• 대한두경부종양학회지
• /
• 제20권2호
• /
• pp.172-176
• /
• 2004

Background and Objectives: Standard treatment of locally advanced laryngeal, hypopharyngeal, and some oropharyngeal cancers includes total laryngectomy. In an attempt to preserve the larynx through induction chemotherapy, we designed induction chemotherapy followed by definitive radiation in patients with potentially respectable head and neck cancer to determine whether organ preservation is feasible without apparent compromise of survival. Materials and Methods: The twenty-six patients diagnosed advanced head and neck squamous cell carcinoma, Stage III or IV (AJCC 2002) and performed organ preservation protocols in Ajou university hospital from 1994 to 2001 were included in this study. Results: Neoadjuvant chemotherapy showed an overall response rate of 84.6% and a complete remission (CR) rate was 59.1% following neoadjuvant chemotherapy and radiation. Seven of thirteen patients were able to preserve their larynges for more than two years by chemotherapy and radiation. There were no treatment related mortality after 2 cycles of induction chemotherapy. Conclusion: Although Organ preservation protocol through neoadjuvant chemotherapy and radiation need more controlled randomized study, it was considered alternative treatment modality in advanced head and neck cancer.

• Radiation Oncology Journal
• /
• 제25권3호
• /
• pp.151-159
• /
• 2007

목적: 국소 진행된 하인두암에서 치료 결과 및 생존율에 영향을 미치는 예후인자를 알아보고자 하였다. 대상 및 방법: 1985년 10월부터 2000년 12월까지 국소 진행된 하인두암 IV기로 근치적 치료를 받은 90명을 대상으로 후향적 분석을 실시하였다. 방사선 단독치료는 12명, 항암화학요법과 병용치료는 65명, 그리고 수술과 수술 후 방사선치료 시행은 13명이었다. 방사선 단독군의 경우 총 방사선 선량은 $59.0{\sim}88.2$ Gy (중앙값 70 Gy)이었다. 항암화학요법은 대부분 5-FU와 cisplatin을 병용하였고, 일부 환자에서는 clsplatin을 기본으로 pepleomycin 또는 vincristin 등을 병용 투여하였다. 추적관찰기간의 중앙값은 15개월이었다. 통계적 방법으로 생존율의 산출은 Kaplan-Meier 법을, 두군의 생존율간의 차이는 Log-rank test를, 그리고 다변량분석에는 Cox prportional hazard model을 각각 이용하였다. 결과: 전체 90명 환자의 3년 및 5년 생존율은 각각 26%, 17%였다. 2년 국소종양제어율은 방사선치료 단독군의 경우 33%, 방사선치료와 항암화학요법을 병용한 군은 32%, 수술 후 방사선치료군 81%로 통계적으로 유의한 차이를 보였다(p=0.006) 생존율에 영향을 미치는 예후인자에 대한 다요인 분석에서 T병기, 동시적 항암화학요법의 유무 및 국소 치료 후 완전 관해 여부가 통계적으로 유의하였다. 방사선치료와 항암화학요법을 병용한 군의 3년 및 5년 후두 보존율은 각각 26%, 22%였다. 이중 동시적 항암항암화학방사선요법이 시행된 11명 환자의 5년 후두 보존율은 52%로 선행화학요법이 시행된 54명의 16%에 비해 통계적으로 유의한 차이를 보였다(p=0.012). 결론: 국소 진행된 하인두암에서 근치적 수술과 방사선치료 병용요법이 방사선치료 단독요법이나 항암화학요법 병용방법에 비하여 더 좋은 결과를 보여주었다. 한편 방사선치료와 동시적 항암화학요법은 후두를 보존할 수 있는 유용한 치료법이 될 수 있음을 시사하였다. 향후 더 많은 환자를 대상으로 전향적 무작위 임상연구가 필요할 것으로 생각된다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권8호
• /
• pp.4847-4851
• /
• 2013

Objectives: To evaluate accuracy of FDG-PET CT in prediction of persistent disease in head and neck cancer cases and to determine prognostic value of metabolic tumor response. Materials and Methods: Between 2009 and 2011, 46 patients with squamous cell carcinoma of head and neck receiving PET-CT were treated with definitive radiotherapy, with or without chemotherapy. There were 29 nasopharyngeal, 11 hypopharyngeal, 3 oropharyngeal and 3 laryngeal cancer patients, with a median age of 50.5 years (range 16-84), 32 males and 14 females. All patients were evaluated with PET-CT median 3-5 months (2.4-9.4) after completion of radiotherapy. Results: After a median 20 months of follow up, complete metabolic response was observed in 63% of patients. Suspicious residual uptake was present in 10.9% and residual metabolic uptake in 26.0% of patients. The overall sensitivity, specificity, positive predictive value and negative predictive value of FDG-PET-CT for detection of residual disease was 91% and 81%, 64% and 96% respectively. Two year LRC was 95% in complete responders while it was 34% in non-complete responders. Conclusions: FDG PET CT is a valuable tool for assessment of treatment response, especially in patients at high risk of local recurrence, and also as an indicator of prognosis. Definitely more precise criteria are required for assessment of response, there being no clear cut uptake value indicating residual disease. Futhermore, repair processes of normal tissue may consume glucose which appear as increased uptake in control FDG PET CT.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권22호
• /
• pp.9831-9834
• /
• 2014

Background: The prevalence of esophageal cancer (EC) with second primary cancers (SPC) is increasing worldwide. This study was aimed to understand the clinical features of EC patients with SPC in the Taiwanese population. Materials and Methods: Clinical and laboratory data for 180 EC patients with or without SPC were collected between January 2009 and December 2013. Information on treatment approaches, location of SPCs and ABO blood type were also collected and stratified. Results: The most common SPC in EC patients was hypopharyngeal cancer, followed by laryngeal cancer and hepatocellular carcinoma in our study. Malignancies of colon, prostate and lung were also found. There was a significant higher portion of blood type A in the EC patients with SPC compared with those without (42.4% vs 19.5%, P=0.006). Conclusions: The frequency and SPC site distribution and blood type A should be considered in clinical evaluation of EC patients with a high risk of developing SPC in the Taiwanese population.

• Radiation Oncology Journal
• /
• 제36권2호
• /
• pp.95-102
• /
• 2018

Purpose: To evaluate the prognostic value of $^{18}F$-fluorodeoxyglucose positron-emission tomography (FDG PET) with computed tomography (CT) before and during radiotherapy (RT) in patients with head and neck cancer. Methods: Twenty patients with primary head and neck squamous cell carcinoma were enrolled in this study, of whom 6 had oropharyngeal cancer, 10 had hypopharyngeal cancer, and 4 had laryngeal cancer. Fifteen patients received concurrent cisplatin and 2 received concurrent cetuximab chemotherapy. FDG PET/CT was performed before RT and in the 4th week of RT. The parameters of maximum standardized uptake value, metabolic tumor volume, and total lesion glycolysis (TLG) of the primary tumor were measured, and the prognostic significance of each was analyzed with the Cox proportional hazards model. Results: Higher TLG (>19.0) on FDG PET/CT during RT was a poor prognostic factor for overall survival (OS) (p = 0.001) and progression-free survival (PFS) (p = 0.007). In the multivariate analysis, TLG during RT as a continuous variable was significantly associated with OS and PFS rate (p = 0.023 and p = 0.016, respectively). Tumor response worse than partial remission at 1 month after RT was another independent prognostic factor for PFS (p = 0.024). Conclusions: Higher TLG of the primary tumor on FDG PET/CT during RT was a poor prognostic factor for OS and PFS in patients with head and neck cancer.

• Journal of Chest Surgery
• /
• 제27권2호
• /
• pp.140-147
• /
• 1994

Reconstruction of the pharynx and cervical esophagus presents a tremendous challenges to surgeons. Over the past 2 years[1990, Dec.-1993, Jun], the free jejunal graft has been performed in 17 cases in Korea Cancer Center Hospital.The indications of this procedures were almost malignant neoplasms involving neck and upper aero-digestive tract; Hypopharyngeal cancer[12 cases, including 2 recurrent cases], laryngeal cancer[2 cases], thyroid cancer[2 cases, including 1 recurrent case], cervical esophageal cancer[1 case]. There were fifteen men and two women, and the mean age was 59.6 years. The anastomosis site of jejunal artery were common carotid artery[16 cases] or external carotid artery[1 case] and that of jejunal vein were internal jegular [15 cases] or facial[1 case] and superior thyroid vein[1 case]. The length of jejunal graft was from 9 cm to 17 cm[mean 13 cm] and the mean ischemic time was 68 minutes. There was one hospital mortality which was irrelevant to procedures[variceal bleeding] and one graft failure[1/16]. Other postoperative complications were neck bleeding or hematoma[3 cases], abdominal wound infection or disruption[5 cases], anastomosis site leakage[1 case], pneumonia[2 cases], graft vein thrombosis[1 case], and food aspiration[1 case]. The function of conduit was excellent and ingestion of food was possible in nearly all cases. Postoperative adjuvant radiation therapy was also applicable without problem in 7 cases. During follow-up periods, the anastomosis site stenosis developed in four patients, and the tracheal stoma was narrowed in one case but easily overcome with dilation. In conclusion, we think that the free jejunal graft is one of the excellent reconstruction methods of upper digestive tract, especially after radical resection of malignant neoplasm in neck with a high success rate and low mortality and morbidity rate.

• 대한두경부종양학회지
• /
• 제11권2호
• /
• pp.167-172
• /
• 1995

Pharyngocutaneous fistula(PCF) is one of the complications following total laryngectomy in laryngeal and hypopharyngeal cancer. Fistula lead to delayed wound healing, more serious complications such as carotid blow-out, prolonged hospitalization, significant patient morbidity and occasional mortality. Identification of patients at high risk for fistula formation, appropriate preventive measures, and appropriate management are the head and neck surgeon's responsibility. So we analyzed the clinical data of pharyngocutaneous fistula which was developed after total laryngectomy. Following results were obtained: 1) Occurrence of PCF increases with salvage surgery compared to curative surgery. 2) Early detection and effective management of PCF are the key factors to decreasing the hospitalization period. 3) Constructing a pharyngostoma seems to be an ideal method of preventing dangerous complications and ultimately closing the fistula. 4) Simultaneous reconstruction is necessary in the high risk group.

• 대한두경부종양학회지
• /
• 제21권1호
• /
• pp.35-41
• /
• 2005

Wide vertical hemilaryngopharyngectomy with immediate glottic and pharyngeal reconstruction using a radial forearm free flap is reported in 1991 by Chantrain et al. This procedure was designed for the preservation of healthy hemilarynx and resection of pharynx with safe oncological margin in especially piriform sinus cancer or supraglottic cancer invading the hypopharynx. In the original paper, they used palmaris longus tendon for reconstruction of neoglottis. In other groups, they used rib cartilage instead of palmaris longus tendon. In this paper, we report two cases of piriform sinus cancer patients who treated with wide vertical hemilaryngectomy with radial forearm free flap reconstruction. In one case, the operation was performed as Chantrain et al described. But in another case, the ipsilateral forearm was impossible due to the positive Allen's test. So the contralateral forearm flap and rib cartilage graft was done. This reconstructive technique make large resection possible. As the dissection of thyroid cartilage and lateral displacement makes direct visualization and manipulation of piriform sinus lesions, sufficient resection margin in lateral and inferior pharyngeal wall cab be obtained.

• Archives of Plastic Surgery
• /
• 제36권5호
• /
• pp.611-616
• /
• 2009

Purpose: The rate of fistulas occuring followed by resection of oral cavity, oropharyngeal, hypopharyngeal, and laryngeal cancer are reported to be 9 ~ 23% according to various documents. Neglected treatment of the fistula can result in a setback in proper treatment with restrictions in oral intake leading to delayed return to daily life. Furthurmore, in severe cases, it may injure important vessels and adjacent structures of the neck area. The author reviewed previously reported cases of treatment methods for fistulas recurring after diverse head and neck operations and with sharing the treatment experiments of our patients, we tried to present a treatment algorism for different fistula types. Methods: Our study was based on retrograde analysis of 64 patients who were clinically diagnosed with fistula after operation for cancer of the head and neck from 1997 to 2008 at Severance Hospital. Their primary sites of cancer were 8 oral cavity, 22 oropharynx, 25 hypopharynx, and 9 larynx. The patients were aged 45 to 75 years and the male to female ratio was 11 to 1. The patient's operation records and progress notes were evaluated for determination of degree of fistula and treatment methods. Results: Most fistulas were clinically suspected after postoperative 5 days and symptoms noted for detection of the fistula were erythema, purulent discharge, edema, tenderness, and fluctuation. The fistula was definitely diagnosed at postoperative 2 weeks with barium test and treatment method ranging from conservative management to operative procedure were applied to each patients. Total 21 patients were managed with conservative protocol. In 15 cases, direct repair of the fistula was done and more stable repair of the fistula was possible with using of TachoComb$^{(R)}$. Pharyngostoma was performed in 14 patients. Among them, 4 patients healed spontaneously, 5 patients were taken direct closure, 4 patients were taken pectoralis major musculocutaneous flap, and one patient was taken esophageal transfer. The other 14 patients were taken 11 pectoralis major musculocutaneous flaps and 3 free flaps without pharyngostoma formation. Conclusion: Fistula is a troublesome complication resulting after resection of head and neck cancer. Early detection and adequate treatment according to the period and condition of the fistula may prevent further complications and reduce the pain of the patient.

• Radiation Oncology Journal
• /
• 제17권1호
• /
• pp.1-8
• /
• 1999

목적 : 실험적으로 p53 종양억제유전자는 세포의 방사선에 대한 반응을 조절하는 것으로 알려져 있는데, 임상에서 p53의 변화와 방사선치료 후의 예후와의 상호관련성은 아직 명확하게 규명되지 않은 상태이다. 이에 두경부종양환자에서 흔히 관찰되는 p53의 변화가 방사선치료결과에 어떤 영향을 미칠 수 있는지를 알아보고자 하였다. 재료 및 방법 : 두경부종양으로 진단되어 근치적 방사선치료를 받은 55명의 환자를 대상으로 임상결과를 후향적으로 분석하였다. 각 환자의 치료전 종양조직의 paraffin section을 human p53단백질에 대한 monoclonal antibody (D-07)로 면역조직화학염색하여 labeling Index (number of labelded nuclei/total number of counted nuclei x100)를 구하여, 임상결과와 연관지어 분석하였다. 결과 : 전체환자의 67.2$\%$에서 p53의 기능이상을 시사하는 과발현 소견을 보였다. 원발병소에 따른 과발현 빈도는 oral cavity, larynx, hypopharynx, nasopharynx순으로 각각 100$\%$, 76$\%$, 67$\%$, 67$\%$, 38$\%$로 나타났다. 흡연자가 비흡연자에 비해 유의하게 높은 과발현 빈도를 보였다 (78.6$\%$, 30.8$\%$). 원발병소, 병기 및 Karnofsky peformance status가 방사선치료에 대한 반응율과 유의한 연관을 보였으며, p53의 과발현여부는 치료반응율에 유의한 영향을 미치지 못하는 것으로 나타났다. 무병생존율 및 전체생존율에 영향을 미치는 인자는 원발병소와 병기였고, p53의 과발현여부는 유의한 연관을 보이지 못하였다. 결론 : 근치적 방사선치료를 받은 두경부종양 환자에서, 면역조직화학염색에 의한 p53의 과발현율은 원발병소, 병기 및 흡연여부와 유관하였으며, 과발현여부가 치료반응율 및 생존율에 유의한 영향을 미치지 못하였다.