Turner syndrome in childhood period – A case Report

INTRODUCTION: Turner syndrome is a frequent chromosome disorder characterized by short stature, gonadal dysgenesis and multisystem diseases associated with high morbidity and reduced life expectancyCASE: We reviewed an 18 month old patient who presented to the genetics unit at Rwanda Military Hospital (RMH), a tertiary healthcare facility, with a chief complaint of poor weight gain. She was born with a birth weight of 1.76kg and in the neonatal period, paediatricians had noticed dysmorphic features. At the first consultation at the RMH genetics unit, he weighed 5.2kg and was 64 cm tall. Physical examinations revealed some dysmorphic features, including hypertelorism, absent philtrum, short and webbed neck and large low set ears. Cytogenetic analysis showed the chromosomal formula of 45, X0. CONCLUSION: ThepatientwasdiagnosedwithTurnersyndromebasedonthecytogeneticanalysis and managed with physiotherapy of stimulation and re-education that led to improvements

Management challenges of disorders of sex development- Case Series

INTRODUCTION: Disorders of sex development (DSDs) are genetic abnormalities characterized by discordance between phenotypic, gonadal, and genetic sex. They are grouped into two categories based on karyotype: 46, XX DSD and 46, XY DSD.CASES: We reviewed two patients referred to the Rwanda Military Hospital genetic unit. The first patient was a 3-year-old toddler who was referred for confusing sex organs. Physical examination showed ambiguous genital organs with hypospadias and micropenis. Pelvic examination showed a swelling solid mass hat leading to a suspicion of ovary or undescended testes or combined ovary and testes (ovotestes). The second patient was a 17 years old teenager who presented with primary amenorrhea and lack of female secondary sexual characteristics at her age. The karyotype test was performed to investigate the genotypic sex of the patients and results revealed the karyotype formula of 46, XX/XY indicating the presence of two cell lines in the patient for the toddler and 46XYinv9 (p11q13) indicating the mismatch between the genotype and phenotype of the patients for the teenager. CONCLUSION: Patients were diagnosed with Disorder of Sex Development with 46, XX/XY and 46, XY genotypes respectively. A multidisciplinary team of a geneticist, urologist, endocrinologist and a psychologist reviewed the patient for the effective management

Field testing two existing, standardized respiratory severity scores (LIBSS and ReSViNET) in infants presenting with acute respiratory illness to tertiary hospitals in Rwanda - a validation and inter-rater reliability study.

INTRODUCTION: There is a substantial burden of respiratory disease in infants in the sub-Saharan Africa region. Many health care providers (HCPs) that initially receive infants with respiratory distress may not be adequately skilled to differentiate between mild, moderate and severe respiratory symptoms, which may contribute to poor management and outcome. Therefore, respiratory severity scores have the potential to contributing to address this gap. OBJECTIVES: to field-test the use of two existing standardized bronchiolitis severity scores (LIBSS and ReSViNET) in a population of Rwandan infants (1-12 months) presenting with respiratory illnesses to urban, tertiary, pediatric hospitals and to assess the severity of respiratory distress in these infants and the treatments used. METHODS: A cross-sectional, validation study, was conducted in four tertiary hospitals in Rwanda. Infants presenting with difficulty in breathing were included. The LIBSS and ReSViNET scores were independently employed by nurses and residents to assess the severity of disease in each infant. RESULTS: 100 infants were recruited with a mean age of seven months. Infants presented with pneumonia (n = 51), bronchiolitis (n = 36) and other infectious respiratory illnesses (n = 13). Thirty-three infants had severe disease and survival was 94% using nurse applied LIBSS. Regarding inter-rater reliability, the intra-class correlation coefficient (ICC) for LIBSS and ReSViNET between nurses and residents was 0.985 (95% CI: 0.98-0.99) and 0.980 (0.97-0.99). The convergent validity (Pearson's correlation) between LIBSS and ReSViNET for nurses and residents was R = 0.836 (p<0.001) and R = 0.815 (p<0.001). The area under the Receiver Operator Curve (aROC) for admission to PICU or HDU was 0.956 (CI: 0.92-0.99, p<0.001) and 0.880 (CI: 0.80-0.96, p<0.001) for nurse completed LIBSS and ReSViNET respectively. CONCLUSION: LIBSS and ReSViNET were designed for infants with bronchiolitis in resource-rich settings. Both LIBSS and ReSViNET demonstrated good reliability and validity results, in this cohort of patients presenting to tertiary level hospitals. This early data demonstrate that these two scores have the potential to be used in conjunction with clinical reasoning to identify infants at increased risk of clinical deterioration and allow timely admission, treatment escalation and therefore support resource allocation in Rwanda

Hybrid multicriteria fuzzy classification of network traffic patterns, anomalies, and protocols

© 2017, Springer-Verlag London Ltd., part of Springer Nature. Traffic classification in computer networks has very significant roles in network operation, management, and security. Examples include controlling the flow of information, allocating resources effectively, provisioning quality of service, detecting intrusions, and blocking malicious and unauthorized access. This problem has attracted a growing attention over years and a number of techniques have been proposed ranging from traditional port-based and payload inspection of TCP/IP packets to supervised, unsupervised, and semi-supervised machine learning paradigms. With the increasing complexity of network environments and support for emerging mobility services and applications, more robust and accurate techniques need to be investigated. In this paper, we propose a new supervised hybrid machine-learning approach for ubiquitous traffic classification based on multicriteria fuzzy decision trees with attribute selection. Moreover, our approach can handle well the imbalanced datasets and zero-day applications (i.e., those without previously known traffic patterns). Evaluating the proposed methodology on several benchmark real-world traffic datasets of different nature demonstrated its capability to effectively discriminate a variety of traffic patterns, anomalies, and protocols for unencrypted and encrypted traffic flows. Comparing with other methods, the performance of the proposed methodology showed remarkably better classification accuracy

INTRODUCTION: Neurofibromatosis Type 1 (NF1) or Von Recklinghausen’s disease, is a rare genetic disease characterized by multiple benign tumors of nerves and skin (neurofibromas), and skin decorations. However, it is multisystem and can affect each organ in the body, leading to debilitating effects. CLINICAL CASE: We present a case of an 18-year-old girl with NF1. The disease onset started in childhood at the age of 3 years with the appearance of hyperpigmented skin macules. Her mother also presented with multiple nodules on the face and trunk, and her little brother was reported to have disseminated macules. She had poor performance at school and delayed menses. The diagnosis of NF-1 was made, and a multidisciplinary team was involved in management of the patient CONCLUSION: Although genetic testing and confirmation are available, NF1 remains a clinical diagnosis and requires management by multidisciplinary team

INTRODUCTION: Although Treacher-Collins syndrome has to be considered a differential diagnosis in congenital craniofacial abnormalities, the clinical diagnosis and research related to it still present a gap, especially in African regions. Thus, this work aims at highlighting this syndrome's clinical features for raising medical awareness. CLINICAL CASE: We reviewed a 1-year-old patient referred to our clinical genetic unit at Rwanda military hospital, Kigali, Rwanda. Physical examinations indicated severe craniofacial abnormalities, including downward-sloping eyes, slight notching of the lower lids, small and underdeveloped eyebrow bones, vision problems, small outer ears, small and underdeveloped cheekbones, and jaw. Within the limits of the techniques used in our laboratory, the cytogenetic analysis revealed a normal karyotype, 46, XY. CONCLUSION: The patient was diagnosed with Treacher-Collins syndrome based on clinical manifestations of craniofacial features. Nevertheless, laboratory tests performed were limited to karyotyping and should not detect any gene defect. Long-term follow-up of the patient and his family was recommended. Further molecular analyses should be performed to identify causing genetic mutation mainly in the TCOF1, POLR1C, or POLR1D genes

Neurofibromatosis type 1 – A clinical case report and management review

INTRODUCTION: Neurofibromatosis Type 1 (NF1) or Von Recklinghausen’s disease, is a rare genetic disease characterized by multiple benign tumors of nerves and skin (neurofibromas), and skin decorations. However, it is multisystem and can affect each organ in the body, leading to debilitating effects. CLINICAL CASE: We present a case of an 18-year-old girl with NF1. The disease onset started in childhood at the age of 3 years with the appearance of hyperpigmented skin macules. Her mother also presented with multiple nodules on the face and trunk, and her little brother was reported to have disseminated macules. She had poor performance at school and delayed menses. The diagnosis of NF-1 was made, and a multidisciplinary team was involved in management of the patient CONCLUSION: Although genetic testing and confirmation are available, NF1 remains a clinical diagnosis and requires management by multidisciplinary tea