Splenic Rhythms and Postprandial Dynamics in Physiology, Portal Hypertension, and Functional Hyposplenism: A Review.

Background: Before the discovery of immunological and haematological functions of the spleen, it had for centuries been considered to be a digestive organ of variable size with a role in the portal vein system and nutritional metabolism. In the 19th and 20th centuries, volume changes in the spleen related to nutrition were studied using plethysmographic measurements. Rhythmical and regulatory functions of the spleen were demonstrated in the haemodynamics of the splanchnic region and were described as a "hepatolienal pendulum," a "Windkessel function," or a "pressure compensation.

Does the Spleen Have a Function in Digestion? Medical History, Phylogenetic and Embryological Development of the Splenogastric System.

Background: Before the spleen was discovered to be a lymphatic blood organ, it had for centuries been considered to be a digestive organ. Concepts of a regulative, secretory and resorptive function in the digestive system were based mainly on a postulated connection between the stomach and the spleen. Splenogastric vascular connections have recently been rediscovered by modern surgery.

Postprandial dynamics of splenic volume in healthy volunteers.

Throughout the history of medicine, many functions have been attributed to the spleen and numerous researchers have focused on a postulated digestive function. Beginning in 1825, systematic animal studies showed evidence for a postprandial increase in splenic volume (SV) with a peak 30 min to five hours after food intake. Since the introduction of imaging techniques, two studies have been conducted on humans, revealing a decrease in SV 30 to 45 min postprandially.

[Recommendations for problem solving in integrative postgraduate medical training of physicians at anthroposophic hospitals in Germany and Switzerland].

Background: In the context of the first-time evaluation of the quality and problems of integrative postgraduate medical training (PGMT) at German and Swiss anthroposophic hospitals, all 240 trainees and all 214 trainers were asked to propose options for problem solutions.

Method: The study included a cross-sectional questionnaire survey with sections for further comments. The data were evaluated with qualitative content analysis (Mayring).

[Problems in integrative postgraduate medical training of physicians at anthroposophic hospitals in Germany and Switzerland].

Background: Anthroposophic hospitals provide integrative medical care by complementing conventional (CON) with anthroposophic medicine (AM). They teach integrative medicine in postgraduate medical training (PGMT). In a first evaluation of PGMT quality in AM, we analyzed the problems of this training from the perspectives of trainers and trainees.

The subjectively perceived quality of postgraduate medical training in integrative medicine within the public healthcare systems of Germany and Switzerland: the example of anthroposophic hospitals.

Background: Integrative medicine (IM) integrates evidence-based Complementary and Alternative Medicine (CAM) with conventional medicine (CON). Medical schools offer basic CAM electives but in postgraduate medical training (PGMT) little has been done for the integration of CAM. An exception to this is anthroposophic medicine (AM), a western form of CAM based on CON, offering an individualized holistic IM approach.

Impact of colored light on cardiorespiratory coordination.

Background. Light exposure to the eye can influence different physiological functions, for example, the suprachiasmatic nucleus (SCN). By affecting the autonomic nervous system, the SCN may influence the heart rate variability (HRV).