Publications by authors named "David Nyamu"

Background: Despite the advancement of modern treatment approaches, several studies indicated a diminished health-related quality of life (HRQoL) in patients with gastrointestinal cancer. However, there is insufficient data about the HRQoL of gastrointestinal cancer patients in Kenya.

Aims: The study aimed to investigate HRQoL and its determinants in gastrointestinal cancer patients at Kenyatta National Hospital.

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Introduction: Cancer therapy has remarkable potential for drug-related problems due to the high cytotoxicity and narrow therapeutic index of most anti-neoplastic regimens. However, there is a lack of comprehensive studies on drug-related problems in patients with gastrointestinal cancer in Kenya. Therefore, the present study aimed to investigate the prevalence, types and predictors of drug-related problems among gastrointestinal cancer patients at Kenyatta National Hospital.

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Introduction: The overall 5-year survival rate for esophageal cancer patients in low- and middle-income countries was reported to be low, despite the availability of advanced treatments. Thus, this study aimed to assess determinants of survival outcomes among esophageal cancer patients in Kenya.

Methods: A retrospective cohort study was employed among 299 adult esophageal cancer patients.

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Background: Colorectal cancer is a growing burden in Africa. However, survival for patients with colorectal cancer remains low in sub-Saharan African countries, with the poorest survival, particularly at a late stage at diagnosis. Despite this, there is a paucity of sufficient data about the survival outcomes of colorectal cancer patients in Kenya.

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Introduction: The incidence of gastrointestinal malignancies in Kenya is increasing, although there is a paucity of data on survival outcomes among gastric cancer patients. Hence, this study aimed to assess survival outcomes among adult gastric cancer patients at Kenyatta National Hospital.

Methods: A retrospective cohort study design was used to assess the survival outcomes among 247 gastric cancer patients.

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Objectives: Rational use of antibiotics implies appropriate choice of an antibiotic administered at correct dose, frequency, and duration using the most suitable route of administration. Irrational antibiotics use is associated with antimicrobial resistance, drug failure, and high mortality in the critical care units (CCUs). This study sought to establish rational use of antibiotics and determinants of clinical outcomes of patients admitted to the CCUs at the Kenyatta National Hospital (KNH).

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Introduction: optimal management of diabetes involves interplay between patients' understanding of their disease and medication adherence, which would eventually influence glycemic control. However, there is scant published literature on the interconnection of patient related factors that impact on optimal management of diabetes in resource-limited settings such as Kenya.

Methods: a hospital based cross-sectional survey involving 270 freely consenting adult diabetics investigated the interconnection between diabetes knowledge, medication adherence and glycemic control.

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Background: Colorectal cancer is the third most common form of cancer in males and the second in females globally. The ill-health due to cancer and use of multiple therapies may result in drug related problems and also affect the health-related quality of life of the patients.

Objective: To characterize drug therapy problems and health-related quality of life among patients with colorectal cancer at Kenyatta National Hospital.

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: Patients' profiles affect the outcome with warfarin; however, this data, and its implications, is scarce in resource-poor countries without access to pharmacogenetics or regular INR testing.: To characterize the profiles of patients on long-term warfarin therapy and subsequently use these to guide future anticoagulation management.: Cross-sectional study among 180 adult patients receiving warfarin therapy in at a leading referral hospital in Kenya.

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Objective: Antibiotics are essential with inappropriate use leading to antimicrobial resistance (AMR). Currently, little is known about antibiotic use among hospitals in Kenya, which is essential to tackle as part of the recent national action plan addressing rising AMR rates. Consequently, the objective was to overcome this gap in a leading referral hospital in Kenya.

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Background: Research has established the development of steroid-induced hyperglycemia as a glucometabolic side effect of high-dose prednisone therapy. Few studies, however, have demonstrated preventative measures that could effectively curtail this side effect in susceptible patients undergoing high-dose prednisone treatment.

Objective: To assess metformin's prophylactic effectiveness of prednisone-induced hyperglycemia among hematological cancer patients.

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: Tight blood pressure control retards the development of end-stage renal disease in hypertensive diabetic patients with chronic kidney disease. There is limited literature on blood pressure control among this patient population in a resource-limited setting. : A tertiary hospital-based cross-sectional study with 237 hypertensive diabetic patients with chronic kidney disease was conducted.

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Background: Chronic kidney disease (CKD) patients are prone to medication-related problems (MRPs). Few studies address the clinical relevance of MRPs among CKD patients in sub-Saharan Africa.

Objective: To investigate the frequency and predictors of MRPs among adult CKD patients treated at a tertiary care facility in an urban sub-Saharan setting.

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Background: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous reactions. There is scant literature on the characteristics and causes of these conditions in Kenyatta National Hospital.

Objective: The aim of this study was to determine the prevalence, risk factors, and etiologies of SJS/TEN among patients admitted to Kenyatta National Hospital.

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