Oral Boards Flashcards
(120 cards)
RSI
- Preoxygenate
- Give roc (1 mg/kg) and ketamine (1 mg/kg)
- Use Mac blade, visualize the vocal cords, pass ETT past the vocal cords, check for color change on capnography, listen for BL breath sounds, secure ETT
- CXR to confirm placement
Cricothyrotomy (surgical airway)
*Bag mask ventilate prior
1. Extend neck
2. Palpate for cricothyroid membrane (inferior to thyroid cartilage, superior to cricoid cartilage)
3. Make 3cm vertical skin incision through skin
4. 1cm transverse incision over membrane
5. Place a bougie into trachea
6. Pass a lubricated 6mm cuffed ETT over the bougie, remove the bougie
7. Check capnography
8. Secure tube
Liver transplant
*A-line, central line (for CVP measurement)
1. R-sided hockey stick incision
2. Divide 4 ligamentous attachments of liver
3. Dissect hepatoduodenal ligament (divide hepatic artery branches, high ligation of common hepatic duct, isolate portal vein)
4. IVC
a. Caval replacement technique (classic):
Isolate and divide retrohepatic vena cava
Anastomose supra and infrahepatic vena cava
b. Piggyback technique:
Divide short hepatic veins with resection of liver off vena cava
Anastomose suprahepatic vena cava to recipient hepatic vein cuff, ligate infrahepatic vena cava
5. Portal vein anastomosis
6. Hepatic artery anastomosis
7. Bile duct anastomosis
8. Close
Kidney transplant
- Place 3-way foley to instill bladder
- Hockey stick incision R groin
- Divide inferior epigastric vessels
- Divide through abdominal wall, remain retroperitoneal by sweeping peritoneum medially
- Identify and dissect out external iliac vessels, ligating lymphatics
- End-to-side anastomosis to donor renal artery and vein with fine monofilament suture, reperfuse kidney
- Fill bladder, donor ureter to bladder anastomosis with absorbable suture over a ureteral stent
- Close detrusor muscle loosey with absorbable suture
- Check anastomosis and hemostasis
- Close incision in several anatomic layers
Awake tracheostomy (pre-laryngectomy)
- Administer local anesthesia
- 3cm vertical incision in midline below cricoid cartilage
- Dissect down to avascular plane of midline raphe b/w sternohyoid and sternothyroid muscles, divide any overlying thyroid isthmus tissue to reach trachea
- Identify inferior border of cricoid cartilage and retract superiorly
- Place trach between second and third tracheal rings
Biochemical adrenal workup
- BMP (K)
- Aldosterone
- Renin
- Early AM cortisol (or can go straight to 1mg low dose dexamethasone suppression test)
- ACTH
- DHEA-S
- Plasma fractionated metanephrines
Laparoscopic left adrenalectomy
- Right lateral decubitus
- Ports along subcostal margin
- Take down splenic flexure of colon and lateral attachments to spleen, mobilizing both medially to reveal the adrenal gland
- Identify and ligate the adrenal vein (comes off L renal vein, stay close to adrenal gland to avoid injury to renal vein)
- Mobilize the adrenal gland, taking vessels with cautery
- Place specimen in endocatch bag, close
Laparoscopic right adrenalectomy
- Left lateral decubitus
- Ports along subcostal margin
- Mobilize R lobe of liver by taking down right triangular ligament, retracting R lobe of liver medially-anteriorly to reveal adrenal gland
- Dissect plane between adrenal gland and IVC
- Identify and ligate R adrenal vein
- Mobilize the adrenal gland, taking vessels with cautery
- Place specimen in endocatch bag, close
RNY hepaticojejunostomy
- Right subcostal incision
- Careful portal dissection to identify anatomy
- Careful dissection of bile duct, staying on anterior side to preserve remaining vasculature posteriorly (if needed, identify and expose the long extrahepatic portion of the left hepatic duct to find a healthy spot for anastomosis)
- Run jejunum from LOT and find a spot that easily reaches to the RUQ, divide bowel with a GIA stapler, make hole in transverse colon mesentery to the right of the middle colic vessels, bring roux limb up
- Make broad (2cm) enterotomy on roux limb and create end-to-side hepaticojejunostomy with absorbable fine monofilament suture in interrupted fashion
- Stapled JJ
- Leave drain
Elective open AAA repair
- Monitor w/ a-line, central line, foley
- Midline incision
- Reflect small bowel to right, lift T-colon, insert retractor
- Dissect duodenum from IVC and aorta, exposing proximal clamp site (just below renal arteries)
- Dissect aorta distally to iliac arteries, exposing distal clamp sites
- Choose appropriate graft size, heparinize (80u/kg), lasix, and mannitol
- Clamp iliac arteries and then aorta
- Open aneurysm sac opposite IMA, remove thrombus, oversew back-bleeding lumbar arteries
- Sew in graft starting proximally, then distally, with 3-0 monofilament suture
- Unclamp, give protamine, ensure hemostasis
- Close aneurysm sac and retroperitoneum over graft (prevent aorto-enteric fistula)
- Close, check distal pulses
Open ruptured AAA repair
- Midline incision
- Immediately gain supraceliac aortic control by dividing gastrohepatic ligament and R crus and bluntly dividing around R crus to place clamp around aorta
- Reflect small bowel to right, lift T-colon, insert retractor
- Dissect duodenum from IVC and aorta, exposing proximal clamp site (just below renal arteries)
- Dissect aorta distally to iliac arteries, exposing distal clamp sites
- Choose appropriate graft, heparinize
- Clamp iliac arteries
- Open aneurysm sac opposite IMA, remove thrombus, oversew back-bleeding lumbar arteries
- Sew in graft starting proximally, then distally, with 3-0 monofilament suture
- Unclamp (one iliac at a time to avoid profound hypotension w/ LE reperfusion), ensure hemostasis
- Close aneurysm sac and retroperitoneum over graft (prevent aorto-enteric fistula)
- Close, check distal pulses (consider leaving open bc high risk of ACS)
ABI
<0.9 = PAD
<0.5 = rest pain/critical limb ischemia
Common femoral artery exposure
- Feel for pulse
- Vertical incision ⅓ above inguinal ligament and ⅔ below it
- Open femoral sheath
- Dissect out femoral artery and its branches, control w/ vessel loops
Below-knee popliteal artery exposure
Frog leg position
1. Incision 1 cm medial to the posterior border of the tibia (be careful of GSV!)
2. Retract gastroc posteriorly, dissect soleus from the tibia
3. Identify popliteal artery medial to the popliteal vein and tibial nerve
Heparin dose for vascular cases
80u/kg
Open LE bypass
- Prep low abdomen and BL extremities
- Dissect out inflow and outflow target vessels FIRST before harvesting vein (gotta make sure you have adequate targets)
- Harvest ipsilateral GSV (or can do contralateral, or arm vein, or PTFE)
- Use tunneling device to create tunnel
- HEPARINIZE (80u/kg)
- Perform distal anastomosis, then proximal, being sure not to kink graft
- Intraop duplex to assess patency of graft
- LE pulse exam
PAD workup (vascular workup and preop workup)
Vascular workup:
1. ABI
2. Segmental pressures (ABI along whole leg) - can further evaluate with CTA w/ runoff
3. Toe pressures (in DM)
Preop workup:
1. Cardiac eval
2. Vein mapping
GSV harvest
- Expose saphenous vein [MEDIAL] of adequate harvest through skip incisions
- Ligate side branches
- Ligate and divide vein distally and at sapheno-femoral junction proximally
Post-op mgmt after LE bypass
- ASA 81 (or plavix) for everyone
- Surveillance duplex US at 1, 6, and 12 months, then annually
Open femoral endarterectomy
- Systemic heparin (bolus 80 u/kg, followed by drip 18u/kg/h w/ PTT goal 60-80)
- Prep abdomen, BLEs from groin to toes circumferentially
- Vertical incision over/below the inguinal ligament over the pulse
- Dissect down to femoral sheath, ligating lymphatic branches
- Identify common femoral, SFA, and profunda arteries and encircle with vessel loops
- Further systemic heparin to PTT 60-80
- Tighten vessel loops, open femoral artery transversely at bifurcation
- Pass 5Fr fogarty catheter proximally until it returns twice with no thrombus; repeat distally
- Flush with heparinized saline, close arteriotomy with 5-0 prolene suture interrupted
- Close incision in layers
- Check for distal pulses/signals
- Consider ppx 4-compartment fasciotomies if ischemia >6h
Indications for CEA
Asymptomatic with >70% stenosis
Symptomatic with >50% stenosis
CEA
- A-line for BP monitoring
- Position supine, arms tucked, neck gently extended and turned to contralateral side
- Incision along anterior border of SCM, divide platysma, retract SCM laterally
- Identify and open carotid sheath, identity and protect vagus and hypoglossal nerves, divide facial vein (it’s usually positioned just over the carotid bifurcation)
- Identify and encircle CCA, ECA, ICA w/ vessel loops
- Systemic heparin (80u/kg)
- Clamp ICA, then CCA, then ECA
- Assess stump pressure of ICA, if inadequate place shunt
- Longitudinal arteriotomy from CCA to ICA ending distal to clot, perform endarterectomy, place tacking sutures if needed, flush w/ heparinized saline
- Sew in patch with 5-0 prolene suture
- Backbleed ICA and ECA, forward bleed CCA; check hemostasis of patch; remove clamps from ECA, then CCA, then ICA
- Place subplatysmal drain
- Close neck in layers
- Completion US and check neuro status prior to leaving OR
When to perform CEA after CVA
In pts who have recovered neurologically: CEA 1-2 weeks after CVA
In pts who have not yet recovered: wait at least 3 weeks (the risk of operating too soon is conversion of an ischemic stroke to a hemorrhagic stroke)
Evolving stroke sx: CEA ASAP to prevent major stroke
Open pancreatic debridement
- Upper midline incision
- Divide gastrocolic ligament to access lesser sac and expose pancreas
- Drain any purulent material and debride any necrotic tissue, preserving as much healthy pancreatic tissue as possible
- Leave drains
- Consider placing feeding tube
- Ensure hemostasis and close