operating room

Definition

An operating room (OR), also called surgery center, is the unit of a hospital where surgical procedures are performed.

Purpose

An operating room may be designed and equipped to provide care to patients with a range of conditions, or it may be designed and equipped to provide specialized care to patients with specific conditions.

Description

Or Environment

Operating rooms are sterile environments; all personnel wear protective clothing called scrubs. They also wear shoe covers, masks, caps, eye shields, and other coverings to prevent the spread of germs. The operating room is brightly lit and the temperature is very cool; operating rooms are air-conditioned to help prevent infection.

The patient is brought to the operating room on a wheelchair or bed with wheels (called a gurney). The patient is transferred from the gurney to the operating table, which is narrow and has safety straps to keep him or her positioned correctly.

The monitoring equipment and anesthesia used during surgery are usually kept at the head of the bed. The anesthesiologist sits here to monitor the patient's condition during surgery.

Depending on the nature of the surgery, various forms of anesthesia or sedation are administered. The surgical site is cleansed and surrounded by a sterile drape.

The instruments used during a surgical procedure are different for external and internal treatment; the same tools are not used on the outside and inside of the body. Once internal surgery is started, the surgeon uses smaller, more delicate devices.

Operating Room Equipment

An operating room has special equipment such as respiratory and cardiac support, emergency resuscitative devices, patient monitors, and diagnostic tools.

Life Support and Emergency Resuscitative Equipment

Equipment for life support and emergency resuscitation includes the following:

• Heart-lung bypass machine, also called a cardiopulmonary bypass pump—takes over for the heart and lungs during some surgeries, especially heart or lung procedures. The heart-lung machine removes carbon dioxide from the blood and replaces it with oxygen. A tube is inserted into the aorta to carry the oxygenated blood from the bypass machine to the aorta for circulation to the body. The heart-lung machine allows the heart's beating to be stopped during surgery.
• Ventilator (also called a respirator)—assists with or controls pulmonary ventilation. Ventilators consist of a flexible breathing circuit, gas supply, heating/humidification mechanism, monitors, and alarms. They are microprocessor-controlled and programmable, and regulate the volume, pressure, and flow of respiration.
• Infusion pump—device that delivers fluids intravenously or epidurally through a catheter. Infusion pumps employ automatic, programmable pumping mechanisms to deliver continuous anesthesia, drugs, and blood infusions to the patient. The pump hangs from an intravenous pole that is located next to the patient's bed.
• Crash cart—also called resuscitation cart or code cart. A crash cart is a portable cart containing emergency resuscitation equipment for patients who are "coding" (i.e., vital signs are in a dangerous range). The emergency equipment includes a defibrillator, airway intubation devices, resuscitation bag/mask, and medication box. Crash carts are strategically located in the operating room for immediate accessibility if a patient experiences cardiorespiratory failure.
• Intra-aortic balloon pump—a device that helps reduce the heart's workload and helps blood flow to the coronary arteries for patients with unstable angina, myocardial infarction, or those awaiting organ transplants. Intra-aortic balloon pumps use a balloon placed in the patient's aorta. The balloon is on the end of a catheter that is connected to the pump's console, which displays heart rate, pressure, and electrocardiogram (ECG) readings. The patient's ECG is used to time the inflation and deflation of the balloon.

Patient Monitoring Equipment

Patient monitoring equipment includes the following:

• Acute care physiologic monitoring system—comprehensive patient monitoring systems that can be configured to continuously measure and display various parameters via electrodes and sensors connected to the patient. Parameters monitored may include the electrical activity of the heart via an ECG, respiratory (breathing) rate, blood pressure (noninvasive and invasive), body temperature, cardiac output, arterial hemoglobin oxygen saturation (blood oxygen level), mixed venous oxygenation, and end-tidal carbon dioxide.
• Pulse oximeter—monitors the arterial hemoglobin oxygen saturation (oxygen level) of the patient's blood with a sensor clipped over the finger or toe.
• Intracranial pressure monitor—measures the pressure of fluid in the brain in patients with head trauma or other conditions affecting the brain (such as tumors, edema, or hemorrhage). Intracranial pressure monitors are connected to sensors inserted into the brain through a cannula or bur hole. These devices signal elevated pressure and record or display pressure trends. Intracranial pressure monitoring may be a capability included in a physiologic monitor.

Diagnostic Equipment

The use of diagnostic equipment may be required in the operating room. Mobile x ray units are used for bedside radiography, particularly of the chest. These portable units use a battery-operated generator that powers an x ray tube. Handheld portable clinical laboratory devices, called point-of-care analyzers, are used for blood analysis at the bedside. A small amount of whole blood is required, and blood chemistry parameters can be provided much faster than if samples were sent to the central laboratory.

Other Operating Room Equipment

Disposable OR equipment includes urinary (Foley) catheters to drain urine during surgery, catheters used for arterial and central venous lines to monitor blood pressure during surgery or withdraw blood samples), Swan-Ganz catheters to measure the amount of fluid in the heart and to determine how well the heart is functioning, chest and endotracheal tubes, and monitoring electrodes.

New Surgical Techniques

Minimally invasive surgery, also called laparoscopic surgery, is an operative technique performed through a few small incisions, rather than one large incision. Through these small incisions, surgeons insert a laparoscope (viewing instrument that displays the surgery on a computer screen for easier viewing) and endoscopic instruments to perform the surgery.

Robot-assisted surgery allows surgeons to perform certain procedures through small incisions. In robotic surgery, a surgeon sits at a console several feet from the operating table and uses a joystick, similar to that used for video games, to guide the movement of robotic arms that hold endoscopic instruments and an endoscope (small camera). The robotic arms allow the surgeon to perform precise, fine hand movements, and provides access to parts of the body that are difficult to reach manually. In addition, robotic surgery provides a three-dimensional image, and the surgical field can be magnified to a greater extent than traditional or minimally invasive surgery. The goal of robotic surgery is to decrease incision size and length of hospital stay, while improving patient comfort and lessening recovery time.

Lasers are "scalpels of light" that may offer a new alternative for some surgical procedures. Lasers can be used to cut, burn, or destroy abnormal or diseased tissue; shrink or destroy lesions or tumors; sculpt tissue; and seal blood vessels. Lasers may help surgeons perform some procedures more effectively than other traditional methods. Because lasers cause minimal bleeding, the operative area may be more clearly viewed by the surgeon. Lasers may also provide access to parts of the body that may not have been as easily reached manually.

Surgery Centers

Freestanding surgery centers are available in many communities, primarily for the purpose of providing outpatient surgical procedures. The patient should make sure that the surgery center has been accredited by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO), a professionally sponsored program that stimulates a high quality of patient care in health care facilities. There is also an accreditation option that is available for ambulatory surgery centers.

Choosing a surgery center with experienced staff is important. Here are some questions to consider when choosing a surgery center:

• How many surgeries are performed annually and what are the outcomes and survival rates for those procedures?
• How does the surgery center's outcomes compare with the national average?
• Does the surgery center offer procedures to treat a particular disease?
• Does the surgery center have experience treating patients in certain age groups?
• How much does surgery cost at this facility?
• Is financial assistance available?
• If the surgery center is far from the patient's home, will accommodations be provided for caregivers?

Resources

Books

Deardoff, Ph.D., William and John Reeves, Ph.D. Preparing for Surgery: A Mind-Body Approach to Enhance Healing and Recovery. New Harbinger Publications, Oakland, CA: June 1997. (800) 748-6273. http://www.newharbinger.com/.

Furlong, Monica Winefryck. Going Under: Preparing Yourself for Anesthesia: Your Guide to Pain Control and Healing Techniques Before, During and After Surgery. Autonomy Publishing Company, November 1993.

Goldman, Maxine A. Pocket Guide to the Operating Room 2nd Edition. F.A. Davis Col, January 1996.

Periodicals

"Recommended practices for managing the patient receiving anesthesia." AORN Journal 75, no.4 (April 2002): 849.

Organizations

American Board of Surgery. 1617 John F. Kennedy Boulevard, Suite 860, Philadelphia, PA 19103. (215) 568-4000. http://www.absurgery.org/.

American College of Surgeons. 633 N. Saint Clair Street, Chicago, IL 60611-3211. (312) 202-5000. http://www.facs.org/.

American Society of Anesthesiologists. 520 N. Northwest Highway, Park Ridge, IL 60068-2573. (847) 825-5586. E-mail: mail@asahq.org. http://www.asahq.org/.

Association of Perioperative Registered Nurses (AORN, Inc.). 2170 South Parker Road. Suite 300, Denver, CO 80231. (800) 755-2676 or (303) 755-6304. http://www.aorn.org/.

National Heart, Lung and Blood Institute. Information Center. P.O. Box 30105, Bethesda, MD 20824-0105. (301) 251-2222. http://www.nhlbi.nih.gov.

National Institutes of Health. U.S. Department of Health and Human Services, 9000 Rockville Pike, Bethesda, MD 20892. (301) 496-4000. http://www.nih.gov.

Other

preSurgery.com.http://www.presurgery.com.

Reports of the Surgeon General. National Library of Medicine. http://sgreports.nlm.nih.gov/NN/.

SurgeryLinx. (surgery medical news and newsletters from top medical journals). MDLinx, Inc. 1025 Vermont Avenue, NW, Suite 810, Washington, DC 20005. (202) 543-6544. http://sgreports.nlm.nih.gov/NN/.

Surgical Procedures, Operative. (collection of links). http://www.mic.ki.se/Diseases/e4.html.

— Angela M. Costello

A room equipped for performing surgical operations.

The noun has one meaning:

Meaning #1: a room in a hospital equipped for the performance of surgical operations
  Synonyms: OR, operating theater, operating theatre, surgery

Inside a contemporary operative room

An operating theater (or theatre) was a tiered theatre or amphitheatre in which students and other spectators could watch surgeons perform surgery. Today the term is sometimes used synonymously with operating room (OR) or operating suite, the room within a hospital where surgical operations are carried out today.

Contents 1 History 2 Today 3 Surviving operating theaters 4 In popular culture 5 See also 6 References

History

Operating theaters had a raised table or chair of some sort at the center for performing operations, and were surrounded by several rows of seats (operating theaters could be cramped or spacious) so students and other spectators could observe the case in progress. The surgeons wore street clothes with an apron to protect them from blood stains, and they operated bare-handed with unsterilized instruments and supplies (gut and silk sutures were sold as open strands with reusable, hand-threaded needles^{[citation needed]}; packing gauze was made of sweepings from the floors of cotton mills^{[citation needed]}). In contrast to today's concept of surgery as a profession that emphasizes cleanliness and conscientiousness, at the beginning of the 20th century the mark of a busy and successful surgeon was the profusion of blood and fluids on his clothes.^{[citation needed]}

In 1884 German surgeon Gustav Neuber implemented a comprehensive set of restrictions to ensure sterilization and aseptic operating conditions through the use of gowns, caps, and shoe covers, all of which were cleansed in his newly-invented autoclave.^[1] In 1885 he designed and built a private hospital in the woods where the walls, floors and hands, arms and faces of staff were washed with mercuric chloride, instruments were made with flat surfaces and the shelving was easy-to-clean glass. Neuber also introduced separate operating theatres for infected and uninfected patients and the use of heated and filtered the air in the theatre to eliminate germs.^[2] In 1890 surgical gloves were introduced to the practice of medicine by William Halsted.^[3] Antiseptic surgery was pioneered in the United States by Charles McBurney.^[4]

Today

This section does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2009)

Contemporary operative rooms are devoid of a theater setting. Rooms are spacious, easy to clean, well lit with typically overhead surgical lights, and may have viewing screens and monitors. Rooms have no windows and a controlled temperature - humidity environment. Special air handlers filter the air and keep rooms slightly pressurized in relation to the outside. Electricity support has backup systems in case of a black-out. Rooms are supplied with wall suction, oxygen, and possibly other anesthesia gases. Key equipment consists of the operating table and the anesthesia cart. In addition, there are tables to set up instruments. There is storage space for common surgical supplies. There are containers for disposables. Outside the operative room is a dedicated scrubbing area that is used by surgeon and nurses prior to surgery.

Several operative rooms are part of the operative suite that forms a distinct section within a health care facility. Beside the operative rooms and their wash rooms, it contains rooms for personnel to change, wash, and rest, preparation and recovery rooms(s), storage and cleaning facilities, offices, dedicated corridors, and possibly other supportive units. In larger facilities the operative suite is climate- and air-controlled and separated from the remainder so that only authorized personnel has access.

Surviving operating theaters

While operating theaters are no longer used for surgery, some still exist. One of the oldest surviving operating theaters is the Old Operating Theatre in London. Built in 1822, it is now a museum of surgical history. But that still exist, the oldest permanent anatomy theater was the University of Padova in Italy, commissioned by the anatomist Girolamo Fabrizio d'Acquapendente in 1594, inside the Palazzo Bo.

Another famous operating theater is the Ether Dome in Boston. Built in 1824, it is now a conference room and tourist attraction.

In popular culture

• In Lemony Snicket's The Hostile Hospital, Count Olaf disguises his henchmen as doctors and tries to perform a "cranioectomy" (decapitation) on Violet Baudelaire for a live audience in an operating theater.
• In the Seinfeld episode The Junior Mint, Kramer accidentally drops a Junior Mint into the body of the patient, Elaine's boyfriend Roy, who is having a splenectomy. Miraculously, his condition improves and the doctor declares that it came from "something above that day".

See also

• Anatomical theatre
• Patient identifier

References

1. ^ Deysine, M (2003). Hernia infections: pathophysiology, diagnosis, treatment, prevention. Informa Health Care. pp. 13. ISBN 0824746120. 
2. ^ Bishop, WJ (1995). The Early history of surgery. Barnes & Noble. pp. 169. ISBN 1566197988. 
3. ^ Porter, R (2001). The Cambridge illustrated history of medicine. Cambridge University Press. pp. 376. ISBN 0521002524. 
4. ^ Gross, E (1990). This day in American history. Verlag für die Deutsche Wirtschaft. pp. 61. ISBN 1555700462. 

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