Publications by authors named "Nicholas Lysak"

Malperfusion is a complication of acute aortic dissection associated with substantially increased morbidity and mortality. Although endovascular treatment of the dissection with a stent graft to cover the intimal tear and reexpand the true lumen will often be sufficient to treat distal malperfusion, persistent or delayed malperfusion will necessitate additional interventions. Endovascular strategies to increase true lumen expansion include bare metal dissection stent placement and percutaneous fenestration.

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Unlabelled: Identify alterations in gene expression unique to systemic and kidney-specific pathophysiologic processes using whole-genome analyses of RNA isolated from the urinary cells of sepsis patients.

Design: Prospective cohort study.

Setting: Quaternary care academic hospital.

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Background: Suboptimal triage of critically ill patients with surgical sepsis may contribute to adverse outcomes. Patients transferred to a tertiary care center after spending 24 hours or longer at an outside facility were compared with patients who had early triage to a tertiary care center with the null hypothesis that management parameters and outcomes would be similar between groups.

Methods: This prospective observational cohort study included 308 patients treated for surgical sepsis in a surgical intensive care unit at a tertiary care center.

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Objective: Conventional clinical wisdom has often been nihilistic regarding the prevention and management of acute kidney injury (AKI), despite its being a frequent and morbid complication associated with both increased mortality and cost. Recent developments have shown that AKI is not inevitable and that changes in management of patients can reduce both the incidence and morbidity of perioperative AKI. The purpose of this narrative review was to review the epidemiology and outcomes of AKI in patients undergoing vascular surgery using current consensus definitions, to discuss some of the novel emerging risk stratification and prevention techniques relevant to the vascular surgery patient, and to describe a standardized perioperative pathway for the prevention of AKI after vascular surgery.

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Article Synopsis
  • Acute and chronic kidney diseases (AKI and CKD) significantly impact cardiac surgery patients, leading to worse postoperative outcomes and increased hospital costs.
  • Both types of kidney disease are linked to higher mortality rates, longer hospital stays, and increased resource use, with worse outcomes observed even in mild cases.
  • There is an urgent need for improved early diagnosis and intervention strategies to mitigate the negative effects of AKI and CKD in surgical patients.
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