The obesity epidemic is a worldwide problem. Factors predisposing to obesity include genetics, race, socioeconomic conditions, birth by cesarean section, and perinatal antibiotic use. High protein (HP) content in infant formulas has been identified as a potential culprit predisposing to rapid weight gain in the first few months of life and leading to later obesity. In a large multicountry study the effects of lower protein (LP) formula (1.77 and 2.2 g protein/100 kcal, before and after the 5th month, respectively) were compared to those of higher protein (2.9 and 4.4 g protein/100 kcal, respectively). Results indicated that at 24 months, the weight-for-length z score of infants in the LP formula group was 0.20 (0.06, 0.34) lower than that of the HP group and was similar to that of the breastfed reference group. The authors concluded that a HP content of infant formula is associated with higher weight in the first 2 years of life but has no effect on length. LP intake in infancy might diminish the later risk of overweight and obesity. At 6 years of age HP children had a significantly higher body mass index (by 0.51; 95% confidence interval [CI], 0.13-0.90; p=0.009) and a 2.43 (95% CI, 1.12-5.27; p=0.024) fold greater risk of becoming obese than those who received the LP. In conclusion, several factors may influence development of metabolic syndrome and obesity. Breastfeeding should always be encouraged. An overall reduction of protein intake in formula non breastfed infants seems to be an additional way to prevent obesity.
Background: Various pain treatments have been administered to relieve patients suffering from postoperative pain. Among these, epidural or intravenous opiate administration is by far the most widly applied treatment in recent times. However it was our objective to device a more effective and safe means of postoperative analgesia. Methods: We studied 110 healthy pregnant women scheduled for delivery by elective cesarean section. EPI(epidural)-group is administered morphine 1.5 mg and 0.25% bupivacaine 8 ml as bolus dose, then, a mixture of morphine 6 mg and 0.125% bupivacaine 95 ml as continuous dose via epidural route. IV(intravenous)-group is administered nalbuphine 6~7 mg as bolus dose and nalbuphine 60~70 mg with 0.9% normal saline 90 ml as continuous dose via intravenous route, at the rate of 2 ml/hr for 2 days. We compared the analgesic efficacy and side effects of these two groups using VAS pain score and time duration of constant pain level. Results: VAS pain score was similar between the two groups, but pain duration was significantly shorter in EPI-group. Incidence of pruritus was significantly lower with the IV-group, of nausea and vomiting were similar for both groups, no respiratory depression for either groups. Conclusions: Although the EPI-group had better analgesic efficacy, the IV-group had lower incidence of side effects, and simplicity and safety methods of operation. Therefore, We propose further research and consideration of administering the kinds and doses of those medications prescribe to the IV group in conjunction with other drugs for safer and better efficacy of postoperative analgesia.
Background : Surgical site infection(SSI) is one of the important nosocomial infections with pneumonia, urinary tract infection. SSI increases mortality, morbidity, length of stay, and costs for postoperative patients. The purpose of this study was to estimate length of stay(LOS) and health care costs from SSI using the large observational data. The ultimate objective was to show the effect of prevention of SSI. Method : This study used antibiotic prophylaxis evaluation data and claims data of the HIRA(Health Insurance Review and Assessment Service). The study population included 18,361 patients who underwent gastric surgery, endoscopic cholecystectomy, colon surgery, hysterectomy, cesarean section in nationwide hospitals from August to October 2007. SSI group and non-SSI group were matched according to propensity score resulted from logistic regression. The paired t-test was used to compare the difference of the LOS and health care costs between SSI group and non-SSI group. Results : The 598 cases of SSI were detected of total subjects, and the crude SSI rate was 3.3%. For each surgery, SSI rates were 5.5% for gastric surgery, 4.7% for cholecystectomy, 6.6% for colon surgery, 2.6% for hysterectomy, and 1.6% for cesarean section. The 596 cases of SSI and the 596 cases of non-SSI were matched by propensity score. The LOS of SSI group was longer than that of non-SSI group, and the difference was statistically significant. Health care costs of SSI group was more than that of non-SSI group which was significant. Conclusions : SSI increased apparently the LOS and healthcare costs. The economic loss might affect the cost of national healthcare as well as patients and hospitals. This study provided the evidence that the healthcare expenditure could be reduced by preventing SSI.
Many clinical and laboratory experiments have been developed to prevent or decrease post-operative pain. One of these methods is pre-operative administration of opioid. Recently there have been differing and debatable results reported of pre-operative treatment for post-operative pain management. It was our study to determine whether pre-operative epidural fentanyl prevented central facilitation or wind up of spinal cord from nociceptive afferent input through c-fibers. We evaluated the effect of epidural fentanyl 50 mcg 10 minutes before operation and 10 minutes before the end of surgery. 28 parturient women for Cesarean Section were randomly allocated to receive the epidural fentanyl either at 10 minutes before operation (Group 1, n=14) or 10 minutes before the end of surgery (Group 2, n=14). All of the 28 parturient women were anesthetized with epidural block using (22 ml of) 2% lidocaine supplemented with light general anesthesia ($N_2O$ 2 L/min-$O_2$, 2 L/min), we controlled post-operative pain with epidural PCA(patient controlled analgesia) infusion of meperidine and 0.07% bupivacaine. The action duration of epidural fentanyl from the end of surgery to the first requirement of analgesics with epidural PCA were not significantly different between the two groups. No significant differences between two groups were observed in VAS pain score at 1, 2, 3, 6, 12, 24, and 48 hours after the operation. The number of self administration of narcotics with PCA during 48 hours after surgery were the same between the two groups. The hourly infusion rates of demerol were the same. Pre-operative administration of fentanyl was not clinically effective compared to administration just before the end of surgery for postoperative pain control.
Opioids produce strong analgesic effect result with some side effects such as nausea, vomiting, urinary retention, somnolence, and respiratory depression. Nalbuphine, an agonist-antagonist has, at low doses, an analgesic potency comparable to morphine with little side effects. Analgesic effect after continuous infusion of fentanyl-ketorolac-droperidol, or $Nubain^{(R)}$-ketorolac-dropertiodl combination in Cesarean section patients were assessed by numerical rating scale (NRS) and Prince Hednry scale (PHS). The patients were divided into two groups. Each group consists of 30 patients. Group 1 received 20 ${\mu}g$ of fentanyl the end of surgery. And then continuously infused with additional 380${\mu}g$ of fentanyl plus 120 mg of ketorolac and 2.5 mg of droperidol. Group 2 initially received 2 mg of $Nubain^{(R)}$ at the end of surgery and the remaining dose of $Nubain^{(R)}$ 38 mg plus ketorolac 120 mg and droperidol 2.5 mg was continuously infused. With all patients, initial dose of drug was administered by bolus of i.v. injection and the remaining dose was administered via i.v. using a Baxter Two $Infusor^{(R)}$. Pain scores and side effects were recorded at the time of recovery room arrival, and at interval of 30 min, 1 hr, 6 hr, 14 hr, 24 hr, 48 hr after start of continuous infusion. No significant difference was found between the pain scores and side effects of both groups although pain control effect was excellent in both groups. We concluded that $Nubain^{(R)}$ could be an alternative to fentanyl for postoperative pain control.
The purpose of this study was to examine the effects of a warmed blanket on relieving the cold discomfort after Cesarean Section delivery. A nonequivalent control group pre-test/post-test design was used for this quasi-experimental study. Sixty women were recruited for this study and divided by two groups: experimental and control groups. Blankets warmed to $40^{\circ}C$ were applied to the women in the experimental group for one hour and unwarmed blankets were applied to the control group. Using Abbey's shivering scales, subjective thermal sensation score, and Celsius mercury thermometer, cold discomfort was measured at four time points: 1) baseline measure (at the point the blanket was applied) 2) 15 min. later, 3) 30 min. later, and 4) 45 min. after application. Data were analyzed using SPSS/WIN and t-test and MANOVA were used to examine the effects of the warmed blanket for relieving cold discomfort. The results of the study are as follows. The experimental group had less cold discomfort than the control group(Wilts's value =0.580, p=0.000) at the 45 minute point after blanket application. the Experimental group reported less shivering and subjective thermal sensation than the control group. Shivering scores showed significant differences between the two groups at each of the four time points (baseline, 15 min., 30 min., and 45 min.) and subjective thermal sensation score showed significant differences between two groups at 45 minutes. after blanket application. In conclusion, the application of a warmed blanket was more effective on shivering and subjective thermal sensation than body temperature measured by objective means. Because women in this study were in the normal range of body temperature, differences in the objective body temperature between the two groups may not be sensitive enough to be detected. Even though differences in objective body temperature were not found, reduced subjective discomfort for low body temperature may be a sufficient significant finding in for nurse clinicians to utilize this method on their practice. Further studies in this area are needed to support these findings.
Objectives: The purpose of this study is to examine the factors affecting the rate and duration of breastfeeding. Methods: We analyzed the data from the year 2000 Korea National Fertility Survey that was collected through direct interviews. In particular, the mothers who delivered their last child and the child was under 1 year of age from January 1998 to June 2000 (N=1,066) were analyzed via a logistic model to assess the factors affecting the breastfeeding rate. Among the study subjects, those who had initiated breastfeeding (N=740) were analyzed through Cox's proportional hazard model to evaluate the factors affecting the duration of breastfeeding. Results: The multivariate logistic model showed that the delivery type and the baby's birth-weight have a statistically significant influence on the breastfeeding rate. Women who delivered their babies through Cesarean section were less likely than others to breastfeed. In contrast, the women whose babies weighed 2.5Kg or more were more likely than others to breastfeed. The results obtained from the survival analysis are as follows: the higher the mother's education level, the shorter is the breastfeeding duration. The mother's work status played a significant role in the early termination of breastfeeding. Women aged 35 or older showed a longer breastfeeding duration than the younger age groups, whereas the maternal age was not a significant factor in affecting whether or not a mother would breastfeed. Conclusions: Reducing the cases of operative delivery (Cesarean section) and low weight births, enlightening young and highly educated women on breastfeeding and improving the environment for breastfeeding on the job are important strategies to encourage women to breastfeed.
Background : Critical pathway is an optional sequencing and timing of interventions by physicians, nurses, and other staff for a particular diagnosis or procedure, designed to minimize delays and resource utilization, and to maximize quality of care; abbreviated versions of case management plans that show critical outcome and key incidents that occur in a predictable and timely fashion to achieve an appropriate length of stay. This study is to develop a critical pathway for vaginal delivery and cesarean section to assess the degree of contentment of the patients and medical personnel and to implement clinical application to see how we could meet the need to guide patients to achieve continuum of care. Method : Critical pathways were developed for normal vaginal delivery and casarean section. LOS(length of stay) target for vaginal delivery was 1 day after delivery & 5 days after C-section. It was distributed to the mother at the OPD and explained thoroughly. It was applied when patients got into the Labor & Delivery Floor. We applied total of 42 patients (30 normal deliveries & 12 C-sections) from February to March, 2000. We performed patient satisfaction survey to all 42 patients, 24 nurses, and 7 residents for internal customer satisfaction. Results : Twenty six patients out of 42 responded to the survey. Twenty one patients out of 26 answered satisfactory. Eighty four percent of 21 respondents replied Critical pathway worked very well. Treatment column got the most compliance. Eleven out of 31 employees thought critical pathway is very helpful for the patient care. Eighteen people didn't see any difference. In their opinion, treatment got the least compliance, which is the contrary to patients opinion. Fifty eight percent of respondents thought that critical pathway can expedite early discharge. Conclusion : Patient satisfaction was higher than we expected but we still need to revise the form. It is recommended to analyze the cost and variance check in the future.
Background: The purpose of this study was to determine whether there is any advantage for a continuous background infusion during patient controlled epidural analgesia(PCEA) for postoperative pain control. Methods: 60 patients scheduled for elective cesarean section under epidural anesthesia were assigned randomly in a double-blind fashion to receive fentanyl and bupivacaine by PCEA with or without background infusion for 48 hours postoperatively. Results: Total amount of fentanyl and bupivacaine consumption and degree of sedation were not significantly different between the two groups. Visual analogue scale(VAS) pain scores at 24, 36, and 48h and sleep disturbance were significantly lower in background infusion group. Conclusion: Administration of fentanyl with bupivacaine by continuous background infusion is appropriate for PCEA for postcesarean section pain control.
Objectives: To examine the prophylactic antibiotic use in reducing surgical site infection. Methods: This was a retrospective study for patients aged 18 years and older who underwent gastrectomy, cholecystectomy, colectomy, cesarean section and hysterectomy. The data source was quality assessment data of the Health Insurance Review & Assessment Service gathered from medical records of 302 national hospitals. Prophylactic antibiotic use was defined as: timely antibiotic administration or inappropriate antibiotic selection. We performed hierarchical logistic regression to examine the association between prophylactic antibiotic use and surgical site infection with adjustment for covariates. Results: The study population consisted of 16 348 patients (1588 gastrectomies, 2327 cholecystectomies, 1,384 colectomies, 3977 hysterectomies and 7072 cesarean sections) and surgical site infection was identified in 351 (2.1%) patients. The rates of timely antibiotic administration and inappropriate antibiotic selection varied according to procedures. Cholecystectomy patients who received timely prophylactic antibiotic had a significantly reduced risk of surgical site infection compared with those who did not receive a timely prophylactic antibiotics (OR 0.64, 95% CI=0.50-0.83), but no significant reduction was observed for other procedures. When inappropriate prophylactic antibiotics were given, the risk of surgical site infection significantly increased: 8.26-fold (95% CI=4.34-15.7) for gastrectomy, 4.73-fold (95% CI=2.09-10.7) for colectomy, 2.34-fold (95% CI=1.14-4.80) for cesarean section, 4.03-fold (95% CI=1.93-8.42) for hysterectomy. Conclusions: This study examines the association among timely antibiotic administration, inappropriate antibiotic selection and surgical site infection. Patients who received timely and appropriate antibiotics had a decreased risk of surgical site infection. Efforts to improve the timing of antibiotic administration and use of appropriate antibiotic are needed to lower the risk of surgical site infection.
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