Pediatric Pontine Cavernous Malformations: The Presigmoid, Posterior Petrosal Approach

Charles G Kulwin1, Troy D Payner1, Rick F Nelson2

  • 1Department of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, Indiana.

Insights

The posterior petrosal approach is a feasible surgical option for pediatric brainstem cavernomas. This technique offers a viable solution for managing these complex lesions in children, potentially reducing neurological risks.

Area of Science:

  • Neurosurgery
  • Pediatric Neurology
  • Vascular Malformations

Background:

  • Brainstem cavernous malformations (cavernomas) in children present significant risks of hemorrhage and neurological decline.
  • Genetic predisposition can exacerbate the risk and severity of pediatric brainstem cavernomas.
  • Surgical intervention for these lesions is complex and associated with substantial morbidity risks.

Observation:

  • This study reviews the surgical management of two pediatric patients with symptomatic pontine cavernomas.
  • A presigmoid posterior petrosal approach was utilized for resection in both cases.
  • This approach, while established for adult ventral brainstem lesions, is less documented in pediatric pontine cavernoma treatment.

Findings:

  • The presigmoid posterior petrosal approach proved feasible for resecting pontine cavernomas in pediatric patients.
  • The technique was successfully applied in two cases, demonstrating its utility across different stages of pediatric cranial base development.
  • Detailed case descriptions with illustrations and a literature review support the findings.

Implications:

  • The posterior petrosal approach is a valuable surgical option for pediatric brainstem cavernomas.
  • This technique may offer a safer and more effective treatment strategy for young patients with these challenging lesions.
  • Further research into this approach could refine surgical outcomes for pediatric neurovascular conditions.
Abstract

Related Concept Videos

Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
279
Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
7.9K
Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight,...
334
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
247
Frustration and Conflict: Approach-Approach, Approach-Avoidance01:20

Frustration and Conflict: Approach-Approach, Approach-Avoidance

Frustration occurs when people are obstructed or prevented from achieving a desired goal or fulfilling a perceived need. For example, when someone's input is ignored in a discussion, it can lead to feelings of frustration. Conflict, however, arises from opposing interests, goals, or actions. Conflicts can take various forms based on the nature of these opposing desires or goals.
One common type of conflict is the Approach–Approach Conflict. In this case, a person faces two desirable...
551
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
311