Biomedical subjects

Tom Christensen

Publications and source records attributed to Tom Christensen.

3 recordsLinked to original sources

PubMed2005

mtDNA analysis of human remains from an early Danish Christian cemetery.

One of Denmark's earliest Christian cemeteries is Kongemarken, dating to around AD 1000-1250. A feature of early Scandinavian Christian cemeteries is sex segregation, with females buried on the northern sides and males on the southern sides. However, such separation was never complete; in the few early Christian cemeteries excavated in Scandinavia, there were always a few males placed on the north side, and some females on the south side. At Kongemarken, several males with juxtaposed females were found on the north side of the cemetery. Thus, to evaluate possible kinship relationships, and more general questions of population affinity, we analyzed mitochondrial DNA extracted from nine individuals excavated in two different areas within the cemetery: one male and four females from Area 1, and one male and three females from Area 2. Using stringent laboratory protocols, each individual was unequivocally assigned to a mitochondrial haplogroup. A surprising amount of haplogroup diversity was observed (Area 1: 1 U7 (male), 1 H, 1 I, 1 J, and 1 T2; Area 2: 2 H, 1 I, and 1 T, with one H being male); even the three subjects of haplogroup H were of different subtypes. This indicates that no subjects within each area were maternally related. The observed haplogroup, U7, while common in India and in western Siberian tribes, was not previously observed among present-day ethnic Scandinavians, and haplogroup I is rare (2%) in Scandinavia. These observations suggest that the individuals living in the Roskilde region 1,000 years ago were not all members of a tightly knit local population and comprised individuals with genetic links with populations that were from much farther away.

Age Determination by Skeleton↗

PubMed2005

Development of functional requirements for electronic health communication: preliminary results from the ELIN project.

BACKGROUND: User participation is important for developing a functional requirements specification for electronic communication. General practitioners and practising specialists, however, often work in small practices without the resources to develop and present their requirements. It was necessary to find a method that could engage practising doctors in order to promote their needs related to electronic communication. MATERIALS AND METHODS: Qualitative research methods were used, starting a process to develop and study documents and collect data from meetings in project groups. Triangulation was used, in that the participants were organised into a panel of experts, a user group, a supplier group and an editorial committee. RESULTS: The panel of experts created a list of functional requirements for electronic communication in health care, consisting of 197 requirements, in addition to 67 requirements selected from an existing Norwegian standard for electronic patient records (EPRs). Elimination of paper copies sent in parallel with electronic messages, optimal workflow, a common electronic 'envelope' with directory services for units and end-users, and defined requirements for content with the possibility of decision support were the most important requirements. CONCLUSIONS: The results indicate that we have found a method of developing functional requirements which provides valid results both for practising doctors and for suppliers of EPR systems.

Attitude of Health Personnel↗

PubMed2003

Fast-track open transperitoneal nephrectomy.

OBJECTIVE: Hospital stay after open transperitoneal nephrectomy is usually 5-10 days, the limiting factors being pain, ileus, stress-induced organ dysfunction and fatigue. Recent studies have shown that aggressive multimodal rehabilitation may improve recovery and shorten hospitalization after other abdominal procedures. We therefore studied the effect of a multimodal rehabilitation regimen in patients undergoing open transperitoneal nephrectomy. MATERIAL AND METHODS: A total of 25 consecutive patients scheduled for elective transperitoneal nephrectomy were studied after the introduction of a multimodal rehabilitation regimen (continuous epidural analgesia, enforced mobilization and oral nutrition and revision of the transurethral catheterization and drain regimen) and compared with 50 consecutive patients treated before the introduction of this regimen. RESULTS: The multimodal rehabilitation regimen decreased hospital stay from 8 to 4 days (p < 0.001) with mobilization for approximately 6 h on the first postoperative day and 8 h on the second and third days. Use of a drain was shorter with the multimodal regimen (1 vs 4 days; p < 0.001), as was transurethral catheterization (1 vs 5 days; p < 0.001). "Medical" 30-day morbidity was low (6-8%) in both groups. CONCLUSION: Our results suggest that a multimodal rehabilitation regimen with optimized pain relief, enforced mobilization, early oral nutrition and short-term transurethral catheterization and drain placement may reduce hospital stay after open transperitoneal nephrectomy.

Aged↗