One hundred eighty infants with oxygen therapy who were under 2,500gm birth weight or under 37 weeks of gestational age, were examined between January 1990 and November 1992. We performed clnical analysis and results were as follows. 1) Fifty six infants (31.1%) were diagnosed as retinopathy of prematurity. 2) The first examination was performed at 2.5 weeks of life on average, and the retinopathy of prematurity was diagnosed at 3.8 weeks on average. 3) The incidence of retinopathy of prematurity was highly associated with low birth weight (< or =1,890 gm), low gestational age ( < or =33.1 weeks), and high oxygen concentration with long duration (FiO2> or =0.4 over 1 week)(P<0.005). 4) Other associated risk factors were idiopathic respiratory distress syndrome, anemia, neonatal hypoxia and sepsis.
Anemia, Neonatal ; Anoxia ; Birth Weight ; Gestational Age ; Humans ; Incidence ; Infant ; Infant, Low Birth Weight ; Infant, Newborn ; Oxygen ; Retinopathy of Prematurity* ; Risk Factors ; Sepsis

PURPOSE: To evaluate the surgical results of segmental scleral buckling procedures in pseudophakic retinal detachments. METHODS: We retrospectively analyzed the surgical results of 35 patients (35 eyes) undergoing only segmental scleral buckling procedures in pseudophakic retinal detachments, who had been postoperatively followed up 6 months or longer. RESULTS: The average age of patients was 58.4 +/- 14.8 and twenty-five of the 35 patients were male. Posterior capsule was ruptured in 14 eyes, and among the 14, 5 eyes had vitreous prolapse. The primary success rate of segmental scleral buckling procedures was 100% (21/21 eyes) in intact posterior capsules, and 64.3% (9/14 eyes) in ruptured posterior capsules. The causes of failure were proliferative vitreoretinopathy (2 eyes) and failure to close the retinal breaks (3 eyes). CONCLUSIONS: We suggest that segmental scleral buckling procedure may be an effective method for the management of retinal detachments in pseudophakia if without posterior capsule ruptures.
Capsules ; Humans ; Male ; Prolapse ; Pseudophakia ; Retinal Detachment* ; Retinal Perforations ; Retinaldehyde* ; Retrospective Studies ; Rupture ; Scleral Buckling* ; Vitreoretinopathy, Proliferative

No abstract available.
Hair ; Humans ; Piedra ; Scalp ; Trichosporon

In the therapeutic or the nutritional aspects, Zn2+ has been used as a supplement in a variety of drugs. Most of divalent or trivalent cations affect ion channels in the cell membranes of various organs. In particular, Zn2+ has been regarded as a potassium (K+) channel blocker in the field of electrophysiology. ATP-sensitive K+ (KATP) channel, which is a kind of inward rectifier K+ channel, resides in the cell membrane of pancreatic beta cells and plays an important role in glucose-induced insulin secretion. The glucose increases intracellular ATP concentration, and this inhibits KATP channels. The inhibition of KATP channels activity depolarizes the cell, and subsequently, insulin is released by Ca2+ influx through the voltage- gated Ca2+ channels. Here, we demonstrate that KATP channels in the pancreatic beta cells are also the targets of extracellular Zn2+ blockade and its blockade is dependent on intracellular ATP concentration. This may be a compensatory mechanism preventing the oversecretion of insulin from the Pancreatic beta cells triggered by Zn2+ intake in a physiologically fasting condition.
Adenosine Triphosphate* ; Cations ; Cell Membrane ; Electrophysiology ; Fasting ; Glucose ; Insulin ; Insulin-Secreting Cells* ; Ion Channels ; KATP Channels* ; Potassium ; Potassium Channels, Inwardly Rectifying

No abstract available.
Nevus

Neurocutaneous melanosis (NCM) is a rare congenital syndrome consisting of benign or malignant melanotic tumors of the central nervous system with large or numerous cutaneous melanocytic nevi. The Dandy-Walker complex (DWC) is characterized by an enlarged posterior fossa with high insertion of the tentorium, hypoplasia or aplasia of the cerebellar vermis, and cystic dilatation of the fourth ventricle. These each two conditions are rare, but NCM associated with DWC is even more rare. Most patients of NCM with DWC present neurological symptoms early in life such as intracranial hemorrhage, hydrocephalus, and malignant transformation of the melanocytes. We report a 14-year-old male patient who was finally diagnosed as NCM in association with DWC with extensive intracerebral and spinal cord involvement.
Adolescent ; Central Nervous System ; Dandy-Walker Syndrome* ; Dilatation ; Fourth Ventricle ; Humans ; Hydrocephalus ; Intracranial Hemorrhages ; Male ; Melanocytes ; Melanoma ; Melanosis* ; Neurocutaneous Syndromes ; Nevus, Pigmented ; Spinal Cord*

No abstract available.
Thromboangiitis Obliterans*

Acrodermatitis enteropathica(AE) which starts in early infancy after weaning is a rare hereditary chronic disorder of zinc absorption. AE is characterized by alopecia, diarrhea and skin lesions localized to periorificial areas and acrally on the extremities. However, recent reports presented Transient Symptomatic Zinc Deficiency(TSZD) in preterm infants. TSZD is clinically similar to AE and skin lesions rapidly heals after zinc supplementation. When the treatment was withheld, no recurrence was seen. We experienced a TSZD case in a cow's milk fed, preterm infant, so We report it with a brief review of literature.
Absorption ; Acrodermatitis ; Alopecia ; Diarrhea ; Extremities ; Humans ; Infant* ; Infant, Newborn ; Infant, Premature* ; Milk* ; Recurrence ; Skin ; Weaning ; Zinc*

No abstract available.
Onychomycosis

No abstract available.
Candida ; Onychomycosis