The super-supraglottic swallow is an advanced variant of the supraglottic swallow designed to achieve broader and more forceful airway closure by incorporating a bearing-down (Valsalva) effort. It is primarily indicated for patients with significant arytenoid tilt reduction or vestibular folding dysfunction, most commonly following supraglottic or partial laryngectomy.

Background and Rationale

In a standard supraglottic swallow, the patient holds their breath to achieve true vocal fold adduction. The super-supraglottic swallow adds a bearing-down effort (similar to straining) that tilts the arytenoids anteriorly and pulls the epiglottis over the laryngeal inlet more completely, engaging the false (vestibular) folds as a secondary barrier. This creates a two-layer protective mechanism rather than the single-fold closure of the standard technique.

The distinction matters clinically: patients who aspirate despite a correctly performed supraglottic swallow — typically those with incomplete vestibular closure after partial laryngectomy — may benefit from the additional closure force that the super-supraglottic variant provides.

Physiological Mechanism

Bearing down increases intraglottic and supraglottic pressure, which:

1. Drives the arytenoids forward toward the base of the epiglottis
2. Promotes false vocal fold adduction
3. Increases contact pressure at the aryepiglottic folds
4. Compresses the laryngeal vestibule from above

The result is that even if the true vocal folds are surgically altered or neurologically impaired, the vestibular level provides supplementary sealing during the swallow.

Evidence Base

• Logemann (1983) first described the manoeuvre in the context of post-surgical laryngeal dysfunction and noted endoscopic evidence of enhanced closure.
• Martin et al. (1993) used manofluoroscopy to demonstrate that the super-supraglottic swallow produced significantly greater supraglottic pressure and reduced laryngeal penetration versus the standard supraglottic swallow in patients post-supraglottic laryngectomy.
• Lazarus et al. (1996) extended the evidence to neurological dysphagia, finding vestibular fold adduction improvements on FEES in a subset of stroke patients.
• A Cochrane-adjacent systematic review by Speyer et al. (2010) grouped airway protection manoeuvres and found moderate-quality evidence for reduction in penetration-aspiration scale scores, acknowledging heterogeneity across technique types.

The evidence base is strongest for post-surgical populations; for neurological dysphagia the technique is used clinically but requires further controlled trial data.

Patient Selection Criteria

Indicated for patients who:

• Have undergone supraglottic or partial laryngectomy and demonstrate persistent penetration or aspiration on VFSS/FEES despite standard supraglottic swallow
• Show incomplete arytenoid-epiglottis contact on endoscopic assessment
• Retain sufficient breath support and cognitive capacity for a more complex multi-step manoeuvre
• Can reliably perform a bearing-down effort on command (test this before prescribing)

Not first-line for neurological dysphagia — the standard supraglottic swallow should be trialled first.

Contraindications

• Cardiac disease (particularly recent MI, unstable angina, arrhythmia): Valsalva effort is a significant cardiac stressor. Formal medical clearance is mandatory before prescribing.
• Post-operative anastomosis sites: Bearing down raises intra-abdominal and intrathoracic pressure; consult the surgical team for fresh post-operative patients.
• Severe COPD or respiratory failure: Patients cannot sustain the required breath-hold with bearing-down effort.
• Moderate-severe cognitive impairment: The six-step sequence is too complex.
• Uncontrolled hypertension: Valsalva-type effort is contraindicated.

Step-by-Step Instructions

Important: This technique requires direct SLT supervision and should not be self-taught. The following is a guide for trained clinicians to use with suitable patients.

1. Take a deep breath in — more air than for a normal breath.
2. Hold your breath and bear down as if straining or lifting a heavy weight. Maintain the strain.
3. While holding and bearing down, take the food or liquid into your mouth.
4. Swallow — continue bearing down throughout the swallow.
5. Immediately after swallowing, cough firmly (while still bearing down if possible).
6. Swallow again to clear any residue.
7. Release the bearing-down effort and breathe out gently.
8. Then breathe normally.

Practice sequence: Train breath-hold and bearing-down effort separately before combining with food/liquid. Confirm glottic and supraglottic closure with FEES when possible before progressing to real meals.

Differences from the Standard Supraglottic Swallow

Hong Kong Clinical Context

In Hong Kong, this technique is most commonly encountered in SLT practice at oncology centres managing post-laryngectomy patients — primarily at Queen Mary Hospital (HKU/HKSH) and Prince of Wales Hospital (CUHK). Post-surgical patients are typically assessed with flexible endoscopic evaluation of swallowing (FEES) rather than VFSS given easier access in the ENT setting.

SLTs prescribing this technique in Hong Kong should document cardiac clearance in the clinical record and use a structured home practice log. Cantonese instruction is best delivered through demonstration and modelling rather than written cards alone, given the complexity of the technique.

Monitoring and Outcome

Re-assess with FEES or VFSS after four to six weeks of consistent practice (at minimum three sessions per week). Success criteria include absence of penetration on instrumental assessment with the technique in use, and patient ability to perform the full sequence without verbal cueing. If results are suboptimal, consider whether surgical voice restoration or other structural intervention is warranted alongside behavioural therapy.