Journals / MN Kardiyoloji / 2000 / Cilt: 7 - Sayı: 5

Cardiac changes in patients with diabetes mellitus

Diabetes mellitusu olan olgularda kardiyak değişiklikler

Pages
375–381
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

CONCLUSION: Bed side autonomic function tests, measures of HRV and QT intervals show a relation with eachother and ventricular rhythm problems, also presence of MA in DM may cause increase in blood pressure and LVMI resulting with increase in QT intervals predisposing the patient to high risk of ventricular rhythm problems.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:AIM: Abnormally prolonged corrected QT interval (QTc) and dispersions of QT-QTc (QTd-QTcd) intervals are associated with a higher risk of ventricular arrhythmias.
📊
Key Findings & Data:Microalbuminuria (MA) and diabetic autonomic neuropathy (DAN) are considered as important predictors of cardiovascular events in diabetic patients and decreased heart rate variability (HRV) measures are thought to be associated with autonomic nervous system imbalance.
💡
Conclusion & Impact:CONCLUSION: Bed side autonomic function tests, measures of HRV and QT intervals show a relation with eachother and ventricular rhythm problems, also presence of MA in DM may cause increase in blood pressure and LVMI resulting with increase in QT intervals predisposing the patient to high risk of ventricular rhythm problems.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Diabetes mellitus · Risk faktörleri · Uzun QT sendromu

Abstract

AIM: Abnormally prolonged corrected QT interval (QTc) and dispersions of QT-QTc (QTd-QTcd) intervals are associated with a higher risk of ventricular arrhythmias. Microalbuminuria (MA) and diabetic autonomic neuropathy (DAN) are considered as important predictors of cardiovascular events in diabetic patients and decreased heart rate variability (HRV) measures are thought to be associated with autonomic nervous system imbalance. In this study bedside autonomic function tests, HRV measures, QT intervals, microalbuminuria, change in left ventricular morphology and ventricular rhythm problems were studied and relation between those variables were investigated in type II diabetic patients by comparing those results with the healthy control group prospectively. METHODS: Diabetic group consisted of 82 type-II diabetes mellitus (DM) cases (39 females, 58.1±4.0 years) and 40 healthy control cases (18 female, 57.3±2.8years old, p->0.05). RESULTS: DAN was more common in DM cases (29 versus 0, p<0.0001). Diabetic cases had longer QTc interval (0.42±0.02 versus 0.40±0.02 sec, p=0.04), increased QTd (0.04±0.02 versus 0.03±0.01 sec, p<0.0001), QTcd (0.05±0.02 versus 0.04±0.01, p<0.0001), shorter HRV measures: SDANN (111.3±24.8 versus 156.2±9.0 sec), SDNN (135.6±25.5 versus 187.5±13.8 sec), rMSSD (53.9±11.0 versus 73.7±8.4 sec), PNN50 (10.5±6.0 versus 27.1 ±5.2 %), LF (43.8±13.4 versus 60.7±6.1 nu), HF (18.6±6.7 versus 27.1±3.5 nu) (p<0.0001); higher systolic (124.3±9.9 versus 116.4±10.7 mmHg, p<0.0001) and diastolic blood pressures (75.5±9.7 versus 71.9±6.8, p=0.01), left ventricular mass index (LVMI)(111.4±13.5 versus 101.6±12.5 gr/m2, p<0.0001) and higher lown grade ventricular arrhythmias (1.8±0.7 versus 0.7±0.4, p= 0.001). MA was present in 30 of DM cases and in none of control group (p<0.0001). Ventricular rhythm problems showed a positive relation with DAN,QT intervals, and a negative relation with HRV measures. Blood pressures, LVMI and QT intervals showed positive relation with the presence of MA. Presence of DAN showed a negative relation with the measures of HR V. CONCLUSION: Bed side autonomic function tests, measures of HRV and QT intervals show a relation with eachother and ventricular rhythm problems, also presence of MA in DM may cause increase in blood pressure and LVMI resulting with increase in QT intervals predisposing the patient to high risk of ventricular rhythm problems.

Özet

AMAÇ: Uzamış düzeltilmiş QT süresi (QTc) ve QT-QTc dispersiyonları (QTd-QTcd) artmış ventriküler aritmi riski ile ilişki gösterir. Diabetes mellituslu (DM) olgularda mikroalbüminüri (MA), diabetik otonomik nöropati (DN) ve düşük kalp hızı değişkenliği (KHD) değerleri kardiyovasküler olaylar için risk oluşturur ve otonomik dengede bir bozukluğu gösterir.Bu çalışmada tip-2 DM olgularında yatak başı otonom fonksiyon testleri, KHD, QT süreleri, MA, sol ventrikül morfolojisi ve ventriküler ritm problemleri prospektif ve kontrollü olarak değerlendirilerek birbirleri ile ilişkileri araştırıldı. YÖNTEM: Gruplarımız 82 tip-2 DM (39 kadın, 58.l±4.0 yaş) ve 40 sağlıklı kontrol (18 kadın, 57.3±2.8 yaş, p>0.05) olgusundan oluşuyordu. BULGULAR: DM grubunda DAN 29 olguda görüldü, kontrol grubunda ise otonom nöropati saptanmadı (p<0.0001). DM grubunda QTc uzun (0.42±0.02'e 0.40±0.02 sn, p=0.04), QTd (0.04±0.02'e 0.03±0.01 sn), QTcd (0.05±0.02'e 0.04±0.01 sn) (p<0.0001) artmıştı, KHD değerleri; SDANN (111.3±24.8'e 156.2±9.0 sn), SDNN (135.6±25.5'a 187.5±13.8 sn), rMSSD (53.9±11.0'a 73.7±8.4 sn), PNN50 (10.5±6.0'a 27.1±5.2 %), LF (43.8±13.4'e 60.7± 6.1 nu), HF (18.6±6.7'e 27.1±3.5 nu) (p<0.0001) düşük; sistolik (124.3±9.9'a 116.4±10. 7 mmHg, p<0.0001) ve diastolik (75.5±9.7'e 71.9±6.8 mmHg, p=0.01) kan basınçları yüksek, sol ventrikül kitle indeksi (SVKİ) (111.4±13.5'a 101.6±12.5 gr/m2, p<0.0001) ve ventrikül aritmilerinin lown sınıflamasına göre değeri (1.8±0.7'e 0.7±0.4, p=0.001) yüksekti. DM grubunun 30'unda MA pozitifken kontrol grubunda görülmedi (p<0.0001). Ventriküler ritm problemleri DN pozitifliği, QT süreleri ile pozitif, KHD ölçümleri ile negatif ilişki gösteriyordu. Kan basınçları SVKİ, QT süreleri ve MA pozitifliği ile pozitif ilişki gösteriyor,DN pozitifliği KHD ölçümleri ile negatif ilişki gösteriyordu. SONUÇ: Yatak başı otonom fonksiyon testleri, KHD ölçümleri ve QT sürelerinin birbirleri ile ve ventriküler ritm problemleri ile belirgin ilişki gösterdiği, aynı zamanda DM'da MA pozitifliğinin bu olgularda ventriküler ritm problemleri riskini artıran kan basıncı ve SVKİ artışına neden olabileceği düşünüldü.

🔖

Cite This Article

KAFTAN, H. A., KAFTAN, O., ODABAŞ, A. (2000). Cardiac changes in patients with diabetes mellitus. MN Kardiyoloji, Cilt: 7 - Sayı: 5, 375–381. https://ajindex.com/articles/297828

References (16)

  1. Jerve IA, Lange-Nielsen F. Congenital deaf-mutism functional heart disease with prolongation of the QTc interval and sudden death Am Heart J 1957
  2. Peters RW, Byington RP, Barker A/Yusuf S, BHAT Study Group. Prognostic value of prolonged repolarization following myocardial infarction. The BHAT experience. J Clin Epidemiol 1990
  3. Sawicki PT, Dahne R, Bender R, Berger M. Prolonged QT interval as a predictor of rnortality in diabetic nephropathy. Diabetologia 1996
  4. Thomas SH. Drugs, QT interval abnormalities and ventricular arrhythmias. Adverse Drug React Toxicol Rev 1994
  5. Abildskov JA. Adrenergic effects of the QT interval of the electrocardiogram. Am Heart J 1996
  6. Milne JR, Camm AJ, Wad DE, Spurrell RA. Effects of intravenous, propranolol on QT interval. A new method of assessment. Br Heart J 1980
  7. Bexton RS, Vallin HO, Camm AJ. Diurnal variation of the QT interval: influence of the autonomic nervous system. Br Heart J 1986
  8. Browne KF, Zipes DP, Heger JJ, Prystowsky EN. Influence of the autonomic nervous system on the QT interval in man. Am J Cardiol 1982
  9. Ahne S, Vallin H. Influence of heart rate and inhibition of autonomic tone on the QT interval. Circulation 1982
  10. Darbar D, Smith M, Marike K, Roden DM. Epinephrine induced changes in serum potassium and cardiac repolarization and effects of pretreatment with propranolol and diltiazem. Am J Cardiol 1996
  11. Annila P, Yli-Hankala A, Lindgren L. Effects of atropine on the QT intervals and T wave amplitude in healthy volunteers. Br J Anesth 1993
  12. Ganin JM, Kadrofske MM, Schmaltz S, Bastyr EJ, Vinik Al. Corrected QT interval prolongation as diagnostic tool for assessment of cardiac autonomic neuropathy in diabetes mellitus. Diabetes Care 1990
  13. Bellavere F, Ferri M, Guarini L, Bax G, Piccoli A, Cardone C, Fedele D. Prolonged QT period in diabetic autonomic neuropathy: a possible role in sudden cardiac death. Br Heart J 1988
  14. Yokoyama A, Ishii H, Takagi T, Hori S, Matsushita S, Onishi S, Katsukawa F, Takei I, Kato I, Maruyama K. Prolonged QT interval in alcoholic autonomic nervous dysfunction. Alcohol Clin Exp Res 1992
  15. Day CP, Janies OF, Buttler TJ, Campbell RW. QT prolongation and sudden cardiac death in patients with alcoholic liver disease. Lancet 1993
  16. Mohammed R, Forsey PR, Davies MK, Neuberger JM. Effect of liver transplantation on QT interval prolongation and autonomic dysfunction in