Comparison Between Mushroom-Type and Balloon-
Type Gastrostomy Buttons
RA VIT RUANGTRAKOOL, M.D.*,
TAT HIN ONG, M.B., B.S.**
Affiliation : * Division of Paediatric Surgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University,
Bangkok 10700, Thailand.
** Department of Surgery, Royal Children's Hospital, Brisbane, Australia.
AbstractThe gastrostomy button has been improved rapidly over the last ten years. The gas-
trostomy button was divided into two groups. The first group had a mushroom tip and, in this
study, the Bard button represented this group. The other had a balloon as an internal stabiliser and
the Mic-key button represented this group. The authors retrospectively studied all buttons inserted
at the Royal Children's Hospital, Brisbane between 1988 and 1995. The average longevity of Bard
and Mic-key buttons were 378.82 and 259.62 days respectively. Valve incompetence was the
most common cause of removal of the Bard button (38% ), whereas, balloon rupture was the major
cause of removal of Mic-key button (44%). Each type of gastrostomy button had its own advan-
tages and disadvantages and these special characteristics will be discussed.
Keywords : Adult, Child, Stomach, Enteral Nutrition/Instrumentation, Enteral Nutrition/Adverse
Effects, Follow-up Studies, Gastrostomy, Human, Silicone Elastomers, Intubation,
Gastrointestinal
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