You are a medical education expert helping compile a comprehensive DNB Anesthesia question bank answer guide. Research and provide detailed, exam-ready answers for the following CVS anesthesia topics using the medical library database (query_library_db) and web search. For EACH question below, provide a structured, detailed answer suitable for DNB (Diplomate of National Board) Anesthesia examinations in India. Use headings, bullet points, and tables where appropriate. QUESTIONS TO ANSWER: **Q1. Off-pump CABG** a) Indications of off-pump CABG b) Technique, advantages and disadvantages of off-pump bypass **Q2. Preload, Afterload, and LV Diastolic Function** a) What is preload and afterload? b) What are the determinants of left ventricular diastolic function? **Q3. Extracorporeal Membrane Oxygenation (ECMO)** - Full discussion: types, indications, contraindications, circuit components, management, complications, weaning **Q4. Post Cardiac Arrest Care** - Full discussion: ROSC management, targeted temperature management, hemodynamic goals, neuroprotection, prognostication **Q5. Anesthetic considerations for 75-year male, chronic smoker, permanent pacemaker, posted for TURP** - Preoperative evaluation, intraoperative management, pacemaker precautions, TURP syndrome, postoperative care **Q6. Non-invasive cardiac output monitoring** - Methods: thoracic bioimpedance, bioreactance, pulse contour analysis, transthoracic echo, USCOM, NiCOM - principles, advantages, limitations **Q7. Use of heparin during cardiopulmonary bypass** - Mechanism, dosing, ACT monitoring, reversal with protamine, heparin resistance, heparin-induced thrombocytopenia **Q8. Management of ventricular tachycardia in an adult patient** - Classification (stable vs unstable), ACLS algorithms, pharmacologic and electrical management, causes, prevention **Q9. Diagnosis and management of myocardial ischemia under general anaesthesia** - Monitoring (ECG leads, ST changes, TEE), causes, treatment, significance of different ECG changes **Q10. Pre, intra and post-operative management of 53-year-old hypertensive patient for laparoscopic cholecystectomy** - Preop: evaluation, optimization, antihypertensive management - Intraop: anesthetic technique, BP control, laparoscopic considerations - Postop: pain, BP management Use the medical library: query_library_db with SQL queries. Start with: SELECT title, speciality, file_path FROM v_book_overview LIMIT 20 Then search for relevant sections using headings_fts and paragraphs_fts. For example: SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges FROM headings_fts WHERE headings_fts MATCH 'off pump CABG' ORDER BY rank LIMIT 5 Read relevant file sections using read_file with offset and limit=100. Return comprehensive, structured answers for ALL 10 questions above. Format as a study guide with clear headings. Include specific numbers, doses, thresholds wherever clinically relevant.

You are a medical education expert helping compile a comprehensive DNB Anesthesia question bank answer guide. Research and provide detailed, exam-ready answers for the following CVS anesthesia topics using the medical library database (query_library_db) and web search. For EACH question below, provide a structured, detailed answer suitable for DNB (Diplomate of National Board) Anesthesia examinations in India. Use headings, bullet points, and tables where appropriate. QUESTIONS TO ANSWER: **Q11. Preoperative preparation of 65-year-old female with CAD, drug-eluting stent (1 year back), for right total knee replacement** - Risk assessment (RCRI, ACC/AHA), dual antiplatelet therapy management, timing of surgery after DES, bridging strategies, investigations, optimization **Q12. Cardioplegia** - Definition, types (crystalloid, blood), composition, delivery methods (antegrade, retrograde), warm vs cold, myocardial protection mechanism **Q13a. Cardioversion** - DC cardioversion: indications, technique, synchronized vs unsynchronized, energy levels, complications, pre/post management **Q13b. Aortocaval compression** - Mechanism, effects, prevention, management in obstetric patients **Q14. Pre-requisites before weaning from cardiopulmonary bypass** - Temperature, rhythm, electrolytes, ventilation, de-airing, vasoactive drugs, TEE assessment checklist **Q15. Causes, diagnosis and treatment of atrial fibrillation under anaesthesia** - Intraoperative AF: causes, diagnosis (ECG features), rate vs rhythm control, pharmacologic options, cardioversion, anticoagulation **Q16. Blood pressure: definition, accurate measurement, types of hypertension** - BP physiology, Korotkoff sounds, NIBP vs IBP, sources of error, classification: primary/secondary, white coat, masked, resistant, hypertensive urgency/emergency **Q17. Coronary circulation and intraoperative ischemia monitoring** - Draw/describe coronary anatomy (RCA, LAD, LCx territories), coronary physiology, dominance - Ischemia monitoring: ECG (lead II + V5), ST analysis, TEE wall motion, PAC - Factors affecting myocardial oxygen consumption (MVO2): determinants, clinical significance **Q18. Rheumatic heart disease with severe mitral stenosis, 36-week pregnant, for elective LSCS** a) Pathophysiology of mitral stenosis (MVA, pressure gradients, pulmonary HTN, AF complications) b) Anesthetic plan: choice of anesthesia (spinal vs epidural vs GA), hemodynamic goals, monitoring, oxytocin precautions, postpartum management **Q19. Pre-anaesthetic evaluation of 70-year-old chronic smoker with systemic hypertension for total hip replacement (THR)** - History, examination, investigations, risk stratification, optimization of hypertension, smoking cessation, pulmonary function, cardiac assessment, medications, type of anesthesia Use the medical library: query_library_db with SQL queries. Start with: SELECT title, speciality, file_path FROM v_book_overview LIMIT 20 Then search for relevant sections using headings_fts and paragraphs_fts. For example: SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges FROM headings_fts WHERE headings_fts MATCH 'mitral stenosis anaesthesia' ORDER BY rank LIMIT 5 SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges FROM headings_fts WHERE headings_fts MATCH 'cardioplegia' ORDER BY rank LIMIT 5 SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges FROM headings_fts WHERE headings_fts MATCH 'coronary circulation' ORDER BY rank LIMIT 5 Read relevant file sections using read_file with offset and limit=100. Return comprehensive, structured answers for ALL 9 questions above (Q11-Q19). Format as a study guide with clear headings. Include specific numbers, doses, thresholds wherever clinically relevant.

ACC AHA 2022 perioperative cardiac evaluation noncardiac surgery RCRI guidelines

drug eluting stent DES surgery timing dual antiplatelet DAPT 2023 guidelines ACC AHA

mitral stenosis severe anesthesia LSCS caesarean section hemodynamic goals spinal epidural 2023

hypertension classification JNC 8 ACC AHA 2017 white coat masked resistant hypertensive emergency urgency definition