Impediments to prenatal diagnosis for beta thalassaemia: experiences from Pakistan

Impact Of Population Screening Programs On The Knowledge, Attitudes And Practices Regarding Prevention Of Thalassema

Beta Thalassemia is the most common genetic disorder in Pakistan. This study was conducted to assess the knowledge, attitudes and practices of parents of children suffering from Thalassemia with regards to disease prevention. It also determined the degree of social and religious opposition faced by these parents during implementation of preventive practices Methods: A descriptive cross-sectional survey was conducted in the 36 districts of Punjab via nine regional centers of Punjab Thalassemia Prevention Project. 248 parents of Beta Thalassemia Major and Intermedia were interviewed using a pre-designed pre-tested structured questionnaire. All statistical analyses were conducted using Statistical Package for Social Sciences (IBM SPSS 23.0) Results: 83.5% of the respondents had adequate knowledge and 98.4% had positive attitudes. Knowledge and attitude were positively correlated (p=0.00). 93% opted for prenatal diagnosis and 91% opted for termination of affected fetus. Among these individuals 12% faced opposition from their family members when they went for diagnostic testing and this opposition rose to 20% when they had to opt for termination. The local religious clerics opposed prenatal diagnosis in 3% of the cases and termination in 7% of the cases Conclusion: When compared to previous studies the knowledge, attitudes and practices of our study population was better. Thus, population screening programs have a positive impact on knowledge, attitudes and practices of caregivers of Thalassemia patients. However, social and religious opposition needs to be countered for further implementation of effective preventive practices.

Perception of Parents of Thalassemic Child to Thalassemia in Pakistan

Background

Thalassemia is an inherited blood disorder characterized by reduced hemoglobin synthesis. Aim of our study is to assess the parental knowledge of thalassemia patients and their awareness regarding treatment and preventive measures against thalassemia.

Methods

It is an observational study done at Ali Zaib Foundation Thalassemia Center in Sahiwal, Pakistan, in May 2019. One hundred parents were enrolled in this study and a subjective questionnaire was used to collect data through direct structured survey method over a period of 30 days.

Results

There were parents of 62 (62%) male patients and 38 (38%) female patients, with a median age of 8.5 ± 6.2 years. Forty-three (43%) parents were illiterate while eight (8%) parents were highly educated. Sixty-six (66%) patients were born to parents with consanguineous marriages. Eighty-two (82%) parents were aware of thalassemia, 72 (72%) were aware of the risk of thalassemia due to cousin marriages, 76 (76%) parents were aware of the importance of prenatal diagnosis (PND), while 88 (88%) believed that a PND was beneficial. Fifty-two (52%) parents knew about thalassemia treatment, 80 (80%) were aware of the importance of blood screening, and 14 (14%) patients were receiving iron chelation therapy. Seventy-eight (78%) parents were aware of thalassemia prevention. All parents believed that the public requires awareness of the importance of premarital screening and PND.

Conclusion

Parental awareness regarding β-thalassemia, its treatment and prevention is fair but far from ideal. Premarital screening, provision of accurate information to the public by professionals, and adequate screening and PND of at-risk families can significantly reduce the rates of thalassemias.

Ethical, social, and cultural issues related to clinical genetic testing and counseling in low- and middle-income countries: a systematic review

PURPOSE

We performed a systematic review of the ethical, social, and cultural issues associated with delivery of genetic services in low- and middle-income countries (LMICs).

METHODS

We searched 11 databases for studies addressing ethical, social, and/or cultural issues associated with clinical genetic testing and/or counselling performed in LMICs. Narrative synthesis was employed to analyze findings, and resultant themes were mapped onto the social ecological model (PROSPERO #CRD42016042894).

RESULTS

After reviewing 13,308 articles, 192 met inclusion criteria. Nine themes emerged: (1) genetic counseling has a tendency of being directive, (2) genetic services have psychosocial consequences that require improved support, (3) medical genetics training is inadequate, (4) genetic services are difficult to access, (5) social determinants affect uptake and understanding of genetic services, (6) social stigma is often associated with genetic disease, (7) family values are at risk of disruption by genetic services, (8) religious principles pose barriers to acceptability and utilization of genetic services, and (9) cultural beliefs and practices influence uptake of information and understanding of genetic disease.

CONCLUSION

We identified a number of complex and interrelated ethical, cultural, and social issues with implications implications for further development of genetic services in LMICs.

Acceptability of prenatal testing and termination of pregnancy in Pakistan

This study aimed to assess acceptability of prenatal testing (PNT) and termination of pregnancy (TOP) for a range of conditions in Pakistani parents with and without a child with a genetic condition. A structured questionnaire assessing acceptability of PNT and TOP for 30 conditions was completed by 400 Pakistani participants: 200 parents with a child with a genetic condition (100 fathers and 100 mothers) and 200 parents without an affected child (100 fathers and 100 mothers). There was a high level of interest in PNT, where over 80 % of parents in all four study groups would want PNT for the majority of the conditions. There was comparatively less interest in TOP for the same conditions (ranging from 5 to 70 % of parents, with mothers of an affected child being most interested). Parents were most likely to be interested in TOP for conditions at the serious end of the continuum. More than half of the participants in each group would consider TOP for anencephaly and quadriplegia. The interest in PNT and TOP for a range of conditions suggests that rapidly developing PNT technologies are likely to be acceptable in Pakistan, a low-middle income level and Muslim country. The comparatively lower level of interest in TOP for the same conditions highlights ethical dilemmas that such technologies are likely to raise.

β-Thalassemia in Pakistan: a pilot program on prenatal diagnosis in Multan

Prenatal diagnosis (PND) of β-thalassemia has been underutilized in Pakistan because of a number of social and economic factors. National Institute for Biotechnology and Genetic Engineering Faisalabad in collaboration with Multan Institute of Nuclear Medicine and Radiotherapy Multan introduced free PND service for carrier couples of Multan district. Multan has a population of about 4 million. More than 170 couples registered for retrospective PND and in 2 years 105 PND were carried out through first trimester chorionic villus sampling. Almost 90% of these couples were unable to afford the cost of PND and would not have undergone the test as free service was not available. Monoplex and Multiplex Amplification Refractory Mutation System-polymerase chain reaction and genomic DNA sequencing were used for detection of IVS (intervening sequence)-I-5 (G-C), FSC (frameshift codon)-8/9 (+G), FSC-41/42 (-TTCT), IVS-I-1 (G-T), 619 bp deletion, and CD-15 (G-A) β-globin mutations. Eighty-one percent (85/105) couples analyzed were in a consanguineous marriage. Twenty-three fetuses were found homozygous mutant and all couples opted for discontinuation of affected pregnancies. More families are registering for PND after establishment of this free and accessible PND service.