How to manage a patient in immediate post op after Hysteroscopic myomectomy
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hysteroscopic myomectomy postoperative management complications
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Immediate Post-Op Management After Hysteroscopic Myomectomy
Hysteroscopic myomectomy is typically a day-case procedure, but the immediate recovery period requires vigilant monitoring for several procedure-specific complications alongside routine post-anaesthetic care.
1. Recovery Room Monitoring (PACU)
Standard vital signs:
- Continuous pulse oximetry, heart rate, BP every 15 minutes for at least 1 hour
- Temperature monitoring (early fever within 24 hours is usually non-infectious - atelectasis, tissue trauma, haematoma)
- Respiratory rate and oxygen saturation - watch for pulmonary oedema from fluid overload
Urine output:
- Catheterise if not already done, or confirm voiding
- Monitor hourly urine output - oliguria may signal fluid shifts or haemodynamic compromise
2. Fluid Balance and Distension Media Monitoring (Highest Priority)
This is the most critical and unique post-operative concern for hysteroscopic procedures.
Intra-operative thresholds carried into immediate post-op:
| Fluid Deficit | Action |
|---|---|
| 750 mL | Warning sign - anaesthetist alerted |
| 1,000-1,500 mL (hypotonic media: glycine, sorbitol) | Terminate procedure; check electrolytes |
| 2,500 mL (isotonic/saline with bipolar) | Terminate; cardiac overload risk |
Post-op actions based on total deficit:
- Document the intra-operative fluid deficit in the handover
- Check serum electrolytes (Na+, K+), glucose, and haematocrit in recovery if deficit exceeded 1,000 mL of non-electrolyte solution or 1,500 mL of saline
- Obtain an ECG if hyponatraemia or cardiovascular symptoms are present
- Berek & Novak's Gynecology, p. 533
- Schwartz's Principles of Surgery, 11th ed., p. 1824
3. Recognition and Management of Distension Media Absorption Syndrome (TUR/TURP-like Syndrome)
Absorption of hypotonic distension media (glycine 1.5%, sorbitol 3%, sorbitol-mannitol) causes dilutional hyponatraemia and hypervolaemia - analogous to TURP syndrome. This can occur as late as several hours after the procedure ends.
Signs and symptoms to watch for:
- Confusion, agitation, restlessness, headache
- Nausea and vomiting
- Hypertension followed by hypotension
- Bradycardia, ECG changes
- Pulmonary oedema (dyspnoea, crepitations)
- Cerebral oedema (seizures, coma)
Management by severity:
| Serum Na+ | Clinical State | Treatment |
|---|---|---|
| >120 mEq/L, mild symptoms | Fluid restriction + IV furosemide (loop diuretic) | Watch and reassess |
| <120 mEq/L, severe symptoms | IV hypertonic saline (3% NaCl) carefully | ICU-level monitoring; avoid rapid correction (central pontine myelinolysis risk) |
| Cardiovascular collapse | Supportive: O2, vasopressors, ventilation as needed | Critical care |
Note: If bipolar instruments with normal saline were used, hyponatraemia is avoided but hypervolaemia alone can still cause cardiac overload at deficits >1,500 mL.
- Miller's Anesthesia, 10th ed., pp. 8477-8478
4. Haemorrhage Monitoring
- Assess vaginal bleeding - light spotting/discharge is normal
- Heavy bleeding with clots, tachycardia, hypotension - suspect uterine perforation or inadequate haemostasis
- Check haematocrit if bleeding appears significant
- Have IV access with at least 1 large-bore cannula
5. Uterine Perforation - Post-op Surveillance
Perforation risk is highest with G2 fibroids (deep intramural extension). The first sign intra-operatively is a rapid increase in fluid deficit.
Post-op red flags suggesting perforation:
- Disproportionate abdominal pain, especially if increasing
- Peritoneal signs (guarding, rigidity)
- Haemodynamic instability despite adequate fluid replacement
- Fever with tachycardia in the first few hours
Management:
- If perforation without electrode activation was identified intra-operatively and no bowel/bladder injury was found: observe and discharge if stable
- If electrode was active at time of perforation, or if bowel/bladder injury is suspected: proceed to laparoscopy/laparotomy to inspect for visceral injury
- Berek & Novak's Gynecology, p. 533
6. Pain Management
- Hysteroscopic myomectomy causes uterine cramping-type pain post-op (from uterine contractions helping expel fibroid fragments)
- First-line: NSAIDs (e.g., ibuprofen, mefenamic acid) - also reduce uterine bleeding
- Second-line: paracetamol ± weak opioids (e.g., tramadol) if NSAIDs contraindicated
- Severe or colicky pain may represent uterine distension from haematometra - consider ultrasound if suspected
7. Antiemetics and Nausea
- Nausea is common from general anaesthesia and from fluid shifts
- Ondansetron 4 mg IV is first-line
- Rule out hyponatraemia as a cause of persistent nausea or vomiting
8. Infection Prevention
- Routine prophylactic antibiotics are typically given pre-operatively (single-dose cefazolin or co-amoxiclav)
- Post-op antibiotics are not routinely required for uncomplicated cases
- Early fever (<24 hours post-op) is usually non-infectious (tissue trauma, haematoma, atelectasis)
- Fever after day 3-5 may indicate UTI; after day 4-6, consider VTE; after day 7+, consider surgical site infection
9. VTE Prophylaxis
- Hysteroscopic myomectomy is a minimally invasive procedure with low VTE risk
- Early mobilisation is the key intervention - encourage ambulation within 2-4 hours of recovery
- Compression stockings (TED) in recovery
- LMWH (e.g., enoxaparin) based on individual risk stratification (prolonged procedure, obesity, malignancy history)
10. Discharge Criteria (Day-Case)
The patient may be discharged when:
- Haemodynamically stable with no active bleeding
- Pain controlled on oral analgesia
- Voiding spontaneously
- Tolerating oral fluids
- Serum electrolytes checked and within acceptable limits (if applicable)
- No signs of peritonism or systemic infection
- Responsible adult at home; written discharge instructions given
Discharge instructions to include:
- Expect light vaginal bleeding/spotting for 1-2 weeks
- Pelvic rest for 2 weeks (no intercourse, no tampons)
- Return to ED if: heavy bleeding (soaking >1 pad/hour), severe abdominal pain, fever >38°C, dizziness/syncope
- Follow-up in 4-6 weeks (or earlier for G2 fibroid cases requiring repeat resection)
Summary Checklist
| Priority | Action |
|---|---|
| 1 | Document intra-op fluid deficit at handover |
| 2 | Monitor vitals and O2 saturation closely x1 hour |
| 3 | Check electrolytes if deficit >1,000 mL |
| 4 | Manage pain with NSAIDs + paracetamol |
| 5 | Watch for signs of perforation, bleeding, or fluid absorption |
| 6 | Early mobilisation; VTE prophylaxis |
| 7 | Discharge only when stable, eating, voiding |
Sources:
- Berek & Novak's Gynecology, Procedure-Specific Risks / Fluid Absorption and Electrolyte Imbalance sections, pp. 532-533
- Schwartz's Principles of Surgery, 11th ed., Operative Hysteroscopy, p. 1824
- Miller's Anesthesia, 10th ed., Treatment of TURP Syndrome, pp. 8477-8478
- Tintinalli's Emergency Medicine, Postoperative Gynecologic Complications, p. 3145
Create a post-op observation checklist template for hysteroscopic procedures
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