A CINAHL search for (rounds OR rounding) AND falls AND (cardiac OR coronary OR cardiovascular) did not retrieve any results.
A search for (rounds OR rounding) AND falls AND (surgical OR surgery OR postoperative) retrieved 13 references, including these studies in medical-surgical units:
Effects of rounding on patient satisfaction and patient safety on a medical-surgical unit. Woodward JL; Clinical Nurse Specialist: The Journal for Advanced Nursing Practice, 2009 Jul-Aug; 23 (4): 200-6.
Hourly Rounding: A Replication Study. Olrich, Todd; Kalman, Melanie; Nigolian, Cindy; MEDSURG Nursing, 2012 Jan-Feb; 21 (1): 23-36.
A search in PubMed found these two additional articles.
Krepper, Rebecca, et al. “Evaluation of a Standardized Hourly Rounding Process (SHaRP).” Journal for healthcare quality 36.2 (2014):62-69.
The first took place in two 32-bed cardiovascular surgery nursing units.
Ciccu Moore, Rita, et al. “Care and comfort rounds: improving standards.” Nursing management 20.9 (2014):18-23.
This study took place in an orthopaedic and surgical rehabilitation ward.
See also Does hourly or intentional rounding reduce the rate of accidental falls in acute care facilities?
See also Are inpatients with cardiac conditions or on diuretic therapy at risk for falls and is there any evidence of interventions to reduce falls in this population?
This blog entry references a couple of papers in the search results that include patients with cardiac conditions in their populations. You might be able to extrapolate strategies to your population.
Reviewed and updated 4/8/2014 ldt
Evidence Matters 