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Biomedical subjects

Y Samra

Publications and source records attributed to Y Samra.

At least 19 recordsLinked to original sources
PubMed1999

Normal IgG and impaired IgM responses to polysaccharide vaccines in asplenic patients.

Asplenic patients are at increased risk for life-threatening infections with polysaccharide-encapsulated organisms, and reports of responses to polysaccharide vaccines have been conflicting. Thirty-six asplenic patients and 15 healthy controls were immunized with pneumococcal, Haemophilus influenzae type b (Hib), and meningococcal vaccines. Antibody concentrations to Hib and pneumococcal serotypes 14 and 18C were measured by ELISA. IgG antibody responses to all three antigens were similar in asplenic patients and controls at 28 days following immunization. In contrast, asplenic patients had significantly lower IgM concentrations in response to Hib (P<.05) and to both pneumococcal serotypes 14 (P<. 005) and 18C (P<.001). IgA anti-Hib antibody was also lower in the asplenic group, as was total anti-Hib antibody measured by RIA. These results document that IgG responses to polysaccharide vaccines are normal in asplenic patients. The impaired IgM responses of these patients may explain conflicting reports from studies that measured only total antibody-binding concentrations.

Adolescent↗
PubMed1996

[Progress of lymphoproliferative disease associated with disseminated Kaposi's sarcoma].

A 73-year-old woman with a lymphoproliferative disorder had successive stages of reactive lymphadenopathy in sequence, a multifocal type of Castleman's disease and angioimmunoblastic lymphadenopathy. The disease ran an aggressive course and was associated with disseminated Kaposi's sarcoma. The linkage between the various types of lymphoproliferative disorders that presented in the same patient, as well as the association with Kaposi's sarcoma, are discussed.

Aged↗
PubMed1994

Involvement of the kidneys in Mediterranean spotted fever and murine typhus.

We reviewed 58 patients, 27 with murine typhus (MT) and 31 with Israeli Mediterranean spotted fever (IMSF), hospitalized at the Sheba Medical Center 1979-1988. Five patients with MT and five with IMSF had evidence of renal impairment. One patient with MT underwent a renal biopsy, and two patients with IMSF died and had autopsy examinations with histology of the kidney. The principal histopathological lesion found in those most severe cases of rickettsiosis-induced renal failure was multifocal perivascular interstitial nephritis. In contrast with previous reports, involvement of the kidneys in rickettsial infection seems to be relatively common. Early diagnosis and treatment with hydration and specific antimicrobial agents is mandatory to prevent morbidity.

Adult↗
PubMed1993

Leptospirosis in pregnancy and its effect on the fetus: case report and review.

We report the case of a pregnant woman with leptospirosis who gave birth to a healthy baby. We also review 15 previously reported cases of leptospirosis in pregnancy. Of these 15 cases, eight women had abortions, two delivered healthy babies, and four delivered babies who had signs of active leptospirosis; in one case, the fate of the fetus was not stated. It appears that women are more likely to spontaneously abort if leptospirosis occurs in the early months of pregnancy. Since congenital infection is rare, leptospirosis should not necessarily be considered an indication to terminate pregnancy. Increased awareness of the possibility of leptospirosis for pregnant women who live in areas where the disease is endemic is of utmost importance for early detection and treatment of the disease and, thus, for the safety of the fetus.

Abortion, Spontaneous↗
PubMed1993

Hyporeninemic hypoaldosteronism associated with multiple myeloma: 11 years of follow-up.

Hyporeninemic hypoaldosteronism is an important underlying condition, causing hyperkalemia with hyperchloremic metabolic acidosis, disproportionate to the degree of renal insufficiency present. The principal defect in this syndrome is a reduced level of plasma renin activity, which results in secondary hypoaldosteronism. Diabetes mellitus is usually the primary underlying renal disease, though other causes of renal diseases associated with this syndrome have been described. This case report describes for the first time an elderly patient with multiple myeloma, in remission for more than 11 years, associated with the syndrome of hyporeninemic hypoaldosteronism at the time of diagnosis. The complete resolution of the syndrome after vigorous chemotherapy is an intriguing possibility.

Aged↗
PubMed1990

Long-term follow-up after leptospirosis.

Human leptospirosis is an infectious disease that is a substantial problem in the Third World, but it can occur in developed countries as well. Survivors of the acute disease are considered to recover without sequelae, though little literature exists on long-term follow-up among these patients. Eleven patients, at an average of 22 years after acute leptospirosis, were reevaluated for possible delayed sequelae. Results showed that liver and renal disease had resolved, but headache and ophthalmic sequelae persisted. Even though the number of patients involved in this study is small, it appears that the eyes, particularly the anterior chambers, may be the site of continuing morbidity after acute human leptospirosis. The pathogenesis for persistent headache is not known.

Acute Disease↗
PubMed1990

Ergotamine-induced solitary rectal ulcer.

A rare case of ergotamine-induced solitary rectal ulcer is described in a 41 year old woman who used high doses of ergotamine tartrate-containing suppositories for severe migraine headaches. Complete recovery of the ulcer was noticed after cessation of treatment with the suppositories. The relevant literature is discussed.

Adult↗
PubMed1989

Relapse of rickettsial Mediterranean spotted fever and murine typhus after treatment with chloramphenicol.

In the years 1975-1984, 132 patients with rickettsial Mediterranean spotted fever and murine typhus were treated with chloramphenicol or tetracycline. Among the 24 patients who received chloramphenicol ten relapsed and one failed to respond at all. None of the 108 recipients of tetracycline suffered a relapse. It appears that tetracycline should serve as first-line therapy in several rickettsial diseases.

Chloramphenicol↗
PubMed1989

Drug-induced post-surgical haemorrhage resulting from trimethoprim-sulphamethoxazole. A case report.

A case of life-endangering post-operative haemorrhage due to thrombocytopenia resulting from administration of trimethoprim-sulphamethoxazole is described. Withdrawal of the drug led to complete recovery. This side effect should be kept in mind, especially in patients scheduled for surgical intervention. As thrombocytopenia may develop insidiously and gradually, it is highly recommended to perform full blood tests immediately prior to surgery and repeat them in the post-operative period.

Aged↗
PubMed1989

Hairy cell leukemia with an autoimmune syndrome, paraproteinemia, and cryoglobulinemia.

We have described an 82-year-old man with HCL who had autoimmune manifestations, paraproteinemia, and cryoglobulinemia. Chemotherapy resulted in a dramatic response, with a decrease in the tumor mass, a reduction in the clinical and serologic features of the autoimmune syndrome, and disappearance of the cryoglobulin, but without a significant change in the serum level of paraprotein.

Aged↗
PubMed1989

Acute myocardial infarction in pregnancy and puerperium.

Myocardial infarction during pregnancy and puerperium is very rare. Increased awareness of its possible occurrence is important for diagnosis. A young woman who developed acute myocardial infarction 14 days after labor is described. She had no coronary risk factors; coronary angiography was not done, but ergometric test involving maximal stress done 22 months after confinement did not reveal signs or symptoms of disease. An additional 62 women with myocardial infarction, 51 during pregnancy and 11 in puerperium, reported in the literature were reviewed. The following points were observed: (1) Hypertension was present in 25% of cases. (2) Four out of 6 coronary angiograms performed after the infarct were normal. (3) Fifteen patients died (24% mortality). (4) Coronary atherosclerosis was the main finding in 7 out of 9 post-mortem examinations.

Adult↗
PubMed1989

Delayed neurologic display in murine typhus. Report of two cases.

Two cases of murine typhus with prolonged neurologic manifestations appearing after the febrile stage of the illness are described. One patient had behavioral and memory disturbances for almost 18 months after defervescence, which terminated gradually without specific therapy. The second patient had similar manifestations over a period of weeks that rapidly resolved after tetracycline therapy. Such phenomena were not previously described in the literature, as far as we know, although similar manifestations were noted in Rocky Mountain spotted fever.

Adult↗