changes in the adci medical requirementsusgomdswg.com/pdf/adci changes to medical...
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Changes in the ADCI
Medical Requirements
Tony Alleman, MD MPH FACOEM UHM
Chairman – Physicians Diving Advisory
Committee
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Background
PDAC medical committee was formed
in 2012
Focus of committee is to revise medical
requirements
Provide medical advice to ADCI
Last revision of the medical
requirements was in 2008
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Changes Effective 2016
Examinations are to be performed by a
physician qualified to perform these
exams
– Attended a fitness to dive course
Examinations recommended annually
Examination after some diving related
incidents are required
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Changes Effective 2016
Non-physicians are not approved to
perform ADCI diving examinations
– Physician assistants
– Nurse practitioners
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Changes Effective 2016
Diver is required to notify the medical
examiner of any change in his/her
medical condition
Fitness for duty examination is required
after
– Any hospitalization due to diving related
injury or illness
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Changes Effective 2016
Fitness for duty examination is required
after
– Any hospitalization due to diving related
injury or illness
– Inner ear DCS
– CNS dysfunction
– Arterial gas embolus (AGE)
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Changes Effective 2016
Fitness for duty examination is not
required after
– Type I DCS
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Changes Effective 2016
Anyone exposed to hyperbaric conditions
(divers, DMT’s, inside attendants) will be
required to have a medical evaluation for any
change in injury or illness that requires
prescription medication, surgery, or
hospitalization
Exams are to be done by ADC qualified
doctors
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Components of the Exam
Chest x-ray
– In the past years PA only
– Now PA and lateral
– Every 3 years unless otherwise indicated
– Looking for blebs/cysts
Spirometry
– Should use NHANES reference values
– Include FEV1, FVC and FEF 25-75%
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Components of the Exam
Visual acuity– Annual evaluation
– Color vision
Sickle screen
– Optional
– Once only
TB screening
– Optional
– If done, annually
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Components of the Exam
Cardiac risk based score (Framingham)
– Done on divers 35 y/o and greater
– Must do lipids
• Total cholesterol
• HDL cholesterol
– Combination of cholesterol, smoking, age,
blood pressure
– Accumulate points
– Determine risk
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Framingham Risk - Age
Age Points
20-34 -9
35-39 -4
40-44 0
45-49 3
50-54 6
55-59 8
60-64 10
65-69 11
Age Points
20-34 -7
35-39 -3
40-44 0
45-49 3
50-54 6
55-59 8
60-64 10
65-69 12
Men Women
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Framingham Risk - Smoking
Men WomenAge Smoker Non-
smoker
20-39 8 0
40-49 5 0
50-59 3 0
60-69 1 0
70-79 1 0
Age Smoker Non-
smoker
20-39 9 0
40-49 7 0
50-59 4 0
60-69 2 0
70-79 1 0
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Framingham Risk - Chol
Men
Total
Cholest
erol
Age
20-39
Age
40-49
Age
50-59
Age
60-69
Age
70-79
<160 0 0 0 0 0
160-199 4 3 2 1 0
200-239 7 5 3 1 0
240-279 9 6 4 2 1
280+ 11 8 5 3 1
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Framingham Risk - Chol
Women
Total
Cholest
erol
Age
20-39
Age
40-49
Age
50-59
Age
60-69
Age
70-79
<160 0 0 0 0 0
160-199 4 3 2 1 1
200-239 8 6 4 2 1
240-279 11 8 5 3 2
280+ 13 10 7 4 2
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Framingham Risk - HDL
Men Women
HDL Points
60+ -1
50-59 0
40-49 1
<40 2
HDL Points
60+ -1
50-59 0
40-49 1
<40 2
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Framingham Risk – B/P
Men Women
Systolic
BP
If
Untreated
If
Treated
<120 0 0
120-129 0 1
130-139 1 2
140-159 1 2
160+ 2 3
Systolic
BPIf
UntreatedIf
Treated
<120 0 0
120-129 1 3
130-139 2 4
140-159 3 5
160+ 4 6
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Example of Framingham Risk
No of Points
Age 0
Total Chol
HDL Chol
Sys B/P
Smoking
Total 0
40 y/o diver
Age Points
20-34 -9
35-39 -4
40-44 0
45-49 3
50-54 6
55-59 8
60-64 10
65-69 11
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Example of Framingham Risk
No of Points
Age 0
Total Chol
HDL Chol
Sys B/P
Smoking 5
Total 5
40 y/o diver
Smoker
Age Smoker Non-smoker
20-39 8 0
40-49 5 0
50-59 3 0
60-69 1 0
70-79 1 0
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Example of Framingham Risk
No of Points
Age 0
Total Chol 5
HDL Chol
Sys B/P
Smoking 5
Total 10
40 y/o diver, smoker
Total chol = 210
Total
Chol
Age
20-39
Age
40-49
Age
50-59
Age
60-69
Age
70-79
<160 0 0 0 0 0
160-
1994 3 2 1 0
200-
2397 5 3 1 0
240-
2799 6 4 2 1
280+ 11 8 5 3 1
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Example of Framingham Risk
No of Points
Age 0
Total Chol 5
HDL Chol 1
Sys B/P
Smoking 5
Total 11
40 y/o diver, smoker
HDL chol = 40
HDL Points
60+ -1
50-59 0
40-49 1
<40 2
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Example of Framingham Risk
No of Points
Age 0
Total Chol 5
HDL Chol 1
Sys B/P 1
Smoking 5
Total 12
40 y/o diver, smoker, ↑ Total chol,
↑ HDL chol, B/P sys = 131
Systolic BP
If UntreatedIf
Treated
<120 0 0
120-129 0 1
130-139 1 2
140-159 1 2
160+ 2 3
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Example of
Framingham Risk
No of Points
Age 0
Total Chol 5
HDL Chol 1
Sys B/P 1
Smoking 5
Total 12
10% risk should have further
evaluation
Point
Total
10-Year
Risk
<0 <1%
0 1%
1 1%
2 1%
3 1%
4 1%
5 2%
6 2%
7 3%
8 4%
9 5%
10 6%
11 8%
12 10%
13 12%
14 16%
15 20%
16 25%
17 or
more
≥30%
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Disqualifying Conditions
Lung – Cystic, bullous, or cavitary
disease
Lung – spontaneous pneumothorax
Chronic Alcoholism, drug abuse or
dependence
Hemoglobinopathies associated with
comorbidities
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Disqualifying Conditions
Untreated or persistent / metastatic or
other significant malignancies including
those that require chemotherapy and/or
radiation therapy unless five years after
treatment with no evidence of
recurrence
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Disqualifying Conditions
Hearing impairment in the better ear should
be at least 40 dB average in the 500, 1000,
and 2000 Hz frequencies
Justa-articular osteonecrosis is disqualifying
Chronic conditions requiring continuous
control by medication that increases risks in
diving.
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Disqualifying Conditions
Hearing impairment in the better ear should
be at least 40 dB average in the 500, 1000,
and 2000 Hz frequencies
Justa-articular osteonecrosis is disqualifying
Chronic conditions requiring continuous
control by medication that increases risks in
diving.
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Changes Effective 2016
Weight table is now ADC weight table
Any diver over the ADC weight table can
have body fat testing by impedance or
hydrostatic methods. Body fat of 23% or less
would be acceptable
Any diver over the ADC weight table and
body fat >23% should be disqualified until
weight is acceptable
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Changes Effective 2016
Weight table is now ADC weight table
Any diver over the ADC weight table can
have body fat testing by impedance or
hydrostatic methods. Body fat of 23% or less
would be acceptable
Any diver over the ADC weight table and
body fat >23% should be disqualified until
weight is acceptable
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Changes Effective 2016
Arrhythmias and persistent tachycardia need
to be evaluated.
Vision – must be recorded with and without
contacts if used.
Ear changes –
– Chronic perforation of TM
– Active otitis media
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Changes Effective 2016
Exercise stress testing when ordered
must be to at least 10 METS.
Antiplatelet agents and aspirin (except
low dose) are disqualifying
Ejection fractions must be at least 40%
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Changes Effective 2016
Peptic ulcers that are healed must be
documented (testing)
Colostomies are disqualifying
Active venereal disease is disqualifying
History of kidney stones may be disqualifying
– Periodic evaluation must be done to determine
presence of stones
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Changes Effective 2016
Neural impingement or nerve root
displacement on MRI or CT scanning is
disqualifying even if asymptomatic
Pelvic exams are recommended to be
performed by gynecologist or other physician
who routinely performs those type of exams
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Changes Effective 2016
Time of loss of consciousness should be
documented.
Any doubt about severity of head injury
should get consultation.
Asymmetric reflexes should be documented
Two point discrimination testing in the thumb
middle finger and little finger.
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Changes Effective 2016
HIV testing has been removed
Pulmonary function must measure FEV1,
FVC and FEF25-75
NHANES reference values should be used.
Chest x-ray every three years instead of
yearly
Hemoglobin A1C required for any history of
diabetes
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Changes Effective 2016
Lipid panels required for all divers 35 years
and older to be used in the Framingham Risk
Drug screens are recommended
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Changes Effective 2016
Medications are now listed that are
disqualifying
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Medications
Amphetamines
– Lisdexamfetamine
– Designer drugs (MDMA, MMDA, FLEA,
EDMA, EFLEA, MDOH, MDEA, 5-methyl-
MDA, and others)
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Medications That Potentiate Oxygen Toxicity
• Psychostimulants
– Amphetamines
– Cocaine
– Methylphenidate
– Phenylpropanolamine
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
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Medications
Marijuana and synthetic marijuana
PCP
Cocaine
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Medications
Opioids, naturally occurring and
synthetics
– Morphine, codeine, hydrocodone,
oxycodone, buprenorphine, many others
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Medications That Potentiate Oxygen Toxicity
• Narcotics
– Fentanyl
– Meperidine
– Petazocine
– Propoxyphene
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
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Medications
Phosphodiesterase inhibitors
– Erective dysfunction medications
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Medications That May Promote Decompression Sickness
• Phosphodiesterase inhibitors
– Sildenafil (Viagra)
– Tadalafil (Cialis)
– Vardenafil (Levitra)
– Udenafil (Zydena)
– Avanafil (Stendra, Spedra)
– Dipyridamole (Persantine)Blatteau J-E, Brubakk AO, Gempp E, Castagna O, Risso J-J, et al. (2013)
Sidenafil Pre-Treatment Promotes Decompression Sickness in Rats. PLoS ONE
8(4): e60639. doi:10.1371/journal.pone.0060639
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Medications
Immunosuppresants not recommended
in saturation diving
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Medications
Tramadol
– Lowers seizure threshold
– Risk for oxygen toxicity
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Medications
Antidepressants
– Except low dose sertraline used for mild
depression
All antipsychotic medications
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Medications That Potentiate Oxygen Toxicity
• Antidepressants
– Tricyclics
– Serotonin-specific agents
– Bupropion
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
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Medications That Potentiate Oxygen Toxicity
• Neuroleptics
– Clozapine
– Phenothiazines
– Butyrophenones
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
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Medications
Muscle relaxants
Benzodiazepines
– Valium, Xanax, Ativan, Klonopin, many
others
Barbiturates
Anxiolytic and/or hypnotic medications
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Medications That Affect CNS
• Depressants
– Potential for increasing nitrogen narcosis
– Opiates
– Benzodiazepines
– Barbiturates
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Medications
All forms of insulin
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Medications That Potentiate Oxygen Toxicity
• Hormones
– Insulin
– Prednisone
– Estrogen
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
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Medications
Nicotine patches must be removed
when diving
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Medications
Verenicline – Chantix
– Variety of side effects including dizziness,
drowsiness (up to 10%)
– Seizures have been reported
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Medications
Beta blockers
– Propranolol, labetalol, many others
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Medications That Affect Cardiac Output
• Beta blockers
– Reduced heart rate
– May interfere with exercise tolerance
• Strong vasopressors (by increasing afterload)
– Phenylephrine
– Norepinephrine
– EpinephrineUnderstanding cardiac output. Crit Care. 2008;12(4):174.
Vincent JL. Understanding cardiac output. Crit Care. 2008;12(4):174.
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Medications
Buproprion
– Wellbutrin
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Medications That Potentiate Oxygen Toxicity
• Antidepressants
– Tricyclics
– Serotonin-specific agents
– Bupropion
Epilepsy and the elderly. In Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of
epilepsy. San Diego, CA: Academic Press; 1997. p. 233-254.
Oxygen toxicity. In Jain, KK, ed. Textbook of Hyperbaric Medicine. Cambridge, MA: Hogrefe & Huber; 2004,
p. 48-58.
![Page 60: Changes in the ADCI Medical Requirementsusgomdswg.com/PDF/ADCI Changes to Medical Requirements...Changes Effective 2016 Arrhythmias and persistent tachycardia need to be evaluated](https://reader034.vdocuments.us/reader034/viewer/2022051907/5ffa0cb8ef1c24521918e5ac/html5/thumbnails/60.jpg)
Weight ChartMaximum Allowable Weight Chart
Males
Weight in
Pounds
Height
(inches)
Females
Weight in
Pounds
170 60 170
176 61 174
182 62 179
188 63 182
194 64 187
200 65 192
206 66 196
212 67 200
218 68 204
225 69 209
230 70 212
235 71 217
241 72 222
247 73 225
253 74 230
259 75 234
265 76 239
271 77 243
277 78 248
283 79 252
289 80 255
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Return to Diving After
Diving Related IncidentSimple pain only – 24 to 72 hours
Pain only needed >1 treatment table for
complete resolution – 7 days
Altered sensation in limbs resolved by
one treatment table – 7 days
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Return to Diving After
Diving Related IncidentMotor or other neurological deficit
resolved by one treatment table – 28
days
Neurological injury needing several
treatment tables to resolve – 4 to 6
months
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Return to Diving After
Diving Related IncidentPulmonary barotrauma – 2 months
– Includes mediastinal emphysema
Pneumothorax resolved (other than
spontaneous) – 2 months
Vestibular decompression sickness – 4
to 6 months
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Return to Diving After
Diving Related IncidentRound window rupture – 6 months after
repair
Central nervous system oxygen toxicity
after complete evaluation – 7 days
Perforated TM – 6 weeks after healed
Other ENT barotrauma – determined by
examiner
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Return to Diving After
Diving Related IncidentAll cases except simple pain only
resolved by a single treatment table
must be cleared by diving medical
physician
Persistent neurological deficits following
diving related incidents are generally
disqualifying
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Physicians Diving
Advisory Committee (PDAC)Meets annually – next meeting at
Underwater Intervention 2017
Any questions or concerns
– Phil Newsum
– Tony Alleman, MD MPH
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Any questions?