Current opinion in general surgery
-
Pharyngoesophageal dysphagia is chiefly a disorder of the elderly. This review examines recent advances in the understanding of the normal physiology of oropharyngeal bolus transport. ⋯ Therapy for the condition is aimed at the underlying cause, and patients with neurologic deficits (largest subgroup of patients) should have a good response to myotomy provided they fulfill basic criteria. Surgery for Zenker's diverticulum is always necessary, and a short discussion of technique has been included.
-
This review of early care covers issues pertaining to the analysis of system function, prehospital intravascular volume replacement, diagnosis of proximity vascular injury, the role of emergency thoracotomy, and the value of transesophageal echocardiography. The first six articles deal with various aspects of system function, from triage to analysis of outcome. The next series of articles reviews work in progress evaluating optimal fluid for resuscitation. ⋯ An article and two editorials summarize state of the art for diagnosis and treatment of proximity vascular injury. Two articles describe the potential use of the new technique of transesophageal echocardiography. This new modality has not formed a solid indication at present and can be considered investigational in trauma care.
-
That the gastrointestinal tract performs important immunologic, metabolic, and barrier functions, in addition to nutrient digestion and absorption, has recently become clear, as have the potential deleterious consequences of loss of mucosal barrier function. Because of the potentially important relationship between nutrition and gut barrier function, this area has received increasing clinical and experimental attention over the past several years. Consequently, this review focuses on how nutrition can modulate the integrity of the gut mucosal barrier. Special attention will be given to the biology of normal intestinal barrier function, as well as to studies investigating the role of nutritionally related variables on the gut mucosal barrier.
-
Trauma is a major health and social problem. It is the leading cause of death for those under age 45, and is a major expense to society, in terms of direct medical expense and lost wages. Visceral injury continues to be a major cause of morbidity and mortality in the overall trauma picture. This article reviews the significant developments in the diagnosis and management in specific areas of visceral injury.
-
Multiple organ failure remains a leading cause of death in surgical intensive care units. This review of multiple organ failure focuses on recent (1990 to 1992) laboratory and clinical advances related to diagnosis, prognosis, and therapy of multiple organ failure and is divided into three parts. ⋯ The three hypotheses focus on the gut, molecular mediators, and the microvasculature. Third, it synthesizes those three mechanisms into a single paradigm; this unifying paradigm can serve as a framework in which to interpret subsequent laboratory and clinical advances.