What we should know about the cellular and tissue response causing catheter obstruction in the treatment of

Carolyn A Harris1, James P McAllister

  • 1Department of Neurosurgery, Division of Pediatric Neurosurgery, University of Utah, Salt Lake City, Utah 84132, USA. carolyn.anne.harris@gmail.com

Neurosurgery
|December 14, 2011
PubMed

Insights

Ventricular catheter obstruction is a common problem in hydrocephalus treatment. This review explores modifications to shunts, including surgical strategies and catheter design, to prolong their lifespan and improve patient outcomes.

Area of Science:

  • Biomedical Engineering
  • Neurosurgery
  • Materials Science

Background:

  • Hydrocephalus treatment often involves cerebrospinal fluid (CSF) shunting.
  • Ventricular catheter obstruction is a significant complication, leading to shunt failure.
  • Obstruction can be caused by normal brain cells or pathological cells in CSF.

Purpose of the Study:

  • To review the causes of ventricular catheter obstruction in hydrocephalus.
  • To identify modifications to ventricular catheters that may reduce obstruction.
  • To explore strategies for prolonging shunt longevity and improving patient outcomes.

Main Methods:

  • Review of existing literature on ventricular catheter obstruction.
  • Analysis of modifications to surgical strategies.
  • Examination of changes to catheter surface chemistry and architecture.

Main Results:

  • Obstruction is multifactorial, involving cellular adhesion and material interactions.
  • Modifications to catheter surface properties can influence cell interaction.
  • Altering catheter architecture and surgical techniques may impact obstruction rates.

Conclusions:

  • A combination of approaches, including surgical, chemical, and architectural modifications, is likely necessary.
  • Optimizing ventricular catheter design and implantation can improve hydrocephalus treatment.
  • Prolonging shunt function is key to better patient outcomes in hydrocephalus management.

Related Concept Videos

Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
Cardiac Catheterization IV: Nursing Management01:26

Cardiac Catheterization IV: Nursing Management

Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
Cerebral Edema l: Introduction01:19

Cerebral Edema l: Introduction

Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...