Background: Clinical demands motivated the use of the adapted form of The Macarthur Communicative Development Inventories (CDI'S) to assess the lexical development of cochlear implanted children (CI).
Aim: To present the application of Part I of the Protocol of Words and Sentences, adapted to the Brazilian Portuguese language, to follow lexical development.
Method: Two children, with ages of 2.3 and 3.9 years, implanted at 18 and 36 months respectively, were investigated.
Results: Linguistic elements that have a function and/or meaning that are predominantly syntactic are used later than elements that have a concrete meaning.
Conclusion: The inventory of words facilitated the follow up of the lexical development of the children in this study.