Anesthesia

Anesthesia, or anaesthesia (see spelling differences; from Greekαν-, an-, "without"; andαἴσθησις, aisthēsis, "sensation"), traditionally meant the condition of having sensation (including the feeling of pain) blocked or temporarily taken away. It is a pharmacologically induced and reversible state of amnesia, analgesia, loss of responsiveness, loss of skeletal muscle reflexes or decreased stress response, or all simultaneously. This allows patients to undergo surgery and other procedures without the distress and pain they would otherwise experience. An alternative definition is a "reversible lack of awareness," including a total lack of awareness (e.g. a general anesthetic) or a lack of awareness of a part of the body such as a spinal anesthetic. The word anesthesia was coined by Oliver Wendell Holmes, Sr. in 1846.

Types of anesthesia include local anesthesia, regional anesthesia, general anesthesia, and dissociative anesthesia. Local anesthesia inhibits sensory perception within a specific location on the body, such as a tooth or the urinary bladder. Regional anesthesia renders a larger area of the body insensate by blocking transmission of nerve impulses between a part of the body and the spinal cord. Two frequently used types of regional anesthesia are spinal anesthesia and epidural anesthesia. General anesthesia refers to inhibition of sensory, motor and sympathetic nerve transmission at the level of the brain, resulting in unconsciousness and lack of sensation. Dissociative anesthesia uses agents that inhibit transmission of nerve impulses between higher centers of the brain (such as the cerebral cortex) and the lower centers, such as those found within the limbic system.

Foot and ankle surgery

Foot and ankle surgery is a sub-specialty of orthopedics and podiatry that deals with the treatment, diagnosis and prevention of disorders of the foot and ankle. The typical training of an orthopedic foot and ankle surgeon consist of four years of college, four years of medical school, one year surgical internship, 5–6 years of orthopedic training and a 1 year fellowship in foot and ankle surgery. Training for a podiatric foot and ankle surgeon consists of four years of college, four years of podiatric medical school and 2-4 years of a surgical residency. One can also make the distinction between a podiatric and orthopedic foot and ankle surgeon: an orthopedic surgeon has an allopathic medical degree and training that encompasses both orthopedic residency and a 6-month to one year of fellowship training specific in techniques of foot and ankle surgery, while the training of a podiatrist consist of a 4 year podiatric medical degree and mandatory two to four year residency training specific to foot and ankle medicine and surgery, with a possibility of an additional 1 year fellowship.

Clinical scope

Foot and ankle surgeons are trained to treat all disorders of the foot and ankle, both surgical and non-surgical. One is also trained to understand the rather complex connections between disorders and deformalities of the foot and ankle and the knee and hip and in return, the spine. Therefore, the surgeon will typically see cases that vary from trauma (such as malleolar fractures, tibial pilon fractures, calcaneus fractures, navicular and midfoot injuries and metatarsal and phalangeal fractures.) Arthritis care (primarily surgical) of the ankle joint and the joints of the hindfoot (tarsals), midfoot (metatarsals) and forefoot (phalanges)also plays a rather significant role. Congentital and acquired deformalities include adult acquired flatfoot, non-neuromuscular foot deformity, diabetic foot disorders, hallux valgus and several common pediatric foot and ankle conditions ( such as clubfoot, flat feet, tarsal coalitions...etc.) Patients may also be referred to a foot and ankle surgeon for proper diagnosis and treatment of heel pain (such as a consequence from plantar heel facitis), nerve disorders (such as tarsal tunnel syndrome) and tumors of the foot and ankle. Amputation and ankle arthroscopy (the use of a laproscope in foot and ankle surgical procedures) have emerged as prominent tools in foot and ankle care. A patient may also be referred to a foot and ankle surgeon for the surgical care of nail problems and phalangeal deformalities (such as bunions and buniettes.)

Non-surgical treatments

The vast majority of foot and ankle conditions do not require surgical intervention. For example, several phalangeal conditions may be traced to the type of foot box used in a shoe, and a change of a shoe or shoe box may be sufficient to treat the condition. For flammatory processes such as rhuematoid arthritis, non-steroidal anti-inflammatories (NSAIDs) and Disease Modifying antirheumatic drugs (DMARDS) may be used to manage or slow down the process. Orthotics, or an externally applied devie used to modify the structural or functional characteristics of the neuromusculoskeletal system specifically for the foot and ankle may be used as inserts into shoes to displace regions of the foot for more balanced, comfortable or theraputic placements of the foot. Physical therapy may also be used to alleviate symptoms, strengthening muscles such as the gastrocnemius (which in return will pull on the achillies heel which will then pull on the plantar fascia thus changing the structure and shape of the foot).

Surgical treatments

Surgery is considered to be a last option when more conservative fails to alleviate symptoms (such as the above techniques outlined in the section above.) Such as bunionectomies may be used to surgically remove bunions and other foot and ankle deformalities, arthrodesis (or fusion of joint spaces) for inflammatory processes, and surgical reconstruction (i.e. invasive measures of manipulating neuromusculoskeletal structures) to treat other deformalities. One should note that orthotics, physical therapy, NSAIDs, DMARDs and a change of shoe will act in compliments to surgical intervention, and in most cases will be required for optimal recovery.

Open heart surgery

This is a surgery in which the patient's heart is opened and surgery is performed on the internal structures of the heart.

It was soon discovered by Dr. Wilfred G. Bigelow of the University of Toronto that the repair of intracardiac pathologies was better done with a bloodless and motionless environment, which means that the heart should be stopped and drained of blood. The first successful intracardiac correction of a congenital heart defect using hypothermia was performed by Dr. C. Walton Lillehei and Dr. F. John Lewis at the University of Minnesota on September 2, 1952. The following year, Soviet surgeon Aleksandr Aleksandrovich Vishnevskiy conducted the first cardiac surgery under local anesthesia.

Surgeons realized the limitations of hypothermia - complex intracardiac repairs take more time and the patient needs blood flow to the body (and particularly the brain); the patient needs the function of the heart and lungs provided by an artificial method, hence the term cardiopulmonary bypass. Dr. John Heysham Gibbon at Jefferson Medical School in Philadelphia reported in 1953 the first successful use of extracorporeal circulation by means of an oxygenator, but he abandoned the method, disappointed by subsequent failures. In 1954 Dr. Lillehei realized a successful series of operations with the controlled cross-circulation technique in which the patient's mother or father was used as a 'heart-lung machine'. Dr. John W. Kirklin at the Mayo Clinic in Rochester, Minnesota started using a Gibbon type pump-oxygenator in a series of successful operations, and was soon followed by surgeons in various parts of the world.

Dr. Nazih Zuhdi worked for four years under Drs. Clarence Dennis, Karl Karlson, and Charles Fries, who built an early pump-oxygenator. Zuhdi and Fries worked on several designs and re-designs of Dennis' earlier model from 1952–1956 at the Brooklyn Center. Zuhdi then went to work with Dr. C. Walton Lillehei at the University of Minnesota. Lillehei had designed his own version of a cross-circulation machine, which came to become known as the DeWall-Lillehei heart-lung machine. Zuhdi worked on perfusion and blood flow trying to solve the problem of air bubbles while bypassing the heart so the heart could be stopped for the operation. Zuhdi moved to Oklahoma City, OK, in 1957, and began working at the Oklahoma University College. Zuhdi, the heart surgeon, teamed up with Dr. Allen Greer, a lung surgeon and Dr. John Carey, forming a three man open heart surgery team. With the advent of Dr. Zuhdi's heart-lung machine which was modified in size, being much smaller than the DeWall-Lillehei heart-lung machine, and with other modifications, reduced the need for blood down to a minimal amount, and the cost of the equipment down to $500.00 and also reduced the prep time from two hours to 20 minutes. Dr. Zuhdi performed the first Total Intentional Hemodilution open heart surgery on Terry Gene Nix, age 7, on February 25, 1960, at Mercy Hospital, Oklahoma City, OK. The operation was a success; however, Nix died three years later in 1963. In March, 1961, Zuhdi, Carey, and Greer, performed open heart surgery on a child, age 3½, using the Total Intentional Hemodilution machine, with success. That patient is still alive.

In 1985 Dr. Zuhdi performed Oklahoma's first successful heart transplant on Nancy Rogers at Baptist Hospital. The transplant was successful, but Rogers, a cancer sufferer, died from an infection 54 days after surgery.

Etymology

Coined in English 1819, the word dermatology originated in the form of the words dermologie (in French, 1764) and, a little later, dermatologia (in Latin, 1777). The term derives from the Greek "δέρματος" (dermatos), genitive of "δέρμα" (derma), "skin" (from "δέρω" - dero, "to flay") + "-logy, "the study of", a suffix derived from "λόγος" (logos), amongst others meaning "speech, oration, discourse, quote, study, calculation, reason", in turn from "λέγω" - lego, "to say", "to speak".

History

Readily visible alterations of the skin surface have been recognized since the dawn of history, with some being treated, and some not. In 1801 the first great school of dermatology became a reality at the famous Hôpital Saint-Louis in Paris, while the first textbooks (Willan's, 1798–1808) and atlases (Alibert's, 1806–1814) appeared in print during the same period of time. In 1952, Dermatology was greatly advanced by Dr. Norman Orentreich's pioneering work in hair transplantation.

Training

After earning a medical degree (M.D. or D.O.), the length of training for a general dermatologist in the United States is a total of four years. This training consists of an initial medical or surgical intern year followed by a three-year dermatology residency. Following this training, one- or two- year post-residency fellowships are available in immunodermatology, phototherapy, laser medicine, Mohs micrographic surgery, cosmetic surgery or dermatopathology. Within the past several years, dermatology residencies in the United States have been the most competitive in terms of admission

American College of Surgeons

Members of the American College of Surgeons are referred to as "Fellows." The letters FACS (Fellow, American College of Surgeons) after a surgeon's name mean that the surgeon's education and training, professional qualifications, surgical competence, and ethical conduct have passed a rigorous evaluation, and have been found to be consistent with the high standards established and demanded by the College.

The American College of Surgeons also has membership categories for Associate Fellows (provides an opportunity for surgeons who are beginning surgical practice and who meet specific requirements to assume an active role in the College at an early stage in their careers), surgical residents, medical students, and allied health care professionals who are not surgeons, but who interact with surgical patients.

As of 2008, total membership was over 75,000 including more than 4,000 members from outside the US and Canada, and more than 2,600 Associate Fellows. Fellows of the College are organized into 100 chapters. There are 65 chapters in the United States, 2 in Canada, 3 in Mexico, and 30 in other countries around the world.

The ACS elected its first black Fellow, Dr Louis T. Wright, in 1934.