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Biomedical subjects

H Hedelin

Publications and source records attributed to H Hedelin.

118 records · Page 7Linked to original sources
PubMed1979

Trends in blunt abdominal trauma among hospital in-patients. Developments in a Swedish rural district over 30 years.

To analyse changes in background factors, injury pattern, and prognosis regarding blunt abdominal trauma in Sweden, the 30-year postwar (1946--75) development was investigated in a rural district. 396 patients were treated, showing a great increase during the last 5 years. The highest frequency was seen in patients aged 11--30 years. Abdominal trauma occurred most commonly during July and August. The growing aetiological importance of road accidents is shown. Equestrian accidents were common early in the period and again towards the end. The incidence of cerebrally confused patients increased. The organs most commonly traumatized were kidney, liver, and spleen. The frequency of multiple intra-abdominal injuries and also associated extra-abdominal injuries increased with time. There was a tendency towards shorter hospital stays. Mortality rates did not change during the period, even though injuries have become increasingly severe (judged by the Injury Severity Score). It is concluded that the improved care of patients compensated precisely for the increased severity of injuries, as reflected in mortality.

Abdominal Injuries↗
PubMed1978

Rupture of the diaphragm in patients wearing seatbelts.

Six diaphragmatic ruptures seen in a consecutive series of 435 cases of blunt abdominal trauma (1946-1976) are analyzed. All of the ruptures were sustained in car accidents, three of them with fatal outcome after severe trauma with multiple injuries. Four of the patients wore safety belts: in three of them a rather specific injury combination occurred--diaphragmatic rupture, multiple costal fractures, and pelvic or vertebral fracture. The role of the seatbelt in the pathogenetic mechanism of the rupture is discussed, and the possibility that the cause is the placement too high on the trunk, especially in short individuals, is raised.

Accidents, Traffic↗
PubMed1978

Pre-operative peroral zinc supplementation.

37 adult surgical patients were given peroral pre-operative zinc supplementation and changes in serum zinc concentration were followed for the first five post-operative days. The serum zinc level increased from 15.5 +/- 2.2 mumol/l to 18.7 +/- 2.9 mumol/l (p less than 0.001) after preoperative zinc treatment. It was found that the magnitude of the post-operative fall in serum zinc did not decrease, but that the mean serum zinc concentration post-operatively did not fall below the pre-operative serum zinc level in the average population. The effect of pre-operative supplementation was less pronounced in elderly patients, expecially after transvesical prostatectomy.

Age Factors↗
PubMed1978

Changes in serum zinc and copper induced by operative trauma and effects of per- and postoperative zinc infusion.

Serum zinc, albumin and copper levels were monitored for 5 days after operative trauma in 22 patients. As in earlier studies, a decrease in serum zinc and albumin levels was found. The mean fall in serum zinc was 40% and in albumin, 20%, of the preoperative values. Serum zinc increased after postoperative day 2; albumin remained decreased, indicating a rise in filtrable zinc. A correlation between the fall in serum albumin and serum zinc was found in individual patients. In contrast to previous studies, we found a decrease in serum copper postoperatively. A further 23 patients were supplemented with a zinc and copper containing infusion per- and postoperatively. These patients showed a marked (significant) reduction in the serum zinc fall, the serum level being normalized after 5 days. An insignificant reduction in the fall of serum albumin was also found.

Copper↗
PubMed1977

Zinc metabolism and surgical trauma.

Several investigations have shown that zinc deficiency impairs wound healing in surgical wounds and in chronic ulcers. It is also well established that surgical trauma produces a sharp decrease in serum zinc concentration. It has not been clearly shown that this decrease is due to a rise in urinary excretion. In the present investigation the relationship between urinary zinc excretion and the fall in serum zinc postoperatively was studied in 38 patients. Older patients usually had low preoperative serum zinc concentrations. Preoperative zinc substitution is therefore suggested for such patients.

Adult↗
PubMed1976

Roll seat belt induced injury of the duodenum.

A case of duodenal rupture with a roll three-point seatbelt is described. It is apparently the seventh reported case of duodenal rupture in safety belt users. A female driver fell asleep, and her car went off the road, rolling forward in a ditch, slowing slightly, and then came to a sudden stop. The rupture was unusual: on the first part of duodenum, intraperitoneal, and longitudinal. The rupture mechanism is discussed, and the deficiencies of the roll seatbelt pointed out in accidents like the one described.

Adult↗
PubMedDate not supplied

Sleeve anastomosis of the intestine. Physical and biochemical studies of a new intestinal anastomosis in rats.

A new, sleeve-shaped interpositional anastomosis of the small intestine was tested in rats. It was compared with a conventional two-layer anastomosis as regards healing, bursting strength, collagen content and complications. Each type of anastomosis was constructed in a separate group of 38 rats. The complications rate did not differ between the two groups. At 2 and 4 days postoperatively the bursting pressure was significantly higher in the sleeve anastomosis than in the conventional anastomosis. Hydroxyproline content did not differ between the two types of anastomosis. The study demonstrated superior breaking strength of sleeve anastomosis in the early postoperative period compared with conventional two-layer anastomosis. This finding merits further investigation.

Anastomosis, Surgical↗