الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
OHSS is a medical complication that is both completely iatrogenic unique treatment of infertility. Although the pathophysiology of OHSS is not well understood, the signs and symptoms of this disease can be attributed to local and systemic increase in capillary permeability. These changes in turn result in depleation of intravascular volume at the expense of third-space fluid accumulation.OHSS has a various spectrum of clinical presentation. An attempt to better understand this heterogeneity led to the development of staging system for OHSS that would reflect symptom severity. This classification categorizes patients into mild abdominal distention, nausea, vomiting and ovarian enlargement.Moderate disease is marked by the presence of abdominal ascites on ultrasound examination. Severe disease is diagnosed when there are clinical signs of tense ascites, hydrothorax, shortness of breath, hemoconcentration, hypercoagulability, or any complications of OHSS such as renal failure, thromboembolism, or acute respiratory distress syndrome (ARDS).