risk

(redirected from surgical risk)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.

Risk

Often defined as the standard deviation of the return on total investment. Degree of uncertainty of return on an asset. In context of asset pricing theory. See: Systematic risk.

Risk

The uncertainty associated with any investment. That is, risk is the possibility that the actual return on an investment will be different from its expected return. A vitally important concept in finance is the idea that an investment that carries a higher risk has the potential of a higher return. For example, a zero-risk investment, such as a U.S. Treasury security, has a low rate of return, while a stock in a start-up has the potential to make an investor very wealthy, but also the potential to lose one's entire investment. Certain types of risk are easier to quantify than others. To the extent that risk is quantifiable, it is generally calculated as the standard deviation on an investment's average return.

risk

The variability of returns from an investment. The greater the variability (in dividend fluctuation or security price, for example), the greater the risk. Because investors are generally averse to risk, investments with greater inherent risk must promise higher expected yields.

Risk.

Risk is the possibility you'll lose money if an investment you make provides a disappointing return. All investments carry a certain level of risk, since investment return is not guaranteed.

According to modern investment theory, the greater the risk you take in making an investment, the greater your return has the potential to be if the investment succeeds.

For example, investing in a startup company carries substantial risk, since there is no guarantee that it will be profitable. But if it is, you're in a position to realize a greater gain than if you had invested a similar amount in an already established company.

As a rule of thumb, if you are unwilling to take at least some investment risk, you are likely to limit your investment return.

risk

see UNCERTAINTY AND RISK.

risk

Uncertainty regarding the possibility of loss.

References in periodicals archive ?
Within each chapter, each indication was characterized by angiographic assessment of the percent stenosis of the operated artery and the contralateral artery, the presence of large or small ulcerated lesions, the side of the symptoms (when present) compared with the operated artery, and the surgical risk based on in-hospital mortality and stroke.
When valve surgery cannot be performed, for high surgical risk, authors suggest performing colectomy after identification of the bleeding site as an initial treatment option, knowing that recurrence of bleeding could occur at another site (6).
Patients with HIV/AIDS are perceived to be associated with poor surgical risk for several reasons:
LAS VEGAS -- For women with high anesthetic and surgical risks because of serious underlying comorbidities, global endometrial ablation can provide effective and minimally invasive therapy for monorrhagia, results from a long-term study demonstrated.
Situations in which it would be appropriate for dermatologists to consider turning to imiquimod for the treatment of patients with lentigo maligna include large lesions, advanced patient age, ill-defined lesional margins, a cosmetically precarious anatomic location, and comorbid systemic illness that increases surgical risk, Dr.
Use of IONM facilitates the surgical process and can reduce surgical risk by providing alerts to surgeons of potential harm to the spinal cord or neural structures.
Whereas aging patients are indeed at increased surgical risk, their exclusion from large trials of endarterectomy and stenting--which was pointed out as an indication of their risk--was not due to any surgical risk factors but to the fact that the patients weren't expected to live long enough to provide adequate follow-up for a quality randomized trial.
Concern that the Burch procedure might increase the risk of urge incontinence or other urinary symptoms, or that it might create an unnecessary surgical risk in those patients who would not have developed postsacrocolpopexy stress incontinence, appears unfounded.
But we believe women should not be discouraged from carotid endarterectomy solely on the basis of surgical risk," Dr.
To be eligible for the trial, patients must be at least 65 years old, exhibit symptoms of severe AS and be determined by a heart team to have a surgical risk score of less than 4 % per the Society of Thoracic Surgeons adult cardiac surgery risk calculator.
Some surgeons are hesitant to pursue cytoreductive surgery in these kinds of patients as aggressively as they might in patients with fewer surgical risk factors because of previous data showing poorer survival rates in older women.
Use of IONM facilitates the surgical process and can reduce surgical risk by providing alerts to surgeons to prevent potential harm to the spinal cord or neural structures.