Reduced evoked motor and sensory potential amplitudes in obstructive sleep apnea patients.

It is unknown to what extent chronic intermittent hypoxaemia in obstructive sleep apnea causes damage to the motor and sensory peripheral nerves. It was hypothesized that patients with obstructive sleep apnea would have bilaterally significantly impaired amplitudes of both motor and sensory peripheral nerve-evoked potentials of both lower and upper limbs. An observational study was conducted on 43 patients with obstructive sleep apnea confirmed by the whole-night polysomnography, and 40 controls to assess the relationship between obstructive sleep apnea and peripheral neuropathy. All obstructive sleep apnea subjects underwent standardized electroneurographic testing, with full assessment of amplitudes of evoked compound muscle action potentials, sensory neural action potentials, motor and sensory nerve conduction velocities, and distal motor and sensory latencies of the median, ulnar, peroneal and sural nerves, bilaterally. All nerve measurements were compared with reference values, as well as between the untreated patients with obstructive sleep apnea and control subjects. Averaged compound muscle action potential and sensory nerve action potential amplitudes were significantly reduced in the nerves of both upper and lower limbs in patients with obstructive sleep apnea compared with controls (P < 0.001). These results confirmed that patients with obstructive sleep apnea had significantly lower amplitudes of evoked action potentials of both motor and sensory peripheral nerves. Clinical/subclinical axonal damage exists in patients with obstructive sleep apnea to a greater extent than previously thought.

Comorbidities with Posttraumatic Stress Disorder (PTSD) among combat veterans: 15 years postwar analysis / Comorbilidades con el Trastorno de Estrés Postraumático (TEPT) entre veteranos de guerra: un análisis a los 15 años después de la guerra

The aim of this study was to investigate the differences in the prevalence of somatic diseases among combat veterans and their contemporaries who were not exposed to the traumatic experience at the battlefield, and to determine whether socio-demographic factors, exposure to war-time trauma and/or injury might predict individual somatic diseases. The study included 1,558 subjects living in south Croatia: 501 male combat veterans with Posttraumatic Stress Disorder (PTSD) and the corresponding control group of 825 men who were not exposed to combat experience. Veterans with PTSD, regardless of the length of time spent in war, suffered more often from cardiovascular, dermatological, musculoskeletal, pulmonary and metabolic diseases than corresponding control subjects who were not exposed to combat experience. The predictors of cardiovascular, musculoskeletal and malignant diseases in veterans were age, length of time spent in combat, having been wounded. A longer period in the combat zone was associated with arrhythmias in veterans with PTSD complicated with other psychiatric comorbidities. PTSD as a result of exposure to war trauma increases the possibility of developing somatic diseases (AU)

El propósito de este estudio ha sido comparar la frecuencia de trastornos somáticos en veteranos de guerra y personas no expuestas a la experiencia traumática del campo de batalla, así como determinar si la exposición a factores socio-demográficos en tiempo de guerra pueden predisponer a traumas, alteraciones o trastornos somáticos. El estudio incluye 1,558 sujetos del sur de Croacia: 501 varones veteranos de guerra con síndrome de estrés postraumático (TEPT) y un grupo de control de 825 varones no expuestos a la experiencia de combate. Los veteranos con TEPT, independientemente del tiempo pasado en la guerra, desarrollan más a menudo alteraciones gastrointestinales, cardiovasculares, dermatológicas, locomotoras, pulmonares y metabólicas que los sujetos del grupo control. Los indicadores de alteraciones cardiológicas, locomotoras, entre otros, en veteranos han sido la edad, el tiempo pasado en combate y el daño allí sufrido. Un largo período en la zona de combate ha sido asociado con arritmias y otras complicaciones de tipo psiquiátrico. El TEPT, como resultado de la exposición a experiencias traumáticas del campo de batalla, incrementa la posibilidad de desarrollo de trastornos somáticos (AU)

Comorbidities with Posttraumatic Stress Disorder (PTSD) among combat veterans: 15 years postwar analysis.

The aim of this study was to investigate the differences in the prevalence of somatic diseases among combat veterans and their contemporaries who were not exposed to the traumatic experience at the battlefield, and to determine whether socio-demographic factors, exposure to war-time trauma and/or injury might predict individual somatic diseases. The study included 1,558 subjects living in south Croatia: 501 male combat veterans with Posttraumatic Stress Disorder (PTSD) and the corresponding control group of 825 men who were not exposed to combat experience. Veterans with PTSD, regardless of the length of time spent in war, suffered more often from cardiovascular, dermatological, musculoskeletal, pulmonary and metabolic diseases than corresponding control subjects who were not exposed to combat experience. The predictors of cardiovascular, musculoskeletal and malignant diseases in veterans were age, length of time spent in combat, having been wounded. A longer period in the combat zone was associated with arrhythmias in veterans with PTSD complicated with other psychiatric comorbidities. PTSD as a result of exposure to war trauma increases the possibility of developing somatic diseases.

El propósito de este estudio ha sido comparar la frecuencia de trastornos somáticos en veteranos de guerra y personas no expuestas a la experiencia traumática del campo de batalla, así como determinar si la exposición a factores socio-demográficos en tiempo de guerra pueden predisponer a traumas, alteraciones o trastornos somáticos. El estudio incluye 1,558 sujetos del sur de Croacia: 501 varones veteranos de guerra con síndrome de estrés postraumático (TEPT) y un grupo de control de 825 varones no expuestos a la experiencia de combate. Los veteranos con TEPT, independientemente del tiempo pasado en la guerra, desarrollan más a menudo alteraciones gastrointestinales, cardiovasculares, dermatológicas, locomotoras, pulmonares y metabólicas que los sujetos del grupo control. Los indicadores de alteraciones cardiológicas, locomotoras, entre otros, en veteranos han sido la edad, el tiempo pasado en combate y el daño allí sufrido. Un largo período en la zona de combate ha sido asociado con arritmias y otras complicaciones de tipo psiquiátrico. El TEPT, como resultado de la exposición a experiencias traumáticas del campo de batalla, incrementa la posibilidad de desarrollo de trastornos somáticos.

Psychometric validation of the Croatian version of the Quality of Life in Epilepsy Inventory (QOLIE-31).

The primary goals of this study were to adapt the Quality of Life in Epilepsy Inventory-31 items (QOLIE-31) questionnaire to the Croatian language and to assess the translated questionnaire's psychometric properties. Translation/retranslation of the English version of the QOLIE-31 was done, and all steps for cross-cultural adaptation process were performed properly by an expert committee. Later, QOLIE-31 questionnaires and previously validated Short Form-36 (SF-36) outcome instruments were given to 200 patients with epilepsy. 172 patients (86%) responded to the first set of questionnaires, and 114 of the first time respondents (66%) returned their second survey. The two measures of reliability as internal consistency and reproducibility were determined by Cronbach alpha statistics and intraclass correlation coefficient, respectively. Concurrent validity was measured by comparing with a SF-36 questionnaire, and measurement was made using the Pearson correlation coefficient (r). The study demonstrated satisfactory internal consistency with high Cronbach a values for all of the corresponding domains (seizure worry 0.84, medication effects 0.80, emotional well-being 0.73, energy/fatigue 0.76, cognitive functioning 0.71, social functioning 0.77, overall quality of life 0.65). The intraclass correlation coefficient for six domains of QOLIE-31 questionnaire demonstrated excellent test/retest reproducibility (ICC > or = 0.75), and good test/retest reproducibility (ICC 0.71) in one domain (cognitive functioning). Considering concurrent validity, three domains had excellent correlation (r = 0.75-1), while 11 had good correlation (r = 0.50 to 0.75), and 3 had moderate correlation (r = 0.25-0.50). This study demonstrated that, if measures are to be used across cultures, the items must not only be translated well linguistically but also must be culturally adapted to maintain the content validity of the instrument at a conceptual level across different cultures. Croatian version of QOLIE-31 will be a valuable contribution to outcome measurement in epilepsy patients, particularly in the context of treatment trials, but als in a wider research context.