Impact of the method and success of pharyngeal reconstruction on the outcome of treating laryngeal and hypopharyngeal cancers with pharyngolaryngectomy: A national analysis

Extent of thyroidectomy and paratracheal lymph node dissection in total pharyngolaryngectomy for pyriform sinus cancer, and recurrence, survival, and postoperative hypoparathyroidism: A multicenter retrospective study

BACKGROUND

Total pharyngolaryngectomy (TPL) is standard treatment for hypopharyngeal cancer. However, extensive thyroidectomy and paratracheal nodal dissection (PTND) can cause hypoparathyroidism. We sought to determine the optimum extent of resection.

METHODS

We analyzed the clinicopathological information of 161 pyriform sinus cancer patients undergoing TPL from 25 Japanese institutions. Rates of recurrence and risk factors for hypoparathyroidism, as well as incidence of pathological contralateral level VI nodal metastasis and stomal recurrence, were investigated.

RESULTS

The extent of thyroidectomy and nodal dissection were not independent risk factors for recurrence. Incidences of contralateral level VI nodal involvement and stomal recurrence were 1.8% and 1.2%, respectively. Patients undergoing hemithyroidectomy/ipsilateral PTND did not develop stomal recurrence and had the lowest incidence of hypoparathyroidism. Prognosis in patients without tracheostomy prior to hemithyroidectomy/ipsilateral PTND was comparable to that with more extensive resections.

CONCLUSIONS

Hemithyroidectomy/ipsilateral PTND may be sufficient for pyriform sinus cancer cases without tracheostomy.

Modified Adipofascial Internal Mammary Artery Perforator Flap for Secondary Esophagoplasty

Papillary thyroid carcinoma with esophageal invasion often requires simultaneous reconstruction after radical tumor resection. However, in a recurrent case, with the upper aerodigestive tract previously reconstructed by a free flap, the alternative option for secondary reconstruction still presents a great challenge for surgeons. Here, we describe a novel secondary cervical esophagoplasty technique using a modified adipofascial internal mammary artery perforator flap. The 2-month follow-up postoperatively showed satisfactory patency of the cervical esophagus. The modified adipofascial internal mammary artery perforator flap is a reliable and convenient technique, with better aesthetic results for secondary cervical esophageal reconstruction.

Oncological Analysis and Surgical Outcomes in Postcricoid Carcinoma: A 14 Years Retrospective Study

Background: Postcricoid carcinoma is a rare but aggressive type of hypopharyngeal carcinoma with poor prognosis and high mortality; thus, it is indispensable to investigate the surgical efficacy and multimodal strategies. Methods: This retrospective study included postcricoid carcinoma patients undergoing surgical resection from 2008 to 2022. Treatment methods and clinical characteristics were analyzed to evaluate prognostic factors for oncological outcomes. Results: Of 72 patients, 13 cases were in the I−II stage and 59 in the III−IV stage. The overall survival (OS) was 50.0%; the laryngeal function preservation rate was 69.4%. Univariate analysis found that high mortality was associated with low tumor differentiation, lymph node metastasis, neck recurrence, and smoke history via log-rank test (p < 0.05); postoperative radiotherapy (RT) remained positive in OS (p = 0.04). The multivariable model further revealed that lymph node metastasis was a dominant determinant after accounting for covariates (HR 1.75; 95% CI 0.85−3.59). The data also indicated that neoadjuvant chemotherapy (NAC) and tumor diameter ≤ 2 cm were causing lower rates of pharyngeal fistula and locoregional relapse. Conclusions: Surgeons should emphasize high-risk features and optimize individualized surgical procedures for postcricoid carcinoma patients. Combined with multimodal treatments, it is feasible to reconstruct laryngeal function and lessen postoperative morbidities in advanced patients.

Clinical outcomes following pharyngolaryngectomy reconstruction: a 20-year single-centre study

Background

Advanced malignant neoplasms of the larynx and hypopharynx pose many therapeutic challenges. Total pharyngolaryngectomy and total laryngectomy provide an opportunity to cure these tumours but are associated with significant morbidity. Reconstruction of the pharyngeal defect following total pharyngolaryngectomy demands careful consideration and remains an area of debate within surgical discussions.

Methods

This paper describes a systemic analysis of pharyngeal reconstruction following total pharyngolaryngectomy and total laryngectomy, leveraging data collected over a 20-year period at a large tertiary referral centre.

Results

Analysing 155 patients, the results show that circumferential pharyngeal defects and prior radiotherapy have a significant impact on surgical complications. In addition, free tissue transfer in larger pharyngeal defects showed lower rates of post-operative anastomosis leak and stricture.

Conclusion

Pharyngeal resection carries a substantial risk of post-operative complications, and free tissue transfer appears to be an effective means of reconstruction for circumferential defects.

The ideal flap for reconstruction of circumferential pharyngeal defects: A systematic review and meta-analysis of surgical outcomes

BACKGROUND

There is a lack of consensus regarding the superiority of the common free flaps for the reconstruction of circumferential pharyngeal defects.

METHODS

A systematic literature search was conducted to identify studies reporting the complications of circumferential pharyngeal reconstruction between 2005 and 2020. Anterolateral thigh free flaps (ALTFF), jejunal free flaps (JFF), and radial forearm free flaps (RFFF) were compared. Various complications were compared by meta-analysis. Primary endpoints were fistula and stricture rates.

RESULTS

Forty studies were included (2230 patients). Stricture rate was similarly low with tubed ALTFF (13.3%, n = 36/270) and JFF (13.2%, n = 176/1334). Fistula rate was the lowest with JFF (9.2%, n = 58/634). ALTFF was associated with the lowest rates of partial and complete flap failure (3.8%, n = 6/157, and 2.8%, n = 5/178), infection (2.8%, n = 3/106), donor site morbidity (3.9%, n = 5/130), and mortality (0%, n = 0/101) within 30 days. A meta-analysis demonstrated that there was no statistically significant difference in stricture and fistula rates between ALTFF and JFF. Moreover, JFF was associated with a significantly lower fistula rate than that of RFFF (p < 0.001). ALTFF was associated with a significantly lower infection rate than that of JFF (p = 0.013).

CONCLUSIONS

The data suggest the use of ALTFF for circumferential pharyngeal defects. In the absence of randomized, prospective data, the authors hope the results presented can be used as an evidence-based reference.

Partial pharyngolaryngectomy with infrahyoid flap: Our experience

AIM

We evaluated a cohort of advanced hypopharyngeal squamous cell carcinoma, treated with conservative surgery, reconstruction with infrahyoid flap and radio-chemotherapy.

METHODS

We used partial pharyngo-laryngectomy and radio-chemotherapy to treat fifty-seven patients with stage III-IV hypopharyngeal SCC from November 1994 to December 2011. Clinical examination and speech therapy evaluation were used for estimation of laryngeal function.

RESULTS

All patients received a partial pharyngo-laryngectomy. All patients underwent neck dissection; 56 patients received bilateral neck dissection. Reconstruction was achieved by infra-hyoid flap. Five-year overall and disease-specific survival rates were 54.4% and 61.4%, respectively. Successful laryngeal function preservation with complete five-year remission was achieved in 44% of the patients.

CONCLUSION

Selected even if advanced carcinomas of the hypopharynx maybe treated with partial pharyngo-laryngectomy with reconstruction with pedicled flap. Both oncological and functional results showed a good outcome.

Total laryngopharyngectomy with circumferential reconstruction: Helsinki institutional study

PURPOSE

Surgical complications after total laryngopharyngectomy (TLP) are common, reconstruction is challenging, and patients often lose their ability to swallow and speak. To evaluate these aspects, we analysed outcome after TLP.

METHODS

We reviewed all patients who underwent TLP and subsequent circumferential pharyngeal reconstruction through 2004-2017 at the Helsinki University Hospital.

RESULTS

For the 26 eligible patients, TLP was the primary treatment for 11 and salvage surgery for 15, followed by reconstruction with free flaps in 22 patients and pedicled flaps in 4. An early (≤ 30 days) pharyngocutaneous fistula developed in seven patients (27%; median time 13 days; range 6-26), and a late (> 30 days) fistula in five patients (19%; median time 370 days; range 46-785). In addition, ten patients (39%) developed an oesophageal stricture. Four patients (15%) resumed full oral feeding. A speech prosthesis was inserted for 15 patients (58%) and most of them could produce intelligible speech. We found acceptable survival figures for patients undergoing TLP both as a primary treatment and as salvage procedure: the overall survival at 1 year was 82% and 67%, and at 5 years 33% and 27%, respectively. Disease-specific survival at 1 year was 90% and 70%, and that at 5 years was 45% and 43%, respectively.

CONCLUSIONS

Despite fair survival, TLP carries a high risk for postoperative complications with limited functional outcome, thus necessitating cautious patient selection and surgical experience.

Secondary free tissue transfer in head and neck reconstruction

BACKGROUND

The incidence of head and neck cancer (H&N) continues to increase together with the need for reconstructive surgery. Head and Neck microsurgeons are likely to encounter challenging secondary free flap surgery on the background of failed primary flaps, radiotherapy treatment or recurrence. The aim of this study was to review our experience of treating such cases in a tertiary referral centre in the United Kingdom.

METHODS

We performed a retrospective analysis of all patients undergoing sequential free flap surgery for head and neck defects in our unit during 2010-2017. Parameters recorded included indication for surgery, type and sequence of reconstruction, recipient vessel use and post-operative complications.

RESULTS

We identified 17 patients who underwent 39 free tissue transfers for the reconstruction of head and neck defects (five transfers were performed at other units). The radial forearm and anterolateral thigh flaps were most commonly used. Almost a quarter of patients underwent three or more free flap reconstructive procedures. In over a third, the same vein and artery were used for subsequent anastomoses, and we used five vein grafts over 68 anastomoses. There were no flap failures recorded.

CONCLUSIONS

Secondary free flaps in the head and neck are required for a variety of aetiologies and can have success rates similar to those for primary free tissue transfers with minimal morbidity and mortality. Free tissue transfer is the best reconstructive option in H&N patients and should still be considered the first choice option in salvage cases until the patient's donor sites have been depleted.