Intrathecal immune response and virus-specific immunoglobulin M antibodies in laboratory diagnosis of acute poliomyelitis.

The intrathecal immune response in 114 patients with clinically diagnosed acute poliomyelitis was studied by measuring poliovirus-specific immunoglobulin M (IgM) antibodies in cerebrospinal fluid (CSF) by a mu-capture immunoassay and by assessing the ratio between levels of poliovirus-neutralizing antibodies in serum and CSF. Fecal specimens were used for attempts to isolate the causative agents. Eighty-five percent of CSF specimens collected during the first 15 days of disease contained virus-specific IgM antibodies. Forty-five of 48 tested children (94%) also showed virus-specific IgM responses in their sera. Later on, the antibody levels decreased, and positive results after 30 days of onset of paralytic symptoms were rare. If the presence of poliovirus-specific IgM antibodies in the CSF was considered diagnostic, more cases were confirmed by this test than by virus isolation. A relative increase in poliovirus-neutralizing antibodies in the CSF was observed in about one-third of the cases; in all but three cases the increase was observed together with the presence of virus-specific IgM antibodies. A systemic virus-specific response can be seen and poliovirus can be isolated from a subclinically infected individual suffering from a concomitant poliomyelitis-like disease, while positive results by the two methods demonstrating an intrathecal immune response are likely to indicate a true causal relationship between infection and disease. Demonstration of poliovirus-specific IgM antibodies in the CSF thus appears to be a sensitive and specific method for laboratory confirmation of clinically diagnosed poliomyelitis.     

An evaluation of clinical stability criteria to predict hospital course in community-acquired pneumonia

A number of different methods exist to assess clinical stability, a key component of pneumonia management. We compared the prognostic value of different stability criteria through a secondary analysis of the Edinburgh pneumonia study database. We studied four clinical stability criteria (Halm's criteria, the ATS criteria, CURB and 50% or more decrease in C-reactive protein from baseline). Outcomes included 30-day mortality, need for mechanical ventilation or vasopressor support (MV/VS), development of a complicated pneumonia, and a combined outcome of the above. A total of 1079 patients (49.8% male), with a median age of 68 years (IQR 53–80), were included. Ninety-three patients (8.6%) died by day 30, 91 patients (8.4%) required MV/VS and 99 patients (9.2%) developed a complicated pneumonia. Patients with increasing severity of pneumonia on admission, assessed by both CURB-65 and PSI, took a progressively longer time to achieve clinical stability assessed by any method (p < 0.001 for all criteria). Halm's criteria had the highest area under the curve (AUC) for prediction of 30-day mortality (AUC 0.95 (0.94–0.96)), need for MV/VS (AUC 0.96 (0.95–0.97)) and combined adverse outcome (AUC 0.96 (0.95–0.97)). C-reactive protein had the highest area under the curve for complicated pneumonia (AUC 0.96 (0.95–0.97)). Adding C-reactive protein to Halm's criteria increased the area under the curve, but the difference was only statistically significant for complicated pneumonia. All of the criteria performed well in predicting adverse outcomes in patients with pneumonia. Halm's criteria performed best when identifying patients at low risk of complications.     

History,indications, and advantages of orthopaedic operating room tables: a review

European Journal of Orthopaedic Surgery & Traumatology - Although surgical procedures have been occurring as early at 6500 BC, the modern sense of the operating room (OR) did not exist until...     

MRI-targeted biopsy for detecting prostate cancer: have the guidelines changed our practices and our prostate cancer detection rate?

International Urology and Nephrology - In our center, until 2018, MRI-targeted biopsy was underused. Since January 2018, we systematically performed MRI-targeted biopsy for suspicious...     

Methylphenidate vs. resperidone in treatment of methamphetamine dependence: A clinical trial

Background and aims

Currently, there is no widely accepted evidence-based pharmacotherapy regime for the treatment of psychostimulant dependence. Yet, different pharmacological approaches have been tried in the treatment of MA addiction. The present study was conducted to compare efficiency of methylphenidate which is relatively easily accessible in our country, with resperidone for this purpose.

Methods

Eighty-six patients with MA dependence according to criteria defined by DSM IV-TR were divided into two groups. Patients in group R were given oral resperidone 1 mg daily for 1 week; then 2 mg daily in a divided dose for 3 weeks. Patients in group M were given oral methylphenidate 10 mg daily for 2 weeks, 7.5 mg daily for 1 week, then 5 mg daily for 1 week. They were evaluated for drug craving, psychological, neurologic and somatic symptoms at the start and end of the study.

Findings

Both drugs were useful for lowering drug craving in patients; however resperidone was more effective (6.31 ± 8.31 vs.19.6 ± 12.45 cravings per week, respectively). The effects of resperidone were more notable in lowering frequency and intensity of psychiatric, neurologic, cardiac and somatic symptoms of the patients after discontinuation of MA abuse; however methylphenidate was effective too; though with a lower potency.

Conclusion

The present study confirmed that both methylphenidate and resperidone can successfully be used for treatment of MA dependence, in order to reduce drug craving and psychological, neurologic, and somatic problems in patients. However, the efficacy of methylphenidate was estimated to be less than that of resperidone for this purpose.     

Comparison of conventional phototherapy and phototherapy along with Kangaroo mother care on cutaneous bilirubin of neonates with physiological jaundice

Background: One of the adjuvant and desirable therapies is skin contact between mother and baby or Kangaroo mother care (KMC) that is a cheap, accessible, relaxing, noninvasive and easy method. This study aimed to compare the effect of conventional phototherapy method and phototherapy along with KMC on cutaneous bilirubin in neonates with physiological jaundice.

Materials and methods: In this randomized clinical trial, all infants with physiological jaundice who referred for phototherapy to Mofid Hospital of Shahid Beheshti University of Medical Sciences, Tehran, Iran were selected by convenience sampling based on inclusion criteria and were randomly assigned into two groups of conventional phototherapy (n?=?35) and phototherapy along with KMC (n?=?35).

Results: The results showed that there was a significant difference in the average volume of skin bilirubin before treatment with cutaneous bilirubin every 24?h after treatment (p?p?=?.236). Mean duration of hospitalization of infants in the intervention group was significantly lower than the control group (2.09 versus 3.03 d, p?Conclusion: Although KMC along with phototherapy has a favorable effect on the reduction of cutaneous bilirubin in neonates with physiological jaundice, there are not significant differences in routine care. This may need to do KMC for a longer time (more than 1?h) which must be surveyed in the future studies. KMC was effective in reduction of the duration of hospitalization in jaundiced infants.     

Turning behavior in healthy older adults: Is there a preference for step versus spin turns?

This research examined the prevalence of step turns and spin turns during turning while walking in healthy older adults. The potential effect of magnitude of the turn and walking velocity on the prevalence of the step and spin turns were also investigated by examining the participants’ performance as they made 45° and 90° turns while walking at three different velocities. Results showed that healthy older adults in our study preferred spin turns while walking either slower or faster than their natural walking speed. Only during 90° turns while walking fast the participants showed a preference for step turns over spin turns. Spin turns are less stable and have a greater biomechanical cost than step turns. The high incidence of spin turns in older adults may contribute to the higher risk of falling in this population.