Active clinical trials for "Muscular Atrophy"

Spinal Muscular Atrophy (SMA) is neurodegenerative disease of anterior horn cells of spinal cord and represents the second more frequent pathology in childhood. According to the age of onset and the maximum motor function the disorder is classified in 4 types. Patients with SMA II and SMA III often use orthoses to achieve postural and dynamic functions. In this retrospective observational study the investigators describe the characteristics of sitting position, standing and walking correlated to type and time of orthoses used.

Sarcopenia is associated with reduced pulmonary function in healthy adults, as well as with increased risk of pneumonia following abdominal surgery. Consequentially, postoperative pneumonia prolongs hospital admission, and increases in-hospital mortality following a range of surgical interventions. Little is known about the function of the diaphragm in the context of sarcopenia and wasting disorders or how its function is influenced by abdominal surgery. Liver surgery induces reactive pleural effusion in most patients, compromising post-operative pulmonary function. Hypotheses: Both major hepatic resection and sarcopenia have a measurable impact on diaphragm function. Sarcopenia is associated with reduced preoperative diaphragm function, and that patients with reduced preoperative diaphragm function show a greater decline and reduced recovery of diaphragm function following major hepatic resection. Goals: The primary goal of this study is to evaluate whether sarcopenic patients have a reduced diaphragm function prior to major liver resection compared to non-sarcopenic patients, and to evaluate whether sarcopenic patients show a greater reduction in respiratory muscle function following major liver resection when compared to non-sarcopenic patients. Methods and analysis: Trans-costal B-mode, M-mode ultrasound and speckle tracking imaging will be used to assess diaphragm function perioperatively in patients undergoing major hepatic resection starting one day prior to surgery and up to thirty days after surgery. In addition, rectus abdominis and quadriceps femoris muscles thickness will be measured using ultrasound to measure sarcopenia, and pulmonary function will be measured using a hand-held bedside spirometer. Muscle mass will be determined preoperatively using CT-muscle volumetry of abdominal muscle and adipose tissue at the third lumbar vertebra level (L3). Muscle function will be assessed using handgrip strength and physical condition will be measured with a short physical performance battery (SPPB). A rectus abdominis muscle biopsy will be taken intraoperatively to measure proteolytic and mitochondrial activity as well as inflammation and redox status. Systemic inflammation and sarcopenia biomarkers will be assessed in serum acquired perioperatively.

The purpose of the study is search the interrater and intrarater reliability of the quadriceps muscle using rehabilitative ultrasound imaging and search for an association between sarcopenia and quadriceps muscle in poststroke patients.

This is a cross-sectional study to clarify the gene lineage distribution of CMT genes in CMT patients in my country, draw a frequency map of CMT gene distribution, and assist in determining the genetic diagnosis strategy of CMT diseases. All patients will be collected for clinical and electrophysiological data. Patients and families who meet the enrollment criteria will be tested for blood tests.

There are two purpose of this study, first is to find whether arthroscopic rotator cuff repair is changing the appearance of supraspinatus muscle atrophy in each and every patient. Second, is to find how much approximate change one can expect depending on age and tendon retraction

The primary objective of this study is to investigate the natural history of spinal muscular atrophy (SMA) types 2 and 3 patients in Taiwan. This study will provide further insights into the clinical course SMA. Several analyses will be conducted regarding overall survival, demographic characteristics, motor function, respiratory and nutritional support, and genotype and phenotype correlation.

Parents or legal guardian of neonates who signed agreement will receive SMA screening test if their neonates are affected with SMA. The dried blood spots of routine newborn screening samples will be used to test if neonates have lost 2 copies of SMN1 gene. If neonates have positive SMA screening test, further confirmation with multiplex ligation-dependent probe amplification (MLPA) test and prospective motor function monitoring including physical and neurological examinations will be proved to make SMA confirmation. For any confirmed SMA patient, genetic counseling and standard of care will be proved.

Limb muscle dysfunction, characterized by atrophy and weakness, is amongst the most troublesome systemic consequences of chronic obstructive pulmonary disease (COPD) leading to poor functional status and premature mortality. One prevailing hypothesis stipulates that the deterioration in muscle structure and function during COPD results from a spillover of inflammatory mediators from the lungs to the systemic circulation and then to the muscles.