Medicine and Health Sciences Commons^™

Development Of Fluorescent Hyaluronic Acid Nanoparticles For Intraoperative Tumor Detection, Nicholas E. Wojtynek

Theses & Dissertations

Surgical resection remains to be the primary treatment for the majority of solid tumors, including breast cancer. The complete removal of the primary tumor, local metastases, and metastatic lymph nodes dramatically improve a patient’s treatment outcome and prognosis. Nevertheless, surgeons are limited to tactile and visual cues in distinguishing malignant and healthy tissue. This can result in a positive surgical margin (PSM), which occurs when tumor goes undetected and is left behind in the surgical cavity. PSMs decreases a patient’s prognosis and necessitate additional treatment in the form of surgery, radiation, and chemotherapy. An emerging imaging modality, known as fluorescence-guided …

Local Anaesthetic Wound Infusion Versus Thoracic Epidural Analgesia For Post-Operative Pain Control Following Elective Laparotomy: A Randomised Controlled Trial, Daniel Gathege Mwangi

Theses & Dissertations

Background: Post-operative pain control is an important pillar in enhanced recovery after surgery. There is a paucity of data that compares efficacy of pain control between continuous local anaesthetic wound infusion and thoracic epidural analgesia in elective laparotomy patients

Objective: To evaluate pain control between continuous local anaesthetic wound infusion and thoracic epidural analgesia in elective laparotomy patients.

Design: A randomised, single-blind, controlled clinical trial.

Setting: Aga Khan University Hospital, Nairobi, Kenya.

Population: Patients undergoing elective laparotomy.

Methods: Thirty eight patients scheduled for elective laparotomy were randomized into two equal groups to receive either continuous …

The Quality Of Life Of Patients With Early Breast Cancer And Their Partners One Year After Breast Conserving Surgery Versus Modified Radical Mastectomy: A Single Centre Five Year Review, Senoga Andrew

Theses & Dissertations

Background: Breast cancer accounts for the highest incidence rate (40.3/100000) and fourth highest mortality rate (17.8/100000) among cancers in Kenya. Forty percent of breast cancer cases in Kenya are early breast cancer and this is will increase with scaled up awareness campaigns and screening. Breast conserving surgery (BCS) followed by radiotherapy (BCT) and modified radical mastectomy (MRM) are the commonest forms of surgical techniques utilized in treatment of early breast cancer with similar overall survival and recurrence rates. These treatments impact variably on the quality of life of the patients and their spouses who are their immediate emotional and social …

Referral Patterns Affecting Age At Orchidopexy For Undescended Testis At A Tertiary Hospital In Nairobi., Muthua Ken Njoroge

Theses & Dissertations

BACKGROUND: Undescended Testis is the most common urological congenital anomaly with significant burden of disease especially in our local context. Management relies on early diagnosis, in the perinatal period, and prompt referral to an appropriate surgical unit. Spontaneous descent, while possible, doesn’t occur beyond 6 months and thus surveillance should not proceed beyond this age. Current guidelines recommend surveillance up to 6 months, referral by 9 months and, most importantly, orchidopexy by 1 year of age. Despite these clear guidelines, achieving them has proven difficult globally with low rates of orchidopexy by 1 year. The most common cited cause has …

Prevalence And Factors Associated To Incidental Prostate Carcinoma Among Patients Undergoing Turp For Benign Prostatic Enlargement., Isaac Herman Mawalla

Theses & Dissertations

Background: Prostate carcinoma carries higher morbidity and mortality when diagnosed late. Prostate cancer screening is paramount, however, there are no specific clinical signs for early-stage prostate cancer. As an independent variable, prostate-specific antigen is an established predictor of cancer. Incidental prostate cancer is detected by histological examination of resected biopsy tissue that had been previously diagnosed as benign. In the current PSA-use era the prevalence of incidental prostate cancer ranges from 1.4 to 13%. The prevalence in Tanzania as published by Gunda et al was 21.71%. This is alarmingly high. However, in his study, patients with high prostate-specific antigens were …

Breast Cancer Recurrence Rate In Patients Treated For Early Breast Cancer, Cecilia Munguti

Theses & Dissertations

Background: Breast cancer, the leading cause of cancer in Kenya among women, has a prevalence of 57.1 per 100,000 women and an annual mortality of 3.7 per 100,000. Early breast cancer is curable, but has a residual risk of recurrence of 10.4% in the first 5 years. Fifty percent of the recurrences occur after the first 5 years after diagnosis. Recurrent breast cancer is associated with poorer prognosis and higher mortality rates.

Objectives: The primary objective was to determine the breast cancer recurrence rates for women managed for DCIS and early breast cancer at Aga Khan University Hospital. Secondary objectives …

Perceptions Of Surgeons On Surgical Antibiotic Prophylaxis Use At Aga Khan Hospital, Dar Es Salaam., Elizabeth Elibariki Mmari

Theses & Dissertations

Introduction: Surgical site infections are a major cause of morbidity and mortality among operated patients. The use of antibiotic prophylaxis in prevention and reduction of incidence of surgical site infection is widespread. In spite of the accessibility of universal and national guidelines for surgical prophylaxis, recent studies surveying the present routine of prophylaxis have demonstrated overutilization of a wide range antibacterial medications for a single patient. Few studies have shown qualitatively factors influencing this, and perceptions of surgeons on surgical antibiotic prophylaxis use. Unfortunately, none of these studies have been done in Tanzania.

Objective: To describe the perceptions of surgeons …

Cyto-Histological Correlation Of Thyroid Cytology And Associated Adverse Surgical Outcomes At Aga Khan University Hospital, Nairobi., Moses Barasa

Theses & Dissertations

Background: Solitary thyroid nodules are commonly encountered endocrine disorders in surgical practice. Fine Needle Aspiration Cytology (FNAC) is a minimally invasive, accurate and cost-effective diagnostic tool that provides basis for surgical decisions-making in thyroid lesions management. Thus, it’s imperative that such a test should have high diagnostic accuracy in order to avoid under or over-treatment arising from false negative or positive results respectively. Studies from the African region, compared to the developed world have reported higher thyroid cyto-histologic discrepancy.

Objective: To determine the diagnostic accuracy and adverse surgical outcome of discrepant thyroid cytology.

Methods: Retrospective cross-sectional analytical study conducted at …