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Difficulty: MediumPreoperative and Postoperative Care

A 68-year-old woman is evaluated on the surgical ward on postoperative day 4 following an elective right total knee arthroplasty. She reports new-onset shortness of breath and a mild, nonproductive cough that began this morning. Her medical history is significant for hypertension, heart failure with preserved ejection fraction, and osteoarthritis. Vital signs include a temperature of 37.9°C (100.2°F), blood pressure of 158/92 mmHg, heart rate of 104/min, respiratory rate of 22/min, and oxygen saturation of 91% on room air. Physical examination reveals prominent jugular venous distention when seated at a 45-degree angle. Pulmonary auscultation demonstrates bilateral crackles at the lung bases. Cardiac examination shows a regular tachycardia with a present S4 gallop, but no murmurs. The right knee surgical dressing is clean, and the incision shows mild erythema without purulent drainage, consistent with normal wound healing. Bilateral lower extremities exhibit 1+ pitting edema. A portable chest radiograph is obtained and demonstrates bilateral perihilar alveolar opacities, prominent pulmonary vasculature, and trace pleural effusions without focal consolidation.

Which of the following are the most appropriate next steps in the management of this patient? (Select 2 answers)

  1. Administer intravenous furosemideAnswer
  2. Provide supplemental oxygen therapy via nasal cannulaAnswer
  3. C
    Initiate empiric intravenous piperacillin-tazobactam
  4. D
    Administer intravenous methylprednisolone and inhaled ipratropium-albuterol
  5. E
    Remove surgical staples for bedside wound exploration and culture

Answer

The correct next steps in management are to administer intravenous furosemide and to provide supplemental oxygen therapy via nasal cannula.
This patient is presenting with acute decompensated heart failure (ADHF) characterized by severe volume overload. The surgical stress and perioperative fluid administration frequently precipitate ADHF in patients with a history of heart failure, particularly those with preserved ejection fraction (HFpEF). The diagnosis is strongly supported by the presence of jugular venous distention, bibasilar crackles, an S4 gallop (which is common in diastolic dysfunction), hypertension, and a chest radiograph showing perihilar alveolar opacities and pleural effusions. Management requires immediate preload reduction using an intravenous loop diuretic (such as furosemide) and supplemental oxygen therapy to address her acute hypoxia (oxygen saturation of 91%).

Step-by-Step Solution

1
Analyze the patient's vital signs and physical examination findings.
The patient has hypoxia, tachycardia, hypertension, low-grade fever, jugular venous distention, bibasilar crackles, an S4 gallop, and peripheral edema.
To identify the primary physiologic derangement causing the acute postoperative respiratory distress.
2
Correlate clinical findings with the patient's medical history and imaging results.
The history of heart failure with preserved ejection fraction, combined with physical signs of volume overload and a chest radiograph showing pulmonary edema, confirms the diagnosis of acute decompensated heart failure.
To differentiate cardiogenic pulmonary edema from other causes of postoperative shortness of breath, such as pneumonia, pulmonary embolism, or a COPD exacerbation.
3
Determine the most appropriate immediate therapeutic interventions for the confirmed diagnosis.
Intravenous loop diuretics for rapid preload reduction and supplemental oxygen to correct hypoxia are the indicated primary treatments.
To rapidly relieve pulmonary congestion, reduce cardiac workload, and improve systemic oxygen delivery in acute cardiogenic pulmonary edema.

Key Concept

Diagnosis and management of acute decompensated heart failure (volume overload) in the postoperative period.
Estimated Time:1m 30s
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Topics

Preoperative and Postoperative Care

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