absentPeripheralPulseIndicates whether the patient has been diagnosed on the physical examination to have absent femoral, popliteal, or pedal pulses. If he or she has had a previous amputation, record pulses as present or absent in the remaining limb. Possible values include: Yes; No; No study. [FileMan 130,331]
alcoholUseIndicates whether the patient admits to having greater than two drinks (two ounces of hard liquor or two 12 oz. cans of beer or two 6 oz. glasses of wine) per day within the two weeks prior to admission. If the patient is a "binge drinker" divide out the numbers of drinks during the binge by seven days, and then apply the definition. Possible values include: Yes; No; No study. [FileMan 130,246]
anginaSeverityIndicates whether the patient has angina, defined as pain or discomfort between the diaphragm and mandible resulting from myocardial ischemia, usually precipitated by exertion or emotion and relieved by rest or nitroglycerin. The Canadian Cardiovascular Society (CCS) classification is used to record the most severe angina in the 30 days prior to surgery:* None: No angina* Class I: Ordinary physical activity, such as walking or climbing stairs does not cause angina. Angina may occur with strenuous or rapid or prolonged exertion at work or recreation.* Class II: There is slight limitation of ordinary activity. Angina may occur with walking or climbing stairs rapidly, walking uphill, walking or stair climbing after meals or in the cold, in the wind, or under emotional stress, or walking more than two blocks on the level, or climbing more than one flight of stairs under normal conditions at a normal pace.* Class III: There is marked limitation of ordinary physical activity. Angina may occur after walking one or two blocks on the level or climbing one flight of stairs under normal conditions at a normal pace.* Class IV: There is inability to carry on any physical activitywithout discomfort. Angina may be present at rest.* Unknown: Unknown[FileMan 130,267]
aorticSystolicPressureIndicates the patient's aortic systolic pressure measured prior to left ventricular angiography at the catheterization most recent prior to surgery. This should be a number (in millimeters of mercury) but is a string to accomodate No Study or Unknown. [FileMan 130,358]
cardiomegalyIndicates whether the patient has generalized cardiac enlargement of any or all of the cardiac chambers by standard or portable chest x-ray within 30 days preceding surgery. [FileMan 130,209]
circumflexCoronaryArteryStenosisIndicates the most severe percent stenosis in the circumflex coronary artery, including marginal branches and ramus intermedius considered to be of adequate size for bypass grafting. The true circumflex lies in the groove separating the left atrium from the left ventricle (A-V groove) for a variable distance following its origination from the left main coronary artery. Typically, it gives-off one or more branches that leave the A-V groove to supply the posterior-lateral free wall of the left ventricle. These are known as marginal branches. A few patients have a branch to the posterior-lateral free wall of the left ventricle arising exactly at the bifurcation of the left main coronary artery into the left anterior descending coronary artery and the circumflex coronary artery. Strictly speaking, this vessel is neither a diagonal branch of the left anterior descending coronary artery nor a marginal branch of the circumflex coronary artery. This is often called the "ramus intermedius" or "trifurcation branch". This should be a number between 0 and 100, zero meaning no obstruction of the coronary arteries, but is a string to accomodate No Study or Unknown. [FileMan 130,362.3]
comaIndicates whether the patient is unconscious, postures to painful stimuli, or is unresponsive to all stimuli entering surgery. This does not include drug-induced coma. Possible values include: Yes; No; No study. [FileMan 130,333]
comaPostOpIndicates if either postoperatively or within 30 days of surgery there was a significantly decreased level of consciousness (exclude transient disorientation or psychosis) for greater than or equal to 24 hours as evidenced by lack of response to deep, painful stimuli. Do not include drug-induced coma (e.g. Propofol drips, etc.). Possible values include: Yes; No; No study. [FileMan 130,410]
convertToBypassNeededIndicates whether patient was converted from off cardiopulmonary bypass assistance to on cardiopulmonary bypass during the cardiac surgical procedure. [FileMan 130,469]. Possible values include:* No: there was no conversion that occurred for the off-pump case performed (i.e., the off-pump case remained off-pump throughout the operation) * Yes, planned: the procedure was begun as an off-pump procedure but changed to on-pump for any length of time - the change was planned due to decision made prior to operation to perform some vessels off-pump and some on-pump in order to minimize total CPB time* Yes, unplanned: the procedure was begun as an off-pump procedure but changed to on-pump for any length of time - the change was unplanned and determined in the operating room due to inability to safely perform revascularization)* Yes, unknown if planned* N/A: the procedure was NOT an off-pump case (i.e., procedure began on-pump and remained on- pump throughout the case)* No Study or Unknown - the documentation is not sufficient to answer
coronariesWithStenosisCategorizes the number of major coronaries with stenosis greater than or equal to 50%. Possible values include:0 (no stenosis in any coronary artery greater than or equal to 50%, excluding diagonals);1 (one or more stenoses greater than or equal to 50% in the left anterior descending (does not include diagonals) or, circumflex (circumflex includes the marginal branches and ramus intermedius), or the right (right includes the posterior descending even if a branch of the circumflex));2 (stenoses greater than or equal to 50% in the left main coronary artery, or the left anterior descending (does not include diagonals) and the right (right includes the posterior descending even if a branch of the circumflex), or the left anterior descending (does not include diagonals) and circumflex (circumflex includes the marginals and ramus intermedius), or the circumflex (circumflex includes the marginals and ramus intermedius) and the right (right includes the posterior descending even if a branch of the circumflex));3 (stenoses greater than or equal to 50% in the left anterior descending (does not include diagonals) and the circumflex (circumflex includes the marginals and ramus intermedius) and right (right includes the posterior descending even if a branch of the circumflex) or left main and right (right includes the posterior descending even if a branch of the circumflex)).[FileMan 130,362]
dateTimeExtubatedThe date that the endotracheal tube is pulled for the first time after surgery. If a tracheostomy is performed to replace an oral intubation tube, intubation is considered continuous so the patient has not been extubated as long as the patient continues to require ventilator support. If the patient dies while intubated, indicate the date of death for this data element. [FileMan 130,470]
deepIncisionalSSIIndicates whether the patient had a deep incisional Surgical Site Infection (SSI). Deep Incisional SSI is an infection that occurs within 30 days after the operation and the infection appears to be related to the operation and infection involved deep soft tissues (e.g., fascial and muscle layers) of the incision and at least one of the following:* Purulent drainage from the deep incision but not from the organ/space component of the surgical site.* A deep incision spontaneously dehisces or is deliberately opened by a surgeon when the patient has at least one of the following signs or symptoms: fever (greater than 38 C), localized pain, or tenderness, unless site is culture-negative.* An abscess or other evidence of infection involving the deep incision is found on direct examination, during reoperation, or by histopathologic or radiologic examination.* Diagnosis of a deep incision SSI by a surgeon or attending physician.Possible values include: Yes; No; No study. [FileMan 130,249]
disseminatedCancerIndicates whether the patient had cancer known to be present prior to the start of surgery that: (1) Has spread to one or more sites in addition to the primary site AND (2) In whom the presence of multiple metastases indicates the cancer is widespread, fulminant, or near terminal. Other terms describing disseminated cancer include "diffuse," "widely metastatic," "widespread," or "carcinomatosis", or AJCC "Stage IV" cancer. Possible values include: Yes; No; No study. [FileMan 130,338]
diureticUseIndicates whether the patient has used any diuretic preparation within the two weeks prior to surgery. Possible values include: Yes; No. [FileMan 130,353]
doNotResuscitateStatusIndicates whether the patient had a Do-Not-Resuscitate (DNR) order written in the physician's order sheet of the patient's chart and it has been signed or co-signed by an attending physician or if the DNR order was rescinded immediately prior to surgery in order to operate on the patient. If DNR discussions are documented in the progress note, but no official DNR order has been written in the physician order sheet or if the attending physician has not signed the official order, this property would be No. Possible values include: Yes; No; No study. [FileMan 130,238]
dyspneaIndicates whether the patient described difficult, painful, or labored breathing at the time the patient was being considered as a candidate for surgery (which should be no longer than 30 days prior to surgery). Dyspnea may be symptomatic of numerous disorders that interfere with adequate ventilation or perfusion of the blood with oxygen. The dyspneic patient is subjectively aware of difficulty with breathing. If the patient's dyspnea status worsened prior to surgery, the most severe status is used. Possible values include: No dyspnea; Dyspnea upon moderate exertion (e.g., is unable to climb one flight of stairs without shortness of breath); Dyspnea at rest (e.g., cannot complete a sentence without needing to take a breath); No study. [FileMan 130,325]
estimateOfMortalityThe physician's (cardiologist or cardiac surgeon) subjective estimate of operative mortality based on the assessment of the total clinical picture. (To avoid bias introduced by knowledge of outcome, this must be completed preoperatively. [FileMan 130,364]
estimateOfMortalityDateThe date and time that the estimate of mortality information was collected. [FileMan 130,364.1]
forcedExpiratoryVolumeThe forced expiratory volume (in liters) in one second from the most recent pulmonary function test prior to surgery. Identify only a FEV1 value that is pre-bronochodilator treatment. This should be a number from 0 to 9.9, or No Study if there has been no pulmonary function tests in the preceding year. [FileMan 130,367]
functionalHealthStatusCategorizes the patient's abilities to perform Activities of Daily Living (ADLs) in the 30 days prior to surgery. ADLs are defined as the activities usually performed in the course of a normal day in a person's life. ADLs include: bathing, feeding, dressing, toileting, and mobility. Report the corresponding level of self-care for ADLs demonstrated by this patient at the time the patient is being considered as a candidate for surgery (which should be no longer than 30 days prior to surgery). Possible values include: Independent; Partially dependent; Totally dependent; Unknown. [FileMan 130,240]
hepatomegalyIndicates whether the patient has the presence of hepatomegaly. Hepatomegaly is defined as enlargement of the liver indicated usually by palpation of the lower border of the liver below the right costal margin or a liver span greater than 10 cm. Hepatomegaly may be noted in acute hepatitis, fatty infiltration, passive congestion, and early biliary obstruction. Possible values include: Yes; No; No study. [FileMan 130,268]
ileusOrBBowelObstructionIndicates whether the patient has prolonged ileus or bowel obstruction. Ileus is obstruction of the intestines from a variety of causes including mechanical obstruction, peritonitis, adhesions, or post surgically as a result of functional dysmotility by the bowel. Bowel obstruction is any hindrance to the passage of the intestinal contents. Prolonged ileus or obstruction is defined as persisting longer than 5 days postoperatively. Possible values include: Yes; No; No study. [FileMan 130,345]
impairedSensoriumIndicates whether the patient is acutely confused and/or delirious and responds to verbal and/or mild tactile stimulation. Patients should be noted to have developed an impaired sensorium if they have mental status changes, and/or delirium in the context of the current illness. Patients with chronic or long-standing mental status changes secondary to chronic mental illness (e.g., schizophrenia) or chronic dementing illnesses (e.g., multi-infarct dementia, senile dementia of the Alzheimer's type) should not be included. Answer Yes if the criteria for this definition applies at any time within 48 hours preop. If the patient develops impaired sensorium, then progresses to a coma, and remains in a coma entering surgery, report just coma. Possible values include: Yes; No; No study. [FileMan 130,332]
incisionTypeCategorizes the incision used for cardiac access, according to the operative report. (Do not include incisions for port access.) [FileMan 130,468]. Possible values include:* Full Sternotomy: the incision cuts through the entire length of the sternum;* Full Thoracotomy: a larger surgical incision running across the chest wall, but not along the sternum. This may be a left submammary incision, which requires the resection of the fourth costal cartilage and/or deflation of the left lung;* Limited Parasternal Approach: the incision cuts beside a small portion (less than 0.5 of the length) of the sternum, on a line midway between the sternal margin and an imaginary line passing through the nipple;* Limited Sternotomy: the incision cuts through a small portion (less than half of the length) of the sternum;* Limited Thoracotomy: a small surgical incision through a portion of the chest wall, but not along the sternum. For example, an anterolateral thoracotomy approach may be used in LIMA to LAD grafting.;* Other Limited Surg Approach: an incision or incision set used to visualize the operating field that is not listed above;* No Study/Unknown;
intraAorticBalloonPumpUseIndicates whether there was any use of an intra-aortic balloon pump (IABP) within the two weeks prior to surgery. Possible values include: Yes; No. [FileMan 130,356]
ladcaStenosisIndicates the most severe percent stenosis in the left anterior descending coronary artery. Synonyms for this artery include: LAD, AD, and anterior descending (but does not include the diagonals). This should be a number between 0 and 100, zero meaning no obstruction of the LAD, but is a string to accomodate No Study or Unknown. [FileMan 130,362.1]
leftMainStenosisIndicates the most severe percent diameter reduction of the left main coronary artery, including its most distal portion. If there is no obstruction of the left main coronary artery, indicate zero. This should be a number between 0 and 100, but is a string to accomodate No Study or Unknown. [FileMan 130,361]
leftVentricularContractionCategorizes the left ventricular contraction, where the function is assessed from the preoperative contrast ventriculogram, radionuclide angiogram, or 2-D echocardiogram. If ejection fractionis available, indicate the corresponding grade; otherwise, indicate the grade that qualitatively reflects left ventricular function. Possible values include:I - Ejection fraction >= 0.55 or narrative reports indicating normal left ventricular function.II - Ejection fraction range from 0.45 to 0.54 or narrative report indicating mild left ventricular dysfunction.IIIa - Ejection fraction range from 0.40 to 0.44 or narrative report indicating moderate left ventricular dysfunction. If "moderate" is the only rating available, select this category.IIIb - Ejection fraction range from 0.35 to 0.39 or narrative report indicating moderately severe left ventricular dysfunction.IV - Ejection fraction range from 0.25 to 0.34 or narrative report indicating severe left ventricular dysfunction.V - Ejection fraction < 0.25 or narrative report indicating very severe left ventricular dysfunction.No Study - Unable to make an assessment of the patient's left ventricular contraction grade or no study was performed[FileMan 130,363]
leftVentricularEndDiastolicPressureIndicates the patient's left ventricular end-diastolic pressure (LVEDP) measured following the a-wave (if present) at the cardiac catheterization most recent prior to surgery. This should be a number (in millimeters of mercury) but is a string to accomodate No Study or Unknown. [FileMan 130,357]
lowCardiacOutputIndicates whether the patient has had a postoperative cardiac index of less than 2.0 L/min/M2 and/or peripheral manifestations (e.g. oliguria) of low cardiac output present for 6 or more hours following surgery requiring inotropic and/or intra-aortic balloon pump support. Possible values include: Yes; No. [FileMan 130,387]
mitralRegurgitationIndicates the severity of any mitral regurgitation documented for the patient. This question should be answered using either the left ventricular angiogram or the cardiac ultrasound examination. Possible values include: None; Mild; Moderate; Severe; No Study. [FileMan 130,415]Diagnosis by angiogram:* None (or trivial): There is no visible systolic regurgitation across the mitral valve. Trace or trivial notations of mitral regurgitation should be listed as none.* Mild: Definite contrast can be seen in the left atrium following left ventricular injection, but the left atrium never fills to the same opacity as the left ventricle.* Moderate: The left atrium fills to the same opacity as the left ventricle over two or more systoles.* Severe: The left atrium fills to the same opacity as the left ventricle over a single systole.Diagnosis by cardiac ultrasound:* None (or trivial): No regurgitant jet is seen on the Doppler study. Trace or trivial notations of mitral regurgitation should be listed as none.* Mild: The area of the regurgitant jet is 0 - 4 cm2.* Moderate: The area of the regurgitant jet is greater than 4 - 8 cm2.* Severe: The area of the regurgitant jet is greater than 8 cm2 or greater than one third of the total left atrial area.
neuroDegenerativeDiseaseIndicates whether the patient has neuromuscular degenerative disease, defined as any of a number of congenital, hereditary, or acquired diseases resulting in chronic neurological deficits. Common examples of these diseases include muscular dystrophy, amyotrophic lateral sclerosis (ALS or Lou Gerhig's Disease), multiple sclerosis, and poliomyelitis. Possible values include: Yes; No; No study. [FileMan 130,337]
nitroglycerinIvUseIndicates whether the patient was administered nitroglycerin intravenously within 48 hours prior to surgery. Possible values include: Yes; No. [FileMan 130,355]
openWoundIndicates whether the patient exhibted evidence of an open wound that communicates to the air by direct exposure, with or without cellulitis or purulent exudate. This does not include osteomyelitis or localized abscesses. Possible values include: Yes; No; No study. [FileMan 130,218]
operativeDeathIndicates whether the patient died within the 30 days after surgery in or out of the hospital regardless of cause; or within the index hospitalization regardless of cause; or patient died greater than 30 days as a direct result of a perioperative occurrence of the surgery (e.g., mediastinitis). Possible values include: Yes; No. [FileMan 130,384]
peripheralNerveDamageIndicates whether the patient has major peripheral neurological injuries. Peripheral nerve damage may result from damage to the nerve fibers, cell body, or myelin sheath during surgery. Peripheral nerve injuries which result in motor deficits only to the cervical plexus, brachial plexus, ulnar plexus, lumbar-sacral plexus (sciatic nerve), peroneal nerve, and/or the femoral nerve should be included. Possible values include: Yes; No; No study. [FileMan 130,287]
preopCirculatoryDeviceIndicates whether there was any use of any device to assist ventricular function at the time the patient presents for surgery (or placed in the OR before anesthesia induction). [FileMan 130,474]. Possible values include:* None - No New Mechanical Circulatory Device was placed.* IABP - An intra-aortic balloon pump was placed to assist ventricular function.* VAD - A ventricular assist device (e.g., LVAD, BIVAD) was placed to assist ventricular function.* Artificial Heart - An artificial heart was placed to assist ventricular function.* Other - An other type of Mechanical Circulatory Device was placed.
preOpRiskFactorAny preoperative patient risk factors not documented elsewhere in this assessment that may contribute to this patient's risk of operative mortality. FileMan 130,430]
procedureTypeIndicates which test was used for the cardiac catheterization and/or angiographic data. [FileMan 130,476]. Possible values include:* Cath - A diagnostic procedure in which a catheter is introduced into a large vein, usually of an arm or leg, and threaded through the circulatory system to the heart to determine blood pressure and the rate of flow in the vessels and chambers of the heart and the identification of abnormal anatomy* IVUS - Intravascular Ultrasound may be used either alone or in combination with results from the cardiac catheterization. If used alone, indicate IVUS as the only test from which procedure results are calculated.* Both / Combination - If both IVUS and Cath are available and both tests were analyzed for the results, indicate Both/Combination. * No Study / Unknown - no cath study is available
pulmonaryArterySystolicPressureFor patients having a right heart catheterization, indicate the patient's pulmonary artery (PA) systolic pressure at the catheterization most recent prior to surgery. PA pressures obtained in the operating room prior to surgery are acceptable if they are obtained prior to anesthesia induction. This should be a number (in millimeters of mercury) but is a string to accomodate No Study or Unknown. [FileMan 130,359]
pulmonaryArteryWedgeMeanPressureFor patients having a right heart catheterization, indicate the patient's mean pulmonary artery wedge (PAW) [also called pulmonary capillary] pressure or left atrial pressure measured at the catheterization most recent prior to surgery. PAW pressures obtained in the operating room prior to surgery are acceptable if they are obtained prior to anesthesia induction. This should be a number (in millimeters of mercury) between -15 and 80, but is a string to accomodate No Study or Unknown. [FileMan 130,360]
reoperationForBleedingIndicates whether there was any re-exploration of the thorax for suspected bleeding after the patient left the operating room and within 30 days of surgery. Possible values include: Yes; No. [FileMan 130,389]
restPainOrGangreneIndicates whether the patient suffers from rest pain or gangrene during the 30 days prior to surgery. Rest pain is a more severe form of ischemic pain due to occlusive disease, which occurs at rest and is manifested as a severe, unrelenting pain aggravated by elevation and often preventing sleep. Gangrene is a marked skin discoloration and disruption indicative of death and decay of tissues in the extremities due to severe and prolonged ischemia. Include patients with ischemic ulceration and/or tissue loss related to peripheral vascular disease. Does not include Fournier's gangrene. Possible values include: Yes; No; No study. [FileMan 130,330]
rightCoronaryArteryStenosisIndicates the most severe percent stenosis in the right coronary artery. Include the proximal third of the posterior descending coronary artery. The right coronary artery initially runs in the groove between the right ventricle and right atrium; it usually gives off branches to both the right and left ventricles and the right atrium. The branches to the right atrium (sinus node artery) and right ventricle (conus branch and acute marginal branches) are commonly ignored when describing coronary artery disease. However, the right coronary artery is the most common source for the posterior descending coronary artery and often gives-off branches to the posterior-lateral free wall of the left ventricle. These are often known as left ventricular extension branches and are considered branches of the circumflex for the coding of severity of coronary disease. This should be a number between 0 and 100, zero meaning no obstruction of the coronary arteries, but is a string to accomodate No Study or Unknown. [FileMan 130,362.2]
sepsisCategorizes whether any systemic response to infection occured within the 48 hours before the surgery. Possible values include: Yes; No; SIRS; Sepsis; Septic shock; No study. [FileMan 130,218.1]
severeHeadTraumaIndicates whether the patient has sustained open or closed trauma to the head from external force, violence, or accident with resulting impairment in neurological function as manifested by motor, sensory, or cognitive impairments. Possible values include: Yes; No; No study. [FileMan 130,397]
steroidUseIndicates whether the patient has required the regular administration of oral or parenteral corticosteroid medications in the 30 days prior to admission for a chronic medical condition (e.g., COPD, asthma, rheumatologic disease, rheumatoid arthritis, inflammatory bowel disease). Does not include topical corticosteroids applied to the skin or corticosteroids administered by inhalation or rectally. Does not include patients who only receive short course steroids (duration 10 days or less) in the 30 days prior to surgery. Possible values include: Yes; No; No study. [FileMan 130,339]
superficialIncisionalSSIIndicates whether the patient had a superficial incisional Surgical Site Infection (SSI). Superficial incisional SSI is an infection that occurs within 30 days after the operation and infection involves only skin or subcutaneous tissue of the incision and at least one of the following:* Purulent drainage, with or without laboratory confirmation, from the superficial incision.* Organisms isolated from an aseptically obtained culture of fluid or tissue from the superficial incision.* At least one of the following signs or symptoms of infection: pain or tenderness, localized swelling, redness, or heat and superficial incision is deliberately opened by the surgeon, unless incision is culture-negative.* Diagnosis of superficial incisional SSI by the surgeon or attending physician.Note that the following conditions are not considered an SSI:* Stitch abscess (minimal inflammation and discharge confined to the points of suture penetration).* Infected burn wound.* Incisional SSI that extends into the fascial and muscle layers (see deep incisional SSI).Possible values include: Yes; No; No study. [FileMan 130,248]
surgicalPriorityThe surgical priority that most accurately reflects the acuity of patient's cardiovascular condition at the time of transport to the operating room. Possible values include: Elective (patient placed on elective schedule with surgery usually performed 72 hours or more following catheterization); Urgent (clinical condition mandates prompt surgery usually within 12 to 72 hours of catheterization (patients clinically stable on a circulatory support system should be included in this category)); Emergent-ongoing ischemia (clinical condition mandates immediate surgery usually on day of catheterization because of ischemia despite medical therapy, such as intravenous nitroglycerine. Ischemia should be manifested as chest pain and/or ST-segment depression); Emergent-hemodynamic compromise (persistent hypotension (arterial systolic pressure less than 80 mm Hg) and/or low cardiac output (cardiac index less than 2.0 L/min/MxM) despite iontropic and/or mechanical circulatory support mandates immediate surgery within hours of the cardiac catheterization; Emergent-arrest with CPR (patient is taken to the operating room in full cardiac arrest with the circulation supported by cardiopulmonary resuscitation (excludes patients being adequately perfused by a cardiopulmonary support system). [FileMan 130,414]
surgicalPriorityDateThe date and time that the cardiac surgical priority information was collected. [FileMan 130,414.1]
systemicSepsisCategorizes whether the patient has been diagnosed as having postoperative systemic sepsis. Possible values include: Yes; No; No study. [FileMan 130,250]
totaIIschemicTimeThe duration of time (in minutes) during which the ascending aorta was totally cross-clamped. Does not include the duration of partial aorta cross-clamp used for sewing the proximal anastomoses. [FileMan 130,450]
totalBypassTimeThe duration of time (in minutes) of cardiopulmonary bypass. This includes the total duration of full and partial cardiopulmonary bypass from all episodes of cardiopulmonary bypass. This information can generally be found on the perfusionist record and/or the anesthesia record. [FileMan 130,451]
wasMechCircSpptNeededIndicates whether the patient left the operating room suite with or required post-op placement of a new IABP, ECMO, or VAD for circulatory support within 30 days post-operatively. [FileMan 130,467]
wasMinimallyInvasiveIndicates whether a minimally invasive procedure technique used? FileMan 130,441]
weightLossIndicates whether the patient experienced a greater-than ten percent decrease in body weight in the six month interval immediately preceding surgery as manifested by serial weights in the chart, as reported by the patient, or as evidenced by change in clothing size or severe cachexia. Excludes patients who have intentionally lost weight as part of a weight reduction program. Possible values include: Yes; No; No study. [FileMan 130,215]