• Radiation Oncology Journal
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• 제3권1호
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• pp.51-58
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• 1985

외음부에서 발생하는 악성종양은 부인과 영역의 악성종양 중에서는 드물게 발생하는 것으로 알려져 있으며 치료에 있어서도 수술 또는 방사선치료 단독의 경우보다는 수술 후 보조적으로 방사선 치료를 시행하는 것이 더 효과적이고 치료율도 높은 것으로 알려져 있다. 이에 1971년 1월부터 1985년 4월 사이에 연세대학교 의과대학 치료방사선과에서 외음부 악성 종양으로 진단되어 방사선 치료를 받았던 15예에 대하여 후향성 분석을 시행한 바 다음과 같은 결과를 얻었기에 보고하는 바이다. 1. 15예의 외음부 종양 환자 중 4예는 수술요법 시행 후 보조적요법의 방사선 치료를 받았으며, 1예는 수술전 방사선 치료를 받았고, 나머지 10예는 근치적 목적의 방사선 치료를 받았다. 2. 방사선치료만을 시행한 군과 방사선치료 및 수술요법을 병행한 군과의 국소제어율을 비교하여 본 결과, 전 15예의 국소제어율은 $53\%(8/15)$였으며, 단지 방사선 치료만을 시행한 군에서는 $40\%$(4/10), 방사선 치료 및 수술요법을 병행한 군에서는 $80\%(4/5)$의 국소제어율을 보였다. 3. 치료 실패율은(국소적 잔존+국소재발 또는 원격전이) 단지 방사선 치료만을 시행한 군에서는 $70\%(7/10)$, 수술 후 방사선 치료를 시행한 군에서는$40\%(2/5)$의 성적을 보였으며, 치료실패 호발부위는 원발병소(외음부)였다.

• Radiation Oncology Journal
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• 제4권1호
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• pp.29-34
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• 1986

1971년 1월부터 1980년 12월까지 연세암센터에서 방사선치료를 받은 36예의 편도선암 환자군을 대상으로 후향성 분석을 통해 임상적 고찰 및 치료결과를 살펴 보았다. 환자의 $75\%$는 초진시 이미 진행된 병기에 속하였고, 청부 임파절 전이율은 $64\%$였다. 환자의 $19\%$에서는 양측성 경부 임파절 전이가 있었다. 3년 국소치유율은 $T_1$에서 $88\%$, $T_2$에서 $46\%$, $T_3$에서 $25\%$였고 $T_4$에서는 $11\%$에 불과했다. 경부 임파절 전이의 치유율은 $N_0\;와\;N_1$인 경우가 $87\%$였고 $N_2\;와\;N_3$에서 $16\%$로서 뚜렷한 차이를 보였다. 원발병소와 경부 임파절 전이의 정도가 심할수록 예후가 좋지 않았고 전 환자의 3년 국소치유율은 $42\%$였다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권12호
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• pp.7569-7576
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• 2013

Background: The purpose of this article is to present preliminary results of simultaneous boost irradiation radiotherapy for locally advanced nasopharyngeal carcinoma (NPC). Methods: Fifty-eight patients who underwent simultaneous boost irradiation radiotherapy for NPC in Cancer Center of Sun Yat-sen University between September 2004 and December 2009 were eligible. Acute and late toxicities were scored weekly according to the Radiation Therapy Oncology Group (RTOG) acute and late radiation morbidity scoring schemes. An especial focus was on evidence of post-radiation brain injury. Also quality of life was analysed according to the EORTC (European Organisation for Research and Treatment of Cancer) recommendations. Discrete variables were compared by ${\chi}^2$ test. The Kaplan-Meier method was used to calculate the survival rates and generate survival curves. Results: A total of 58 patients with a mean follow-up time of 36 months completed clinical trials.Fifty-seven patients (98.3) achieved complete remission in the primary sites and cervical lymph nodes, with only one patient (1.7%) showing partial remission.The most frequently observed acute toxicities during the concurrent chemoradiotherapy were mucositis and leucopenia. Four patients (6.9%) had RTOG grade 3 mucositis, whereas four patients (6.9%) had grade 3 leucopenia. No patient had grade 4 acute toxicity. Three (5.17%) of the patients exhibited injury to the brain on routine MRI examination, with a median observation of 32 months (range, 25-42months). All of them were RTOG grade 0. The 3-year overall, regional-free and distant metastasis-free survival rates were 85%, 94% and 91%, respectively. Conclusion: Simultaneous boost irradiation radiotherapy is feasible in patients with locally advanced nasopharyngeal carcinoma. The results showed excellent local control and overall survival, with no significant increase the incidence of radiation brain injury or the extent of damage. A larger population of patients and a longer follow-up period are needed to evaluate ultimate tumor control and late toxicity.

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.813-818
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• 2014

Aims: To describe our institutional experience with high dose rate (HDR) interstitial brachytherapy (IBT) compared with previously reported results on the low dose rate (LDR) practice for head and neck cancer. Materials and Methods: Eighty-four patients with oral cavity (n=70) or oropharyngeal cancer (n=14) were treated with 192Ir HDR-IBT. Seventy-eight patients had stage I or II tumour. The patients treated with IBT alone (n=42) received 39-42 Gy/10-14 fractions (median=40 Gy/10 fractions). With respect to the combination therapy group (n=42), prescription dose comprised of 12-18 Gy/3-6 fractions (median=15 Gy/5 fractions) for IBT and 40-50 Gy/20-25 fractions (median=50 Gy/25 fractions) for external radiotherapy. Brachytherapy was given as 2 fractions per day 6 hours apart with 4 Gy per fraction for monotherapy and 3 Gy per fraction for combination therapy. Results: Four patients were not evaluable in the analysis of outcome. The primary site relapse rates were 23.8% (10/42) and 68.4% (26/38) in patients treated with IBT alone and combination therapy, respectively (p<0.001). Salvage surgery was performed in 19 patients. The 5-year local control rate was estimated at 62% and the disease-free survival (DFS) rate at 52% for all patients. Local control with respect to T1 and T2 tumours was 84% and 42%, respectively. Conclusions: Our present series on HDR-IBT and the previous report on LDR-IBT for head and neck cancer demonstrated similar DFS rates at 5 years (52%). The rate of regional failure in node-negative patients was <20% in both of our series. HDR-IBT offers similar results to LDR-IBT for head and neck cancer.

• Radiation Oncology Journal
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• 제16권2호
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• pp.139-145
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• 1998

목적 : 성문상부암에서 근치적 방사선치료의 효율성을 알아보고자 하였다. 대상 및 방법 : 성문상부 편평상피세포암으로 확진되어 1990년 3월부터 1994년 12월까지 경상대학교병원 치료방사선과에서 근치적 방사선치료를 시행한 21예를 대상으로 분석을 시행하였다. 환자의 연령 분포는 52세부터 75세로 중앙값은 62세 이었다. 남자가 19예이었고 여자는 2예이었다. AJCC TNM 병기에 따른 환자의 분포는 병기 I이 4예, 병기 II가 7예, 병기 III이 3예, 병기 IV가 7예이었다. 추적조사기간의 중앙값은 36개월이었고 95%가 추적이 가능하였다. 결과 : 성문상부암 환자 21예의 전체 5년 생존율은 39.3%이었다. 병기에 따른 5년 생존율은 병기 I이 75.0%, 병기 II가 42.9%, 병기 III이 33.3%, 병기 IV이 28.6%이었다. 전체 5년 국소제어율은 52.0%이었고, 병기에 따른 국소제어율은 병기 I가 75.0%, 병기 II이 57.1%, 병기 III이 66.7%, 병기 IV가 28.6%이었다. 성문상부암의 치료 후 3예의 환자에서 이차 원발종양이 식도에 발생하였고, 진단 후 각기 5개월, 6개월, 5개월에 사망하였다. 결론 : 병기 I, II의 조기 성문상부암의 치료시 우선 근치적 방사선치료를 시행하고, 치료실패시 구제수술을 시행하는 것이 높은 국소제어율과 성대 보존율을 기대할 수 있는 효과적인 치료방법이라고 판단된다. 진행된 병기에서는 수술이 가능한 경우 근치적 수술과 방사선요법을 병행하고 수술이 불가능한 경우에만 근치적 방사선치료를 시행하는 것이 권장된다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권2호
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• pp.421-425
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• 2012

Cancer can be a major cause of poverty. This may be due either to the costs of treating and managing the illness as well as its impact upon people's ability to work. This is a concern that particularly affects countries that lack comprehensive social health insurance systems and other types of social safety nets. The ACTION study is a longitudinal cohort study of 10,000 hospital patients with a first time diagnosis of cancer. It aims to assess the impact of cancer on the economic circumstances of patients and their households, patients' quality of life, costs of treatment and survival. Patients will be followed throughout the first year after their cancer diagnosis, with interviews conducted at baseline (after diagnosis), three and 12 months. A cross-section of public and private hospitals as well as cancer centers across eight member countries of the Association of Southeast Asian Nations (ASEAN) will invite patients to participate. The primary outcome is incidence of financial catastrophe following treatment for cancer, defined as out-of-pocket health care expenditure at 12 months exceeding 30% of household income. Secondary outcomes include illness induced poverty, quality of life, psychological distress, economic hardship, survival and disease status. The findings can raise awareness of the extent of the cancer problem in South East Asia and its breadth in terms of its implications for households and the communities in which cancer patients live, identify priorities for further research and catalyze political action to put in place effective cancer control policies.

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.1129-1134
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• 2016

Vulva and Vaginal cancers are rare among all gynecological cancers worldwide, including Thailand, and typically affect women in later life. Persistent high risk human papillomavirus (HR-HPV) infection is one of several important causes of cancer development. In this study, we focused on HPV investigation and specific type distribution from Thai women with abnormality lesions and cancers of the vulva and Vaginal. A total of ninety paraffin-embedded samples of vulva and Vaginal abnormalities and cancer cells with histologically confirmed were collected from Thai women, who were diagnosed in 2003-2012 at the National Cancer Institute, Thailand. HPV DNA was detected and genotyped using polymerase chain reaction and enzyme immunoassay with GP5+/bio 6+ consensus specific primers and digoxigenin-labeled specific oligoprobes, respectively. The human ${\beta}$-globin gene was used as an internal control. Overall results represented that HPV frequency was 16/34 (47.1%) and 8/20 (40.0%) samples of vulva with cancer and abnormal cytology lesions, respectively, while, 3/5 (60%) and 16/33 (51.61%) samples of Vaginal cancer and abnormal cytology lesions, respectively, were HPV DNA positive. Single HPV type and multiple HPV type infection could be observed in both type of cancers and abnormal lesion samples in the different histological categorizes. HPV16 was the most frequent type in all cancers and abnormal cytology lesions, whereas HPV 18 was less frequent and could be detected as co-infection with other high risk HPV types. In addition, low risk types such as HPV 6, 11 and 70 could be detected in Vulva cancer and abnormal cytology lesion samples, whereas, all Vaginal cancer samples exhibited only high risk HPV types; HPV 16 and 31. In conclusion, from our results in this study we suggest that women with persistent high risk HPV type infection are at risk of developing vulva and Vaginal cancers and HPV 16 was observed at the highest frequent both of these, similar to the cervical cancer cases. Although the number of samples in this study was limited and might not represent the overall incidence and prevalence in Thai women, but the baseline data are of interest and suggest further study for primary cancer screening and/or developing the efficiency of prophylactic HPV vaccines in Thailand.

• 대한두경부종양학회지
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• 제16권2호
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• pp.167-171
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• 2000

Objectives: To compare the outcomes of treatment with a focus on the effectiveness of the two primary techniques of radiation used for treating parotid gland malignancies. Materials and Methods: A retrospective analysis of 70 patients with parotid gland cancer treated between 1981-1997. Radiation was delivered through an ipsilateral field of high energy electron and photon in 37 patients(52.9%). Two wedge paired photon was used to treat in 33 patients(47.1%). The median dose was 60 Gy, typically delivered at 1.8-2.0Gy per fraction. The median follow-up times for surviving patients was 60 months. Results: The overall and disease free 5 year survival rates were 71.6% and 69.5%, respectively. Wedge paired photon and photon-electron treatment disease tree 5 year survival rates were 61.1% and 80.5%, respectively. Overall local failure rate was 18.6%. Local failure rate of wedge paired photon technique was higher than that of mixed beam technique. Late complication rate was 37.1%, but most of them were mild grade. Conclusion: Techniques of radiation were associated with local control. The technique of using an ipsilateral field encompassing the parotid bed and treated with high energy electrons often mixed photons was effective with minimal severe late toxicity. To irradiate deep sited tumors, we consider 3-D conformal treatment plan for well encompassing the target volume.

• Radiation Oncology Journal
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• 제20권1호
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• pp.68-72
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• 2002

최근 들어 새로운 방사선치료법인 강도변조방사선치료가 많은 종류의 종양치료에 적용되어 치료에 따른 부작용을 줄이고 치료율을 향상시키려는 노력들이 이루어지고 있다. 특히 전립선암에서 강도변조방사선치료법을 적용하여 삼차원입체조형치료에 비해 향상된 선량분포와 이로 인한 주위 정상조직의 방사선량을 줄임으로써 더욱 많은 양의 방사선을 전립선에 투여할 수 있고 이로 인하여 치료율의 상승을 기대할 수 있게 되었다. 저자들은 강도변조방사선치료를 전립선암에 적용하였기에 이에 대한 문헌고찰과 함께 치료과정을 보고하고자 한다.

• Journal of Chest Surgery
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• 제47권5호
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• pp.458-464
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• 2014

Background: The effort to detect lung cancer in ever-earlier stages leads to the identification of an increasing number of patients without preoperative histological diagnosis. The aim of this study is to determine the prevalence and characteristics of benign lesions excised in the context of lung cancer surgery. Methods: We retrospectively analyzed data from 125 surgical procedures. We compared the preoperative clinical or cyto-histological diagnosis with the surgical-pathologic diagnosis in order to identify the percentage of benign lesions excised. Furthermore, other parameters were analyzed, such as age, sex, tumor size, the presence of calcification, and the type of surgery according to subgroup. Results: Of the 125 patients included in the study, 63 (50.4%) had a preoperative histological diagnosis of malignancy, corresponding to 56 cases (44.8%) of primary lung cancer and 7 cases (5.6%) of metastases. The 62 (49.6%) remaining cases without preoperative histological diagnosis were divided among 50 (40%) solitary pulmonary nodules and 12 (9.6%) pulmonary masses. According to the postoperative pathologic examination, we identified 12 (9.6%) benign lesions excised during lung cancer surgery. There were no statistically significant differences by subgroups with respect to age or sex. We found statistically significant evidence regarding the size and wedge resection as the surgical technique of choice for this type of benign lesion. Conclusion: Our study obtained results similar to those published by other groups regarding the resection of benign lesions in lung cancer surgery. This percentage could be a quality management index of indeterminate lung lesions.