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Related Concept Videos

Varicose Veins I: Introduction01:26

Varicose Veins I: Introduction

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Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
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Varicose Veins II: Diagnostic Studies and Interprofessional Care01:26

Varicose Veins II: Diagnostic Studies and Interprofessional Care

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Varicose veins, or varicosities, develop when the valves in the veins, which control blood flow, weaken or damage. It causes blood to pool and the veins to enlarge. Understanding the clinical manifestations, diagnostic approaches, and management options for varicose veins is crucial for effective treatment and relief.Clinical manifestationsClinical manifestations of varicose veins include a heavy, achy feeling or pain after prolonged standing or sitting. This discomfort can often be relieved by...
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Seasoning of Wood01:15

Seasoning of Wood

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Seasoning of wood is a crucial process aimed at reducing and stabilizing the moisture content within the wood to prevent future shrinkage, structural damage, or aesthetic issues once the wood is used in construction. Wood naturally swells when it absorbs moisture and contracts as it dries.
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
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What is Variation?01:14

What is Variation?

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Apart from the measures of central tendency, distribution, outliers, and the changing characteristics of data with time, an important characteristic of any data set is its variation or spread. In some data sets, the data values are concentrated closely near the mean; in others, the data values are more widely spread out from the mean.
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
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Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

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The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
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Variation01:19

Variation

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An important characteristic of any set of data is the variation in the data. In some data sets, the data values are concentrated closely near the mean; in other data sets, the data values are more widely spread out from the mean. The most common measure of variation, or spread, is the standard deviation, which is the square root of variance.
When independent and dependent variables are plotted on a scatter plot, the slope of a line is a value that describes the rate of change between the two...
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Articles linked to this work by shared authors, journal, and citation graph.

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Histopathology of Neovascularisation Observed During Saphenofemoral Re-Do High Ligation.

EJVES vascular forum·2021
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The influence of age on valve disease in patients with varicose veins analysed by transmission electron microscopy and stereology.

VASA. Zeitschrift fur Gefasskrankheiten·2018
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Asymmetrical Arterial Diameters.

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2017
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False Aneurysm of the Dorsal Pedal Artery.

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More great saphenous vein valves - less varicose veins?

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Valve disease in chronic venous disorders: a quantitative ultrastructural analysis by transmission electron microscopy and stereology.

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Updated: Jan 23, 2026

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
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Factors Determining Seasonal Variations in Varicose Vein Surgery.

Wolfgang G Mouton1, Christian Amonn2

  • 1Department of Surgery, Spital STS AG, Switzerland.

EJVES Short Reports
|June 15, 2019
PubMed
Summary

Varicose vein surgery timing is not solely seasonal; patient job demands are the primary driver. Symptoms and prevention become more critical factors for women and those with severe varicose veins (higher CEAP classes).

Keywords:
SeasonalSurgeryVariationVaricoseVein

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Area of Science:

  • Vascular Surgery
  • Patient-Reported Outcomes
  • Epidemiology of Venous Disease

Background:

  • Traditionally, varicose vein operations are scheduled in winter, assuming post-operative care benefits.
  • This study challenges the conventional timing by investigating patient and physician motivations for scheduling surgery.

Purpose of the Study:

  • To prospectively analyze the factors influencing the timing of varicose vein surgery.
  • To determine the primary drivers for scheduling interventions among patients and physicians.

Main Methods:

  • A prospective study involving 153 consecutive patients undergoing varicose vein surgery at a Swiss regional hospital.
  • Anonymous questionnaires collected data on CEAP classification, age, gender, and reasons for surgical timing, including job, symptoms, season, and lifestyle.

Main Results:

  • Varicose vein surgery timing showed an inverse correlation with average ambient temperatures.
  • Job requirements were the most common reason for surgery timing among men (41%), while symptoms and prevention were key for women (32%).
  • The importance of symptoms and prevention increased with varicose vein severity (CEAP classes 5-6), affecting 51.8% of these patients.

Conclusions:

  • The winter peak for varicose vein surgery appears coincidental rather than based on clear advantages.
  • Patient employment situations are the most significant factor in surgical planning.
  • Symptom severity and preventive measures are crucial considerations, particularly for female patients and those with advanced disease.