Biomedical subjects

Fu-Yuan Huang

Publications and source records attributed to Fu-Yuan Huang.

At least 37 records · Page 2Linked to original sources

PubMed2005

Ceftriaxone resistance of nontyphoidal Salmonella enterica isolates in Northern Taiwan attributable to production of CTX-M-14 and CMY-2 beta-lactamases.

Among 3,027 nontyphoidal Salmonella enterica isolates identified between January 1999 and December 2002 in a medical center in northern Taiwan, 31 were resistant to the extended-spectrum cephalosporin ceftriaxone (1.02% [31/3,027]), including 2 in 1999 (0.36% [2/549]), 13 in 2000 (1.49% [13/870]), 7 in 2001 (0.78% [7/893]), and 9 in 2002 (1.26% [9/715]). Sixteen of these isolates belonged to Salmonella serogroup B, nine belonged to serogroup C, four belonged to serogroup D, and two belonged to serogroup E. The majority were from stool cultures. The mechanism of resistance was investigated for eight isolates, including three S. enterica serovar Typhimurium, one S. enterica serovar Wagenia, one S. enterica serovar Senftenberg, one S. enterica serovar Derby, one S. enterica serovar Panama, and one S. enterica serovar Duesseldorf isolate. All eight patients from whom these isolates were recovered had community-acquired infections. All eight isolates were resistant to ampicillin, ceftriaxone, and cefotaxime but susceptible to imipenem and ciprofloxacin. Ceftriaxone resistance was due to the production of the CMY-2 AmpC beta-lactamase by seven isolates and the CTX-M-14 beta-lactamase by the remaining isolate. Both beta-lactamase genes were carried on conjugative plasmids. In a 2.5-kb region encompassing the bla(CMY-2) gene, at nucleotide 49 upstream of the start codon of bla(CMY-2), three of the seven bla(CMY-2)-positive isolates had an A nucleotide and four had a G nucleotide. In conclusion, the ceftriaxone resistance of nontyphoidal Salmonella isolates in our hospital was attributed to the CTX-M-14 and CMY-2 beta-lactamases.

Adult↗

PubMed2005

The CBLB gene and Graves' disease in children.

The CBLB gene functions as a negative regulator of autoimmunity. Impairment of the Cbl-b signaling pathway may contribute to human autoimmune disease. dbSNP rs2305035 is a C/T polymorphism located in exon 10 of the CBLB gene. We report an association study of this polymorphism in children with Graves' disease. The patients were 158 unrelated children (125 girls) with Graves' disease, aged 9.8 +/- 3.3 years. The controls consisted of 237 adults without a history of autoimmune disease. The C allele and phenotype frequencies of patients and controls were 247 (78.2%) vs 356 (75.1%) (OR = 1.19, p >0.05) and 151 (95.6%) vs 221 (93.2%) (OR = 1.56, p >0.05), respectively. The allelic polymorphism in patients and controls with and without DRB1*09012 were also not significantly different. This study demonstrates that the C/T polymorphism in exon 10 of the CBLB gene is not associated with Graves' disease in children.

Adaptor Proteins, Signal Transducing↗

PubMed2005

Characteristics of primary osteomyelitis among children in a medical center in Taipei, 1984-2002.

BACKGROUND AND PURPOSE: The presentation and sequelae of osteomyelitis are variable. This study evaluated the clinical manifestations and outcome of osteomyelitis in children in different age groups, and in different periods before and after the implementation of National Health Insurance (NHI). METHODS: The records of pediatric patients with osteomyelitis treated at a medical center in Taipei from 1984 to 2002 were reviewed. Clinical features, pathogens, laboratory and imaging findings, treatment, and outcome were analyzed. The patients were stratified into 3 groups based on age: infants (< or = 3 months of age), young children (between 4 months and 5 years), and older children and adolescents (> 5 years). Based on the date of implementation of the NHI program, the study period was divided into 2 stages: prior to implementation, from January 1984 to February 1995; and after implementation, from March 1995 to December 2002. RESULTS: The records of 209 patients were reviewed, including 45 infants, 77 young children, and 87 older children. The most common presenting findings were local tenderness (79%), local swelling (72%), and fever (57%). The lower limbs were the most commonly involved sites (65%). Staphylococcus aureus (34%), Mycobacterium tuberculosis (10%), Salmonella species (7%), and Pseudomonas aeruginosa (6%) were the most frequently isolated pathogens. At the time of diagnosis, abnormalities were found on radiographs in 83% of patients and on radionuclide bone scans in 86%. Surgical intervention with local debridement and curettage was performed in 102 patients (49%). Sixty five patients (31%) developed complications, including specific bony sequelae in 26 (12%). Sepsis and septic arthritis were more common in infants (p < 0.01). A history of trauma, protracted course of osteomyelitis, and surgical intervention were more common in older children and adolescents (p < 0.01). After the implementation of NHI, a larger proportion of patients had negative cultures (p < 0.01), and the mean duration of antibiotic therapy was shorter (p = 0.01). CONCLUSIONS: The clinical characteristics of osteomyelitis associated with sepsis or septic arthritis, chronic changes, and the need for surgery may differ depending on the age of the child. S. aureus, M. tuberculosis, and salmonellae were the most common pathogens in this Taiwanese series. Implementation of NHI in the more recent decade of the study period was associated with a shorter duration of intravenous antibiotic administration.

Adolescent↗

PubMed2005

Comparison of the characteristics of culture-negative versus culture-positive septic arthritis in children.

Septic arthritis in children can be difficult to diagnose and may be associated with severe morbidity. A majority of apparent septic arthritis cases may have negative culture, thereby creating a dilemma regarding treatment. The medical charts of 209 children with the diagnosis of septic arthritis were retrospectively reviewed to evaluate the differences between culture-negative (n = 64) and culture-positive (n = 145) cases. Demographic data, clinical manifestations, treatment, and outcome were analyzed. Laboratory data recorded included white blood cell count, erythrocyte sedimentation rate, C-reactive protein, imaging studies, and culture results. Patients with culture-negative arthritis had a significantly lower incidence of fever (56.3% vs 70.3%, p=0.047), local pain or tenderness (42.2% vs 69.7%, p=0.0001), changes in the overlying skin (45.3% vs 62.1%, p=0.024), motion limitation (25.0% vs 42.8%, p=0.014), and osteomyelitis (25.0% vs 40.7%, p=0.029). Culture-negative patients had a longer duration of symptoms or signs before diagnosis (10.1 +/- 8.9 days vs 6.5 +/- 5.7 days, p=0.046) and a shorter antimicrobial course (24.5 +/- 5.1 days vs 35.7 +/- 8.1 days, p=0.001). Children with culture-negative septic arthritis had a lower prevalence of residual joint dysfunction at 6 months after treatment (3.1% vs 11.7%, p=0.046). In conclusion, children with culture-negative septic arthritis have milder clinical manifestations, earlier response to treatment, and a better outcome than those with culture-positive disease.

Adolescent↗

PubMed2005

A neonatal echovirus 11 outbreak in an obstetric clinic.

An echovirus 11 outbreak occurred among neonates in an obstetric clinic in November 2003. Thirteen neonates were transferred to our medical center, and all were found to have echovirus 11 infection. Viral studies were performed for 32 other infants born in the clinic during the same period, including 30 asymptomatic neonates and 2 febrile infants transferred to another hospital. Two of the asymptomatic infants had echovirus 11 isolated from rectal swabs. The first patient transferred to our medical center developed extensive hemorrhage and died 6 days later. Three family members of this infant were also proved to have echovirus 11 infections. One other infant had a fulminant course and had residual hepatic impairment. The other infants had no complications. Viral studies in the 24 nursery staff were all negative. This outbreak shows how a neonatal enterovirus outbreak can occur in a nursery, starting from an infected infant in the incubation period. Early recognition and prompt management of an outbreak is important to prevent further spread of the infection.

Antibodies, Viral↗

PubMed2005

Clinical features and factors of unfavorable outcomes for non-polio enterovirus infection of the central nervous system in northern Taiwan, 1994-2003.

This study investigated the clinical manifestations and outcomes of central nervous system (CNS) infection by enteroviruses. Cases with CNS involvement among all enterovirus-culture-positive cases from January 1995 to June 2003 were retrospectively reviewed. Among 1028 enterovirus-culture-positive cases, there were 333 cases involving the CNS. Of these, the ratio of male to female subjects was 1.78, and the mean (+/- standard deviation) age was 6.83 +/- 5.9 years; 21 were premature neonates, and 10 failed to thrive. Disease entities included 282 cases of aseptic meningitis (84.7%), 44 cases of encephalitis (13.2%), and 7 cases of encephalomyelitis/polio-like syndrome (2.1%). Of these cases, 97.9% (326/333) had fever with peak body temperature at 38.9 degrees C, 85% had headache and vomiting, 70% had meningeal signs, 64% had neck stiffness, 16.6% (55/333) had change of consciousness, 5.4% (18/333) had seizures and 5.2% (17/333) had myoclonic jerks. Mannitol was administered in 77.2% of patients (257/333), along with intravenous immunoglobulin in 6.6% (22/333). Twelve cases received ventilator support. One patient died of hand-foot-and-mouth disease, encephalitis plus cardiopulmonary failure, and 2 premature neonates died of hepatic failure, disseminated intravascular coagulation, sepsis-like syndrome and myocarditis. Eighteen had neurologic sequelae, including 7 with limb weakness, 5 with epilepsy, 2 with sixth cranial nerve palsy, 3 with cerebral palsy, 4 with psychomotor retardation, 2 with spasticity, and 1 with hearing loss. Factors associated with unfavorable outcomes (death or sequelae) included younger age (p=0.0003), higher peak white blood cell count (WBC) [p=0.0009] and skin rash (p=0.005). Younger age and higher peak WBC were poor prognostic factors of severe enterovirus CNS infection. Death was related to neonatal enterovirus infection and enterovirus 71 infection in young children.

Adolescent↗

PubMed2005

Disseminated Bacille Calmette-Guérin disease as the initial presentation of X-linked severe combined immunodeficiency--a case report.

Bacille Calmette-Guerin (BCG) vaccination is used to prevent severe M. tuberculosis infection. It has been used in many countries for a long time. However, complications do occur, including localized abscesses, regional lymphadenitis and disseminated disease. The latter is often associated with underlying immunodeficiency. We report an 8-month-old male infant presenting with cough and fever who had had a generalized pigmented skin rash for one month. Skin biopsy revealed mycobacterial infection, but his response to treatment was poor and he had a persistent mild fever. Immunological studies revealed an IgG of 49 mg/dl, IgA 4 mg/dl, IgM 28 mg/dl, IgE < 1 mg/dl, CD3 1.1%, CD4 0.6%, CD8 0.6%, CD19 93.9%, CD57 1.1%, activated T cells 0.9%, and CH50 < 6.3%. These findings are compatible with the diagnosis of T(-)B(+)NK- severe combined immunodeficiency. Sequence analysis was performed and showed the presence of missense mutation in IL2Rgamma gene. An X-linked recessive inheritance pattern was proved by sequence analysis of his mother and grandmother. In order to identify the strain of the microorganism, we reviewed pathology of the skin biopsy which consisted of diffuse histiocytic infiltrate with poorly formed granulomas and no necrosis and used polymerase chain reaction (PCR) with the stain-positive clinical specimen and verify the organism found in the child's biopsy as M. bovis BCG strain. The diagnosis of disseminated BCG disease must be considered in any infant with cutaneous mycobacterial lesions, especially with atypical histologic findings. Such a patient's immunologic status should be evaluated and further family study is suggested. A high index of suspicion is needed to make a timely diagnosis, as early intervention with intensive treatment and bone marrow transplantation may be life-saving.

BCG Vaccine↗

PubMed2005

Hereditary angioedema: a family study.

Hereditary angioedema (HAE) is a rare, life-threatening, autosomal dominant disease characterized by recurrent episodes of angioedema, and caused by a deficiency of the plasma protein C1-esterase inhibitor (C1-INH). Clinical manifestation of HAE may first develop during childhood but typically presents around puberty with nonpruritic and non-pitting edema of the subcutaneous and mucosal tissues. Up to now, there has been no published report of HAE case in Taiwan. We reported a 33 year-old female patient who had recurrent painful swelling of face and hands since 27 years of age. She first suffered from sudden onset of painful swelling of the eyelids and lips in August 1998 when she was pregnant for the first time. Subsequently, similar episodes recurred for a few times. Her blood test disclosed that her C3 and C4 were 125 mg/dl and 6 mg/dl, respectively. Her uncle died of laryngeal edema at the age of 30 years. Her father and elder brother also had the similar history of recurrent facial and hand swelling. The C4 levels of her elder brother were 6 mg/dl and 13.3 mg/dl on two separate occasions. The C1-INH antigen serum level and functional assay of the index patient and ten other family members were studied. A total of seven members of the family were confirmed to have type 1 HAE as evidenced by the low C4 and low C1-INH antigenic level and functional activity. Two of the seven cases were asymptomatic up to the date of our report.

Adult↗

PubMed2004

Unexpected mortality in pediatric patients with postoperative Hirschsprung's disease.

Hirschsprung's disease is characterized by lower intestinal obstruction. In this retrospective study, we investigated the postoperative complications and the causes of death in pediatric patients with Hirschsprung's disease. Between January 1981 and June 1998, 147 patients with Hirschsprung's disease underwent surgical intervention (129 with both colostomy and Soave's pull-through procedures) at Mackay Hospital. Of 147 total patients, 83.67% had aganglionosis in the rectosigmoid, 5.44% had colon involvement, and 4.08% had total colon aganglionosis, documented pathologically after a Soave's pull-through procedure. Any post-pull-through patient who showed symptoms of fever, leukocytosis, diarrhea, and clinical sepsis was diagnosed with Hirschsprung's enterocolitis. Four patients died within 4.5 months of surgery, and one patient died more than 4 years after surgery; these five patients were positive for Thomsen (T-) antigen. One patient died soon after rectal irrigation was performed in preparation for the surgery. All five of these patients had sepsis clinically, and anaerobic sepsis was attributed as the main cause of their deaths. Of interest in these cases is the presence of T-antigen, a potentially useful marker for anaerobic bacterial infection that may not be well known to most pediatricians. We recommend (1) determining the presence of T-antigen in patients with recurrent Hirschsprung's enterocolitis, (2) administering empirical antibiotics with anti-anaerobic activity as soon as possible, and (3) irrigating the colon in those patients who develop sepsis after a pull-through procedure.

Anal Canal↗

PubMed2004

Childhood severe acute respiratory syndrome in Taiwan and how to differentiate it from childhood influenza infection.

OBJECTIVE: To investigate clinical features and outcomes of children in Taiwan with laboratory-confirmed severe acute respiratory syndrome (SARS) vs those of children with influenza to differentiate the 2 diseases. DESIGN, SETTING, AND PARTICIPANTS: Patients 20 years or younger with clinical, epidemiological, and laboratory evidence of SARS from March to July 2003 vs children with virus culture-confirmed influenza in a 1:1 age- and sex-matched control group. MAIN OUTCOME MEASURES: Rates of symptoms, abnormal laboratory data, and outcomes of recovery, sequelae, or death. RESULTS: The 15 SARS patients (9 girls and 6 boys) had a median age of 17 years (age range, 4-20 years). Nine patients (60%) were infected through household contact, 4 (27%) nosocomially, 1 (7%) through contact with a neighbor, and 1 (7%) after returning from Hong Kong. All 15 patients had fever, 3 (20%) had chills, and 11 (73%) had cough. Only 1 patient (7%) had sputum production; 1 (7%) had rhinorrhea. At presentation, 5 patients (33%) had leukopenia, 6 (40%) had lymphopenia, and 5 (33%) had monocytopenia. All children recovered without sequelae. Children with SARS had significantly lower incidences of rhinorrhea (odds ratio [OR], 0.01; 95% confidence interval [CI], 0.00-0.09), sputum production (OR, 0.10; 95% CI, 0.02-0.63), and sore throat (OR, 0.17; 95% CI, 0.03-0.85) than children with influenza. Both groups had similar incidences of leukopenia or lymphopenia, but SARS patients had a significantly higher incidence of monocytopenia (33% vs 0%, P = .04). CONCLUSIONS: Childhood SARS is usually not fatal. The absence of rhinorrhea and presence of monocytopenia in SARS may distinguish it from influenza.

Adolescent↗

PubMed2004

Rapid creation of a temporary isolation ward for patients with severe acute respiratory syndrome in Taiwan.

OBJECTIVES: To rapidly establish a temporary isolation ward to handle an unexpected sudden outbreak of severe acute respiratory syndrome (SARS) and to evaluate the implementation of exposure control measures by healthcare workers (HCWs) for SARS patients. DESIGN: Rapid creation of 60 relatively negative pressure isolation rooms for 196 suspected SARS patients transferred from 19 hospitals and daily temperature recordings of 180 volunteer HCWs from 6 medical centers. SETTING: A military hospital. RESULTS: Of the 196 patients, 34 (17.3%) met the World Health Organization criteria for probable SARS with positive results of serologic testing for SARS-associated coronavirus (SARS-CoV), reverse transcriptase polymerase chain reaction (RT-PCR) from nasopharyngeal or throat swabs for SARS-CoV, or both. Seventy-four patients had suspected SARS based on unprotected exposure to SARS patients; three of them had positive results on RT-PCR but negative serologic results. The remaining 88 patients did not meet the criteria for a probable or suspected SARS diagnosis. Of the 34 patients with probable SARS, 13 were transferred to medical centers to receive mechanical ventilation due to rapid deterioration of chest x-ray results, and three patients died of SARS despite intensive therapy in medical centers. During the study period, one nurse developed probable SARS due to violation of infection control measures, but there was no evidence of cross-transmission to other HCWs. CONCLUSIONS: Despite the use of full personal protection equipment, the facility failed to totally prevent exposures of HCWs to SARS but minimized the risk of nosocomial transmission. Better training and improvements in infection control infrastructure may limit the impact of SARS.

Disease Outbreaks↗

PubMed2004

Transmission of cytomegalovirus from mothers to preterm infants by breast milk.

OBJECTIVES: To assess the risk of transmission of cytomegalovirus (CMV) by breast milk from CMV-seropositive mothers to their breast-fed preterm infants and to evaluate their outcome. PATIENTS AND METHODS: The study population comprised breast-fed preterm infants with a birth weight of <1,500 g and gestational age of <35 weeks. Venous blood samples from the mothers and infants were tested for CMV IgG and IgM antibodies on the 5th and 30th day after birth. Breast milk was obtained for CMV DNA detection by polymerase chain reaction and viral culture on the 5th day and on the 3rd, 6th and 12th week. Urine samples of the babies were collected at the same time for CMV culture. Neurodevelopmental assessment was done at 6 months of age, corrected for preterm birth. RESULTS: Thirty-eight mothers and 42 infants (including 4 sets of twins) were enrolled in the study. A mother-infant pair was excluded because of inadequate breast milk collection. Thirty-six mothers (97.3%) were CMV-seropositive. CMV DNA of breast milk was detected in 35 seropositive mothers. Six infants of 5 mothers were infected (infected group) at a mean of 77 days after birth, and 34 infants of 31 mothers were not (noninfected group). In all the mothers of the infected group, CMV virus could be cultured from the milk whey. The average maternal CMV IgG on day 5 after delivery was higher in the infected than in the noninfected group. Sepsis-like symptoms and hyperbilirubinemia were more frequently noted in the infected infants than in the noninfected, but the difference was not statistically significant. Neurodevelopmental outcome did not significantly differ between the 2 groups. CONCLUSIONS: The risk of CMV infection in breast-fed premature infants was highest when the mothers shed viable virus in their breast milk. These mothers had high CMV IgG, which may help identify those mother-infant pairs at risk. Inactivation of the virus in milk by freezing may be a way of reducing the transmission of this virus via breast milk.

Breast Feeding↗

PubMed2004

Serum cytokines in differentiating between viral and bacterial enterocolitis.

It is difficult to distinguish clinically between bacterial and viral causes of enterocolitis. The aim of the study was to investigate if serum cytokines can distinguish bacterial from viral enterocolitis. We prospectively enrolled 147 paediatric in-patients with acute enterocolitis. Blood was taken for leucocyte count, CRP, ESR, IL-6, IL-8, IFN-alpha and TNF-alpha on the day of admission. A pathogen was identified in 115 of the 147 children, 72 of whom had a bacterial pathogen (bacterial group) and 43 rotavirus (viral group). Mean values of the serum markers IL-6, IL-8 and CRP were significantly higher in the bacterial group. Receiver-operating characteristic curves demonstrated that a cut-off of 15 pg/ml for IL-6 had a sensitivity of 0.75 and a specificity of 0.91 for bacterial diarrhoea. Comparable values for CRP at a cut-off of 13 mg/L demonstrated a sensitivity of 0.54 and a specificity of 0.72. Values for IL-8 at a cut-off of 80 pg/ml had a sensitivity of 0.46 and a specificity of 0.71. Despite the small sample size, our data suggest that serum IL-6, IL-8 and CRP are significantly elevated in children with bacterial enterocolitis. IL-6 has a higher sensitivity, specificity and positive predictive value than IL-8 and CRP. Determination of serum cytokines might be a useful way of differentiating viral from bacterial gastro-enteritis.

Bacterial Infections↗

PubMed2004

Characteristics of nosocomial bacterial meningitis in children.

Nosocomial meningitis is uncommon in children. We reviewed the medical records of all children who developed bacterial meningitis at least 72 hours after admission to Mackay Memorial Hospital for the period July 1992 through June 2000. Clinical manifestations, predisposing factors, pathogens, and outcomes were analyzed. Twenty-two cases of nosocomial meningitis were identified, comprising 9.2% (22/239) of all pediatric cases of bacterial meningitis during the study period. The male-to-female ratio was 14:8. All patients were younger than 6 months of age except for one, who was 7 years old. The mean duration between admission and onset of meningitis was 15.3 days (range, 3 to 58 days). Twenty-two organisms were isolated, including 13 Gram-negative bacteria (59%) and 9 Gram-positive bacteria (41%). The most common pathogen was Escherichia coli (5 cases), followed by Enterobacter cloacae (3), Staphylococcus aureus (3), and Chryseobacterium meningosepticum (3). Seventeen patients (77%) had concomitant bacteremia. Predisposing factors for acquisition of nosocomial meningitis included previous treatment with broad-spectrum antibiotics (68%), prematurity with very low birth weight (41%), and total parenteral nutrition (32%). Two patients (9%) had previous neurosurgical intervention. Four patients (18%) died, 3 of whom were low birth weight premature infants. Nine patients (41%) had sequelae, including developmental delay, hydrocephalus, hearing impairment, and epilepsy. Neurosurgery was not a significant risk factor for the development of nosocomial meningitis, while very low birth weight played an important role. Previous intraventricular hemorrhage or hydrocephalus, prematurity with very low birth weight, infection with Gram-negative bacteria, and prior broad-spectrum antibiotic administration were associated with poor outcome.

Bacterial Infections↗

PubMed2004

Diagnosis of Henoch-Schönlein purpura by sonography and radionuclear scanning in a child presenting with bilateral acute scrotum.

Acute scrotum presenting as the only initial manifestation of Henoch-Schönlein purpura (HSP) is so unusual that the diagnosis can easily be missed. We report this condition in a 4-year-old boy admitted with bronchopneumonia. Bilateral painful scrotal swelling with ecchymosis occurred on the second day of hospitalization. Scrotal sonography was performed and a good blood supply was documented. Scrotal nuclear scanning was performed and was consistent with bilateral epididymoorchitis. Multiple purpuric lesions over the lower extremities and perineal region developed on the third day of hospitalization. Intermittent abdominal pain and knee pain developed thereafter. HSP was diagnosed and steroids were prescribed. The symptoms subsided gradually and no complication was noted. This case reminds us that an acute scrotum may be the only initial manifestation of HSP. Sonography and nuclear scanning can help rule out other diseases.

Acute Disease↗

PubMed2004

Safety and immunogenicity of heptavalent pneumococcal conjugate vaccine in Taiwanese infants.

BACKGROUND AND PURPOSE: The prevalence of antibiotic-resistant pneumococci has increased markedly in Taiwan since the 1990s. The prevention of pneumococcal infection by effective vaccination is an urgent need. The purpose of this study was to assess the safety and immunogenicity of heptavalent pneumococcal conjugate vaccine (serotypes 4, 6B, 9V, 14, 18C, 19F, 23F) in Taiwanese infants. METHODS: Sixty healthy Taiwanese infants received heptavalent pneumococcal conjugate vaccine at 2, 4 and 6 months of age in an open-label, non-comparative trial. Routine diphtheria-tetanus-pertussis vaccines were concomitantly administered. Side effects were recorded and the antibody titer to each of the 7 pneumococcal serotypes was measured before vaccination and 1 month after the third vaccination. RESULTS: Mild to moderate local reactions at the injection site were the common findings (17 to 30%) after vaccination but were not correlated with the number of vaccinations. Fever, restlessness, fussiness, and loss of appetite were the most common systemic reactions (22 to 53%). After 3 doses of vaccine, the geometric mean concentration of immunoglobulin G showed a significant rise (p < 0.001) to all 7 pneumococcal serotypes. More than 95% of infants had antibody titer > or = 0.15 microg/mL of all serotypes, and 93% (serotype 23F) to 100% (serotypes 4 and 19F) of infants achieved an antibody titer > pr = 1 microg/mL. CONCLUSION: Inoculation with the heptavalent pneumococcal conjugate vaccine including the prevalent serotypes in Taiwan is safe and effective in preventing pneumococcal disease in Taiwanese children.

Antibodies, Bacterial↗

PubMed2004

Stenotrophomonas maltophilia bacteremia in adults: four years' experience in a medical center in northern Taiwan.

Stenotrophomonas maltophilia has become an important nosocomial pathogen in immunocompromised patients in Taiwan. Patients with underlying diseases such as diabetes, uremia, and solid malignancy are extremely vulnerable to this organism. S. maltophilia bacteremia has a mortality rate of up to 62% if appropriate antibiotics are not instituted early. Knowledge of the risk factors for infection as well as local susceptibility patterns is helpful in determining which patients should receive empirical antibiotics active against S. maltophilia. This study assessed the characteristics of 50 episodes of S. maltophilia bacteremia in 48 patients admitted between March 3, 1999 and May 21, 2003. The new fluoroquinolone levofloxacin showed promising in vitro activity against S. maltophilia in view of the increasing resistance of isolates to trimethoprim-sulfamethoxazole. For patients at risk for S. maltophilia infection, such as those receiving mechanical ventilation in the ICU or those with multiple vascular access devices, the need for antimicrobial agents to which S. maltophilia is normally sensitive should be considered in selecting empiric therapy.

Adult↗

PubMed2003

Kimura disease in a patient with renal allograft failure secondary to chronic rejection.

Recent studies suggest that CD4(+ )T helper 2 (Th2) cell proliferation and overexpression of Th2 cytokines may play an important role in the development of Kimura disease. Chronic rejection of a renal allograft by the indirect allo recognition pathway is also induced by Th2 cytokines. We report a 12-year-old boy who had presented with nephrotic syndrome 10 years previously. He was found to have focal segmental glomerulosclerosis, which was attributed to vesicoureteral reflux, and he underwent renal transplantation at the age of 5 years. Allograft dysfunction secondary to chronic rejection was noted by 2 years post transplant, after which continuous ambulatory peritoneal dialysis was instituted. After discontinuation of immunosuppressive therapy, he progressively developed peripheral eosinophilia and eczema, followed by cervical lymphadenopathy and then epitrochlear lymphadenopathy. Kimura disease was diagnosed on lymph node biopsy. Our patient demonstrated that Kimura disease can occur after renal allograft failure secondary to chronic rejection. Both disorders involve the Th2-dominant immune response, according to previous observations.

Angiolymphoid Hyperplasia with Eosinophilia↗