Publications by authors named "Mats Warmerdam"

Article Synopsis
  • Near-infrared fluorescence imaging in cancer surgery currently lacks a consistent method to assess the effectiveness of fluorescent dyes, leading to challenges in translating research findings from lab to clinical settings.
  • The goal of this study is to create a semi-automatic method that provides an objective way to measure fluorescent signals in tissue samples post-surgery.
  • The new method was tested and showed better consistency than traditional techniques, indicating it can enhance the reliability and standardization of studies involving fluorescent dyes in clinical applications.
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Background: Differentiating high-grade dysplasia (HGD) and T1 colorectal cancer (T1CRC) from low-grade dysplasia (LGD) in colorectal polyps can be challenging. Incorrect recognition of HGD or T1CRC foci can lead to a need for additional treatment after local resection, which might not have been necessary if it was recognized correctly. Tumor-targeted fluorescence-guided endoscopy might help to improve recognition.

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Objective: In existing risk stratification and resuscitation guidelines for sepsis, a hypotension threshold of systolic blood pressure (SBP) below 90-100 mmHg is typically used. However, for older patients, the clinical relevance of a SBP in a seemingly 'normal' range (>100 mmHg) is still poorly understood, as they may need higher SBP for adequate tissue perfusion due to arterial stiffening. We therefore investigated the association between SBP and mortality in older emergency department (ED) patients hospitalised with a suspected infection.

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Objective: Due to atypical symptom presentation older patients are more prone to delayed sepsis recognition. We investigated whether initial disease severity before emergency department (ED) treatment (including treatable acute organ dysfunction), quality of ED sepsis care and the impact on mortality was different between patients older and younger than 70 years. If differences exist, improvements are needed for ED management of older patients at risk for sepsis.

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Background: Sepsis recognition in older emergency department (ED) patients is difficult due to atypical symptom presentation. We therefore investigated whether the prognostic and discriminative performance of the five most commonly used disease severity scores were appropriate for risk stratification of older ED sepsis patients (≥70 years) compared to a younger control group (<70 years).

Methods: This was an observational multi-centre study using an existing database in which ED patients who were hospitalized with a suspected infection were prospectively included.

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