Cancer
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Multicenter Study Comparative Study
Detection of stool DNA mutations before and after treatment of colorectal neoplasia.
Whether stool DNA abnormalities arise solely from colorectal neoplastic lesions or are due to more pervasive field effects is not known. In the current study, the authors conducted a prospective multicenter study to evaluate the performance of stool-based DNA testing in a large cohort and to examine whether the findings before treatment persist after surgical resection and/or adjuvant therapy. ⋯ Although many samples collected 1-3 months after surgical resection of the colorectal neoplasm tested positive on the MTAP, most were negative by 6-9 months, indicating that stool DNA abnormalities disappear after treatment of the neoplastic lesions. Surgery and chemoradiation appear to induce transient DIA abnormalities that may be independent of the presence of neoplasia.
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Advanced breast carcinoma almost always leads to a malignant pleural effusion, conditioning the performance status of patients and consequently quality of life. The treatment of malignant pleural effusion should be a priority in the management of such patients. The results of video-thoracoscopic approach (VATS) chemical pleurodesis was analyzed in patients with recurrent pleural effusion from breast carcinoma. ⋯ Talc pleurodesis via VATS is an effective and safe procedure that yields a high rate of success at the first attempt and achieves long-term control of malignant pleural effusion due to breast carcinoma. Concomitant biopsies performed during the VATS procedure were a determining factor in the subsequent decision-making process.
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The clinical features of ipsilateral breast tumor recurrence (IBTR) after breast conserving therapy (BCT) for early stage breast cancer were analyzed from long-term follow-up of BCT in Japan. The purpose of this study was to clarify risk factors of IBTR and the impact of IBTR on development of distant metastases in this ethnic group. ⋯ Young age, positive surgical margin, and omission of radiation therapy seemed to be important factors in relation to local control. The authors' results also indicated that IBTR is significantly associated with subsequent distant metastasis. Patients with positive nodal status at primary operation or with short interval from primary operation to IBTR are at especially high risk of distant metastasis. It remains unclear, however, whether IBTR is an indicator or a cause of subsequent distant metastases.
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In Radiation Therapy Oncology Group (RTOG) trial 92-02, after men received neoadjuvant hormone cytoreduction and radiotherapy for locally advanced prostate carcinoma, they were randomized to receive either 2 years of long-term androgen-deprivation (LTAD) or no further treatment (short-term androgen-deprivation [STAD]). The specific objective of the current study was to determine whether LTAD was a cost-effective treatment for patients with locally advanced prostate carcinoma. ⋯ The current analysis showed that LTAD was cost-effective for the entire population studied in RTOG trial 92-02.
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Randomized Controlled Trial
Impact of coping skills intervention with family caregivers of hospice patients with cancer: a randomized clinical trial.
Family caregivers for cancer patients experience high levels of stress and burden and diminished quality of life (QOL). Interventions to improve coping skills of caregivers have been shown to be effective with other populations, but their impact has not been assessed in the difficult context of hospice care. The purpose of this study was to determine whether hospice plus a coping skill training intervention improved family caregivers' QOL, burden, coping, and mastery, compared with hospice plus emotional support, and usual hospice care. ⋯ The coping skills intervention was effective in improving caregiver QOL, reducing burden related to patients' symptoms, and caregiving tasks compared with hospice care alone or hospice plus emotional support. Structured caregiver skill-training interventions for caregivers are promising even in the difficult environment of end-of-life care and for families already receiving benefits of hospice care.