PubMed Health⌕ Search

Biomedical subjects

S Greer

Publications and source records attributed to S Greer.

At least 91 records · Page 5Linked to original sources
PubMed1982

Intra-arterial chemotherapy using an implantable infusion pump and liver irradiation for the treatment of hepatic metastases.

Liver metastases are a common cause of death in colon carcinoma. The dual blood supply of the liver permits regional perfusion while hepatic catabolism fo 5-fluorouracil (FU), floxuridine (FUdR) permit higher drug exposures than systemic (IV) administration. We have studied the effect of continuous intra-arterial chemotherapy (FU: 5-10 mg/kg/day and FUdR: 0.2 mg/kg/day) and whole liver irradiation (1000 rad every 4 weeks, total dose of 3000 rad) for metastatic colon carcinoma to liver. Eighteen patients with metastases to liver only are reported using this combination therapy. Seven patients had percutaneous placement of a catheter via the brachial artery, two had operative placement of a catheter via the gastroduodenal artery, all of which were connected to the Cormed infusor system, nine had operative placement of the Infusaid implantable pump with catheter placement into the hepatic artery via the gastroduodenal artery. The median survival for the entire group was 241 days. In those patients whose liver function tests (bilirubin and alkaline phosphatase) were less than two times normal, the median survival was 770 days. The median survival of the patients with greater than two times normal LFT's was 178 days. Two patients died of complications of the treatment. One who developed irreversible radiation hepatitis but at autopsy had only two areas of microscopic tumor foci in the liver and another who had received only 15 days of infusion and 1000 rad to liver. This patient developed irreversible chemical enteritis secondary to chemotherapy infusion into the superior mesenteric artery. Three patients have undergone abdominal reexploration and one at autopsy, who were found to have no gross evidence of tumor in the liver despite previous pathologic confirmation. It appears that some patients with minimal tumor burdens can have sterilization of their tumors. There were three cases of reversible liver function abnormalities. Complications associated with conventional intra-arterial chemotherapy (artery thrombosis, catheter sepsis and dislodgement, pump infusion variation and pump failure) were not seen with the Infusaid delivery system. The pump is refilled every 2-3 weeks via percutaneous puncture. All therapy was given on an outpatient basis. Pump acceptance and tolerance was 100%. Intra-arterial chemotherapy can now be accomplished without the morbidity associated with it in the past. The combination of chemotherapy and liver irradiation may offer improved survival in selected patients.

Adult↗
PubMed1982

Isolation and mapping of glutathione reductase-negative mutants of Escherichia coli K12.

Two independent mutants defective in glutathione reductase (EC 1.6.4.2) were isolated in an Escherichia coli K12 strain lysogenized with bacteriophage Mu. The prophage was lost (and the ability to reduce glutathione regained) by 32% of the xylose-positive transductants when T4GT7 was used as the vector, but the markers were not cotransduced by P1. Similarly, the prophage site and malA were cotransduced by T4GT7 but not by P1. The gor gene maps between min 77 and 78 on the E. coli genome, and the mutation causes no growth defect.

Bacteriophage mu↗
PubMed1982

Psychological concomitants of cancer: clinical aspects.

Surveys have shown that cancer is probably the most commonly feared illness in our society. The lack of personal control over the current treatment methods and the uncertainty about outcome are two factors that set cancer apart from many other illnesses and influence greatly how patients, families, and physicians communicate. The psychological responses to cancer fall into four general categories: (1) sadness and hopelessness, (2) anxiety, (3) anger and/or guilt, and (4) a stance of avoidance or denial. These responses are modified by psychosocial factors such as premorbid psychological development, culture, the nature of emotional support, prior experience with illness, and the setting in which the cancer begins. In addition, factors such as age, sex, specific type of cancer and specific treatment, and the presence of delirium further modify the emotional response. Delirium is particularly common, often subtle, frequently unrecognized and may be a major cause of aberrant emotional reactions in the cancer patient.

Affective Symptoms↗
PubMed1979

Psychological response to breast cancer: effect on outcome.

A prospective, multidisciplinary, 5-year study of 69 consecutive female patients with early (T0,1N0,1M0) breast cancer was conducted. Patients' psychological responses to the diagnosis of cancer were assessed 3 months postoperatively. These responses were related to outcome 5 years after operation. Recurrence-free survival was significantly common among patients who had initially reacted to cancer by denial or who had a fighting spirit than among patients who had responded with stoic acceptance or feelings of helplessness and hopelessness.

Attitude to Death↗
PubMed1979

Samaritan contact among 325 parasuicide patients.

With the aim of aiding primary prevention of parasuicide by Samaritans, a study of 325 parasuicide patients admitted to hospital was undertaken to discover the extent of knowledge about Samaritans, the proportion of patients who had contacted Samaritans and the reasons why the remainder had not done so. Ignorance about Samaritans was found in 28 per cent, such ignorance being significantly more common among teenagers than in other age groups. Only 1.4 per cent had sought help from Samaritans immediately before the present parasuicidal act, though a further 13 per cent had contacted Samaritans previously. Suggestions are made for future public education programmes about Samaritans.

Adolescent↗