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High Prevalence of Arterial and Venous Corona Mortis Variants in Cadaveric Dissection
Diego Álvarez-Manilla-Cruz1, Adelina Rojas-Granados2, Pablo Betanzos-Madrigal3
1Department of Innovation in Human Biological Material, Faculty of Medicine, Universidad Nacional Autonoma de Mexico, Mexico City, MEX.
Insights
The corona mortis (CM), a vascular connection in the pelvis, is more common in the Mexican population than previously thought. This study analyzed 108 hemipelves, revealing high prevalence rates for both arterial and venous CM variants.
Area of Science:
- Anatomy
- Vascular Anatomy
- Pelvic Anatomy
Background:
- The corona mortis (CM) is an anatomical vascular variant in the retropubic area, forming an anastomosis between the external iliac and obturator vessels.
- Understanding CM prevalence is crucial for surgical planning in the pelvic region.
Purpose of the Study:
- To conduct a morphometric analysis of the corona mortis (CM).
- To establish the prevalence of arterial and venous CM in the Mexican population.
Main Methods:
- Analysis of 108 human cadaver hemipelves using a suprapubic approach.
- Vessels were perfused with latex (red for arteries, blue for veins) and dissected for morphological examination.
- Measurements included caliber, length, and distance to the pubic symphysis, taken in triplicate.
Main Results:
- Prevalence of arterial variants was 70.4% (76/108 hemipelves).
- Prevalence of venous variants was 89.9% (97/108 hemipelves).
- Overall CM prevalence found to be 48% in this Mexican population.
Conclusions:
- This study reports the frequency of CM in the Mexican population for the first time.
- The observed prevalence of CM (48%) is higher than previously documented (36%).
Background:
The arterial or venous corona mortis (CM) is an anatomical vascular variant found in the retropubic area. It is an anastomosis between the external iliac system and the obturator vessels. This study focuses on morphometric analysis and the establishment of the prevalence of arterial and venous CM in the Mexican population.
Methodology:
A total of 108 hemipelves from human cadavers embalmed with a propylene-glycol solution were analyzed using a suprapubic approach. The abdominal viscera were mobilized to locate the common iliac arteries and veins, which were perfused with red latex for arteries and blue for veins. The vessels of the internal iliac system were identified and dissected, and their morphological characteristics, pattern of variation, and laterality were examined. Measurements included caliber, length, and distance between the CM and the pubic symphysis, using an electronic Vernier caliper for all measurements. Each measurement was performed in triplicate and is presented as mean ± standard error.
Results:
Of the studied hemipelves, 14 were female, and 94 were male. A morphometric analysis was performed, where we found that 32 (29.6%) of the hemipelves did not present any arterial variants and only 11 (10.1%) did not show a venous variant. Accordingly, this study found a prevalence of 76 (70.4%) for arterial variants and 97 (89.9%) for venous variants.
Conclusions:
The frequency of CM had not been reported in the Mexican population; however, we found a higher prevalence (48%) of CM than previously reported (36%).
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Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...