title: Optical coherence tomography guided PCI - initial experience at Apollo Health City, Jubilee Hills, Hyderabad.
abstract: BACKGROUND
  The capability of OCT to examine the structure of the arterial wall before or after PCI is superior to those of other imaging modalities. Therefore the application of OCT during PCI seems logical and has the potential to enhance our performance during the PCI procedures.
  
  
  METHODS
  OCT was performed in fifty-two patients out of which, 45 patients underwent PCI. Out of these 45 patients, in 25 patients both pre and post PCI OCT assessment was done. In 20 patients only post PCI OCT assessment was done. In seven patients PCI was not done due to nonsignificant obstruction, these seven patients were not included in final analysis.
  
  
  RESULTS
  Over all OCT leads to management changes in 65% of the time it was used. Alteration of stent length was done in 56% of the cases when evaluated pre PCI. Alteration of stent diameter was done in 36% cases when evaluated pre PCI. Treatment of malapposition was done in 24% of total cases. Further balloon dilatation for vessel expansion was done in 15% of total cases. In one case left main stenting was done after proximal edge dissection.
  
  
  CONCLUSIONS
  OCT makes better visualization of plaque, thrombus, stent malapposition, dissection, plaque prolapse and helps in optimization of PCI results. More extensive, long-term studies will be needed to assess the prognostic implications of these findings.
authors.affiliation: Director, Cath Lab, Senior Interventional Cardiologist, Apollo Health City, Jubilee Hills, Hyderabad, India. Electronic address: drpcrath@hotmail.com.
authors.forename: Pratap Chandra
authors.initials: PC
authors.lastname: Rath
authors.affiliation: Consultant Interventional Cardiologist, Apollo Health City, Jubilee Hills, Hyderabad, India.
authors.forename: Krupal
authors.initials: K
authors.lastname: Reddy
authors.affiliation: Senior Interventional Cardiologist, Apollo Health City, Jubilee Hills, Hyderabad, India.
authors.forename: Manoj K
authors.initials: MK
authors.lastname: Agarwal
authors.affiliation: Senior Interventional Cardiologist, Apollo Health City, Jubilee Hills, Hyderabad, India.
authors.forename: Bharat V
authors.initials: BV
authors.lastname: Purohit
authors.affiliation: Senior Interventional Cardiologist, Apollo Health City, Jubilee Hills, Hyderabad, India.
authors.forename: Tripti
authors.initials: T
authors.lastname: Deb
authors.affiliation: Registrar and Research Officer, Dept. of Cardiology, Apollo Health City, Jubilee Hills, Hyderabad, India.
authors.forename: Aleti Mallikarjun
authors.initials: AM
authors.lastname: Reddy
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000379:methods* / Q000401:mortality; D015331:Cohort Studies; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000401:mortality / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006767:Hospitals, District; D006801:Humans; D007194:India; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional; D012189:Retrospective Studies; D018570:Risk Assessment; D016019:Survival Analysis; D041623:Tomography, Optical Coherence / Q000379:methods*; D016896:Treatment Outcome
keywords: Angiography; Coronary artery disease; Optical coherence tomography; Percutaneous transluminal coronary angioplasty