Erradicación de Helicobacter pylori, consideraciones clínicas según la edad / Helicobacter pylori eradication, clinical considerations related to age

Helicobacter pylori (H. pylori) is a gram negative bacteria that survives in the gastric acid environment. The infection is acquired mainly during childhood. Fifty to 70% of adult population has the infection. However, in the last 10 year, a decrease in the prevalence of this infection has been observed in all age groups, in particular in pediatric population and elderly patients over 60 years old. The evolution of the infection depends on bacterial factors (virulence and toxins) and host immune response. People infected mainly develop gastrointestinal diseases such as gastritis, peptic ulcer and MALT lymphoma. H. pylori infection is the main risk factor of gastric cancer and for that reason, the eradication is recommended if H. pylori has been detected through invasive or non-invasive tests. Among children, eradication is not recommended unless there is a clinical manifestation that merits. H. pylori eradication is recommended in symptomatic adults and there is a controversy about massive eradication in asymptomatic population due to the risk of development of antibiotic resistance. Treatment is based on the use of proton pump inhibitors (PPI) associated to antibiotics, that should be chosen taking into account the increasing antibiotic resistance, and local availability. Clarithromycin (CLA) and levofloxacin resistance is increasingly high, and CLA-free quadruple therapy schemes are currently recommended for first-line therapy. H. pylori eradication must be confirmed with invasive or non-invasive tests. Second-line therapy based on antibiotics not previously used, PPI high doses and bismuth is recommended.

Helicobacter pylori (H. pylori) es una bacteria gramnegativa que sobrevive en el medio ácido gástrico. La infección se adquiere principalmente en la niñez. Un 50 a 70% de la población adulta es portadora, pero en los últimos 10 años, se ha observado una disminución en la prevalencia de infección en todos los grupos etarios, en particular en población pediátrica y mayores de 60 años. La evolución de la infección depende de factores propios de la bacteria (virulencia, toxinas) y de la respuesta inmune del huésped. Los individuos infectados desarrollan principalmente patologías gastrointestinales como gastritis, úlcera péptica y linfoma MALT. La infección por H. pylori es el principal factor de riesgo del cáncer gástrico por lo que se recomienda su erradicación en caso de haberse detectado mediante test invasivo o no invasivo. En niños, no es recomendable la erradicación a menos que exista una manifestación clínica que lo amerite. Se recomienda su erradicación en adultos sintomáticos y existe controversia respecto a la erradicación masiva en población asintomática debido al riesgo de desarrollar resistencia antibiótica. El tratamiento se basa en el uso de inhibidores de la bomba de protones asociado a antibióticos, los cuales deben ser escogidos teniendo en cuenta la tasa de resistencia antimicrobiana y disponibilidad local. La resistencia a claritromicina (CLA) y levofloxacino es creciente, por lo que se recomienda el uso de esquemas de cuadriterapia libre de CLA en esquemas de primera línea. Se recomienda confirmar su erradicación con test no invasivos y retratar con esquema de segunda línea con antibióticos no utilizados previamente, asociado a dosis altas de inhibidores de bomba de protones y sales de bismuto.

Difference of Malassezia Species and Pityrosporum ovale Specific IgE in Head and Neck Lesions of Atopic Dermatitis Related to Ages and Severity / 대한의진균학회지

BACKGROUND: Members of the genus Malassezia, lipophilic yeasts, are considered to be one of the exacerbating factors in atopic dermatitis. When the response of anti-inflammatory treatment of atopic dermatitis to adults was poor, antifungal treatment had a good response to atopic dermatitis. We compared Malassezia species detected in head and neck lesions of atopic dermatitis between children and adults. OBJECTIVE: To compare Malassezia species between children and adults in head and neck lesions of atopic dermatitis and to reveal the correlation levels of P. ovale specific IgE and clinical severity among these groups. METHODS: Malassezia species were incubated in Leeming and Notman media from skin lesions of 28 patients with head and neck lesions of atopic dermatitis (13 children, 15 adults). And ITS1 amplification and sequencing method was done for detection of Malassezia species. We also assayed P. ovale specific IgE and clinical severity grade of the patients. RESULTS: M. globosa was the predominant species in the children group. And M. furfur was the predominant species in the adults group respectively. The levels of P. ovale specific IgE increased more in the adults group than the children group. Clinical severity grade also more increased in the adults group. There was statistically significant correlation between P. ovale specific IgE and clinical severity grade (p<0.001). Conclusion: Malassezia species are aggravating factors in head and neck lesions of atopic dermatitis particularly in adults. We must keep in mind Malassezia species infection when resistance to antiinflammatory therapy in atopic dermatitis of adults.

Typing of Epstein-Barr Virus in Healthy Korean Children and Adults

PURPOSE: Recently, the list of Epsterin-Barr Virus (EBV)-associated diseases has been growing. It is now known that there are two types (type 1 & 2) of EBV, but it has yet to be fully investigated as to whether type B EBV differs in any way from type A virus in terms of geographical distribution or disease association. We performed this study to find out the prevalence of the two types of EBV in EBV seropositive healthy children and adults by using one step Polymerase chain reaction(PCR). METHODS: Fifty-four viral capsid antigen (VCA) IgG positive healthy children (5 to 15 yrs of age) and 60 healthy adults (20 to 50 yrs of age) were involved in this study. DNA extracted from saliva samples of healthy study children and adults were subjected to amplification using the modified one step general PCR, which was developed by M. Kunimoto et al for detection of EBV types. And B95-82 cells (type 1) and Jijoye cells (type 2) were used as positive controls, and K-562 cells was used as a negative control. RESULTS: EBV was detected in mouth washing saliva of 8 (14.8%) of 54 healthy children. Five EBV detected cases contained type 1 and the remaining three cases contained type 2. EBV was detected in mouth washing saliva of 21 (35%) of 60 healthy adults. Twenty EBV detected cases contained type 1 and the remaining one was type 2. In total, EBV was detected in the saliva samples of 29 cases (25.4%), and 25 (86.2%) contained type 1. CONCLUSION: The results of our study indicate that type 1 is highly dominant in Korea, and EBV excretion is more frequent in EBV positive healthy adults compared to EBV positive healthy children in Korea.

Surgical Results of Intermittent Exotropia in Pediatric versus Adult Group

We analyzed the change of the amount of postoperative deviation between pediatric group (younger than 18 years) and adult. group (older than 18 years) with intermittent exotropia. All of the 141 patients were treated by bilateral recession of lateral rectus muscle. Among 141 patients, 111 were overcorrected immediately after surgery. Among 111 overcorrected patients, 64 were children and 47 were adults. Fifty of 64 overcorrected pediatric patients were satisfied after 6 m.on`ths after surgery, but only 22 of 47 overcorrected adult patients were satisfied. Twenty two of 26 overcorrected 10-15delta immediately after surgery in pediatric group and 17 of 24 overcorrected under 10delta, in adult group were satisfied after 6 months after surgery. Between the two groups, the figure of change of postoperative deviation were different. In pediatric group, postoperative deviation was rnuch naore decreased at. 6 months after surgery, but, changes were less significant in adult group. We suggest that immediately after surgery, a small consecutive esotropia of 10 to ISA is desirable in children but. esotropia less than IDA in adults.

Conservative Treatment of Tuberculosis of the Spine / 대한정형외과학회잡지

Tuberculosis of the spine is still prevalent in many parts of the world and still remains as an important orthopaedic problem in Korea. Moreover, spinal tuberculosis is the most common and dangerous form of skeletal tuberculosis. With the availability of very effective antituberculous drugs two divergent controversy in the management of tuberculosis of the spine have been reported. A large group of surgeons has advocated the radical excision of the tuberculous focus and replacement of the defect with autogenous bone grafts under cover of chemo-therapy, and another practise is typified by regimen of Friedman, Konstam, Kaplan, and Stevenson and Manning, who treated a large number of patients with spinal tuberculosis using antiuberculous drugs alone. Even now, because of the shortage of hospital beds and ancillary help, private poor economy and patients general condition, some group of patient with tuberclous spine have been treated conservatively using effective antituberculous drugs. In this study authors clinically analysed the 75 patients who had conservative treatment with triple drug therapy for 18 months at the department of Orthopaedics, Catholic Medical College and Center during the past 10 years, and the results were as follows: 1. There were two prevalent age groups. One is the first decade (30.6%) and the other is the third decade(30.7%). The age prevalence in children was 6 to 10 years of age. 2. The lesions were common in the lumbar spine(56.0%) and the most commonly involved vertebra was L3. The average initial number of involved vertebral body was 1.9 vertebrae and it was changed to 2.3 vertebrae at the end of treatment(18 months). 3. Active pulmonary foci was associated in 17.4%(6.7% of tuberculous pleurisy included). 4. Out of 75 cases twenty-six(34.7%) had new involvement at the adjacent vertebra within 18 months after treatment. 5. The radiographic activity was assessed as active in all cases initially, but at 18 months after treatment 83% of the cases were in quiescent condition, and this percentage was increased to 78.7% at 36 months. 6. Spontaneous fusion rate of involved vertebral bodies was 24% at 18 months and 36% at 36 months after treatment, respectively. 7. Radiologically observed deep seated abscess shadow disappeared slowly over 3 to 20 months, but this disappearance was observed mainly within 8 months after treatment. 8. Mean increment of the kyphosis was average 7.5 degree (9.3° in children and 6.6° in adults) at the end of the treatment(18 months), and average 8.6 degree(10.9° in children and 7.3° in adults) at 36 months, by. internal gibbus angle. 9. Almost in all the adult patients, kyphosis developed during the active phase of the disease, while in children kyphosis progressed even after the healing of the disease. Children who had multiple vertebral involvement at the dorsal area had a tendency to develop more severe kyphosis. 10. Decrement of the kyphosis angle which located at the lumbar area after the end of the treatment was considered to be an effect of narmal lordotic curvature. 11. Generally representation of the changes seen in children was almost osteolytic change without sequestrum in comparison to adults who had more sequestrum formation. 12. In 95% of cases a favourable results were obtained.