Transcription of Handwritten Medical Notes

Diagnoses

1. Pericardial Effusion - s/o (suggestive of) Cardiac Tamponade
2. MR (Mitral Regurgitation) - NYHA Class II

Medications Prescribed

Hindi note (निर्देश): "मुफ्त दवा नीति के तहत उपलब्ध दवाई का उपयोग सुनिश्चित करें" - "Ensure use of medicines available under the Free Drug Policy" (government scheme)

Bottom of Sheet

• Contass (possibly "Contrast" or patient ID)
• Input / Output (fluid monitoring chart, page 3)
• Signed by: SR Cardio (Senior Resident, Cardiology)

Clinical Rationale

• Pericardial effusion / cardiac tamponade - the primary acute condition (likely requires pericardiocentesis separately; the drugs address underlying cardiac disease)
• Ischemic heart disease / CAD - suggested by dual antiplatelet therapy (Ecosprin + Clopidogrel) and statin (Rosuvastatin 40 mg)
• Heart failure with MR, NYHA II - managed with:
  • Ramipril (ACE inhibitor - reduces afterload, beneficial in MR and HF)
  • Metoprolol (beta-blocker - rate control, cardiac protection)
  • Dapagliflozin (SGLT2 inhibitor - now standard HF therapy per HFrEF/HFmrEF guidelines)
  • Spironolactone/Aldactone (MRA - reduces fluid retention, mortality benefit in HF)
• Rabeprazole - gastroprotection, especially given dual antiplatelet use
• Orofer XT - iron supplementation (likely for concurrent anemia, common in HF)
• Input/Output monitoring - standard for tamponade/effusion management

Dapagliflozin in Heart Failure

• Mechanism: Blocks SGLT2 in the renal proximal tubule → glucosuria + natriuresis (sodium/fluid excretion) → reduces preload and afterload
• Why given here: This patient has MR + NYHA Class II HF - dapagliflozin is now a Class I recommendation in HFrEF (and HFmrEF/HFpEF) regardless of diabetic status, based on the DAPA-HF trial (2019) and DELIVER trial (2022)
• Dose here: 10 mg OD morning - which is the standard approved dose for heart failure
• Key benefits in HF:
  • Reduces hospitalizations for worsening HF
  • Reduces cardiovascular mortality
  • Improves symptoms and functional class
  • Has mild diuretic effect (useful alongside Spironolactone in this patient)

The "Fantastic Four" in HF - all present in this prescription:

ECG Interpretation

Printed Machine Parameters

Systematic Lead-by-Lead Analysis

• Sinus tachycardia at ~105 BPM - regular rhythm, P waves present before each QRS

• Visible in limb leads - upright in I and II, suggesting sinus origin
• PR interval 171 ms - within normal limits (upper range)

• Duration 120 ms - at the borderline/mildly prolonged threshold
• Low voltage pattern apparent - small QRS amplitudes across leads, consistent with pericardial effusion (fluid attenuates electrical signals)
• No obvious delta waves

• Limb leads: Relatively flat/isoelectric ST segments
• Precordial leads (V1-V6): Need close inspection - the image shows some T-wave changes
• No obvious diffuse saddle-shaped ST elevation (which would suggest active pericarditis)

• Given the clinical diagnosis of pericardial effusion with tamponade, look closely at V3-V5: alternating QRS amplitude from beat to beat (the heart "swings" in the fluid, causing alternating axis) - this is the pathognomonic sign of cardiac tamponade

Summary Interpretation

Sinus tachycardia (105 BPM) with low voltage QRS and probable electrical alternans - highly consistent with pericardial effusion and cardiac tamponade

ECG Features of Cardiac Tamponade (Classic Triad):

Clinical Correlation

• Diagnosis: Pericardial effusion + cardiac tamponade
• Sinus tachycardia is the heart's compensatory response to reduced cardiac output from tamponade physiology (pericardial fluid compressing the heart)
• Pericardiocentesis would be the definitive treatment if tamponade is hemodynamically significant
• Beck's Triad to confirm tamponade: Hypotension + Raised JVP + Muffled heart sounds

⚠️ Note: ECG interpretation from a photograph (rotated, low resolution) has limitations. A direct printout or digital ECG review by the treating cardiologist is always definitive. The SR Cardio who signed the prescription should be the final authority on this ECG.

Nerve Supply of the Diaphragm

1. Motor Supply (entire diaphragm)

• Arises from the anterior rami of C3, C4, and C5 (cervical plexus)
• Sole motor nerve to the entire diaphragm - both hemidiaphragms
• Also provides sensory supply to the central part of the diaphragm
• Mnemonic: "C3, 4, 5 - keeps the diaphragm alive"

• Runs inferiorly on the anterior surface of scalenus anterior, deep to prevertebral fascia
• Passes through the superior thoracic aperture into the mediastinum
• Courses anterior to the lung roots and along the lateral surface of the fibrous pericardium
• Enters the diaphragm and divides into:
  • Sternal branch - runs anteromedially toward sternum
  • Anterolateral branch - passes laterally anterior to central tendon
  • Posterolateral branch - runs posterior to central tendon
  • Crural branch - supplies the crura

2. Sensory Supply

This dual sensory supply explains referred pain patterns: central diaphragmatic irritation (e.g., subphrenic abscess, pericarditis) refers pain to the shoulder tip (C4 dermatome), while peripheral irritation causes lower chest/abdominal wall pain.

3. Sympathetic Supply

• The phrenic nerve branches also receive sympathetic fibers from the inferior phrenic plexus (derived from the celiac plexus), which ramify with the inferior phrenic vessels.

Clinical Relevance

• Spinal cord injuries below C5 do not affect the diaphragm - breathing is preserved
• Injuries at C3-C5 cause diaphragmatic paralysis - respiratory failure
• Phrenic nerve palsy (e.g., from tumors, surgery, cardiac procedures) → elevation of hemidiaphragm on X-ray
• In the cardiac tamponade patient from the previous prescription: pericardial effusion can compress the phrenic nerve along the pericardium, adding to dyspnea
• Gray's Anatomy for Students, p. 174
• Fischer's Mastery of Surgery - 8th Ed., p. 2591