[Hypertension and SCUBA diving].

Hypertension is a major cardiovascular risk factor in our population. This condition is widely recognized as an exacerbating factor for several physiopathological mechanisms, especially under an intense physical effort. In this article we focus on the link between high blood pressure and risk factors in scuba diving.

Bilateral Deficit During Jumping Tasks: Relationship With Speed and Change of Direction Speed Performance.

Bishop, C, Berney, J, Lake, J, Loturco, I, Blagrove, R, Turner, A, and Read, P. Bilateral deficit during jumping tasks: relationship with speed and change of direction speed performance. J Strength Cond Res 35(7): 1833-1840, 2021-Research to date has investigated the phenomenon of the bilateral deficit (BLD); however, limited research exists on its association with measures of athletic performance.

[Medical certification for high altitude travel and scuba diving].

People are more and more looking for adventures and discovery of unusual locations. Journeys to high altitude and scuba diving are part of these activities and their access has become easier for a lot of people not necessarily experienced with their dangers. The general practitioner will have to be able to deliver some advices and recommendations to his patients about the risks related to these activities and their ability to practice them.

Computed tomography colonography imaging of pneumatosis intestinalis after hyperbaric oxygen therapy: a case report.

Introduction: Pneumatosis intestinalis is a condition characterized by the presence of submucosal or subserosal gas cysts in the wall of digestive tract. Pneumatosis intestinalis often remains asymptomatic in most cases but may clinically present in a benign form or less frequently in fulminant forms. Treatment for such conditions includes antibiotic therapy, diet therapy, oxygen therapy and surgery.

[Exotic snake bites in Switzerland].

Exotic snake bites are not rare in Switzerland. Treatment can be challenging for medical staff particularly as rapid and focused management are critical to improve patient outcome. The case of a young herpetologist bitten by an exotic venomous snake is used to review measures to be taken before arrival at the emergency department and to highlight key points of management.

[Elective indication for hyperbaric oxygen therapy].

Creation of an hyperbaric medical center in Geneva allows development of elective indications of hyperbaric oxygen therapy. Physiologics effects of hyperbaric oxygen are well known, but credibles clinicals trials lacks. Frequents indications such as diabetic foot ulcer, ischemic ulcer or anaerobic infection will be rewieved here.

[Scuba diving and hyperbaric medicine].

Scuba diving is widely practiced in Switzerland. Although rare, decompression sickness may be serious and require specialized treatment. Hyperbaric therapy has been used for a long time with beneficial effects on decompression sickness and gaseous embolism.

Dynamics of Trion formation in InxGa1-xAs quantum wells.

We show a double path mechanism for the formation of charged excitons (trions); they are formed through bi- and trimolecular processes. This directly implies that both negatively and positively charged excitons coexist in a quantum well, even in the absence of excess carriers. The model is substantiated by time-resolved photoluminescence experiments performed on a very high quality InxGa1-xAs quantum well sample, in which the photoluminescence contributions at the energy of the trion and exciton and at the band edge can be clearly separated and traced over a broad range of times and densities.

Determination of the exciton formation in quantum wells from time-resolved interband luminescence.

We present the results of a detailed time-resolved luminescence study carried out on a very high quality InGaAs quantum well sample where the contributions at the energy of the exciton and at the band edge can be clearly separated. We perform this experiment with a spectral resolution and a sensitivity of the setup, allowing us to keep the observation of these two separate contributions over a broad range of times and densities. This allows us to directly evidence the exciton formation time, which depends on the density as expected from theory.

Appropriateness of indications for surgery of lumbar disc hernia and spinal stenosis.

Study Design: This prospective study examines the appropriateness of indications for surgery of herniated intervertebral disc and spinal stenosis in patients undergoing surgery in a university hospital setting.

Objective: To evaluate the appropriateness of surgery using explicit criteria developed by an expert panel in the United States.

Summary Of Background Data: The use of surgery for herniated intervertebral disc and spinal stenosis varies widely within and among countries.

[Pituitary adenoma secreting prolactin. Results of their surgical treatment].

A retrospective study of 75 patients operated for pituitary prolactin-secreting adenomas between 1972 and 1992 is presented. 57 were women, 18 males. The major symptom was amenorrhea for women and impotence for men.

Head injuries in children: a chronicle of a quarter of a century.

Children aged 0-15 years hospitalized in Geneva for head trauma during the last quarter of a century are reviewed. More than half of the severely injured children were not from Geneva area. New methods of management have been introduced progressively.

Paediatric head trauma: influence of age and sex. II. Biomechanical and anatomo-clinical correlations.

A consecutive, unselected series of 1812 cases of head trauma in children less than 15 years of age and admitted hospital over a period of 8.5 years was studied. Data concerning the grade of energy involved, the ages of the victims, the types of pathologies caused and the clinical features noted were collected and statistically analysed.

Paediatric head trauma: influence of age and sex. I. Epidemiology.

A consecutive unselected series of 1812 children (up to 15 years old) admitted for head injuries over a period of 8.5 years was studied. The cases were divided up according to five categories of pathology: benign injury, extradural haematoma, subdural haematoma, open brain laceration and brain contusion in a broad sense.

[Computer alert and quality of care: application to the surveillance of hospital infections].

The Centre Informatique of Geneva University Hospital is developing, in the environment of its hospital information system, DIOGENE, a computerized alert system for surveillance of hospital infections. This hospital information system is based on an open distributed architecture and a relational database system, and covers many medical applications. This environment allows the development of alerts useful for detecting patients at risk.

Effects of DNA topoisomerase II inhibitors on human bone marrow progenitor cells.

Topoisomerase II (topo II) is a target for many cytotoxic agents. Two observations, however, warrant caution in their therapeutic use: first, these agents can inhibit differentiation and second, perturbations in function render the enzyme error-prone. Illegitimate recombination events occurring at sites where topo II acts in differentiation could be particularly important in the development of secondary malignancies (relatively frequent after therapy with agents that target topo II).

Chronic subdural haematomas. Results of a closed drainage method in adults.

This paper concerns 106 consecutive subdural haematomas in adults, 94 of whom were chronic and 12 subacute. Among these, 78 subdural haematomas were operated upon according to a new protocol--two burr holes, irrigation and closed drainage of the haematoma for 48 hours in the supine position. The others were treated by decompressive craniectomy according to the clinical judgement of the surgeon.

[Prevention of infections of cerebrospinal fluid shunts for hydrocephalus].

Two consecutive series of patients operated for insertion or revision of a shunt for hydrocephalus have been followed for at least 18 months. The series are comparable. The first series (84 cases) did not receive antibiotic prophylaxis, whereas the second series (59 cases) received a unique dose of intravenous Vancomycin immediately before the operation.