• Title/Summary/Keyword: p-value

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Diagnostic Performance of HPV E6/E7 mRNA and HPV DNA Assays for the Detection and Screening of Oncogenic Human Papillomavirus Infection among Woman with Cervical Lesions in China

  • Wang, Hye-young;Lee, Dongsup;Park, Sunyoung;Kim, Geehyuk;Kim, Sunghyun;Han, Lin;Yubo, Ren;Li, Yingxue;Park, Kwang Hwa;Lee, Hyeyoung
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.17
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    • pp.7633-7640
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    • 2015
  • Background: Human papillomavirus (HPV) is the most common sexually transmitted infection worldwide and it is responsible for most cases of cervical uterine cancer. Although HPV infections of the cervix do not always progress to cancer, 90% of cervical cancer cases have been found to be associated with high risk HPV (HR-HPV) infection. HPV DNA testing is widely used, along with Papanicolaou (Pap) testing, to screen for cervical abnormalities. However, there are no data on the prevalence of genotype-specific HPV infections assessed by measuring HPV E6/E7 mRNA in women representative of the Chinese population across a broad age range. Materials and Methods: In the present study, we compared the results with the CervicGen HPV RT-qDx assay, which detects 16 HR-HPV genotypes (Alpha-9: HPV 16, 31, 33, 35, 52, and 58; Alpha-7: HPV 18, 39, 45, 51, 59, and 68; and Alpha-5, 6: HPV 53, 56, 66, and 69), and the REBA HPV-ID assay, which detects 32 HPV genotypes based on the reverse blot hybridization assay (REBA) for the detection of oncogenic HPV infection according to cytological diagnosis. We also investigated the prevalence and genotype distribution of HPV infection with a total of 324 liquid-based cytology samples collected in western Shandong province, East China. Results: The overall HPV prevalences determined by HPV DNA and HPV E6/E7 mRNA assays in this study were 79.9% (259/324) and 55.6% (180/324), respectively. Although the positivity of HPV E6/E7 mRNA expression was significantly lower than HPV DNA positivity, the HPV E6/E7 mRNA assay showed greater specificity than the HPV DNA assay (88.6% vs. 48.1%) in normal cytology samples. The prevalence of Alpha-9 (HPV 16, 31, 33, 35, 52, and 58) HPV infection among these women accounted for up to 80.3% and 76.1% of the high-grade lesions detected in the HPV mRNA and DNA tests, respectively. The HR-HPV genotype distribution, based on HPV DNA and E6/E7 mRNA expression by age group in patients with cytologically confirmed lesions, was highest in women aged 40 to 49 years (35.9% for cytologically confirmed cases, Pearson correlation r value=0.993, p<0.001) for high-grade lesions. Among the oncogenic HR-HPV genotypes for all age groups, there was little difference in the distribution of HPV genotypes between the HPV DNA (HPV -16, 53, 18, 58, and 33) and HPV E6/E7 mRNA (HPV -16, 53, 33, 58, and 18) assays. HPV 16 was the most common HPV genotype among women with high-grade lesions. Conclusions: Our results suggest that the HPV E6/E7 mRNA assay can be a sensitive and specific tool for the screening and investigation of cervical cancer. Furthermore, it may provide useful information regarding the necessity for early cervical cancer screenings and the development of additional effective HPV vaccines, such as one for HPV 53 and 58. Additionally, gaining knowledge of HPV distribution may also inform us about ecological changes in HPV after the vaccination.

The Associated Factors with Scaling Experience among Some Workers in Small and Medium-Sized Companies (중소 사업장 근로자의 치석제거 경험 관련요인)

  • Lee, Jae Ra;Han, Mi Ah;Park, Jong;Ryu, So Yeon;Lee, Chul Gab;Moon, Sang Eun
    • Journal of dental hygiene science
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    • v.17 no.4
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    • pp.333-340
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    • 2017
  • The prevalence of periodontal disease was steadily increased. The best prevention methods for periodontal disease are teeth brushing and scaling. The purpose of this study was to investigate the status of scaling experience and related factors among some workers. Total 455 workers in 5 manufacturing companies in Gwangju were selected using convenience sampling method. General characteristics, work-related characteristics, oral health-related characteristics and scaling experience were collected by self-reported questionnaires. Chi-square tests, t-tests and multiple logistic regression analysis were performed to investigate the factors influencing the scaling experience using SPSS software. Statistical significance was defined as a p-value<0.05. The proportion of scaling experience during the past year was 47.0%. In simple analysis, age, current working position, number of oral disease, interest in oral health, use of secondary oral products, oral health screening use, oral health education experience and awareness of scaling inclusion in the National Health Insurance (NHI) coverage were associated with scaling experience. Finally, the odds ratios (ORs) for scaling experience were significantly higher in younger subjects (adjusted OR [aOR], 3.09; 95% confidence internal [CI], 1.60~5.96), assistant manager (aOR, 2.68; 95% CI, 1.55~4.63), subjects with high interest in oral health (aOR, 2.15; 95% CI, 1.02~4.52), subjects with oral health screening use (aOR, 2.76; 95% CI, 1.50~5.11) and awareness of scaling inclusion in the NHI coverage (aOR; 2.91, 95% CI, 1.80~4.72) in multiple logistic regression analysis. Scaling experience was relatively low (47.0%). The related factors with scaling experience were age, working position, use of screening and awareness of scaling inclusion in the NHI coverage. Considering these factors will increase the utilization rate of scaling.

A Study on Zinc and Copper Contents of Korean Traditional Foods (우리나라 전통음식 중 아연과 구리 함량에 관한 조사 연구)

  • 승정자
    • Journal of the East Asian Society of Dietary Life
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    • v.8 no.4
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    • pp.422-429
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    • 1998
  • The content of zinc and copper were analyzed and compared for five favorite traditional Korean dishes. The purpose of the research was to substantiate traditional Korean foods, which are good sources of these two minerals, to emphasize the importance of the minerals and to improve nutritional conditions. Foods were collected from institutional food services and Korean restaurants. The result of the analysis of the minerals are listed below. 1. When the survey was done on the preference and the frequency of intake of 106 Korean traditional dishes, the most popular food item was soybean paste stew (doenjangchigae); the second, barbecued beef (pulgogi): the third, cooked rice with assorted vegetables (pibimpap): the fourth, grilled fishes : the fifth, spicy beef vegetable soup (yukkaejang). The frequency of intake of eating these dishes was also very high. 2. The average one serving portion of each of the five dishes from institutional food services and Korean restaurants are as follows. The average one serving size of cooked rice with assorted vegetables of the two systems were 451.2g and 403.0g; spicy beef vegetable soup, 379.3g and 512.3g; soybean paste stew, 292.0g and 278.8g; barbecued beef, 76.1g and 202.5g: grilled croaker(chogi, fish), 47.5g and 36.5g, and grilled spanish mackerel(samchi, fish), 60.0g and 250.0g. The differences of the average one serving portion between the two systems were very significant. 3. The total average zinc content of each of the five dishes from the two different systems were analyzed. The zinc content of cooked rice ith assorted vegetables from institutional food services was 4.3mg and that from Korean restaurants was 2.9mg; spicy beef vegetable soup, 1. 7mg and 3.2mg: sybean pste stew, 1.4mg and 1.6mg: barbecued beef, 1.9mg and 4.3mg; grilled croaker, 0.5mg and 0.4mg; grilled spanish mackerel, 0.8mg and 2.7mg. The difference between the average of total zinc content of two systems were not statistically significant. 4. The average total copper content of each item from the two different systems were compared. The average total copper content of barbecued beef from institutional food services was 692.4$\mu\textrm{g}$ and that from Korean restaurants was 502.5$\mu\textrm{g}$. The value of the institutional food services system was significantly higher(p<0.05). Spicy beef vegetable soup, 161.1$\mu\textrm{g}$ and 208.3$\mu\textrm{g}$: soybean paste soup, 290.5$\mu\textrm{g}$ and 308.5$\mu\textrm{g}$; barbecued beef, 217.7$\mu\textrm{g}$ and 339.l$\mu\textrm{g}$: grilled croaker, 51.7$\mu\textrm{g}$ and 44.l$\mu\textrm{g}$; grilled spanish mackerel, 92.0$\mu\textrm{g}$ and 265.2$\mu\textrm{g}$. The difference of the two systems was not significant. 5. The zinc contents per 100g each of five traditional Korean dishes were barbecued beef, 2.2mg, grilled spanish mackerel, 1.2mg, grilled croaker, 1.1mg, cooked rice with assorted vegetables, 0.8mg, soybean paste stew, 0.6mg, spicy beef vegetable soup, 0.5mg. The copper contents were; barbecued beef, 203.0$\mu\textrm{g}$, cooked rice with assorted vegetables, 138.7$\mu\textrm{g}$, grilled spanish mackerel, 137.9$\mu\textrm{g}$, grilled croaker, 119.l$\mu\textrm{g}$, soybean paste stew, 105.l$\mu\textrm{g}$, spicy beef vegetable soup, 40.5$\mu\textrm{g}$.

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Variation of rachis branches in rice varieties with different maturing types by various planting times. (벼 작기이동에 따른 조만성별 수상의 착생변이)

  • 심재성
    • Korean Journal of Plant Resources
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    • v.9 no.3
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    • pp.285-290
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    • 1996
  • This experiment was conducted to investigate the variation of adhering primary and secondary rachis branches of panicle in three ecotypes at National Honam Agricultural Experiment Station in 1993. Three ecotypes. Odaebyeo and Sinunbongbyeo as early-maturing type, Cheongmyeongbyeo and Changanbyeo as medium, and Dongjinbyeo and Mangeumbyeo as late-maturing type were used. The treatment were 5 planting times from May 5 to 5 July by 15 day intervals. The number of primary rachis branch in early maturing type recorded high in between May 5 and 20 May as early transplanting. Medium and late-maturing type, however, was found to be have more primary rachis branches at the late time of June 20 transplanting than at the optimum transplanting of Honam area. The number of secondary rachis branch was high between June 5 and 20 June regardless ecotypes. The rate of secondary rachis branch per primary rachis branch was increased with later transplanting time up to June 5, but showed no differences onwards. The number of grain in primary and secondary rachis branches were low in transplanting time of May 5 regardless ecotype but high in late transplanting time by July 5. Densinty of seed sets was found to be higher in late transplanting than in early transplating;early-maturing type showed high in July 5 and 20 June in medium-late maturing type respectively.

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Quality Characteristics of Soup with Whole Milk Powder and Pleurotus eryngii Powder (전지분유와 새송이버섯 분말을 함유한 스프의 품질특성)

  • Back, Su-Yeon;Kim, Sung Soo;Lim, Sang-Dong;Do, Jeong-Ryong
    • Journal of Dairy Science and Biotechnology
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    • v.35 no.2
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    • pp.113-119
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    • 2017
  • This study investigated the quality characteristics of cream soup added with Pleurotus eryngii powder. Pleurotus eryngii was dried in a hot air dryer at $40^{\circ}C$ for 8 hours and at $60^{\circ}C$ for 8 hours. The dried Pleurotus eryngii was pulverized using a pin mill, and the powder was sieved through a 60~100 mesh. Sensory evaluations of cream soup added with different-sized particles of Pleurotus eryngii powder were performed. Cream soup added with Pleurotus eryngii powder of particles below $150{\mu}m$ showed good appearance, taste, and mouth-feel. Quality characterization of cream soup added with 5~20% Pleurotus eryngii powder showed that L value decreased with increasing Pleurotus eryngii, whereas a and b values increased. Sensory evaluations revealed that cream soup with 15% Pleurotus eryngii powder had significantly better taste, mouth-feel, and overall acceptability (p<0.05) than other samples. Thus, cream soup with 15% Pleurotus eryngii powder of particle size below $150{\mu}m$ was the most desirable and could be successfully used as convenience food in the food processing industry.

Effect of Sample Preparation on Predicting Chemical Composition and Fermentation Parameters in Italian ryegrass Silages by Near Infrared Spectroscopy (시료 전처리 방법이 근적외선분광법을 이용한 이탈리안 라이그라스 사일리지의 화학적 조성분 및 발효품질 평가에 미치는 영향)

  • Park, Hyung Soo;Lee, Sang Hoon;Choi, Ki Choon;Lim, Young Chul;Kim, Jong Gun;Seo, Sung;Jo, Kyu Chea
    • Journal of Animal Environmental Science
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    • v.18 no.3
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    • pp.257-266
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    • 2012
  • Near infrared reflectance spectroscopy (NIRS) has become increasingly used as a rapid, accurate method of evaluating some chemical constituents in cereal and dired animal forages. Analysis of forage quality by NIRS usually involves dry grinding samples. Costs might be reduced if samples could be analyzed without drying or grinding. The objective of this study was to investigate effect of sample preparations on prediction ability of chemical composition and fermentation parameter for Italian ryegrass silages by NIRS. A population of 147 Italian ryegrass silages representing a wide range in chemical parameters were used in this investigation. Samples were scanned at 1nm intervals over the wavelength range 680-2500 nm and the optical data recorded as log 1/Reflectance (log 1/R) and scanned in oven-dried grinding and fresh ungrinding condition. The spectral data were regressed against a range of chemical parameters using partial least squares (PLS) multivariate analysis in conjunction with four spectral math treatments to reduced the effect of extraneous noise. The optimum calibrations were selected on the basis of minimizing the standard error of cross validation (SECV) and maximizing the correlation coefficient of cross validation (${R^2}_{CV}$). The results of this study show that NIRS predicted the chemical parameters with high degree of accuracy in oven-dried grinding treatment except for moisture contents. Prediction accuracy of the moisture contents was better for fresh ungrinding treatment (SECV 1.37%, $R^2$ 0.96) than for oven-dried grinding treatments (SECV 4.31%, $R^2$ 0.68). Although the statistical indexes for accuracy of the prediction were the lower in fresh ungrinding treatment, fresh treatment may be acceptable when processing is costly or when some changes in component due to the processing are expected. Results of this experiment showed the possibility of NIRS method to predict the chemical composition and fermentation parameter of Italian ryegrass silages as routine analysis method in feeding value evaluation and for farmer advice.

A Study of both Femurs Bone Densitometry's Difference for Exercise (운동유무에 따른 양측 대퇴골 골밀도 차이에 관한 연구)

  • Jang, Eun-Ju;Kim, Eun-Hye;Kim, Ho-Sung;Shin, Sang-Ki
    • The Korean Journal of Nuclear Medicine Technology
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    • v.13 no.1
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    • pp.73-76
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    • 2009
  • Purpose: Bone mineral densitometry test region advised by ISCD (International Society for Clinical Densitometry) is both site in case of femur, whereas our medical center measures left femur except for few extraordinary cases. It is said that right-handers had higher mean femur BMD in the left side than in the right side, but the factor influence the femur BMD is unknown. Thus, we investigate whether testing left femur only is a adequate clinical diagnosis. Materials and Methods: Subjects were 209 right-handers and 20 left-handers patient in Asan Medical Center from July to August, 30 to 70 years of age ($51{\pm}6.7$). Subjects fill out the questionnaire on hand preference and taking regular exercise. Total BMDs of bilateral femur were measured with GE Lunar Prodigy advance densitometer, and the statistical soft ware SPSS 12.0 for windows was used for statistical analysis. Results: In the total sample of the exercise group (n=127), the difference of both femur mean BMDs are $0.001{\pm}0.127\;g/cm^2$ and the non-exercise group's (n=102) both femur difference is $0.002{\pm}0.126\;g/cm^2$, there is no significant difference. And in exercise group, classified according to hand preference, each t-value is shown at right handers (n=114) are 0.65, left handers (n=13) are -0.39. Also, In non-exercise group, right handers (n=95) are -0.78, left handers (n=7) are -0.64. In the 95% confidence limit, there was no statistically significant difference (p>0.05). Conclusions: In recently researchs, there have been differences between both femurs according to hand preference. However, Our study have no significant difference both femurs BMDs. Therefore we suggest that BMD measurement of femur has no problem only one side, except for particular case like femur operation.

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Results of Radiotherapy for the Uterine Cervical Cancer (자궁경부암의 방사선치료성적)

  • Kim, Chul-Yong;Choi, Myung-Sun;Suh, Won-Hyuck
    • Radiation Oncology Journal
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    • v.6 no.1
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    • pp.63-73
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    • 1988
  • One hundred fifty-four patients with the carcinoma of the uterine cervix were studied retrospectively to assess the result and impact of treatment at Department of Radiation Oncology, Korea University, Hae-Wha Hospital from Feb 1981 through Dec. 1986. Prior to radiotherapy, the patients were evaluated and staged by recommendation of FIGO including physical examination, pelvic examination, cystoscopy, rectosigmoidoscopy, chest X-ray, IVP. Ba enema. Also, an additional pelvic CT scan was obtained for some of the patients. The patients were treated by radiotherapy alone or adjuvant postoperative irradiation; in case of radiation therapy only, whole pelvic irradiation was given with Co-60 teletherapy unit via AP and PA parallel opposing fields or 4-oblique fields, 180 cGy per day, 5 days per week and intracavitary insertion was performed. In satges Ia, Ib, and IIa with small primary lesion, external irradiation was initially given to pelvis up to $2,000\~3,000\;cGy/2frac{1}{2}\;-3frac{1}{2}$ weeks and then intracavitary insertion was performed using Fletcher-Mini-Declos Applicator with cesium-137 cources and followed by external irradiation of $1,000\~2,000\;cGy/1frac{1}{2}\;-2frac{1}{2}$weeks via AP and PA parallel opposing fields with midline shield to spare of bladder and rectum. However, if the primary lesion is large, external irradiation was given without midline shield. More than stages IIb, the patients were treated by external beam irradiation up to 5,400cGy/30f for 6 weeks via 4-oblique portals and at the dose of 5,040cGy/28f the field was cut 5cm from the top margin for spare of small bowel, and followed by intracavitary irradiation, If there was residual tumor an additional dose of $900\~l,200cGy/5\~7f$ was given to parametrium and/or residual tumor area. Total dose of radiation to A and B-point were as follows; A-point; In early stages, Ia, Ib, IIa; $8,000\~9,000$ B-point $5,000\~6,000 cGy$ A-point; In advanced stages IIb, IIIa, IIIb; $9,000\~10,000$ B-point $60,000\~7,000cGy$ The results were obtained and as fellows; 1 The patients distribution according to FIGO staging system were stage Ia 6, Ib 27, IIa 28, IIb 54, IIIa 12, IIIb 18, and stage IVa 9. 2. Value of CT scan were demonstration of cervix tumor mass, parametrial and pelvic side wall tumor spread, pelvic and inguinal lymph nodes metastases, and hydronephrosis. Three dimensional quantitative demonstration of tumor volume is also important in planning radiation therapy. Another advantage of CT scan was detection of recurrent tumor after radiation or surgery. 3. Local control rate of tumor according to the size was $91.3\%$ for less than 5cm in size and $44.6\%$ in tumor over 5cm (p<0.0068). 4. Thirty out of 50 recurrent sites has locoregional failures and 17 cases has distant metastases. And the para-aortic lymph nodes were the most common site for distant metastases. 5. The most common complication was temporal rectal bleeding which was controlled most by conservative management. However, 4 patients required for endoscopic cauterization. 6. The 5-year survival rates showed; stage la and Ib $95\%,\;stage\;IIa\;81\%\;stage\;lIb\;67\%,\;stage\;IIIa\;37.7\%,\;stage\;IIIb\;23\%$ and 3-year survival rate of stage IVa showed $11.6%$, retrospectively.

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A Comparison of Clinical Efficacy of Weaning Method Between the Mode of Intermittent Mandatory Ventilation and Intermittent Mandatory Ventilation Plus Pressure Support (기계적 호흡 치료로부터의 이탈방법으로서 Intermittent Mandatory Ventilation 단독 사용과 Pressure Support를 병용한 Intermittent Mandatory Ventilation의 비교)

  • Choi, Jeong-Eun;Koh, Youn-Suck;Cho, Won-Kyoung;Lim, Chae-Man;Kim, Woo-Sung;Park, Pyung-Hwan;Choi, Jong-Moo;Kim, Won-Dong
    • Tuberculosis and Respiratory Diseases
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    • v.41 no.4
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    • pp.372-378
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    • 1994
  • Background: Pressure support ventilation(PSV) is a new form of mechanical ventilatory support that assists spontaneous inspiraory effort of an intubated patient with a clinician-selected amount of positive airway pressure. Low level pressure support during inspiration can overcome the resistive component of inspiratory work imposed by an endotracheal tube. However the clinical efficacy of PSV as a weaning method has not been established yet. Object: The aim of study was to evaluate the efficacy of PSV when it is added to intermittent mandatory ventilation(IMV) in facilitating weaning precess compaired to IMV mode alone. Method: When the subject patients became clinically stable with their arterial blood gas analysis in acceptable range, they underwent weaning process either by IMV alone or by IMV plus PSV. The level of pressure support was held constant throught the weaning period. For the patients who required mechanical ventilation for less than 72 hr, 2h weaning trial was performed with IMV rate starting from 6/min. For the patients who required mechanical ventilation more than 72 hr, 7 hr weaning trial was performed with IMV rate starting from 8/min. For the patients who failed three consecutive trials of weaning, retrial of weaning was attempted over 3 days with IMV rate starting from 8/min. Clinical characteristics, APACHE II score and nutritional status were compared. For all patients, heart rate, mean blood pressure and respiratory rate were mornitored for 48 hrs after weaning trial started. Results: The total number of weaning trial was 37 in 23 patients(18 by IMV, 19 by IMV+PSV). Total ventilation time, APACHE II score and nutritional status were not statistically different between the two groups. The weaning success rate were not statistically different(38.3% by IMV, 42.1% by IMV+PSV) and the changes of mean blood pressure, heart rate, respiratory rate during first 48 hours were not different between the two groups. Conclusion: Low level PSV when added to IMV for weaning trial does not seem to improve the success rate of weaning from mechanical ventilation. PSV at 10cm $H_2O$ did not induce significant physiologic changes during weaning process.

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Determination of Short Term Prognosis Among Chronic Obstructive Lung Disease with Acute Respiratory Failure According to Simplified Acute Physiology Score (만성 폐쇄성 폐질환에서 급성 호흡부전 발생시 Simplifed Acute Physiology Score에 따른 단기예후의 평가)

  • Lee, Sang-Pyo;Sung, Yun-Up;Kim, Sang-Hoon;Kim, Bong-Sik;Kim, Young-Jun;Park, In-Won;Choi, Byung-Whui;Hue, Sung-Ho
    • Tuberculosis and Respiratory Diseases
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    • v.40 no.5
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    • pp.532-539
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    • 1993
  • Background: Physician's estimates of patient survival often influence clinical decisions, especially those near the end of life. In addition. clinical decisions frequently reflect trade-offs between morbidity and length of survival. As a result, accurate estimates of survival can be extremely useful in clinical decision. When the episode of acute respiratory failure in chronic obstructive lung disease, evaluation of the severity of the condition and short term prognosis is difficulit based on the available clinical or paraclinical data at the time of admission. Method: In this study, we performed a retrospective study in Chung Ang University Hospital, 74 patients (51 males, 23 females), who were hospitalized with chronic obstructive lung disease with acute respiratory failure from 1980 to 1992. We evaluated these patients to determine lung prognostic factors at time of admission in the Intensive Care Unit (ICU) that predict short term survival, and to determine the possible application of the Simplified Acute Phsiology Score (SAPS) to this population, All patients were treated with similar regimen during the hospitalization. Results: The results were as follows: 1) Hospital mortality was 34%(25/74 patients) and surival rate was 66%(49/74 patients) in COPD with acute respiratory failure. The prognosis of the older age was much poorer than those of the young age. 2) There was no difference in mortality according to the results of basal pulmonary test and arterial blood gas analysis. 3) The SAPS at admission was higher in those patients who expired(10.8) than the survived(6.5), and there was positive correlation between SAPS and mortality (r=0.91, p<0.05). 4) Prognostic factors in acute respiratory failure complicating COPD which were identifiable at time of admission to the ICU were as follows: cachexia, encephalopathy, serum creatinine and phosphate. Conclusion: In conclusion, the SAPS might have a good prognostic value for determination of short term survival among chronic obstructive lung disease with acute respiratory failure.

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