Effectiveness and Safety of Computer-controlled Periodontal Ligament Injection System in Endodontic Access to the Mandibular Posterior Teeth

Objective To evaluate the effectiveness and safety of a computer-controlled periodontal ligament （PDL） injection system to the local soft tissues as the primary technique in endodontic access to mandibular posterior teeth in patients with irreversible pulpitis. Methods A total of 162 Chinese patients who had been diagnosed with irreversible pulpitis in their mandibular posterior teeth without acute infection or inflammation in the periodontal tissues were enrolled in this clinical study. The patients were divided into 3 groups according to the position of the involved tooth： the premolar group （PM, z2=38）, first molar group （FM, n=66）, and second molar group （SM, n=58）. All the patients received computer-controlled PDL injection with 4% articaine and 1 ＇ 100 000 epinephrine. Immediately after the injection, endodontic access was performed, and the degree of pain during the treatment was evaluated by the patients using Visual Analogue Scale for pain. The success rates were compared among the 3 groups. The responses of local soft tissues were evaluated 3-8 days and 3 weeks after the procedure. Results The overall success rate was 76.5%. There was a significant difference in success rates among the PM, FM, and SM groups （92.1%, 53.0%, 93.1%, respectively; 2 X =34.3, P〈0.01）. Both the PM and SM groups showed higher success rates than that of the FM group （v=l, f=16.73, P〈0.01, v=l, Z = 4.5, X2 2 P〈0.01）. No irreversible adverse effects on the periodontal soft tissues at the injection sites were observed in the follow-up visits in any of the groups. Conclusion The computer-controlled PDL injection system demonstrates both satisfactory anesthetic effects and safety in local soft tissues as primary anesthetic technique in endodontic access to the mandibular posterior teeth in patients with irreversible pulpitis.     

生命体征检测仪与电子病历数据库对接的设计与实现

本文介绍了将电子生命体征检测仪和无线网络技术用于记录病人体温、脉搏、呼吸及血压的三测单数据并传入电子病历数据库的设计思路和实现步骤。     

The experiences of mothers in breastfeeding their very low birth weight infants

Title. The experiences of mothers in breastfeeding their very low birth weight infants. Aim. This paper is a report of a study of the breastfeeding experience of mothers of very low birth weight babies. Background. Very low birth weight babies, being born preterm, are at risk for feeding difficulties. Medical complications may prolong their hospital stays and further delay their progression towards oral feeding. Many studies have focused on the benefits of breastfeeding to very low birth weight babies, but very few have explored the breastfeeding experiences of their mothers. Method. Data were collected between 2005 and 2007. In‐depth interviews were conducted during home visits with 31 mothers who breastfed their very low birth weight babies. Following her baby’s discharge from hospital, each mother was interviewed twice about her breastfeeding experience. The data were analysed using qualitative content analysis. Findings. Five themes were identified from the mothers’ reports: wanting to compensate, maintaining motivation and connectedness, needing ‘extra helping hands’, controlling emotions and matching baby’s individual pace. Mothers’ self‐blaming provoked them to breastfeed their very low birth weight babies to compensate babies for the harm caused by them. These mothers learned how to express breast milk and this served as an important vehicle that gradually connected them to their babies. Conclusion. Breastfeeding a very low birth weight baby is a challenging and exhausting experience for the mother. A better teaching protocol for breastfeeding and an improved breastfeeding ethos need to be implemented in the neonatal intensive care unit and special care nursery to support families of very low birth weight infants.     

Evaluating the effects of an Internet education programme on newborn care in Taiwan

Aim. The objectives of this study were to evaluate an Internet education programme provided to primigravida in the third trimester of pregnancy with the aim of enhancing mothers’ knowledge about newborn care and increasing their maternal confidence. Background. Shorter hospital stays have had an impact on the traditional role of mother–baby nurses in providing education about parenting to their parturient women. Internet education is an efficient way to provide nursing instruction. Design. A randomised controlled trial was used. A total of 118 women receiving prenatal care in a hospital clinic who met study criteria and who consented were assigned randomly to intervention and control groups. The study was conducted at a hospital in Taiwan. Methods. The target population was women at 32–34 weeks gestation, using the Internet on a regular basis. The primigravida were randomly assigned to either the control group (n = 57) or the experimental group (n = 61). Two primary outcome measures were newborn‐care knowledge and maternal confidence. Results. The changes in newborn‐care knowledge were 7·21 for the experimental group, compared with 1·95 for the control group; the difference between the least‐squares means computed by ancova was 5·73 and statistically significant (p < 0·001). The changes in maternal confidence were 8·46 for the experimental group and 3·05 for the control group; the difference between the least‐squares means computed by ancova was 5·94 and statistically significant (p < 0·001). Conclusion. Results suggest that Internet education about newborn care may contribute to greater care knowledge and maternal confidence. Relevance to clinical practice. Internet newborn‐care education programmes can achieve success in promoting newborn care and provide health professionals with evidence‐based intervention.