1/14/2024 0 Comments Chin tuck swallowing method![]() Videofluoroscopy is the current gold-standard method for evaluating swallowing pathophysiology in people with dysphagia, using a standardized protocol. The head-turn-plus-chin-down maneuver achieved significant reductions in residue for thin and nectar-thick fluids, suggesting that this maneuver can be effective in reducing persistent vallecular residue with these consistencies. More than 80% of pre-swallow measures displayed NRRS ratios > 0.06, a threshold previously linked to increased risk of post-swallow aspiration. On average, pre-maneuver measures showed residue filling 56–73% of the valleculae, depending on stimulus consistency (NRRS scores: 0.2–0.4). Univariate analyses of variance were used to detect significant reductions in residue. Measures of % full and the Normalized Residue Ratio Scale (NRRS) were extracted. Pixel-based measures of residue in the vallecular space before and after the maneuver were made on still frame lateral images using ImageJ software. Participants were cued to perform a head-turn-plus-chin-down swallow, with the direction of head turn randomized. ![]() Data were collected from 26 participants who demonstrated persistent vallecular residue after an initial head neutral clearance swallow in videofluoroscopy. We investigated the impact of a novel maneuver on residue clearance by combining a head turn with the chin down posture. Cued or spontaneous swallows in the head neutral position do not always successfully clear residue. When swallowing efficiency is impaired, residue accumulates in the pharynx. ![]()
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