scholarly journals CardioVR-ReTone—Robotic Exoskeleton for Upper Limb Rehabilitation following Open Heart Surgery: Design, Modelling, and Control

Symmetry ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 81
Author(s):  
Bogdan Mocan ◽  
Claudiu Schonstein ◽  
Calin Neamtu ◽  
Mircea Murar ◽  
Mircea Fulea ◽  
...  

Following cardiac surgery, patients experience difficulties with the rehabilitation process, often finding it difficult, and therefore lack the motivation for rehabilitation activities. As the number of people aged 65 and over will rise by 207 percent globally by 2050, the need for cardiac rehabilitation will significantly increase, as this is the main population to experience heart problems. To address this challenge, this paper proposes a new robotic exoskeleton concept with 12 DoFs (6 DoFs on each arm), with a symmetrical structure for the upper limbs, to be used in the early rehabilitation of cardiac patients after open-heart surgery. The electromechanical design (geometric, kinematic, and dynamic model), the control architecture, and the VR-based operating module of the robotic exoskeleton are presented. To solve the problem of the high degree of complexity regarding the CardioVR-ReTone kinematic and dynamic model, the iterative algorithm, kinetic energy, and generalized forces were used. The results serve as a complete model of the exoskeleton, from a kinematic and dynamic point of view as well as to the selection of the electric motors, control system, and VR motivation model. The validation of the concept was achieved by evaluating the exoskeleton structure from an ergonomic point of view, emphasizing the movements that will be part of the cardiac rehabilitation.

2015 ◽  
Vol 115 (4) ◽  
pp. 548-552 ◽  
Author(s):  
Quinn R. Pack ◽  
Kent J. Dudycha ◽  
Kyle P. Roschen ◽  
Randal J. Thomas ◽  
Ray W. Squires

2017 ◽  
Vol 35 (4) ◽  
pp. 285
Author(s):  
Phavinee Paorod ◽  
Weerapong Chidnok ◽  
Jarun Sayasathid

Objective: To investigate the effects of home-based cardiac rehabilitation program on exercise capacity using the six-minute walk test (6-MWT) in open heart surgery patients, Naresuan University Hospital.Material and Method: In a quasi-experimental study design, seventy patients who were diagnosed with heart diseases and received open heart surgery at Cardiac Center, Naresuan University Hospital were enrolled and collected data from October 2015 - September 2016 (n=70). The patients completed 8-12 weeks home-based cardiac rehabilitation program. The patients were performed the 6-MWT before hospital discharge, the first and second follow up time point. Data were expressed as average mean and chi-square test were used to determine the relationships among outcome parameters.Results: There was a significant within-group in 6-MWT distance after completed home-based cardiac rehabilitation program (377.0±69.0 meters) compared to before hospital discharge (209.0±62.0 meters) and the first follow up time point (4-8 weeks) (306.0±88.0 meters) (p-value<0.050).Conclusion: The 8-12 weeks home-based cardiac rehabilitation program exhibited significant positive effects on exercise capacity in open heart surgery patients, Naresuan University Hospital.


Author(s):  
D. Conijn ◽  
R. A. F. de Lind van Wijngaarden ◽  
H. M. Vermeulen ◽  
T. P. M. Vliet Vlieland ◽  
J. J. L Meesters

Abstract Aim Although referral to phase 2 cardiac rehabilitation (CR) following open-heart surgery is recommended in professional guidelines, according to the literature, participation rates are suboptimal. This study investigates the referral and enrolment rates, as well as determinants for these rates, for phase 2 CR following open-heart surgery via sternotomy. Methods A cross-sectional survey study was conducted among patients who underwent open-heart surgery via sternotomy in a university hospital. Data on referral and enrolment rates and possible factors associated with these rates (age, sex, type of surgery, educational level, living status, employment, income, ethnicity) were collected by a questionnaire or from the patient’s medical file. Univariate logistic regression analysis (odds ratio) was used to study associations of patient characteristics with referral and enrolment rates. Results Of the 717 eligible patients, 364 (51%) completed the questionnaire. Their median age was 68 years (interquartile range 61–74) and 82 (23%) were female. Rates for referral to and enrolment in phase 2 CR were 307 (84%) and 315 (87%), respectively. Female sex and older age were independently associated with both non-referral and non-enrolment. Additional factors for non-enrolment were surgery type (coronary artery bypass grafting with valve surgery and miscellaneous types of relatively rare surgery), living alone and below-average income. Conclusion Phase 2 CR referral and enrolment rates for patients following open-heart surgery were well over 80%, suggesting adequate adherence to professional guidelines. During consultation, physicians and specialised nurses should pay more attention to certain patient groups (at risk of non-enrolment females and elderly). In addition, in-depth qualitative research to identify reasons for non-referral and/or non-enrolment is needed.


1979 ◽  
Vol 32 (1-4) ◽  
pp. 148-156 ◽  
Author(s):  
H.-J. Meffert ◽  
B. Dahme ◽  
B. Flemming ◽  
P. Götze ◽  
G. Huse-Kleinstoll ◽  
...  

1983 ◽  
pp. 113-118 ◽  
Author(s):  
P. Tienari ◽  
J. Outakoski ◽  
A. Juolasmaa ◽  
R. Hirvenoja

1978 ◽  
Vol 39 (02) ◽  
pp. 474-487 ◽  
Author(s):  
E R Cole ◽  
F Bachmann ◽  
C A Curry ◽  
D Roby

SummaryA prospective study in 13 patients undergoing open-heart surgery with extracorporeal circulation revealed a marked decrease of the mean one-stage prothrombin time activity from 88% to 54% (p <0.005) but lesser decreases of factors I, II, V, VII and X. This apparent discrepancy was due to the appearance of an inhibitor of the extrinsic coagulation system, termed PEC (Protein after Extracorporeal Circulation). The mean plasma PEC level rose from 0.05 U/ml pre-surgery to 0.65 U/ml post-surgery (p <0.0005), and was accompanied by the appearance of additional proteins as evidenced by disc polyacrylamide gel electrophoresis of plasma fractions (p <0.0005). The observed increases of PEC, appearance of abnormal protein bands and concomitant increases of LDH and SGOT suggest that the release of an inhibitor of the coagulation system (similar or identical to PIVKA) may be due to hypoxic liver damage during extracorporeal circulation.


1967 ◽  
Vol 18 (03/04) ◽  
pp. 634-646 ◽  
Author(s):  
N Thurnherr

SummaryBlood clotting investigations have been executed in 25 patients who have undergone open heart surgery with extracorporeal circulation. A description of alterations in the activity of blood clotting factors, the fibrinolytic system, prothrombin consumption and platelets during several phases of the operation is given.


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