What is the appropriate management for a 49-year-old female with a postoperative right axillary wound (post‑lipoma excision), neutrophilic leukocytosis, orthopnea, right ear pain, tingling of the upper body, normal troponin, and no urinary symptoms?

Management of Postoperative Axillary Wound with Systemic Signs

This patient requires immediate surgical wound inspection and likely incision/drainage with empiric antibiotics given the marked leukocytosis (WBC 19,000 with 87.7% neutrophils) in the setting of a postoperative axillary wound. The combination of systemic inflammatory response and orthopnea demands urgent evaluation for both surgical site infection and potential cardiopulmonary complications.

Primary Concern: Surgical Site Infection

The clinical picture strongly suggests a surgical site infection (SSI) following lipoma excision. The IDSA guidelines are clear that:

• The most important therapy for an SSI is to open the incision, evacuate infected material, and continue dressing changes until healing by secondary intention 1

Antibiotic Indication Criteria

Antibiotics ARE indicated in this case because the patient meets high-risk criteria 1:

• WBC count >12,000 cells/µL (patient has 19,000)
• Neutrophilic predominance (87.7%) indicates bacterial infection
• Systemic symptoms present (orthopnea, upper body symptoms)

Empiric antibiotic selection for clean surgical site (lipoma excision):

• Since this was a clean procedure not involving intestinal/genital tracts, coverage should target S. aureus and streptococcal species 1
• Consider anti-staphylococcal coverage (e.g., cefazolin or vancomycin if MRSA risk factors present)
• Duration: 24-48 hours minimum, reassess based on clinical response 1

Critical Red Flags to Exclude

Immediately assess for necrotizing soft tissue infection (NSTI):

• Although rare after lipoma excision, NSTI can occur 2
• Look for: severe pain out of proportion, skin changes (bullae, crepitus), rapid progression, systemic toxicity
• If suspected: prompt surgical consultation for debridement and broad-spectrum antibiotics (vancomycin or linezolid PLUS piperacillin-tazobactam or carbapenem) 1

The tingling/numbness in upper body raises concern for:

• Nerve injury from initial surgery 3
• Septic emboli (though less likely with normal troponin)
• Compartment syndrome if significant swelling

Secondary Concern: Orthopnea Evaluation

The orthopnea (shortness of breath when lying down) requires cardiac and pulmonary assessment:

Differential for Orthopnea in This Context:

1. Pulmonary embolism - High suspicion given:

   • Recent surgery (axillary dissection increases DVT risk) 4
   • Immobility post-procedure
   • Guidelines recommend maintaining high suspicion for DVT/PE in postoperative patients 4

2. Sepsis-related pulmonary edema from severe infection

3. Cardiac complications - Though troponin is normal, this doesn't exclude:

   • Volume overload
   • Pericardial involvement (rare)

Immediate Actions for Orthopnea:

• Chest X-ray to evaluate for infiltrates, effusion, or pulmonary edema
• Consider CT pulmonary angiography if PE suspected clinically
• Lower extremity Doppler ultrasound to assess for DVT 4

Right Ear Pain

The ear pain in context of leukocytosis could represent:

• Referred pain from axillary infection
• Concurrent otitis media/externa
• Less likely: septic emboli

Management: Otoscopic examination; if normal, likely referred pain from primary infection site

Electrolyte Abnormalities

• Calculated osmolality 274 (low-normal to slightly low)
• Monocyte 1.38 (within normal range)
• These are non-specific but monitor for SIRS/sepsis

Algorithmic Approach

Step 1: Immediate wound inspection

• Remove dressing
• Assess for purulence, erythema >5cm, fluctuance, necrosis

Step 2: If wound infection confirmed:

• Open incision, drain, culture wound contents
• Start empiric antibiotics (anti-staphylococcal coverage)
• Daily dressing changes

Step 3: Evaluate orthopnea:

• Chest X-ray
• If abnormal respiratory exam or high PE suspicion → CT angiography
• Consider lower extremity Doppler

Step 4: If patient appears toxic or wound shows concerning features:

• Urgent surgical consultation
• Broaden antibiotics to cover NSTI
• Consider ICU-level monitoring

Step 5: Monitor response at 24-48 hours:

• Reassess wound
• Adjust antibiotics based on culture results
• Continue wound care until healing by secondary intention

Common Pitfalls to Avoid

• Don't delay wound opening - Drainage is more important than antibiotics alone 1
• Don't dismiss orthopnea - Postoperative PE can be fatal; maintain high suspicion 4
• Don't culture wound without clinical signs - But DO culture if opening the wound 4
• Don't miss NSTI - Early recognition is life-saving; when in doubt, consult surgery 2