The use of calcium gluconate in the treatment of hyperkalaemia.

Date First Published:
June 28, 2011
Last Updated:
August 11, 2011
Report by:
Jennifer Wright, Medical Student (University of Manchester)
Three-Part Question:
In [adults (>16 years) presenting to the emergency department with hyperkalaemia] is [intravenous calcium gluconate] effective at [preventing cardiac arrhythmias]?
Clinical Scenario:
A 65 year-old man is referred to the ED by his GP with a serum potassium concentration of 6.5mmol/L. Repeat tests confirm hyperkalaemia. You order an ECG which shows characteristic hyperkalaemic changes.
You consider prescribing calcium gluconate, but wonder what effect this will achieve.
Search Strategy:
Cochrane Library for Systematic Reviews: May 2011
MEDLINE using OVID interface: 1948 to June week 2
EMBASE: 1980 to 2011 week 24
Cumulative Index to Nursing and Allied Health Literature (CINAHL) Plus: 1947 to June 26th 2011
Search Details:
COCHRANE: hyperkalaemia, hyperkalemia, hyperkal*, hyperpotass*, potassium and hyperpotassaemia

MEDLINE and EMBASE: [exp Potassium/ OR exp Hyperkalemia/ OR hyperkalaemia.mp/ OR high potassium.mp/ OR hyperkal$.mp/ OR hyperpotass$.mp] AND [calcium gluconate.mp./ OR exp Calcium Gluconate/] Limit to (english language and humans and yr="2003 -Current")

CINAHL: (Hyperkalaemia/ OR Hyperkalemia/ OR Hyperkal*/ OR High potassium/ OR Potassium/ OR Hyperpotass*) AND (Calcium gluconate) Limit to (human and english language)
Outcome:
COCHRANE: 51 papers were identified, 1 of which was relevant - search strategy dated up to 2003.
MEDLINE: 24 papers found, none of which were relevant.
EMBASE: 258 papers found, none of which were relevant.
CINAHL: 4 papers found, none of which were relevant.
Relevant Paper(s):
Study Title Patient Group Study type (level of evidence) Outcomes Key results Study Weaknesses
Emergency interventions for hyperkalaemia Mahoney BA, Smith WA, Lo D, Tsoi K, Tonelli M, Clase C 2005 Canada RCTs, quasi-RCTs and randomised cross-over
studies.
Systematic review. 1a Serum potassium, ECG changes, arrhythmia, adverse effects of therapy and death. No relevant studies identified.
Author Commentary:
There is no clinical evidence for or against the use of intravenous calcium gluconate in the emergency management of hyperkalaemia.
Bottom Line:
As there is no clinical evidence available, local guidelines and advice should be followed.
References:
  1. Mahoney BA, Smith WA, Lo D, Tsoi K, Tonelli M, Clase C. Emergency interventions for hyperkalaemia