Publications by authors named "Saira Nisar"

Introduction: The contribution of endothelial injury to the pathogenesis of burn shock is not well characterized. This work investigates potential mechanisms underlying dysregulation of endothelial barrier function by burn patient plasmas.

Methods: Plasma was collected from burn-injured patients (n = 8) within 4 h of admission.

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  • * In a study using a swine model, researchers found that levels of syndecan-1 (SDC-1), a marker indicating damage to blood vessel linings, significantly increased in animals with inhalation injury compared to those without, showing a clear link between inhalation and vascular injury.
  • * The findings suggest that understanding how inhalation injuries cause endothelial damage could lead to better treatments for burn victims, particularly in managing the shock that often follows such injuries.
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Angioedema is one of several life-threatening clinical scenarios that lacks clarity on when a patient requires intubation. We present a case of angiotensin-converting enzyme-inhibitor-induced angioedema with peri-oral swelling and normal airway measurements on ultrasound, who was intubated with an abundance of caution and extubated successfully. Current tests for intubation and extubation, such as traditional bedside assessments and the cuff leak test, vary in reliability for angioedema and similar urgent situations.

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Article Synopsis
  • Negative pressure wound therapy (NPWT) can help improve the adherence of meshed split thickness skin grafts (mSTSGs) when used alongside autologous skin cell suspension (ASCS) after burn injuries.
  • A study using Duroc pigs showed that both NPWT and traditional dressings led to successful healing with no significant differences in re-epithelialization, pigmentation, or blood vessel density between the two methods.
  • However, NPWT demonstrated advantages in terms of reduced graft loss and improved elasticity, suggesting that NPWT can safely be used with ASCS and mSTSGs in treating full-thickness burns.
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Purpose: To perform a single unit review of surgical approaches to the pineal region, looking to ascertain if trends were identifiable regarding the extent of resection and the rate of post-operative complications between approaches. We hypothesised that each approach would offer different exposure of the pineal region which may result in poor access to certain areas of the tumour. This may lead to residual tumour in reliable and predictable locations, and an awareness of these regions could help with pre-operative planning and lead to higher levels of suspicion when inspecting these regions intraoperatively.

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Electrical injury has low incidence but is associated with high morbidity and mortality. Variability in diagnosis and management among clinicians can lead to unnecessary testing. This study examines the utility of an electrical injury treatment algorithm by comparing the incidence of testing done on a cohort of patients before and after implementation.

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Continuous bedside pulse oximetry (SpO2) is universally used to monitor oxygenation for patients supported on veno-venous extracorporeal membrane oxygenation (VV-ECMO). Yet, elevated carboxyhemoglobin (COHb), a known event in VV-ECMO, diminishes the reliability of SpO2. This retrospective cohort study aims to assess the accuracy of SpO2 compared with oxyhemoglobin (SaO2) and quantify COHb levels by co-oximetry in the VV-ECMO population.

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Bacterial infections are the leading cause of morbidity and mortality in burn-injured patients. and are among the most common pathogens responsible for infections in thermally injured patients. These and other pathogens have developed a variety of virulence factors to colonize and infect hosts.

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Surgical research is potentially invasive, high-risk, and costly. Research that advances medical dogma must justify both its ends and its means. Although ethical questions do not always have simple answers, it is critically important for the clinician, researcher, and patient to approach these dilemmas and surgical research in a thoughtful, conscientious manner.

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Hidradenitis suppurativa is a chronic inflammatory skin disease, with significant morbidity secondary to its recurrent painful and exudative lesions. Given limited research on the cytoarchitecture of hidradenitis suppurativa, this study describes the microscopic structure and cell surface markers present in hidradenitis suppurativa tissue to better understand the disease and identify potential therapeutic targets. Skin biopsies of hidradenitis suppurativa lesions from patients who underwent surgical excision (n = 11) were compared with grossly normal-appearing perilesional skin (n = 5) and normal skin biopsies from unaffected individuals (n = 4).

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Hidradenitis suppurativa (HS) is a highly morbid chronic inflammatory skin disease resulting in painful and purulent lesions classically occurring in areas with a high density of apocrine glands such as the groin and axillae. This is the case of a 53-year-old male with medically refractory Hurley stage III HS affecting multiple anatomical sites including the dorsum of the right foot, an atypical location. Throughout his hospital course, he underwent a series of surgical excision and graft procedures to treat extensive HS lesions on various anatomical locations.

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Standard bolus-dosed antibiotic prophylaxis may not inhibit growth of antibiotic resistant colonic bacteria, a cause of SSIs after colorectal surgery. An alternative strategy is continuous administration of antibiotic throughout surgery, maintaining concentrations of antibiotics that inhibit growth of resistant bacteria. This study is a pilot comparing bolus-continuous infusion with bolus-dosed cefuroxime prophylaxis in colorectal surgery.

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Introduction: This study analysed the effect of age on survival in patients undergoing major hepatectomy (MH) for colorectal liver metastases (CRLM). The effect of adjuvant chemotherapy (AC) with age was also assessed.

Method: Patients undergoing MH for CRLM between 1996 and 2011 were reviewed.

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The patterning of nanoparticles represents a significant obstacle in the assembly of nanoscale materials and devices. In this report, cysteine residues were genetically engineered onto the virion surface of tobacco mosaic virus (TMV), providing attachment sites for fluorescent markers. To pattern these viruses, labeled virions were partially disassembled to expose 5' end RNA sequences and hybridized to virus-specific probe DNA linked to electrodeposited chitosan.

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