This is a lecture by Joe Lex, MD from the Ghana Emergency Medicine Collaborative. To download the editable version (in PPT), to access additional learning modules, or to learn more about the project, see http://openmi.ch/em-gemc. Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Share Alike-3.0 License: http://creativecommons.org/licenses/by-sa/3.0/.
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GEMC- EMedHome Board Review: Procedures- Resident Training
1. Project: Ghana Emergency Medicine Collaborative
Document Title: EMedHome Board Review: Procedures
Author(s): Joe Lex, MD, FACEP, FAAEM, MAAEM (Temple University)
2013
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3. EMedHome Board Review: Procedures
Joe Lex, MD, FACEP, FAAEM, MAAEM
Associate Professor, Emergency Medicine
Temple University School of Medicine
Philadelphia, PA USA
3
5. General Rules before Doing a Procedures
•Explain risks and benefits, including what will happen if you don’t do it
•Obtain written informed consent (when possible)
•Use appropriate monitoring equipment
•Position patient properly
5
6. General Rules before Doing a Procedures
•Clean / prep / drape appropriate body part
•Use aseptic / sterile technique
•Provide post-procedure instructions
6
7. For this talk…
•Not the everyday procedures
•No RSI
•No procedural sedation
•No laceration repair
•Things you MIGHT want to look at a reference before doing
7
8. For this talk…
Indications / Contraindications
Procedure Description
Procedure Pictorial (if available)
Complications
8
9. Indication Nasotracheal Intubation
•Spontaneously breathing patient requiring airway management
•Alternative to RSI when oral airway may be obstructed
18
14. Indication / Contraindication Retrograde Intubation
Indication
•Patient requires airway
•Less invasive means have failed
Contraindication
•Ability to intubate / ventilate by less invasive means
•Trismus; inability to open mouth
27
15. Procedure Retrograde Intubation
•Stabilize patient’s larynx, identify cricothyroid membrane
•Connect 16- to 18-gauge catheter- over-needle to 10 ml syringe contained 3 mL sterile saline
•Puncture cricothyroid membrane at 20–30o angle to skin, pointed at head
•Aspirate – should see air bubbles
28
17. Procedure Retrograde Intubation
•Advance catheter-over-needle until hub is against skin
•Remove syringe and needle
•Feed guidewire through catheter until it comes out patient’s mouth
•Advance guidewire until only ~5cm protruding from neck
•Stabilize wire at neck with hemostat
30
30. Procedure Needle Thoracostomy
•Connect a 14- to 16-gauge catheter- over-the-needle to a 5- to 10-mL syringe without the plunger
•Insert needle into 2nd intercostal space, midclavicular line
•Advance needle to rush of air, then advance until hub against skin
•Place chest tube
52
Recommended Reference: Reichman EF, Simon RR: Emergency Medicine Procedures
32. Indications Resuscitative Thoracotomy
•Penetrating chest trauma patients who are hemodynamically unstable and those who demonstrated palpable pulse, blood pressure, pupil reactivity, any purposeful movement, organized cardiac rhythm, or any respiratory effort either in the field or ED, but subsequently deteriorated
55
34. Procedure Resuscitative Thoracotomy
•Make incision through skin, subcutaneous tissue, superficial muscles
•Incise intercostal muscles with Mayo scissors
•Insert rib spreader with handles down and open
•Grasp and open pericardium
57
Recommended Reference: Reichman EF, Simon RR: Emergency Medicine Procedures
35. Complications Resuscitative Thoracotomy
•Injury of personnel
•Laceration of internal mammary or intercostal arteries
•Laceration of lung or myocardium
•Transection left phrenic nerve
•Laceration of myocardium or coronary artery
•Delayed cardiac compressions
65
41. Diagnostic Thoracentesis
•Use 18-g needle on 50mL syringe containing 1mL heparin (100U/ml)
•Insert needle 5–10 cm lateral to spine 1 or 2 intercostal spaces below upper level of pleural effusion
•Go over top of rib
•Stop when you get enough
•Post-procedure chest x-ray
72
42. Therapeutic Thoracentesis
•Make skin incision at insertion site
•Use 14- to 18-gauge catheter-over- needle attached to 10 mL syringe
•Insert needle 5–10 cm lateral to spine 1 or 2 intercostal spaces below upper level of pleural effusion
•When fluid reached, angle needle caudally until hub against skin
73
43. Therapeutic Thoracentesis
•Withdraw needle, leaving catheter
•Cover catheter with gloved finger (prevent air entry)
•Attach hub to 3-way stopcock attached to 50 mL syringe
•Aspirate and move fluid
•Terminate procedure when symptoms relieved or after 1000 mL
74
Recommended Reference: Reichman EF, Simon RR: Emergency Medicine Procedures
53. Complications Lumbar Puncture
•Post-dural headache: ~1/3
–Post-tap position does not matter
•Localized pain
•Cerebral herniation
•Subarachnoid epidermoid cyst
88
54. Indication / Contraindication Intraosseous Infusion
Indication
•Urgent vascular access when traditional methods have failed
Contraindication
•Diseased / osteoporotic bone
•Overlying cellulitis / deep burn (relative)
89
55. Procedure Intraosseous Infusion
•Identify landmarks: distal femur, proximal tibia, proximal humerus, sternum
•Stabilize extremity
•Insert needle perpendicular to long axis of bone
•In kids: direct needle away from growth plate
90
Recommended Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
58. Indication / Contraindication Diagnostic Peritoneal Lavage
Indication
•Patient with abdominal trauma without indication for emergent exploratory laporotomy
Contraindication
•Patient with abdominal trauma and with indication for emergent exploratory laporotomy
98
59. Procedure Diagnostic Peritoneal Lavage
•Introduce needle midline through abdominal wall 1 to 2cm below umbilicus at 45o angle to skin
•Apply negative pressure as you advance needle toward pelvis
•Feel for three distinct ‘pops’ – skin, fascia, peritoneum
•Advance 2 – 3 mm after 3rd ‘pop’
99
60. Procedure Diagnostic Peritoneal Lavage
•If you find blood end of procedure
•Insert guidewire through needle, then remove needle
•Make small skin incision adjacent to guidewire
•Place lavage catheter over guidewire and advance into peritoneal cavity
100
61. Procedure Diagnostic Peritoneal Lavage
•Infuse 1L crystalloid solution, then place empty bag on floor
•Collect minimum 200 mL fluid, but as much as possible
•Remove catheter when finished
•Send fluid for cell count
–Threshold 100,000 RBCs/mm3
101
Recommended Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
68. Procedure Pericardiocentesis
•Insert 18-gauge spinal needle between xiphoid process and left costal margin at 30 – 45o angle
•Aim tip toward patient’s left shoulder
•Aspirate fluid
•Use ULTRASOUND when possible
112
Recommended Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
72. Indication / Contraindication Venous Cutdown
Indication
•Immediate need for vascular access, no peripheral or central available
Contraindication
•Proximal extremity vascular injury / long bone fracture
•Overlying skin infection, coagulopathy (relative
117
73. Procedure Venous Cutdown
•Location of greater saphenous vein (GSV): 2.5 cm anterior and 2.5 cm superior to medial malleolus
•Make transverse skin incision from anterior tibial border to posterior tibial border
•Isolate GSV
118
74. Procedure Venous Cutdown
•Insert curved hemostat tip down, scrape along periosteum starting on posterior border until the tip reaches the anterior border
•Rotate hemostat 180o so tip faces upward
•Open the jaws of the hemostat – the GSV should be visible
119
75. Procedure Venous Cutdown
•Switch to straight hemostat, remove curved hemostat
•Insert 16- to 18-gauge IV catheter- over-needle into vein
120
Recommended Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
76. Procedure Venous Cutdown: Groin
•Identify where scrotal / labial fold meets the thigh ~2cm below site for femoral central venous line
•Make transverse incision medial to lateral beginning at fold
•Dissect subcutaneous tissue with curved hemostat
•Identify and isolate GSV
123
77. Procedure Venous Cutdown: Groin
•Identify and isolate GSV
•Cannulate either directly or using Seldinger technique
124
79. Indication / Contraindication Anterior / Posterior Nasal Pack
Indications
•Epistaxis
Contraindications
•None
126
Recommended Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
80. Procedure Posterior Nasal Pack
•Prepare the pack: use 3 inch dental rolls, tonsil packs, or 4x4 gauze
•Form a tight cylindrical roll with gauze
•Tie two pieces of umbilical tape or 0- silk suture around pack to divide it into thirds (see picture)
131
82. Procedure Posterior Nasal Pack
•Insert red rubber catheters through nostril and pull out through mouth
•Attach pack to red rubber catheters
•Pull pack into place
–Use finger to pass pack around soft palate and uvula
•Place anterior nasal pack
•Secure ties of posterior pack
133
Recommended Source: Reichman EF, Simon RR: Emergency Medicine Procedures
83. Procedure Posterior Nasal Balloon
•Gather nasal speculum, light source, suction, anethetizing and packing materials
•Place patient in “sniffing position,” give emesis basin and some tissues
•Anesthetize nasal mucosa using cotton pledgets soaked in LET (or cocaine)
142
84. Procedure Posterior Nasal Balloon
•Lubricate Foley catheter or posterior balloon with antibiotic ointment
•Insert transnasally until visible in posterior oropharynx
•Inflate balloon with 7 ml of water, gently retract catheter ~2 to 3 cm until lodged in posterior nasopharynx
143
85. Procedure Posterior Nasal Balloon
•Inflate balloon with additional 5 to 7 ml of saline
•Secure pack by taping to patient's cheek
144
89. Procedure Peritonsillar Abscess Aspiration
•Identify area of maximum fluctuance
•Cut needle cap so that needle projects only 1cm beyond distal cap
•Depress / distract tongue
•Insert needle, staying parallel to mouth floor
•Advance and aspirate
149
94. Procedure: Thrombosed External Hemorrhoid Excision
•Identify area to be incised
•Use two radial incisions starting near center of anus
•Dissect skin and thrombosis with scissors
•DO NOT cut anal sphincter
•Control bleeding: AgNO3
156
96. Procedure Nail Bed Repair
•After digital / regional block: insert closed tip of fine scissors between nail plate and nail bed
•Advance tip while opening / closing blades to separate plate from bed
•Stop scissors when blade tips at eponychium
161
97. Procedure Nail Bed Repair
•Grasp nail plate with hemostat, pull along long axis of finger
•Repair nailbed laceration with absorbable suture
•Replace nail plate onto nail bed. Suture in place for ~7 days
•If nail missing petrolatum gauze
162
Recommended Source: Reichman EF, Simon RR: Emergency Medicine Procedures
98. Complications Nail Bed Repair
•Complete nail loss (expected)
•Localized infection
•Nail growth abnormalities
165
104. Procedure Felon Incision & Drainage
•If central pulp: central longitudinal finger pad incision with #11 scalpel
•Radial / ulnar fluctuance: medial / lateral pad incision
•Do not cross DIP
•Break up loculations
•Irrigate, pack with drain / dressing
173
109. Procedure Escharotomy
•Sedate patient / use local anesthesia
•Use scalpel / cautery make incision along medial and lateral aspect of involved extremity
•Make incision from 1cm proximal to burn 1 cm distal to burn
•Extend only through full thickness of skin
179
110. Procedure Escharotomy
•Chest: incise along anterior axillary line from clavicle to costal margin bilateral – may join with another
•Neck: incise posterior and lateral to vascular structures
180
111. Procedure Escharotomy
Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
181
112. Procedure Escharotomy
Source: Tintinalli JE, et al., Tintinall’s Eergency Medicine: A Comprehensive Study Guide, 7th Edition: http://www.accessmedicine.com
182
115. Contraindication Urethrogram & Cystogram
Contraindication
•Hemodynamic instability
•Acute urethritis in patient with low risk
•Cystogram contraindicated if urethral injury identified on urethrogram
185
116. Procedure: Retrograde Urethrogram & Cystogram
•Use Cystographin, Renographin-60, or Hypaque® 50%
•Retract and secure penile foreskin
•Prime catheter tubing with contrast prior to inserting
•Insert catheter until retention balloon is within glans (fossa navicularis)
186
117. Procedure: Retrograde Urethrogram & Cystogram
•Straighten penis across thigh to prevent urethral folding
•Inject 50-60mL over 5–10 seconds
•Can also use 60mL Toomey irrigating syringe
•Get KUB during injection final 10mL
•Extravasation outside urethral contour disruption
187
118. Procedure: Retrograde Urethrogram & Cystogram
•Contrast in bladder with extravasation partial disruption
•No extravasation proceed with retrograde cystogram
188
Recommended Source: Reichman EF, Simon RR: Emergency Medicine Procedures
119. Procedure: Retrograde Urethrogram & Cystogram
•No extravasation proceed with retrograde cystogram
•Advance catheter into bladder
•Inflate balloon and gently pull back to lodge balloon at bladder neck
•Remove plunger from 60mL syringe
190
120. Procedure: Retrograde Urethrogram & Cystogram
•Fill bladder by gravity with 300 - 350mL of contrast
•Clamp catheter with hemostat
•Obtain KUB look for filling, extravasation
•Release clamp and drain contrast by gravity
191
123. Indications Perimortem C-Section
•To optimize maternal cardiopulmonary resuscitation
•Rescue of a viable fetus >24 weeks gestation is an important consideration, but such rescue is always secondary to the safety and life of the mother
195
124. Contraindications Perimortem C-Section
• Mother with serious brain injury but otherwise hemodynamically stable, fetus shows no signs of distress.
•Inability to adequately resuscitate infant after delivery
•Extreme fetal prematurity/immaturity
196
125. Procedure Perimortem C-Section
•Make a vertical midline skin incision with a #10 scalpel blade beginning 2 to 3 cm above pubic symphysis and extending to 1 cm below umbilicus
•Ignore any subcutaneous bleeding unless it is arterial
–Clamp bleeding artery or use electro- cautery unit to coagulate if available
197
Recommended Source: Reichman EF, Simon RR: Emergency Medicine Procedures
126. Procedure Perimortem C-Section
•Extend incision through subcutaneous fat to rectus sheath.
•Grasp and elevate rectus sheath using a toothed forceps
•Make an incision in the rectus sheath with a Mayo scissors. Extend the rectus sheath incision superiorly and inferiorly with a Mayo scissors
199
127. Procedure Perimortem C-Section
•Expose the uterus – the underlying peritoneum should be visible
•Insert retractors to fully expose the peritoneal membrane
•Grasp and elevate the peritoneal membrane with a toothed forceps
•Incise the peritoneal membrane with a Mayo or Metzenbaum scissors
201
128. Procedure Perimortem C-Section
•Make reasonable attempts to protect the bowel and bladder from injury
•Elevate the bowel off the field and cover it with a saline soaked towel
•Place a bladder retractor over the pubic symphysis to retract the rectus sheath and bladder
202
129. Procedure Perimortem C-Section
•Identify the position of the fetal head by palpating the uterus
•Make a 2 to 4 cm midline vertical incision in the uterus
–The amniotic sac will bulge through the incision if the membranes are intact
•Place a finger into the uterine incision and aimed vertically
204
130. Procedure Perimortem C-Section
•Insert one blade of a bandage scissors between the finger and the uterine wall
–The other blade of the scissors should be outside the uterus
•Extend the vertical uterine incision fundally, superior and away from the bladder
205
131. Procedure Perimortem C-Section
•Rupture the amniotic membranes with a clamp or other blunt instrument
•Carefully transect the placenta if it is anterior to the fetus
•Insert a hand between the pubic symphysis and the fetal occiput
208
132. Procedure Perimortem C-Section
•Advance the hand to the base of the occiput
•Flex the fetal head and apply gentle anteriorly and superiorly directed traction to elevate and deliver the head
210
135. Procedure Perimortem C-Section
•Deliver the shoulders in a manner similar to that of a vaginal delivery
•Apply gentle upward traction on the head while an assistant applies pressure on the uterine fundus
–First deliver the anterior shoulder
–Deliver the other shoulder followed by the torso and lower extremities
216
136. Procedure Perimortem C-Section
•Clamp umbilical cord with hemostat or umbilical cord clamp approximately 10 to 15 cm from fetus
•Attach second hemostat or clamp 2 to 3 cm distal to the first
•Cut umbilical cord between the clamps with a Mayo scissors
•Resuscitate the neonate
218
137. Complications Perimortem C-Section
•Maternal sepsis
•Maternal visceral injury
•Maternal hemorrhage
•Fetal injury secondary to delivery
•Possible benefits of maternal and / or fetal survival should far outweigh these considerations
219
138. Resources
•Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 7e Judith E. Tintinalli, J. Stephan Stapczynski, O. John Ma, David M. Cline, Rita K. Cydulka, and Garth D. Meckler
•Emergency Medicine Procedures Eric R. Reichman, Robert R. Simon
220
139. Resources
•Atlas of Emergency Medicine, 3e Kevin J. Knoop, Lawrence B. Stack, Alan B. Storrow, R. Jason Thurman
221
140. Summary
•Explain risks and benefits, including what will happen if you don’t do it
•Obtain written informed consent (when possible)
•Use appropriate monitoring equipment
•Position patient properly
222
141. Summary
•Clean / prep / drape appropriate body part
•Use aseptic / sterile technique
•Provide post-procedure instructions
•Many of these procedures available on YouTube
223