A Cross-Sectional Study of Pain Among U.S. College Music Students and Faculty

OBJECTIVES

Studies over recent decades have demonstrated significant performance-related pain among professional musicians. However, there have been no largescale studies to evaluate pain among college musicians. The aim of this study was to determine the prevalence and anatomical locations of performance-related pain among students and faculty at the college level and learn what musicians do when they have pain.

METHODS

Cross-sectional data were collected using an online survey distributed to colleges across the United States. Data were analyzed using REDCap electronic data capture tools and Microsoft Excel.

RESULTS

We received 1,007 survey responses and found that 67% of musicians at colleges experienced performance-related pain. The highest prevalence of pain was in woodwind musicians, with 83% reporting performance-related pain. The most common locations of pain were upper back (27%), lower back (26%), and fingers of the right hand (25%). Many student musicians with pain seek help from their teacher, but almost as many do not seek help at all. Less than 25% see a medical professional.

CONCLUSIONS

Most musicians at colleges experience performance-related pain in a variety of anatomical locations depending upon instrument/voice. Performing arts health organizations can increase awareness of treatment options for musicians suffering from performance-related pain, which may lead to improved quality of life and increased career longevity for college musicians.

Growth characteristics in cerebral palsy subtypes: a comparative assessment

AIM

Children with quadriplegic cerebral palsy (CP) have been found to have growth rates that differ from those of children with typical development. Little research has been performed to distinguish whether growth patterns in hemiplegic, diplegic, and quadriplegic CP differ from one another. The purpose of this study was to compare growth of children with quadriplegic, hemiplegic, and diplegic CP.

METHOD

Retrospective data were collected from the electronic medical record of patients with CP at an outpatient center. Linear mixed models were used to examine growth by diagnosis, using International Classification of Diseases, Ninth Revision (ICD-9) diagnosis codes 343.0 (diplegia), 343.1 (hemiplegia), and 343.2 (quadriplegia).

RESULTS

Heights and weights of children with quadriplegic CP were consistently lower than those with hemiplegic or diplegic CP. Children with hemiplegic CP had greater heights and weights than other CP subtypes. There were statistically significant differences in weight gain curves among the three diagnoses for males (p<0.05).

INTERPRETATION

Our study reveals differences in growth rates between hemiplegic, diplegic, and quadriplegic CP subtypes.

Quality of intrathecal baclofen from different sources

OBJECTIVE

To compare the quality of intrathecal baclofen obtained from a national compounding pharmacy (AnazaoHealth) with the manufactured product (Lioresal) with regard to accuracy and precision of baclofen concentration, and the content of the baclofen degradation product, 4-(4-chlorophenyl)-2-pyrrolidinone (PYR).

DESIGN

Samples of baclofen used for refilling intrathecal pumps were placed in 1.2-mL silicone gasket-sealed cryogenic vials and stored at or lower than -25°C. Each sample was a different lot number (Lioresal) or prescription number (AnazaoHealth). The laboratory was blinded to the source of the solutions. Coupled with electrospray ionization-mass spectrometry analyte confirmation, quantitation of baclofen and PYR in each sample was performed in duplicate by using high-performance liquid chromatography with ultraviolet detection via a photodiode array detector.

SETTING

Outpatient clinic.

PARTICIPANTS

Patients with intrathecal baclofen pumps.

MAIN OUTCOME MEASURES

Accuracy and precision of baclofen concentration, and concentration of PYR.

RESULTS

The difference of mean concentrations from expected concentrations of 500 and 2000 μg/mL were significantly greater for samples from AnazaoHealth compared with Lioresal. Values are shown as mean (± standard error), with n the number samples, for AnazaoHealth compared with Lioresal: (537.1 ± 6.7 μg/mL [n = 8] versus 515.6 ± 0.82 μg/mL [n = 5]; P = .034, respectively) and (2211.4 ± 21.6 μg/mL [n = 12] versus 2055.3 ± 8.7 μg/mL [n = 4]; P = .004, respectively). AnazaoHealth samples with expected concentration of 4000 μg/mL were 3987.7 ± 79.9 μg/mL, n = 7. All 9 Lioresal samples were within 5% of the expected concentration. Of 27 AnazaoHealth samples, 22 were more than 5%, and 8 were more than 10% different from the expected concentration. No PYR was detected in any sample from AnazaoHealth. All samples of Lioresal contained PYR, but all solutions contained less PYR than 1% of the baclofen concentration.

CONCLUSIONS

Lioresal was more accurate in concentration and more precise among batches than compounded intrathecal baclofen but had higher levels of PYR.