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Updated: Oct 1, 2025
06:05
Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
15.8K
The methylene blue test, a risky intervention: A case report.
La Tunisie Medicale
|March 4, 2022
Summary
Methylene blue dye used in tubal patency tests can cause methemoglobinemia, a condition reducing oxygen transport. Prompt diagnosis and intensive care are crucial for patient recovery.
Area of Science:
- Gynecology
- Toxicology
- Critical Care Medicine
Background:
- Methylene blue is a common diagnostic agent for assessing fallopian tube patency during laparoscopic procedures.
- Infertility investigations frequently involve evaluating tubal patency to identify potential causes.
Observation:
- A 28-year-old patient developed cyanosis (blue skin, mucous membranes, nails) post-laparoscopy with methylene blue.
- The patient exhibited significant hypoxemia, with oxygen saturation dropping to 82%.
Findings:
- Spectrophotometric analysis confirmed methemoglobinemia with a level of 8.9% in the patient.
- The condition resolved with supportive care, including a 48-hour intensive care unit stay.
Implications:
- Healthcare providers must be aware of the potential for methylene blue-induced methemoglobinemia.
- Vigilant monitoring for hypoxemia and cyanosis is essential in patients undergoing methylene blue testing.
- Early recognition and management of methemoglobinemia can prevent severe complications.
