How to use anatomical dissections and prossections to contribute in avoiding erros in clinical practice

In a country of social and technological inequalities like Brazil, radiological features image as portable ultrasound are not always available. The challenge teaching performance of procedures that use the transfer of knowledge that add skills, especially those who need the anatomic three‐dimensional view, it is still a cause for constant quest for technical perfection of this task. Basic technical procedures merit special attention on education, which, despite commonplace, lack of effective warning mechanism for technical and tactical errors, due to anatomical traps, can result in difficult complications treatment, often specialized, not to mention the temporary or permanent sequelae, and may lead to death. Objective Present anatomical landmarks to the correct procedure of central venous access via subclavian, and chest access by water seal drainage in dissected anatomical specimens for students from pre‐clinical disciplines of the Santa Casa de São Paulo School of Medical Sciences, SP, Brazil. Experience report Students of third and fourth years of medical course attended disciplines about morphology, physiology, pathology and clinic in an integrative way for every Body System. They were presented to a prossected cadaver model of the right infraclavicular region through muscular windows, aiming to restitutio ad integrum of anatomical structures. The topography of the subclavian vessels was valued to subsidize important knowledge for the correct procedure of placements of central catheters. Dissection of the side wall of the thorax, in which myo ‐ aponeurotic layers, costal framework, parietal pleura, diaphragm muscle, thoracic organs and abdominal intraperitoneal and parietal peritoneum, were exposed to exalting thoraco‐abdominal transition, in order to promote identification of possible errors in access to pleural cavity at the time of pleural drainage in water seal. Results The teaching method allowed the identification of key anatomical landmarks, with visualization and manipulation of anatomical structures, repetitively, allowing for training procedure central venous access through the subclavian and thoracic drainage in in water seal. Conclusion Anatomical dissections and prossections applied to clinical practice, preserving structures and topography, offer unlimited training interventions, minimizing error to perform procedures which are not available imaging technology as support.