objectives: In response to endoplasmic reticulum (ER) stress, endothelial cells initiate corrective pathways such as the unfolded protein response. Recent studies suggest that reactive oxygen species produced on the ER may participate in homeostatic signaling through Ras in response to ER stress. We sought to identify mechanisms responsible for this focal signaling pathway.

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Background: Major surgeries are associated with postoperative morbidity and mortality. Current preoperative evaluation fails to identify patients at increased risk of postoperative complications. This study is aimed to determine whether the Short Form-36 health survey (SF-36) and the 6-minute walk test (6-MWT) are useful predictors of postoperative complications after major surgery.

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The epithelial and endothelial cells lining the alveolus form a barrier essential for the preservation of the lung respiratory function, which is, however, vulnerable to excessive oxidative, inflammatory, and apoptotic insults. Whereas profound breaches in this barrier function cause pulmonary edema, more subtle changes may contribute to inflammation. The mechanisms by which cigarette smoke (CS) exposure induce lung inflammation are not fully understood, but an early alteration in the epithelial barrier function has been documented.

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Evidence suggests that activated protein C (APC) attenuates acute lung injury (ALI) through antithrombotic and anti-inflammatory mechanisms. The aim of this study was to determine the effects of APC on ALI in adult rats exposed to hyperoxic environment. Rats were divided into control, hyperoxia, hyperoxia + APC, and APC.

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