This study presents an investigation into disfluency patterns in spontaneous speech in Romance languages, particularly Brazilian Portuguese and Italian. The first part of the study, based on corpus-driven analyses, examines reference corpora classifications of disfluencies and proposes an alternative classification based on informational structure. The proposed disfluency categories are distinguished by whether or not they allow for the continuation of the informational unit being developed by the speaker at the moment of the disfluency. The second part of the study offers a phonetic analysis of one of these disfluency types (filled pauses) in Brazilian Portuguese and Italian. The comparison of filled pauses in BP and IT suggests that the phonological system of each language may influence how pauses are filled, favoring segments with specific phonetic properties such as nasality.