PURPOSE
Published clinical case reports provide basic science medical educators
convenient access to clinical data to develop educational materials for
case-based learning. The pathophysiology of Liddle’s Syndrome is an ideal
topic for adaptation to a case study for integrated learning.
METHODS
Liddle’s Syndrome is a rare genetic disorder, resulting in early-onset
hypertension due to dysfunction of the renal tubule ENaC channel. A clinical
case report published in Frontiers in Cardiovascular Medicine described a
novel ENaC channel mutation in one family1. This case report described the
clinical presentation of the proband, results of family genetic screening,
and treatment protocols. The clinical data and results published in this
paper enabled the development of a Liddle's Syndrome case for the integrated
case-based learning component of our curriculum. Clinical information in this
case report was adapted to write a history of present illness, past medical
history, detailed family history, and physical examination and lab test
results for this patient.
1 Lu Y-T, et. al. (2022) A Novel Frame-Shift Mutation in SCNN1B Identified
in a Chinese Family Characterized by Early-Onset Hypertension. Front.
Cardiovasc. Med. 9:896564. doi: 10.3389/fcvm.2022.896564
RESULTS
Discussion of Liddle’s Syndrome promoted integration of knowledge in cell
biology (inheritance patterns of genetic disease, pedigree analysis, ENaC
channel expression, structure and function); physiology (renal sodium and
water handling and regulation of blood volume and pressure), pathophysiology
(hypokalemia and hypertension) and pharmacology (anti-hypertensive drugs). In
addition, discussion promoted the application of basic science principles to
clinical reasoning.
CONCLUSION
A case report that described the pathophysiology of Liddle’s Syndrome was
successfully adapted for educational purposes to promote cross-disciplinary
integration of knowledge and provided an opportunity to reinforce the spiral
learning required in medical education.