- •List of Authors
- •Foreword
- •Preface
- •1.1 Burns for Doctors in Antiquity
- •1.1.1 Chemical Burns Since Antiquity
- •1.1.4 Conclusion
- •1.2 Modern History of the Chemical Burns
- •1.2.2 Start of Medical Treatment
- •1.2.4 Rinsing Therapy
- •1.2.5 Classification of Eye Burns
- •1.2.6 Specific Treatment Options
- •References
- •2.1 Introduction
- •2.2.1 Individual Publications/Case Series
- •2.2.3 US Bureau of Labor Statistics Data
- •2.3 Etiology
- •2.3.1 Work-Related Injury
- •2.3.2 Deliberate Chemical Assault
- •2.3.3 Complications of Face Peeling
- •2.3.4 Burn Center/Hospital Studies
- •2.4 Involved Chemicals
- •2.5 Conclusions
- •References
- •3.1 From Chemistry to Symptoms
- •3.1.1 What Is a Chemical Burn?
- •3.1.3 Extent of the Matter
- •3.2 The Chemical Agent
- •3.2.2.1 Acidic Function
- •3.2.2.2 Basic Function
- •3.2.2.3 Oxidizing Function
- •3.2.2.4 Reduction Function
- •3.2.2.5 Solvent Function
- •3.2.2.6 Chelating Function or Complexation
- •Energy Scale of Chelation Reactions
- •3.2.2.7 Alkylation Reaction
- •Reactivity Scale for Alkylating Agents
- •3.2.3 Modulation of the Expression of the Reactivity of a Molecule
- •3.2.3.1 Acetic Acid and Its Derivatives
- •3.2.3.2 Hydrofluoric Acid
- •3.2.3.3 Phenol
- •3.2.3.4 Methylamines Series
- •3.2.3.5 Last Illustration: Acrolein
- •3.2.4.1 Acid–Base Scale
- •3.2.4.3 Scales of Energy Level
- •3.3 Constituents of the Tissues: Which Are the Biological and Biochemical Targets?
- •3.4 The Mechanisms of the Chemical Burn During the Contact Between the Aggressor and the Eye
- •3.4.3 Key Parameters of Chemical Burns
- •Solid Form
- •Viscosity
- •Exothermic Reaction
- •Titanium Tetrachloride
- •Trichloromethylsilane
- •Boron Trifluoride
- •Sulfuric Acid
- •Concentration of the Chemical
- •Phenomenon of the Diffusion of Corrosives in Relation with Their Concentration
- •Time of Contact
- •Temperature
- •Pressure
- •3.5 Practical Conclusions in Order to Manage the Optimal Chemical Decontamination of an Eye
- •3.5.2 Consequences of a Passive Washing: A Longer Time of Action
- •3.5.3 The Concept of Active Wash
- •3.6 What is Now the Extent of Our Knowledge About Ocular Chemical Burns?
- •References
- •4: Histology and Physiology of the Cornea
- •4.1 Corneal Functions
- •4.2 Anatomy Reminder
- •4.3 Histology
- •4.3.1 The Epithelium and Its Basement Membrane
- •4.3.1.1 The Lacrymal Secretion
- •4.3.1.2 The Corneal Epithelium
- •4.3.1.3 The Superficial Cells
- •4.3.1.4 The Intermediate Cells
- •4.3.1.5 Basal Cells
- •4.3.1.6 The Basement Membrane
- •4.3.2 Bowman’s Membrane
- •4.3.3 The Stroma
- •4.3.3.1 Keratocytes
- •4.3.3.2 The Collagen Lamellae
- •4.3.3.3 Ground Substance
- •4.3.3.4 Other Cells
- •4.3.4 Descemet’s Membrane
- •4.3.5 The Endothelium
- •4.3.6 The Limbus
- •4.4 Vascularization
- •4.5 Innervation
- •4.6 Factors of the Corneal Transparency
- •4.6.1 The Collagen Structure
- •4.6.2 The Proteoglycans Function
- •4.6.3 The Absence of Vascularization
- •4.6.4 The Scarcity of Cells in the Stroma
- •4.6.5 The Regulation of the Hydration
- •4.6.6.1 The Limbus
- •4.6.6.2 The Stroma
- •4.6.7 Action of the Intraocular Pressure
- •References
- •5.1 Physiology of the Cornea
- •5.1.1 Eye Burns Physiological Barriers
- •5.1.3 Physiology of Local Decontamination
- •5.1.5 Limits between Irritation and Burn
- •5.1.6 Eye Burns
- •5.2 Pathophysiology of Eye Burns1
- •5.2.1 Types of Burns and Eye Irritation
- •5.2.2 Mechanisms of Corneal Burns
- •5.2.2.1 Contact Mechanisms
- •5.2.2.2 Thermal Contact
- •Particles
- •Hot Fluids
- •Steam
- •Liquid Metals
- •Cold Gazes
- •5.2.2.3 Eye Burns with Chemically Active Foreign Bodies
- •5.2.2.4 Eye Burns with Chemically Reactive Fluids
- •Alkali
- •Acids
- •Peroxides
- •Hydrofluoric Acid
- •Detergents/Solvents
- •5.2.3 Influence of Osmolarity
- •5.2.4 Penetration Characteristics
- •5.2.5 Cellular Survival
- •5.2.6 Release of Inflammatory Mediators
- •References
- •6: Rinsing Therapy of Eye Burns
- •6.1 Important
- •6.3 Osmolar Effects in Rinsing Therapy
- •6.3.1 Types of Irrigation Fluids
- •6.4 Effect of Irrigation Fluids
- •6.5 High End Decontamination
- •6.5.2 Hydrofluoric Acid Decontamination
- •6.6 Side Effects of Rinsing Solutions in the Treatment of Eye Burns
- •6.7 Our Expectations
- •References
- •7: The Clinical of Ocular Burns
- •7.1 Few Reminders
- •7.1.1 Anatomy Reminder
- •7.1.2 Physiology Reminder
- •7.2.1.2 Ulcer of the Cornea
- •7.2.1.3 Edema of the Cornea
- •7.2.3 The Initial Sketch
- •7.2.4.1 Signs of Alteration of the Conjunctiva
- •7.2.4.2 Signs of Intraocular Lesions
- •7.2.4.3 Extraocular Signs
- •7.3 Clinical Examination of the Evolution of Chemical Eye Burns
- •7.3.1 Benign Ocular Burns
- •7.3.2 Serious Ocular Burns
- •7.3.2.1 Complications on the Ocular Surface
- •Corneal Nonhealing
- •Other Complications on the Ocular Surface
- •7.3.2.2 Endocular Complication
- •Bibliography
- •8: Surgical Therapeutic of Ocular Burns
- •8.1 Surgical Treatment of Ocular Burns
- •8.1.3 Tenon’s Plastics
- •8.1.4 The Conjunctival Transplantation
- •8.1.6 The Transplantation of Limbus
- •8.1.6.1 Exeresis of the Conjunctival Pannus
- •8.1.6.2 The Limbus Autograft
- •8.1.6.3 The Limbus Allograft
- •8.1.8 Keratoplasties
- •8.1.8.1 Big Diameter Transfixion Keratoplasty
- •8.1.8.3 The Deep Lamellar Keratoplasty
- •8.1.8.4 The Big Diameter Lamellar Keratoplasty
- •8.1.8.5 The Keratoplasty with Architectonic Goal
- •8.1.10 Keratoprosthesis
- •8.2 Surgical Treatment of Eyelid Burns
- •8.3 Conclusion
- •References
- •9: Emergency Treatment
- •9.3.1 In Occupational Environments
- •9.3.3 Industrial Accidents
- •9.3.4 Attacks
- •9.3.5 Lack of Initial Care
- •9.4 Organizing the Emergency Chain
- •9.5.1 Emergency Chain Definition
- •9.5.2 Safety Obligations
- •9.6 Which Care Chain for Optimum Management of Chemical Eye Burns?
- •9.6.1 Immediate Care by “Nonspecialists”
- •9.6.3.1 Develop a Protocol Which Must Be Simple in Every Aspect
- •9.6.3.2 Training
- •9.6.3.3 Necessary Specialized Supervision
- •Index
Preface
Whatever the origin of chemical burn lesions (i.e., whether resulting from a domestic accident, a chemical assault, or an industrial accident), such injuries can often result in serious functional visual injuries and significant physical and psychological consequences for the victims.
Nine authors of various disciplines and experiences have joined together to produce this book whose aim is to collectively present the most current and relevant data for each specific topic addressed.
As an introduction to the field of chemical ocular burn lesions, an historical and epidemiological perspective has been reviewed by an historian, an ophthalmologist, and a medical toxicologist. Next, a section is presented covering an expanded review of the mechanisms of action and reactivity of chemicals which can cause ocular injuries, prepared by a group of chemists and physicians.
A practicing ophthalmologist with additional experience in ocular physiology and histology then addresses fundamental and newly-developed methods for assessing ocular chemical burn injuries, particularly of the cornea, thus completing the discussion of the various mechanistic and pathophysiological aspects of ocular chemical burn lesions. Various methods for ocular chemical splash decontamination and the desirability of an efficacious active decontamination with the goal of preventing or minimizing ocular chemical burn injuries are discussed.
Following this are two sections prepared by practicing ophthalmologists which discuss clinical evaluation and current surgical treatment of ocular chemical burn injuries.
The book concludes with a section prepared by a chemist/physicist who conceived the innovative possibility of an active decontamination solution for ocular chemical splashes and an emergency physician who discuss specific decontamination measures and the emergent care of patients with ocular chemical burn injuries.
This work will prove useful for medical students, physicians-in-training, occupational medicine physicians and nurses, and private practice or hospital-based ophthalmologists, as well as for occupational health and safety personnel who deal with prevention and first aid measures for ocular chemical splashes, and who wish to supplement or update their understanding of ocular chemical burn injuries.
Gathering together all this technical knowledge introduces a new philosophy in the approach to chemical ocular burn lesions, in particular at the initial stage of victim management with increased practicality, specificity, and efficacy.
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Preface |
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The multidisciplinary approach developed in this book also allows us, from the fundamental knowledge base, to envision other more diversified research on chemical burns in general.
The authors’ goal is to promote the most beneficial care for patients with chemical ocular burn injuries by presenting the most precise and pertinent current information, and thus increasing communication and coordination between the various professionals involved in the prevention and treatment of such patients.
We are grateful to Oliver Mussate for translating this book from French to English.
Valmondois France |
François Burgher |
Contents
1History of Chemical Burns and Relative Treatments . . . . . . . . . 1 Patrice Josset and Norbert Schrage
2Epidemiology of Ocular Chemical Burn Injuries . . . . . . . . . . . 9 Alan H. Hall
3The Chemical Agents and the Involved Chemical Reactions . . . . . 17 François Burgher, Laurence Mathieu, and Joël Blomet
4Histology and Physiology of the Cornea . . . . . . . . . . . . . . 49 Max Gérard and Patrice Josset
5Physiopathology of the Cornea and Physiopathology
of Eye Burns . . . . . . . . . . . . . . . . . . . . . . . . . 59 Norbert Schrage
6Rinsing Therapy of Eye Burns . . . . . . . . . . . . . . . . . . 77 Norbert Schrage
7 The Clinical of Ocular Burns . . . . . . . . . . . . . . . . . . 93 Max Gérard
8Surgical Therapeutic of Ocular Burns . . . . . . . . . . . . . . 103 Harold Merle
9 Emergency Treatment . . . . . . . . . . |
. . . . . . . . . . . 113 |
Joël Blomet, Lucien Bodson, and Max Gérard |
|
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . . . 119 |
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