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Acute Abdomen in the Modern Era

Author/s: 
Selwyn O Rogers Jr, Orlando C Kirton

Acute abdominal pain is one of the most common symptoms in patients presenting to the emergency department and accounts for 5 to 10% of all emergency department visits. Pathophysiological conditions that lead to surgical interventions in such patients are mainly gastrointestinal obstruction, hemorrhage, ischemia, and viscus perforation. Acute abdominal pain can be diffuse or localized (i.e., quadrant-based epigastric pain or pain in the right upper quadrant, left upper quadrant, right lower quadrant, or left lower quadrant)2,4,6 and is associated with but not limited to the following disease processes: perforated viscus, peptic ulcer disease, mesenteric ischemia, acute cholecystitis, appendicitis, diverticulitis, pancreatitis, and intraabdominal hemorrhage. The need for emergency general surgery is an independent risk factor for postoperative complications and death, indicating the severity of the condition. Therefore, timely diagnosis of acute abdominal emergencies is essential. From antiquity to modern times, medical students have been taught that the history and the physical examination are the central components in the evaluation of acute abdominal pain.

Keywords 
Abdomen acute abdomen diagnosis abdominal pain

In-Flight Medical Emergencies: A Review

Author/s: 
Martin-Gill, Christian, Doyle, Thomas J., Yealy, Donald M.

IMPORTANCE:

In-flight medical emergencies (IMEs) are common and occur in a complex environment with limited medical resources. Health care personnel are often asked to assist affected passengers and the flight team, and many have limited experience in this environment.

OBSERVATIONS:

In-flight medical emergencies are estimated to occur in approximately 1 per 604 flights, or 24 to 130 IMEs per 1 million passengers. These events happen in a unique environment, with airplane cabin pressurization equivalent to an altitude of 5000 to 8000 ft during flight, exposing patients to a low partial pressure of oxygen and low humidity. Minimum requirements for emergency medical kit equipment in the United States include an automated external defibrillator; equipment to obtain a basic assessment, hemorrhage control, and initiation of an intravenous line; and medications to treat basic conditions. Other countries have different minimum medical kit standards, and individual airlines have expanded the contents of their medical kit. The most common IMEs involve syncope or near-syncope (32.7%) and gastrointestinal (14.8%), respiratory (10.1%), and cardiovascular (7.0%) symptoms. Diversion of the aircraft from landing at the scheduled destination to a different airport because of a medical emergency occurs in an estimated 4.4% (95% CI, 4.3%-4.6%) of IMEs. Protections for medical volunteers who respond to IMEs in the United States include a Good Samaritan provision of the Aviation Medical Assistance Act and components of the Montreal Convention, although the duty to respond and legal protections vary across countries. Medical volunteers should identify their background and skills, perform an assessment, and report findings to ground-based medical support personnel through the flight crew. Ground-based recommendations ultimately guide interventions on board.

CONCLUSIONS AND RELEVANCE:

In-flight medical emergencies most commonly involve near-syncope and gastrointestinal, respiratory, and cardiovascular symptoms. Health care professionals can assist during these emergencies as part of a collaborative team involving the flight crew and ground-based physicians.

Keywords 
emergencies aviation emergency flight airport aircraft
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