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Biomedical subjects

A Lundgren

Publications and source records attributed to A Lundgren.

26 records · Page 2Linked to original sources
PubMed1978

Mandibular reconstruction with bone grafts.

A total of 23 patients with partly resected mandible were repaired with autogenous bone grafts from the iliac crest and ribs. The reasons for reconstruction are presented in Table 1. The grafts healed without complications in 21 cases. With the exception of two of the cases with gunshot wounds, all patients recovered good mobility of the jaw and satisfactory mandibular contours. The patients had been folloed up for 6 months to 11 years. Radiographic examination at the last examination showed that resorption of the graft had been only slight or moderate. Through marrow-spongious bone grafts are regarded as best from an osteogenetic point of view, our cases showed that good results can be achieved also with solid block grafts. The authors discuss the use of plate osteosynthesis without IMF instead of other types of graft fixation and IMF. In six cases where the area of the graft was loaded with a prosthesis, resorption was not more extensive than in the other cases.

Adolescent↗
PubMedDate not supplied

Singlet oxygen energy illumination during moderate cold ischemia prolongs the survival of concordant hamster xeno-heart transplants.

INTRODUCTION: Singlet oxygen energy (SOE) is a potent inhibitor of reactive oxygen species (ROS) in vitro and in vivo in certain dose ranges and can improve the levels of high-energy phosphates (HEP) in concordant hamster xeno-heart transplants. Some data indicate that a certain degree of cold ischemia (CI) might be beneficial to xenotransplants. We investigated if SOE illumination of hamster xeno-hearts during moderate cold ischemia (CI) improved graft survival. MATERIALS AND METHODS: Eighteen hearts from Golden Syrian hamsters (70 to 80 g) were subjected to 8 hours of CI in cold (+4 degrees C) saline solution (NaCL, 0.9%) before heterotopic cervical transplantation to Lewis rats (220 g). Among the treatment group (n = 8), SOE was produced by illuminating the hearts for 10 minutes every 30 minutes with photons at lambda 634 nm with the Oxylight equipment. Graft function was evaluated every 6 hours after transplantation with digital exam until cessation of heart beats. RESULTS: The graft survival of SOE-illuminated ischemic hamster xenografts was 2.34 +/- 0.56 versus 1.15 +/- 0.37 days in the control group (P < .05). All hearts displayed immediate graft function versus 70% in the controls (NS). CONCLUSIONS: SOE illumination at lambda 634 nm during moderate cold ischemia (+4 degrees C) can improve the survival of concordant hamster xeno-heart transplants. The exact mechanism(s) are currently unknown, but the effect might in part be exerted by a combination of reduced production of ROS and increased oxidative phosphorylation.

Animals↗
PubMedDate not supplied

Nosocomial parotitis.

A total of 22 cases of acute suppurative parotitis are reviewed. The causative factors were severe primary disease with salivary gland hyposecretion related to age (77 years), dehydration, oral inactivity and drugs (19 patients). The oral hygiene was poor and permitted ascending canalicular invasion of resistant staphylococci. The mortality was 27%. The treatment, including preferably cloxacilline and incision, is discussed. To stress the importance of prophylaxis the name "nosocomial parotitis" is suggested.

Acute Disease↗
PubMedDate not supplied

Peripheral intravenous lines: time in situ related to complications.

The purpose of this study is to examine the relationship between time in situ and the frequency of thrombophlebitis. Nurses' care and handling when using a peripheral intravenous (p.i.v.) line was also studied. The methods used were observation, interview, and document analysis after intervention, with respect to cannula time in situ. The study included 120 patients divided in two groups: (1) experimental, time in situ less than or equal to 24 hours, and (2) control, using current/daily routines from the wards. The frequency of thrombophlebitis after a p.i.v. was inserted was significantly higher and showed more troublesome and prolonged picture complications in the control group than in the experimental group. Care and handling suffered with increased number of days in situ. The nurses' documentation of inserted or removed cannula was incomplete in most cases, and notices about the insertion area were nearly nonexistent. It was determined that a short time in situ--when using a p.i.v.--is an important factor in preventing complications.

Aged↗