Melas syndrome

S K Singh1, D Sarin, J M Puliyel

  • 1Department of Pediatrics, St. Stephen's Hospital, Tis Hazari, Delhi.

Insights

This case study highlights MELAS syndrome, a mitochondrial disease, in an 11-year-old Indian boy experiencing recurrent strokes and developmental delays. Early diagnosis and management are crucial for mitochondrial disorders.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Mitochondrial myopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is a rare genetic disorder.
  • It typically presents in childhood with neurological and muscular symptoms.

Observation:

  • An 11-year-old male presented with stroke-like symptoms including headache, vomiting, right-sided weakness, and focal seizures.
  • He had a history of five previous stroke episodes since infancy, with progressive developmental delays.
  • Elevated serum and CSF lactic acid levels and ragged red fibers on muscle biopsy confirmed mitochondrial dysfunction.

Findings:

  • Despite normal EEG, CT, and MRI during the current episode, the patient showed spontaneous recovery within 7 days.
  • Recovery time shortened with each successive stroke episode, indicating a potential adaptive response or disease progression pattern.
  • This case represents the first documented instance of MELAS syndrome in the Indian population.

Implications:

  • This case underscores the importance of considering MELAS syndrome in pediatric patients with recurrent stroke-like episodes and mitochondrial dysfunction.
  • The unique recovery pattern observed warrants further investigation into the pathophysiology and potential therapeutic strategies for MELAS syndrome.
  • Increased awareness and reporting of MELAS syndrome in diverse populations like India are crucial for improving diagnosis and patient care.

Related Concept Videos

Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
Myasthenia Gravis ll: Pathophysiology01:22

Myasthenia Gravis ll: Pathophysiology

The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...