Effect of blood transfusion on tumor recurrence and postoperative pharyngocutaneous fistula formation in patients subjected to total laryngectomy

Botulinum Neurotoxin A in the Treatment of Pharyngocutaneous Fistula after Salvage Surgery in Head and Neck Cancer Patients: Our Preliminary Results

Objective: To analyze the effect of intraparotid injection of botulinum neurotoxin A (BoNT-A) on salivary production and the course of pharyngocutaneous fistula (PCF) in post-radiation therapy salvage surgery. Methods: A total of 13 patients who had undergone total laryngectomy or pharyngolaryngectomy were treated with BoNT-A to both parotid glands, within three days from PCF onset. The salivary flow was evaluated using a subjective rating scale as the percentage of normal function from 0% (no saliva) to 100% (normal saliva flow), before injection, every day for 2 weeks, and once a week for three months. PCFs were monitored daily. Results: Spontaneous closure of PCF occurred in 7/13 (53.84%) cases 13.6 days (range: 7-18) after treatment; 6/13 (46.16%) patients needed revision surgery. Salivary flow significantly decreased in all patients seven days after injection (from 67.2% to 36.4%; p < 0.05). Patients who had undergone either conservative or surgical treatment did not differ in salivary flow before injection, whereas the mean percentages of salivary flow calculated at each time point after injection were different (p < 0.05). Conclusions: BoNT-A contributed to the closure of the fistula in most of our cases. The subjective perception of salivary flow predicted the closure of PCF. The mean time to closure may contribute to establishing the timing of PCF surgical treatment.

Pharyngocutaneous fistula after total laryngectomy: systematic review of risk factors

BACKGROUND

Pharyngocutaneous fistula (PCF) is the most common surgical complication after total laryngectomy. Controversy still remains regarding the multiple risk factors implicated. The purpose of this study was to evaluate the potential risk factors for PCF.

METHODS

The strategy for our literature survey included research in MEDLINE up to December 2013. The risk factors analyzed were age, sex, smoking habit, alcohol use, comorbidity, preoperative hemoglobin level, blood transfusion, preoperative tracheotomy, previous radiotherapy and chemoradiotherapy, primary tumor site, T classification, cartilage invasion, tumor grade, surgical margins, suture material, second layer of suture, reconstruction, tracheoesophageal prosthesis, and neck dissection.

RESULTS

The electronic search resulted in 311 studies from which 63 met the inclusion criteria.

CONCLUSION

Chronic obstructive pulmonary disease (COPD), previous hemoglobin <12.5g/dL, blood transfusion, previous radiotherapy or chemoradiotherapy, advanced primary tumors, supraglottic subsite, hypopharyngeal tumor site, positive surgical margins, and the performance of neck dissection were risk factors for PCF.

Pectoralis major myofascial flap in salvage laryngectomy

Objective:

The main purpose of this study was to evaluate the effect of the pectoralis major myofascial flap on pharyngocutaneous fistula formation and time to oral feeding.

Methods:

This retrospective study reviewed 155 total laryngectomies. Patients were divided into two main groups. Group 1 included 110 patients who were treated primarily by total laryngectomy and group 2 comprised 45 patients who were treated by salvage laryngectomy with or without a pectoralis major myofascial flap.

Results:

The use of a pectoralis major myofascial flap did not have a significant effect on pharyngocutaneous fistula formation in the salvage group (p = 0.376). When comparing the oral feeding day of patients with pharyngocutaneous fistula, a significant difference was observed between the salvage group with pectoralis major myofascial flap reinforcement and the salvage group without pectoralis major myofascial flap reinforcement (p = 0.004).

Discussion:

Our study demonstrated that pectoralis major myofascial flap reinforcement did not decrease the rate of pharyngocutaneous fistula formation. Instead, it prevented the formation of large fistulas that would require surgical management, and showed a similar time to oral feeding and length of hospital stay to primary laryngectomy.

Risk factors and survival outcomes for patients with anastomotic leakage after surgery for head and neck squamous cell carcinoma

Objectives

This study evaluated the risk factors for anastomotic leakage (AL) and survival outcomes in patients with head and neck squamous cell carcinoma (HNSCC).

Methods

Patients with HNSCC who underwent surgery carrying potential AL from 2003 through 2009 were included in this study. Univariate and multivariate analyses were performed and patient survival was calculated by the Kaplan-Meier method.

Results

Of 232 eligible patients, 25 (10.8%) developed AL. Univariate analyses revealed that primary tumor site, salvage surgery, perineural invasion, radiotherapy, chemotherapy, and blood transfusion were significantly associated with the occurrence of AL (P<0.05). Independent risk factors for AL were salvage surgery and blood transfusion (P<0.01). On univariate analysis, AL was significantly associated with overall (OS) and disease-free survivals (DFS; P<0.05) but not with decreased locoregional control (LRC) rate (P=0.07). The 5-year DFS rate was significantly different between the non-leakage and leakage groups (70.9% vs. 27.7%, P<0.001). Multivariate analysis showed, however, that AL was not an independent variable of LRC, DFS, or OS (P>0.1).

Conclusion

Patients who received salvage surgery and blood transfusion may require careful surveillance for development of AL, which has a tendency toward decreased survival.

Salvage laryngectomy and pharyngocutaneous fistulae after primary radiotherapy for head and neck cancer: a national survey from DAHANCA

OBJECTIVE

In 1998, the Danish Society for Head and Neck Oncology decided to conduct a nationwide survey at the five head and neck oncology centers with the aim of evaluating the surgical outcome of salvage laryngectomy after radiotherapy with special emphasis on identifying factors that could contribute to the development of pharyngocutaneous fistulae.

PATIENTS

A total of 472 consecutive patients undergoing postirradiation salvage laryngectomy in the period July 1, 1987-June 30, 1997 were recorded at the five head and neck oncology centers in Denmark. Age ranged from 36 to 84 years, median 63 years, 405 men and 67 women. Primary tumor site was glottic larynx (n = 242), supraglottic larynx (n = 149), other larynx (n = 45), pharynx (n = 27), and other (n = 9). All patients had received prior radiotherapy.

RESULTS

Median time between radiotherapy and laryngectomy was 10 months (range, 1-348 months). A total of 89 fistulae lasting at least 2 weeks were observed, corresponding to an overall average fistulae risk of 19%. The number of performed laryngectomies per year decreased linearly (from 58 to 37), whereas the annual number of fistulae increased slightly (from 7 to 11), which meant that the corresponding estimated fistulae risk increased significantly from 12% in 1987 to 30% in 1997. Other significant risk factors for fistulae in univariate analysis included younger patient age, primary advanced T and N stage, nonglottic primary site, resection of hyoid bone, high total radiation dose, and large radiation fields. Multiple logistic regression analysis of these parameters suggested that nonglottic tumor site, late laryngectomy period (1987-1992 vs 1993-1997), and advanced initial T stage were independent prognostic factors for fistulae risk. Surgical parameters like resection of thyroid/tongue base/trachea or radiotherapy parameters like overall treatment time or fractions per week did not influence fistulae risk.

CONCLUSIONS

The risk of fistulae is especially high in patients initially treated with radiotherapy for nonglottic advanced stage tumors. A significant decrease in the number of performed salvage laryngectomies over the 10 years was seen. Over the same time period, the annual number of fistulae remained almost constant. The resulting more than doubling of fistulae rate could thus in part be explained by less surgical routine.

Pharyngocutaneous fistula

The occurrence of pharyngocutaneous fistula after oncologic head and neck surgery is a serious complication. It is the most common complication after major hypopharyngeal and laryngeal ablative surgery. The cause and management guidelines are still controversial. Contributing risk factors of impaired wound healing should be recognized in preoperative planning. Perioperative technical issues and preventive postoperative care play a major role in the prevention of fistulae, limiting the severity of the fistula and minimizing secondary complications. Surgical salvage of cancers treated with organ preservation approaches is associated with higher rates of postoperative complications, particularly in cases in which mucosal membranes are transgressed and surgically closed. Patients who require surgical repair are best treated by the use of regional myocutaneous flaps or free tissue transfers. This subset of patients is likely best treated in regional centers of excellence with well developed multidisciplinary programs for ablative and reconstructive head and neck surgery.