We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Abdominal pain is the most common reason for emergency department visits and is a leading cause of hospital admissions in the United States. Acute abdominal pain is defined as sudden-onset pain lasting < 7 days, due to a wide spectrum of causes that range from benign to life threatening. When the need for surgical intervention is suspected, prompt involvement of appropriate consultants is essential.
Abdominal compartment syndrome is a surgical emergency and requires aggressive treatment by a multidisciplinary team including critical care experts and surgeons. Abdominal compartment syndrome (ACS) is defined as increased pressure within the abdominal cavity ≥ 20 mmHg associated with new organ dysfunction or failure.
This chapter discusses the diagnosis, evaluation and management of hypertensive emergencies. It describes special considerations for aortic dissection, acute ischemic stroke, acute intracerebral hemorrhage (ICH), and preeclampsia and eclampsia. The critical management of hypertensive emergencies depends on the presence of end-organ damage. Only patients with a diagnosis of hypertensive emergency require immediate interventions in the emergency department for lowering blood pressure. Patients with chronically elevated blood pressure may suffer detrimental consequences if their blood pressure is lowered too quickly. Dramatic and rapid decreases in blood pressure can result in critical hypoperfusion of the brain, heart, and kidneys, resulting in ischemia or infarction. Patients with hypertensive urgency can be managed as outpatients as long as reliable follow-up can be arranged. They are usually started on oral antihypertensives with a goal of lowering their blood pressure to less than 160/100 mmHg over 12-48 hours.
This chapter discusses the diagnosis, evaluation and management of valvular diseases including aortic stenosis (AS), aortic regurgitation (AR), mitral stenosis (MS) and mitral regurgitation (MR). Patients with AS are particularly sensitive to changes in cardiac output due to the pressure gradient across the aortic valve. Evaluation of any valvular pathology begins with the history and physical examination, and paying attention to whether valvular defect has been previously noted. If a new acute AR is discovered, the diagnosis of aortic dissection should be ruled out with a CTA or a transthoracic or transesophageal echocardiogram. Blood culture and antibiotics may be indicated if endocarditis or a perivalvular abscess is suspected. Characterization of valve dysfunction in the emergency department is not imperative if patients are hemodynamically stable. Echocardiography should be considered in patients who are hemodynamically unstable. Acute valvular dysfunction is usually secondary to a precipitating critical problem.