Ollivier Laccourreye

Prognostic Value of Tumor-Infiltrating CD4+ T-Cell Subpopulations in Head and Neck Cancers

Purpose: CD4+ T cells play a central role in initiating and maintaining anticancer immune responses. However, regulatory CD4+CD25+ T cells which express Foxp3 have also been shown to inhibit antitumor effector T cells. In view of these heterogeneous CD4+ T-cell populations, this study was designed to determine the prognostic value of various tumor-infiltrating CD4+ T-cell populations in head and neck squamous cell carcinoma. Experimental Design: Eighty-four newly diagnosed untreated patients with histologically proven primary head and neck squamous cell carcinoma were included in this study. Double or triple immunofluorescence staining was done to assess and quantify the activated CD4+CD69+ T cells, regulatory CD4+Foxp3+ T cells, and mixed CD4+CD25+ T cells comprising both activated and regulatory T cells. Results: On univariate analysis, high levels of tumor-infiltrating CD4+CD69+ T cells were correlated with both better locoregional control (P = 0.01) and longer survival (P = 0.01). Infiltration by regulatory Foxp3+CD4+ T cells was positively associated with a better locoregional control of the tumor. Multivariate analysis showed that the only significant prognostic factors related to locoregional control were T stage (P = 0.02) and CD4+Foxp3+ T-cell infiltration of the tumor (P = 0.02). In the Cox multivariate analysis, only two variables influenced overall survival probability: T stage (P = 0.036) and CD4+CD69+ T-cell infiltration (P = 0.017). Conclusion: This study shows that tumor-infiltrating activated CD4+CD69+ T cells are associated with a good prognosis in head and neck squamous cell carcinoma. In addition, regulatory Foxp3+CD4+ T cells are positively correlated with locoregional control may be through down-regulation of harmful inflammatory reaction, which could favor tumor progression.

Supracricoid laryngectomy with cricohyoidopexy: A partial laryngeal procedure for selected supraglottic and transglottic carcinomas

The partial horizontal supracricoid laryngectomy with cricohyoidopexy consists of resection of the whole thyroid cartilage and paraglottic space, as well as the epiglottis and the whole preepiglottic space. The cricoid cartilage, the hyoid bone, and at least one arytenoid cartilage are spared. Sixty‐eight patients with squamous cell carcinoma of the supraglottis who underwent this procedure during the period from 1974 through 1986 are presented. Conventional horizontal supraglottic laryngectomy was contraindicated in all cases. All but three patients (95.4%) recovered physiologic deglutition, and none required a permanent tra‐cheostomy. The 3‐year actuarial survival rate was 71.4%. No local recurrences were encountered. The indications for the procedure are carcinomas of the supraglottis that 1. involve the glottis and anterior commissure, 2. invade the ventricle, 3. present with a marked limitation of true vocal cord mobility (transglottic lesions), and 4. invade the thyroid cartilage. The procedure is presented as a useful alternative to radiation therapy, horizontal supraglottic laryngectomy, and total laryngectomy in select cases of supraglottic carcinoma.

Supracricoid laryngectomy with cricohyoidoepiglottopexy : a partial laryngeal procedure for glottic carcinoma

The partial horizontal supracricoid laryngectomy with cricohyoidoepiglottopexy consists of resection of the whole thyroid cartilage and paraglottic space. The cricoid cartilage, the hyoid bone, most of the epiglottis, and at least one arytenoid cartilage are conserved. Thirty-six patients with squamous cell carcinoma of the glottis who underwent this procedure from 1974 through 1986 are presented. All 36 recovered physiologic deglutition and phonation. None required a permanent tracheotomy. The 3-year actuarial survival rate was 86.5%. The local recurrence rate was 5.5%. The indications for the procedure are carcinomas of the glottis that 1) spread beyond the confines of the membranous portion of the true vocal cord or 2) present with limitation of true vocal cord mobility. The procedure is presented as a useful alternative to radiotherapy, partial vertical laryngectomy, and total laryngectomy in select cases of glottic carcinoma.

Total conservative parotidectomy for primary benign pleomorphic adenoma of the parotid gland: A 25-year experience with 229 patients

A 25‐year experience with total conservative parotidectomy for primary benign pleomorphic adenoma (PBPA) of the parotid gland in a consecutive series of 229 patients has been reviewed. This study focuses on survival, morbidity, PBPA recurrence, postoperative facial nerve dysfunction, and Freys syndrome. Surgical death was never encountered in this study. The overall incidence for postoperative hemorrhage, hematoma, seroma, skin necrosis, great auricular nerve schwannoma, and keloid scar was 1.7%, 6.1%, 4.8%, 0.9%, 15.7%, and 8.3%, respectively. Five‐, 10‐, 15‐, and 20‐year PBPA control actuarial rate was 99.6%. The overall incidence for temporary facial paresis and paralysis was 64.6% and 5.6%, respectively. Kaplan‐Meier actuarial analysis demonstrated that paresis recovery was noted until the eighteenth postoperative month. The overall incidence for permanent facial paresis and paralysis was 3.9% and 0%, respectively. None of the following variables—sex, age, PBPA size, PBPA location, PBPA contact with the facial nerve, inadvertent PBPA spillage, or surgeons experience— was statistically related to PBPA recurrence and facial nerve dysfunction. The overall incidence for Freys syndrome was 65.9%. Kaplan‐Meier actuarial analysis demonstrated the need for a minimal 5‐year follow‐up to assess Freys syndrome incidence. The mean age was statistically lower in patients presenting with Freys syndrome.

p53 Alterations Predict Tumor Response to Neoadjuvant Chemotherapy in Head and Neck Squamous Cell Carcinoma: A Prospective Series

PURPOSE The tumor suppressor gene p53 plays a crucial role in cell cycle control and apoptosis in response to DNA damages. p53 gene mutations and allelic losses at 17p are one of the most common genetic alterations in primary head and neck squamous cell carcinoma (HNSCC). Alterations of the p53 gene have been shown to contribute to carcinogenesis and drug resistance. PATIENTS AND METHODS In this prospective series, patients with HNSCC were treated with cisplatin-fluorouracil neoadjuvant chemotherapy. p53 status was characterized in 106 patients with HNSCC (p53 mutations, allelic losses at p53 locus, and plasma anti-p53 antibodies) to determine the existence of a relationship between p53 gene status and response to neoadjuvant chemotherapy. RESULTS Exons 4 to 9 of the p53 gene were analyzed, and mutations were found in 72 of 106 patients with HNSCC. p53 mutations were associated with loss of heterozygosity at chromosome 17p (P <.001). The prevalence of p53-mutated tumors was higher in the group of patients with nonresponse to neoadjuvant chemotherapy than in the group of responders (81% v 61%, respectively; P <.04). When compiling p53 mutations and anti-p53 antibodies in plasma, the correlation between p53 status and response to chemotherapy was significant (87% v 57%, respectively; P =.003). A multivariate analysis showed that p53 status is an independent predictive factor of response to chemotherapy. CONCLUSION This prospective study suggests that p53 status may be a useful indicator of response to neoadjuvant chemotherapy in HNSCC.

Supracricoid Partial Laryngectomy After Failed Laryngeal Radiation Therapy

Twelve patients managed with supracricoid partial laryngectomies(SCPLs) after failed laryngeal radiation therapy (RT) were evaluated. None of the recurrent tumors were amenable to vertical or horizontal partial laryngectomy. Results were analyzed for tracheostomy decannulation, oral alimentation, morbidity, local control, and survival. Major complications included perichondritis (2 patients), laryngeal stenosis (2 patients), and pneumonia from aspiration (1 patient). Mucocutaneous fistula and cricoarytenoid joint ankylosis were not encountered. Margins of resection were uninvolved in all cases. The Kaplan‐Meier 3‐year actuarial survival and local control estimate was 83.3%. Salvage total laryngectomy allowed for an overall 100% local control rate and a 75% laryngeal preservation rate.

Cricohyoidoepiglottopexy for Glottic Carcinoma with Fixation or Impaired Motion of the True Vocal Cord: 5-Year Oncologic Results with 112 Patients:

The medical charts and operative files of 112 patients (combined inception cohort) with well to moderately differentiated invasive glottic squamous cell carcinoma presenting fixation (22) or impaired motion (90) of the true vocal cord (TVC) consecutively treated with cricohyoidoepiglottopexy (CHEP) at our institutions from 1972 to 1989 were retrospectively reviewed. A minimum 5-year follow-up was always achieved. The Kaplan-Meier 5-year actuarial survival, local recurrence, nodal recurrence, distant metastasis, and metachronous second primary tumor estimate for the entire group of patients were 84.7%, 5.4%, 6.4%, 1.2%, and 10.8%, respectively. The 5-year absolute and cause-specific survival rates were 85.5% and 94.1% for patients with fixation of the TVC and 81.3% and 96% for patients with impaired motion of the TVC. The 5-year actuarial local control rates for patients with fixation or impaired motion of the TVC were 95.4% and 94.4%, respectively. Local recurrence was statistically more likely in patients with positive margins (p = .007). Nodal recurrence was statistically more likely in patients with local recurrence (p = .0005). Permanent tracheostomy related to postoperative laryngeal stenosis was requested in 2 patients. Aspiration-related completion total laryngectomy and/or permanent gastrostomy were never requested. Overall, local control and laryngeal preservation were achieved in 97.3%, and 95.5% of patients, respectively. At our institutions, the change from the conservative treatment modalities of radiotherapy and vertical partial laryngectomy to CHEP has brought about an increase in long-term survival, local control, and laryngeal preservation rates when compared to historical controls using vertical partial laryngectomy or radiotherapy.

Vertical partial laryngectomy : a critical analysis of local recurrence

The purpose of this study was to evaluate local recurrence following vertical partial laryngectomies in 416 patients with either T1N0M0 or T2N0M0 glottic carcinoma. Local failure was reported according to the T stage, the precise tumor location within each stage, the true vocal cord mobility, and the surgical procedure performed. No local recurrences were observed among 42 patients who underwent thyrotomy and cordectomy when the tumor was confined to the middle third of the mobile true vocal cord. Local failure occurred in 8 of 111 (7.2%) patients in whom hemilaryngectomy was performed for tumors confined to one mobile true vocal cord. There was a diverse group of lesions within each T stage that responded differently to the surgical approaches. The differences in the initial recurrence rates are discussed in terms of careful preoperative assessment and choice of surgical technique for early glottic carcinoma.

In situ lifetime, causes for replacement, and complications of the Provox voice prosthesis.

One hundred ProvoxTM voice prostheses consecutively inserted in 37 patients and replaced only when phonation was impaired or complications noted were analyzed for in situ lifetime, causes for replacement, and complications. The mean in situ lifetime was 311 days. Actuarial analysis(Kaplan‐Meier method) of the in situ lifetime revealed that 65.9%, 23.7%, and 16.4% of the voice prosthesis were still in situ by the 6th, 12th, and 18th postinsertion month. Cause for replacement was salivary leakage through the prosthesis valve, salivary leakage around the prosthesis, deterioration of the prosthesis, and excessive crusting resulting in increased airflow resistance in 33%, 27%, 24%, and 16% of cases, respectively. Complications included granulation tissue formation, cervical cellulitis, necrosis of the tracheoesophageal puncture, tracheostomal stenosis, and swallowing impairment in six, two, one, three, and one patient, respectively.

Complications and Functional Outcome after Supracricoid Partial Laryngectomy with Cricohyoidoepiglottopexy

We present a review of the postoperative course, complications, and functional outcome of 190 patients consecutively treated with supracricoid partial laryngectomy with cricohyoidoepiglottopexy. The average times until removal of the tracheostomy and nasogastric feeding tubes were 9 and 16 days, respectively. The postoperative mortality rate was 1%. Major complications included pneumonia from aspiration, cervical wound infection, symptomatic laryngocele, ruptured pexis, laryngeal chondroradionecrosis, and laryngeal stenosis in 8.5%, 4.2%, 3.1%, 1%, 0.5%, and 0.5% of the patients, respectively. Completion total laryngectomy, permanent gastrostomy, and permanent tracheostomy were requested in 0.5% of the patients. Normal swallowing without gastrostomy and respiration without tracheostomy was achieved by the first postoperative year in 98.4% (187/190) of the patients. This article presents a univariate analysis of the potential correlation between various variables and the duration of tracheostomy and the length of time the nasogastric feeding tubes were inserted, the mortality incidence and causes, the incidence and type of the various complications, and the duration of hospitalization. Comparison of our data with the reported functional results after vertical partial laryngectomy suggested that supracricoid partial laryngectomy with cricohyoidoepiglottopexy does not result in an increased rate of postoperative complications.