Ashis Halder, Suranjan Halder, Haripada Das, Dhiraj Barman

A STUDY ON POST-OPERATIVE ATRIAL FIBRILLATION AMONG PATIENTS UNDERGOING CARDIAC SURGERY AT A TERTIARY LEVEL HOSPITAL IN WEST BENGAL

  • General Medicine
  • General Earth and Planetary Sciences
  • General Environmental Science
  • General Medicine
  • Ocean Engineering
  • General Medicine
  • General Medicine
  • General Medicine
  • General Medicine
  • General Earth and Planetary Sciences
  • General Environmental Science
  • General Medicine
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Background: Post-operative atrial brillation (POAF) is a common, persistent and dreaded complication after cardiac surgeries. Multiple factors have been implicated with its causation. The present study was conducted to determine the incidence of POAF among patients undergoing cardiac surgery procedures and to identify and evaluate preoperative, intraoperative and postoperative factors associated with the occurrence of POAF. Materials and methods: The present descriptive observational study with prospective design was conducted at a tertiary level healthcare institute in the city of Kolkata, West Bengal, over a period of one and half year. A total of 126 subjects undergoing cardiac surgery in the department of Cardio-thoracic and Vascular surgery at the institute were interviewed using a pre-tested and pre-designed schedule and observing and recording the clinical variables after obtaining the ethical clearance from the institute and informed consent from each subject. Inferential statistics either by parametric or non-parametric tests according to the data distribution for continuous variables and Chi-square test categorical variables was performed to elicit association; p value of less than 0.05 was considered statistically signicant. Results: The mean (± SD) age of the study population was 38.55 ± 19.23 years. The incidence of POAF was 26.2% at the immediate post-operative period up to 3 days, 30.1% during 3-7 days and 20.6% at one month follow up period. The association between POAF incidence and factors like older age, overweight/obese, presence of any chronic co-morbidity, poor left ventricular dysfunction and negative history of prior beta blocker medication, increased left atrial size, higher cross clamp and cardio-pulmonary bypass time were statistically signicant. Conclusion: POAF is a common consequence after cardiac surgery reaching its peak between 3rd to 7th post-operative days. There are many factors which are signicantly associated with its occurrence and also prolong the morbidity by lengthening the hospital stay.

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