Glauber Cruz

Chronological Factors of the Process of Donation and Classification of Corneal Tissue

INTRODUCTION The quality of corneal tissue is influenced by several factors inherent to the recipient, donor, donation process, and transplantation that may primarily or secondarily interfere in the survival of a corneal graft. OBJECTIVE The objective of this study was to identify the factors inherent to the donation process, specifically related to the harvesting and processing of tissue and to the donor, that may interfere with the quality of corneal tissue. MATERIALS AND METHODS This was a cross-sectional, descriptive, and analytical study carried out from January to April 2015 at the Onofre Lopes University Hospital, Natal/RN, Brazil. A survey of the keratoplasties performed between the years 2010 and 2014 was carried out, totaling 258 donated corneas. RESULTS The mean age of donors was 42.08 years, ranging from 2-80 years. As for quality, 64.45% of the corneas were classified as good, 23.05% as regular, 11.33% as poor, and 1.17% as excellent. The mean time between death and preservation was approximately 7 hours and 15 minutes, and the mean time elapsed until use was 10 days after immersion in preservation medium. DISCUSSION AND CONCLUSIONS Factors inherent in the donation process that may interfere with the quality of the corneal graft correspond to factors of a chronological nature: donor age and time elapsed between death and preservation of the graft.

Epidemiologic Profile of Patients Transplanted With Hematopoietic Stem Cells in a Reference Service in the State of Rio Grande do Norte, Brazil

BACKGROUND Hematopoietic stem cell transplantation (HSCT) consists of the intravenous infusion of healthy hematopoietic stem cells to restore the medullary and immunologic function of patients affected by a series of hematologic, oncologic, immunologic, malignant and nonmalignant inherited or acquired diseases, with the possibility of cure or increase of disease-free survival. OBJECTIVE To characterize the epidemiologic profile and the cases of death of patients who underwent HSCT. METHODS This is a cohort quantitative study, nested with a retrospective, descriptive, and analytical study of a hospital-based cohort that included the patients who underwent HSCT at a referral service in the state of Rio Grande do Norte, a region of northeastern Brazil. RESULTS There was a slight male prevalence (52.94%), the age of the patients ranged from 2 to 73 years old, 18.38% were brown, 47.06% were married, 15.07% were students, 78.31% had a diagnosis of multiple myeloma, 93.38% developed gastrointestinal toxicities, all patients received chemotherapeutic treatment, 54.78% had allogeneic HSCT, and the cause of the most recorded deaths was septic shock (48.19%). CONCLUSIONS This study showed relevant scientific evidence on the clinical and epidemiologic profile of patients who underwent HSCT. In general, sociodemographic data are similar to national and international research results.