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  • Presentation

Aspiration vs Non-aspiration in Injectables

Description

The speaker addresses the debate between aspiration and non-aspiration techniques in injectable procedures, arguing predominantly in favor of non-aspiration based on personal experience. They assert that while vascular events can occur, the overall incidence is low if proper techniques and anatomical knowledge are applied. The importance of understanding individual anatomical variations is emphasized, as each patient may present differently. The speaker presents a series of challenges and limitations associated with aspiration, such as false negatives resulting from needle movement and the time-consuming nature of the aspiration process. Key points include that negative aspiration does not guarantee safety from vascular injury, and relying solely on aspiration may not effectively prevent complications. The discussion also touches on the necessity of a practical approach, advocating for good technique, the use of larger bore needles, and perhaps cannulas, while acknowledging potential risks. Ultimately, the speaker concludes that while aspiration has traditionally been considered a precautionary measure, current evidence does not support it as a reliable indicator of safety in injections. They emphasize the importance of not solely depending on aspiration and suggest further research into its role in injectable safety.

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Conclusions

  • Aspiration before filler injection is still a debated practice in minimizing vascular occlusions.
  • The incidence of vascular events is low, but they do occur, indicating aspiration may not be foolproof.
  • Negative aspiration does not guarantee that the needle is not in a blood vessel, as false negatives can occur.
  • Successful aspiration requires waiting at least 16 seconds and absolute stillness from both the practitioner and patient, which is often impractical.
  • Techniques such as using large-bore needles and priming them with saline may help reduce false negatives during aspiration.
  • Relying solely on aspiration to prevent vascular complications is discouraged; awareness of anatomical variations is essential.
  • Leonie Schelke, MD; Tom Decates, MD; Jonathan Kadouch, MD, PhD; and Peter Velthuis, MD, PhD. Incidence of Vascular Obstruction After Filler Injections. Aesthetic Surgery Journal 2020; 40(8): NP457-NP460.
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