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Telesurgery systems integrate multimodal communication and robotic technologies to enable surgical procedures to be performed from remote locations. They allow human surgeons to intuitively control laparoscopic instruments and to navigate within the human body. In this paper, we present selected topics on multimodal interaction in the context of telesurgery applications. These are results from the...
Extracorporeal circulation (ECC) systems are routinely used during different procedures in cardiac surgery. The ECC used in this experiment was designed to ensure organ perfusion in an emergency situation. While the patient suffers from cardiogenic shock the novel semi-automated-priming extracorporeal circulatory support system (Lifebridge B2T) enables stabilization in or transportation to a clinic...
Cardiopulmonary bypass was rarely used for patients undergoing emergency circulatory resuscitation due to the large size and complicated set-up of currently available systems. The LIFEBRIDGE B2T system is a new portable system consisting of a disposable patient unit with a cardiopulmonary bypass circuit, a control unit, and a base unit with user interface. The portability of the system (17 kg, with...
The precise determination of the length of artificial chordae and coevally the gental fixation of the defined length of the chordae on the mitral valve remains a challenge especially for the minimally invasive working heart surgeon. Methods to secure the correct length of the artificial chordae have been presented in the past either with the pean clamp or the more convenient but more breakable method...
We have developed an experimental system for minimally invasive surgery providing force feedback and automation of recurring task. The system consists of four robotic arms, which can be equipped with either minimally invasive instruments or a stereo camera. The master console provides a stereo view of the field of operation and two input devices can feed back forces to the user. We have utilized this...
Background Currently, complete lymph node dissection (CLND) is recommended after identification of a metastatic lymph node by sentinel lymph node biopsy (SLNB). Guidelines suggest that CLND should be performed as a separate procedure, and a sufficient number of nodes should be examined. Our objective was to examine the utilization, timing, and adequacy of CLND for melanoma in the United States. ...
The use of sutures as artificial chordae is widely established in mitral valve reconstruction. After the correct length of the chordae is determined by saline injection, there is a variety of methods to secure that length before tying surgical knots. We investigated the amount of damage posed by applying a haemoclip or a pean clamp and by using a knot-pusher. No differences in breaking forces were...
Primary cardiac and mediastinal tumors are rare at all ages. We report on a rescue therapy in a neonate due to a severely obstructed left ventricular outflow tract.
The evaluation of the haptic feature for surgical tasks especially including the value of surgical experience for telemanipulation is presented. In an experimental telemanipulating surgical platform the amount offeree in the dominant and non-dominant hand and its dependency on the surgical experience was examined.
Dynamic measures of heart rate variability (HRV) and baroreflex sensivity (BRS) may uncover the postoperative course of patients undergoing cardiovascular surgery. 162 patients participated in a prospective study; Cardiovascular signals were recorded the day before, 24 h after surgery, one week and three month after surgery. Time domain parameters of heart rate variability showed a significant (p...
In the last decade, the advancement of endoscopic and minimally invasive surgery has had a significant impact on patients and surgeons in various surgical fields. But in heart surgery the design of telemanipulators did not leverage endoscopic procedures. The focus is on building an experimental system for endoscopic and minimally invasive heart surgery which provides force feedback. In addition automating...
Baroreflex sensitivity (BRS) and heart rate variability (HRV) have significant influence on the patients' prognosis after cardiovascular events. The following study was performed to assess differences in the response of the autonomic regulation in hypertensive and normotensive patients undergoing cardiac surgery with heart-lung machine. 166 consecutive patients were enrolled in a prospective study;...
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