http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Brain Metastases from Cholangiocarcinoma: a First Case Series in Thailand
Chindaprasirt, Jarin,Sookprasert, Aumkhae,Sawanyawisuth, Kittisak,Limpawattana, Panita,Tiamkao, Somsak Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5
Background: Brain metastasis from cholangiocarcinoma (CCA) is a rare but fatal event. To the best of our knowledge, only few cases have been reported. Herein, we report the incident rate and a first case series of brain metastases from CCA. Methods: Between January 2006 and December 2010 5,164 patients were treated at Srinagarind hospital, Khon Kaen University; of those, 8 patients developed brain metastasis. Here we reviewed clinical data and survival times. Results: The incident rate of brain metastases from CCA was 0.15%. The median age of the patients was 60 years. Tumor subtypes were intrahepatic in 6 and hilar in 2 patients. All suffered from symptoms related to brain metastasis. Three patients were treated with whole-brain radiation therapy (WBRT), one of whom also underwent surgery. The median survival after the diagnosis of brain metastasis was 9.5 weeks (1-28 weeks). The longest survival observed in a patient in RPA class I with two brain lesions and received WBRT. Conclusion: This is a first case series of brain metastases from CCA with the incident rate of 0.15%. It is rare and associated with short survival time.
Chindaprasirt, Jarin,Wanitpongpun, Chinadol,Limpawattana, Panita,Thepsuthammarat, Kaewjai,Sripakdee, Warunsuda,Wirasorn, Kosin,Sookprasert, Aumkhae Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.2
Background: Febrile neutropenia (FN) is a serious complication following chemotherapy and is associated with significant mortality and financial expenditure. The aim of this study was to evaluate risk factors for longer length of stay (LOS) and mortality and cost of treatment among hospitalized adults with cancer who developed febrile neutropenia in Thailand. Materials and Methods: Information on illness of inpatients and casualties came from hospitals nationwide and from hospital withdrawals from the 3 health insurance schemes in fiscal 2010. The data covered 96% of the population and were analyzed by age groups, hospital level, and insurance year schemes in patients with febrile neutropenia. Results: A total of 5,809 patients were identified in the study. The mortality rate was 14%. The median LOS was 8.67 days and 69% of patients stayed for longer than 5 days. On bivariate analysis, age, cancer type, and infectious complications (bacteremia/sepsis, hypotension, fungal infections, and pneumonia) were significantly associated with longer LOS and death. On multivariate analysis, acute leukemia and infectious complications were linked with longer LOS and death significantly. The median cost of hospitalized FN was THB 33,686 (USD 1,122) with the highest cost observed in acute leukemia patients. Conclusions: FN in adult patients results in significant mortality in hospitalized Thai patients. Factors associated with increased mortality include older age (>70), acute leukemia, comorbidity, and infectious complications.
Burdens among Caregivers of Older Adults with Advanced Cancer and Risk Factors
Chindaprasirt, Jarin,Limpawattana, Panita,Pakkaratho, Pornvaree,Wirasorn, Kosin,Sookprasert, Aumkhae,Kongbunkiat, Kannikar,Sawanyawisuth, Kittisak Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.4
Family caregivers of older cancer patients face many challenges in managing illness. The burden impacts physical, emotional, spiritual, and social health. The objective of this study was to identify burden among caregivers of older patients with advanced cancer, and associated factors. Materials and Methods: Caregivers of older cancer patients were randomly interviewed from March-September 2012. Information on baseline characteristics and caregiver burden using the Zarit Burden Inventory (ZBI) was collected. Descriptive statistics were used to analyze baseline data, with univariate and multiple linear regression to analyze factors associated with higher burden. Results: One hundred and fifty participants were assessed. The mean ZBI was $19.2{\pm}12.9$ (95%CI, 17.1, 21.2). Two-thirds of caregivers reported no burden (63%) and the main impact variable on ZBI was guilt. High burdens were associated with single caregiver, relationship with the patient as siblings, presence of migraines, and cancer types of the patients. Conclusions: Caregiver burden of Thai cancer patients is low. This unexpected small number could be the result of the socio-cultural viewpoint. Assessment of caregivers and focusing on related factors should be incorporated into treatment plans.
Sumrerng Rukzon,Prinya Chindaprasirt 사단법인 한국계산역학회 2009 Computers and Concrete, An International Journal Vol.6 No.5
This paper presents a study of the strength and chloride penetration of blended Portland cement mortar containing ground palm oil fuel ash (POA) and ground river sand (GS). Ordinary Portland cement (OPC) was partially replaced with POA and GS. Compressive strength, rapid chloride penetration test (RCPT) and chloride penetration depth of mortars were determined. The GS only asserted the packing effect and its incorporation reduced the strength and the resistance to chloride penetration of mortar. The POA asserted both packing and pozzolanic effects. The use of the blend of equal portion of POA and GS also produced high strength mortars, save cost and excellent resistance to chloride penetration owing to the synergic effect of the blend of POA and GS. For chloride depth, the mathematical model correlates well with the experimental results. The computer graphics of chloride depth of the ternary blended mortars are also constructed and can be used to aid the understanding and the proportioning of the blended system.
Sumrerng Rukzon,Prinya Chindaprasirt 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.6
This paper presents the use of ternary blend of Portland cement with two pozzolans in producing high-strength concrete. PortlandCement Type I (CT) was partially replaced with ground Bagasse Ash (BA), ground rice husk-bark ash (RB) and Fly Ash (FA) at thedosage levels of 20% and 40% by weight of binder. In addition to a single material replacement, a blend of equal weight portions ofRB and FA; and BA and FA were used. Compressive strength, porosity, chloride penetration, corrosion resistance and modulus ofelasticity of concretes were determined. Test results reveal that the resistance to chloride penetration of concrete improvessubstantially with partial replacement of CT with a blend of equal weight portion of FA and RB; or FA and BA and the improvementincreases with an increase in the replacement level. The corrosion resistances of FARB and FABA concretes were better than the CTconcrete or concrete with one pozzolan. The ternary blend is attractive as FA reduces the amount of the SP needed to maintain theworkability and the enhanced resistance to chloride penetration is also obtained from the synergic effect between the two pozzolans.
Sumrerng Rukzon,Prinya Chindaprasirt 사단법인 한국계산역학회 2008 Computers and Concrete, An International Journal Vol.5 No.1
This paper presents a mathematical model for strength and porosity of mortars made with ternary blends of ordinary Portland cement (OPC), ground rice husk ash (RHA) and classified fly ash (FA). The mortar mixtures were made with Portland cement Type I containing 0-40% FA and RHA. FA and RHA with 1-3% by weight retained on a sieve No. 325 were used. Compressive strength and porosity of the blended cement mortar at the age of 7, 28 and 90 days were determined. The use of ternary blended cements of RHA and FA produced mixes with good strength and low porosity of mortar. A mathematical analysis and two–parameter polynomial model were presented for the strength and porosity estimation with FA and RHA contents as parameters. The computer graphics of strength and porosity of the ternary blend were also constructed to aid the understanding and the proportioning of the blended system.
Efficiency factor of high calcium Class F fly ash in concrete
V. Sata,P. Khammathit,P. Chindaprasirt 사단법인 한국계산역학회 2011 Computers and Concrete, An International Journal Vol.8 No.5
This paper studied the cement efficiency factor (k factor) of high calcium Class F fly ash. This k factor represents a unit of fly ash with efficiency equivalent to k unit of cement. The high calcium Class F fly ash was used to replace cement in concrete. The modified Bolomey’s law with linear relationship was used for the analysis of the result of compressive strength, cement to water ratio (c/w) and fly ash to water ratio (f/w) by using the multi-linear regression to determine the k factor and other constants in the equations. The results of analysis were compared with the results from other researcher and showed that the k factor of high calcium Class F fly ash depends on the fineness of fly ash, replacement level and curing age. While the amount of CaO content in Class F fly ash not evident. Furthermore, necessary criteria and variables for the determination of the k factor including the use of the k factor in concrete mix design containing fly ash were proposed.
Properties of pervious concrete containing high-calcium fly ash
V. Sata,C. Ngohpok,P. Chindaprasirt 사단법인 한국계산역학회 2016 Computers and Concrete, An International Journal Vol.17 No.3
This paper presents the properties of pervious concrete containing high-calcium fly ash. The water to binder ratios of 0.19, 0.22, and 0.25, designed void ratios of 15, 20, and 25%, and fly ash replacements of 10, 20, and 30% were used. The results showed that the use of fly ash as partial replacement of Portland cement enhanced the mixing of paste resulting in a uniform mix and reduced amount of superplasticizer used in the mixture. The compressive strength and flexural strength of pervious concrete were slightly reduced with an increase in fly ash replacement level, while the abrasion resistance increased due mainly to the pozzolanic and filler effects. The compressive strength and flexural strengths at 28 days were still higher than 85% of the control concrete. The aggregate size also had a significant effect on the strength of pervious concrete. The compressive strength and flexural strength of pervious concrete with large aggregate were higher than that with small aggregate.
S. Homwuttiwong,C. Jaturapitakkul,P. Chindaprasirt 사단법인 한국계산역학회 2012 Computers and Concrete, An International Journal Vol.10 No.4
In this paper, compressive strength, water permeability and abrasion resistance of concretes containing high volume fine fly ash (FFA) and fine ground palm oil fuel ash (GPA) were studied. Portland cement type I was replaced with FFA and GPA at dosages up to 70% by weight of binder. Ground river sand (GRS) was also used to replace Portland cement in order to indicate the level of filler effect. Results indicated that FFA was slightly more reactive than GPA. The replacement of 40-70% of FFA produced concretes with compressive strength, permeability and abrasion resistance comparable to those of normal concretes. The incorporation of GPA slightly reduced the performances of concretes as compared to those of FFA concretes. The reduction of Portland cement was partly compensated by the increase in pozzolanic activity of the fine fly ash and palm oil fuel ash and thus enabled the large replacement levels.