T. 1: Traditional DCS & AGE Classification**

DECOMPRESSION SICKNESS

TYPE I

1. MUSCULOSKELETAL (including ‘niggles’)

2. CUTANEOUS

a. Transient pruritus

b. Circulatory manifestations (Cutis Marmorata)

3. LYMPHATIC

4. MAILAISE/ANOREXIA/FATIGUE

TYPE II

1. PULMONARY

2. NEUROLOGICAL

a. Spinal cord

b. Cerebral

c. Cranial nerve

d. Labyrinthine disturbance (inner ear DCS)

e. Peripheral nerve

f. Migraine-like symptoms

g. Girdle pain

3. HAEMOCONCENTREATION AND HYPOVOLAEMIC SHOCK

BAROTRAUMA

A. OTOLOGICAL

1. External Ear Canal

2. Middle Ear

3. Inner Ear

B. PARANASAL SINUS

C. DENTAL

D. PULMONARY

1. Medistinal emphysema

2. Pneumothorax

3. Arterial gas embolism

**Elliot & Kindwall [2] and Farmer [3])