Ivan Riyanto Widjaja
Faculty of Medicine, University of Indonesia, Jakarta

Published : 7 Documents
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Dietary Vitamins B, Folic Acid and Cognitive Impairment in the Elderly Tani, Jowy; Tedja, Irwin; Widjaja, Ivan Riyanto; Bardosono, Saptawati; Amri, Zarni
Journal of the Indonesian Medical Association Vol. 58 No. 3 March 2008
Publisher : Journal of the Indonesian Medical Association

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Vitamin B1 and B6 may play vital roles in the functioning of nervous system, and low plasma levels of vitamin B12 and folic acid have been linked with higher homocysteine level and deterioration of cognitive functioning. This cross-sectional study was designed to investigate the relationship between dietary intake of vitamin B1, B6, B12, folic acid and the presence of cognitive impairment in the elderly. A total of 27 participants from a nursing home in Jakarta participated in the study. Daily intake levels of vitamin B1, B6, B12, and folic acid was obtained using Semiquantitative Food Frequency Questionnaire (SFFQ), while cognitive functioning of the participants was determined using Mini Mental State Examination (MMSE). Age, sex, education, body mass index, and macronutrients intake were not associated with the presence of cognitive impairment. Higher intake of vitamin B6 was associated with lower incidence of cognitive impairment (p=0.016). No association between vitamin B1 (p=0.138), B12 (p=0.490), and folic acid (p=0.146) intake level and the presence of cognitive impairment was found. Higher intake of vitamin B6 may be protective against cognitive impairment caused by aging, prompting further study concernng beneficial effects of vitamin B6. Beneficial effects of vitamin B12 and folic acid intake in the prevention of cognitive impairment remain unproven.Keywords: vitamin B6, vitamin B12, folic acid, cognition, elderly
Association between Consultation Frequency and Satisfaction and Information Quality of Informed Consent for Preoperative Elective Surgery Patients Afandi, Dedi; Sampurna, Budi; Siswadja, Tjetjep Dwija; Widjaja, Ivan Riyanto
Journal of the Indonesian Medical Association Vol. 58 No. 5 May 2008
Publisher : Journal of the Indonesian Medical Association

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Informed consent is a process of sharing information with patients essential to their ability to make rational choices among multiple options in their perceived best interest. This cross-sectional study was designed to investigate the association between consultation frequency and satisfaction between doctor-patients with information quality of informed consent in preoperative elective surgery patients from their perception, along with other factors. Ninetyeight subjects were included from Cipto Mangunkusumo General Hospital in Jakarta, Indonesia. Data obtained from interview included quality of information and Consultation Satisfaction Scale (CSS) and from medical record included medical background and consultation frequency. This study showed Frequency of consultation and CSS were significantly associated with the quality of information (p=0.048 and p<0.001, respectively). Education, socio-economic status, type of disease, and prognosis of disease were not associated with the quality of information (p>0.05). In conclusion, this study suggests consultation frequency and satisfaction in communication between doctor-patients are key factors in informed consent process.Keywords: consultation frequency, consultation satisfaction, informed consent, quality of information
Analysis of Reliability and Validity of Basic Principles of Bioethics Afandi, Dedi; Budiningsih, Yuli; Safitry, Oktavinda; Purwadianto, Agus; Widjaja, Ivan Riyanto; Merlina, Desti
Journal of the Indonesian Medical Association Vol. 58 No. 6 June 2008
Publisher : Journal of the Indonesian Medical Association

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Basic principle of bioethics is one of medical ethics teaching material with cognitive approach in medical faculty. It is a relevant method to develop student’s reasoning analysis of medical ethics. The purpose of this study was to evaluate item analysis, reliability and validity of Basic Principles of Bioethics/Kaidah Dasar Bioetika Test (KDB Test) designed to measure level of cognitive of principle based of bioethics among medical student. This an evaluative descriptive study. The participant comprised of 99 medical students of Faculty of Medicine University of Riau academic year 2007. KDB Test was developed based on literature review and consultation with ethical expert. Item analysis of instrument was determined discrimination index and difficulty index. The validity of instrument was determined by measuring the face validity and content validity. Internal consistency reliability was examined using Kuder Richardson-20 (KR 20). The final version KDB Test showed r (coeffisien correlation to total) ranged between from 0.338 to 0.807 with level significant p<0.05 and internal consistency reliability (KR 20 = 0.701). The conclusion, KDB Test was reliable and valid instrument to measure level of cognitive among medical student.Keywords: Basic principle of bioethics, KDB Test, level of cognitive
Degree of Problems Related to Drug Abuse and Risk Factors among Senior High School Students Afandi, Dedi; Chandra, Fifia; Novitasari, Dwi; Widjaja, Ivan Riyanto; Kurniawan, Lilik
Journal of the Indonesian Medical Association Vol. 59 No. 6 June 2009
Publisher : Journal of the Indonesian Medical Association

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Adolescent is clearly a high risk group for drug abuse, and could threaten to the comunity. This cross sectional study was designed to investigate degree of problem to drug abuse and risk factors among senior high school students. Two hundred and ten students were included from 7 senior high school at Pekanbaru city. Multiple logistic regression was used to analyze risk factors. The degree of drug abuse was measured using Drug Abuse Screening Test (DAST-10) and self-reported questionnaires were administered to identify risk factors. This study showed that 67% of respondent did not have a problem related to drug abuse. There were significant association of sex, living with parents, smoking habit, friend smokes, and attending extracurricular activity (p<0.005) with drug abuse while parent’s marital status, academic performance and member of peer group were not (p=0.920, p=0.236, p=0.937, respectively). Regression analysis showed risk factors related degree of drug abuse were living of respondents (OR=3.969, p=0.002), active in extracurricular activity (OR=0.316, p=0.001) and smoking habit (OR=0.227, p=0.001).Keywords: adolescent, drug abuse, DAST-10, risk factors, senior high school students
Infanticide with Multiple Injury Afandi, Dedi; Hertian, Swasti; Atmadja, Djaja Surya; Widjaja, Ivan Riyanto
Journal of the Indonesian Medical Association Vol. 58 No. 9 September 2008
Publisher : Journal of the Indonesian Medical Association

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Mechanical asphyxia is the most popular killing methods in infanticide. Infanticide by blunt forced injury is rare and those by sharp injury is less common. We present a case report, a newborn baby corpse, male, nine months of gestational age, life birth, no perinatal care signs and viable. From autopsy examination, we found blunt forced injury on the head, smothering, manual strangulation and also signs of asphyxiation in most internal organs. Stab wounds were found on the head and showed intra-vital sign, while the other stab wounds were found on the chest, which was inflicted after death. The cause of death was blunt forced injury on the head.Keywords: infanticide, asphyxia, blunt forced injury, sharp forced injury
Autopsy Finding in Systemic Silicone Embolism Afandi, Dedi; Djuanda, Iwan; Hertian, Swasti; Atmadja, Djaja Surya; Safitry, Oktavinda; Widjaja, Ivan Riyanto
Journal of the Indonesian Medical Association Vol. 58 No. 7 July 2008
Publisher : Journal of the Indonesian Medical Association

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Liquid silicone is an inert material utilized for tissue augmentation by physician as well as illegally by nonmedical personnel. We present a case report, 52 years old man who died after illegal silicone injection. From autopsy examination, we found needle mark at corona of the glans penis, asymetric enlargement of penis, oil substance in artery coronaria’s vessel and depth’s organs were oily. Histopathological examination showed silicone embolism in almost all of the victim’s organs. The cause of dead was infarct myocard acute due to silicone embolism.Keywords: autopsy findings, silicone embolism, augmentation phalloplasty
Anemia among children and adolescents in a rural area Widjaja, Ivan Riyanto; Widjaja, Felix Firyanto; Santoso, Lucyana Alim; Wonggokusuma, Erick; Oktaviati, Oktaviati
Paediatrica Indonesiana Vol 54 No 2 (2014): March 2014
Publisher : Indonesian Pediatric Society

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Abstract

Background Anemia in children and adolescents affects growthand development. It is a preventable disease, but unfortunately isoften ignored until the symptoms occur. There have been limitedreports on the prevalence of anemia in children and adolescentsin Indonesia, especially from rural areas.Objective To describe the prevalence of anemia in children andadolescents in district ofMalinau, a rural area in East KalimantanProvince.Methods This cross-sectional study was done in June 20 10 usinglaboratory records between July 2009 to January 20 10. Laboratoryrecords of patients aged between 6 months and 18 years whichinvestigated were complete blood count (CBC) from ambulatory,inpatient, and emergency care ofMalinau Public Hospital in EastKalimantan. Mentzer and England & Fraser indices were used todifferentiate iron deficiency anemia (IDA) and thalassemia amongmicrocytic hypochromic anemic patients.Results This study involved 709 laboratory records. Prevalenceof anemia was 53 .9% (95% CI 50.2% to 57 .5%) . The prevalenceof IDA among age groups were as follows: 29.4% (95% CI 24.3to 34.5%) in 6- 59 months group, 16% (95% CI 11 to 21 %) in5- 11.9 years, and 15.2% (95% CI 10.2 to 20.2%) in 12- 18 years.Children aged 6- 59 months tended to have more anemia th anthose aged 5- 11.9 years (OR 2. 184, 95% CI 1.398 to 3.413) oraged 12- 18 years (OR 2.3 19, 95% CI 1.464 to 3.674).Conclusion T he prevalence of an emia in children andadolescents of the Malinau Regency is 53 .9% (95% CI 50.2 to57.5%), quite similar to that of other developing countries . Agovernment program to overcome anemia is recommended, n otonly for pregnant women, but also for children and adolescents.