METHOD OF EXPOSITION OF THE ANTEROPOSTERIOR AND POSTERIOR WALLS OF LEFT ATRIUM DURING THORACOSCOPIC SURGERIES ON ATRIAL FIBRILLATION Russian patent published in 2018 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, cardiovascular surgery. Pericardium cavity is approached by means of thoracoscopic instruments, which are inserted through thoracophores first into the right, then into the left pleural cavity. Then, ends of the bundles, 4 cm wide, 2 m long, are fixed to each of two directional strings during the operation. One directional string with a bundle fixed thereto is inserted through the fenestration of the pericardium from the right pleural cavity, alternately first to the transverse, then to the oblique sinuses of the pericardium. Ends of the strings with bundles fixed thereto are led to the left pleural cavity. Left pleural cavity is fenestrated in the 3 intercostal space along the left medioclavicular line using a thoracophore with a diameter of 5 mm. Directional strings and bundles are separated. Free ends of both bundles located in the left pleural cavity are excreted from the body through the fenestration formed in the 3 intercostal space along the left medioclavicular line and fixed with a clamp. Opposite ends of the bundles are introduced in the right pleural cavity. Right pleural cavity is fenestrated in the 3 intercostal space along the right medioclavicular line using a thoracophore with a diameter of 5 mm. Free ends of both bundles located in the right pleural cavity are excreted from the body through the fenestration formed in the 3 intercostal space along the right medioclavicular line and fixed with a clamp. Anteroposterior wall of the left atrium is exposured by dosed one-stage traction at the left and right ends of the bundle, the middle third of which is located in the transverse sinus of the pericardium. Posterior wall of the left atrium is exposured by dosed one-stage traction at the left and right ends of the bundle, the middle third of which is located in the oblique sinus of the pericardium.

EFFECT: method allows improving the exposure of the posterior and anteroposterior walls of the left atrium, reducing the risk of traumatization of the main vessels during manipulations in the transverse sinus of the pericardium.

1 cl, 1 dwg