• 제목/요약/키워드: Cancer Prognostic Prediction

검색결과 64건 처리시간 0.018초

귀밑샘 암종에서 생존 예측을 위한 임상병리 인자 분석 및 머신러닝 모델의 구축 (Clinico-pathologic Factors and Machine Learning Algorithm for Survival Prediction in Parotid Gland Cancer)

  • 곽승민;김세헌;최은창;임재열;고윤우;박영민
    • 대한두경부종양학회지
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    • 제38권1호
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    • pp.17-24
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    • 2022
  • Background/Objectives: This study analyzed the prognostic significance of clinico-pathologic factors including comprehensive nodal factors in parotid gland cancers (PGCs) patients and constructed a survival prediction model for PGCs patients using machine learning techniques. Materials & Methods: A total of 131 PGCs patients were enrolled in the study. Results: There were 19 cases (14.5%) of lymph nodes (LNs) at the lower neck level and 43 cases (32.8%) involved multiple level LNs metastases. There were 2 cases (1.5%) of metastases to the contralateral LNs. Intraparotid LNs metastasis was observed in 6 cases (4.6%) and extranodal extension (ENE) findings were observed in 35 cases (26.7%). Lymphovascular invasion (LVI) and perineural invasion findings were observed in 42 cases (32.1%) and 49 cases (37.4%), respectively. Machine learning prediction models were constructed using clinico-pathologic factors including comprehensive nodal factors and Decision Tree and Stacking model showed the highest accuracy at 74% and 70% for predicting patient's survival. Conclusion: Lower level LNs metastasis and LNR have important prognostic significance for predicting disease recurrence and survival in PGCs patients. These two factors were used as important features for constructing machine learning prediction model. Our machine learning model could predict PGCs patient's survival with a considerable level of accuracy.

임종 전 말기 암 환자의 임상 증상 및 징후의 변화 (Clinical Change of Terminally Ill Cancer Patients at the End-of-life Time)

  • 고수진;이경식;홍영선;유양숙;박혜자
    • Journal of Hospice and Palliative Care
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    • 제11권2호
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    • pp.99-105
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    • 2008
  • 목적: 본 연구에서는 호스피스 병동에 입원한 말기 암 환자들을 대상으로 임상적으로 보다 정확한 잔여 수명을 예측하고자 임종의 시기에 객관적으로 임상적 증상 및 징후들의 변화를 관찰하였다. 방법: 강남성모병원 호스피스센터를 방분한 말기 암 환자를 대상으로 입원 시부터 임종까지 말기에 흔히 나타나는 증상과 신체적 징후의 변화를 관찰하였다. 증상의 정도는 $0{\sim}3$점수화하였으며 신체적 징후는 있다 또는 없다로 구분하였다. 이밖에 활력증후와 통증 정도, 진통제 사용을 관찰하였다. 결과: 호흡곤란, 혼수의 증상은 입원 시와 비교해서 임종 $1{\sim}2$일 전에 악화되었다. 대상자의 활동 수행 능력은 임종 시간이 가까워질수록 점진적으로 감소하였고, 섭취량과 소변 배설량도 줄어들었다. 특히 임종 $1{\sim}2$2일 전부터 현저하게 혈압이 감소하였다. 임종 시점을 기준으로 시기에 따라 증상의 변화가 유의하게 나타난 임상 지표는 활동수행 능력, 수축기 혈압, 구강건조증, 식욕저하, 쇠약감, 변비, 황달, 부종, 욕창, 호흡곤란, 진정, 혼수, 청색증, 호흡이상, 가래 끓는 소리, 눈을 뒤로 젖힘 등이었다. 결론: 말기 암 환자에서 수축기 혈압의 감소, 호흡곤란, 진정, 혼수, 청색증, 호흡이상, 가래 끓는 소리, 눈을 뒤로 젖힘 등의 증상이 나타나면 임종이 임박했음을 예상하여 가족들과 환자가 준비할 수 있도록 해야 하며, 의료진도 임종에 관한 돌봄을 시행하도록 해야 한다.

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Charlson Comorbidity Index를 활용한 폐암수술환자의 건강결과 예측에 관한 연구 (Health Outcome Prediction Using the Charlson Comorbidity Index In Lung Cancer Patients)

  • 김세원;윤석준;경민호;윤영호;김영애;김은정;김경운
    • 보건행정학회지
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    • 제19권4호
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    • pp.18-32
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    • 2009
  • The goal of this study was to predict the health outcomes of lung cancer surgery based on the Charlson comorbidity index (CCI). An attempt was likewise made to assess the prognostic value of such data for predicting mortality, survival rate, and length of hospital stay. A medical-record review of 389 patients with non-small-cell lung cancer was performed. To evaluate the agreement, the kappa coefficient was tested. Logistic-regression analysis was also conducted within two years after the surgery to determine the association of CCI with death. Survival and multiple-regression analyses were used to evaluate the relationship between CCI and the hospital care outcomes within two-year survival after lung cancer surgery and the length of hospital stay. The results of the study showed that CCI is a valid prognostic indicator of two-year mortality and length of hospital stay, and that it shows the health outcomes, such as death, survival rate, and length of hospital stay, after the surgery, thus enabling the development and application of the methodology using a systematic and objective scale for the results.

Circulating DNA in Egyptian Women with Breast Cancer

  • Ibrahim, Iman Hassan;Kamel, Mahmoud M;Ghareeb, Mohamed
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권6호
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    • pp.2989-2993
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    • 2016
  • The commonest cancer in Egyptian females occurs in the breast cfDNA is a non-invasive marker for tumor detetion and prognostic assessment in many types of cancer including breast cancer. This study aimed to assess the role of cfDNA and its fragmentation pattern in breast cancer prognosis and treatment response. Forty female patients with malignant breast tumors and a comparable group of healthy blood donors were enrolled prospectively. cfDNA levels and fragmentation patterns were investigated after cfDNA extraction, gel electrophoresis and gel analysis. The percentage of breast cancer patients positive for cfDNA (92.5%) was significantly higher than that of controls (55%). Also, mean concentration of cfDNA was significantly higher than in the control group (P<0.05). Most Her-2 positive patients had long cfDNA fragments, this being significant as compared to Her-2 negative patients (P<0.05). Metastasis was also positively linked to significantly higher cfDNA (P<0.05) and the mean cfDNA integrity index was significantly higher in non-responders compared to treatment responders (P<0.05). In conclusion, both qualitative and quantitative aspects of cfDNA and its different fragments in breast cancer patients could be related to prognosis, metastasis and treatment response. Long cfDNA fragments could be particularly useful for prediction purposes.

Prognostic Significance of Annexin A1 Expression in Pancreatic Ductal Adenocarcinoma

  • Chen, Cong-Ying;Shen, Jia-Qing;Wang, Feng;Wan, Rong;Wang, Xing-Peng
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권9호
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    • pp.4707-4712
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    • 2012
  • Annexin A1 is a 37-kDa calcium- and phospholipid-binding protein of the annexin superfamily considered to play an important role in tumorigenesis. However, associations with clinicopathological features in pancreatic ductal adenocarcinoma (PDAC) cases have yet to be fully defined. We therefore investigated the prognostic value of annexin A1 protein as a PDAC biomarker in 83 tumor and matched non-cancerous tissues or normal pancreas tissues. Expression was analyzed using real-time RT-PCR, Western blotting and immunohistochemistry. In non-tumor tissue, myoepithelial cells showed no or weak expression of annexin A1 while expression was strong and sometimes even located in the nuclei of endothelial cells in tumor tissue. High expression was significantly associated with advanced stage (P <0.05) and a worse overall survival (P <0.05). These results provide new insights to better understand the role of annexin A1 in PDAC survival, and might be relevant to prediction of prognosis and development of more effective therapeutic strategies aimed at improving survival.

말기 암 환자에서 임상변수를 이용한 생존 기간 예측 (Prediction of Life Expectancy for Terminally Ill Cancer Patients Based on Clinical Parameters)

  • 염창환;최윤선;홍영선;박용규;이혜리
    • Journal of Hospice and Palliative Care
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    • 제5권2호
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    • pp.111-124
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    • 2002
  • 목적 : 의학의 발달로 인간의 생존 기간이 길어졌지만, 암 발생율과 사망율은 오히려 증가하고 있어 그로 인해 말기 암 환자는 계속 늘어나고 있는 실정이다. 말기 암 환자를 진료하는 데 있어서 환자의 생존 기간을 예측하는 것은 중요한 문제로 만약 환자의 생존 기간을 예측할 수 있다면 남은 시간에 따라 환자, 가족, 의료진은 치료의 선택에 큰 차이를 보일 것이다. 이에 저자 등은 말기 암 환자에서 사망 위험도를 높이는 예후 인자를 알아내고 이들 예후 인자의 개수에 따른 생존 기간을 예측하여 말기 암 환자의 진료에 도움이 되고자 하였다. 방법 : 2000년 7월 1일부터 2001년 8월 31일 사이에 국민건강보험공단 일산병원 가정의학과에 말기 암으로 입원한 환자 157명을 대상으로 입원당시 환자의 임상변수 31가지를 조사하였다. 그리고 환자의 의무기록과 조사된 환자의 신상기록을 가지고 2001년 10월 31일까지의 환자의 생존 여부를 확인하였다. Kaplan-Meier 방법과 로그순위 검정(log-rank test)을 이용하여 임상변수에 따른 생존 기간에 차이가 있는지를 알아보았다. Cox의 비례위험함수 모형(Cox's proportional hazard model)을 이용하여 임상변수 중 사망 위험도를 높이는 유의한 변수를 얻은 후 이를 예후 인자로 삼고, 이것을 와이블 비례위험함수 모형(Weibull proportional hazard function model)을 이용하여 예후 인자들의 유무에 따른 생존 기간의 평균, 중앙값 제 1사분위수 그리고 제 3사분위수를 계산하여 생존기간을 예측하였다. 결과 : 말기 암 환자 157명 중 성별은 남자가 79명(50.3%), 여자가 78명(49.7%)이었고, 평균 연령은 남자가 $65.1{\pm}13.0$세, 여자는 $64.3{\pm}13.7$세였다. 암의 종류를 보면 위암이 36명(22.9%)으로 제일 많았고, 폐암이 27명(17.2%), 대장암이 20명(12.7%) 순이었다. 의식변화, 식욕부진, 저혈압, 수행능력 저하, 백혈구 증가증, 중성구 증가증, 크레아티닌 증가, 저알부민혈증, 고빌리루빈혈증, 간효소(SGPT)치 증가, 프로트롬빈 시간(PT) 연장, 활성부분 트롬보플라스틴 시간(aPTT) 연장, 저나트륨혈증, 고칼륨혈증 등을 보이는 환자는 통계학적으로 유의하게 생존 기간이 짧았다. 이중 Cox의 비례위험함수 모형을 통해 수행능력 저하, 중성구 증가증, PT 연장, aPTT 연장인 경우가 환자의 사망위험도를 높이는 유의한 예후 인자로 나왔다. 생존 기간의 중앙값은 4가지 인자가 모두 있는 경우는 3.0일, 3가지만 있는 경우는 $5.7{\sim}8.2$일, 2가지만 있는 경우는 $11.4{\sim}20.0$일, 1가지만 있는 경우는 $27.9{\sim}40.0$일, 4가지 모두 없는 경우는 77일로 나왔다. 결론 : 말기 암 환자에서 수행능력 저하, 중성구 증가증, PT 연장, aPTT 연장이 사망위험도를 높이는 예후 인자임을 알 수 있었다. 이들 4개 인자를 통해 말기 암 환자에서 생존 기간을 예측할 수 있을 것으로 사료된다.

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Prediction of Time to Recurrence and Influencing Factors for Gastric Cancer in Iran

  • Roshanaei, Ghodratollah;Ghannad, Masoud Sabouri;Safari, Maliheh;Sadighi, Sanambar
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권6호
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    • pp.2639-2642
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    • 2012
  • Background: The patterns of gastric cancer recurrence vary across societies. We designed the current study in an attempt to evaluate and reveal the outbreak of the recurrence patterns of gastric cancer and also prediction of time to recurrence and its effected factors in Iran. Materials and Methods: This research was performed from March 2003 to February 2007. Demographic characteristics, clinical and pathological diagnosis and classification including pathologic stage, tumor grade, tumor site and tumor size in of patients with GC recurrent were collected from patients' data files. To evaluate of factors affected on the relapse of the GC patients, gender, age at diagnosis, treatment type and Hgb were included in the research. Data were analyzed using Kaplan-Meier and logistic regression models. Results: After treatment, 82 patients suffered recurrence, 42, 33 and 17 by the ends of first, second and third years. The mean ( SD) and median ( IQR) time to recurrence in patients with GC were 25.5 (20.6-30.1) and 21.5 (15.6-27.1) months, respectively. The results of multivariate analysis logistic regression showed that only pathologic stage, tumor grade and tumor site significantly affected the recurrence. Conclusions: We found that pathologic stage, tumor grade and tumor site significantly affect on the recurrence of GC which has a high positive prognostic value and might be functional for better follow-up and selecting the patients at risk. We also showed time to recurrence to be an important factor for follow-up of patients.

Is FDG -PET-CT A Valuable Tool in Prediction of Persistent Disease in Head and Neck Cancer

  • Uzel, Esengul Kocak;Ekmekcioglu, Ozgul;Elicin, Olgun;Halac, Metin;Uzel, Omer Erol
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권8호
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    • pp.4847-4851
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    • 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.

Evaluation of the 7th AJCC TNM Staging System in Point of Lymph Node Classification

  • Kim, Sung-Hoo;Ha, Tae-Kyung;Kwon, Sung-Joon
    • Journal of Gastric Cancer
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    • 제11권2호
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    • pp.94-100
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    • 2011
  • Purpose: The 7th AJCC tumor node metastasis (TNM) staging system modified the classification of the lymph node metastasis widely compared to the 6th edition. To evaluate the prognostic predictability of the new TNM staging system, we analyzed the survival rate of the gastric cancer patients assessed by the 7th staging system. Materials and Methods: Among 2,083 patients who underwent resection for gastric cancer at the department of surgery, Hanyang Medical Center from July 1992 to December 2009, This study retrospectively reviewed 5-year survival rate (5YSR) of 624 patients (TanyN3M0: 464 patients, TanyNanyM1: 160 patients) focusing on the number of metastatic lymph node and distant metastasis. We evaluated the applicability of the new staging system. Results: There were no significant differences in 5YSR between stage IIIC with more than 29 metastatic lymph nodes and stage IV (P=0.053). No significant differences were observed between stage IIIB with more than 28 metastatic lymph nodes and stage IV (P=0.093). Distinct survival differences were present between patients who were categorized as TanyN3M0 with 7 to 32 metastatic lymph nodes and stage IV. But patients with more than 33 metastatic lymph nodes did not show any significant differences compared to stage IV (P=0.055). Among patients with TanyN3M0, statistical significances were seen between patients with 7 to 30 metastatic lymph nodes and those with more than 31 metastatic lymph nodes. Conclusions: In the new staging system, modifications of N classification is mandatory to improve prognostic prediction. Further study involving a greater number of cases is required to demonstrate the most appropriate cutoffs for N classification.

Matrix Metalloproteinase-13 - A Potential Biomarker for Detection and Prognostic Assessment of Patients with Esophageal Squamous Cell Carcinoma

  • Sedighi, Maryam;Aledavood, Seyed Amir;Abbaszadegan, MR;Memar, Bahram;Montazer, Mehdi;Rajabian, Majid;Gholamin, Mehran
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권6호
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    • pp.2781-2785
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    • 2016
  • Background: Matric metalloproteinase (MMP) 13 gene expression is increased in esophageal squamous cell carcinomas (ESCCs) and associated with increasing tumor invasion, lymph node involvement and decreased survival rates. Levels of the circulating enzyme may be elevated and used as a marker of tumor progression. In this study, clinical application of MMP-13 serum levels was evaluated for early detection, prediction of prognosis and survival time of ESCC patients. Materials and Methods: Serum levels of MMP13 were determined by ELISA in 66 ESCC patients prior of any treatment and 54 healthy controls for comparison with clinicopathological data through statistical analysis with Man Whitney U and Log-Rank tests. In addition, clinical value of MMP13 levels for diagnosis was evaluated by receiver operating characteristic (ROC) test. Results: The serum level of MMP-13 in patients (>250 pg/ml) was significantly higher than in the control group (<100 pg/ml) (p value=0.004). Also the results showed a significant correlation between MMP-13 serum levels with tumor stage (p value = 0.003), depth of tumor invasion (p value=0.008), involvement of lymph nodes (p value = 0.011), tumor size (p value = 0.018) and survival time. While there were no significant correlation with grade and location of tumors. ROC analysis showed that MMP-13 level is an accurate diagnostic marker especially to differentiate pre-invasive/ invasive lesions from normal controls (sensitivity and specificity: 100%). Conclusions: These findings indicate a potential clinical significance of serum MMP13 measurement for early detection and prognostic assessment in ESCC patients.