Worries of childhood cancer survivors in young adulthood

Psychosocial interventions for childhood cancer survivors: Systematic review and meta-analysis of randomized control trials

PURPOSE

This study was aimed to review and analyze the evidence of the psychosocial interventions for survivors of childhood cancer.

METHODS

Electronic databases (PubMed, Embase, Medline, Web of Science, Science Direct, and Scopus) and manuel search were performed for psychosocial randomised controlled trials (RCTs) conducted with survivors who were diagnosed under the age of 18 and have completed treatment. Meta-analyses were performed to evaluate the effects of interventions on psychosocial health outcomes. The trials were published in English between 1 January 2000 to 30 June 2022 were included. Extracted data were analyzed using Review Manager 5.4.

RESULTS

Ten trials conducted with 955 childhood cancer survivors were included in the systematic review. Meta-analysis of six RCTs showed no difference in the general quality of life (SMD, 0.07; 95% CI: [-0.09 to 0.23], I2 0%, (p > 0.05)) and three RCTs showed no difference in the physical activity self-efficacy (SMD, 0.12; 95% CI: [-0.35 to 0.58], I2 75%, (p > 0.05)) between intervention and control group. Interventions longer than 24 weeks (including follow-up) were effective in the quality of life and physical activity self-efficacy of the survivors. The overall quality of the evidence was low due to overall low risk of bias for only half of the studies (50%).

CONCLUSIONS

Psychosocial interventions were not effective on quality of life and physical activity self-efficacy of childhood cancer survivors, however, long-term interventions provided improvement in these outcomes.

REGISTRATION

The protocol for the meta-analysis was registered at PROSPERO (CRD42022375053/22 Nov 2022).

An Examination of the Association Between Psychosocial Aspects of Fertility Issues and Demographic Characteristics of Unmarried Adolescent and Young Adult Cancer Survivors

Purpose: The purpose of this study was to examine the association between fertility issues and demographic characteristics of unmarried adolescent and young adult cancer survivors. Methods: We conducted a survey among cancer survivors who were 15-39 years old and unmarried at the time of cancer diagnosis and 20-45 years old at the time of the survey. Views on fertility issues, originally developed based on the results of a qualitative study conducted with the same inclusion criteria, were used to assess thoughts and feelings regarding fertility issues. Results: Through exploratory factor analysis of the 128 respondents who either had children or desired children, two factors related to fertility issues were identified: "anxiety related to the possibility of not being able to have children" and "pressure from others to have children." Multiple regression analysis was performed to examine the association between these factors and demographic characteristics. The analysis revealed that being male and having a partner were significant predictors for both factors for views on fertility issues. Additionally, younger age at the time of diagnosis was a significant predictor for the first factor. Conclusions: Greater fertility issues among unmarried cancer survivors were associated with younger age at diagnosis, having a partner, and being male. Surprisingly, contrary to previous findings, male cancer survivors experienced more significant fertility problems than women. This result may be attributed to the well-established gender roles in Japan, where men are predominantly considered the heirs and inheritors of the family.

Positive and negative survivor-specific psychosocial consequences of childhood cancer: the DCCSS-LATER 2 psycho-oncology study

PURPOSE

Numerous studies investigated generic psychosocial outcomes in survivors of childhood cancer (CCS). The present study aimed to describe survivor-specific psychosocial consequences in CCS, and to identify socio-demographic and medical associated factors.

METHODS

CCS from the Dutch Childhood Cancer Survivor Study (DCCSS)-LATER cohort (diagnosed 1963-2001) part 2 (age ≥ 18 years, diagnosed < 18 years, ≥ 5 years since diagnosis) completed the Benefit & Burden Scale (BBSC) and the Impact of Cancer-Childhood Cancer (IOC-CS). Items were scored on a 5-point Likert scale (range 1-5). We examined outcomes with descriptive statistics, and socio-demographic and medical associated factors with regression analyses, corrected for multiple testing (p < 0.004).

RESULTS

CCS, N = 1713, age mean (M) 36 years, 49% female, ≥ 15 years since diagnosis, participated. On average, CCS reported 'somewhat' Benefit (M = 2.9), and 'not at all' to 'a little' Burden (M = 1.5) of childhood cancer. Average scores on IOC-CS' positive impact scales ranged from 2.5 (Personal Growth) to 4.1 (Socializing), and on the negative impact scales from 1.4 (Financial Problems) to 2.4 (Thinking/Memory). Apart from cognitive problems, CCS reported challenges as worries about relationship status, fertility, and how cancer had affected siblings. Female sex was associated with more Personal Growth, and more negative impact. CCS more highly educated, partnered, and employed had higher positive and lower negative impact. CCS older at diagnosis reported more positive impact. CNS tumor survivors and those who had head/cranium radiotherapy had higher negative impact. CNS tumor survivors reported less positive impact.

CONCLUSION AND IMPLICATIONS

The majority of CCS reported positive impact of cancer while most CCS reported little negative impact. While this may indicate resiliency in most CCS, health care providers should be aware that they can also experience survivor-specific challenges that warrant monitoring/screening, information provision and psychosocial support.

'Trying to catch up with life': The expectations and views of adolescent survivors of childhood acute lymphoblastic leukaemia about long-term follow-up care: A qualitative research

OBJECTIVE

The aim of this study was to explore adolescent survivors' views and expectations about long-term follow-up care.

METHODS

Semi-structured, in-depth interviews were conducted with 16 adolescent survivors of childhood acute lymphoblastic leukaemia. Survivors who had completed treatment at least 2 years ago were involved in the study. Interviews were audio-recorded and transcribed verbatim. An inductive thematic approach was used to analyse the data.

RESULTS

Four main themes and sub-themes were identified from the analysis as follows: information needs with three sub-themes 'long-term follow-up, healthy life and social life', support needs with three sub-themes 'psychosocial (peer relations etc.), school related and social-emotional (fear of relapse, body image, self-esteem, etc.)', perceived benefits with two sub-themes 'social-emotional and related to long-term follow-up' and perceived barriers 'medical-hospital related and social life'.

CONCLUSIONS

Adolescent survivors mainly need support in terms of psychosocial aspects: self-esteem-body image, school, peer relations and social activities during follow-up. Identified barriers related to follow-up were school absence and not able to participate social activities. Adolescents specify health promotion approaches as benefits aspects of follow-up. The findings of this study will guide nurses in the long-term follow-up care of adolescent survivors of acute lymphoblastic leukaemia and provide an opportunity to plan individualised follow-up care.

Prevalence and predictors of psychological distress among patients with thyroid cancer during transitional period in China: a cross-sectional study

OBJECTIVE

This study aimed to explore the psychological distress and its predictors among Chinese patients with thyroid cancer during their transitional period from hospital to home.

METHODS

A cross-sectional study was conducted in a cancer hospital in Tianjin, China. A total of three hundred patients with thyroid cancer completed the Chinese version of the National Comprehensive Cancer Network Distress Thermometer (DT), Cancer Fatigue Scale, and the Brief Illness Perception Questionnaire. Logistic regression was used to obtain the model of predictors of psychological distress among patients with thyroid cancer during the transitional period.

RESULTS

The DT score of 300 patients with thyroid cancer ranged from 0 to 10, and the median DT score was 2 [1-4]. The prevalence of clinically relevant psychological distress (DT score ≥ 4) in Chinese patients with thyroid cancer during their transitional period was 29.33% (88/300). The results of logistic regression analysis showed that gender (OR = 2.505, P = 0.036), fatigue (OR = 1.086, P = 0.005), and illness perception (OR = 1.137, P < 0.001) were significantly related to psychological distress in patients with thyroid cancer.

CONCLUSIONS

The psychological distress of patients with thyroid cancer during the transitional period is medium level. Patients with thyroid cancer who are female, easily fatigued, and have worse illness perceptions are more likely to experience psychological distress. Therefore, clinical attention should be paid to female patients and potential interventions aimed at improving fatigue and illness perception. It may reduce the prevalence of psychological distress during the transitional period.

A Pilot Study for the Development and Evaluation of an Educational Program to Reduce Stigma Toward Cancer and Cancer Survivors: Focusing on Dating and Marriage After Cancer Diagnosis

The marriage rate of cancer survivors is lower than that of the general population and their siblings. This appears to be attributable to negative images and stigma in society regarding cancer and cancer survivors. In order to improve images and decrease stigma regarding cancer and cancer survivors, this study aimed to develop an educational program that primarily focuses on dating and marriage after cancer diagnosis. The education program was conducted for university students, and among 67 participants who attended the education program, 61 participants completed a self-report questionnaire both before and after the program. The questionnaire included measures to assess reluctance to date or marry a cancer survivor, attitudes toward marriage and having children, and level of empathy. Scores on most items assessing reluctance decreased after the program; however, only three items showed a significant decrease: reluctance to date a cancer survivor if cancer recurred or metastasized, and reluctance if one's family objects to dating a cancer survivor. Both before and after the program, disease severity was the main cause for reluctance to date. In addition, empathetic concern was associated with reduced reluctance to date or marry a cancer survivor, while conservative attitudes toward marriage were associated with greater reluctance which was a result of familial concerns regarding such relationships. Some of the reluctance could be attributable to sociocultural values in Asia, where the choice of romantic partner is likely to be subject to familial influence.

How do they grow out of their cancer experience? Korean adolescent and young adult cancer survivors' stories

Objectives: Cancer experiences can bring positive as well as negative impacts. The current literature, however, focuses mainly on the negative impacts. This qualitative study examines Korean childhood cancer survivors' post-traumatic growth, which concerns how they respond positively to the cancer experience and how they change as a result of their experience.Design: In-person or telephone interviews were conducted with 31 adolescent and young adult survivors of childhood cancer post-treatment who were living in Korea.Results: Thematic analysis found that childhood cancer survivors experienced growth by feeling gratitude (being content with the present, making comparisons with worse situations), engaging in self-affirmation ('I am strong'; 'My example can help others'; 'I am ready for new challenges'), deepening faith (communicating with God, trusting God's direction), and finding the social meaning of cancer (becoming a self-advocate, mapping out a career path).Conclusions: The study findings can be used by psychosocial care professionals to support Korean cancer survivors to recognize post-traumatic growth and, thus, achieve improved well-being.

Living with the Late Effects of Childhood Cancer Treatment: A Descriptive Qualitative Study

Long-term childhood cancer survivors (CCS) may experience physical, social, and emotional struggles posttreatment. Our aim was to explore the experiences of CCS dealing with the late effects of cancer treatment from their own perspectives. This study employed a qualitative descriptive design to explore and describe the experience of dealing with late effects among CCS. Semi-structured interviews were conducted with 15 CCS in Korea. Participants were selected by purposive and snowball sampling and individually interviewed during the period from September to November 2020. Conventional content analysis was used to analyze data and identify themes. Two main themes and seven subthemes emerged. The two main themes were: "Things I encountered while crossing a bridge" and "Living as a survivor". The participants reported both positive and negative experiences with dealing with the late effects of cancer treatment. The main themes indicated that late effects exert significant impacts on the lives of CCS in both positive and negative ways. Healthcare providers and researchers should pay attention to early intervention needs of CCS and their support systems to strengthen their positive experiences in dealing with late effects during their survivorships.

The Impact of Cancer on Romantic Relationships and Marriage Postdiagnosis Among Young Adult Cancer Survivors in Japan: A Qualitative Study

Purpose: This study explored the impact of cancer on romantic relationships and marriage postdiagnosis among adolescents and young adults (AYAs) who had been diagnosed with cancer in Japan. Methods: Semistructured interviews were conducted with 24 AYA cancer survivors, regardless of cancer type, who were unmarried and aged 15-39 at the time of cancer diagnosis. For theme and category generation, the authors coded the interview transcripts independently through inductive thematic analysis. Results: The analysis yielded 11 themes. The most common impact on romantic partnership was "fertility and parenthood concerns" (45.8%), followed by "disclosure of cancer history" (37.5%), and finally by "recurrence, metastasis, and poor health" (25.0%). Conclusions: Although the impacts of cancer that were identified in this study were mostly consistent with earlier findings, certain impacts seem to stem from traditional family perceptions in East Asia. Because men are traditionally seen as the family successors, unlike women, they are primarily concerned about fertility and parenthood. This causes a parental influence on romantic and marital choices. The fact that there exists a parental influence in partner selection from the parents of both men and women indicates that cultural factors in East Asia/Japan influence romantic and/or marriage postdiagnosis.

Identifying and exploring the self-management strategies used by childhood cancer survivors

PURPOSE

Childhood cancer survivors (CCSs) are at increased risk of chronic health problems. Effective self-management could help CCSs cope with the challenges that accompany survivorship and reduce their risk of developing further health problems. There is little evidence about the extent to which CCSs engage with self-management and the specific strategies they use. This study aimed to identify and explore the strategies that CCSs use to manage the consequences of cancer.

METHODS

Twenty-four CCSs were recruited via follow-up clinics. Participants completed a semi-structured interview which was audio-recorded and transcribed. Directed content analysis was used to identify self-reported self-management strategies and categorise them into main self-management types.

RESULTS

CCSs reported 118 specific self-management strategies which fell under 20 main self-management strategy types. All CCSs reported using several main self-management strategy types and specific self-management strategies. Main strategy types used by all CCSs were "adopting a healthy lifestyle", "self-motivating", "using support", "reasoned decision-making" and "creating a healthy environment". The most common specific self-management strategies were "receiving family support" (n = 20) and "attending follow-up and screening appointments" (n = 20).

CONCLUSIONS

This is the first study which has enabled CCSs to self-report the numerous strategies they employ to look after their health and well-being, contributing to a more comprehensive picture of self-management in CCSs.

IMPLICATIONS FOR CANCER SURVIVORS

These findings may increase healthcare professionals' awareness of the many ways in which CCSs manage their health and is a valuable first step in the development of a supported self-management intervention for CCSs in follow-up care.

Fertility-Related Concerns and Uncertainties in Adolescent and Young Adult Childhood Cancer Survivors

Purpose: This study aimed to uncover the fertility-related concerns and uncertainties in adolescent and young adult (AYA) childhood cancer survivors. Methods: In this qualitative study, participants were recruited from an oncohematology outpatient clinic at a university hospital in Brazil. Twenty-four AYA cancer survivors, aged 18- 24 years (13 men and 11 women), participated in individual semistructured interviews focusing on two parts-sociodemographic and clinical variables and guiding questions that enabled understanding of the concerns and uncertainties regarding the risks of infertility and their impact on relationships and the need for guidance. Data were analyzed using inductive thematic analysis. Results: Four themes were identified from the data-(1) knowledge about fertility, (2) emotional impact and fertility-related uncertainty, (3) sharing the possible risk of infertility with partners, and (4) need for information on possible loss of fertility. Conclusion: The meanings attributed to the loss of fertility after cancer treatment uncovered the need for health professionals to organize survivor services in line with the survivors' needs, and include reproductive concerns and uncertainties in this planning. The study results provide insights for the development of health care services that meet the real needs of this particular population that has long-term follow-up demands.

Korean parents' perceptions of the challenges and needs on school re-entry during or after childhood and adolescent cancer: a multi-institutional survey by Korean Society of Pediatric Hematology and Oncology

BACKGROUND

For children and adolescents with cancer, going back to school is a key milestone in returning to "normal life."

PURPOSE

To identify the support vital for a successful transition, we evaluated the parents' needs and the challenges they face when their children return to school.

METHODS

This multi-institutional study was conducted by the Korean Society of Pediatric Hematology and Oncology. The written survey comprised 24 questions and was completed by 210 parents without an interviewer.

RESULTS

Most parents (165 of 206) reported that their children experienced difficulties with physical status (n=60), peer relationships (n=30), academic performance (n=27), emotional/behavioral issues (n=11), and relationships with teachers (n=4) on reentering school. Parents wanted to be kept informed about and remain involved in their children's school lives and reported good parent-teacher communication (88 of 209, 42.1%). Parents reported that 83.1% and 44.9% of teachers and peers, respectively, displayed an adequate understanding of their children's condition. Most parents (197 of 208) answered that a special program is necessary to facilitate return to school after cancer therapy that offers emotional support (n=85), facilitates social adaptation (n=61), and provides tutoring to accelerate catch up (n=56), and continued health care by hospital outreach and school personnel (n=50).

CONCLUSION

In addition to scholastic aptitude-oriented programs, emotional and psychosocial support is necessary for a successful return to school. Pediatric oncologists should actively improve oncology practices to better integrate individualized school plans and educate peers and teachers to improve health literacy to aid them in understanding the needs of children with cancer.

Comparison of Quality of Life and Learning Success of Adolescents Surviving Cancer and Their Classmates

The aim of this study was to compare the quality of life and school success of adolescent survivors and their classmates. A survey was conducted among 21 cancer survived 12-18-year-old children and 95 of their classmates by using questionnaires covering (a) characteristics of the quality of life; (b) characteristics of the learning process; and (c) level of the fear of cancer recurrence. Significant difference was found in the field of physical and emotional functions but contrary to expected, the members of the control group reported lower values than survivor children. Those children that were teased because of cancer made friends hardly and got involved in social programs with more difficulty. With reference to the level of development of school motivation and the use of learning strategies, it was experienced a significant difference between the two groups only in the field of planning. Our results show that the better the survived children's general quality of life is the better results they achieve at school. Their learning achievement is influenced to a much bigger extent by social functions than their physical disadvantages.

Ways of understanding the ability to have children among young adult survivors of childhood cancer - A phenomenographic study

PURPOSES

The aim was to explore the ways young adult survivors of childhood cancer with risk of being infertile understand their ability to have children.

METHOD

The study has a qualitative design with a phenomenographic approach. Interviews with a purposeful sample of 19 childhood cancer survivors who did not have children (age range 17-27) were carried out and analysed.

RESULTS

We identified four qualitatively different ways in which young adult survivors of childhood cancer understand their ability to have children: difficulty in having children is not as important as surviving cancer, having a biological child may be a complicated procedure, having children may be affected by hereditary concerns, having children in the future is a difficult topic to deal with.

CONCLUSIONS

The four different ways in which young adult childhood cancer survivors understand their ability to have children did not appear to be solely related to information they had or had not received during treatment but appeared to reflect their current life situation and how they were coping with their cancer experience. Using survivors' understandings of their ability to have children is recommended as a starting point when healthcare personnel initiate communication about fertility issues in survivorship care. Some survivors need psychosocial support for the acceptance and management of both cancer and fertility problems.

Proposed Criteria for Systematic Evaluation of Qualitative Oncology Research

Oncology has made significant advances in standardizing how clinical research is conducted and reported. The advancement of such research that improves oncology practice requires an expansion of not only our research questions but also the research methods we deploy to address them. In particular, there is increasing recognition of the value of qualitative research methods to develop more comprehensive understandings of phenomena of interest and to describe and explain underlying motivations and potential causes of specific outcomes. However, qualitative researchers in oncology have lacked guidance to produce and evaluate methodologically rigorous qualitative publications. In this review, we highlight characteristics of high-quality, methodologically rigorous reports of qualitative research, provide criteria for readers and reviewers to appraise such publications critically, and proffer guidance for preparing publications for submission to Journal of Oncology Practice. Namely, the quality of qualitative research in oncology practice is best assessed according to key domains that include fitness of purpose, theoretical framework, methodological rigor, ethical concerns, analytic comprehensives, and the dissemination/application of findings. In particular, determinations of rigor in qualitative research in oncology practice should consider definitions of the appropriateness of qualitative methods for the research objectives against the setting of current literature, use of an appropriate theoretical framework, inclusion of a rigorous and innovative measurement plan, application of appropriate analytic techniques, and clear explanation and dissemination of the research findings.

Returning to Social Life: Development of Social Identity for Adolescent and Young Adult Survivors of Leukemia in Korea

OBJECTIVE

The purpose of this study is to investigate the life experiences and processes that occur as adolescent and young adult leukemia survivors return to social life using grounded theory.

METHOD

This study comprised 14 adolescents and young adults who visited a hospital for follow-up care after treatment of leukemia. We used in-depth interviews to examine the participants' experiences in returning to social life. The semistructured questionnaire examined "good and bad experiences in returning to social life," "sources of happiness and stress," and "strategies for managing stressful events."

RESULTS

We extracted 6 categories and 21 concepts from the interviews. We grouped the 6 categories into a core category and three phases: "catching up with others," "discovering myself," and "planning my future." A core category shown through all phases was "fear of recurrence." The "catching up with others" phase included themes of "feeling different from others" and "wanting to be like others." The "discovering myself" phase included "completing one thing at a time" and "recognizing myself as special." The "planning my future" phase included "looking for things I can do."

CONCLUSIONS

Self-esteem was an important issue for adolescent leukemia survivors; negative illness perception affected self-esteem in both adolescents and young adults. It is important for health care providers to develop programs to help adolescent and young adult leukemia survivors to perceive their disease experiences more positively and to take part in social life, including school life.

Self-disclosure to peers by young adult cancer survivors

OBJECTIVE

Given the potential benefits of self-disclosure, the goal of this study was to learn more about how young adult cancer survivors navigate the process of disclosing their cancer history to peers.

METHODS

A sample of 122 young adult cancer survivors completed a brief, online survey. Data were collected to assess how and why survivors self-disclose to peers and how peers react.

RESULTS

Participants endorsed a number of reasons for disclosing their cancer history to peers (eg, felt it was important for them to know) or choosing not to disclose (eg, to avoid upsetting/burdening them). Participants used a variety of strategies during the disclosure with the most frequently endorsed being humor and providing reassurance. Mediational analyses supported the study hypothesis: The relationship between peer reactions to self-disclosure and the likelihood of future disclosure was mediated by survivors' satisfaction with the self-disclosure experience. Exploratory analyses provided some insight into which disclosure strategies were met with a more positive reaction from peers.

CONCLUSIONS

The actual and anticipated reactions from peers play a crucial role in shaping young adult cancer survivors' experience of self-disclosure. Clinicians may use these findings to help young survivors optimize their self-disclosure experiences.

Difficulties faced by long-term childhood cancer survivors: A qualitative study

PURPOSE

Due to improved survival rates of childhood cancer, there has been growing attention to survivors. In addition, experiences of illness in youth, during growth and development, affect the lives of these individuals in numerous ways. With a sample of long-term survivors of childhood cancer, this study investigated their difficult experiences after treatment completion and provided fundamental data for intervention programs that can assist growth.

METHODS

Data from 15 survivors aged 15-28 years old were collected through face-to-face interviews; analysis used Giorgi's phenomenological method.

RESULTS

The long-term survivors' lives involved a process of struggle to overcome the difficulties. Survivors had physical vestiges of cancer treatments, such as physical strength limitations, appearance changes, and sexual problems. Additionally, they experienced social withdrawal and awkwardness due to adaptation difficulties caused by social life interruption, family issues, social prejudice, and discrimination. These physical and social struggles led to experiences of mental stress and psychological withdrawal, but were followed by rebound.

CONCLUSIONS

Long-term survivors of childhood cancer experienced physical, social, and emotional struggles following treatment completion. These results can yield improved understanding of this population, facilitate attention to their challenges, and contribute to their more effective integration into society, helping them live healthy and positive lives.

Perceptions of future health and cancer risk in adult survivors of childhood cancer: A report from the Childhood Cancer Survivor Study

BACKGROUND

Survivors of childhood cancer are at significant risk for serious chronic health conditions and subsequent cancers because of their prior treatment exposures. However, little is known about survivors' perceptions of their future health risks.

METHODS

This study examined self-reported levels of concern about future health and subsequent cancer in 15,620 adult survivors of childhood cancer (median age, 26 years; median time since diagnosis, 17 years) and 3991 siblings in the Childhood Cancer Survivor Study. The prevalence of concerns was compared between survivors and siblings, and the impact of participant characteristics and treatment exposures on concerns was examined with multivariable modified Poisson regression to estimate relative risks (RRs) and 95% confidence intervals (CIs).

RESULTS

A substantial proportion of survivors were not concerned about their future health (31%) or developing cancer (40%). The prevalence of concern in survivors was modestly higher (RR for future health, 1.12; 95% CI, 1.09-1.15) or similar (RR for subsequent cancer, 1.02; 95% CI, 0.99-1.05) in comparison with siblings. Survivors exposed to high doses of radiation (≥20 Gy) were more likely to report concern (RR for future health, 1.13; 95% CI, 1.09-1.16; RR for subsequent cancer, 1.14; 95% CI, 1.10-1.18), but 35% of these high-risk survivors were not concerned about developing cancer, and 24% were not concerned about their future health.

CONCLUSIONS

A substantial subgroup of survivors were unconcerned about their future health and subsequent cancer risks, even after exposure to treatments associated with increased risk. These survivors may be less likely to engage in beneficial screening and risk-reduction activities. Cancer 2018. © 2018 American Cancer Society.

Increased prescription rates of anxiolytics and hypnotics to survivors of cancer in childhood, adolescence, and young adulthood-A population-based study

BACKGROUND

Survivors of cancer diagnosed in childhood, adolescence, or young adulthood (CAYACS) risk psychological morbidities later in life. The study compares prescription rates of anxiolytics and hypnotics among survivors to rates in age- and gender-matched controls.

PROCEDURES

The population-based cohort included 5,341 cancer survivors, diagnosed ≤25 years of age during 1965-2000. For each survivor, three age- and gender-matched controls were randomly selected from the general population. Data were identified from the Norwegian Cancer and Population registries and linked to the Norwegian Prescription Database. A Cox proportional hazard model was applied to estimate hazard ratios (HRs) of prescriptions during 2004-2012 to the survivors with controls as referents.

RESULTS

Survivors had an increased risk of being prescribed anxiolytics with crude rates of 16.9/1,000 person years compared to 11.8/1,000 person years in controls (HR 1.41; 95% confidence interval [CI] 1.29-1.54). The relative risk was highest for survivors of neuroblastomas (HR 2.62; 95% CI 1.11-6.16), bone tumors (HR 2.00; 95% CI 1.26-3.18), and central nervous system tumors (HR 1.90; 95% CI 1.40-2.51). The risk of being prescribed hypnotics was increased with crude rates of 20.8/1,000 person years compared to 14.3/1,000 person years in controls (HR 1.44; 95% CI 1.32-1.56). The relative risk was highest for survivors of gastrointestinal tumors (HR 1.80; 95% CI 1.04-3.10), leukemias (HR 1.78; 95% CI 1.32-2.38), and soft tissue cancers (HR 1.70; 95% CI 1.09-2.64).

CONCLUSIONS

Certain groups of CAYACS have an increased risk for being prescribed anxiolytics or hypnotics compared to controls. Diagnostic reasons for prescriptions are unknown, but the results indicate an increased emotional burden among these groups of survivors.

Spermatogonial stem cell transplantation and male infertility: Current status and future directions

Objective

To summarise the current state of research into spermatogonial stem cell (SSC) therapies with a focus on future directions, as SSCs show promise as a source for preserving or initiating fertility in otherwise infertile men.

Materials and methods

We performed a search for publications addressing spermatogonial stem cell transplantation in the treatment of male infertility. The search engines PubMed and Google Scholar were used from 1990 to 2017. Search terms were relevant for spermatogonial stem cell therapies. Titles of publications were screened for relevance; abstracts were read, if related and full papers were reviewed for directly pertinent original research.

Results

In all, 58 papers were found to be relevant to this review, and were included in appropriate subheadings. This review discusses the various techniques that SSCs are being investigated to treat forms of male infertility.

Conclusions

Evidence does not yet support clinical application of SSCs in humans. However, significant progress in the in vitro and in vivo development of SSCs, including differentiation into functional germ cells, gives reason for cautious optimism for future research.