Discontinuation and non-adherence to endocrine therapy in breast cancer patients: is lack of communication the decisive factor?

INTRODUCTION

Non-adherence to anti-hormonal therapy is a major problem in gynecologic oncology. Reasons reported are side effects and lack of support. The aim of our study was an analysis of influence of experiences of patients with endocrine therapy and communication and information on this topic and their influence on adherence.

METHODS

We developed a structured questionnaire which was tested in a pilot version and then programmed as online questionnaire and presented to patient members of self-help and breast cancer organizations.

RESULTS

Patients only had received scarce information on endocrine therapy. Only 12.8% stated that their questions were answered in detail, 43.2% got no answers or only non-detailed answers. 76% had side effects limiting functions of daily life. 60% of physicians did not react on these side effects. There is a significant correlation between number and intensity of side effects and non-adherence or disruption of therapy (p = 0.029 and p < 0.01, respectively). Women who reported having received detailed answers to their questions also reported better adherence (p = 0.014).

CONCLUSION

In order to improve adherence, detailed information on side effects and answers in case of symptoms are most important. Physicians should not rely on presenting written information but should mainly engage in direct communication.

Stent graft visualization and planning tool for endovascular surgery using finite element analysis

PURPOSE

A new approach to optimize stent graft selection for endovascular aortic repair is the use of finite element analysis. Once the finite element model is created and solved, a software module is needed to view the simulation results in the clinical work environment. A new tool for interpretation of simulation results, named Medical Postprocessor, that enables comparison of different stent graft configurations and products was designed, implemented and tested.

METHODS

Aortic endovascular stent graft ring forces and sealing states in the vessel landing zone of three different configurations were provided in a surgical planning software using the Medical Imaging Interaction Tool Kit (MITK) software system. For data interpretation, software modules for 2D and 3D presentations were implemented. Ten surgeons evaluated the software features of the Medical Postprocessor. These surgeons performed usability tests and answered questionnaires based on their experience with the system.

RESULTS

The Medical Postprocessor visualization system enabled vascular surgeons to determine the configuration with the highest overall fixation force in 16+/-6 s, best proximal sealing in 56+/-24s and highest proximal fixation force in 38+/- s. The majority considered the multiformat data provided helpful and found the Medical Postprocessor to be an efficient decision support system for stent graft selection. The evaluation of the user interface results in an ISONORM-conform user interface (113.5 points).

CONCLUSION

The Medical Postprocessor visualization software tool for analyzing stent graft properties was evaluated by vascular surgeons. The results show that the software can assist the interpretation of simulation results to optimize stent graft configuration and sizing.

Attitude of employees of a university clinic to complementary and alternative medicine in oncology

BACKGROUND

Cancer patients often use complementary and alternative medicine (CAM), yet discussion with the oncologist is often missing and oncologists lack knowledge in CAM.

PATIENTS AND METHODS

In order to learn more about the attitude of professionals in oncology toward CAM, a survey was conducted on employees of a German university clinic using a structured questionnaire.

RESULTS

In total, 547 employees took part in the survey. One-third would definitely use CAM on cancer patients. Female employees are more interested in CAM than males (80% versus 20%; P = 0.001); physicians are less interested than nurses (57% versus 72%; P = 0.008). 2.5% of physicians and 9% of nurses are convinced that CAM is as effective as conventional therapy in cancer. Fifty-two percent of physicians and 12% of nurses agree that adverse effects due to CAM may be possible. Seventy-three percent did not consider themselves adequately informed on CAM for their professional work.

CONCLUSIONS

As a substantial part of participants would use CAM on cancer patients and most are interested in but not trained on this topic, there is a need for training of professionals from different professions working in oncology.

Patients with advanced cancer and their usage of complementary and alternative medicine

PURPOSE

A total of 40 % of cancer patients use complementary and alternative medicine (CAM), and patients with advanced cancer use CAM more often than others. The aim of our study was to gather data on CAM use and reasons to use CAM of patients with advanced cancer being admitted for residential palliative care and their relatives.

METHODS

Structured interviews were carried out with 25 patients and 25 relatives of those patients, respectively, of a German comprehensive cancer center based on a standardized questionnaire of the working group Prevention and Integrative Oncology of the German Cancer Society.

RESULTS

Median age of patients was 64.5 years (relatives: 53.5); 15 patients were male and 10 were female (relatives: 7 and 18). In total, 40 % of all patients used some CAM method at the time of the study, supplements and prayer being the most frequent method. Main reasons for using CAM were to sustain one's own strength (52 % for patients and 72 % for relatives) and to be able to do something by oneself (36 and 40 %). Sources of information were television/radio (48 and 28 %) and family/friends (40 and 48 %). Relatives also use the Internet (40 %).

CONCLUSIONS

Also for patients in palliative care and their relatives, CAM is important. Reasons for using CAM are similar for patients with less advanced cancer. As most patients do not discuss using CAM with their physician, side effects and interactions of biologically based treatments may be dangerous. The desire of patients to act autonomously should be encouraged. Yet, physicians should ensure safe administration of complementary methods by including CAM in their communication with the patient and the family.

[Information on complementary and alternative medicine at homepages of German cancer self-help]

INTRODUCTION

Complementary and alternative medicine (CAM) is important for cancer patients. The internet has a rising relevance of source of health information. Patient set strong confidence in websites from patient advocacy groups. The websites of German patient advocacy groups were analysed regarding information on CAM.

METHODS

An analysis on the homepages of the most important self-help organizations for cancer patients in Germany was performed. A descriptive analysis of the contents at a cutoff date (20.12.2011) listing the contents was done using an instrument based on the HonCode criteria.

RESULTS

The homepages of the self-help groups are heterogeneous concerning CAM. Only few sites provide more information. The differences between the self-help groups do not correlate with the known user rate of patients with different kinds of cancer. Most homepages dealing with the topic also point to the associated problems of side effects and interactions. All homepages make a clear difference between information and opinion. Influences from outside were not detected.

CONCLUSION

In spite of a high number of patients using CAM the topic is only infrequently represented on the homepages. This could be due to difficult and contradictory data on KAM. As websites of patient advocacy are well suited to provide information on CAM the patient version of a S3 guideline in the German national guideline program in oncology could provide a fundament.