Microcirculatory disturbances of the colon may contribute to the pathogenesis of inflammatory bowel disease. The aim of the study was to investigate the alterations of rectal blood perfusion in experimental colitis with reference to nitric oxide and heparin treatment. The study was carried out on 36 rats, divided into six groups: group I, control; group II, control + NG-nitro-L-arginine (L-NNA); group III, colitis without treatment; group IV, colitis + L-arginine; group V, colitis + L-NNA; group VI, colitis + heparin treatment. Experimental colitis was induced by 4% acetic acid enema, and 48 h after the enema, besides the measurement of rectal capillary blood flow by means of laser Doppler flowmetry, the serum interleukin-6 (IL-6) level and histopathological alterations within the rectal mucosa were examined. Experimental colitis resulted in a drop in rectal wall perfusion. L-Arginine and heparin treatment improved the microcirculatory values. The highest IL-6 level and the most advanced histopathological alterations were observed in the rats treated with L-NNA. L-Arginine treatment had no influence on IL-6 concentration, however it aggravated the inflammatory changes within the rectal mucosa. Heparin administration reduced the IL-6 values and also had a positive impact on the microscopic alterations within the rectal wall. It is concluded that heparin treatment has a beneficial effect on the microcirculatory disturbances and inflammatory changes observed in experimental colitis. The inhibition of nitric oxide-synthase aggravated the course of experimental colitis. L-Arginine administration improves the rectal blood flow but aggravates the histopathological alterations within the rectal wall.
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Int J Surg Case Rep
January 2025
Department of Vascular Surgery, Royal Perth Hospital, Perth 6000, Australia; University of Western Australia, School of Surgery, Perth 6000, Australia. Electronic address:
Introduction: We present a unique case of acute aortic occlusion secondary to infective endocarditis (IE).
Presentation Of Case: An Aboriginal Australian woman with systemic lupus erythematosus presented with fever, confusion, tachycardia, and tachypnoea and had cold, pulseless, insensate, and paralysed lower limbs. Computed tomography angiography revealed multifocal occlusion of the distal aorta and lower limb vessels.
Cochrane Database Syst Rev
January 2025
Department of Pharmacy Practice, University of Connecticut, Storrs, CT 06269, USA.
Background: Guideline-recommended strategies to interrupt chronic anticoagulation with warfarin or direct oral anticoagulants (DOAC) during the perioperative period of cardiac implantable electronic device (CIED) surgery differ worldwide. There is uncertainty concerning the benefits and harms of interrupted and uninterrupted anticoagulation in patients undergoing CIED surgery.
Objectives: To assess the benefits and harms of interrupted anticoagulation (IAC) with either warfarin or DOAC in the perioperative period of CIED surgery versus uninterrupted anticoagulation (UAC), with or without heparin bridging, during an equivalent time frame, for CIED surgery.
Background: Despite the guidelines' appeal to treat patients with deep vein thrombosis and low-risk pulmonary embolism in outpatient settings, the real-world evidence shows a high prevalence of inpatient therapy leading to unwarranted health resource utilization. The study aimed to assess the efficacy and safety of rivaroxaban in outpatient settings compared to inpatient treatment.
Methods: A propensity score-matched comparison with a historical inpatient population was performed based on a retrospective analysis of patients with deep vein thrombosis and without pulmonary embolism treated as outpatients with oral rivaroxaban.
Cureus
December 2024
Department of Anaesthesia and Intensive Care, Latifa Hospital, Dubai Health, Dubai, ARE.
We describe, to our knowledge, the first use in Dubai of extracorporeal life support (ECLS) in a patient who suffered intraoperative cardiac arrest due to presumed cardiac channelopathy. A 40-year-old patient presented for open myomectomy surgery. She had no other medical problems apart from obesity.
View Article and Find Full Text PDFInt Med Case Rep J
January 2025
National Scientific Center of Traumatology and Orthopedics Named After Academician Batpenov N.D., Astana, Kazakhstan.
Background: Cartilage defects in the knee joint are areas of damage and wear to the cartilage that normally covers and protects the ends of bones. These defects occur due to sudden injuries, such as trauma or sports accidents, or due to chronic conditions, such as osteoarthritis. Cartilage acts as a shock absorber (cushion absorber), reducing the impact of mechanical stress on the joints, which helps prevent bone damage during movement.
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