Attitudes toward an HPV vaccine for condyloma acuminata and willingness to undergo vaccination among STD clinic attendees in China: Focus on STI prevention with HPV vaccine.

BACKGROUND: Condyloma acuminata (CA) is a common, and recurrent sexually transmitted disease (STD) that greatly contributes to direct health care costs and has a substantial psychosocial impact. Human papillomavirus (HPV) vaccination (containing L1 protein for HPV types 6 and 11) effectively controls CA. OBJECTIVES: We investigated attitudes toward the HPV vaccine for CA and willingness to undergo vaccination among STD clinic attendees in China. METHODS: Attendees at STD clinics at two selected hospitals in Guangdong and Jiangsu Provinces from May to September 2017 were requested to complete a self-administered questionnaire for this cross-sectional study. RESULTS: The participants' median age was 28 years (IQR: 24.0-34.0), and the sex ratio was balanced; 63.5% were from Guangdong, 36.5% were from Jiangsu, and 44.5% had a history of CA. The vaccine acceptance rate was high among the participants (85.8%,235/274) to whom the HPV vaccine for CA was available, especially among those who had heard of CA (89.0%, AOR = 3.14, 95% CI: 1.29-7.63, p = 0.0114). 95 (34.7%) of 274 participants had a positive attitude toward the HPV vaccine for CA. STD clinic attendees who had heard of the connection between HPV and CA (AOR = 2.56, 95% CI: 1.31-5.00, p = 0.0060), had heard of the HPV vaccines or cervical cancer vaccines (AOR = 1.90, 95% CI: 1.02-3.54, p = 0.0444) and had ever proactively discussed CA or the vaccine with others (AOR = 1.95, 95% CI:1.00-3.79, p = 0.0488) had better attitudes toward the HPV vaccine for CA. Over half of the participants (52.5%) expected the price of the HPV vaccine for CA to be under $90. CONCLUSION: The acceptance of the HPV vaccine for CA was high among STD clinic attendees in China, and the participants' self-perceived knowledge of CA and HPV was associated with better attitudes toward the HPV vaccine for CA. Education to improve knowledge is vital for reducing vaccine hesitancy.

A de novo ANK1 mutation associated to hereditary spherocytosis: a case report.

BACKGROUND: Hereditary spherocytosis (HS) is a type of hemolytic anemia caused by abnormal red cell membrane skeletal proteins with few unique clinical manifestations in the neonate and infant. An ANK1 gene mutation is the most common cause of HS. CASE PRESENTATION: The patient was a 11-month-old boy who suffered from anemia and needed a regular transfusion therapy at an interval of 2-3 months. Hematological investigations showed moderate anemia (Hb80 g/L). Red cells displayed microcytosis (MCV76.4 fl, MCH25.6 pg, MCHC335 g/L). The reticulocytes were elevated (4.8%) and the spherocytes were increased (10%). Direct antiglobulin test was negative. Biochemical test indicated a slight elevation of bilirubin, mainly indirect reacting (TBIL32.5 µmol/L, IBIL24 µmol/L). The neonatal HS ratio is 4.38, obviously up the threshold. Meanwhile, a de novo ANK1 mutation (exon 25:c.2693dupC:p.A899Sfs*11) was identified by next-generation sequencing (NGS). Thus, hereditary spherocytosis was finally diagnosed. CONCLUSIONS: Gene detection should be considered in some hemolytic anemia which is difficult to diagnose by routine means. We identified a novel de novo ANK1 heterozygous frameshift mutation in a Yi nationality patient while neither of his parents carried this mutation.

Synergistic enhancement of bone regeneration by LMP-1 and HIF-1α delivered by adipose derived stem cells.

OBJECTIVES: To investigate the effect of the combination of LMP-1 and HIF-1α delivered by adipose-derived stem cells (ADSCs) on osteogenesis in vitro and in vivo. RESULTS: Cells expressing both LMP-1 and HIF-1α genes had elevated mRNA expression of BMP-2, RunX2, alkaline phosphatase, osteocalcin, collagen I and alkaline phosphatase activity compared to cells from other groups. Furthermore, mineralization at day 14 in the cells expressing both LMP-1 and HIF-1α was significantly higher than in all the other groups. In vivo, H&E staining and immunohistochemical analysis of the cell-scaffolds also showed more ectopic bone formation at 4 weeks compared to other groups. More new vessel formation was apparent in the pLVX-rHIF-1α and pLVX-rLMP-1-rHIF-1α groups. CONCLUSION: LMP-1 and HIF-1α gene delivery synergistically enhanced the osteo-differentiation of ADSCs in vitro and promoted osteogenesis in vivo compared with LMP-1 alone or HIF-1α alone.

MicroRNA-23b inhibits enterovirus 71 replication through downregulation of EV71 VPl protein.

Enterovirus 71 (EV71) is one of the causative pathogens of hand-foot-and-mouth disease and effective antiviral agents and vaccines against this virus have, to date, not been available. MicroRNAs (miRNAs) are a recently discovered class of RNAs with the function of post-transcriptional gene expression regulation. It has been demonstrated that miRNAs play important roles in the complicated interaction network between virus and host, while few studies have explored the role of miRNAs in EV71 infection. A recent study showed that hsa-miR-23b was downregulated significantly in cell-infected viruses. To address this issue, biological software miRanda was first used to predict possible target sites of miR-23b at EV71 gene sequence, then to confirm it by luciferase assay. miR-23b mimics were transfected to verify its effects on infection of EV71. These results suggest that miR-23b and upregulation of miR-23b inhibited the replication of EV71 by targeting at EV71 3'UTR conserved sequence. Taken together, miR-23b could inhibit EV71 replication through downregulation of EV71 VPl protein. These results may enhance our understanding on the prevention and treatment of hand-foot-and-mouth disease caused by EV71 infection.

CTLA-4 exon 1 +49A/G polymorphism is associated with renal involvement in pediatric Henoch-Schönlein purpura.

BACKGROUND: Henoch-Schönlein purpura (HSP) is a multisystemic vasculitis of unknown etiology. Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) and CD28 have been reported to be important candidate genes for conferring susceptibility to autoimmunity. In this study, we investigated the correlation of CTLA-4 and CD28 gene polymorphisms with HSP in children with and without renal involvement. METHODS: The CTLA-4 exon 1 +49A/G, promoter -318C/T and CD28 IVS3 +17T/C single nucleotide polymorphisms (SNPs) were genotyped in 110 children with HSP and 90 ethnically matched healthy controls through restriction fragment-length polymorphism (RFLP). RESULTS: The CTLA-4 (+49) GG genotype and G allele (GG + AG genotype) were more common in HSP patients with renal involvement (n = 52) than in HSP patients without renal involvement (n = 58) (P = 0.019 and 0.001, respectively). There were no significant differences in the prevalence of CTLA-4 (+49 A/G), (-318C/T) and CD28 IVS3 (+17 /T/C) polymorphisms between HSP patients and controls. CONCLUSIONS: Our findings suggest that the CTLA-4 +49 GG genotype and G allele may contribute to increased risk for the development of renal damage in HSP patients.

Gene Mutation Spectrum of Thalassemia Among Children in Yunnan Province.

Background: Thalassemia is an autosomal genetic disorder, found throughout the world. It is still not treatable and create socio economic problems. In this study, we investigated the prevalence and spectrum features of thalassemia in Yunnan Province, the southwestern area of China. During 2014-2018, a total of 3,539 suspected thalassemia children were detected with α- and ß-thalassemia mutations by gap-Polymerase Chain Reaction (PCR) and reverse dot blot (RDB) analysis in Kunming Children's Hospital. Results: Of these patients, 1,130 were diagnosed thalassemia gene carriers with a carrying rate of 31.92%. Among them, α-thalassemia was 43.63%, ß-thalassemia was 53.98%, cases with both α- and ß- thalassemia was 2.39%. In α-thalassemia patients, the most common mutations was -SEA/αα (52.13%), followed by -α3.7/αα (27.79%), hemoglobin H disease (18.46%), and -α4.2/αα (1.62%). Fifteen gene mutations and 30 genotypes were identified in ß-thalassemia patients, with the five most common mutations CD17 (A>T) (29.51%), CD41-42 (-TTCT) (27.87%), IVS-II-654 (C>T) (14.92%), CD26 (G>A) (6.89%), and CD26/CD27 (2.62%) accounting for 81.81% of the ß-globin gene mutations. Furthermore, we founded two rare mutations CD34 (TGG → TAG) and Int in Chinese populations. Conclusions: Our results suggested that the prevalence and gene mutation spectrum of thalassemia display obviously heterogeneity among children in Yunnan Province. The findings provide the valuable information for premarital and pre-pregnancy screening, prenatal diagnostic services, and designing appropriate prevention programs to control thalassemia for future in this area.

Correlation of dyslipidemias and gallbladder polyps-A large retrospective study among Chinese population.

OBJECTIVE: Aim to explore the association of dyslipidemias with GBP prevalence, number and size in a large Chinese population in Beijing. Dyslipidemias include hypercholesterolemia, hypertriglyceridemia, increased low density lipoprotein (LDL) and decreased high density lipoproteins (HDL). METHODS: Prevalence of GBP and its association with dyslipidemias were retrospectively investigated among subjects who underwent check-up at Health Screening Center of Xuanwu Hospital between January 2014 and December 2017. RESULTS: This study enrolled 97117 participants. Prevalence of GBP was 7.3%. There were significant differences in increased LDL (595/7107 vs 6004/90010, P = 0.000) and increased cholesterol (TC) (403/7107 vs 4846/90010,P = 0.000) between GBP group and control group, but not in decreased HDL and increased triglyceride (TG). Logistic regression analysis showed that gender, age, BMI, SBP, DBP and LDL were independently associated with GBP. People with increases LDL had 1.488 times higher risk for GBP formation. Trend of dyslipidemias prevalence change according to age was similar with that of GBP. Increased LDL group had higher GBP prevalence rate (9.0% vs 7.2%, p = 0.000), multiple GBP proportion (2.9% vs 2.2%, p = 0.000) and large polyps with diameter ≥ 5 mm proportion (3.7% vs 2.6%,p = 0.000). Comparing with control group, there was higher proportion of large polyps in Increased TC group (3.2% vs 2.7%, p = 0.019) and decreased HDL group (3.0% vs 2.6%,p = 0.028). Increased TG group had not difference with its control group in GBP prevalence, number or size. CONCLUSION: Dyslipidemias is associated with GBP formation. Dyslipidemias change according to age is consistent with GBP prevalence. Increased LDL was a more related risk factor rather than decreased HDL, increased TC or TG.

Randomized controlled trial of 3 days fasting and oral senna, combined with mannitol and simethicone, before capsule endoscopy.

BACKGROUND AND STUDY AIMS: The approach to small bowel preparation before capsule endoscopy (CE) is still suboptimal. PATIENTS AND METHODS: One hundred eighty patients were randomly allocated to 3 groups. Patients in Group A took 250 mL 20% mannitol and 1 L 0.9% saline orally at 05:00 hours on the day of the procedure. In Group B the same preparation was taken at 20:00 on the day before, and at 05:00 on the day of CE; in addition, 20 mL oral simethicone was taken 30 minutes before CE. Group C was treated identically to Group B, except that the patients fasted for 3 days and took 3 g senna orally 3 times daily before CE. The length of bowel containing green luminal contents was assessed by ImageJ software and bowel cleanliness was evaluated by computed assessment of the cleansing score. RESULTS: Cleansing of the whole small bowel and the distal small bowel were significantly different between the 3 groups (χ = 22.470, P = .000; χ = 17.029, P = .000, respectively). There were also significant differences between the 3 groups in the length of small bowel and specifically the length of the distal small bowel containing green luminal contents (χ = 12.390, P = .000, χ = 15.141, P = .000, respectively), but not with regard to the proximal small bowel (χ = 0.678, P = .509). CONCLUSIONS: Three days fasting and oral senna, combined with 20% mannitol and simethicone, before CE, can reduce the effects of bile on the small bowel and improve small bowel cleansing, especially in the distal small intestine.

[Current opinions in therapeutics of advanced laryngeal carcinoma].

The treatment of advanced laryngeal cancer constitutes a constant challenge to surgeons. Although various therapeutic modalities have been employed in the past century, the cure rate remains unsatisfactory. Current opinions in the therapeutics of this disease pay more attention to the preservation of larynx function and the improvement of quality of life. It is practical to improve the survival rate and quality of life by upgrading the conservative surgical techniques and radiotherapy tactics, neo-adjuvant therapies, and especially the combined treatment using concurrent chemoradiotherapy.

[Prospective cohort study on prevention of Frey syndrome in parotid surgery].

OBJECTIVE: To investigate the prevention of Frey syndrome after parotidectomy. METHODS: A prospective cohort study of 100 patients with parotid cancer who received parotid surgery was underwent in our hospital from 2001 to 2004. These patients were assigned to two groups, study group (50 cases) and control group (50 cases). The patients in the study group received parotidectomy and intraoperative placement of collagen pieces within the parotid bed, between the skin flap and the facial nerve. The patients in the control group received a conventional parotidectomy and no collagen pieces was implanted. All of the patients were followed-up and were evaluated for Frey syndrome with identical questionnaires. RESULTS: Compared with control group, the incidence rate of Frey syndrome was significantly decreased in the study group (20% vs 60%, chi(2) = 15.04, P < 0.001). Postoperative incidence of facial contour apparent deformity was 80% (40/50) in control group and 44% (22/50) in study group (chi(2) = 12.26, P < 0.001). CONCLUSIONS: Use of collagen pieces as an interposition fill barrier improves parotidectomy outcome by reducing the incidence of Frey syndrome, and it improves cosmetic results concurrently.

[Reconstruction with free jejunal interposition for defect after tumor resection of hypopharyngeal and cervical esophageal cancer].

OBJECTIVE: To discuss the use of free jejunal flap in reconstruction for circumferential defect after tumor resection of hypopharyngeal and cervical esophageal cancer. METHODS: Retrospective review of 51 patients who underwent circumferential pharyngoesophageal reconstruction with free jejunal flap after tumor ablation. RESULTS: In 51 patients, 5 had flap failure and the flap success rate was 90% (46/51). Forty-five patients had oral intake after operation excluding one who had anastomosis stenosis and 5 who had flap failure. The 1-year and 3-year survival rate was 62% and 48% respectively. Positive surgical marginal status and external invasion including thyroid gland, carotid artery, skin and pre-vertebral area were indicators for bad prognosis. Except 5 patients who had flap failure, one of which died from mediastinal infection, no other severe complications occurred. CONCLUSIONS: Patients reconstructed with free jejunal flap after resection of hypopharyngeal and cervical esophageal cancer had low mortality and few complications. Those without positive surgical margin and external invasion including thyroid gland, carotid artery, skin and pre-vertebral area had higher survival rate. Most of them had good quality of life. The choice of free jejunal flap for reconstruction of hypopharyngoesophageal defect was appropriate in selected patients who had guarantee of negative surgical margin and no external invasion.

Exploring the use of NIR reflectance spectroscopy in prediction of free L-Asparagine in solanaceae plants.

Much researches of Near-infrared spectroscopy modeling methods that are utilized to analyze the trace amount components, especially indirect modeling on complex system, have gained widely attraction in recent years. Amino acids in plants are essential nutrients of maintaining growth and ensuring health. As the important participants in various biochemical reactions in plants, nondestructive detection of free amino acids will provide meaningful observation on physiological changing in different steps of plant growth. In this research, two hundred and twenty-two samples were measured to obtain the concentration of free L-Asparagine in plant by amino acid analyzer. NIR spectra were also collected for conducting chemometrics modeling. Different spectral pretreatments and variables selecting methods were employed to optimize the NIR models. Independent validation set as well as unknown samples from different years were successfully predicted by using the slope intercept correction. Results in this study demonstrated that fast analysis of free L-Asparagine can be established by NIR modeling approach.

Randomized controlled trial of cholestyramine and hydrotalcite to eliminate bile for capsule endoscopy.

BACKGROUND/AIMS: Bile is the main cause of poor bowel preparation for capsule endoscopy (CE). We aimed to determine whether cholestyramine and hydrotalcite can eliminate bile in the bowel. PATIENTS AND METHODS: Patients undergoing CE were randomized into two groups. Group A patients (n = 75) received 250 mL 20% mannitol and 1 L 0.9% saline orally at 20:00 hours on the day before and at 05:00 hours on the day of CE and 20 mL simethicone 30 min before CE. Group B patients (n = 73) were treated identically, except for taking oral cholestyramine and hydrotalcite, starting 3 days before CE. Greenish luminal contents were assessed by four tissue color bar segments using Color Area Statistics software. Bowel cleanliness was evaluated by visualized area percentage assessment of cleansing (AAC) score. RESULT: Bowel cleanliness (82.7% [62/75] vs 46.6% [34/73]; χ2 = 14.596, P = 0.000). and detected greenish luminal contents (20.0% [15/75] vs 8.2% [6/73]; χ2 = 4.217, P = 0.040) were significantly greater in Group A than in Group B. Greenish luminal contents in the two groups differed significantly in the captured small-bowel (t = -13.74, P = 0.000) segments and proximal small-bowel (t = -0.7365, P = 0.000) segments, but not for the distal small-bowel (t = -0.552, P = 0.581) segments. CONCLUSIONS: Cholestyramine and hydrotalcite were ineffective in eliminating bile and improving small-bowel preparation.

Survival Outcome of Squamous Cell Carcinoma Arising from Sinonasal Inverted Papilloma.

BACKGROUND: Sinonasal inverted papilloma (IP) is a rare benign tumor of the nasal cavities and paranasal sinuses. It is destructive or bone-remodeling, tends to recur after surgical resection, and has a significant malignant potential. The present study aimed to perform a retrospective analysis of patients with squamous cell carcinoma (SCC) arising from IP, including characteristics, survival outcome, and predictors of associated malignancy. METHODS: The medical records of 213 patients diagnosed with IP from January 1970 to January 2014 were retrospectively reviewed. Eighty-seven patients were diagnosed with SCC/IP; their clinical characteristics, treatments, and survival outcomes were analyzed. RESULTS: Of the 87 patients with SCC/IP, the 5- and 10-year overall survival outcomes were 39.6% and 31.8%, respectively. Twenty-nine of these patients received surgery and 58 received combined surgery and radiation. Of the patients with stages III-IV, the 5-year survival rate was 30.7% for those treated with surgery only and 39.9% for those given the combination treatment (P = 0.849). Factors associated with significantly poor prognosis were advanced-stage, metachronous tumors, or with cranial base and orbit invasion. Age, synchronous or metachronous tumors, and pathological stage were independent risk factors for mortality, shown by multivariate analysis. CONCLUSION: Patients with SCC/IP had low overall survival outcomes. Advanced age, stage, and metachronous tumors are the main factors affecting prognosis. Treatment planning should consider high-risk factors to improve survival outcome.

The implantation of a Nickel-Titanium shape memory alloy ameliorates vertebral body compression fractures: a cadaveric study.

OBJECTIVE: To evaluate the effect of a Nickel-Titanium (Ni-Ti) shape memory alloy in the treatment of vertebral body compression fractures. METHODS: The experimental thoracic-lumbar fracture units were made with adult human fresh-frozen vertebral specimens. A total of 30 fresh-frozen vertebral units were randomly assigned to 3 experimental groups: control group, percutaneous kyphoplasty group (PKP group), and percutaneous Ni-Ti shape memory alloys implant group (Ni-Ti implant group). Vertebral height and ultimate compression load of the vertebral body before and after procedures were measured to determine the restoration of vertebral heights and compressive strength, respectively. RESULTS: The Ni-Ti implant group achieved a vertebrae endplate reduction effect comparable to the PKP group. The vertebral height of the PKP group was restored from 2.01±0.21 cm to 2.27±0.18 cm after procedure, whereas that of the Ni-Ti implant group was restored from 2.00±0.18 cm to 2.31±0.17 cm. The ultimate loads of the vertebrae body of the PKP and the Ni-Ti implant groups were 2880.75±126.17 N and 2888.00±144.69 N, respectively, both of which were statistically significantly higher than that of the control group (2017.17±163.71 N). There was no significant difference in ultimate compression load of vertebrae body between the Ni-Ti implant and PKP groups. CONCLUSIONS: The implantation of Ni-Ti shape memory alloys of vertebral body induced effective endplate reduction, restored vertebral height, and provided immediate biomechanical spinal stability.

Laryngeal reconstruction with a sternohyoid muscle flap after supracricoid laryngectomy: postoperative respiratory and swallowing evaluation.

OBJECTIVE: To compare postoperative respiratory and swallowing functions between patients who underwent classic supracricoid laryngectomy (SCL) and those who underwent SCL with laryngeal reconstruction using the sternohyoid muscle. STUDY DESIGN: Prospective study. SETTING: National cancer center. SUBJECTS AND METHODS: Forty-four patients who consecutively underwent SCL for laryngeal squamous cell carcinoma from December 2009 to March 2011 were included. Postoperative parameters including the mean tracheostomy decannulation time, tracheostomy decannulation rate at 6 months, mean nasogastric tube (NGT) removal time, degree of dysphagia at 3 months, and survival time after surgery were evaluated. RESULTS: Twenty-one patients underwent classic SCL (group A), and 23 underwent SCL with laryngeal reconstruction (group B). After a median follow-up period of 37 months (range, 3-44 months), group A had a significantly longer mean decannulation time (120.05 ± 109.38 days vs 33.43 ± 22.60 days, respectively; P < .01) and NGT removal time (37.30 ± 29.97 days vs 17.22 ± 10.95 days, respectively; P < .01) than group B. Swallowing function after 6 months was significantly better in group B than in group A (P = .004). The decannulation rate after 6 months was significantly higher in group B than in group A (95.7% vs 66.7%, respectively; P = .036). The 3-year disease-free survival rate was not significantly different between group A and group B (95.2% vs 95.7%, respectively; P = .961). CONCLUSION: Laryngeal reconstruction using a sternohyoid muscle flap seems to improve quality of life in the early postoperative period after SCL.

[Primary squamous cell carcinoma of the thyroid: retrospective analysis of 28 cases].

OBJECTIVE: To investigate the clinicopathological features, treatment outcomes and prognosis of patients with squamous cell carcinoma of the thyroid (SCCT). METHODS: Retrospective review of SCCT cases in our hospital from January 1999 to May 2012. Demographic data and clinical charts, including presenting symptoms, histologic grade of tumor, treatment, and outcome of 28 consecutive patients were obtained. Survival rates and prognostic factors were calculated with SPSS 13.0 software using the Kaplan-Meier method and multivariate Cox model survival analysis. RESULTS: SCCT accounted for only 0.36% of all types of thyroid malignancy. There were 15 males and 13 females, and the median age was 63 years. The presenting symptoms were neck masses (26/28) and hoarse voice (18/28). The 28 SCCTs included 15 high grade tumors, eight intermediate grade tumors and five low grade tumors. According to the UICC 2002 staging criteria, 16 patients were stage IVa, and 12 were stage IVb. Of the 28 patients, 19 underwent surgery plus postoperative radiotherapy, seven underwent surgery alone, and two received radiotherapy alone. The rates of lymph node metastasis and distant metastasis were 60.7% and 25.0%, respectively. The 1-year, 2-year and 5-year overall survival (OS) rate were 50.4%, 25.8% and 19.3%, respectively, and the median overall survival time was 12.2 months. Kaplan-Meier univariate survival analyses indicated that the sizes of the tumors, esophageal invasions and treatment policies are prognostic factors, and multivariate Cox model survival analyses confirmed that the sizes of the tumors and treatment policies were independent factors for OS. Multivariate survival analyses confirmed that the sizes of the tumors and treatment policies were independent factors for OS. CONCLUSIONS: SCCT is a rare malignant tumor with strong invasive ability, high malignancy and poor prognosis. Combined modality therapy was strongly recommended, and surgical resection plus postoperative radiotherapy may be the main treatment protocol for patients with SCCT.

Evaluation of visualized area percentage assessment of cleansing score and computed assessment of cleansing score for capsule endoscopy.

BACKGROUND/AIM: The purpose of this study was to evaluate the clinical significance of visualized area percentage assessment of cleansing score (AAC) and computed assessment of cleansing score (CAC) of these two small bowel cleanliness scores systems for capsule endoscopy (CE). MATERIALS AND METHODS: The reliability and consistency of the AAC and CAC scores were evaluated by comparing the scores by two examiners (one expert, one without any training in CE). Reliability was determined using the intraclass correlation coefficient (ICC) and consistency was determined using the kappa statistic. RESULTS: The inter-observer agreement was excellent for both the AAC and CAC scores. For AAC, the ICC was 0.791 (95% confidence interval: 0.677-0.868), and for CAC the ICC was 1.000. Using 1.5 as the cutoff, there was no significant difference between AAC and CAC results by the expert examiner (kappa = 0.756, P = 0.000) or the non-expert examiner (kappa = 0.831, P = 0.000). Evaluation of small bowel cleanliness using AAC took 15-30 min, and evaluation using CAC took about 2-3 min. The overall adequacy assessment (OAA) using the AAC was not significantly different between the two examiners (χ2 = 0.586, P = 0.444). There were also no significant differences between the OAA using the AAC and the OAA using the CAC by the expert examiner (χ2 = 1.730, P = 0.188) or the non-expert examiner (χ2 = 1.124, P = 0.289). CONCLUSION: Both of these scores for assessment of small bowel cleanliness can be useful in clinical practice, but the CAC is simpler to use.

Surgical management of parapharyngeal lymph node metastasis of thyroid carcinoma: a retrospective study of 25 patients.

BACKGROUND: Parapharyngeal lymph node (PPLN) metastasis from thyroid carcinoma is rare. We describe the clinical features, diagnosis, and surgical treatment of this condition. METHODS: Twenty-five patients with PPLN metastasis from thyroid carcinoma were treated at our institution from January 1999 to December 2010, including 22 patients with papillary carcinoma, two with medullary carcinoma, and one with follicular carcinoma. Of these, 16 had a history of surgical treatment prior to PPLN metastasis. Of the nine patients without a history of surgical treatment, five had widespread cervical lymph node metastases and four had occult papillary thyroid carcinoma. PPLN metastasis was diagnosed by enhanced computed tomography in 22 cases. RESULTS: Resection of metastases was performed via a transcervical approach in 23 patients and a transmandibular approach in two patients. After a median follow-up time of 31 months (range: 6 - 130 months), nine patients developed distant metastases, and six of these died of their disease. The 5-year survival rate was 63.8%. CONCLUSIONS: PPLN metastasis from thyroid carcinoma may occur in patients: with previous neck dissection, with widespread metastases to cervical lymph nodes prior to initial treatment, and with occult thyroid carcinoma. Enhanced computed tomography is helpful for diagnosis in the first two presentations. Surgical resection remains the mainstay of treatment for this disease. PPLN metastasis has a tendency to be associated with distant metastases and a poor prognosis.