Biomaterials with Controlled Elasticity for Post-Operation Recovery

2010 ◽  
pp. 263-271
Author(s):  
M. Carmen ◽  
E. Alexandra
Keyword(s):  
Post Operation

LAPAROSCOPIC TRANS-ABDOMINAL PRE-PERITONEAL (TAPP) REPAIR FOR TREATMENT INGUINAL HERNIA DISEASE

2018 ◽  
Vol 8 (4) ◽  
pp. 76-80
Author(s):  
Thao Nguyen Minh ◽  
Vu Pham Anh ◽  
Tri Nguyen Huu ◽  
Phu Nguyen Doan Van ◽  
Phuc Nguyen Thanh ◽  
...  
Keyword(s):  
Inguinal Hernia ◽  
Operative Time ◽  
Bilateral Hernia ◽  
Repair Method ◽  
Tapp Repair ◽  
Post Operation ◽  
Average Operative Time ◽  
The Mean

Background: Inguinal hernia is one of the commonest surgical diseases and there are many different techniques applied. The laparoscopic trans-abdominal pre-peritoneal (TAPP) repair allows a better view of the inguinal anatomy, evaluation of opposite side and resolve combined peritoneal diseases as well. Patient and method: The study included 60 cases with inguinal hernia that have been treated by laparoscopic transabdominal pre-peritoneal (TAPP) repair. Method: Description, prospective follow-up. Result: The mean age was 58±18.2. 96.7% were males. The average operative time was 45.6±15.1 minutes for one side hernia, 73±25.2 minutes for bilateral hernia. 02 cases have been post-operation inguinal seroma complication (3.3%), 02 cases with hydrocele (3.3%), 01 case with abdominal seroma (1.7%). 04 cases (6.7%) opposite inguinal hernia were detected and 05 cases (8.3%) with combined diseases were resolved. Duration of post-operative stay was 3.9±1.1 days. Conclusion: TAPP is a safe and feasible procedure, allows evaluation of opposite side and resolve combined peritoneal diseases.

COMPUTER PREDICTION OF ANTICOAGULATION STATUS AND WARFARIN DOSE FOLLOWING CARDIAC SURGERY

1987 ◽  
Author(s):  
M J Crow ◽  
A B Latif ◽  
A I Critchley ◽  
C Stainton ◽  
P Nealon ◽  
...  
Keyword(s):  
Therapeutic Range ◽  
Maintenance Dose ◽  
Prosthetic Heart Valve ◽  
Warfarin Dose ◽  
Study Data ◽  
Computer Prediction ◽  
Prothrombin Activity ◽  
Upper Limit ◽  
Post Operative Period ◽  
Post Operation

Fluctuations are freguently seen in the anticoagulant status of patients in the immediate post operative period following prosthetic heart valve replacement. These patients are at high risk of haemorrhage or thromboembolism. We have used a pharmokinetic model of warfarin metabolism to develop a computer programme to predict the maintenance dose of warfarin from early prothrombin activity determinations. This will enable controlled anticoagulation to be achieved. The expression for warfarin kinetics employs 4 constants determined by the residual sum of the sguares, which are used immediately to redefine dosage predictions. In a pilot study data obtained from 16 patients post operation 3, 5 and 7 days after commencing treatment, has been used to predict the reguired maintenance dose at 21 days. These predicted doses were then compared with the maintenance dose achieved by clinical practice. The programme was told to optimise its dose to achieve a PT ratio of 3 whereas clinically the ratio was allowed to vary in the therapeutic range of 2 to 4. Predicted doses at 21 days are shown.in the table:Correlation between predicted and clinical maintenance doses after 3 and 5 days treatment was poor but had improved significantly by 7 days, despite similar levels of prothrombin activity. Predicted prothrombin activity never exceeded the upper limit of the therapeutic range, and the predicted dose can be uprated on addition of further data within 2 minutes.After 7 days computer predicted warfarin dose has produced a good correlation with the clinical maintenance dose (the doses of only 3 patients varying by more than 1 mg/day). The significant fluctuations seen in the prothrombin ratio during clinical dosage were not observed with computer dosing and we now feel it is safe to use this programme to anticoagulate patients post operatively.

scholarly journals Early graft calcification without graft dysfunction after living donor liver transplantation: two case reports

2021 ◽  
Vol 14 (5) ◽  
pp. 1491-1495
Author(s):  
Peilin Li ◽  
Masaaki Hidaka ◽  
Yu Huang ◽  
Takanobu Hara ◽  
Kantoku Nagakawa ◽  
...  
Keyword(s):  
Liver Transplantation ◽  
Hepatic Artery ◽  
Living Donor ◽  
Living Donor Liver Transplantation ◽  
Liver Graft ◽  
Graft Dysfunction ◽  
Donor Liver ◽  
Donor Liver Transplantation ◽  
First Case ◽  
Post Operation

AbstractGraft calcification after liver transplantation (LT) has seldom been reported, but almost of all previously reported cases have been attributed to graft dysfunction. We herein report two cases of graft calcification without liver dysfunction after living donor liver transplantation (LDLT). Two patients who underwent LDLT were found to have graft calcification in the early postoperative period (< 1 month). Calcification in the first case was found at the cut edge of the liver at post-operative day (POD) 10, showing a time-dependent increase in calcification severity. The second patient underwent hepatic artery re-anastomosis due to hepatic artery thrombosis on POD4 and received balloon-occluded retrograde transvenous obliteration of the splenic kidney shunt due to decreased portal vein blood flow on POD6. She was found to have diffuse hepatic calcification in the distant hepatic artery area at 1-month post-operation followed by gradual graft calcification at the resection margin at 6-month post-operation. Neither case showed post-operative graft dysfunction. Calcification of the liver graft after LDLT is likely rare, and graft calcification does not seem to affect the short-term liver function in LDLT cases. We recommend strictly controlling the warm/cold ischemia time and reducing the physical damage to the donor specimen as well as monitoring for early calcification by computed tomography.

scholarly journals The analgesic efficacy of extracorporeal shock wave combined with percutaneous vertebroplasty in the treatment of osteoporotic thoracolumbar compression fractures in postmenopausal women

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Xiaowei Liu ◽  
Hui Wang ◽  
Yang Zhang ◽  
Mingling Wang ◽  
Yujin Qiu ◽  
...  
Keyword(s):  
Shock Wave ◽  
Postmenopausal Women ◽  
Percutaneous Vertebroplasty ◽  
Reduction Rate ◽  
Compression Fracture ◽  
Analgesic Efficacy ◽  
Small Sample ◽  
Compression Fractures ◽  
Extracorporeal Shock Wave ◽  
Post Operation

Abstract Background To explore the analgesic efficacy of extracorporeal shock wave (ESW) combined with percutaneous vertebroplasty (PVP) after reduction in overextension position in the treatment of osteoporotic thoracolumbar compression fractures in postmenopausal women. Methods The data of postmenopausal women with osteoporotic thoracolumbar compression fracture admitted in our department from January 2017 to October 2019 were analyzed retrospectively. They were divided into groups of unipedicular percutaneous kyphoplasty (U-PKP n = 21), bipedicular PKP (B-PKP n = 20), and ESW combined with PVP after reduction in overextension position (EP-PVP n = 18). The improvement of pain and vertebral height in three groups was compared. Results Postoperative compression rate and Cobb angle of vertebral fractures in the three groups were all lower than those before surgery, and the differences between pre-operation and post-operation were statistically significant (P < 0.05). The visual analog scale (VAS) and Oswestry dysfunction index (ODI) scores of the three groups decreased significantly after the operation (P < 0.05). The ODI scores of the EP-PVP group in the third months after the operation were significantly improved compared with the other two groups, and the difference was statistically significant (P < 0.05). Conclusions In our small-sample study, all three treatment schemes can treat osteoporotic compression fracture of thoracolumbar vertebrae in postmenopausal women, relieve pain, and improve quality of life. ESW combined with PVP after reduction in overextension position could achieve a good vertebral reduction rate and improve kyphosis, and may reduce the application of analgesic drugs.

scholarly journals Biodegradable magnesium screws in elbow fracture fixation: Clinical case series

2021 ◽  
pp. 221049172098698
Author(s):  
Wai-Him Lam ◽  
Chi-Yin Tso ◽  
Ning Tang ◽  
Wing-Hoi Cheung ◽  
Ling Qin ◽  
...  
Keyword(s):  
Case Series ◽  
Elbow Fracture ◽  
Normal Range ◽  
Head Region ◽  
Screw Head ◽  
Loss Of Reduction ◽  
Clinical Series ◽  
Post Operation ◽  
Bioabsorbable Screws ◽  
Biodegradable Magnesium

Biodegradable magnesium-based implants are innovative alternatives that potentially eliminate the need for implant removal. Recent studies have demonstrated the osteogenic properties and bacterial inhibition potentials of magnesium screws. We reported a clinical series of three elbow fracture cases, where magnesium screws were used in the treatment of one radial head and two capitellum fractures. Postoperative clinical courses were uneventful, and fracture healing occurred within 3 months. In all cases, radiolucencies were observed around implants especially in the screw head region at 2 months post-operation, but disappeared with consolidation at 1 year post-operation. All patients achieved near normal range of motion, minimal symptoms and good functional outcomes. No complication such as failure of fixation, loss of reduction, malunion or infection was seen. No implant revision or removal was necessary. Magnesium bioabsorbable screws are shown to be a viable option for these fractures.

scholarly journals SEM and TEM for identification of capsular fibrosis and cellular behavior around breast implants – a descriptive analysis

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Britta Kuehlmann ◽  
Isabel Zucal ◽  
Clark Andrew Bonham ◽  
Lydia-Marie Joubert ◽  
Lukas Prantl
Keyword(s):  
Descriptive Analysis ◽  
Breast Implants ◽  
Foreign Body Response ◽  
Future Research ◽  
Cellular Mechanisms ◽  
Tem Analysis ◽  
Capsular Fibrosis ◽  
Sem And Tem ◽  
Post Operation ◽  
Bacterial Accumulation

Abstract Background Capsular fibrosis (CF) is the most common long-term complication in implant-based breast augmentation. It is well accepted that the foreign body response (FBR) instigates the development of fibrotic disease. Our study aims to compare murine and human samples of CF and describe the cellular and extracellular matrix (ECM) composition using scanning and transmission electron microscopy (SEM and TEM). Results Miniature microtextured silicone breast implants were implanted in mice and subsequently harvested at days 15, 30, and 90 post-operation. Isolated human capsules with the most aggravated form of CF (Baker IV) were harvested post-operation. Both were analyzed with SEM and TEM to assess cellular infiltration and ECM structure. An architectural shift of collagen fiber arrangement from unidirectional to multidirectional was observed at day 90 when compared to days 15 and 30. Fibrosis was observed with an increase of histiocytic infiltration. Moreover, bacterial accumulation was seen around silicone fragments. These findings were common in both murine and human capsules. Conclusions This murine model accurately recapitulates CF found in humans and can be utilized for future research on cellular invasion in capsular fibrosis. This descriptive study helps to gain a better understanding of cellular mechanisms involved in the FBR. Increases of ECM and cellularity were observed over time with SEM and TEM analysis.

scholarly journals Effects of chitosan-collagen dressing on wound healing in vitro and in vivo assays

2021 ◽  
Vol 19 ◽  
pp. 228080002198969
Author(s):  
Min-Xia Zhang ◽  
Wan-Yi Zhao ◽  
Qing-Qing Fang ◽  
Xiao-Feng Wang ◽  
Chun-Ye Chen ◽  
...  
Keyword(s):  
Wound Healing ◽  
Wound Dressing ◽  
Type I Collagen ◽  
Inhibition Zone ◽  
Negative Control ◽  
Type I ◽  
Nih3t3 Cells ◽  
Post Operation

The present study was designed to fabricate a new chitosan-collagen sponge (CCS) for potential wound dressing applications. CCS was fabricated by a 3.0% chitosan mixture with a 1.0% type I collagen (7:3(w/w)) through freeze-drying. Then the dressing was prepared to evaluate its properties through a series of tests. The new-made dressing demonstrated its safety toward NIH3T3 cells. Furthermore, the CCS showed the significant surround inhibition zone than empty controls inoculated by E. coli and S. aureus. Moreover, the moisture rates of CCS were increased more rapidly than the collagen and blank sponge groups. The results revealed that the CCS had the characteristics of nontoxicity, biocompatibility, good antibacterial activity, and water retention. We used a full-thickness excisional wound healing model to evaluate the in vivo efficacy of the new dressing. The results showed remarkable healing at 14th day post-operation compared with injuries treated with collagen only as a negative control in addition to chitosan only. Our results suggest that the chitosan-collagen wound dressing were identified as a new promising candidate for further wound application.

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