Salivary gland botulinum toxin injections for drooling in children with cerebral palsy and neurodevelopmental disability: a systematic review

I have been using this modality of treatment for many years. My clinical observation is that it is effective with few severe side effects.  I have been counting the decrease in the number of bibs  or  shirt changes  as well because it is hard to quantify the response. JR

Salivary gland botulinum toxin injections for drooling in children with cerebral palsy and neurodevelopmental disability: a systematic review

Aim  The aim of this paper was to systematically review the efficacy and safety of botulinum toxin (BoNT) injections to the salivary glands to treat drooling in children with cerebral palsy and neurodevelopmental disability.

Method  A systematic search of The Cochrane Central Register of Controlled Trials, PubMed, CINAHL (Cumulative Index to Nursing and Allied Health Literature), EMBASE, and the Physiotherapy Evidence Database (PEDro) was conducted (up to 1 October 2011). Data sources included published randomized controlled trials (RCTs) and prospective studies.

Results  Sixteen studies met inclusion criteria. Three outcome measures support the effectiveness of BoNT for drooling. One RCT found an almost 30% reduction in the impact of drooling on patients’ lives, as measured by the Drooling Impact Scale (mean difference −27.45; 95% confidence interval [CI] −35.28 to −19.62). There were sufficient data to pool results on one outcome measure, the Drooling Frequency and Severity Scale, which supports this result (mean difference −2.71; 95% CI −4.82 to −0.60; p<0 .001=".001" 2="2" 41="41" a="a" adverse="adverse" because="because" bibs="bibs" but="but" day.="day." early="early" events.="events." events="events" from="from" in="in" incidence="incidence" inconsistently="inconsistently" number="number" observed="observed" of="of" one="one" p="p" per="per" ranged="ranged" reduction="reduction" reported.="reported." required="required" significant="significant" terminated="terminated" the="the" there="there" to="to" trial="trial" was="was">

Interpretation  BoNT is an effective, temporary treatment for sialorrhoea in children with cerebral palsy. Benefits need to be weighed against the potential for serious adverse events. More studies are needed to address the safety of BoNT and to compare BoNT with other treatment options for drooling.

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