Purpose : This study determined the prenatal and postnatal factors associated with complications and prognosis in premature infants with leukemoid reaction. Methods : We retrospectively reviewed the medical records of premature infants with gestational ages <37 weeks and low birth weights (<2,500 g) who were admitted immediately after birth to the neonatal intensive care unit at the Dongguk University Ilsan Hospital between June 2005 and July 2006. A leukemoid reaction was defined as an absolute neutrophil count (ANC) >30,000/$mm^3$. The infants who had leukemoid reaction comprised the study group, while the remainder of infants made up the control group. The relationships between maternal and neonatal variables and ANC were studied. Results : Leukemoid reaction was detected in 3.1% of the study infants (8 of 252). Factors more frequently associated with infants with leukemoid reaction were as follows: maternal chorioamnionitis, high levels of maternal and infant C-reactive protein, gestational age <37 weeks, birth weight <2,500 g, low Apgar score, prolonged ventilator support, and a high incidence of bronchopulmonary dysplasia (BPD). However, there were no significant differences with respect to the antenatal usage of steroids, the incidences of patent ductus arteriosus, necrotizing enterocolitis, intraventricular hemorrhage, retinopathy of prematurity, and mortality between the two groups. Conclusion : Leukemoid reaction in premature infants was associated with chorioamnionitis and high levels of serum C-reactive protein in mothers and infants, and BPD in infants. These findings suggest that leukemoid reaction is secondary to inflammation caused by infection.
Purpose : This study examined the occurrence of oxygen desaturation events during nutritive sucking in premature infants with bronchopulmonary dysplasia (BPD) and its effects on feeding and growth outcomes until 4 months of corrected age (CA). Methods : Thirty-four premature infants with BPD free from major cardiac, gastrointestinal, respiratory anomalies were included. By reviewing medical records, clinical characteristics, feeding conditions at 36 weeks of postmenstrual age (PMA), we focused on oxygen desaturation, and short-term outcomes in 14 infants with no or mild desaturation (group A) and in 20 infants with moderate or severe desaturation (group B). Results : Group B had lower birth weight and shorter gestational age at birth, longer duration of hospitalization, was discharged at higher weeks of PMA, and needed ventilatory assist and oxygen supplementation longer than group A (P<0.05). Group B started nutritive sucking later, with a greater decrease in $SpO_2$ during sucking, being more indicative of feeding problems at 40 weeks of PMA, but not at 4 months of CA. Percent of infant needing oxygen supplementation and percent of infants with growth failure were not different between groups at 40 weeks of PMA and 4 months of CA. Body weight and growth velocity differences noted at 40 weeks of PMA became insignificant at 4 months of CA. Conclusion : The severity of desaturation during nutritive sucking in premature infants with BPD influenced the infant's feeding and growth at 40 weeks of PMA. However, it disappeared at 4 months of CA.
Purpose: The study was to assess I-123-N-(3-iodopropen-2-yl)-2[beta]-carbomethoxy-3[beta]-(4-cholorophenyl) tropane(IPT) SPECT in differential diagnosis among early stage of Parkinson's disease(PD) and essential tremor(ET) and normal control(NL) groups quantitatively. Materials and Methods: I-123 IPT brain SPECT of 50 NL, 20 early PD, 30 advanced PD, and 20 ET were performed at 20 minutes and 2 hours. Specific/nonspecific binding of striatum was calculated by using right and left striatal specific to occipital non-specific uptake ratio(striatum-OCC/OCC). Results: Mean value of specific/nonspecific binding ratio was significantly different between advanced PD group and NL group. However, significant overlap of striatal specific/nonspecific binding ratio was observed between PD group and ET group. Bilateral striatal specific/nonspecific binding ratios were decreased in advanced PD. Lateralized differences in the striatal uptake of I-123 IPT correlated with asymmetry in clinical findings in PD group. Conclusion: I-123 IPT SPECT may be a useful method for the diagnosis of PD and objective evaluation of progress of clinical stages. Care should be made in the differential diagnosis of early stage of PD and other motor disturbances mimicking PD such as ET in view of significant overlap in striatal I-123 specific/nonspecific binding ratio.
Purpose : Corticosteroid has been used as the mainstay therapy of childhood NS. But SIO is one of the serious complications of long-term steroid therapy, especially in growing children. Recently calcium, calcitonin, PTH, vitamin D and bisphosphonate has been used to treat or prevent SIO in adult, which is rare in children with NS. We studied the effect of $1{\alpha}-(OH)D_3$ and Pamidronate on SIO using dual energy X-ray absorptiometry (DEXA). Patients and methods : We studied thirty patients who admitted in the Dept. of Pediatrics of Kyung Hee Medical Hospital with NS. All patients was received longterm steroid therapy. There was no history of bone, liver, or endocrine disease. The samples, serum protein, albumin, BUN, creatinine, calcium, phosphorus, and BMD were obtained before and the six months after the dose of $1{\alpha}-(OH)D_3$ and Pamidronate, respectively Results : The mean age was $6.9{\pm}3.3\;and\;6.5{\pm}2.5$ years old. The mean duration of steroid therapy was $28.8{\pm}1.8\;and\;27.6{\pm}1.0$ months. The changes of serum protein, albumin, BUN, creatinine, calcium and phosphorus level between pre-treatment and post-treatment did not show statistical significance in both $1{\alpha}-(OH)D_3$ and Pamidronate treatment group. However, BMD was increased in both from $0.472{\pm}0.12\;and\;0.457{\pm}0.10\;g/cm^2\;to\;0.533{\pm}0.12$ and $0.529{\pm}0.09\;g/cm^2$ after treatment. (P<0.05) Conclusion : Both $1{\alpha}-(OH)D_3$ and Pamidronate appears to be effective in treating and preventing SIO in children with nephrotic syndrome requiring long-term steroid therapy.
Min Jae Hong;Paek Kyung Hoon;Park Kyung Mi;Kim Jung Sue;Ha Il Soo;Cheong Hae Il;Kim Joong Gon;Choi Yong
Childhood Kidney Diseases
/
v.3
no.1
/
pp.80-87
/
1999
Purposes : Renal involvement is a potentially serious complication of systemic lupus erythematosus (SLE). There have been only few studies of lupus nephritis in pediatric age. In this study, the clinical manifestations, pathologic findings, response to treatment, and clinical course of lupus nephritis in children were analyzed. And the results will provide basic data for future nation-wide prospective multi-center study. Methods . The medical records of 46 children clinically and pathologically diagnosed to have lupus nephritis at Seoul National University Children's Hospital during 1986 to 1997 were analyzed retrospectively. Results : 1) The median age of diagnosis of lupus nephritis was 12.8 years ($2\;years\~\;15year$ 8months), and the sex ratio was 1:2.5. 2) FANA($85.7\%$), anti-ds-DNA antibody ($78.0\%$), and malar rash ($60.8\%$) were the most common findings among the classification criteria by ARA Decreased C3 was detected in $88.9\%$ of patients. 3) Hematuria ($87.0\%$) was the most common renal symptom, and WHO class IV lupus nephritis was identified in 41 cases by renal biopsy. 4) In most of patients, the disease activity was controlled relatively well with a single or combined therapy of prednisolone, azathioprine, or cyclophosphamide. The response revealed no difference according to the mode of treatment. 5) Infection, especially of Varicella-Zoster virus and candida, was the most common complication during the disease course. Conclusion : The renal involvement was noted in $87.0\%$ of childhood SLE, and $89.1\%$ of renal lesions was WHO class IV lupus nephritis known to associated with poor long-term prognosis. So, aggressive treatment using immunosuppressants in the early disease course may be helpful to increase long-term prognosis of lupus nephritis. A prospective multi-center study is necessary to analyze the therapeutic efficacy of various treatment modalities.
Shin Weon Hye;Ko Cheol Woo;Koo Ja Hoon;Chung Sung Kwang
Childhood Kidney Diseases
/
v.3
no.1
/
pp.88-94
/
1999
Purpose : Malformation of urinary tract is among the most common of all congenital anomalies and can progress to irreversible renal damage before diagnosis due to difficulty of early diagnosis. Present study was undertaken to determine the clinical characteristics of urinary tract anomaly and to find out the most appropriate diagnostic and therapeutic measures for children with these anomalies. Methods : During the past 10 years from 1987 to 1998, review of medical records revealed 65 children with congenital anomaly of urinary tract and the following results were obtained. Results : The most common anomalies were ureteropelvic junction obstruction occuring in 26 cases ($36\%$), followed by ureteral duplication in 11 cases, renal agenesis in 10 cases and ureterovesical function obstruction in 7 cases. Complex anomaly of urinary tract was found in 8 cases and anomaly of other systems such as congenital heart disease was detected in 11 cases. The most frequent age group at the time of diagnosis was below 1 year of age constituting 39 cases ($60\%$) and male preponderance was noted as male to female ratio being 2.25:1. Presenting symptoms were urinary tract infection in 25 cases, followed by hematuria, abdominal mass, abdominal pain and voiding difficulty, etc, and in 11 cases, the anomaly was picked up by routine prenatal ultrasonography. Azotemia was noted in 9 cases and the underlying anomaly was obstructive uropathy in 4 out of these 9 cases. Surgical correction was undertaken in 38 cases (most frequently in cases of obstructive uropathy) and in 2 out off cases with obstructive uropathy in whom surgical correction was done, azotemia disappeared during follow up period of 1-5years. No new cases of deteriorating renal function appeared during follow-up period. Conclusion : In spite of high incidence of congenital malformation of urinary tract, early diagnosis is still hampered by nonspecific symptoms and signs. Therefore, in patients with symptoms such as urinary tract infection, abdominal pain and voiding problems, etc, it Is advisable to take various diagnostic tests promptly to pick up any urinary tract anomaly and to apply proper therapy in order to avoid progression to irreversible renal damage. In this regard, prenatal ultrasonography should be utilized more widely as a routine procedure to detect any urinary tract anomalies before birth.
Purpose : Vesicoureteral reflux (VUR), which can result in renal failure in children, is expected to resolve spontaneously in mild cases, but severe cases require surgical correction, posing dilemma in deciding the right measures in some cases. Therefore, to delineate the factors affecting spontaneous resolution of VUR and to apply them in assessing the prognosis, we reviewed the patients with VUR who had been treated medically. Patients and Methods : 32 children (49 renal units) with reflux who had been admitted during the 5-year period from Jan '92 to Dec '96 were classified into 4 groups (Resolved, Improved, Unchanged, and Worsened) and analyzed. Results : 1) 25 were boys and 7 girls. The age at diagnosis ranged from 13 days to 9 years (mean $24.6{\pm}11.4$ mo) 2) Among 49 refluxing ureters, 4 were below 1 me of age,21 between 1 me to 1 yr, 16 between 1 yr to 6 yr, 8 beyond 6 yr. Two belonged to Grade I, 16 to Crade II, 17 to Grade III, 12 to Grade IV, and 2 to Grade V. 3) Spontaneous resolution rates of reflux were 100, 81, 47, 8, 0$\%$ for each Grade, respectively. Resolution plus improvement rates in Grade III and IV were 71 and $50\%$, each. 4) Resolution rates in relation to the age at diagnosis were $100\%$ for below 1 mo, $48\%$ between 1 mo to 1 yr, $56\%$ between 1 to 6 yr, and $13\%$ beyond 6 yr. 5) Of 15 unilateral refluxing ureters, 14 ($93\%$) resulted in resolution. Of 34 bilateral refluxing ureters, 11 ($32\%$) resolved spontaneously 6) Resolution occurred within 1 year in 20 units of 24 renal units in regular follow-up. Conclusion: The lower the initial grade and the younger the patient, the sooner the reflux resolved. Resolution was better when VUR was unilateral than bilateral. Long-term regular follow-up is essential because even the cases falling in Grades III and IV have high rates of spontaneous resolution and improvement with medical treatment.
Purpose : Childhood primary VUR is generally diagnosed after urinary tract infection, is more prevalent among girls and has a low spontaneous resolution rate in cases of severe VUR. The aim of the present study is to examine the age and gender-related characteristics and the spontaneous resolution rate of infantile primary VUR. Methods : The medical records of 96 infants with primary VUR, diagnosed after their first UTI, were retrospectively reviewed(1995-2004). The clinical characteristics including gender, the degree of VUR and presence of renal scars were evaluated. The spontaneous resolution rate and contributing factors were also analyzed Results : Infantile primary VUR was more prevalent in males than females. The percentage of atrophic scarred kidney was significantly higher in males than females(17.2% vs 3.4%) (P<0.05). The cumulative spontaneous resolution rate in 3 years was very high(89.1%), and was not significantly different between gender and among VUR grades. But in the first year, the spontaneous resolution rate of severe refluxing ureters was significantly higher in males than in females(46.2% vs 7.1%)(P<0.05) and the spontaneous resolution rate of refluxing ureters with no scarred kidneys was significantly higher than those associated with atrophic scarred kidneys(76.6% vs 20%)(P<0.05). Conclusion : Infantile Primary VUR was more prevalent among males and tends to be associated with atrophic scarred kidneys In male infants. The cumulative spontaneous resolution rate in 3 years was very high, even in high-grade VUR and associated atrophic scarred kidneys. In infantile primary VUR, surgery should be withheld even in infants with high-grade VUR with atrophic scarred kidneys.
Park, Sung-Shin;Chung, Sung-Hoon;Song, Jun-Hyuk;Kim, Sun-Kyoung;Cho, Byoung-Soo;Kim, Sung-Do
Childhood Kidney Diseases
/
v.11
no.1
/
pp.32-40
/
2007
Purpose : We performed this study to determine the incidence of acute renal failure(ARF) in birth asphyxia and to correlate the severity of asphyxia and hypoxic-ischemic encephalopathy (HIE) and ARF in asphyxiated neonates. Methods : Data was retrospectively collected from the medical records of 33 patients with neonatal asphyxia and of 33 neonates with no asphyxia. On the basis the 5-minute Apgar score, the asphyxiated neonates were further grouped into mild(6 or 7), moderate(4 or 5), and severe asphyxia(3 or less). Asphyxiated neonates with HIE were staged by the Sarnat and Sarnat scoring system. We compared serum creatinine, blood urea nitrogen, electrolytes, and urine output on day 3 of life and the incidence and severity of intraventricular hemorrhage(IVH) between each group. Results : ARF occurred in 8(24.2%) asphyxiated neonates. Of these, 3(37.5%) were oliguric, while 1(10.0%) patient with mild asphyxia, 2(18.2%) of moderate asphyxia, and 5(41.7%) with of severe asphyxia had ARF(P>0.05). One(25%) patient with stage I HIE, 4(50%) with stage II HIE, and 3(75%) of HIE with stage III HIE developed ARF(P<0.01). There was no statistical correlation between the severity of asphyxia and HIE stage. One(7.7%) patient with grade 1 IVE, 0(0.0%) with grade 2 IVH, 2(66.7%) with grade 3 IVH, and 2(100.0%) with grade 4 IVH had ARF(P<0.01). Mortality was higher in asphyxiated neonates with ARF(P<0.05). There was no significant difference between the oliguric and non-oliguric renal failure. Conclusion : We found that the greater the degree of HIE, the higher was the incidence of ARF. Asphyxiated neonates with ARF had a poorer prognosis.
Purpose: Recently, the incidence of acute hepatitis A has increased nationwide and is related to a low rate of IgG anti-HAV production. To establish effective measures for preventing hepatitis A virus infection, an epidemiologic study on the seroprevalence of anti-HAV is needed. Thus, we investigated the seroprevalence of IgG anti-HAV in children living in Gwangju and Jeonnam. Methods: IgG anti-HAV levels were measured in a total of 1,435 patients who visited Chosun University Hospital between January 2009 and December 2009. Results: The overall seropositve rate was 40.8% (586/1,435). The seropositive rates were 41% among children under the age of 1 year, 49.9% for children 1~5 years old, 51.1% among individuals 5~10 years old, 12.9% for individuals 10~15 years old, and 8.2% for subjects over 15 years old. There was no significant difference between genders in any group. The seropositive rates in Gwangju and Jeonnam were 57.3% and 32.9% for children under the age of 1 year, 52.5% and 44.3% for children 1~5 years old, 60.2% and 33.9% among children 5~10 years old, 14.1% and 9.7% for children 10~15 years old, and 10.8% and 4.2% for individuals over 15 years old. Conclusion: The results demonstrated the low rates of IgG anti-HAV, particularly among subjects over 10 years old, which suggests the possibility of increasing clinical HAV infection rates among adults in the near future. We should actively prevent the spread of hepatitis A virus. Vaccination is the most effective means of preventing hepatitis A virus transmission among persons at risk for infection. Hepatitis A vaccination is recommended for children who have low IgG anti-HAV seropositive rates.
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