What are the post-operative care instructions for a 29-day-old male on post-operative day 1 after a pyloromyotomy?

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Post-Operative Care Note for 29-Day-Old Male After Pyloromyotomy

The most appropriate post-operative care for this 29-day-old male on post-operative day 1 after pyloromyotomy includes early oral feeding with clear liquids, multimodal pain management, and monitoring for complications such as persistent vomiting.

Vital Signs and Monitoring

  • Monitor respiratory rate, heart rate, blood pressure, oxygen saturation, and temperature q4h
  • Assess surgical site for signs of infection or dehiscence q8h
  • Document episodes of vomiting, including frequency, amount, and character
  • Monitor urine output to ensure adequate hydration

Feeding Protocol

  • Begin clear liquids as soon as patient is fully awake and alert
  • Start with small volumes (5-10 mL) every 2-3 hours
  • Gradually increase volume by 5-10 mL per feed if tolerated
  • Progress to full-strength formula after 24 hours if tolerating clear liquids
  • Advance to normal feeding regimen by 48 hours post-op if no persistent vomiting

Pain Management

  • Acetaminophen 10-15 mg/kg PO/PR q6h scheduled
  • Avoid opioids if possible to prevent ileus and respiratory depression
  • If additional analgesia needed, consider low-dose morphine (0.05 mg/kg IV) only for breakthrough pain

Fluid Management

  • Maintain IV fluids until tolerating adequate oral intake
  • Target near-zero fluid balance to avoid fluid overload 1
  • Discontinue IV fluids once oral intake reaches 2/3 of maintenance requirements
  • Monitor for signs of dehydration (dry mucous membranes, decreased urine output, weight loss)

Respiratory Care

  • Maintain head of bed elevated 30-45 degrees to reduce risk of aspiration
  • Provide supplemental oxygen if needed to maintain SpO2 >95%
  • Encourage gentle repositioning every 2 hours

Potential Complications to Monitor

  • Persistent vomiting (>5 days suggests incomplete pyloromyotomy) 2
  • Mucosal perforation (abdominal distention, fever, irritability) 2
  • Wound infection (erythema, purulent drainage, fever) 2, 3
  • Dehydration and electrolyte imbalances
  • Inadequate pain control

Laboratory Studies

  • Check electrolytes if persistent vomiting occurs
  • CBC with differential if fever develops or signs of infection present

Discharge Planning

  • Anticipate discharge when:
    • Tolerating full feeds without significant vomiting
    • Adequate pain control with oral medications
    • No signs of surgical complications
    • Parents demonstrate understanding of home care instructions
  • Expected length of stay: 24-48 hours if uncomplicated 4

Parent Education

  • Explain that some post-operative vomiting is normal and usually resolves within 24-72 hours
  • Teach proper feeding techniques (small, frequent feeds)
  • Review signs of complications requiring medical attention (persistent vomiting, fever, lethargy, decreased urine output)
  • Demonstrate wound care and bathing instructions
  • Schedule follow-up appointment in 1-2 weeks

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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