UI - Tesis Membership :: Kembali

UI - Tesis Membership :: Kembali

Hubungan antara kadar myeloperoxidase dengan plak vulnerable yang ditandai dengan napkin rign sign pada pasien angina pektoris stabil = Association between myeloperoxidase level and vulnerable plaque marked with napkin ring sign in stable angina pectoris

Ade Widyastuti; Manoefris Kasim, supervisor; Anwar Santoso, supervisor; Sitompul, Barita, examiner; Dede Kusmana, examiner; Budhi Setianto, examiner (Fakultas Kedokteran Universitas Indonesia, 2014)

 Abstrak

[ABSTRAK
Latar belakang. Angka kejadian akut kardiovaskular diperkirakan akan semakin
meningkat. Pasien dengan Angina APS dapat berkembang menjadi Sindroma Koroner Akut
(SKA). Konsep proses inflamasi dan stress oksidatif berperan terhadap patogenesis
atherosklerosis. Radikal bebas seperti reactive oxygen atau nitrogen species, dan HOCL
(hypochlorous acid) dapat mengakibatkan kerapuhan plak. HOCL merupakan Reactive
Oxygen Species (ROS) kuat yang menyebabkan ketidakstabilan plak sehingga mudah ruptur.
Plak yang mudah ruptur disebut plak vulnerable. HOCL adalah substrat yang dihasilkan oleh
myeloperoxidase (MPO). Studi histopatologi plak vulnerablemenilai ukuran pusat nekrotik adalah
prediktor kuat terjadinya ruptur plak (OR 0.35; P <0.05), dan (OR 2.0; P <0.02).CT angiografi
koroner adalah suatu modalitas pencitraan non invasif yang mampu memvisualisasi
morfologi plak vulnerable salah satunya dengan mengidentifikasi adanya Napkin Ring Sign
(NRS). NRS sangat spesifik untuk menilai pusat nekrotik. Studi ini bertujuan melihat hubungan
MPO dengan plak vulnerableyang dinilai dengan Napkin Ring Sign pada pasien angina pektoris
stabil.
Metode. Penelitian ini adalah studi potong lintang yang dilakukan di Pusat Jantung Nasional
Harapan Kita dari periode Juni ? November 2014. Studi dilakukan pada 41 subyek, pada
pasien dengan angina pektoris stabil, jumlah laki ? laki sebanyak 32 orang ( 78%) dan
perempuan 9 orang (22%), Pengambilan sampel secara konsekutif. Pengukuran kadar MPO
dilakukan dengan menggunakan colorimetri assay. Pemeriksaan CT angiografi koroner
dilakukan untuk mengidentifikasi NRS.Analisa statistik untuk mencari hubungan antara
kadar MPO dengan plak vulnerable yang ditandai dengan NRSpada pemeriksaan CT
angiografi koroner.
Hasil.Kadar MPO (nmol) pada pasien dengan positif NRS lebih tinggi dibandingkan yang
negatif 124,371 + 15,324 vs 105,206 + 18,335, aktivitas MPO (milliunit/mL) 829,136 +
102,157 vs701,371 + 122,235. Analisa bivariat erdapat hubungan yang bermakna antara
kadar MPO dengan NRS p 0,002, IK 95%2.3,0 - 39,9. Dari multivariat regresi logistik
didapatkan kadar MPO > 117,2 (median), memiliki OR 9,6 (IK 95% 2,3 -39) dengan p
0,002. Setelah dilakukan penyesuaian dengan faktor resiko, pada analisa multivariat regresi
logistik, didapatkan OR 20,3 (IK 95% 3,1-31,7) dengan p 0,002.
Kesimpulan. Kadar MPO memiliki hubungan yang bermakna dengan plak vulnerable yang
ditandai dengan temuan NRS pada CT angiografi koroner pada pasien dengan APS.
Kata kunci : atherosklerosis, plak vulnerable, myeloperoxidase, napkin ring sign.

ABSTRACT
Background.Coronary Heart Disease ( CHD) is still the major health problem in worldwide.
Atherosclerosis is a chronic inflammatory process where oxidative damage play a role in
atherosclerosis. Overexpression of Reactive Oxygen Species ( ROS) could be detrimental and
weaken the plaque. This type of plaque is often referred to as vulnerable plaque. Reactive
oxygen or nitrogen species, and HOCL (hypochlorous acid) responsible for plaque
vulnerability leading to Acute Coronary Syndrome. HOCL is a substrat of Myeloperoxidase
(MPO). MPO is a member of the heme peroxidase superfamily, generates reactive oxidants
contributes to plaque vulnerability. Coronary Computed Tomography Angiography (CCTA)
is a non invasive modality which able to identify morphology of vulnerable plaque. Napkin-
Ring Sign (NRS) has been associated with high-risk plaques in several studies.
Methods. A cross sectional study in 41 patients stable angina pectoris was done.The subjects
was taken blood sample and underwent CCTA to evaluate NRS in National Cardiovascular
Center Harapan Kita from June to November 2014. Statistical analysis is done to explore the
association between MPO and vulnerable plaque marked with NRS in stable angina pectoris.
Results. There was association between MPO level with vulnerable plaque marked with
Napkin Ring Sign, p value 0,002 , CI 95%2.3,0 - 39.9. Level of MPO is higher in positif
NRS vs non NRS (nmol) 124,371 + 15,324 vs 105,206 + 18,335, activity of MPO
(milliunit/mL) 829,136 + 102,157 vs701,371 + 122,235. Logistic regression analysis showed
level of MPO ≥ 117,2 nmol (median), OR 9,6 (CI95% 2,3 -39) p value0,002. After
adjustment with confounding factor MPO level ≥ 117,2 nmol (median), OR 20,3 (IK 95%
3,1-31,7) , p value 0,002.
Conclusion.There was association between Myeloperoxidase level with vulnerable plaque
marked with Napkin Ring Sign;Background.Coronary Heart Disease ( CHD) is still the major health problem in worldwide.
Atherosclerosis is a chronic inflammatory process where oxidative damage play a role in
atherosclerosis. Overexpression of Reactive Oxygen Species ( ROS) could be detrimental and
weaken the plaque. This type of plaque is often referred to as vulnerable plaque. Reactive
oxygen or nitrogen species, and HOCL (hypochlorous acid) responsible for plaque
vulnerability leading to Acute Coronary Syndrome. HOCL is a substrat of Myeloperoxidase
(MPO). MPO is a member of the heme peroxidase superfamily, generates reactive oxidants
contributes to plaque vulnerability. Coronary Computed Tomography Angiography (CCTA)
is a non invasive modality which able to identify morphology of vulnerable plaque. Napkin-
Ring Sign (NRS) has been associated with high-risk plaques in several studies.
Methods. A cross sectional study in 41 patients stable angina pectoris was done.The subjects
was taken blood sample and underwent CCTA to evaluate NRS in National Cardiovascular
Center Harapan Kita from June to November 2014. Statistical analysis is done to explore the
association between MPO and vulnerable plaque marked with NRS in stable angina pectoris.
Results. There was association between MPO level with vulnerable plaque marked with
Napkin Ring Sign, p value 0,002 , CI 95%2.3,0 - 39.9. Level of MPO is higher in positif
NRS vs non NRS (nmol) 124,371 + 15,324 vs 105,206 + 18,335, activity of MPO
(milliunit/mL) 829,136 + 102,157 vs701,371 + 122,235. Logistic regression analysis showed
level of MPO ≥ 117,2 nmol (median), OR 9,6 (CI95% 2,3 -39) p value0,002. After
adjustment with confounding factor MPO level ≥ 117,2 nmol (median), OR 20,3 (IK 95%
3,1-31,7) , p value 0,002.
Conclusion.There was association between Myeloperoxidase level with vulnerable plaque
marked with Napkin Ring Sign, Background.Coronary Heart Disease ( CHD) is still the major health problem in worldwide.
Atherosclerosis is a chronic inflammatory process where oxidative damage play a role in
atherosclerosis. Overexpression of Reactive Oxygen Species ( ROS) could be detrimental and
weaken the plaque. This type of plaque is often referred to as vulnerable plaque. Reactive
oxygen or nitrogen species, and HOCL (hypochlorous acid) responsible for plaque
vulnerability leading to Acute Coronary Syndrome. HOCL is a substrat of Myeloperoxidase
(MPO). MPO is a member of the heme peroxidase superfamily, generates reactive oxidants
contributes to plaque vulnerability. Coronary Computed Tomography Angiography (CCTA)
is a non invasive modality which able to identify morphology of vulnerable plaque. Napkin-
Ring Sign (NRS) has been associated with high-risk plaques in several studies.
Methods. A cross sectional study in 41 patients stable angina pectoris was done.The subjects
was taken blood sample and underwent CCTA to evaluate NRS in National Cardiovascular
Center Harapan Kita from June to November 2014. Statistical analysis is done to explore the
association between MPO and vulnerable plaque marked with NRS in stable angina pectoris.
Results. There was association between MPO level with vulnerable plaque marked with
Napkin Ring Sign, p value 0,002 , CI 95%2.3,0 - 39.9. Level of MPO is higher in positif
NRS vs non NRS (nmol) 124,371 + 15,324 vs 105,206 + 18,335, activity of MPO
(milliunit/mL) 829,136 + 102,157 vs701,371 + 122,235. Logistic regression analysis showed
level of MPO ≥ 117,2 nmol (median), OR 9,6 (CI95% 2,3 -39) p value0,002. After
adjustment with confounding factor MPO level ≥ 117,2 nmol (median), OR 20,3 (IK 95%
3,1-31,7) , p value 0,002.
Conclusion.There was association between Myeloperoxidase level with vulnerable plaque
marked with Napkin Ring Sign]

 File Digital: 1

Shelf
 T-Ade Widyastuti.pdf :: Unduh

LOGIN required

 Metadata

Jenis Koleksi : UI - Tesis Membership
No. Panggil : T-Pdf
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Entri tambahan-Nama badan :
Program Studi :
Subjek :
Penerbitan : Jakarta: Fakultas Kedokteran Universitas Indonesia, 2014
Bahasa : ind
Sumber Pengatalogan : LibUI ind rda
Tipe Konten : text
Tipe Media : computer
Tipe Carrier : online resource
Deskripsi Fisik : xvii, 55 pages : illustration ; 28 cm + appendix
Naskah Ringkas :
Lembaga Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI
  • Ketersediaan
  • Ulasan
  • Sampul
No. Panggil No. Barkod Ketersediaan
T-Pdf 15-17-173916864 TERSEDIA
Ulasan:
Tidak ada ulasan pada koleksi ini: 20403704
Cover