Swallowing Function in Patients With Head and Neck Cancers

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-05-01

Study Completion Date

2023-03-15

Brief Summary

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Head and neck cancer (HNC) is the sixth most common cancer worldwide, accounting for 2.8% of all malignancies. The presence of tumor itself, as well as the treatment, can result in neuromuscular damage affecting any stage of the swallowing. Organ-sparing care has become more common in recent years, however, that this does not always imply functional preservation. Dysphagia and aspiration both can occur and can have complex causes. Normal swallowing has oral preparatory phase, pharyngeal phase, and the oesophageal phase, it is important to know what is the dysfunction and where. This study aim to evaluate the preoperative and postoperative swallowing function in patients with head neck cancer using electromyography (EMG) and video fluoroscopy.

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Detailed Description

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The process of swallowing includes the conscious effort to ingest food and a subconscious or reflex effort of bolus preparation. The preparation of the bolus is referred to as the preparatory phase, the transport of the bolus from the oral cavity and pharynx to the oesophagus as the transport phase and through the oesophagus as the oesophageal transport phase. The rhythm and pattern of the swallowing mechanism is controlled by a central pattern generator located in the medulla.

The tongue plays an important role in the preparatory phase by mixing the food and moving it towards the occlusal surface of the teeth. Sensory innervation across the oral mucosa and the tone of the facial muscles help in keeping the bolus within the oral cavity and in its manipulation. The soft palate approximates to the tongue to create a glossopalatal seal which prevents premature spillage in to the pharynx, while various movements of the mandible are imperative for the adequate grinding of the bolus. The tongue then contracts from anterior to posterior pushing the bolus back into the pharynx, the whole process taking about one second. This phase involves the Vth, VIIth and XIIth cranial nerves.

The pharyngeal phase is involuntary, with sensations travelling through the IXth and Xth cranial nerves and usually lasting one second. In this phase, the soft palate closes the nasopharynx, the larynx is elevated and closed, the pharyngeal constrictors contract and the cricopharynx relaxes. The true cords, the false cords, the epiglottis and the aryepiglottic folds constrict to form a barrier of several layers preventing aspiration.

The mechanism varies and there is no gold standard test that can accurately measure this dysfunction. Most patients are investigated only when it impairs the feeding and nasal feeding tubes are required. It is not know as to how much the function preserving conservative surgeries actually preserve the function and hence, the importance of this study.

Conditions

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Head Neck Cancer Oral Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Evaluation of swallowing function

Measurement of swallowing function using Surface Electromyography and video flouroscopy

Group Type EXPERIMENTAL

Surface Electromyography and Video fluoroscopy

Intervention Type DIAGNOSTIC_TEST

Surface EMG of three muscle groups (masseter, submental, and infrahyoid) and video fluoroscopy with Omnipaque

Interventions

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Surface Electromyography and Video fluoroscopy

Surface EMG of three muscle groups (masseter, submental, and infrahyoid) and video fluoroscopy with Omnipaque

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* All Histologically proven cases of primary head and neck cancers.
* Head and neck cancer from stage T1 to T4a, N0 to N3, M0.
* Karnofsky performance status more than 70

Exclusion Criteria

* Patients with neurological disease
* Pregnant and lactating women
* H/O any prior treatment such as Surgery, Chemotherapy, Radiotherapy Surgery for recurrent disease

Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No