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Dissection of the thoracic aorta. A comparison between medical and surgical treatment
Insights
Early diagnosis and treatment of acute thoracic aortic dissection are crucial. Surgical intervention significantly improves long-term survival for Type I dissections, while Type III outcomes show no significant difference between medical and surgical approaches.
Area of Science:
- Cardiology
- Thoracic Surgery
- Vascular Medicine
Background:
- Acute thoracic aortic dissection presents diagnostic challenges with no pathognomonic symptoms or signs.
- Accurate diagnosis historically relied on aortography, which also enabled classification.
Purpose of the Study:
- To evaluate the diagnostic methods and therapeutic outcomes for acute thoracic aortic dissection.
- To determine the impact of early diagnosis and surgical intervention on patient survival.
Main Methods:
- Retrospective review of 113 patients diagnosed with acute thoracic aortic dissection between 1965 and 1979.
- Diagnosis confirmed via aortography, which was used for De Bakey classification.
- Comparison of survival rates between medical and surgical treatments based on dissection type.
Main Results:
- Aortography was essential for reliable diagnosis and classification of aortic dissection.
- Early aortography is recommended due to high early mortality.
- Surgical treatment for Type I dissection demonstrated significantly improved 5-year survival (40%) compared to medical management (13%, p < 0.01).
- No significant difference in survival was observed for Type III dissection regardless of treatment modality.
Conclusions:
- Aortography is vital for timely diagnosis and management of acute thoracic aortic dissection.
- Urgent surgical intervention is indicated for Type I dissections to enhance long-term survival.
- Management strategies for Type III dissections may not require surgical intervention due to similar survival outcomes.
Abstract:
We have reviewed 113 patients with acute thoracic aortic dissection seen between 1965 and 1979. There were no "diagnostic" symptoms or signs of acute dissection, and diagnosis could only be reliably made by aortography. The latter also allowed typing of the dissection (De Bakey classification) which permitted appropriate therapy to be instituted. Aortography should be performed early because of the high mortality of this condition within the first 24 hours. Early surgery is warranted in all patients with Type I dissection since it significantly increases long term survival: 40% 5 year-survival for surgical treatment compared with 13% survival for medical treatment (p less than 0.01). There is no significant difference in long or short term survival for patients with Type III dissection whether patients are treated medically or surgically.