Application of continuous thoracic close drainage using central venous catheter in the treatment of tuberculous pleurisy in children / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the clinical effect of continuous thoracic close drainage using central venous catheter instead of repeated thoracocentesis in the treatment of tuberculous pleurisy in children.</p><p><b>METHODS</b>Thirty-nine children with tuberculous pleurisy, who received continuous thoracic close drainage using central venous catheter in addition to conventional antituberculous chemotherapy, were used as the observation group and 42 children with tuberculous pleurisy who underwent repeated thoracocentesis in addition to conventional antituberculous chemotherapy served as the control group. The two groups were compared in terms of time to pleural effusion absorption, improvement in pleural thickening, length of hospital stay, and puncture-related expenses.</p><p><b>RESULTS</b>Compared with the control group, the observation group had significantly faster pleural effusion absorption (8 ± 4 d vs 12 ± 6 d; P < 0.01), significantly more improvement in pleural thickening (1.50 ± 0.25 mm vs 3.10 ± 0.30 mm; P < 0.05), a significantly shorter length of hospital stay (11 ± 3 d vs 18 ± 6 d; P < 0.01), and significantly lower puncture-related expenses (269 ± 24 yuan vs 475 ± 50 yuan; P < 0.05), as well as alleviated pain.</p><p><b>CONCLUSIONS</b>Continuous thoracic close drainage using central venous catheter is superior to repeated thoracocentesis in the treatment of tuberculous pleurisy in children, and it holds promise for clinical application in pediatric patients.</p>

Effects of obstructive sleep apnea hypopnea syndrome in children on multiple systems / 中华儿科杂志

<p><b>OBJECTIVE</b>Obstructive sleep apnea-hypopnea syndrome (OSAHS) may cause serious morbidities, such as systemic hypertension, diabetes, and cor pulmonale. However, currently no many reports on study of OSAHS in children are available. This study aimed to explore the effects of OSAHS on children's multiple systems.</p><p><b>METHOD</b>A total of 89 cases of children who came to the Sleep Treatment Center in the authors' hospital from March 2009 to December 2010 with snoring were tested with overnight polysomnography (PSG). They were classified into mild OSAHS group (n = 59, mean age of 5.71, SD = 2.46) and moderate to severe group (n = 30, mean age of 5.30, SD = 2.73) based on the PSG results, and 100 healthy children were selected as the control group (n = 100, mean age of 6 years, SD = 2.98). Data including height, weight, body mass index and blood pressure, peripheral blood routine, blood lipids, glucose and insulin, electrocardiogram and echocardiography were collected. Patients' adenoid face and abnormal occlusion were also recorded. Comparisons of the data were made among those groups.</p><p><b>RESULT</b>Mild OSAHS and moderate to severe group had significantly higher prevalence of adenoid face (23.7%, 26.7%), and abnormal occlusion (74.6%, 60.0%) than that in control group (0, 40%) (P < 0.05). There were no significant differences in terms of BMI between the OSAHS group and the control group, but the weight (kg) and height (cm) in the mild OSAHS group (23.3 ± 10.1, 114.9 ± 16.2) and moderate to severe group (21.9 ± 8.4, 110.8 ± 13.3) were lower than those of the control group (31.8 ± 10.1, 136.1 ± 15.1) (all P < 0.05). Compared with the control group, the level of HDL-C (mmol/L)and insulin (mU/L) in moderate and severe group decreased [(1.20 ± 0.30) vs. (1.40 ± 0.27), 2.79 (0.84 - 16.16) vs. 4.92 (0.76 - 16.80), P < 0.05], while the LDL-C (mmol/L) increased [(2.61 ± 0.75) vs. (2.32 ± 0.62), P < 0.05]. The red blood cell counts (× 10(12)/L) and the blood platelet counts (× 10(9)/L) in the mild OSAHS (4.93 ± 0.37, 292.92 ± 75.64) and moderate and severe OSAHS group (5.23 ± 0.22, 292.50 ± 63.05) were significantly higher in contrast to the control group (4.70 ± 0.31, 255.60 ± 69.12) (all P < 0.05), systolic blood pressure (mmHg) in mild group (98.54 ± 10.44) and moderate to severe group (99.13 ± 19.13) was significantly higher compared to control group (87.88 ± 11.37), and the heart rate (beats/min) in moderate to severe group (94.43 ± 10.64) was higher than those in control group (87.12 ± 16.20) (all P < 0.05). The mild OSAHS and moderate and severe OSAHS group had decreased right ventricular internal diameter [(14.24 ± 1.64) mm, (13.17 ± 2.07) mm ], increased main pulmonary artery diameter [(17.05 ± 3.33) mm, (16.33 ± 3.14) mm] and the thickness of right ventricular wall [(3.43 ± 0.26) mm, (3.57 ± 0.20) mm] compared to control group [ (16.10 ± 2.96) mm, (14.11 ± 2.52) mm, (3.32 ± 0.25) mm] (all P < 0.05).</p><p><b>CONCLUSION</b>OSAHS in children may be associated with craniofacial malformations, and may contribute to slow growth and development, elevated blood viscosity and blood pressure, metabolic abnormalities, and change cardiac structure.</p>

Analysis of hepatitis B surface antibody in 3022 children / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To investigate the positive rate of hepatitis B surface antibody (HBsAb) in children.</p><p><b>METHODS</b>Blood samples from 3022 children who received a physical examination in outpatient departments from 2009 to 2011 were subjected to serological test using ELISA to measure the positive rate of HBsAb.</p><p><b>RESULTS</b>The positive rate of HBsAb decreased with age (P<0.01). There was no significant difference in the positive rate of HBsAb between boys and girls (P>0.05), however the positive rate of HBsAb in boys aged one year and over was lower than in girls of the same age (P<0.01). The positive rate of HBsAb in boys aged between 3 and 4 years was higher than in girls of the same age (P<0.01). The positive rate of HBsAb decreased with age in boys, and was lower in those aged two years and over than in those aged one year and over (P<0.01). The positive rate of HBsAb also decreased with age in girls, with significant differences between different age groups (P<0.01).</p><p><b>CONCLUSIONS</b>The positive rate of HBsAb decreases with age in children, so younger children have a higher risk of infection with hepatitis B virus. Serological monitoring of hepatitis B needs to be enhanced.</p>

The effect of chronic intermittent hypoxia on p38MAPK in cerebral tissues of weanling rats / 中国应用生理学杂志

<p><b>AIM</b>To study the effect of chronic intermittent hypoxia on p38MAPK in partial cerebral tissues of weanling rats.</p><p><b>METHODS</b>Randomly, fifty male SD rats (3-week-old-4-week-old) were divided into five groups: 2-week-CIH group (2IH), 4-week-CIH group (4IH), 4-week-recovery group (4F), 2-week-control group (2C) and 4-week-control group (4C). Intermittent hypoxia model was induced by an intermittent hypoxia cabin. The expression of p38MAPK mRNA and the phosphorylation levels of p38MAPK (p-p38 protein) in the hippocampus and prefrontal cortex were measured by RT-PCR or Western blot respectively.</p><p><b>RESULTS</b>No matter in the hippocampus, or in the prefrontal cortex, the expression of p38MAPK mRNA and p-p38 protein in 2IH, 4IH and 4F groups were respectively higher than 2C and 4C groups (P < 0.05, respectively).</p><p><b>CONCLUSION</b>Chronic intermittent hypoxia can activate the p38MAPK in partial cerebral tissues of weanling rats.</p>

Magnetic resonance imaging of the upper airway structure of children with sleep disordered breathing / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To investigate the upper airway structure of sleep-disordered breathing children.</p><p><b>METHODS</b>Seventy three children with obstructive sleep apnea hypopnea syndrome (OSAHS), 53 children with primary snoring (PS) and 40 control subjects underwent pharyngeal magnetic resonance imaging (MRI). Upper airway structure images were analyzed and measured.</p><p><b>RESULTS</b>The cross-section area of the nasopharyngeal and palatopharyngeal airway in subjects with OSAHS and PS are smaller (P < 0.01) than that of the control group. The cross section area of OSAHS patients are smaller than that of PS subjects (P < 0.01). The above parameter of oropharyngeal airway in OSAHS patients is smaller than that of control group (P < 0.01), but no statistic difference compared with that of PS subjects. The cross-section area and length of the adenoid in OSAHS group are bigger and longer than that of PS group (P < 0.01) and bilateral tonsils are larger (P < 0.01); in OSAHS patients the cross-section area of the soft palate is larger and the length of the soft palate is longer (P < 0.01) than that of PS group, while this parameter of PS group is similar to that of the control group. And the maximum width of the soft palate, the cross-section area of bilateral fat pad, bilateral pterygoid and tongue are similar among OSAHS, PS and the control group. The skeletal measurement: the length of H-C2C3 in subjects with OSAHS is longer (P < 0.01); The angle(alpha) in OSAHS patients is smaller (P < 0.01) than that of other 2 groups. The angle (beta), the cross-section area of the mandible, the spine-clivus oblique, the length of the hard palate and the distance of the mandible are similar among the three groups.</p><p><b>CONCLUSIONS</b>In children with OSAHS or PS, the upper airway is restricted by both the adenoid and tonsils; however, the soft palate is also larger in OSAHS, adding further restriction. Otherwise, downward movement of the hyoid bone and decreasing of the angle (alpha) in OSAHS influence laryngopharynx airway. MRI is of clinical significance for evaluating OSAHS children's upper airway.</p>