Review Article

Speech and Swallowing Data in Individual Patients Who Underwent Glossectomy after Prosthetic Rehabilitation

Table 2

Speech, voice, and swallowing outcomes of the included studies.

AuthorSp Sw therapySpeech/voice testsSpeech/voice outcomesSw testsSw outcomesET

Lehman et al. [19]NRNRNRSubjective analysisImprovement to swallow saliva and semisolids2 weeks
Moore [20]YesSpontaneous speechImprovement spontaneous speech, resonance, voice qualityCine-MRI
subjective analysis
Sw of a variety of foods4 m
Leonard and Gillis [21]YesVowel intelligibilityImproved vowels from 48% to 64%Clinical evaluationSw of saliva improved4 m
Gillis and Leonard [22]YesVowels, consonants; acoustic analysis of vowels formantsImproved: vowels 48 to 64%/; consonant: 82 to 90% and F1, F2, F3Clinical evaluationSw semisolids improved6–8 m
Knowles et al. [23]YesSpontaneous speechImproved spontaneous speechSubjective analysisImprovement global SwIE
Ballard et al. [24]YesWord, sentence intelligibilityWord intelligibility: 56%
sentence intelligibility: 84%
VFImproved Sw soft foods
IE
Davis et al. [25]YesCVC plosives intelligibilityImprovement 20%: /t/ and /d/;
33%: /k/ and /g/
VF swallow liquidsReduction of pharyngeal transit, dry swallows, oral/ pharyngeal residues1 year
Izdebski et al. [26]YesConversational intelligibility and vowels and plosives acoustic analysisIntelligibility markedly improved.
Formants achieved partial transitions.
Restoration of high-frequency bursts
NRNRIE
Meyer Jr. et al. [27]YesSpontaneous speechWorsened of Speech Intelligibility
PAP interfered tongue residual movements
VF liquid and pasteIncrease Sw speed, pool reduced, no aspirationIE
Godoy et al. [28]YesSpontaneous speechArticulation with substitutions with approximations of target phonemesVFImproving bolus propulsion into the
pharynx, aspiration decreased to 5%
IE
Kaplan [15]NRNRNRClinical evaluationSw soft and solid foods
increasing the amount of food placed in the mouth
IE
Shimodaira et al. [29]NRSyllables, conversational speechSpeech from unintelligible to adequate syllables from 19% correct to 74%Clinical evaluation of oral transitOral transit time 72 to 27 seconds for thin, Sw of thick made possibleIE
Çötert and Aras [30]NRWordsVowel intelligibility from 41 to 57%; consonant from 71 to 84%.Clinical evaluationSaliva swallowed with little effort. Head in a vertical position1 m
Martins et al. [31]YesAcoustic analysis: vowels and automatic speechImproved articulation, increase in F1, F2, F3 decrease in jitter, shimmer, NHR, nasal resonance speech rateVF liquid and
thin paste
Reduction of pharyngeal residues and reduction laryngeal elevationIE
Goiato and Fernandes [32]YesSpontaneous speechImprovement in speech articulationClinical evaluationImproved
masticatory efficiency
IE
Pigno and Funk [16]NRSpontaneous speechFrom intelligible with careful listening to intelligible although noticeably differentSubjective analysisSw had worse PAP interfered adaptive swallowIE, 6 m
Penn et al. [33]NRNRNRSubjective analysisImprovement in Sw of solid foods2 y
Dhamankar et al. [34]YesNRThe patient did need a speech therapist
to increase the clarity of speech
Subjective analysisComfortable swallowingIE
Laaksonen et al. [35]YesAcoustic analysis of vowels
/i, I, Λ, u/ and sibilants /s, z, /
Vowels F1, F2 closer to preoperative level; moderate effect on /s, z/NRNR2 y
Bachher and Dholam [5]YesContinuous speech, acoustic analysis: “ee”, “kaap”, “keep”, “kuup”/phonetically balanced passageIncrease in habitual frequency, voice intensity; decrease in jitter
and shimmer and voice was more stable and better resonated
Sw questionnaire
based on dietary habits of Indians
Sw from liquids to semisolids6 m
12 y
Bhirangi et al. [36]NRFricative and palatal sounds intelligibilityFricative and palatal sounds improved audibly
Clinical evaluationLiquid diet to semisolids
without apparent aspiration
6 m
Sabouri et al. [37]NRSpontaneous speechImprovement in speech intelligibility, before it was unintelligibleClinical evaluationLiquids to pureed or blended foods with head in an upright position1 m
Okuno et al. [38]YesSpeech intelligibility scoresSpeech intelligibility: PAP 50% to 65% PAP + LAP 50% to 73%VF liquidImproved oral transit;
reduced oral residues; no penetration/aspiration
IE
Abdulhadi [39]YesSpontaneous speechImprovement in speech intelligibilitySubjective analysisEasy swallowingIE
Koyama et al. [40]NRNRNRVF (2.5, 5, 7.5 ml of gelatin)All could propel all three volumes of gelatinIE
Lauciello et al. [41]YesSpontaneous speech3 PG: speech intelligibility improved and 1 TG: unable function of speechClinical evaluationNasogastric tube to liquid or thin liquids1 m
Leonard and Gillis [18]NISpeech intelligibility, consonant scores and F2 vowelsImprovement: consonants 9–21%, F2: 8–21%: IF: 8–22%, better in TG patientNRNR6 m
Okayama et al. [42]YesNRNRSw of saliva and US tongue movementDuration of lingual movement decreased
38 m
Cantor et al. [43]NIWords /K, G/ intelligibilitySevere group: improved +15.8–36
Moderate group: worsened −1.6–10.6
NRNR2 weeks
Wheeler et al. [44]YesSpontaneous speechSpeech intelligibility improved: 6–18%VF liquids, thin paste, thick pasteOral and pharyngeal time reduced for all foods4–6 weeks
Robbins et al. [45]YesTarget sounds/rainbow passage/spontaneous speechImprovement in articulation: IE 4.5; after 6 m: 3.4Oral transit clinical analysis: thin, thickIE: 3.5/6 m: 2.2 aspiration reducedIE, 3 m,
6 m
Weber et al. [46]YesSpeech spontaneous scaleSpeech was good or fair: 7/18 (PAP), 10/18: (PAP + laryngeal suspension)Clinical and VF13/18 achieved oral alimentationNR
De Carvalho-Teles et al. [4]YesSpeech spontaneous scores and analysis of formants of vowelsSpeech spontaneous scores improved: 8.8 to 9.4. increase in F1, F2, F3 valuesNRNR9.3 m

Sp = speech; Sw = swallowing; ET = evaluation time; m = months; VF = videofluoroscopy; NR = not reported; F1 = First formant, F2 – Second formant; F3 = Third Formant; PAP = palatal augmentation prosthesis; TP = tongue prosthesis; TG = total glossectomy; PG = partial glossectomy.