Post-Anesthesia Visit: What to Assess and What to Ask

1. Airway and Respiratory

• Sore throat or hoarseness - occurs in 20-50% of patients after tracheal intubation, depending on laryngoscopy difficulty, intubation duration, and tube type (Barash, Cullen & Stoelting's Clinical Anesthesia, 9e)
• Stridor or signs of upper airway edema - especially after difficult or traumatic intubation; hematoma or edema can cause partial obstruction
• Dental damage - can occur during laryngoscopy or emergence; document any tooth or appliance injury and arrange dental referral
• Dysphagia - common after LMA use, oral airways, suctioning trauma, or any airway instrumentation
• Neck or jaw soreness - seen after facemask anesthetics

• Do you have a sore throat, hoarse voice, or difficulty swallowing?
• Did you notice any tooth damage or loose fillings?
• Is there any jaw or neck pain?
• Do you have any difficulty breathing, cough, or feel short of breath?

2. Neurological: Delirium and Cognitive Function

• Postoperative delirium - the most common surgical complication in older adults, occurring in 5-50% of elderly patients; it typically appears on postoperative days 1-3 but may already be evident in the PACU. Presents as fluctuating consciousness, disorientation, or agitation. Hypoactive subtype (quiet confusion) predominates and is often missed (Barash 9e).
• Postoperative cognitive dysfunction (POCD) - subtler decline in memory, concentration, and executive function; occurs at ~15% higher rate than controls even in younger patients, resolves within 3 months in most
• Residual neuromuscular blockade - patients may appear "recovered" by standard tests but report impaired swallowing, blurred vision, or perceived weakness
• Combativeness or confusion in the immediate postoperative period should prompt ruling out hypoxemia, hypoglycemia, hyponatremia, or inadequate analgesia before attributing it to emergence

• Are you feeling confused, disoriented, or having memory lapses?
• Do you feel mentally back to your baseline?
• Any unusual dreams, nightmares, or disturbing memories from the procedure?
• Do you feel muscle weakness, heaviness, or trouble swallowing?

3. Nerve and Positioning Injuries

• Peripheral nerve injury from positioning - can cause sensory or motor deficits; ulnar neuropathy is particularly common and may be related to subtle positioning issues
• Regional anesthesia nerve injury - rare but possible after neuraxial or peripheral nerve blocks
• Any new numbness, tingling, or weakness in a limb not explained by surgery
• Bruising or skin breakdown over pressure points (can indicate underlying nerve compression)

• Any numbness, tingling, or weakness in your arms, hands, legs, or feet?
• Do you have back pain or leg pain that feels different from surgical pain?
• Any new muscle weakness or difficulty with fine motor tasks?

4. Postdural Puncture Headache (after spinal/epidural)

• Positional headache (worse upright, better supine) - the hallmark; typically appears within 24-48 hours after spinal anesthesia
• More frequent after difficult blocks with multiple attempts or inadvertent dural puncture during epidural placement
• Neck stiffness, photophobia, tinnitus, or diplopia (rare but indicate large CSF leak)

• Do you have a headache that gets worse when you sit or stand up?
• Any neck stiffness, vision changes, or ringing in the ears?

5. Nausea, Vomiting, and GI Symptoms

• Postoperative nausea and vomiting (PONV) - one of the most common and distressing complications; higher risk in females, non-smokers, history of PONV/motion sickness, opioid use
• Prolonged ileus or abdominal distension (especially after abdominal procedures)
• Aspiration risk assessment if there was a documented airway event

• Have you been nauseated or vomiting since surgery?
• Were you able to tolerate fluids or food?
• Did anyone tell you there were any airway concerns during the procedure?

6. Pain and Analgesic Adequacy

• Adequacy of pain control - both at rest and with movement
• Side effects from opioids: pruritus, urinary retention, constipation, excessive sedation
• Efficacy of regional blocks: is the block wearing off appropriately? Any unexpected pain in the blocked region?
• Chronic pain risk - inadequately treated acute pain is a recognized risk factor for chronic post-surgical pain

• How is your pain being controlled? Is it adequate?
• Any itching from pain medications?
• Difficulty urinating?

7. Cardiovascular

• Hypertension or hypotension (documented in PACU or persistent after discharge)
• New arrhythmias
• Myocardial ischemia signs in high-risk patients (chest pain, dyspnea, new ECG changes)
• DVT risk: leg pain, swelling, especially after orthopedic or pelvic procedures

• Any chest pain, palpitations, or shortness of breath?
• Leg swelling or calf pain?

8. Temperature and Metabolic

• Fever - may indicate infection, malignant hyperthermia (MH) sequelae (rare but dangerous), or aspiration pneumonia
• Hypothermia (often present intraoperatively, should resolve)
• Malignant hyperthermia: if succinylcholine or volatile agents were used, watch for late fever, myoglobinuria, muscle pain, and elevated CK

• Have you had a fever since surgery?
• Any unusual muscle aches or dark-colored urine?

9. Awareness During Anesthesia

• Do you have any memories from during the surgery?
• Did you feel or hear anything during the procedure?
• Are you having nightmares or flashbacks?

10. Patient Satisfaction and Documentation

• Was the anesthetic experience as explained beforehand?
• Were their concerns addressed?
• Document any complications in the anesthesia record for quality assurance and medicolegal purposes

Quick Reference Summary Table

Extubation in the Patient with Aspiration Risk

Why Aspiration Risk Changes Everything

1. Gag and swallow reflexes - to prevent regurgitated material from entering the glottis
2. Cough reflex - to expel any material that does reach the larynx

Who Is "High Aspiration Risk"?

The Core Rule: Awake Extubation Only

• Breathing spontaneously
• Following commands
• 5-second sustained head lift (a reliable marker of adequate neuromuscular recovery)
• Intact gag reflex
• Airway clear of secretions and blood
• Adequate pain control
• Minimal end-expiratory volatile anesthetic concentration

• Tidal volume >6 mL/kg
• Vital capacity ≥10 mL/kg
• Peak negative inspiratory pressure > -20 cmH₂O
• TOF (train-of-four) ratio >0.9 (not just >0.7-0.8 - see below)

The Neuromuscular Blockade Problem

• Neostigmine alone cannot be relied on as an assurance of full reversal
• Peripheral nerve stimulation (quantitative TOF monitoring, not just clinical assessment) must be used
• Sugammadex is strongly preferred over neostigmine in aspiration-risk patients because it reliably and rapidly encapsulates rocuronium/vecuronium, giving a true TOF >0.9 before extubation

The clinical tests (head lift, hand grip, sustained tetany) become unreliable at intermediate depths of block and can appear adequate while pharyngeal muscles are still significantly impaired.

Step-by-Step Extubation Technique

Before extubating:

1. Ensure full neuromuscular reversal - quantitative TOF monitoring, target ratio ≥0.9; give sugammadex if any doubt
2. Suction the oropharynx and stomach - use a suction catheter to clear the oropharynx of secretions and blood; a nasogastric tube should be aspirated to decompress the stomach, then usually removed before extubation (an NG tube itself impairs lower esophageal sphincter competence and increases regurgitation risk if left in place)
3. Pre-oxygenate - give 100% O₂ for 3-5 minutes to maximize oxygen reserve; in case of unexpected airway loss post-extubation, apnea time before desaturation is critical
4. Have full re-intubation equipment ready and open - video laryngoscope, suction on, drugs drawn up (succinylcholine, propofol)
5. Confirm the patient is truly awake - following commands, eyes open, purposeful movement

Positioning:

• Left lateral decubitus (recovery position) + head-down (Trendelenburg) is recommended for aspiration-risk patients - this uses gravity to direct any regurgitated material away from the glottis and out of the mouth rather than toward the airway
• Alternatively, sitting up (semi-recumbent) is used in some protocols - reduces passive regurgitation but is less protective against active vomiting

The extubation itself:

1. Deflate the cuff fully
2. Extubate at end of inspiration or during active cough - when the patient coughs, glottic closure is triggered and positive expiratory pressure helps clear material from the upper airway
3. Do not extubate during expiration (passive phase) - this is when the cords are open and aspiration is more likely
4. Immediately apply oxygen via face mask
5. Keep suction immediately available at the lips

Post-Extubation Monitoring

• Continuous SpO₂ monitoring
• Watch for stridor, increased work of breathing, or desaturation
• Assess cough strength and ability to handle secretions
• Do not allow the patient to drink until assessed to be swallowing safely (especially after procedures near the airway)
• Be vigilant for silent aspiration - aspiration without the classic cough/desaturation pattern, especially in elderly or neurologically impaired patients

When Not to Extubate

• TOF ratio <0.9 after reversal
• Unable to follow commands or sustain head lift
• Active vomiting or retching
• Hemodynamic instability
• Hypoxemia on current ventilator settings that suggests pulmonary pathology (aspiration already occurred intraoperatively)
• Persistent airway edema (consider cuff leak test)
• Upper airway soiling with blood that cannot be cleared

Complications Table at Extubation (Barash 9e, Table 28-14)

Special Considerations