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Congenital pulmonary arteriovenous aneurysms.
B A Korolev1, A V Pavlunin, N A Karpova
1Department of Hospital Surgery, Medical Institute, Nizhny Novgorod, Russia.
Cor Et Vasa
|January 1, 1992
Summary
Congenital pulmonary arteriovenous aneurysms cause hypoxemia due to shunted blood. Diagnosis is aided by tomography and angiography, identifying three distinct aneurysm types.
Area of Science:
- Cardiology
- Pulmonology
- Radiology
Background:
- Congenital pulmonary arteriovenous aneurysms (PAVs) are rare vascular malformations.
- Symptoms correlate with the volume of arterial blood shunted into the venous system.
Purpose of the Study:
- To analyze diagnostic and therapeutic experiences with 26 patients with PAVs.
- To identify variants of PAVs based on imaging.
Main Methods:
- Retrospective analysis of 26 patients with PAVs.
- Diagnostic imaging including aimed tomography and pulmonary angiography.
Main Results:
- Shunted non-oxygenated blood volume ranged from 20-48%.
- Hypoxic hypoxemia observed (HbO2art. = 91.2 ± 1.43%; pO2art. = 63.6 ± 5.54 mmHg).
- Three PAV variants identified: isolated, multiple, and capillary hemangioma type.
Conclusions:
- PAV symptoms are directly related to shunt volume and resulting hypoxemia.
- Aimed tomography and pulmonary angiography are crucial for diagnosing PAVs and classifying their variants.