Mushroom poisoning: A proposed new clinical classification

Area of Science:

• Toxicology
• Mycology
• Clinical Medicine

Background:

• Mushroom poisoning is an increasing global health issue.
• Current classifications are outdated, hindering diagnosis of novel poisoning syndromes.
• Accurate classification is crucial for effective patient management.

Purpose of the Study:

• To review and identify newly described mushroom poisoning syndromes.
• To develop an integrated, updated classification system for mushroom poisoning.
• To create a diagnostic algorithm to support clinical practice.

Main Methods:

• Comprehensive literature review focusing on publications since 1994.
• Inclusion criteria: detailed causation and clinical descriptions of new syndromes.
• Analysis of mushroom identity, clinical profile, epidemiology, and distinguishing features.

Main Results:

• Six major groups of mushroom poisoning syndromes were proposed based on clinical features.
• Key groups include cytotoxic, neurotoxic, myotoxic, metabolic/endocrine, gastrointestinal, and miscellaneous adverse reactions.
• Specific subgroups detail toxins and affected organs/systems, e.g., hepatotoxicity (amatoxins), nephrotoxicity (AHDA, orellanine), neurotoxicity (psilocybins, muscarines, ibotenic acid).

Conclusions:

• The proposed integrated classification addresses limitations of existing systems.
• This new framework facilitates the diagnosis of diverse mushroom poisoning syndromes.
• The diagnostic algorithm aids clinicians in managing mushroom-induced toxicological emergencies.