Resting and Deglutition Pressures in the Pharyngo-Esophageal Region

Fyke, F. Earl; Code, Charles F.

doi:10.1016/s0016-5085(19)36057-3

Cited by 113 publications

(33 citation statements)

References 6 publications

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“…However, there are few quantitative studies of the propagation velocity of SP [3,6]. Fyke and Code used a single, small transducer to record the resting and deglutition pressures in the pharynx and upper esophagus.…”

Section: Discussionmentioning

confidence: 99%

“…Fyke and Code used a single, small transducer to record the resting and deglutition pressures in the pharynx and upper esophagus. They found that, with the initiation of swallowing, a high positive pressure developed at the soft palate and that a negative pressure occurred simultaneously at the pharyngoesophageal junction and in the upper esophagus [3]. A large, very transient gradient between the upper portion of the pharynx and esophagus was created, facilitating extremely rapid bolus transport through this region.…”

Section: Discussionmentioning

confidence: 99%

“…In 1955, Fyke and Code originally demonstrated that the orderly progression of the high-pressure wave through the pharynx to the esophagus during swallowing supports the postulate that a coordinated peristaltic contraction sweeps the bolus through this region [3]. Kahrilas et al found that propagation of pharyngeal contraction facilitates pharyngeal clearance and plays a role in bolus propulsion during swallowing.…”

Section: Introductionmentioning

confidence: 98%

“…High-resolution manometry (HRM) was recently used to evaluate pharyngeal swallowing using 36 circumferential sensors to measure pressure events [7][8][9][10]. The high number and circumferential nature of the sensors allowed more accurate pressure measurement in the asymmetrical pharynx than that obtained with classical manometry [1][2][3]6].…”

Section: Introductionmentioning

confidence: 99%

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Propagation Curve and Velocity of Swallowing Pressure in Healthy Young Adults

et al. 2015

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The objective of this study is to construct a propagation curve and determine propagation velocities in young healthy adults examined using a 2.64-mm-diameter high-resolution manometry catheter with 36 circumferential sensors; to explore data reproducibility; and to determine whether the swallowing pressure (SP) propagation velocity correlated with bolus volume. Repeated measures with subjects serving as their own controls. Thirty healthy subjects (average age 25.3 years) swallowed saliva and 2, 5, and 10 mL of cold water to determine the maximum SP from the soft palate to the cervical esophagus. The SP propagation curve was obtained by plotting the duration to reach each SP peak. The SP propagation velocity was calculated for each region. These parameters were examined according to bolus size and gender. The intra-class correlation coefficient for estimating the SP propagation curves was >0.61 (i.e., highly consistent). The propagation velocity was maximal at the meso-hypopharynx and minimal at the UES and cervical esophagus. The SP propagation curve was very reproducible within any subject. Neither the water volume (with the exception of 2 and 5 mL) nor gender exerted any apparent effect on velocity in any region. However, the velocity was quite variable at the cervical esophagus.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Propagation Curve and Velocity of Swallowing Pressure in Healthy Young Adults

et al. 2015

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“…6 The findings indicated that the upper part of the esophagus was closed off from the pharynx under resting conditions by tonic contraction of the cricopharyngeus sphinc¬ ter, confirming the belief that its "pinchcock" effect is a true sphincter. The sphincter was also found to contract on de¬ glutition and was coordinated with the peristaltic contraction of the pharynx above and the esophagus below.…”

mentioning

confidence: 57%

Bronchoesophagology<subtitle>Summaries of the Bibliographic Material Available in the Field of Otolaryngology for 1955</subtitle>

Fj¹

1957

AMA Arch Otolaryngol

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The Physiologic Background of Heartburn, Esophagitis and Cardiospasm

Ingelfinger¹

1960

Arch Intern Med

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From the viewpoint of physiologic organization, swallowing is an act which passes from the sublimely complex to the humbly inchoate. A swallow usually begins as a voluntary phenomenon which sets into motion an integrated sequence of performances and inhibitions delicately controlled by a medullary swallowing center. As the swallow moves through the oropharynx, groups of muscles relax and contract, vital respiratory orifices are occluded, and breathing is temporarily arrested, all within the three-tenths of a second or so it takes the bolus to go from the tip of the tongue to the bottom of the pharynx. The entire sequence of oropharyngeal swallowing is so dependable and so well organized centrally that removal of some of the parts, such as cutting some muscle groups, will not interrupt the integrated synergy performed by the remaining intact musculature.Once the swallow passes the cricopharyngeus muscles separating the pharynx from the esophagus, however, the involuntary and undisciplined motor functions of the gut take over. Although striated muscle continues to extend down the human esophagus for onethird to one-half of its length, the innerva¬ tion is autonomie with regulatory function vested chiefly in a myenteric plexus and the dorsal motor nucleus of the vagus. As compared with the oropharyngeal swallowing function, the organization of esophageal motility thus appears to be at a lower level, with less evidence of central control and greater susceptibility to disorganization by local defects or stimuli. Pharyngoesophageal JunctionThe characteristics of the two major divisions of the swallowing passage are re¬ flected in the degree of success achieved by modern techniques when applied to the study of normal and abnormal oropharyngeal and esophageal function. Modern tools permit more precise, more sensitive, and more rapid measurements of dynamic phenomena and hence have been most helpful in elucidating the rapid, precise, and well-ordered dynam¬ ics of swallowing in the oropharynx. The development of cineradiography, which records x-ray images on movie films, has permitted lucid analysis of the phases of oropharyngeal swallowing, and one of the earlier films on the subject1 shows with exquisite clarity how the piston of the tongue throws the bolus into the pharynx and how the epiglottis flips to cover the laryngeal additus. In addition, however, the film shows that the epiglottic lid may be performing merely an accessory function, for the swal¬ lowing act also pulls up the entire laryngealesophageal column so that the opening of the respiratory passages are tucked securely under the base of the tongue. The movement of the Adam's apple is, after all, not without its purpose.

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Resting and Deglutition Pressures in the Pharyngo-Esophageal Region

Cited by 113 publications

References 6 publications

Propagation Curve and Velocity of Swallowing Pressure in Healthy Young Adults

Propagation Curve and Velocity of Swallowing Pressure in Healthy Young Adults

Bronchoesophagology<subtitle>Summaries of the Bibliographic Material Available in the Field of Otolaryngology for 1955</subtitle>

The Physiologic Background of Heartburn, Esophagitis and Cardiospasm

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