PMID- 20503832
OWN - NLM
STAT- MEDLINE
DCOM- 20110621
LR  - 20151119
IS  - 0019-4832 (Print)
IS  - 0019-4832 (Linking)
VI  - 61
IP  - 3
DP  - 2009 May-Jun
TI  - A study of heart rate variability and QT dispersion in patients of acute ST 
      elevation myocardial infarction.
PG  - 261-4
AB  - AIMS AND OBJECTIVES: To study the effect of Heart Rate Variability (HRV) and QT 
      dispersion (QTd) in patients presenting with acute ST elevation myocardial 
      infarction (STEMI). METHODS: 100 patients of Acute myocardial infarction (AMI) 
      were evaluated by history and examination. Electrocardiogram (ECG) and Holter 
      monitoring was done in all patients. HRV, QTd, Standard Deviation of the mean RR 
      interval (SDNN) and Standard Deviation of the average of RR interval measured 
      every five minutes during 24 hr (SDANN) were calculated. Results were 
      statistically analyzed using Student 't' test, Paired 't' test and Pearson's 
      formula. RESULTS: The most common presenting symptoms were chest pain (88%) and 
      dyspnoea (50%). Tachycardia was seen in 565 while congestive heart failure was 
      present in 29% patients. Mean SDNN was 61.4 +/- 24.4 ms and SDANN was 50 +/- 18.2 
      ms. HRV values were significantly decreased while QTd was higher in patients who 
      died in comparison to patients who survived. A strong negative correlation was 
      seen between HRV and QTd. CONCLUSIONS: Markers of autonomic regulation of heart 
      like HRV and QTd provide valuable information about the future course of events 
      in a patient following acute STEMI which can be utilized to plan the future 
      course of management in patients especially predisposed to adverse and 
      catastrophic outcomes.
FAU - Wahab, A
AU  - Wahab A
AD  - Centre of Cardiology & Cardiovascular Research, J. N. Medical College, Aligarh 
      Muslim University, India.
FAU - Zaheer, M S
AU  - Zaheer MS
FAU - Rabbani, M U
AU  - Rabbani MU
FAU - Wahab, S
AU  - Wahab S
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - India
TA  - Indian Heart J
JT  - Indian heart journal
JID - 0374675
RN  - 0 (Biomarkers)
SB  - IM
MH  - Aged
MH  - Autonomic Nervous System
MH  - Biomarkers
MH  - Chest Pain
MH  - Dyspnea
MH  - Female
MH  - Heart/*innervation
MH  - *Heart Rate
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Myocardial Infarction/diagnosis/*physiopathology
MH  - Prognosis
MH  - Statistics as Topic
EDAT- 2010/05/28 06:00
MHDA- 2011/06/22 06:00
CRDT- 2010/05/28 06:00
PHST- 2010/05/28 06:00 [entrez]
PHST- 2010/05/28 06:00 [pubmed]
PHST- 2011/06/22 06:00 [medline]
PST - ppublish
SO  - Indian Heart J. 2009 May-Jun;61(3):261-4.