Prevalence of Taste and Smell Dysfunction in Coronavirus Disease 2019

Importance

Early diagnosis of coronavirus disease 2019 (COVID-19) may help control the diffusion of the disease into the population.

Objective

To investigate the presence of sinonasal manifestations at the onset of COVID-19 to achieve an earlier diagnosis.

Design, Setting, and Participants

This retrospective telephone survey study investigated patients diagnosed with COVID-19 from March 5 to March 23, 2020, who were hospitalized or discharged from a single referral center. Patients who were unable to answer (intubated, receiving noninvasive ventilation, or deceased) or unreachable by telephone were excluded. Of 359 consecutive patients, 204 fulfilled the inclusion criteria; 76 were unable to answer, 76 were unreachable by telephone, and 3 refused.

Exposures

Sinonasal manifestations reported before COVID-19 diagnosis were studied with a validated questionnaire: Italian Sino-Nasal Outcome Test 22 (I-SNOT-22). If reduction of taste and/or smell was documented by item 5 of the I-SNOT-22, further inquiries were made to score them separately on a scale from 0 to 5, with 0 indicating no problem and 5 indicating problem as bad as it can be.

Main Outcomes and Measures

The prevalence of sinonasal manifestations preceding COVID-19 diagnosis.

Results

Among the 204 patients enrolled (110 [53.9%] male; mean [SD] age, 52.6 [14.4] years), the median I-SNOT-22 total score was 21 (range, 0-73). I-SNOT-22 identified 116 patients (56.9%) with reduction of taste and/or smell, 113 (55.4%) with taste reduction (median score, 5; range, 2-5), and 85 (41.7%) with smell reduction (median score, 5; range, 1-5). Eighty-two patients (40.2%) reported both. Severe reduction of taste was present in 81 patients (39.7%), and severe reduction of smell was present in 72 patients (35.3%). Only 12 patients (14.8%) with severe taste reduction and 12 patients (16.7%) with severe smell reduction reported severe nasal obstruction. Severe reduction of taste and smell was more prevalent in female vs male patients (odds ratios, 3.16 [95% CI, 1.76-5.67] vs 2.58 [95% CI, 1.43-4.65]) and middle-aged vs younger patients (effect sizes, 0.50 [95% CI, 0.21-0.78] vs 0.85 [95% CI, 0.55-1.15]). No significant association was observed between smoking habits and severe reduction of taste (odds ratio, 0.95; 95% CI, 0.53-1.71) and/or smell (odds ratio, 0.65; 95% CI, 0.35-1.21).

Conclusions and Relevance

The findings of this telephone survey study suggest that reduction of taste and/or smell may be a frequent and early symptom of COVID-19. Nasal obstruction was not commonly present at the onset of the disease in this study. The general practitioner may play a pivotal role in identifying potential COVID-19 in patients at an early stage if taste and/or smell alterations manifest and in suggesting quarantine before confirmation or exclusion of the diagnosis.

A new lateral cervical approach for salvage total laryngo-pharyngectomy

Total laryngectomy with subtotal pharyngectomy is the standard treatment of persistent/recurrent laryngeal and/or pharyngeal cancer. Salvage surgery can be complicated by pharyngo-cutaneous fistula because of previous treatment. The aim of this paper was to verify the feasibility of salvage total laryngectomy with subtotal pharyngectomy with a minimally invasive technique through a lateral cervical approach using the same skin incision used for resection of primary, synchronous neck dissection and pharyngeal flap reconstruction. This approach allowed harvesting of the anterior-myocutaneous flap including skin, subcutaneous tissue, platysma, anterior jugular veins, sterno- and homohyoid muscle in order to preserve as much tissue not involved by the tumour as possible. This technique is feasible and safe; further studies should confirm its advantages in terms of reduction of complications.

Lateral cervical approach for supracricoid partial laryngectomy

INTRODUCTION

The supracricoid partial laryngectomy has been described for the treatment of T3 laryngeal glottic and supraglottic tumors as well as upfront and salvage surgery. Good oncological and functional outcomes are expected, while the post-operative rehabilitation can be quite difficult for the patient. Early and late complications can occur especially in salvage surgery. Neck dissection according to the T stage is often associated with the resection of the primary tumor.

OBJECTIVE

To verify the feasibility of a minimally invasive procedure for supracricoid partial laryngectomy by adopting the lateral cervical approach.

METHODS/RESULTS

A 61-year old man affected by a cT3N0 glottic cancer already treated 10years prior with radiotherapy for oropharyngeal cancer underwent supracricoid laryngectomy using the lateral approach. The key point of the procedure was a subfascial dissection with the harvesting of anterior cervical flap including skin, fat, platysma, fascia superficialis, anterior jugular veins, homo- and sterno-hyoid muscles.

CONCLUSION

Supracricoid laryngectomy by a lateral approach is feasible and safe; it allows to perform a simultaneous neck dissection and the removal of the entire laryngeal specimen preserving ample healthy tissue compared to the classic anterior approach.