ExtraThoracic Surgery Flashcards
Different types of Extrathoracic Surgery
Breast biopsy/lumpectomy Sentinel lymph node biopsy Mastectomy Mastectomy with reconstruction Clavicle repair
Breast biopsy/lumpectomy Terminology
- Excisional biopsy = benign
* Lumpectomy = cancerous lesion
- Patient population
- Lumpectomy =_____(age)
- wire-localized breast biopsy =___(age)
- Mainly what sex (M/F)
> 15 yr ; 25-90 yr; female
Palpable lesions characterized by
masses, nodules, asymmetric thickening
•Breast biopsy/lumpectomy manifestations
edema, redness, brawny discoloration, ulceration
• Bloody/pathological nipple discharge
- Usually benign intraductal papilloma
* Rarely carcinoma
Percutaneous Hookwires in breast Using 2 imaging studies? Explain
MRI and breast US.
Radiologist places Percutaenous hook-wires close to lesion
Surgeon removes breast tissue surrounding wire
Confirm removal of wire and target lesion with radiography and ultrasound
Paravertebral block put at risk for
pneumothorax
Block for lumpectomy
• Factors to pick a block
• Paravertebral block
• With MAC or GA
• Pectoral nerve block type II
size, location, quantity, trajectory of wires, patient preferences
ABT breast surgery
Antibiotics optional, cefazolin 1 g IV (dose: < 80 kg =
1 g, > 80 kg = 2 g)
Breast surgery closing
Closing specimen radiograph result must be
obtained
Breast surgery approx time
Pain
Time 0.5-1.5 h
2-5
M and M of breast surgery
M/M seroma, ecchymosis, hematoma, infection
Sentinel lymph node biopsy
Most likely node?
Invasive breast cancer without pathologic lymph nodes
• Most likely node to FIRST harbor metastatic tumor cells
• No metastasis means no cells = other lymph nodes
negative for CANCER
• SNL =
first node to drain afferent lymphatics from a particular region of breast. Therefore
Lymphatic mapping
What should surgeon tell anesthesiologist?
• Dyes
• Drops SpO2 (2-5% 20-25 min after injection)
Injected (clock plane , 6, 12, 9, 3)
Sentinel node biopsy
No paralyzing, no muscle relaxants.
Technetium sulfur colloid (TSC)
Low radiactive tracer
No additional protection required
Unique considerations BP
BP cuff cannot be an operative side, ask about muscle relaxation.
SNL antibiotics
Cefazolin 1g
SNL EBL, SNL timing
Minimal
10-30 min but up to 1.5 h with axillary lymph node
dissections
M and M with SNL
Allergic reaction to dyes
Anesthesia considerations for breast biopsy/SNL
Pre-Op
• Anxious, require midazolam, lab testing not always necessary (except HCG if child-bearing age)
Anesthesia considerations for breast biopsy/SNL
Intra-OP
MAC: Propofol 25-100 mcg/kg/min, supplement with fentanyl/remi and midazolam, titrate to effect
REMI bolus: 0.5-1mcg/kg 90 seconds prior to initial incision with local anesthesia
Consider HIGH Propofol
If concerns about HR for Breast biopsy
Give Glycopyrrolate (Robinul)
• GA:
may mask or LMA if appropriate • Standard induction,
maintenance, emergence • Isosulfran dye reaction =
pruritus, localized swelling, blue hives • Diphenhydramine 10 -50mg IV, epi if BP ↓
• Postoperative •
Urine, emesis, or stool might be blue for 24 -48h
• Immediate breast reconstruction
2 types
• Usually not if postop chest radiation needed Two types: • Prosthetic reconstruction • Autologous myocutaneous flap
Position for mastectomy , total and lumpectomy
Supine, ipsilateral arm abducted
Mastectomy time
1.3- 3 hours long
EBL mastectomy
150-500ml lumpectomy is 25-100ml
Morbidity and mortality
LYMPHADEMA
SEROMA
INFECTION
Nerve damage
Axillary part of the surgery consideration
NO PARALYTICS
Antibiotics for modified radical, lumpectomy and total
Cefazolin 2g IV
• Preop Mastectomy
• Resp:
•
hx radiation therapy to chest = compromise;
CXR if any pulmonary signs
Preop Mastectomy Cardio:
Chemo agents can cause cardiomyopathy,
order diagnostic studies if presentation indicates
Preop mastectomy Neuro:
breast CA can mets to CNS (focal neuro deficits, ↑ICP, AMS)
Preop Mastectomy Hem:
Anemia/thrombocytopenia associated with chemo
Doxorubicin associated with
CARDIOMYOPATHY
Post op Emergence =
may require binder in sitting position = keep them asleep through this process
Post op considerations: ASk about
Binder (keep asleep till then)
Multilevel paravertebral blocks level MASTECTOMY
T1- T6
How many ml per level
• 4-5 mL/leve
2 local anesthetics you can use for mastectomy
Bupivacaine :0.5%
Ropivacaine 0.5%
Contraindications to regional anesthesia
Contraindications: patient refusal, local
anesthetic allergy, pathology or anatomical
distortion of paravertebral space, infection at site
Anesthetic considerations Post Op complications
and symptoms
Complications: pneumothorax • Symptoms? • Others (2° PNB) **** Failed block (10%) ****Pleural puncture **** Pneumothorax (PIP goes up, CO2 goes down) **** Horner’s syndrome • Accidental epidural spread of local anesthetic • PONV
Pneumothorax interventions
O2 100 FiO2
Chest Xray
Remove Positive pressure ventilation
Signs of Pneumothorax
breath sounds decreased on one side
Avoid Positive pressure ventilation
Horner’s syndrome
Ptosis, myosis droops on side LA was injected.
Tips for breast surgery
Know local anesthesia toxicity levels
• OR table may be angled/turned sideways (Disconnect ET before moving)
• Breast biopsies can turn into mastectomy
LA toxicity
Serum levels , LA in tissue doesn’t always transfer to vessels.
Lidocaine with epi
7mg/kg
Lidocaine without epi
4mg/kg
LTA (laryngotracheal Topical Anesthesia)
4ml 4%
Lidocaine and marcaine
Additive effects, Consider both can increase toxicity
Interscalene Block
Clavicle
Clavicle repair
Position
Beach chair or supine, head turned away from
surgical field, bump placed behind affected
shoulder (ANNOYING)
HOLD HEAD entire time
Unique considerations
- RSI if trauma
- ISB will NOT help cover proximal clavicular pain
- IV/cuff on nonoperative side
Clavicle repair GETA or
GETA or GLMAA
• Tape tube on one side opposite of surgical field
Clavicle repair
Surgeon may require SBP < 100 mm Hg to prevent
bleeding
Complications of clavicle repair
Complications: brachial plexus or subclavian artery
injury
Eye protection is important
• Tape eyes closed, place pads over eyes, consider goggles (DON’T)
• Perform a thorough distal neuro assessment on
the affected arm both pre/post
• Circulation, sensation, motor function
For beach chair Carefully stabilize
head in beach chair position
• Tape the ETT or LMA SEVERELY
• Head will be under drapes
Ductoscopy
Give surgeon clear view between diseased and healthy breast tissues (camera into milk duct)
If unable to find SNL
conventional axillary dissection level I and II
Lumpectomy, axillary LND pain score and Morbidity
Post op care if no morbidity
4-8PACU → 2 d hospitalization
PACU–> Home
Lumpectomy, axillary LND pain score and Morbidity
Post op care if no morbidity
4-8PACU → 2 d hospitalization
PACU–> Home