Open AccessThe effect of distal pulmonary obstruction or elevated atrial pressures on pulmonary flow and pulmonary vascular disease: a mathematical flow circuit analogy model-based analysis
Author(s) -
Balram Babu Rajanbabu,
Raviraju Chigullapally
Publication year - 2019
Publication title -
indian journal of thoracic and cardiovascular surgery/indian journal of thoracic and cardiovascular surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.114
H-Index - 9
eISSN - 0973-7723
pISSN - 0970-9134
DOI - 10.1007/s12055-019-00816-z
Subject(s) - operability , medicine , cardiology , vascular resistance , cardiac surgery , pulmonary hypertension , diastole , hemodynamics , blood pressure , engineering , reliability engineering
Late presentation of large left to right shunts is a major problem in developing countries and evaluating the operability is a challenge during preoperative evaluation. The factors that determine the development and progression of the pulmonary vascular disease are still largely unknown, though there is evidence to show that increased pulmonary flow is the main contributing factor. We have found cases of operability despite late presentation of ventricular septal defect (VSD). In some of these cases, the reason for operability may lie in associations. We herein attempt to provide a mathematical explanation for their operability.