The goal of the present paper was to investigate the usefulness of a standardized screening instrument, the MCH-FSD, for the early detection of feeding problems, based on parental report, to allow health professionals to objectively interpret and address these parentally-reported feeding problems at an early stage and relate them to the level of oral motor skills and use both to enable adequate treatment of feeding difficulties in these children.
Currently, feeding difficulties are explained using a bio-psychological-social model [21, 22]. Therefore, when analyzing feeding difficulties, it is imperative to measure not only the oral motor skills but also the parent’s perspective and therefore the psychological and social signals that might indicate feeding difficulties. Early detection and treatment in children with CL/P are important because of the risk for serious complications. Because of inadequate separation between the oral and nasal cavity during feeding [2, 13], excessive air intake and nasal regurgitation can occur [2], leading to an increased risk of choking while feeding[6, 14] and possibly to aspiration and pulmonary complications [15]. Subsequently, next to severe dehydration [23], feeding difficulties can result in impaired growth[14, 24, 25] and failure to thrive. As a result, this is causing stress, anxiety, and frustration in parents during the feeding process [2, 26–32]. It has been reported that feeding difficulties in early childhood can also negatively influence maternal attachment [33], mental well-being[34] and even social development [14, 35, 36]. Furthermore, feeding difficulties negatively influence the parent–child interaction, resulting in lagged cognitive development and reduced emotional well-being [2, 4, 12, 19, 26, 27, 37].
To measure feeding difficulties from the oral motor perspective a number of reliable and validated instruments have been developed [19], such as the OSF and the SOMA. To objectify parents’ experiences, the MCH-FS may be promising as a frontline screener for measuring such parentally reported feeding problems because it is very short and has strong psychometric properties [12]. The instrument contains a domain focusing on oral motor skills, which makes it comparable with the OSF and SOMA.
Regarding the prevalence of feeding difficulties measured by the MCH-FSD, we expected that children with CL/P would score higher, indicating more feeding problems, because facial clefts are known to influence the feeding process negatively [4–7]. However, the CL/P group showed significantly fewer feeding problems than the control group, though differences were small. A possible explanation is that parents of children with CL/P, confronted with their situation, are possibly adjusted regarding the present feeding difficulties. As such, we suspect that these parents have an alternate frame of reference. In turn, this knowledge possibly leads to a deflation in their MCH-FSD score, as compared to parents with healthy children. A similar effect was also observed for parents of children with Down’s syndrome[38] and children who were born prematurely [39]. This suggests that although functional eating problems may occur more, caregivers generally do not report them as being more problematic.
At question 1b, the item-analysis showed that there were significant differences between groups for items (1,2,3,5,13), where the CL/P group’s item scores were somewhat lower, in line with the result found at question 1a. Contrastingly, for item 11 which measures the parent’s perception of the child’s chewing and sucking ability, a higher score was observed, meaning that parents rate their CL/P child’s sucking and chewing skill to be lower than parents in the control group. An explanation for this is that the anatomical features of clefts inhibit the child from successfully creating suction because the oral cavity cannot be adequately separated from the nasal cavity during feeding [2, 13], which is also observed by parents. This result seems to confirm that parents can successfully detect these problems.
In this study, parentally reported feeding problems were compared to objective observations from a speech therapist on oral motor feeding skill. The main result was that MCH-FSD did not correlate with either the OSF or SOMA. The fact that no association between these constructs seems to exist, suggests that parents of children with more severe oral motor problems do not necessarily report more feeding problems. It also shows that the full impact of feeding problems cannot be assessed by exclusively focusing on objective measures of feeding problems, because these are not necessarily related to the perspective of caregivers.
Furthermore, a correlation between the OSF and SOMA-solids and SOMA cracker was found. This relationship was expected, considering the nature of the questions in both measuring instruments: while a high score in OSF indicates complete control of the skill “spoon feeding”, a low score on SOMA-solids and SOMA-cracker indicates normal functioning of oral motor skills. In fact, this observation can be used to confirm that CL/P children who are skilled at spoon feeding at an earlier age, also show oral skill with solid foods (e.g. fruit or cracker) at a later age. If this isn’t the case, then it might be a reason to invest in extra counselling on oral motor skills.
Finally, analyzing the results of different patient characteristics and their relation with feeding difficulties measured by MCH-FSD, OSF and SOMA, there is no significant relation. However, when just comparing cleft-severity with these variables, significant differences were observed: scores for the MCH-FSD were much lower for types 0 and 4, while the differences on the OSF and SOMA were very small.
Regarding limitations of this study, we must consider that the MCH-FSD scores that were obtained from the CL/P group were filled out in the presence of a researcher (in contrast to the control group questionnaires, which were filled out by parents alone). Furthermore, the item at which parents reported more problems also turned out to be unclear for the CL/P group because the item includes both sucking and chewing skills. These skills may be very different for children with CL/P. As many children were capable of chewing but not sucking, this resulted in varying answers based on the interpretation of the question.