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Biomedical subjects

B Cushing

Publications and source records attributed to B Cushing.

At least 37 records · Page 2Linked to original sources
PubMed1994

Gut failure--predictor of or contributor to mortality in mechanically ventilated blunt trauma patients?

UNLABELLED: Thirty-seven ventilator-dependent blunt trauma patients (ISS 36 +/- 15) were randomized at 24 hours after injury to receive parenteral (TPN) (n = 15), enteral (TEN) (n = 12), or parenteral plus enteral (PN/EN) (n = 10) nutrition. The TEN and PN/EN patients had endoscopically placed transpyloric feeding tubes. Patients who had nutritional complications were two TPN (13%), three TEN (25%), and five PN/EN (50%). Enteral complications were tube occlusion (two), failed duodenal intubation (one), patient extubation of feeding tube (one), gastric reflux (two), and abdominal distention (two). Mortality rates were not different between the groups, but were significantly related to the nutrition-associated complications (p = 0.01): four deaths in ten (40%) with complications and one death in 27 (3.7%) without complications. All four deaths associated with complications occurred in the four with gastric reflux or abdominal distention. No deaths occurred in the other 18 TEN or PN/EN patients (p = 0.0001). Of the four deaths, three were associated with ARDS and respiratory infection (75%). CONCLUSIONS: In mechanically ventilated blunt trauma patients, endoscopic transpyloric tube placement and feeding has a substantial failure rate (36%). Intolerance to duodenal feeding has a remarkably high mortality (100%) in patients in whom gut dysfunction may be a manifestation of injury severity or directly affect survival.

Adult↗
PubMed1994

Inflammatory markers: superior predictors of adverse outcome in blunt trauma patients?

OBJECTIVE: To assess whether variables reflective of early metabolic responses to injury are predictors of outcome in critically ill trauma patients. DESIGN: Clinical inception cohort study comparing conventional measures of injury severity with early host response markers for the correlation of each with outcome. These data are prospectively collected in a group of patients being evaluated in a nutritional support investigation. SETTING: Intensive care unit (ICU) of a major Level I trauma center. PATIENTS: Seventeen blunt trauma patients, aged 18 to 60 yrs with an Injury Severity Score of > or = 15, requiring early mechanical ventilation. INTERVENTIONS: Blood and urine samples were routinely obtained from patients undergoing nutritional support by one of three routes. MEASUREMENTS AND MAIN RESULTS: Conventional assessment was consistent with moderate severity and variation: Injury Severity Score, 41 +/- 15; Glasgow Coma Score, 11 +/- 4; admission circulating lactate concentration, 4.8 +/- 2.2 mmol/L; and first 24-hr transfusion requirement, 3.1 +/- 2.9 L. The mean concentrations of inflammatory marker during the first week were: cholesterol, 2.67 +/- 0.80 mmol/L (103.2 +/- 31 mg/dL); C-reactive protein, 23 +/- 11 mg/dL; transferrin, 1.44 +/- 0.47 g/L; glucose, 9.21 +/- 2.27 mmol/L (166 +/- 41 mg/dL); albumin, 26 +/- 5 g/L; and nitrogen loss, 24 +/- 9 g/d. Hospital outcome variables were: ventilator days, 17 +/- 7; ICU days, 26 +/- 10; hospital days, 38 +/- 15; occurrence rate of adult respiratory distress syndrome (ARDS), 35%; infections, 82%; multiple organ failure, 71%; and total of hospital plus professional charges, $125,000 +/- $56,000. A significant (p < .05), but weak, correlation existed between all seven outcome variables and the inflammatory markers: ventilator days with cholesterol and C-reactive protein; ICU days with transferrin; total stay with cholesterol; ARDS with C-reactive protein; infections with glucose, cholesterol, and nitrogen loss; multiple organ failure with albumin and C-reactive protein; and financial charges with glucose. However, a significant correlation existed between only two of seven outcome variables and conventional measures of severity: multiple organ failure with lactate and financial charges with transfusion requirement. CONCLUSION: Readily obtainable inflammatory marker measurements may better reflect the summation effects of the early perfusion deficit and tissue injury in the blunt trauma patient compared with conventional measures of injury severity.

Adult↗
PubMed1993

Safety belt restraints and compartment intrusions in frontal and lateral motor vehicle crashes: mechanisms of injuries, complications, and acute care costs.

A 3-year prospective study examined 76 frontal (F) and 45 lateral (L) motor vehicle crash (MVC) patients with regard to seatbelt restraint use and occupant compartment contact and intrusion injuries. These 121 MVC victims with multiple injuries (39 belted [B] and 82 non-belted [NB]), admitted to a level I trauma center, were studied by accident reconstruction and medical data analysis. They had a MVC mean impact velocity (delta V) of 30 +/- 11 mph and an injury Severity Score of 29 +/- 12. Proper restraint use reduced brain injury in F MVCs (30% FB vs. 47% FNB) but had no effect in L MVCs (63% LB vs. 30% FB [p < 0.06]). Belt use did not protect against lung, liver, spleen, pelvis, or lower extremity (LE) injury. These appeared to be more a function of crash direction, with LE injuries higher in F crashes (p < 0.04) and pelvis injuries (p < 0.001) higher in L crashes. In FB crashes, however, properly used safety restraints were the primary cause of bowel or colon injuries (p < 0.006). Belts did not prevent thoracic or abdominal solid organ injuries in L crashes. Contact-intrusions (CI) of the car occupant compartment in F crashes were the main cause of brain (A-pillar), lung and liver (steering wheel and instrument panel), and LE (toepan) injuries; but in L crashes, side-door CI caused lung, aorta, liver, and pelvic injuries. In contrast, contact-only (CO) injuries of the steering assembly were mainly responsible for injuries to the lung, heart, and liver in F crashes, and side-door CO for lung, liver, and spleen injuries in L crashes. Deaths and complications after injury were higher among F MVC occupants, or when delta V was > or = 30 mph. Hospital and professional costs reflect the complex care needed for victims of multiple injuries: FB, $99,000; FNB, $95,000; LB, $75,000; LNB, $79,000; total, $10.7 million. Present vehicle safety standards are not adequate, and structural design changes are needed to improve restraints and protect occupants from intrusion-related injuries.

Abdominal Injuries↗
PubMed1993

Occult malignancy in neonatal sacrococcygeal teratomas. A report from a Combined Pediatric Oncology Group and Children's Cancer Group study.

PURPOSE: Six children who had mature or immature sacrococcygeal teratomas diagnosed in the newborn period have since been registered on a Pediatric Oncology Group/Children's Cancer Group germ cell study with recurrent malignant neoplasia [pure yolk sac tumor (YST) or teratoma with yolk sac elements]. RESULTS: Four of the children have responded to therapy, one has died, and one has been lost to follow-up. Review of the slides from five of the original tumors identified microscopic foci of YST in four. CONCLUSIONS: Detection of such foci in neonatal tumors is important because serum alpha-fetoprotein concentrations may not be helpful since they may normally be high in the newborn period due to fetal production.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1992

Imaging of Wilms' tumor: what is important!

The imaging of Wilms' tumor needs to be quite focused so that the oncologist and surgeon can most precisely stage the patient before operation. The imager needs to be exact about the extent of the primary tumor and define any invasion into the adjacent soft tissues. The ability to detect nodal disease is quite difficult but clearly influences the preoperative approach and staging. Children with large tumors extending across the midline in whom primary resection may lead to tumor spillage are prime candidates for preoperative chemotherapy, and the imager has significant input in making this decision. The imager must define metastases in the lungs and the liver and evaluate the risk of bilateral tumor (particularly metachronous) by searching the index kidney for multifocal lesions or nephroblastomatosis in either kidney.

Child↗
PubMed1990

Phase I study of a 120-hour continuous intravenous infusion of 5-fluorouracil in pediatric patients with recurrent solid tumors: a Pediatric Oncology Group study.

To determine the maximum tolerated dose of 5-fluorouracil administered as a 120-hour continuous intravenous infusion to pediatric patients, we performed a phase I study using a starting dosage of 900 mg/m2/day. The maximum tolerated dosage (MTD) was 1,100 mg/m2/day. At this dosage level 40% of courses were complicated by grade 3 mucositis. Three additional patients were treated at the dosage level of 1,000 mg/m2/day after the MTD was determined. We recommend the dosage level of 1,000 mg/m2/day for phase II studies of 5-fluorouracil administered as a 120-hour continuous intravenous infusion to pediatric patients.

Adolescent↗
PubMed1990

Phase I evaluation of diaziquone in childhood cancer. A Pediatric Oncology Group study.

We conducted a phase I clinical study of aziridinylbenzoquinone (Diaziquone, AZQ) given as a 4 hour infusion weekly X 4. Forty-five children with recurrent acute leukemia and 33 children with various advanced solid tumors participated. Severe myelosuppression was the dose limiting toxic effect, occurring in all patients at the upper dose levels. Gastrointestinal and hepatic toxicities were infrequent and not severe. No allergic reactions occurred. Objective tumor regression was noted in 3 of 25 patients with a CNS tumor and in 6 of 45 patients with acute leukemia. For phase II trials the recommended dosage of Diaziquone given by this schedule is 18 mg/M2/week X 4 for patients with a solid tumor, and is 30 mg/M2/week X 4 for children with acute leukemia.

Adolescent↗
PubMed1985

Recurrence of Wilms tumor after apparent cure.

The recurrence of Wilms tumor after a 5-year disease-free interval is rare. We present two patients who had recurrent disease after a disease-free interval of greater than 7 years. Three additional patients, registered with the National Wilms Tumor Study who had a recurrence after 5 years, are also described. Of these three patients, two had nephroblastomatosis. Because more patients are achieving long-term survival, careful surveillance after apparent "cure" is recommended, particularly if nephroblastomatosis is identified in the original nephrectomy specimen.

Child, Preschool↗
PubMed1983

Asymptomatic intracardiac metastasis from osteosarcoma: a case report with literature review.

Osteosarcoma very rarely metastasizes to the heart. Thirteen cases have been reported in the literature so far. Diagnosis in some of these cases was made during investigation for severe cardiac failure and in most of them at autopsy. Our patient, a 13-year-old girl, showed right pulmonary metastases on chest x-ray 1 year after above knee amputation for osteosarcoma of the distal femur. Routine preoperative computerized axial tomography (CT Scan) revealed a calcified lesion in the heart in addition to the pulmonary metastases. She was very active and completely asymptomatic. Two-dimensional echocardiography, angiography, and right and left heart catheterizations were done. This revealed a large mobile metastatic lesion in the right ventricle. The intraventricular tumor was successfully removed, and 12 days later she had a second thoracotomy for removal of pulmonary metastases. Nine months after her intraventricular metastasis was removed she developed a solitary right pulmonary metastasis. This was successfully resected. Now, 10 months later, she is disease free and completely asymptomatic.

Adolescent↗
PubMed1982

Epstein-Barr virus antibody in childhood Hodgkin's disease.

Fifteen patients with childhood onset of Hodgkin's disease were studied for prevalence and quantity of Epstein-Barr virus (EBV) antibody to learn about the relationship between infection with EBV and Hodgkin's disease. Findings indicated that, compared with normal child control subjects, prevalence of EBV antibody is not increased in Hodgkin's disease, but the quantity of antibody increases as the duration of Hodgkin's disease increases. It seems that EBV plays no role in the cause of Hodgkin's disease and that production of greater amounts of antibody relates to immunoregulatory defects associated with Hodgkin's disease.

Adolescent↗
PubMed1982

Familial T-cell lymphoblastic lymphoma: association with Von Recklinghausen neurofibromatosis and Gardner syndrome.

A family is described in which three of seven siblings developed a T-cell lymphoblastic lymphoma. Tumor cells formed rosettes with sheep erythrocytes, lacked surface Ig, and expressed human T- but not B-lymphocyte antigens. They lacked the enzyme terminal transferase suggesting a lymph node rather than thymic T-cell origin. Autopsy findings supported this conclusion. All three sibs, like their father, had numerous cafe'-au'lait spots indicative of Von Recklinghausen neurofibromatosis. One child had a subcutaneous fibroma, and another had multiple colonic polyps and exostoses characteristic of Gardner syndrome. Both are autosomal dominant conditions known to predispose to malignancies. The genetic factors responsible for these conditions may also predispose to the development of "post-thymic" T-cell lymphoblastic lymphoma.

Child↗
PubMed1982

Congenital primitive neuroectodermal tumor (neuroepithelioma) of the chest wall.

Primitive neuroectodermal tumor (neuroepithelioma) is a relatively common central nervous system tumor in children. Those arising from a peripheral nerve are extremely rare in childhood. There is only one reported case in 6-year-old where the tumor arose from the sciatic nerve. A case of neuroectodermal tumor of the chest wall, arising from the intercostal nerve, in a newborn is presented. The tumor metastasized to the brain. Prominent Homer-Wright rosettes, with central eosinophilic fibrillar substance similar to that seen in neuroepithelioma of the central nervous system, were present in the primary tumor and brain metastases. Ultrastructure, as revealed by transmission electron microscopy, is also described.

Brain Neoplasms↗
PubMed1981

Evaluation of the inferior vena cava by sonography and venography in children with renal and hepatic tumors.

Ultrasonography was used to examine 81 children with intra-abdominal or retroperitoneal malignancies for tumor extension into the inferior vena cava (IVC). In seven of the 18 patients with Wilms tumors and three of the seven patients with hepatic tumors, the IVC ws sonographically abnormal. Venography was also performed in five patients with Wilms tumors. However, percutaneous transfemoral venacavography did not always allow differentiation between extrinsic compression and intracaval tumor. It is suggested that venacavography, when necessary, should be performed via the brachial vein route and that the catheter be advanced into the right atrium. If an injection in this chamber does not result in enough reflux into the retrohepatic IVC for adequate evaluation, the catheter should be advanced into the IVC and a second injection made. However, ultrasonography is the preferred modality for evaluation of the IVC in children because it is the most accurate method and is noninvasive. Real-time ultrasonography makes it possible to distinguish between tumor extension into the lumen of the IVC and extrinsic compression of the vessel.

Child↗