DELAYED ORAL FEEDING IN PATIENTS OF SALVAGE LARYNGECTOMY AND ITS EFFECT ON DEVELOPMENT OF PHARYNGOCUTANEOUS FISTULA

Objective: Pharyngocutaneous fistula (PCF) is a complication of post radiotherapy total laryngectomy. Early post operative feeding is a risk factor for development of PCF. Delayed oral feeding (DOF) and inserting a nasogastric tube has been considered a safe practice among head and neck surgeons, and there is no general agreement on the timing of initiation of the oral intake. This study compared the effect of EOF and DOF on PCF formation. Study Design: Prospective case-controlled trial. Place and Duration of Study: Combined Military Hospital Rawalpindi, from Apr 2019 to Jul 2020. Methodology: Non-probability convenience sampling was done for both groups. The patients were not matched and were assigned to either EOF or DOF alternately. EOF was defined as feeding at seventh post operative day and DOF criterion was feeding on fourteenth post operative day. The primary outcome was development of PCF within the 30th post operative day. A total of 20 patients with prior radiotherapy for laryngeal cancer who presented with recurrence of carcinoma were included in the study. Same technique closure of neopharynx was done in all cases of laryngectomy. Results: Overall PCF frequency was 20% (4/20). In EOF group, 30% (3/10) of patients developed PCF whereas 10% (1/10) of patients in DOF developed PCF. However, the difference in outcome of two groups was not statistically significant. Conclusion: DOF in cases of Salvage total laryngectomy is a safe practice and it might help to reduce the frequency of pharyngocutaneous fistula.

Role of Thyroidectomy in Recurrent Laryngeal Carcinoma

Objective Management of recurrent laryngeal cancer presents a major challenge, and salvage laryngectomy is complicated by previous oncologic treatments. Thyroidectomy as part of salvage laryngectomy adds a nonnegligible degree of morbidity. The purpose of this study is to assess the rate of thyroid gland invasion in patients undergoing salvage laryngectomy to determine relevant predictive factors. Study Design Case series with chart review. Setting Department of Otorhinolaryngology, Head and Neck Surgery, Guy’s Hospital, London, United Kingdom. Methods A retrospective review of patients undergoing salvage laryngectomy between 2009 and 2019 was undertaken. Preoperative cross-sectional imaging and histopathological analysis were performed to define evidence and predictors of thyroid gland invasion (TGI). Results Fifty-one patients had salvage laryngectomy. Histological evidence of TGI was found in 4 patients (7.8%). No significant relationship was found between histological TGI and subsite of primary carcinoma, degree of differentiation, T staging, or radiological TGI. Preoperative computed tomography had a high negative predictive value for TGI. Conclusion Thyroidectomy should be carefully considered in patients undergoing salvage laryngectomy, and its extent should be defined on an individual basis. Total thyroidectomy should not routinely be performed in salvage laryngectomy or pharyngolaryngectomy in patients with no preoperative radiological evidence of TGI on cross-sectional imaging, unless there is intraoperative evidence of TGI.

Is routine neck dissection warranted at salvage laryngectomy?

Background There is controversy regarding management of the neck at salvage laryngectomy. The aim of this study was to perform an analysis to determine the incidence of occult node positivity in this group and analyse factors affecting it. Method A retrospective analysis of 171 patients who underwent salvage total laryngectomy between 2000 and 2015 for recurrent or residual disease following definitive non-surgical treatment and were clinico-radiologically node negative at the time salvage laryngectomy was carried out. Results A total of 171 patients with laryngeal or hypopharyngeal cancers underwent concurrent neck dissection at laryngectomy. There were 162 patients (94.7 per cent) who underwent bilateral neck dissection, and 9 patients (5.3 per cent) who underwent ipsilateral neck dissection. The occult lateral nodal metastasis rate was 10.5 per cent. Of various factors, initial node positive disease was the only factor predicting occult metastasis on univariable and multivariable analysis (p = 0.001). Conclusion Risk of occult metastasis is high in patients who have node positive disease before starting radiotherapy. This group should be offered elective neck dissection.

Salvage laryngectomy after primary radio- and radiochemotherapy

Background Recurrent and residual laryngeal cancer after organ-preserving radio- or radiochemotherapy is associated with a poor prognosis. Salvage surgery is the most important therapeutic option in these cases. Objective The study assessed rates of recurrence and residual tumor as well as survival and complication rates after salvage laryngectomy at the authors’ academic cancer center. Materials and methods A retrospective examination of all patients receiving laryngectomy between 2001 and 2019 due to tumor residuals or recurrence after primary radio- and radiochemotherapy was conducted. Results A total of 33 salvage procedures were performed. Defect reconstruction was performed by free flap surgery in 30.3% (n = 10) and regional flap surgery in 15.2% (n = 5) . One patient received regional flap surgery and free flap surgery simultaneously. Overall survival after 1, 2, and 5 years was 68.7, 47.9, and 24.2%, and disease-free survival was 81.6, 47.8, and 24.2%, respectively, with 48.5% (n = 16) postoperative tumor recurrences overall. Disease-free survival was significantly shorter for tumor extension into or onto the hypopharynx (p = 0.041). Postoperatively, 72.7% of patients developed a pharyngocutaneous fistula, of which 24.2% required surgical treatment. The hospital stay was 28.0 ± 16.1 days. Conclusion Salvage laryngectomy is associated with a high rate of treatable complications and high morbidity. Nevertheless, considering the advanced tumor stages treated, it allows for respectable oncological results.

Use of a sternocleidomastoid muscle flap to protect the carotid artery during laryngectomy

Objectives This paper describes a simple method of securing tissue coverage of the great vessels at the initial surgery by rotating the divided sternal heads of the sternocleidomastoid muscle, a routine step during laryngectomy, and approximating them to the prevertebral fascia. The paper presents an illustrated case example where this technique in a salvage laryngectomy repair resulted in a protected vascular axis following a salivary leak. Results Since utilising this technique, there has been a marked reduction in the requirement of subsequent flap procedures to protect vessels, and no episodes of threatened or actual carotid blowout.