Management of Acute Shivering During Therapeutic Paracentesis in Cancer Patients

Immediate Actions

The European Society of Cardiology recommends immediately stopping or slowing the drainage, applying external warming with heated blankets or forced-air warming devices, and administering intravenous meperidine 12.5-50 mg as the most effective pharmacological intervention for acute shivering 1, 2
Pause or significantly slow the rate of ascitic fluid drainage to prevent further rapid fluid shifts and temperature changes that trigger shivering 3, 4
Apply surface counterwarming immediately using forced-air warming devices or heated blankets, as these are the most validated non-pharmacological methods for shivering control 1, 2
Administer warmed intravenous saline and place the patient on a heating pad 3, 4

Meperidine 12.5-50 mg IV is the most potent anti-shivering medication with a duration of action of 2-4 hours 1, 2
Meperidine has unique anti-shivering properties superior to other analgesics, making it the preferred agent when pharmacological intervention is needed 1, 2
Important caveat: Meperidine has an active metabolite associated with neurotoxicity and decreases seizure threshold, so use cautiously in patients with renal impairment or seizure history 1, 2
Low-dose fentanyl (25-100 μg bolus) can be used if meperidine is contraindicated, though it has less potent anti-shivering effects 1, 2
Acetaminophen can be considered as an adjunct, particularly if there is concern about infection-related fever 1, 2
Magnesium sulfate (2-4 g IV) may provide additional anti-shivering benefit when combined with other agents 2

Monitor for signs of shock including tachypnea, hunched posture, pale mucous membranes, and inactivity for at least 30 minutes after the shivering episode 3, 4
If signs of shock persist >30 minutes despite warming and fluid resuscitation, this represents a serious complication requiring immediate medical intervention 3, 4

Initiate active warming before beginning paracentesis in patients at high risk for shivering (those with previous episodes, cachexia, or large-volume ascites) 1, 2
Consider prophylactic low-dose meperidine or fentanyl before starting drainage in patients with prior shivering episodes 1, 2
Control drainage rate to prevent rapid fluid shifts—avoid removing >5 liters in the first hour 5
For volumes >5 liters, ensure albumin replacement (8 g per liter removed) is administered to prevent post-paracentesis circulatory dysfunction, which can contribute to temperature dysregulation 5

Avoid using sedatives alone (propofol, midazolam) without addressing the underlying cause, as these have weaker anti-shivering properties and higher risk of hypotension compared to meperidine 1, 2
Do not assume infection is the cause without evidence—shivering during paracentesis is more commonly related to rapid fluid shifts, hypothermia, and pain rather than spontaneous bacterial peritonitis, which would present with fever and other systemic signs 6