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Related Concept Videos

Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin, heparin),...
Allergic Drug Reactions01:27

Allergic Drug Reactions

Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing numerous...
Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...
Skeletal Muscle Relaxants: Adverse Effects01:21

Skeletal Muscle Relaxants: Adverse Effects

Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
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Hypersensitivity Reactions: Immune-Complex Reactions

Type III hypersensitivity reactions occur when antigen–antibody complexes form and activate the complement system. Normally, these complexes help the clearance of antigens by phagocytes and red blood cells. However, when large numbers of immune complexes are present, they can deposit in tissues—particularly in the walls of blood vessels—leading to inflammation and tissue injury. These deposits trigger complement activation and neutrophil recruitment, resulting in serum sickness, a systemic...

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[Complications associated with injectable hyaluronic acid].

Annales de dermatologie et de venereologie·2012
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[Adverse reactions to injectable fillers].

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[Skin testing with cosmetics brought in by patients].

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Related Experiment Video

Updated: Jul 6, 2026

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
12:22

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

[Adverse reactions to injectable fillers].

A Pons-Guiraud1

  • 110, Boulevard Malesherbes, 75008, Paris, France. annick.pons-guiraud@wanadoo.fr

Annales De Dermatologie Et De Venereologie
|May 6, 2008
PubMed
Summary

Injectable fillers are commonly used in aesthetic medicine to enhance soft tissues. Most fillers are based on hyaluronic acid or collagen and are generally safe. Short-term side effects are mild and reversible. However, non-degradable fillers, like those containing polylactic acid, can lead to persistent granulomas. These granulomas are difficult to treat and often delayed. The study found that thorough patient screening reduces the risk of complications. Degradable fillers are safer and should be preferred. Non-degradable products should be used with caution or avoided. The findings suggest a shift toward using materials that degrade naturally for better patient outcomes.

Keywords:
Injectable fillersAesthetic medicineSoft tissue augmentationGranuloma preventionClinical review

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Related Experiment Videos

Last Updated: Jul 6, 2026

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
12:22

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

Area of Science:

  • Dermatological treatments in aesthetic medicine
  • Biocompatibility studies in injectable materials
  • Aesthetic surgery outcomes research

Background:

Injectable fillers have become a popular solution for soft tissue augmentation. Most products are based on hyaluronic acid or collagen, which are generally well-tolerated. Short-term side effects are typically mild and reversible. However, the long-term safety of these materials remains a topic of interest. Some fillers degrade slowly, such as those containing polylactic acid or bioactive ceramics. These materials may lead to complications if not properly evaluated before treatment. Non-degradable products have been associated with persistent granulomas, which are difficult to treat. This gap motivated a closer examination of filler safety profiles. Understanding the differences between filler types is essential for clinical decision-making.

Purpose Of The Study:

This study aimed to evaluate the safety and long-term outcomes of various injectable fillers. The focus was on comparing degradable and non-degradable materials. It sought to identify which products are associated with fewer complications. The motivation stemmed from reports of persistent granulomas linked to non-degradable fillers. The study also aimed to assess the role of patient screening in preventing adverse reactions. It examined whether certain filler types are more prone to causing delayed complications. The goal was to inform clinical guidelines on filler selection. The findings could impact how aesthetic practitioners approach soft tissue augmentation.

Main Methods:

The study reviewed clinical outcomes of various injectable fillers used in aesthetic medicine. It analyzed data from patients treated with hyaluronic acid, collagen, polylactic acid, and bioactive ceramics. Patient histories were examined for short-term and long-term adverse events. The presence of granulomas was a key outcome measure. The study also evaluated the effectiveness of pre-treatment screening in preventing complications. Non-degradable fillers were compared with degradable ones in terms of complication rates. Data were collected from multiple clinical centers to ensure a broad sample. The analysis focused on the frequency and severity of adverse reactions.

Main Results:

Degradable fillers, such as those based on hyaluronic acid or collagen, showed few short-term side effects. These effects were typically mild and reversible. Long-term complications were rare when patient screening was thorough. Non-degradable fillers, however, were linked to persistent granulomas. These granulomas were often delayed and resistant to treatment. The study found that non-degradable products should be used with caution. The incidence of granulomas was significantly lower with degradable materials. These findings suggest a preference for degradable fillers in aesthetic procedures.

Conclusions:

The authors propose that degradable fillers are safer for long-term use in aesthetic procedures. They suggest that non-degradable products should be avoided or used very sparingly. The study supports the importance of thorough patient screening before treatment. It also highlights the need for careful selection of filler materials. The findings may influence future clinical practices in aesthetic medicine. The authors emphasize the benefits of using materials that degrade naturally. They caution against the risks associated with non-degradable fillers. These conclusions align with the observed clinical outcomes and patient safety data.

Non-degradable fillers may cause persistent granulomas, which are difficult to treat and often delayed.

Degradable fillers, like hyaluronic acid, typically have fewer and reversible side effects compared to non-degradable ones.

Thorough screening helps identify patients at higher risk for granuloma formation and reduces complications.

Non-degradable materials, such as polylactic acid, are more likely to cause persistent granulomas than degradable ones.

Granulomas are rare with degradable fillers but more common with non-degradable ones, especially when screening is inadequate.

The authors propose that non-degradable fillers should be avoided or used very exceptionally due to their higher complication risks.