CRYOGENIC NEUROABLATION - ASPS · 2018. 10. 1. · * facial pain: trigeminal neuralgia * facet...
Transcript of CRYOGENIC NEUROABLATION - ASPS · 2018. 10. 1. · * facial pain: trigeminal neuralgia * facet...
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CRYOGENIC
NEUROABLATION
DR. BRIAN ALLEN DPM
SEPTEMBER 21-22, 2018
ASPS
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CRYOGENIC NEUROABLATION
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CRYOGENIC NEUROABLATION
HISTORICAL PERSPECTIVE
MECHANISM OF ANALGESIA
NERVE INJURY CLASSIFICATION
INDICATIONS
OUTCOME DATA
NON LOWER EXTREMITY
LOWER EXTREMITY
HOW TO DO THE PROCDURE
INTERDIGITAL NEUROMA
CAUTIONS
BENEFITS
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HISTORICAL PERSPECTIVE
AS ANCIENT AS THE PHARAOHS
EGYPTIANS in 3000 BCE used cold
compresses to treat the
inflammation of infected wounds.
CRYOTHERAPY
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HISTORICAL PERSPECTIVE
In the 5th century BCE Hannibals Carthaginian mercenaries
experienced the Hemostatic and destructive effects of the cold
while crossing the Alps in Route to Rome.
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HISTORICAL PERSPECTIVE
Crossing the Alps in Napoleonic times, cooling was
used for Anesthesia and Amputation.
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HISTORICAL PERSPECTIVE
• James Arnott mid 1800s
• The father of modern
cryosurgery
• Decreased tumor sizes
and improved pain
management
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HISTORICAL PERSPECTIVE
The first CRYOPROBE was developed by
COOPER in 1961.
AMOILS developed a more practical
enclosed cryoprobe based on the
JOULE-THOMPSON principle.
NELSON, BRIAN, LLOYD coined the term
CRYOANALGESIA in 1970s.
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CRYOGENIC NEUROABLATION
CRYOPROBE GAUGES 14, 16, 18
POLYTETRAFLUOROETHYLENE COATED,
GAS EXPANSION PROBE ALLOWNG THE
JOULE-THOMPSON EFFECT
A HIGH PRESSURE GAS (N20) PASSES THROUGH A SMALLER
TUBE. THIS IS RELEASED INTO THE LARGER LOW PRESSURE
OUTER TUBE. MICROSCOPIC APERATURE. THE CRYO GAS
QUICKLY EXPANDS AT THE DISTAL TIP DROPPING THE
TEMPERATURE TO EXTREMELY LOW TEMPERATURES.
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CRYOPROBE TIP
ICE BALL FREEZES TO -70 CELCIUS/-200 FARENHEIT
EPIMED
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NERVE INJURIES
CRYOANALGESIA: SECOND DEGREE OR AXONOTMESIS
SUNDERLAND CLASSIFICATION1951
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MECHANISM OF ANALGESIA
PAIN RELEIF FROM APPLICATION OF
FREEZING LEADS TO DEVELOPING
INTRACELLULAR AND
EXTRACELLULAR ICE CRYSTALS
EVANS PJD ET AL. CRYOANALGEISA. Br J Anaesth. 1981.
Creates a series of biochemical, anatomic and
physiologic events.
Leads to destruction of the
Myelin sheath and Schwann cells.
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MECHANISM OF ANLAGESIA
DESTRUCTION OF THE AXONS
AND MYELIN SHEATH
PAIN RELIEF FOR SEVERAL
MONTHS
CRYOLESIONING OF NERVE IS
ACHIEVED AT -20 DEGRESS
CENTIGRADE
ENDONEURIUM, PERINEURIUM
AND EPINEURIUM IS
PRESERVED.
NEUROMAS DO NOT DEVELOP!
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HISTOLOGY AFTER CRYO
Andre Trescot, Andre Mansano,Techniques of Neurolysis.Chapter 2.
REGENERATION
AFTER
CRYONEUROLYSIS
AXONS = GREEN
Regenerates at 1-1.5 mm/week.
Sunderlan S. Nerves and injuries. 2nd ed. 1978.
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INDICATIONS FOR
CRYOANALGESIA
* FACIAL PAIN: TRIGEMINAL
NEURALGIA
* FACET SYNDROME:
CERVICAL, THORACIC AND
LUMBOSACRAL
* OCCIPITAL,
SUPRASCAPULAR, ILO-
INGUINAL AND OTHER
SPECIFIC NEURALGIAS
• CHEST WALL PAIN
* PHANTOM LIMB PAIN
* ACUTE POST OPERATIVE
PAIN FROM THORACOTOMY
AND INGUINAL HERNIA
REPAIR
* CANCER PAIN
NON LOWER EXTREMITY
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OUTCOME DATA
* 63% PAIN RELIEF FOR OVER 1
YEAR WITH NO PERMANENT
SENSORY LOSS.
Journal of neurology, Neurosurgery and Psychiatry 1987;50:485-497
CRANIOFACIAL PAIN – 475
TRIGEMINAL NEURALGIA PATIENTS
OVER 10 YEARS FOLLOW UP
145 SUBMITTED TO CRYOSURGERY
265 SUBMITTED TO RADIO
FREQUENCY THERMOCOAGULATION
65 UNDERWENT MICROVASCULAR
DECOMPRESSION
* RECURRENCE RATE WAS
LOWER WITH CRYO
* NO CRYO PATIENT DEVELOPED
ANESTHESIA DOLOROSA
* THIS OCCURRED WITH 8% OF
THE RADIOFREQUENCY GROUP
Zakzewska JM. Cryotherapy for trigeminal neuralga.
Br J Oral Maxillofac Surg. 1991;29:1-4
TRIGEMINAL NEURALGIA
83 CRYOSESSIONS
RESULTS
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OUTCOME DATA
CRANIOFASCIAL PAIN
(TMJ) 17 PATIENTS
* DECREASE IN THE VISUAL
ANALOG SCALE FROM 6.8 TO 2
AFTER CRYOABLATION OF THE
AURICULOTEMPERAL NERVE
RESULTS
Sidebottom AJ et al. Br J Oral Maxillofac Surg 2011; 49:653-6.
INTERCOSTAL NEURALGIA
43 PATIENTS
* THE MEAN VAS SCORE DROPPED
FROM 8.2 (PREPROCEDURE) TO 2.7 IN 3
MONTH FOLLOW UP.
* 50% CONTINUED TO REPORT
SIGNIFICANT PAIN RELIEF.
Green CR et al. J Natl Med. Assoc 2002;94:716-720
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INDICATIONS IN THE
LOWER EXTREMITY
TRAUMA
NEUROMA
INTERMEDIATE DORSAL CUTANEOUS NEURITIS
MEDIAL DORSAL CUTANEOUS NEURITIS
DEEP PERONEAL NEURITIS
SURAL NEURITIS
PLANTAR FASCIITIS
PLANTAR FIBROMATOSIS
DERMAL LESIONS
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OUTCOME DATA
LOWER EXTREMITY
PROSPECTIVE NEUROMA STUDY
31 NEUROMAS IN 20 PATIENTS
ALL HAD FAILED CONSERVATIVE
TREATMENT OPTIONS
38.7% HAD REDUCED PAIN AT 1 YEAR
45.2% REPORTED PARTIAL PAIN
RELIEF
16.1% HAD REVERTED TO THE
PREPROCEDURE PAIN LEVELS
CAPARUSSO JFAS 2002 SEPT-OCT
SUCCESS RATE IS SIMILAR TO SURGICAL EXCISION.
90% WERE SATISFIED AND SAID THEY WOUD HAVE
THE PROCEDURE AGAIN.
RESULTS
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OUTCOME DATA
LOWER EXTREMITY
CHRONIC PLANTAR
FASCIITIS
59 PATIENTS (61 HEELS)
ALL FAILED CONSERVATIVE
TREATMENTS
RESULTS
PAIN RATING ON THE VAS
DROPPED FROM 8.38 TO 1.26
DURING THE 12 MONTH
FOLLOW UP
Allen BH et al. J Foot Ankle Surg. 2007;46:75-79
PHANTOM LIMP PAIN
5 PATIENTS
THREE OF FIVE PATIENTS
HAD 90-100% PAIN RELIEF.
ONE HAD 40% PAIN RELIEF
AND THE OTHER 20% PAIN
RELIEF. Moesker AA et al. Pain Pract. 2014; 14:52-6.
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CRYO EQUIPMENT
Uses Nitrous Oxide as a delivery systemEPIMED
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INSTRUMENTS
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NEUROMA PROCEDURE
LOCAL BLOCK PROXIMAL
TO THE AREA
LIDOCAINE PLAIN FIRST
LIDOCAINE WITH EPI NEXT
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NEUROMA PROCEDURE
SMALL STAB INCISION
JUST PROXIMAL TO
THE NEUROMA
FREE UP THE DEEP
TISSUES (SPATULA)
INSERT THE PROBE
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NEUROMA PROCEDURE
START THE CRYO MACHINE. PEDAL TO THE METAL.
THIS RAPID FREEZING THAWING AND
FREEZING CAUSES THE DISRUPTION OF
THE AXONS AND MYELIN SHEATH
CRYO FREEZE CYCLE
3 MINUTES OF FREEZE
30 SECONDS TO THAW
3 MINUTES OF FREEZE
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NEUROMA PROCEDURE
IRRIGATE
* STEROID FLUSH VS. SALINE
* BETADINE SOAKED GAUZE WITH
BACITRACIN
* 4X4 GAUZE, GAUZE ROLL, COBAN
BANDAGE
FINAL STEPS
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NEUROMA PROCEDURE
POST PROCEDURAL INSTRUCTIONS
* BE A “ COUCH POTATO ” FOR A FEW DAYS
* OK FOR WEIGHT BEARING
* NSAIDS ARE OK
* SHOE GEAR TO TOLERANCE
* REMOVE THE BANDAGE IN 24 HOURS
* APPLY TOPICAL ANTIBIOTIC AND
BANDAID
* THEY CAN GET IT WET IN 24 HOURS
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PLANTAR VERRUCA
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PLANTAR VERRUCA
SMALL STAB INCISION
BENEATH THE VERRUCA
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PLANTAR VERRUCA
GO BENEATH THE
LESION AT THE
BASEMENT
MEMBRANE
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PLANTAR VERRUCA
ACHIEVE FROSTBITE
(BLANCH THE SKIN)
FOR 2-3 MINUTES
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CRYO DEEP PERONEAL
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CRYOGENIC NEUROABLATION
• CAN PERFORM WITH OR WITHOUT IT
• ESPECIALLY GOOD FOR DEEP TISSUE PATHOLOGY
• PLANTAR FASCIA AND FIBROMAS
WHY NOT USE IT? ICE BALL
MEASURES 1 CM AND CAN
COVER A LARGE AREA
ABSOLUTE ACCURATE
PLACEMENT OF THE ICE
BALL IS IMPORTANT BUT
REMEMBER THE SIZE.
ULTRASONOGRAPHY
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CAUTIONS
ABSCESS - VERY RARE
SCAR TISSUE FROM PREVIOUS
NEURECTOMIES MAY NOT PENETRATE
WELL ENOUGH DUE TO ENCAPSULTATION
FROST BITE, CHANGE IN PIGMENTATION
DAMAGE TO ADJACENT STRUCTURES IF THE
CRYOPROBE SHAFT FREEZES
AVOID ADJACENT INTERSPACES
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BENEFITS OF CRYOSURGERY
AVOIDS COSTLY SURGERY
EASY RECOVERY
DOESN’T LEAD TO A “STUMP” NEUROMA
IN OFFICE – QUICK UNDER LOCAL ANESTHESIA
ANOTHER OPTION PRIOR TO SURGERY
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BENEFITS OF CRYOSURGERY
AVOIDS THIS!!!!
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CONCLUSION
CRYOSURGERY IS A MINIMALLY
INVASIVE PROCEDURE IN THE
OFFICE THAT HAS BECOME A
GREAT OPTION TO TRADITIONAL
SURGERY.
IT IS WIDELY ACCEPTED IN OTHER
MEDICAL SPECIALITIES AND
ALLOWS A RAPID RECOVERY
AFTERWARDS.
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CRYOGENIC NEUROABLATION