Relationship between lactate dehydrogenase and myeloperoxidase levels in human gingival crevicular fluid and clinical and microbial measurements

The present study was designed to determine, in a cross-sectional study, whether there was any relationship between levels of lactate dehydrogenase (LDH) and myeloperoxidase (MPO) in gingival crevicular fluid (GCF) and clinical periodontal status or microbial parameters. Another objective was to determine, in a longitudinal study, the effect of a single session of root planning on GCF levels of LDH and MPO and the relation to changes in clinical and microbial measurements. 15 and 12 test subjects with moderate to severe periodontal disease were seen in the cross-sectional and longitudinal study, respectively. 1 healthy and 2 diseased sites were evaluated in each subject. Higher LDH and MPO levels in GCF were closely associated with higher clinical and microbial signs of periodontal disease. Root planing was effective in reducing these enzymes in GCF, with an accompanying decrease in clinical and microbial signs associated with disease. The return of LDH to baseline levels at 3 months after instrumentation, without a corresponding return of clinical signs of disease, may serve as a marker for subclinical periodontal pathology.     

Effect of Influenza Vaccination of Nursing Home Staff on Mortality of Residents: A Cluster-Randomized Trial

OBJECTIVES: To evaluate the effect of staff influenza vaccination on all-cause mortality in nursing home residents.
DESIGN: Pair-matched cluster-randomized trial.
SETTING: Forty nursing homes matched for size, staff vaccination coverage during the previous season, and resident disability index.
PARTICIPANTS: All persons aged 60 and older residing in the nursing homes.
INTERVENTION: Influenza vaccine was administered to volunteer staff after a face-to-face interview. No intervention took place in control nursing homes.
MEASUREMENTS: The primary endpoint was total mortality rate in residents from 2 weeks before to 2 weeks after the influenza epidemic in the community. Secondary endpoints were rates of hospitalization and influenza-like illness (ILI) in residents and sick leave from work in staff.
RESULTS: Staff influenza vaccination rates were 69.9% in the vaccination arm versus 31.8% in the control arm. Primary unadjusted analysis did not show significantly lower mortality in residents in the vaccination arm (odds ratio=0.86, P =.08), although multivariate-adjusted analysis showed 20% lower mortality ( P =.02), and a strong correlation was observed between staff vaccination coverage and all-cause mortality in residents (correlation coefficient=−0.42, P =.007). In the vaccination arm, significantly lower resident hospitalization rates were not observed, but ILI in residents was 31% lower ( P =.007), and sick leave from work in staff was 42% lower ( P =.03).
CONCLUSION: These results support influenza vaccination of staff caring for institutionalized elderly people.     

Age is not associated with intracranial haemorrhage in patients with mild traumatic brain injury and oral anticoagulation

Background

Patients admitted to emergency departments with traumatic brain injury (TBI) are commonly being treated with oral anticoagulants. In contrast to patients without anticoagulant medication, no guidelines, scores or recommendations exist for the management of mild traumatic brain injury in these patients. We therefore tested whether age as one of the high risk factors of the Canadian head CT rule is applicable to a patient population on oral anticoagulants.

Methods

This cross-sectional analysis included all patients with mild TBI and concomitant oral anticoagulant therapy admitted to the Emergency Department, Inselspital Bern, Switzerland, from November 2009 to October 2014 (n?=?200). Using a logistic regression model, two groups of patients with mild TBI on oral anticoagulant therapy were compared — those with and those without intracranial haemorrhage.

Results

There was no significant difference in age between the patient groups with (n?=?86) and without (n?=?114) intracranial haemorrhage (p?=?0.078).In univariate logistic regression, GCS (OR?=?0.419 (0.258; 0.680)) and thromboembolic event as reason for anticoagulant therapy (OR?=?0.486 (0.257; 0.918)) were significantly associated with intracranial haemorrhage in patients with mild TBI and anticoagulation (all p?<?0.05). However, there was no association with age (p?=?0.078, OR?=?1.024 (0.997; 1.051)), the type of accident or additional medication with acetylsalicylic acid or clopidogrel ((both p?>?0.05; 0.552 (0.139; 2.202) and 0.256 (0.029; 2.237), respectively).

Conclusion

Our study found no association between age and intracranial bleeding. Therefore, until further risk factors are identified, diagnostic imaging with CCT remains necessary for mild TBI patients on oral anticoagulation of all ages, especially those with therapeutic anticoagulation because of thromboembolic events.

     

Reconstruction of orbital wall defects: critical review of 72 patients

Between January 1996 and December 2001, 72 out of 354 patients were included in a retrospective study analysing the outcome of repaired orbital wall defects. Selection was dependent on the availability of pre and postoperative CT scans and on ophthalmologic examination. In particular, orthoptical assessment was performed up to 1 year after operation. In 72 patients, 83 orbital wall defects were analysed and allocated to one of five categories. Accuracy and type of reconstruction were assessed in unilateral orbital wall defects (n=61) and compared with functional outcome. Reconstruction was performed by using PDS membrane (39%), calvarian bone (13%), titanium mesh (7%) or a combination of these materials (37%). Postoperatively, 91% of the patients had normal vision without double images within 20 degrees at every gaze. Accuracy of reconstruction correlated with severity of orbital injury and functional outcome. Functional outcome between category II and III fractures showed no significant difference. The medial margin of the lateral infraorbital fissure being preserved (category II fracture) facilitates reconstruction technically. Accuracy of orbital reconstruction is one important factor to obtain best functional outcome, but other determinants like displacement and/or atrophy of intramuscular cone fat should be considered.