Evaluation of common carotid artery wall stiffness by shear wave elastography in smokers and non-smokers.

INTRODUCTION: Smoking is one of the most important preventable causes of cardiovascular diseases. Vascular disease caused by smoking is associated with vascular endothelial damage, platelet aggregation, and adhesion. In our study, we examined the effect of chronic smoking on vessel wall stiffness in smokers and control group by measuring carotid artery wall stiffness by shear wave ultrasonography. METHODS: Sixty-two smokers of similar ages and genders, and 67 people who never smoked in the last ten years were included as the control group in this cross-sectional study. Arterial wall stiffness over the common carotid arteries of all participants was measured by shear wave elastography (SWE). In addition, each patient's blood pressure, fasting blood glucose, body mass index (BMI), HDL and LDL cholesterol measurements were recorded. RESULTS: Arterial wall stiffness values in smokers were found to be statistically significantly higher than in non-smokers. The mean of SWE measurements of the smokers was 47.3 ± 6.2 kPa, and that of the control group was 42.9 ± 4 kPa. The mean values of HDL and LDL of the smokers were 46.9 ± 5.6 mg/dL and 147.3 ± 9.3 mg/dL, respectively, and those of the control group were 50.3 ± 5.1 mg/dL and 136.9 ± 5.9 mg/dL. The LDL cholesterol values were statistically significantly higher in smokers compared to the control group, and HDL cholesterol values were statistically significantly lower in smokers. CONCLUSIONS: In our study, the arterial wall stiffness values measured by the SWE technique were higher in smokers than non-smokers.

High-Frequency Bipolar Coagulation Limits Epidural Fibrosis in Lumbar Microdiscectomy.

BACKGROUND AND AIM: We propose a vast study to examine the effect of high-frequency bipolar coagulation used in the operating room to prevent the development of epidural fibrosis after lumbar microdiscectomy. MATERIALS AND METHODS: A total of 1004 participants were divided into two groups: no high-frequency bipolar coagulation (NC group) and high-frequency bipolar coagulation (C group). Postoperative epidural fibrosis, infection rates, reoperation status, and dural injury complications during the operation were recorded. RESULTS: Considering the epidural fibrosis rates of the two groups, epidural fibrosis was seen in 10.6% of the patients in the NC group. In contrast, it was seen in only 6.2% of the patients in the C group. CONCLUSION: The complication of epidural fibrosis that develops after lumbar microsurgery operations both impairs patient comfort and brings with it the complications of reoperation. After performing hemostasis with bipolar, coagulating the annulus may effectively reduce epidural fibrosis and prevent reoperation.

Management of Epidural Hematomas in Pediatric and Adult Population: A Hospital-Based Retrospective Study.

OBJECTIVE: We retrospectively reviewed and evaluated our treatment protocols in epidural hematoma (EDH) cases to compare surgical versus nonsurgical treatment subsections with their trauma mechanism, injury type, clinical pattern, radiological details, functional outcome, and mortality rates. METHODS: This study included 350 patients (142 females and 208 males) treated for EDH between 2010 and 2018. Two hundred seven operated and 143 observed patients for EDH were compared for demography, injury type, treatment, and outcome scores retrospectively. Glasgow Coma Scale and Glasgow Outcome Scale were used to standardize the clinical findings. Marshall and Rotterdam classifications classified radiological abnormalities. The Infinity PACS system measured hematoma volume, and volume parameters were evaluated differently in pediatric and adult groups. RESULTS: Radiological parameters showed that the observation was more favorable when the EDH volume was <30 ml in the adult and <20 ml in the pediatric group. However, close clinical follow-up with repeated computerized tomography scans suggested that when the hematoma increases in volume in the first 24 hours, it should be treated surgically. Headache, vomiting, and paresis were significant clinical symptoms in this period. Only 11% of conservatively followed cases required delayed surgical intervention. When we analyzed the findings of the 2 groups of the patient, pediatric and adult, we noticed that rebleeding after the first surgery was more common in the adult group than the pediatric group, whereas surgery due to a growing hematoma was less common in the pediatric group. CONCLUSIONS: Age, trauma severity, initial neurological statuses, and accompanying comorbidities can affect the functional outcome in acute EDH. We found that urgent surgical intervention and conservative treatment may lead to excellent results in most cases. Thus, EDH can be managed both conservatively and surgically in certain conditions. We made a comparison between pediatric and adult age groups according to treatment modalities. Both rebleeding and mortality rates are relatively lower in the pediatric operated group than in the adult operated group. In the adult observation group, rates of delayed surgery because of growing hematoma seem relatively higher than in the pediatric observation group. During radiological follow-up, we found that the progression rate of EDH in the adult observed group according to time is faster than in the pediatric observed group (P < 0.05).

Association between lesion enhancement and breast cancer in contrast-enhanced spectral mammography.

BACKGROUND: Contrast-enhanced spectral mammography (CESM) may help to determine the malignancy potential of lesions according to the degree of enhancement. PURPOSE: To investigate the correlation between the degree of contrast enhancement of the lesions in contrast-enhanced spectral mammography (CESM) and the final histopathological diagnosis in patients with BI-RADS 4 and 5 lesions. MATERIAL AND METHODS: CESM was performed in 128 patients who had BI-RADS 4 and 5 lesions on mammography and underwent histopathological examination. A total of 128 index lesions were scored using a 4-point scale regarding the degree of contrast enhancement (0 = no contrast enhancement, 1 = minimal, 2 = moderate, 3 = marked), a score of 2 and 3 was accepted as suggestive of malignancy. The study was approved in our institutional scientific committee. RESULTS: In total, 76 (59.4%) of the lesions had benign histopathological results, whereas 52 of them had malignant results. Contrast enhancement was not observed in 22.7% of the lesions while 24.2% had minimal enhancement, 18.8% had moderate enhancement, and 34.4% had marked enhancement in CESM. The sensitivity of the degree of contrast enhancement in CESM was 98.1%, when the specificity was 77.6%, positive predictive value was 75%, negative predictive value was 98.3%, and accuracy was 85.9%. CONCLUSION: This study demonstrated that the degree of contrast enhancement of the lesions in CESM may be used in daily practice with easily performing a visual scale in predicting the malignancy potential of the lesions.

A novel missense mutation, p.(R102W) in WNT7A causes Al-Awadi Raas-Rothschild syndrome in a fetus.

Al-Awadi-Raas-Rothschild syndrome (AARRS) is a rare autosomal recessive disorder which consists of severe malformations of the upper and lower limbs, abnormal genitalia and underdeveloped pelvis. Here, we present a fetus with severe limbs defects, including bilateral humeroradial synostosis, bilateral oligodactyly in hands, underdeveloped pelvis, short femora and tibiae, absence of fibulae, severely small feet, and absence of uterus. An autosomal recessively inherited novel mutation in WNT7A found in the fetus, c.304C > T, affects an evolutionarily well-conserved amino acid, causing the p.(R102W) missense change at protein level. The findings presented in this fetus are compatible with diagnosis of AARRS, expanding the mutational spectrum of limb malformations arising from defects in WNT7A.

Benign neurological recovery with low recurrence and low peridural fibrosis rate in pediatric disc herniations after lumbar microdiscectomy.

Lumbar disc herniation (LDH) is a very rare clinical entity in the pediatric age group, therefore only a few clinical studies have until now investigated the clinical behavior of pediatric LDH. The natural clinical history, postoperative neurological recovery with radiological follow-up and quality of life related to the disorder continue to be unknown. We prospectively planned and designed two groups of LDH patients scheduled for surgery in this study. The operations were performed by the same surgeon in a randomized fashion. The first group consisted of pediatric patients and the second group of adult patients. Both groups contained 32 cases. Postoperative neurological recovery was assessed using the visual analog scale and Aberdeen Low Back Pain Scale. Postoperative peridural fibrosis was also evaluated in postcontrast magnetic resonance sections. After 3 years of follow-up, all parameters were significantly better in the pediatric LDH group with no recurrence of the disease. The pediatric LDH group was postoperatively better than the adult group both clinically and radiologically. Although LDH seems a catastrophic disease in the pediatric age group, the clinical picture and neurological recovery have a significantly more benign course than in adult patients even in operated cases.

Microdecompressive laminatomy with a 5-year follow-up period for severe lumbar spinal stenosis.

STUDY DESIGN: The 2 groups of patients with severe lumbar spinal stenosis were prospectively compared as a case control study. OBJECTIVES: This prospective case control study sought to evaluate bilateral microdecompressive laminatomy (MDL) for treatment of severe lumbar spinal stenosis. SUMMARY OF BACKGROUND DATA: Total laminectomy is a general consensus on the therapy of severe spinal stenosis. The authors tried to investigate a new minimal invasive approach. METHODS: Patients were randomly divided into 2 groups. In first group, 34 patients underwent total laminectomy (TL) for severe lumbar spinal stenosis. In the second group, 37 patients with the same diagnosis underwent bilateral MDL. The groups were compared for disability, walking distance, degree of postoperative back and leg pain, perioperative complications, and postoperative instability. Radiographic analyses were performed at regular intervals to demonstrate satisfactory decompression. RESULTS: Mean follow-up was 5 years. Postoperative computerized tomography and magnetic resonance imaging demonstrated adequate decompressions in both groups. The walking distance, pain control, and disability scores were slightly higher among patients in the MDL group, although these results did not achieve statistical significance. Perioperative complications and postoperative instability were significantly higher in the TL group (P<0.05). CONCLUSIONS: Compared with classic approaches, bilateral MDL provides adequate and safe decompression in lumbar spinal stenosis. It significantly reduces clinical symptoms and disability. However, TL shows higher perioperative complications and postoperative instability. To the best of our knowledge, this is the first study to define a bilateral MDL approach to treat the stenotic lumbar spine without a herniated disc.

Mitomycin protection of peridural fibrosis in lumbar disc surgery.

OBJECT: In this prospective, randomized clinical study the authors sought to evaluate the effects of locally applied mitomycin C on peridural fibrosis during lumbar microdiscectomy. METHODS: Patients undergoing lumbar disc surgery were randomly divided into 2 groups. Thirty patients had 1 mg/ml mitomycin C applied at the site of discectomy for 5 minutes, and 30 age- and sex-matched patients underwent lumbar microdiscectomy without mitomycin C application as the control group. The groups were compared for degree of postoperative neurological function, radicular/back pain, and degree of peridural fibrosis on MR imaging 6 months after the operation. RESULTS: The median follow-up was 18 months. No serious drug adverse effects and no clinically significant laboratory adverse effects were reported in patients in the mitomycin C group. Patients in both groups showed similar clinical recoveries postoperatively. On postoperative evaluation of the MR images, pain scores, and neurological function, patients given mitomycin C have shown no reduction of peridural fibrosis either clinically or radiographically. CONCLUSIONS: Mitomycin C is easy to use and safe in patients undergoing lumbar microdiscectomy. However, no benefit was observed either clinically or radiographically in this study.

Lumbar facet joint angle and its importance on joint violation in lumbar microdiscectomy.

OBJECTIVE: We investigated facet joint angle at the level of the nucleus pulposus in herniated disks and documented the importance of this angle in preserving articulation and surgical view in patients undergoing lumbar microdiscectomy. METHODS: In this prospective study using pre- and postoperative magnetic resonance imaging scans, two blinded radiologists measured and inspected the facet joint angles in 168 patients. Patients were treated with single-level, unilateral, lumbar microdiscectomy. Postoperatively, patients were divided into two groups according to whether or not any portion of the facet joint had been violated during surgery. Using the magnetic resonance imaging scans, the angles of the facet joints were measured and then correlated with whether or not the facet joint was preserved. RESULTS: The follow-up period for this study was 6 months. Postoperative radicular and back pain during the follow-up period and the need for opioids in the early postsurgery period (48 h) were higher in the nonpreserved group, but these differences were not statistically significant (P > 0.05). If the facet joint angle at the disc was lower than 35 degrees in the horizontal plane, articulation cannot be preserved. However, if this angle is greater than 35 degrees, articulation may be preserved and the surgical view is satisfactory for lumbar microdiscectomy. CONCLUSION: The angle of the lumbar facet joint is important to protect articulation during lumbar microdiscectomy, and violating the facet joint may affect early postoperative pain. A facet angle of less than 35 degrees does not allow for a safe surgical corridor in which to use instruments, nor does it provide a satisfactory view for the surgeon.