Splinter Hemorrhages
Splinter Hemorrhages - Related Videos
14:06
Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
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Cited by 10 •
2012
Pooled DNA sequencing is a fast and cost-effective strategy to detect rare variants associated with complex phenotypes in large cohorts. Here we describe the computational analysis of pooled, next-generation sequencing of 32 cancer-related genes using the SPLINTER software package. This method is scalable, and applicable to any phenotype of interest.
02:29
Modeling Drug-Induced Hemorrhage in Zebrafish Larva
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2025
In this video, fertilized zebrafish embryos are dechorionated under a stereo microscope and then exposed to a cholesterol synthesis inhibitor, leading to the development of blood vessel ruptures and brain hemorrhages in the larvae. Hemorrhagic larvae, identifiable by distinct red spots, are subsequently separated under a microscope for further analysis.
07:57
Integrated Compensatory Responses in a Human Model of Hemorrhage
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Cited by 11 •
2016
The purpose of this protocol is to demonstrate the techniques for measuring compensatory responses to reduced central blood volume using lower body negative pressure as a noninvasive experimental model of human hemorrhage which can be used to quantify the total integration of compensatory mechanisms to blood volume deficit in humans.
16:31
Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
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Cited by 24 •
2011
The Hemorrhagic Shock model has been a reliable and reproducible resource facilitating the identification and understanding of signaling cascades associated with inflammation and end-organ damage after trauma. This article provides a step-by-step description of surgical and mechanical aspects associated with the Hemorrhagic Shock experimental procedure in mice.
10:44
Modeling Intracerebral Hemorrhage in Mice: Injection of Autologous Blood or Bacterial Collagenase
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Cited by 60 •
2012
Clinically relevant animal models of intracerebral hemorrhage (ICH) are needed to extend our knowledge of hemorrhagic stroke and to examine novel therapeutic strategies. In this study, we describe and evaluate two ICH models that implement unilateral injections of either autologous whole blood or bacterial collagenase into the basal ganglia (corpus striatum) of mice.
FAQs
The visible streak follows the direction of nail growth because bleeding from damaged small vessels in the nail bed tracks longitudinally beneath the nail. This explains why the finding appears narrow and elongated rather than as a randomly shaped discoloration. The growth pattern therefore provides a useful clue to how blood moved through the nail-bed tissues after vessel injury.
Minor trauma can damage small nail-bed vessels without causing a major wound elsewhere. Because such injuries are common, an isolated streak may reflect a local event rather than systemic disease. Asking about recent injury, pressure, or other nail stress helps clinicians place the finding in context and avoid giving nonspecific nail changes more diagnostic weight than they deserve.
The same visible nail-bed bleeding can arise in different clinical settings. Local vessel damage commonly explains individual findings, while systemic conditions may also produce them through broader vascular or disease-related processes. This overlap means that the streak itself does not identify a cause. Clinicians must compare its pattern and timing with the patient’s history and other examination findings.
Number, distribution, timing, and associated findings are more informative than the presence of a single streak alone. Clinicians examine whether the changes are isolated or more widespread, when they appeared, and whether other relevant findings are present. These features help determine whether the observation is more consistent with an isolated event or warrants evaluation in a broader clinical context.
Assessment begins by documenting the nail findings and considering their number, distribution, and timing. The clinician then reviews the patient’s history and looks for associated examination findings that could support a local or systemic explanation. This combined approach is important because the nail observation is nonspecific and should be interpreted alongside, rather than apart from, the rest of the evaluation.
They may become clinically relevant when their pattern or associated findings fits a broader concern for infective endocarditis or vascular disease. The streaks do not establish either condition by themselves. Instead, clinicians use them as one observation within the assessment, combining the nail examination with timing, distribution, patient history, and other examination results before drawing conclusions.
Distribution and timing can help distinguish a potentially isolated nail-bed event from a finding that merits broader consideration. A clinician records when the streaks developed and how many nails are affected, then compares those details with the patient’s history and associated findings. The result is contextual information that guides further interpretation, not a standalone diagnosis or definitive test.