Neurophysiology of swallowing

Ertekin, Çumhur; Aydoğdu, İbrahim

doi:10.1016/s1388-2457(03)00237-2

Cited by 441 publications

(420 citation statements)

References 152 publications

Supporting

Mentioning

374

Contrasting

Unclassified

Order By: Relevance

“…UES closure occurs through passive elastic forces and contraction by the posterior muscle complex consisting of cricopharyngeus with contributions from inferior pharyngeal constrictor and proximal esophagus [2][3][4]. In its resting state, the UES remains closed and the CP tonically contracted, with constant brainstem-derived neurogenic input [5]. The UES needs to open during swallowing [6][7][8], belching [9] and vomiting [10].…”

Section: Introductionmentioning

confidence: 99%

“…The UES needs to open during swallowing [6][7][8], belching [9] and vomiting [10]. UES opening represents a complex interplay of sensorimotor neuromuscular activity, modulated via brainstem and spinal reflexes [5].…”

Section: Introductionmentioning

confidence: 99%

“…The muscles involved in UES opening are primarily the CP muscle relaxing [2,5] and suprahyoid, (sub-mental, SM) muscles contracting [6][7][8]11]. SM contraction causes sphincter distraction leading to low UES compliance, through which transmitted bolus forces open the sphincter [7].…”

Section: Introductionmentioning

confidence: 99%

“…One school of thought holds that tonic CP deactivation and UES opening occurs simultaneously due to brainstem-mediated neural inhibition originating in the CPG [3,5,14,15]. An alternate school of thought is that the suprahyoid muscles are primarily involved in UES opening and that traction within the suprahyoid muscle group leads to CP deactivation [1,7,16,17].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Modulation of Upper Esophageal Sphincter (UES) Relaxation and Opening During Volume Swallowing

et al. 2016

View full text Add to dashboard Cite

Background: UES opening occurs following cricopharyngeus deactivation and submental muscle contraction causing hyolaryngeal elevation and UES distraction. During impedance manometry, the inverse of impedance (admittance) can be used to measure bolus presence and infer UES opening. We hypothesized that the temporal relationship between UES relaxation, opening and hyolaryngeal elevation would change with increasing bolus volume. Methods: Simultaneous intramuscular cricopharyngeal (CP) electromyography (EMG), surface submental EMG (SM-EMG) and high-resolution impedance manometry (HRIM)were recorded in eight (aged 27±7 yrs, 5M) healthy volunteers while swallowing 0.9% Saline boluses of 2,5,10 and 20ml. Data were exported and analyzed via Matlab. Statistical analysis comprised of repeated measured one-way ANOVA and Pearson correlation. A P-value of < 0.05 was considered significant Results: Duration of CP deactivation increased at 20ml volume (P < 0.001). UES relaxation and opening increased with increasing bolus volume (P < 0.001), however overall duration of SM activation did not change. As UES opening occurs progressively earlier with increasing volumes, peak SM-EMG activity occurs relatively later (P < 0.001) and shifts from occurring before to following peak UES distention. Conclusions

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Modulation of Upper Esophageal Sphincter (UES) Relaxation and Opening During Volume Swallowing

et al. 2016

View full text Add to dashboard Cite

show abstract

“…It is mostly performed unconsciously and when initiated, controlled by a pattern of muscle activations [30]. The swallowing act is often partitioned into (1) oral preparation phase (food in the mouth), (2) pharyngeal phase (food bolus in the throat) and (3) esophageal phase (food propulsion towards the stomach) [31].…”

Section: Swallowing Recognitionmentioning

confidence: 99%

Recognition of dietary activity events using on-body sensors

Amft

Tröster

2008

Artificial Intelligence in Medicine

193

148

View full text Add to dashboard Cite

SummaryObjective: An imbalanced diet elevates health risks for many chronic diseases including obesity. Dietary monitoring could contribute vital information to lifestyle coaching and diet management, however, current monitoring solutions are not feasible for a long-term implementation. Towards automatic dietary monitoring, this work targets the continuous recognition of dietary activities using on-body sensors. Methods: An on-body sensing approach was chosen, based on three core activities during intake: arm movements, chewing and swallowing. In three independent evaluation studies the continuous recognition of activity events was investigated and the precision-recall performance analysed. An event recognition procedure was deployed, that addresses multiple challenges of continuous activity recognition, including the dynamic adaptability for variable-length activities and flexible deployment by supporting one to many independent classes. The approach uses a sensitive activity event search followed by a selective refinement of the detection using different information fusion schemes. The method is simple and modular in design and implementation. Results: The recognition procedure was successfully adapted to the investigated dietary activities. Four intake gesture categories from arm movements and two food groups from chewing cycle sounds were detected and identified with a recall of 80-90% and a precision of 50-64%. The detection of individual swallows resulted in 68% recall and 20% precision. Sample-accurate recognition rates were 79% for movements, 86% for chewing and 70% for swallowing. Conclusions: Body movements and chewing sounds can be accurately identified using on-body sensors, demonstrating the feasibility of on-body dietary monitoring. Further investigations are needed to improve the swallowing spotting performance. #

show abstract