American Society of Hirudotherapy

Diagnosis and therapy of laryngeal diseases in the history of medicine. I: The pre-laryngoscopic era

Research article published in Laryngo- rhino- otologie (2001)

Last Updated: June 18, 2026Reviewed by: ASH Editorial Board
Research article — evidence reviewArticle reference
Evidence: Research reportDrug DevelopmentFeldmann H et al. · Laryngo- rhino- otologie, 2001

Abstract

BACKGROUND: ANATOMY, PHYSIOLOGY AND PATHOLOGY: Hippocrates and Aristotle did not yet have a clear idea of the anatomy and physiology of the larynx. 500 years later Galenos carried out subtle studies on animals and elaborated a fairly precise description of the different cartilages, muscles and nerves of the larynx; he was the first to demonstrate the superior and the recurrent nerves of the larynx. He performed numerous experiments on animals with temporary or permanent interruption of the nervous function and thus developed a correct opinion of the vocal physiology. However, he did not draw clinical conclusions from his knowledge. In the 16th century the macroscopic anatomy of the larynx was elaborated further bei Andreas Vesalius, Fabricius ab Aquapendente et al.; Jacob Henle in 1838 described the different epithelia in the larynx, based on microscopic studies. The pathology was inaugurated by Giovanni-Battista Morgagni in 1761, including the pathology of the larynx. Francis Home in Edinburgh (1765) and Pierre-Fidèle Bretonneau in Tours (1826) made the first studies on croup and diphtheria and coined these names. Fr. Hermann Albers in Bonn in 1829 published the first monography on diseases of the larynx, incorporating more than 80 relevant case reports from the literature and numerous observations of his own. The first system of the pathology of the larynx was put up by von Rokitansky in Vienna. DIAGNOSIS AND THERAPY OF DISEASES OF THE LARYNX: Before the invention of laryngoscopy the physicians could deduce the underlying disease only from the clinical symptoms like hoarseness, dyspnoea, dysphagia. The conservative therapy followed the theory of humours and included bloodletting, leeches, purgatives and emetics; the surgical procedures were blind caustery with silver nitrate and ablation of polyps guided by palpation and scarification with a knife in cases of oedema; in desperate dyspnoea endonasal intubation was attempted (Desault 1789-1803) or a tracheotomy performed. Concluding the chapters a typical patient history of 1813 with a case of purulent laryngitis where most of these measures were applied but could not avert but rather provoked the death of the patient. This historical development is described with numerous anecdotic details.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Publication typeEnglish AbstractHistorical ArticleJournal Article
Indexed MeSH termsAnimalsHistory, 16th CenturyHistory, 17th CenturyHistory, 18th CenturyHistory, 19th CenturyHistory, AncientHistory, MedievalHumansLaryngeal DiseasesLaryngoscopy

Summary

Diagnosis and therapy of laryngeal diseases in the history of medicine. I: The pre-laryngoscopic era.

Why This Matters for Hirudotherapy

This historical article reviews the diagnosis and treatment of laryngeal diseases prior to the invention of the laryngoscope. It details how conservative therapies for laryngeal ailments were historically guided by the theory of humours and routinely included the application of leeches, alongside bloodletting, purgatives, and emetics. This provides direct historical documentation of how medicinal leeches were employed by physicians to treat specific upper airway and vocal tract conditions in the pre-modern medical era. However, the article's connection to hirudotherapy is strictly historical and anecdotal within a broader review of laryngology. It offers no modern clinical data, biological insights into the leech secretome, or efficacy metrics for contemporary ASH research.

Citation

Diagnosis and therapy of laryngeal diseases in the history of medicine. I: The pre-laryngoscopic era

Feldmann H et al. · Laryngo- rhino- otologie, 2001

Added to ASH library: May 27, 2026 · Site last updated: June 18, 2026

This website provides educational information and does not constitute medical advice, diagnosis, or treatment recommendations. Medicinal leech therapy carries clinically meaningful risks and should be performed only by qualified clinicians under institutionally approved protocols. FDA 510(k) clearance for medicinal leeches is limited to specific indications; investigational and off-label discussions are labeled accordingly. For patient-specific guidance, consult a qualified healthcare provider.