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Related Concept Videos

Heart Valves01:16

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The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
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Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
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Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
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Mitral Stenosis III: Medical Management01:26

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Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
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Related Experiment Video

Updated: Oct 23, 2025

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
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Infant hydrocephalus: what valve first?

Benjamin J Hall1,2, Conor S Gillespie3,4, Geraint J Sunderland1,5

  • 1Department of Neurosurgery, Alder Hey Children's NHS Trust, Liverpool, UK.

Child'S Nervous System : Chns : Official Journal of the International Society for Pediatric Neurosurgery
|August 17, 2021
PubMed
Summary
This summary is machine-generated.

No optimal valve type for infant hydrocephalus is currently identified. Current evidence suggests no significant difference in non-infective failure rates among various valve subtypes in infants.

Keywords:
ChoiceHydrocephalusInfantSelectionShuntValve

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Area of Science:

  • Neurosurgery
  • Pediatric Surgery
  • Medical Device Research

Background:

  • Infantile hydrocephalus presents unique challenges for cerebrospinal fluid (CSF) shunt valve selection.
  • High rates of shunt revision in infants necessitate careful consideration of valve characteristics.
  • Existing literature lacks definitive guidance on optimal valve choice for this vulnerable population.

Purpose of the Study:

  • To review current valve types used in infants with hydrocephalus.
  • To determine if an optimal valve choice exists for infant hydrocephalus management.
  • To analyze comparative data on valve performance in pediatric patients.

Main Methods:

  • Conducted a literature review of studies on valve types (programmable vs. non-programmable, size, pressure) in infants (≤2 years).
  • Analyzed data from the pivotal BASICS trial focusing on infant patients.
  • Reviewed institutional cohort data from a tertiary referral center.

Main Results:

  • Literature review (19 studies) found no superior valve choice between programmable/non-programmable or different pressure/flow-regulating valves.
  • BASICS trial data (391 infants) showed no significant difference between gravitational and programmable valve subgroups.
  • Institutional data revealed no significant difference in failure rates between valve subtypes.

Conclusions:

  • Valve selection in infant hydrocephalus remains controversial due to heterogeneity and limited comparative studies.
  • Infant hydrocephalus patients face a high risk of shunt failure.
  • Current evidence, including randomized trials and institutional data, indicates no difference in non-infective failure rates among various valve subtypes in infants.