Medicine and Health Sciences Commons^™

Comparison Of Physical Activity Levels Among School-Age Adolescents In The Rural And Urban Areas Of District Swat Kpk, Pakistan- An Analytical Cross-Sectional Study, Imran Uddin

Theses & Dissertations

Background: Obesity and overweight represent significant global public health concerns. Young adolescents are in particular increasingly experiencing obesity and overweight due to their sedentary lifestyles, excessive electronic media use, and lack of physical activity (PA). This trend is linked to the development of non-communicable diseases in later life. Moreover, data regarding the lack of PA is available in Pakistan, but a gap exists in the comparative analysis of physical activity levels between rural and urban adolescents. Rural and urban areas exhibit distinctions in both geographical settings and technological advancements, potentially influencing the PA levels of their respective inhabitants.
Purpose: The …

Evaluating The Impact Of Routine Enteral Iron Fortification On Gastrointestinal Dysbiosis In Premature Infants, Matthew Van Ormer

Theses & Dissertations

The gastrointestinal microbiome in preterm infants bears significant influence on optimal outcomes – dysbiosis is shown to substantially increase the risk of the life-threatening necrotizing enterocolitis, whereas optimal microbiome composition improves nutrient digestion and immune function. Iron is a vital nutrient especially during the perinatal window of rapid hemoglobin production, tissue growth, and foundational neurological development. However, excess colonic iron exhibits potent oxidation capacity and alters the competitive environment of microbes – potentially facilitating the proliferation of pathological bacterial strains in the gut. Of note, breastfed preterm infants routinely receive iron fortification starting at 14 days of life and are …

Factors Associated With Clinically Significant Hyperbilirubinemia Among Abo-Incompatible Newborns At A Tertiary Care Hospital In Kenya., Wandera Ivy Mwenesi

Theses & Dissertations

Background: ABO incompatibility is one of the most common causes of immune-mediated neonatal jaundice. It occurs in approximately 20-25% of all pregnancies. Literature shows that 60- 80% of newborns will develop physiological jaundice within the first week of life. Globally, the incidence ranges from 10-41%. Early detection of newborns with ABO incompatibility-related jaundice can prevent the incidence of bilirubin-induced neurological dysfunction. Whereas there have been extensive published data on rhesus isoimmunization, very few studies have examined ABO incompatibility and isoimmunization. From the published literature, there has been no known study that has assessed risk factors for developing clinically significant jaundice …

Factors Influencing Uptake Of Human Papilloma Virus (Hpv) Vaccine Among Parents Of Adolescent Girls, Irene Nzisa Martin

Theses & Dissertations

Background: Cervical cancer is one of the most common preventable cancers causing morbidity and mortality in women especially in Sub-Saharan Africa. Three HPV vaccines have been approved for vaccination against HPV globally with Cervarix and Gardasil currently available in Kenya. Despite availability of free HPV vaccination and increased media campaigns the proportion of adolescent girls vaccinated against HPV remains low. Understanding the determinants of HPV vaccine uptake will inform strategies to improve the uptake at Aga Khan University Hospital, Nairobi.

Objectives: The aim was to identify the factors influencing HPV vaccine uptake among parents of adolescent girls. The secondary objective …

Knowledge And Practice Of Pediatricians In Kenya Regarding Helicobacter Pylori Infection In Children., Aura Mwende Nzinga

Theses & Dissertations

Background: Helicobacter pylori is one of the most common chronic bacterial infections. It affects more than half of the world’s population and is frequently associated with peptic ulcer disease, gastric carcinoma and other extra gastrointestinal manifestations. Globally, one third of the children are infected with the highest burdens observed in low and middle income countries. In Kenya the prevalence stands at 87% among school going children and 50% in children under three years.

Justification: Studies in high income countries suggest poor knowledge and practice amongst physicians with limited data from Africa. There exists conflicting information regarding the pathogenic role and …

Prevalence And Factors Associated With Undernutrition Among Children With Congenital Heart Disease At Three Tertiary Hospitals In Nairobi, Kenya., Shamsa Yahya

Theses & Dissertations

Background: Congenital heart disease (CHD) is the commonest birth defect. Children with CHD have a high burden of undernutrition and its consequences. Some of the factors that are associated with undernutrition in children with CHD include the type and complexity of the heart defect, associated pulmonary hypertension, late diagnosis, timing of surgical correction, low socioeconomic status, lack of adequate nutritional support, associated genetic conditions and the presence of other clinical comorbidities.

Justification: Although these factors are well defined, they vary geographically in their distribution and extent to which they influence the level of undernutrition. This limits the extrapolation of findings …

Single Oral Or Single Intramuscular Dose Of Vitamin D In The Treatment Of Vitamin D Deficiency In Children At Aga Khan University Hospital, Nairobi: A Randomized Controlled Trial, Winfred Mwikali Ndaka

Theses & Dissertations

Background: Vitamin D deficiency is a global health concern and plays an important role in bone health and many chronic non-communicable diseases. Vitamin D deficiency in children is associated with short stature, underdevelopment, respiratory infections and many other features that increase the risk of childhood complications. The prevalence of vitamin D deficiency in Kenya among children is high. Treatment with daily oral vitamin D is associated with poor compliance. While a single high intramuscular dose vitamin D offers an alternative strategy, it is however, associated with injection site pain and its absorption is dependent on the patient’s peripheral circulation. Various …

Renal Angina Index As A Predictor Of Acute Kidney Injury In Critically Ill Children, Athul Shelly Kooliyath

Theses & Dissertations

Background: Acute kidney injury is associated with increased morbidity and mortality in hospitalized children. In the critically ill,DR WILLIAM M MACHARIA acute kidney injury (AKI) is prevalent and difficult to diagnose. Using conventional methods, AKI is often missed thus delaying the diagnosis up to 48 hours after initial injury. Though some biomarkers that identify AKI early have been identified, they may still be insufficient due to prohibitive costs. Renal angina index is used to identify ongoing renal injury. It is a product of the clinical state and the estimated glomerular filtration rate (eGFR) of a patient during admission to a …

Post-Transplant Hepatic Graft Fibrosis In Pediatric Liver-Inclusive Transplant Recipients, Hanh D. Vo

Theses & Dissertations

Hepatic graft fibrosis is a common histologic finding following pediatric liver transplant (LT) that may affect the long-term graft outcome. Hence, it is essential to identify hepatic graft fibrosis at a stage where fibrosis is not yet clinically apparent but has the potential for progression to initiate appropriate intervention and prevent its progression. Liver biopsy is the gold standard for fibrosis staging, but it is invasive, requires general anesthesia in children, and has potential complications. Our long-term goal is to implement non-invasive tests to assess and monitor the progression of hepatic graft fibrosis in liver-inclusive transplant children. The work presented …

Glad To Be Out. I Was Running Out Of Womb: A Study Of Omega-6 And Omega-3 Fatty Acid Metabolites At Delivery And Their Relationship To Infant Growth, Prematurity, And Admission To The Neonatal Intensive Care Unit, Maranda Thompson

Theses & Dissertations

Normal pregnancy relies on inflammation for implantation, placentation, and parturition, but uncontrolled it can lead to poor infant outcomes. Maternal diet is one modifiable factor that can impact inflammation. Omega-3 and omega-6 fatty acids have been shown to be metabolized into bioactive metabolites that effect inflammation. The presence and importance of these metabolites at the time of delivery are not well understood. Therefore, the purpose of this dissertation was to first quantify omega-3 and omega-6 metabolites in maternal plasma, cord plasma, and placental tissue. Then the relationships between metabolites and infant outcomes, including birth weight percentile, length percentile, head circumferences …

The Ecology Of Mental Health And The Impact Of Barriers On Mental Health Service Utilization, Alisha Aggarwal

Theses & Dissertations

Mental health has emerged as a major public health concern in recent times with several disparities and barriers related to adequate health service utilization. Different age groups experience diverse symptoms and face distinct barriers in accessing and utilizing healthcare. Policies like Mental Health Parity and Addiction Equity Act and the Patient Protection and Affordable Care Act were launched to improve insurance coverage and delivery of mental health services. However, a large gap of unmet needs exists for adequate mental health service utilization in the country. This dissertation aims to describe the financial and non-financial barriers to mental health service utilization …

Proof Of Concept: The Use Of Renal Biomarkers In Critically Ill Pediatric Patients For Therapeutic Drug Monitoring, Christopher Lee Shaffer

Theses & Dissertations

Acute kidney injury (AKI) is a serious and common complication in critically ill pediatric patients. The incidence of pediatric AKI continues to increase, especially in patients who undergo surgical correction of congenital heart defects. Serum creatinine and urine output are the most commonly used tools to assess renal function, with international guidelines standardizing AKI-definitions based upon these parameters. However, changes in serum creatinine can occur 24 hours or later after a renal insult event, delaying the diagnosis and potential interventions to reverse injury. It is critical to identify endogenous renal biomarkers within the pediatric population that are both timely and …

Health-Related Quality Of Life Of Children With Gastroesophageal Reflux Disease After Nissen Fundoplication And Gastrostomy Tube Insertion, Felix Wafula Musibi

Theses & Dissertations

Background: Gastroesophageal reflux disease (GERD) negatively impacts the health-related quality of life (HRQoL). Nissen fundoplication is done when medical treatment fails. Goal of therapy is to eliminate symptoms and improve quality of life.

Justification: HRQoL is a key indicator that we can use to evaluate the impact of our interventions so that we can make evidence-based decisions and advice our patients appropriately based on the outcomes of these interventions.

Objectives: The primary objective was to assess the HRQoL of children with GERD after Nissen fundoplication alone or Nissen fundoplication and gastrostomy tube insertion.

Methods: Design- Observational …

The Prevalence Of Albuminuria In Children With Chronic Kidney Disease In Two Tertiary Hospitals In Nairobi, Kenya, Mercy Wambui Githumbi

Theses & Dissertations

Background: Chronic kidney disease (CKD) is a major health problem globally. In Africa, the burden in children remains unclear and is often reported as low. In developing countries, it is mainly due to secondary causes and nephrotic syndrome, while in the developed countries it is mainly due to congenital anomalies of kidney and urinary tract (CAKUT). The Kidney Disease: Improving Global Outcomes (KDIGO) defines CKD and utilises glomerular filtration rate (GFR) and albuminuria as an additional factor. Albuminuria is significant in prognostication of individuals with CKD as it is a marker of kidney damage. It is correlated with outcomes including …

Clinicians’ Perceptions Of Pediatric Assent For Invasive Bedside Procedures At Three Tertiary Referral Hospitals In Nairobi County, Kenya., Grace Petrine Oyito Omondi

Theses & Dissertations

Background: The medical profession is built on the foundation of morals and ethics guided by principles of beneficence, non- maleficence, autonomy and justice. In order for an individual to be sufficiently autonomous, the value of information is indispensable. The information allows the patient to make an informed decision concerning their healthcare. The patient then gives an informed consent or assent as is applicable to the pediatric population. Majority of the studies surrounding pediatric assent revolves around obtaining it for research. There is a paucity of literature in regards to pediatric assent for clinical treatment more so as regards clinicians’ …

Reach, Effectiveness, Adoption, And Maintenance Of Mobile Electronic Clinical Decision Support Tools Deployed As Part Of National Quality Improvement Projects, Ellen K. Kerns

Theses & Dissertations

Electronic clinical decision support (ECDS) tools are often developed within quality improvement (QI) projects to increase adherence with the latest clinical practice guidelines. However, the potential reach and maintenance of ECDS use beyond the time and location of their associated project are very limited. Deploying ECDS using a mobile app (mECDS) has shown the potential to be a viable method of overcoming these limitations. However, it is unclear what pattern the reach and adoption of such a tool might follow and what effect this use has on clinical practice. Our team developed an app which contained two different mECDS tools …

Validity And Acceptability Of The Kiswahili-Paediatric Gait, Arms, Legs And Spine (Pgals) Screening Tool At A Tertiary Referral Hospital In Kenya, Jacqueline Evarist Kawishe

Theses & Dissertations

Background: A common reason implicated in the severity of presentation and mortality resulting from rheumatic conditions among children is the delayed presentation to a paediatric rheumatologist. Evidence suggests low-quality paediatric musculoskeletal clinical skills could be a cause for diagnostic delay and history suggestive of musculoskeletal disease alone has poor sensitivity in detecting paediatric rheumatic conditions. The paediatric gait, arms, legs, and spine (pGALS) musculoskeletal screening tool was developed to encourage early detection of paediatric rheumatic conditions. It has been validated and translated successfully in other countries. Kiswahili serves as a national language in several East African countries. Translating and …

Parental Knowledge And Attitudes Towards Food Allergy, Namuli Jane Francis

Theses & Dissertations

Background: Food allergy and other allergen-induced diseases are an increasing problem globally. This has been documented in studies done in Western countries as well as some parts of Africa. The prevalence of food allergy is highest during the first 2 years of life. For allergen-induced illness, avoidance of triggers and prevention of fatal reactions are the mainstay of treatment. Unnecessary withdrawal of suspected protein-rich foods at a time that is critical for children’s growth may lead to malnutrition and its related complications. This study aimed to understand the gaps in knowledge and misconceptions about food allergy among parents as …

Development Of An Lc-Esi-Ms/Ms Method For Determination Of A Novel Pyrrolomycin (Mp-1) And Application To Pre-Clinical Adme Studies, Wafaa N. Aldhafiri

Theses & Dissertations

A rapid, selective, and sensitive liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) method was developed and validated for quantitation of a novel Pyrrolomycin (MP-1) in mouse plasma. MP-1 was extracted from plasma utilizing a structural analog (PL-3) as the internal standard (IS). Analyte separation was achieved using a Waters Acquity UPLC®BEH C18 column (1.7 µm, 100 x 2.1 mm) protected with Acquity UPLC C18 guard column. Mobile phase consisted of 0.1% acetic acid in water (10%) and methanol (90%) at a total flow rate of 0.25 mL/min. The mass spectrometer was operated at unit resolution in the multiple reaction …

Evaluation For Association Between Maternal Microbiota And Development Of Necrotizing Enterocolitis Or Gram-Negative Bacteremia In Preterm Infants, Mei Chi Quek

Theses & Dissertations

Background: Preterm birth is the leading cause of perinatal morbidity and mortality worldwide. There is a need for a better understanding of the correlation of vaginal microbiota with adverse preterm outcomes. Our study aimed to explore how the vaginal microbiota influences the outcome of the preterm infants, determine whether fecal microbiota in premature infants differs from that in term infants, and explore the microbiota pattern in preterm neonates who received multiple antibiotics.

Method: A prospective cohort design was used to enroll 33 women admitted in spontaneous labor between 25 to 36 weeks, and 33 controls matched for age and parity …

Serum 25-Hydroxyvitamin D Levels In Children With Mild And Severe Atopic Asthma, Rhoda Ndinda Masaku

Theses & Dissertations

Background: Asthma is a chronic respiratory illness affecting an estimated 334 million people worldwide, including 14% of the total pediatric population. It results in significant morbidity, and therefore the etiologies and risk factors associated with asthma are of great interest. Serum 25- hydroxyvitamin D (25(OH)D) has substantial immunomodulatory effects on the innate immune system. It reduces the probability of viral respiratory infections and asthma exacerbations by potentiating the anti-inflammatory action of corticosteroids.

Objectives: This study was conducted to determine if there was a difference in serum 25-hydroxyvitamin D levels between children with mild and severe atopic asthma and explored the …

Complementary Feeding Practices And Their Determinants In Infants And Young Children On Follow Up At A Private Tertiary Hospital In Nairobi, Catherine Muthoni

Theses & Dissertations

Background: More than a third of all deaths in children under five years of age worldwide, are linked to maternal and child under-nutrition. Appropriate complementary feeding is one of the interventions with the greatest potential for reduction of nutrition-related diseases and mortalities, yet uptake of the recommended World Health Organisation (WHO) infant and young child feeding practices in Kenya remains low. Despite provision of nutrition education at Aga Khan University Hospital- Nairobi (AKUH-N), both growth faltering and over-weight trends have been observed, pointing to both under- and over-nutrition.

Objectives: This study investigated caregivers' knowledge , attitude and practice (KAP) of …

Knowledge, Attitudes, Practices And Barriers In Use Of Evidence-Based Medicine Among Resident Physicians In Aga Khan University Hospital, Nairobi., Megha Unadkat

Theses & Dissertations

Background: Evidence based medicine (EBM) helps clinicians to integrate latest research evidence into their daily clinical practice. There is a need for all healthcare professions to adopt it in order to provide scientific, safe, efficient and most cost-effective care. Postgraduate residents are at the frontline of healthcare delivery and all medical institutions should strive to produce practitioners of EBM. Studies have shown that physicians are still struggling to adapt to this paradigm shift in the practice of medicine, especially in Sub Saharan Africa (SSA). However, very few studies have been done in SSA and none in East Africa to explore …

Association Between Systemic Inflammation And Nutritional Compounds In Maternal-Infant Dyads, Jessica N. Snowden

Theses & Dissertations

Many events during pregnancy and early infancy can affect infant brain development. Inflammation during pregnancy, around delivery and during early infancy appears to adversely affect infant brain development. As the brain is rapidly growing and developing from conception through early childhood, it is particularly vulnerable during this time to inflammatory insults, which may be exacerbated or ameliorated by nutritional factors. Inflammatory compounds, as well as many nutritional compounds, can be either pro- or anti-inflammatory. These compounds are of particular importance in preterm infants, who are at risk of deficiency in anti-inflammatory micronutrients typically stored as a result of prenatal maternal …

Quantification Of Lutein + Zeaxanthin Presence In Human Placenta And Correlations With Blood Levels And Maternal Dietary Intake, Melissa Thoene

Theses & Dissertations

Lutein + zeaxanthin are carotenoids most recognized in eye health, but less is known about their status and transfer during pregnancy. While quantified in maternal and umbilical cord blood, they have never been analyzed in placenta tissue. Therefore, the purpose of this dissertation is to firstly quantify lutein + zeaxanthin concentrations in human placenta and to later correlate with levels in maternal dietary intake, maternal serum, and umbilical cord blood. Proportions of lutein + zeaxanthin will also be compared within diet, placenta, maternal serum, and umbilical cord blood among additionally analyzed carotenoids including lycopene, β-cryptoxanthin, α-carotene, and β-carotene. Lutein + …

Factors Associated With Substance Use Among Adolescents Living With Hiv In Kenya, Wambui Kagucia

Theses & Dissertations

Background: Substance use is rife in our society and adolescents (10-19 years) do face this problem during this vulnerable period of growth and development. Use of substances is known to be associated with poor health choices and risky sexual behaviour. Since the advent of antiretroviral therapy (ART), significant progress has been made with reduced rates of mother to child transmission (MTCT) and a general downward global trend in acquired immunodeficiency disease (AIDS) related mortalities. However, human immunodeficiency virus (HIV)/AIDS is still a leading cause of mortality in adolescents living in Sub Saharan Africa, with an upward trend in new HIV …

Factors Associated With Development Of Retinopathy Of Prematurity In Three Private Tertiary Hospitals In Kenya, Annette A. Metho

Theses & Dissertations

Introduction: Retinopathy of prematurity (ROP) is a condition that affects mainly premature infants. It’s characterized by abnormal retinal vascular growth which in its most severe form can result in blindness due to retinal detachment, and in less severe untreated forms, can result in marked visual impairment. Retinopathy of prematurity is one of the preventable causes of blindness.

Research Question: What are the factors associated with development of retinopathy of prematurity in screened preterm infants in three private tertiary hospitals in Kenya?

Study Objectives: This study aimed to identify factors associated with development of retinopathy of prematurity in screened preterm infants …

Factors Associated With Late Diagnosis Of Congenital Heart Disease In Kenya, Mercy Chebet Ng’Eno-Owino

Theses & Dissertations

Introduction: Congenital heart disease (CHD) is the most common congenital anomaly (one-third of all congenital anomalies) with a global birth prevalence of 8/1,000 live births. About 30-50% of all CHD can be categorized as those that will result in death or long-term disability if surgery or catheter-based intervention is not done within one year (major CHD) or four weeks (critical CHD). Early diagnosis of CHD with subsequent prompt surgical/catheter-based interventions has been associated with better outcomes. In this study, late diagnosis of CHD is defined as cases of CHD diagnosed after the first year of life. Knowledge on presentations of …

Bedtime Fading With Response Cost For Treatment Of Sleep Disturbances In Children With Autism Spectrum Disorder, Sela Ann Sanberg

Theses & Dissertations

As many as 82% of children with Autism Spectrum Disorders (ASD) experience numerous chronic sleep-related problems and at a much higher frequency and severity than their typically developing peers. Behavioral treatments are considered best practice and first-line treatment to address sleep problems. These treatments tend to address one specific sleep-related behavior at a time. Bedtime Fading with Response Cost (BFRC) is a promising intervention that targets a multitude of sleep problems concurrently and has yet to be replicated by more than one investigative team in the home setting with children on the autism spectrum. This study evaluated the effectiveness of …

Prevalence Of Cytotoxin Associated Gene-A Positive Strains In Children With Symptomatic H. Pylori Infection, Patricia Mumbi Muriithi

Theses & Dissertations

Introduction: Helicobacter pylori is a common bacterial infection in humans with early acquisition in childhood. It is adapted to the gastric environment and has been associated with chronic active gastritis, peptic ulcers, atrophic gastritis, gastric adenocarcinoma and mucosa associated lymphoid tissue (MALT) lymphoma. H. pylori strains bearing the Cytotoxin Associated Gene-A (CagA) gene have enhanced pathogenicity and have been strongly linked with increased risk for gastric carcinoma in adulthood.

Objectives: The primary objective was to determine the prevalence of CagA positive strains in children with H. pylori infection. The secondary objectives were to compare CagA status and endoscopy findings and …