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Biomedical subjects

H Boxma

Publications and source records attributed to H Boxma.

At least 19 recordsLinked to original sources

Reliability and validity of the Health Outcomes Burn Questionnaire for infants and children in The Netherlands.

The Health Outcomes Burn Questionnaire (HOBQ) is a self-administered questionnaire to monitor outcome after burns in young children. This study aimed to assess feasibility, reliability and validity of the Dutch version of the HOBQ. The HOBQ was adapted into Dutch and tested in a population of children aged 0-4 years with a primary admission to a Dutch burn centre in March 2001-February 2004. Parents of 413 children were sent a questionnaire. To assess validity, a generic outcome instrument was included, the Infant Toddler Quality of Life Questionnaire (ITQOL). The response rate was 50.0% (n=196). Mean self-reported completion time was 16.7 min. The internal consistency of all the HOBQ-scales was good (Cronbach's alpha's>0.69). Test-retest results showed no differences in 7 out of 10 scales. High correlations between HOBQ-scales and conceptually equivalent ITQOL and scales were found in 5 out of 7 comparisons. The majority of the HOBQ-scales (7 out of 10) showed significant differences in the expected direction between children with a long versus short length of stay. Our data support the reliability and validity of the Dutch HOBQ. The HOBQ can be used as a research tool, to monitor functional outcome after burns in young children. Further research in other samples is recommend to fully establish the reliability and validity of the HOBQ.

Burns↗

Functional outcome after burns: a review.

We conducted a Medline search (1966-11/2003) on empirical studies into the consequences of burns. The International Classification of Functioning, disabilities and health (ICF) was used to classify dimensions of functional outcome. We included 50 studies, reporting a wide spectrum of ICF-dimensions. The current state of knowledge on the functional outcome after burns was hard to summarise, due to the wide variety in study designs and outcome assessment methods. Some indications on the major functional problems after burns were gained. Problems in mental function were described in subgroups of patients, both in children/adolescents and adults. Restrictions in range of motion were observed in about one-fifth of burn patients, even 5 years after injury. Problems with appearance were reported often (up to 43%), even in patients with minor burns (14%). Problems with work were reported in 21-50% of the adult patients, with permanent incapacity for work in 1-5%. None of the publications gave sufficient information to fully estimate the functional consequences of burns. We recommend the development of a standard core set for measurement and reporting of functional outcome after burns.

Activities of Daily Living↗

[Use of trauma triage teams at the cafe fire in Volendam].

For large-scale accidents, and for specific categories of wounds there is, in addition to the extramural assistance provided by helicopter teams and mobile medical teams, a need for secondary triage so that patients can be transferred as quickly as possible and the use of limited treatment capacity for specific injuries (such as serious burns) is optimised. After the cafe fire in Volendam, 203 patients were admitted to 27 hospitals. In almost all of these cases it concerned burns, often complicated by inhalation injury. Burns triage teams selected in the second instance patients with 30-80% surface burns who required artificial respiration, for admission to one of the burn centres in the Netherlands, Belgium or Aachen (Germany). The mortality under 75 patients with burns and an inhalation trauma who underwent a planned curative treatment was just 5.3%. Trauma triage teams should be officially recognised within the chain of the project 'Medical assistance in accidents and disasters' (Dutch acronym: GHOR) so that together with the uniform guidelines for the treatment of specific injuries that are present in casualty departments (for example the 'emergency management of severe burns (ESMB) protocol', a protocol for the care of patients with serious burns) the quality of care can be improved.

Belgium↗

Spontaneous regression of clinical inguinal hernias in preterm female infants.

PURPOSE: This is a prospective study of 8 clinically apparent inguinal hernias in 7 preterm infant girls. METHODS: The diagnosis was made clinically and confirmed by ultrasonography, which also showed the contents of the hernia. RESULTS: One hernia contained an ovary, the other 7 intestinal loops. The hernias with only intestinal loops regressed spontaneously when the girls were between the ages of 2 and 6 months postpartum. This was confirmed by ultrasonography. At follow-up 2 to 6 years later there has been no recurrence. The hernia that contained the ovary did not regress, and hernia repair (confirming the presence of the ovary) was carried out uneventfully. CONCLUSIONS: The authors suggest that preterm infant girls with an inguinal hernia should have ultrasonography performed at presentation. Surgery probably will be required when the hernia contains structures such as an ovary. When the hernia contains only intestinal loops an expectant policy may be advisable. Larger studies are needed to validate these findings.

Female↗

Three-dimensional dynamic external fixation of distal radial fractures. A prospective study.

This prospective study describes the experience with a new dynamic external fixator which provides three degrees of freedom, while the centre of rotation of all these movements is located in the wrist. 44 patients with unstable fractures of the distal radius were included. During the period of dynamisation, with a median flexion of 30 degrees, extension of 18 degrees, radial deviation of 0 degree and ulnar deviation of 20 degrees the range of motion needed to perform activities of daily living was approached. In spite of early mobilisation reduction was maintained. The radiological result was excellent or good in 82% of the patients and the functional result was excellent or good in 92% of the cases. Pin track infections were noted rather frequently, possibly related to the interaction between the soft tissues and the fixator pins. Based on the experiences of the study the device needs further improvement.

Adult↗

Diabetic patients with foot burns.

We describe six patients with non-insulin dependent (Type 2) diabetes mellitus (NIDDM) and thermal foot injury admitted to the Burn Centre in Rotterdam. They were all male with a mean age of 56.8 (range 47-63) years. The median patients' delay before admission was 27 (range 1-56) days. Five patients needed amputation. Healing of the wounds took a mean period of 9.5 (range 2-27) months. In two patients healing of the wounds took more than 1 year; these two patients also had recurrent foot burns. Neurological evaluation in four patients confirmed severe polyneuropathy and severe loss of heat pain, warmth, and cold sensation.

Burns↗

Randomised controlled trial of single-dose antibiotic prophylaxis in surgical treatment of closed fractures: the Dutch Trauma Trial.

BACKGROUND: The efficacy of prophylactic antibiotics in fracture surgery remains controversial for lack of well-documented prospective studies. We report here the findings of the Dutch Trauma Trial, a prospective, randomised, double-blind, placebo-controlled study of antibiotic prophylaxis in the primary operative treatment of limb fractures. Ceftriaxone was chosen because of its pharmacokinetic profile, including high serum levels, high tissue penetration, and long elimination half-life, makes it suitable for single-dose prophylaxis. METHODS: Patients aged 18 years or more, attending one of fourteen Dutch centres for acute treatment of closed fractures, were randomly allocated to a single preoperative dose of ceftriaxone 2 g or placebo, and evaluated for development of wound infection and nosocomial infection at 10 days, 30 days, and 120 days. To assess the effects of drop-outs and withdrawals, best-case and worst-case analyses were performed. FINDINGS: A total of 2195 patients were included. The incidence of superficial and deep wound infections after placebo was 8.3%, compared with 3.6% in the ceftriaxone group (p < 0.001, Pearson chi 2-test). The rate of nosocomial infection in the first month was 10.2% with placebo and 2.3% with ceftriaxone (p < 0.001, Pearson chi 2-test). Gram-positive bacteria were found in 74.5% of wound infections and 13.4% of nosocomial infections. INTERPRETATION: Adequate single-dose prophylaxis with a long-acting broad-spectrum antibiotic substantially reduces the incidence of wound infection and early nosocomial infection after surgery for closed fractures.

Adult↗

Treatment of pathological fractures of the humeral shaft due to bone metastases: a comparison of intramedullary locking nail and plate osteosynthesis with adjunctive bone cement.

In a retrospective study 37 patients were surgically treated for 38 fractures (27 actual and 11 impending) caused by metastatic lesions of the humerus shaft. A comparison between plate osteosynthesis with bone cement (20 cases) and intramedullary nailing (18 cases) was made. There was no mortality related to the surgical procedure. The patients' survival rate was 61% after 3 months and 44% after 6 months; six were alive after 1 year. Overall, a subjective and objective relief of pain was achieved in 92% and 79%, respectively. Restoration of arm function was improved in 95%. The operative course was complicated in six patients after plate osteosynthesis (three local and three systemic complications) and in four patients after intramedullary nailing (one local and three systemic complications). Fixation failed in four patients, instability developed twice after intramedullary fixation without bipolar static locking. No significant difference in survival rate, pain relief, restoration of function and complications were associated with methods of treatment, or with operation of actual or impending pathological fractures. Despite the poor life expectancy our results indicate that intramedullary nailing with bipolar static locking and post-operative irradiation or plate osteosynthesis with bone cement for treatment of pathological (impending) fractures of the humerus shaft are safe ways to restore arm function and improve quality of life.

Adult↗

Outbreak of group A streptococci in a burn center: use of pheno- and genotypic procedures for strain tracking.

In a burn center, an outbreak of group A streptococci (GAS) colonizations involving 13 patients and two staff members occurred. Adverse events due to GAS, loss of skin graft after initial take (secondary loss) and partial take, occurred in patients who underwent surgery before the colonization was detected. GAS isolates from nine patients and one staff member were stored and subsequently pheno- and genotyped by T serotyping, gas chromatography, M genotyping, and random amplified polymorphic DNA typing. The outbreak was caused by two types of GAS, identified as T4/28-M48 and T13-M77 by T serotyping and M genotyping. Random amplified polymorphic DNA typing and gas chromatography distinguished both clusters accurately. One subcluster indicated by gas chromatography could be linked to the acquisition of GAS from a roommate. The T13-M77 cluster was characterized by rapid spread through the center compared with the T4/28-M48 cluster. One patient contracted the T13-M77 strain while in protective isolation, indicating a role for staff members in the transmission. Our standard GAS control policy, consisting of twice weekly screening of all burned patients and immediate isolation and treatment, proved efficacious in preventing further spread of GAS. Reporting by staff members of signs and symptoms compatible with GAS infection was reenforced.

Adolescent↗

Tannic acid as a topical agent in burns: historical considerations and implications for new developments.

The usage of tannic acid (TA) as a topical agent in burns in the past and the present is described. Its introduction by Davidson in 1925 led to the widespread use of TA. The high infection risk during times of war and reports of liver damage after application of high doses of undefined TA mixtures brought discredit to the TA treatment. German and Chinese authors have been able to refute these claims and propagate a safe therapeutic regimen. Recent animal experimental and clinical investigations confirm the many advantages: pain reduction, rapid haemodynamic stabilization, delayed primary excision, early mobilization and good cosmetic results.

Administration, Topical↗

[Toxic epidermal necrolysis, a life-threatening skin disease].

Toxic epidermal necrolysis (TEN; Lyell's disease) was diagnosed in three patients: an 8-year-old boy and two women aged 39 and 25. Treatment consisted of daily sterile wound care using a synthetic wound covering, oral as well as tube feeding and administration of fluid, electrolytes and albumin. Sepsis developed in 2 patients, and was treated with specific antibiotics. Irreversible sight loss developed in 1 patient. A burns centre offers optimal conditions for treatment because of the combined availability of both nursing and medical expertise and of the required infrastructure needed for antisepsis, climate control and intensive care.

Adult↗

Impending and actual pathological fractures in patients with bone metastases of the long bones. A retrospective study of 233 surgically treated fractures.

OBJECTIVE: Analysis of short-term and long-term complications after cemented osteosynthesis for pathological fractures. DESIGN: Retrospective study. SETTING: South Municipal Hospital and the Daniël den Hoed Cancer Centre, Rotterdam, The Netherlands. SUBJECTS: 199 patients consecutive surgically treated between 1978 to 1990 for 233 fractures (161 actual and 72 impending) caused by metastatic lesions of the femur, humerus and tibia. INTERVENTIONS: Local resection of the tumour was followed by endoprostheses (n = 52) and by internal plate osteosynthesis (n = 167); 14 fractures were treated with intramedullary nails. Bone cement was added in 211 cases (91%). MAIN OUTCOME MEASURES: Pain relief, mobilisation, complications. RESULTS: Pain relief was achieved in about 90%. 145 (76%) who were treated for fractures of the lower extremity were able to walk again. There were 13 local complications: 26 (11%) implanted devices failed (cumulative probability 40%, after 60 months). In 11 cases the fixation failed after 7 weeks. The failure rate was 16% in the subtrochanteric region treated with an angled blade (probability 70% after four years). The patients' survival rate was 55% after six months and 20% at two years. CONCLUSION: Despite the poor life expectancy, our results indicate that hemiarthroplasty or osteosynthesis with bone cement for treatment of pathological (impending) fractures is a safe way to restore limb function and to improve quality of life.

Adult↗

Cytotoxic effects of topical antimicrobial and antiseptic agents on human keratinocytes in vitro.

The cytotoxicity of commonly used antimicrobial and antiseptic agents to cultured human keratinocytes was investigated, combining a morphologic assay with a quantitative neutral red (NR) spectrophotometric assay. Main outcome criteria of response were the initial cytotoxicity (NR 90) and midpoint cytotoxicity (NR 50) and the highest tolerated dose (HTD), a concentration causing the first observed morphologic alterations. These values were compared with commonly administered clinical doses or calculated doses. Thirty-five agents were evaluated; five agents were also subjected to an assay for cell morphologic alterations, and HTD and percentage of cells taking up trypan blue and annihilation dose were assessed. These studies show that in clinical concentrations many, but not all, agents exert profound cytotoxic effects. The results suggest that under certain conditions cultured epithelial grafts may be exposed to clinical concentrations of neomycin, clindamycin, framycetin, erythromycin, gentamicin, and 0.1% solutions of povidone-iodine. Tetrachlorodecaoxygen anion complex (TCDO) should be further evaluated as a likely effective cleansing agent before culture grafting.

Anti-Bacterial Agents↗

Changes in zinc metabolism after burns: observations, explanations, clinical implications.

Zinc in plasma and urine and serum albumin and alpha 2-macroglobulin were measured in 48 patients with burns. Mean total burned surface area amounted to 18%, ranging from 2 to 55%, and mean hospitalization time amounted to 35 days, ranging from 10 to 124 days. All parameters showed a decrease during the first two post-burn days. Minimal values were reached on days 2 and 3 for plasma and urine zinc, and between days 5 and 10 for the proteins. Thereafter, values increased, rapidly for both plasma and urinary zinc, more slowly for albumin and alpha 2-macroglobulin. The ratio R of the total plasma zinc minus the alpha 2-macroglobulin concentration to the albumin concentration is postulated as an indicator for zinc deficiency. From values of R and of the urinary zinc excretion, conclusions can be drawn about various processes of the zinc metabolism that may occur during the acute stage following the thermal accident and during the stages of tissue demarcation and of recovery. These processes are discussed in terms of possible temporary and/or local zinc deficiency. Evidence is presented that zinc administration in only indicated during the final stages of recovery in case of inadequate dietary intake.

Adolescent↗

Performance of external fixation devices in femoral fractures; the ultimate challenge? A laboratory study with plastic rods.

Whether or not external fixation should be applied to the femur, and on what grounds, will depend upon a variety of factors. It is rarely considered to be the treatment of first choice. External fixation can, however, be indicated in certain circumstances. Looking for optimal rigidity in such cases we tested and compared the stability of 14 different femoral external fixators in an experimental model. It was found that the weight of the different frames varied from 400 to 2000 g. The comparative stability also varied widely. Movements of between 1 mm and 4 cm and rotations varying from almost 0 degrees to 16 degrees were measured at the (experimental) fracture site, based upon the geometry of an adult patient. In view of this finding primary bone-healing would not be expected to occur, since it demands more stability than external femoral fixation can offer. A relatively simple two-dimensional (unilateral) frame can be as rigid as a three-dimensional one, in response to all but transverse loading.

Adult↗