32 days ; hem. Carotid ' constricted' 2 days before. Fearn, aneur. innom. Recovered; much improved. Carotid tied 2 years before subclavian. Doughty, Mott, aneurism innominate. Recovered; cured. Carotid tied one year before subclavian. Barwell's case died of pneumonia and bronchitis, aud other complications, three months and ten days after the operation. (See Carotid History.) In these last five cases death is dated from the deligation of the subclavian. Of the 23 instances in which the right common carotid and right subclavian arteries have been tied, 16 proved fatal ; 7 recovered, in one of which ' no improvement' was reported, and in 3 of these 7 a cure is probable.^ I would conclude from the above : 1st. That ligature of the carotid and subclavian (in its first division) should not be performed. 2d. That it will prove safer to tie the carotid first (when it shall be deemed necessary to tie both vessels in the treatment of aneurism), in order to relieve the sac from the danger of rupture to which it would be exposed by the sudden stoppage of the two great vessels connected with it, before the collateral circulation may have been partially established. 3d. That the subclavian should be tied in its third surgical di- vision. LIGATURE OF THE RIGHT CAROTID AND THE INNOMINATE. This has been performed twice. Once by Smythe of New Orleans. The patient lived 10 years, and died of the original aneurism, which again formed by the reverse collateral circulation. A second time by A. B. Mott. The patient died soon after, of hemorrhage into the thorax, the sac bursting. The vertebrals were tied in both cases.<Callout type="warning" title="High Risk">Ligating these arteries carries a high risk of fatal complications.</Callout> <Callout type="tip" title="Precautionary Measures">Tie the carotid first to reduce the risk of sudden vessel rupture and subsequent hemorrhage.</Callout>
Key Takeaways
- Ligature of the common carotid and subclavian arteries should not be performed.
- Tying the carotid first is safer when both vessels need to be ligated.
- The subclavian artery should be tied in its third surgical division.
Practical Tips
- Prioritize tying the carotid artery first to minimize risks associated with sudden vessel occlusion.
- Be cautious of potential complications such as hemorrhage and infection when performing arterial ligations.
- Understand the anatomy and blood flow dynamics before attempting any arterial ligation procedures.
Warnings & Risks
High Risk
Ligating these arteries carries a high risk of fatal complications.
Complications
Be prepared for potential life-threatening outcomes, including hemorrhage and infection.
Modern Application
While the specific techniques described in this chapter are outdated, understanding the risks associated with arterial ligations can inform modern emergency response protocols. Modern medical practices have significantly improved safety measures and surgical techniques, but recognizing these historical warnings remains crucial for comprehensive preparedness.
Frequently Asked Questions
Q: What were the outcomes of tying both the common carotid and subclavian arteries?
Of the 23 instances in which the right common carotid and right subclavian arteries have been tied, 16 proved fatal, while only 7 recovered. In one case, there was no reported improvement, but in three of these seven cases, a cure is probable.
Q: What does the chapter suggest about the order of ligating the carotid and subclavian arteries?
The chapter suggests that it will prove safer to tie the carotid first (when both vessels need to be tied) in order to relieve the sac from the danger of rupture before the collateral circulation may have been partially established.
Q: What were the outcomes of tying the right carotid and innominate arteries?
Tying the right carotid and innominate arteries has only been performed twice. In one case, the patient lived for 10 years but died from the original aneurism due to reverse collateral circulation. In another case, the patient died soon after due to hemorrhage into the thorax.