Mulyadi M. Djer

The role of curcumin as an inhibitor of oxidative stress caused by ischaemia re-perfusion injury in tetralogy of Fallot patients undergoing corrective surgery.

BACKGROUND Cardiopulmonary bypass during tetralogy of Fallot corrective surgery is associated with oxidative stress, and contributes to peri-operative problems. Curcumin has been known as a potent scavenger of reactive oxygen species, which enhances the activity of antioxidants and suppresses phosphorylation of transcription factors involved in inflamation and apoptosis. OBJECTIVES To evaluate the effects of curcumin as an antioxidant by evaluating the concentrations of malondialdehyde and glutathione, activity of nuclear factor-kappa B, c-Jun N-terminal kinase, caspase-3, and post-operative clinical outcomes. METHODS Tetralogy of Fallot patients for corrective surgery were randomised to receive curcumin (45 mg/day) or placebo orally for 14 days before surgery. Malondialdehyde and glutathione concentrations were evaluated during the pre-ischaemia, ischaemia, re-perfusion phases, and 6 hours after aortic clamping-off. Nuclear factor-kappa B, c-Jun N-terminal kinase, and caspase-3, taken from the infundibulum, were assessed during the pre-ischaemia, ischaemia, and re-perfusion phases. Haemodynamic parameters were monitored until day 5 after surgery. RESULTS In all the observation phases, malondialdehyde and glutathione concentrations were similar between groups. There was no significant difference in nuclear factor-kappa B activity between the groups for three observations; however, in the curcumin group, c-Jun N-terminal kinase significantly decreased from the pre-ischaemia to the re-perfusion phases, and caspase-3 expression was lower in the ischaemia phase. Patients in the curcumin group had lower temperature and better ventricular functions, but no significant differences were found in mechanical ventilation day or length of hospital stay in the two groups. CONCLUSION Cardioprotective effects of curcumin may include inhibition of the c-Jun N-terminal kinase pathway and caspase-3 in cardiomyocytes, particularly in the ischaemia phase.

TRANSCATHETER CLOSURE OF ATRIAL SEPTAL DEFECTS IN A CENTER WITH LIMITED RESOURCES: OUTCOMES AND SHORT TERM FOLLOW-UP

Background: Transcatheter closure of atrial septal defects (ASD) has been accepted world-wide as an alternative to surgical closure with excellent results. This interventional, non-surgical technique plays an important role in the treatment of ASD mostly in the developing world where resources are limited. Objectives: To report the outcomes and short term follow-up of transcatheter closure of ASD over a 12-year period at our institution with limited resources. Patients and Methods: This retrospective study included all patients with the diagnosis of secundum ASD and significant shunting (Qp/Qs > 1.5:1) as well as dilated right atrium and right ventricle who had transcatheter closure at Integrated Cardiovascular Center (PJT), Dr. Cipto Mangunkusumo Hospital between October 2002 and October 2014. One hundred fifty-two patients enrolled in this study were candidates for device closure. Right and left heart cardiac catheterization was performed before the procedure. All patients underwent physical examination, ECG, chest X-ray and transthoracal echocardiography (TTE) prior to device implantation. Results: A total of 152 patients with significant ASD underwent device implantation. Subjects’ age ranged from 0.63 to 69.6 years, with median 9.36 years and mean 16.30 years. They consisted of 33 (21.7%) males and 119 (78.3%) females, with mean body weight of 29.9 kg (range 8 to 75; SD 18.2). The device was successfully implanted in 150 patients where the majority of cases received the Amplatzer septal occluder (147/150; 98%) and the others received the Heart Lifetech ASD occluder (3/150, 2%), whereas two other cases were not suitable for device closure and we decided for surgical closure. The mean ASD size was 19.75 (range 14 - 25) mm. During the procedure, 5 (4.9%) patients had bradycardia and 3 (2.9%) patients had supraventricular tachycardia (SVT), all of which resolved. Conclusions: In our center with limited facilities and manpower, transcatheter closure of atrial septal defect was effective and safe as an alternative treatment to surgery. The outcome and short-term follow-up revealed excellent results, but long-term follow-up is needed.

Effects of paediatric HIV infection on electrical conduction of the heart

Objective To investigate the effects of HIV infection in children on heart electrical conduction, particularly to delineate the effects of HIV infection from treatment. Methods On a 12-lead ECG, available for 37 antiretroviral therapy (ART) naïve, 42 ART-exposed vertically-acquired HIV-infected and 50 healthy children in Jakarta, Indonesia, we measured cardiac conduction parameters: PR, QRS, and QTc (corrected using Bazetts formula) intervals. The associations between HIV infection/treatment status and ECG intervals were evaluated using general linear modelling with further adjustment for potential confounders or intermediary variables. Findings are presented as (adjusted) mean differences between each of the two HIV groups and healthy children. Results Although not exceeding the clinical threshold for long QT (QTc >460 ms for girls and >440 ms for boys) compared to healthy children, mean QTc intervals were longer in ART-naïve (difference 18.2 ms, 95% CI 7.0 to 29.3) and, to greater extent, in ART-exposed HIV-infected children (difference 28.9 ms, 19.3 to 38.5). Following adjustment for RR interval, age and height, prolongation of PR interval was seen only in ART-naïve HIV-infected children (difference 12.9 ms, 2.4 to 23.3). Cardiac mass/function, high-sensitive C reactive protein, cholesterol and glycated haemoglobin levels, systolic and diastolic blood pressures, or postnatal parental smoking exposure did not affect these associations. No difference in the QRS interval was observed between groups. Conclusions Prolongation of the QTc interval occurs in ART-naïve HIV-infected children and, to a greater extent, in the ART-exposed children, whereas a longer PR interval appears to be seen only among ART-naïve HIV-infected children.

Tatalaksana Penyakit Jantung Bawaan

Penyakit jantung bawaan (PJB) merupakan kelainan jantung yang sudah didapat sejak lahir. Manifestasinya klinis bergantung dari berat ringan penyakit, mulai dari asimtomatis sampai dengan adanya gejala gagal jantung pada neonatus. Dengan berkembangnya teknologi, terutama dengan ditemukannya ekokardiografi, banyak kelainan jantung bawaan asimtomatis yang dapat dideteksi. Tata laksana meliputi non-bedah dan bedah. Tata laksana non-bedah meliputi pengobatan medikamentosa dan kardiologi intervensi, sedangkan tata laksana bedah meliputi bedah paliatif dan operasi definitif. Tujuan tata laksana medikamentosa dan bedah paliatif adalah untuk mengatasi gejala klinis akibat komplikasi PJB sambil menunggu waktu yang tepat untuk dilakukan operasi definitif. Akhir-akhir ini telah dikembangkan kardiologi intervensi, suatu tindakan yang memberi harapan baru bagi pasien PJB tanpa operasi, namun saat ini biayanya masih cukup tinggi

Validasi Sistem Skoring Rondinelli untuk Mendeteksi Komplikasi Infeksi Berat pada Pasien Leukemia Limfoblastik Akut L1 dengan Demam Neutropenia Selama Kemoterapi Fase Induksi

Latar belakang. Anak dengan keganasan yang mendapatkan pengobatan kemoterapi sering mengalami episode demam neutropenia. Kondisi ini akan meningkatkan risiko infeksi yang berat akibat penurunan fungsi utama neutrofil sebagai pertahanan terhadap mikroorganisme asing. Rondinelli dkk telah mengusulkan suatu sistem skoring untuk memprediksikan terjadinya komplikasi infeksi berat pada pasien keganasan dengan demam neutropenia selama pemberian kemoterapi sehingga diperoleh tata laksana yang sesuai. Tujuan. Mengetahui apakah sistem skoring Rondinelli dapat membantu mendeteksi risiko terjadinya komplikasi infeksi berat dengan LLA-L1 yang mengalami demam neutropenia selama pemberian kemoterapi fase induksi. Metode. Penelitian uji diagnostik metode potong lintang retrospektif dengan membandingkan sistem skoring Rondinelli terhadap baku emas terjadinya komplikasi infeksi berat berupa kondisi septikemia disertai terdapatnya bakteremia pada kultur darah. Sampel diambil dari data sekunder berupa rekam medis pasien LLA-L1 yang menjalani rawat inap di bangsal Departemen IKA FKUI/RSCM mulai bulan Januari 2010 hingga bulan Agustus 2012. Subyek penelitian adalah pasien anak berusia 0 hingga 18 tahun dengan Leukemia limfoblastik akut L1 (LLA-L1) yang mengalami episode demam neutropenia yang pertama kali selama pemberian kemoterapi fase induksi. Hasil. Penelitian dilakukan pada 30 subyek yang memenuhi kriteria inklusi. Insiden komplikasi infeksi berat saat episode demam neutropenia yang pertama kali pada pasien LLA-L1 selama pemberian kemoterapi fase induksi 30%. Sensitivitas, spesifisitas, nilai duga positif, nilai duga negatif, rasio kemungkinan positif, dan rasio kemungkinan negatif skoring Rondinelli berturut-turut adalah 66,7%; 90,5%; 75%; 86,3%; 6,94; dan 0,36. Area di bawah kurva ROC pada penelitian ini 0,759. Kesimpulan. Sistem skoring Rondinelli merupakan instrumen yang cukup baik untuk mendeteksi komplikasi infeksi berat pada anak dengan LLA-L1 yang mengalami demam neutropenia selama pemberian kemoterapi fase induksi.