Application and Nursing Experience of Peristaltic Pump in Local Anesthesia during Daytime Varicose Vein Surgery

2021 ◽  
Vol 10 (02) ◽  
pp. 65-70
Author(s):  
雪雪 郁
Keyword(s):  
Local Anesthesia ◽  
Varicose Vein ◽  
Peristaltic Pump ◽  
Varicose Vein Surgery ◽  
Nursing Experience

Prilocaine pharmacokinetics and the influence of vitamin C on methaemoglobin concentrations in tumescent anaesthesia

Phlebologie ◽  
2007 ◽  
Vol 36 (03) ◽  
pp. 145-150 ◽  
Author(s):  
A. Teichler ◽  
T. Standl ◽  
A. Diederich ◽  
I. Moll ◽  
G. Bruning
Keyword(s):  
Vitamin C ◽  
Dehydrogenase Activity ◽  
Local Anesthesia ◽  
Varicose Vein ◽  
Maximum Plasma ◽  
Safe Procedure ◽  
Varicose Vein Surgery ◽  
Tumescent Local Anesthesia ◽  
High Doses ◽  
Glucose 6 Phosphate Dehydrogenase

SummaryIn tumescent local anesthesia high doses of prilocaine are used but valid data on the pharmacokinetics and metabolism of prilocaine during this technique of anesthesia are rare. Patients, methods: In this study plasma prilocaine and methaemoglobin concentrations were measured after subcutaneous injection of prilocaine at doses of 6.69 to 19.21 mg/kg in one hundred patients undergoing varicose vein surgery under tumescent local anesthesia. Half of the patients were randomised to intravenous treatment with 2000 mg ascorbic acid. Glucose-6-phosphate dehydrogenase activity was measured preoperatively. Results: Maximum plasma prilocaine concentrations ranged between 0.14 and 0.86 μg/ml and thus remained below the toxic threshold. Methaemoglobin concentrations ranged between 0.4 and 16.9%. There was no significant effect of vitamin C on the methaemoglobin concentration. Glucose-6-phosphate dehydrogenase activity and methaemoglobin concentrations did not correlate. Conclusions: Tumescent anesthesia with prilocaine at a maximum dose of 20 mg/kg body weight is a safe procedure in varicose vein surgery although the risk of methaemoglobinemia is not reduced by using vitamin C.

Varicose vein surgery under anti-platelet therapy

Phlebologie ◽  
2008 ◽  
Vol 37 (06) ◽  
pp. 287-297 ◽  
Author(s):  
P.-M. Baier ◽  
Z. T. Miszczak
Keyword(s):  
Varicose Vein ◽  
Bleeding Time ◽  
Varicose Veins ◽  
Bleeding Risk ◽  
Bleeding Complications ◽  
Review Of The Literature ◽  
Varicose Vein Surgery ◽  
Anti Platelet Therapy ◽  
Male Patients ◽  
Acute Atherothrombosis

Summary Background: Platelet function inhibitors (PFI) are used for prophylaxis of atherothrombosis. These drugs cause a prolongation of the bleeding time and should eventually be stopped before an elective operation. However, there is a risk that a perioperative pause of PFI lead to acute atherothrombosis. Objective: Our aim was to study whether a discontinuation of PFI therapy is necessary to avoid bleeding complications in patients undergoing varicose vein surgery. Methods: Selective review of the literature and retrospective analysis of clinical data of our own patients. Results: In the years 2002 to 2007 a total of 10 827 patients have been operated on varicose veins, 673 (6.2%) of these aged 32–86 years (67 ± 7.9) receiving permanent PFI therapy: 256 male patients (38.0%) and 417 female (62.0%), 39.1% categorized as ASA III patients: male 11.6%, female 27.5%. 38 patients who continued PFI therapy did not demonstrate haemorrhagic complications and none of those pausing anti-platelet medication experienced thromboembolic complications. The literature survey confirmed our finding that it is not necessary to suspend PFI medication for varicose vein surgery as the bleeding risk can be controlled for by technical means. Conclusion: Discontinuation of PFI therapy prior to interventions on varicose veins does not seem to be necessary, further studies are essential though.

Recurrent varicose veins below the knee after varicose vein surgery

Phlebologie ◽  
2007 ◽  
Vol 36 (03) ◽  
pp. 132-136
Author(s):  
M. W. de Haan ◽  
J. C. J. M. Veraart ◽  
H. A. M. Neumann ◽  
P. A. F. A. van Neer
Keyword(s):  
Varicose Vein ◽  
Varicose Veins ◽  
Varicose Vein Surgery ◽  
Proximal Point ◽  
Perforating Veins ◽  
Recurrent Varicose Veins ◽  
Below The Knee ◽  
Duplex Imaging ◽  
Additional Value

SummaryThe objectives of this observational study were to investigate whether varicography has additional value to CFDI in clarifying the nature and source of recurrent varicose veins below the knee after varicose vein surgery and to investigate the possible role of incompetent perforating veins (IPV) in these recurrent varicose veins. Patients, material, methods: 24 limbs (21 patients) were included. All patients were assessed by a preoperative clinical examination and CFDI (colour flow duplex imaging). Re-evaluation (clinical and CFDI) was done two years after surgery and varicography was performed. Primary endpoint of the study was the varicographic pattern of these visible varicose veins. Secondary endpoint was the connection between these varicose veins and incompetent perforating veins. Results: In 18 limbs (75%) the varicose veins were part of a network, in six limbs (25%) the varicose vein appeared to be a solitary vein. In three limbs (12.5%) an incompetent sapheno-femoral junction was found on CFDI and on varicography in the same patients. In 10 limbs (41%) the varicose veins showed a connection with the persistent below knee GSV on varicography. In nine of these 10 limbs CFDI also showed reflux of this below knee GSV. In four limbs (16%) the varicose veins showed a connection with the small saphenous vein (SSV). In three limbs this reflux was dtected with CFDI after surgery. An IPV was found to be the proximal point of the varicose vein in six limbs (25%) and half of these IPV were detected with CFDI as well. Conclusion: Varicography has less value than CFDI in detecting the source of reflux in patients with recurrent varicose veins after surgery, except in a few cases where IPV are suspected to play a role and CFDI is unable to detect these IPV.

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