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Biomedical subjects

B Ulmer

Publications and source records attributed to B Ulmer.

11 recordsLinked to original sources
PubMed1999

Conservative surgery for atrioventricular valve myxoma.

Patients with valvular myxoma are usually candidates for surgery because of the high incidence of life-threatening embolism. In some cases, the tumor is sessile or presents with a large peduncle: complete excision may then lead to valve replacement. We report two cases of atrioventricular valve myxoma where replacement was avoided. In one patient, a mitral myxoma appended from the edge of the anterior leaflet close to the chordae insertion; safe excision implied destruction of the two chordae and a peritumoral section of the anterior leaflet. A chordal transposition technique was used to preserve valve competence. In a second patient, a tricuspid myxoma causing syncopal episodes was resected; this was characterized by a large stalk, located on the anterior tricuspid leaflet away from chordal attachment and the valvular annulus. Treatment was by resection and the leaflet reconstructed with a pericardial patch. Techniques for conservative treatment of degenerative valvular disease or endocarditis, when monitored peroperatively by transesophageal echocardiography, may be successful in the surgical resection of atrioventricular myxoma.

Adult↗
PubMed1996

[Lithium poisoning].

A case of therapeutic overdosage in a 58-year-old woman is reported. Lithium plasma level was 3.7 mmol.l. All clinical and biological disturbances regressed in 3 days after controlled rehydration only. Aetiology, clinical picture, biological characteristics and treatment according to the severity of the lithium poisoning are discussed.

Bipolar Disorder↗
PubMed1995

As good as anyone: antenatal shared care at an inner Sydney hospital.

An exploratory survey design was used to assess satisfaction with antenatal care over a two-month period of women giving birth in an inner Sydney teaching hospital. Patients received obstetric services from private obstetricians, midwives, the hospital outpatient clinic, or 'shared care' between general practitioners and the outpatient clinic or birth centre. Insurance status and demographic information were collected across all groups. Shared care patients gave reasons why they chose that model of antenatal service. Ten per cent of women in the sample received shared care. Shared care patients were equally as satisfied as those in other modes of care in all but one factor--promptness of service (in which private obstetricians received higher ratings). They also judged shared care to have the advantages of being convenient, personal, and culturally appropriate. Significantly more patients in the shared care group were born overseas and they were less likely to hold private insurance. This paper discusses the results of the current study in the context of the Australian literature, explores some issues surrounding satisfaction research, and suggests further research arising from this work.

Australia↗
PubMed1991

Pharmacokinetics of molsidomine and of its active metabolite, SIN-1 (or linsidomine), in the elderly.

The pharmacokinetics of molsidomine were investigated in six young (25.5 +/- 0.6 years) and in six elderly healthy volunteers (81.1 +/- 3.1 years). After a 2 mg oral administration, molsidomine elimination half-life was prolonged in elderly subjects (1.9 +/- 0.2 h versus 1.2 +/- 0.1 h, P less than 0.05) because of a decrease in its plasma clearance (15.1 +/- 3.2 l.h-1 versus 41.8 +/- 2.5 l.h-1 (P less than 0.01) in young volunteers). The elimination half-life of the active metabolite, SIN-1 or linsidomine was also prolonged in elderly subjects (1.8 +/- 0.2 h versus 1.0 +/- 0.08 h, P less than 0.05). AUCs of both molsidomine and SIN-1 were increased in the elderly subjects, but the increase in the former was greater (x 3.4) than the increase in the latter (x 1.6). These results suggest that pharmacokinetics and metabolism of molsidomine are impaired in elderly subjects.

Administration, Oral↗
PubMed1988

[Transcutaneous trinitrine. Calling into question the efficacy and innocousness of its use in facilitating venous approach].

Seven infants aged 6 days to 9 months were tested for the use by rubbing of a pomade containing 1 mg trinitrine. The study was interrupted because of high blood passage of trinitrine. The authors emphasize the difficulty of any comparison with the use of this drug in adults. They indicate that there was no clinically appreciable side-effect but they advise to delay, until further studies, the use of this technique, with the only objective of improving the technique of intravenous injections or sampling.

Administration, Cutaneous↗
PubMed1987

Right atrial myxoma presenting as Budd-Chiari syndrome.

A 25-year-old man experienced rapidly progressing Budd-Chiari syndrome. Despite extensive radiological investigations, no atrial mass could be identified. At operation, a right atrial myxoma was found that originated from the eustachian valve and prolapsed into the inferior vena cava. Following successful removal of the myxoma, the ascites and peripheral edema resolved completely. Right atrial myxoma is a rare cardiac tumor that may present with embolic, obstructive, or constitutional signs and symptoms and is a potentially curable cause of Budd-Chiari syndrome.

Acute Disease↗