Pregnancy rate after emergency contraception with single-dose oral levonorgestrel in Japanese women.

AIM: To evaluate the pregnancy rate in Japanese women treated with levonorgestrel for emergency contraception. METHODS: This retrospective record-based medical study included 1000 women who visited our clinic for emergency contraceptive treatment with 1.5 mg single-dose oral levonorgestrel, followed by 50 µg hormonal oral contraceptive from May 2011 to December 2017. The outcomes of the emergency contraceptive treatment were recorded at a follow-up visit, and descriptive statistics were obtained. RESULTS: The number of women treated with levonorgestrel at the clinic increased from 2011 to 2015, but there was no subsequent increase thereafter. Most women were in their 20s (57.4%), followed by their 30s (19.3%) and teens (18.3%). Of the 1000 women treated with levonorgestrel, 659 were followed up. Among the 659 women with follow-up data, 16 were pregnant (2.4%), of whom 11 underwent abortions, three had miscarriages, and two delivered at term. The timing of unprotected sexual intercourse relative to the estimated ovulation date among the pregnant women ranged from -3 to 23 days. The most commonly used contraceptive method before the emergency contraceptive visit was condoms (89.3%, 887/993). No new safety concerns were identified throughout the study period. CONCLUSION: The pregnancy rate after levonorgestrel treatment in Japanese women was low, and similar to that reported in previous studies. Information on contraceptive methods and emergency contraception with levonorgestrel needs to be better disseminated among women of childbearing age.

Soluble (Pro)renin Receptor and Obstructive Sleep Apnea Syndrome: Oxidative Stress in Brain?

(Pro)renin receptor ((P)RR) is a multi-functional molecule that is related to both the renin-angiotensin system (RAS) and vacuolar H⁺-ATPase (v-ATPase), an ATP-dependent multi-subunit proton pump. Soluble (P)RR (s(P)RR), which consists of the extracellular domain of (P)RR, is present in blood and urine. Elevated plasma s(P)RR concentrations are reported in patients with chronic kidney disease and pregnant women with hypertension or diabetes mellitus. In addition, we have shown that plasma s(P)RR concentrations are elevated in patients with obstructive sleep apnea syndrome (OSAS). Interestingly, the levels are elevated in parallel with the severity of OSAS, but are not related to the presence of hypertension or the status of the circulating RAS in OSAS. It is known that v-ATPase activity protects cells from endogenous oxidative stress, and loss of v-ATPase activity results in chronic oxidative stress. We hypothesize that hypoxia and subsequent oxidative stress, perhaps in the brain, may be one of the factors that elevate plasma s(P)RR levels in OSAS.

Elevated Plasma Levels of Soluble (Pro)Renin Receptor in Patients with Obstructive Sleep Apnea Syndrome in Parallel with the Disease Severity.

(Pro)renin receptor ((P)RR), a receptor for renin and prorenin, is implicated in the pathophysiology of diabetes mellitus, hypertension and their complications. Soluble (P)RR (s(P)RR) is composed of extracellular domain of (P)RR and thus exists in blood. We have reported that plasma concentrations of s(P)RR were elevated in male patients with obstructive sleep apnea syndrome (OSAS). The aim of the present study was to clarify the difference in plasma s(P)RR concentrations between male and female OSAS patients. Plasma s(P)RR concentrations were studied in 289 subjects (206 males and 83 females) consisting of 259 OSAS patients and 30 non-OSAS control subjects. The 259 OSAS patients were classified into mild (5 ≤ apnea hypopnea index (AHI) < 15 events/h), moderate (15 ≤ AHI < 30), and severe OSAS (AHI ≥ 30). Plasma s(P)RR levels were significantly elevated in all three OSAS groups compared to non-OSAS control subjects (AHI < 5) in the entire cohort and male subjects, whereas in female subjects, the significant elevation was found only in severe OSAS. Plasma s(P)RR levels were significantly correlated with AHI in both sexes, with a higher r value found in male subjects (male r = 0.413, p < 0.0001; female r = 0.263, p < 0.05). Importantly, when OSAS patients (26 males and 15 females) with AHI ≥ 20 underwent continuous positive airway pressure treatment, plasma s(P)RR levels were significantly decreased. In conclusion, plasma s(P)RR levels are elevated in both male and female OSAS patients in parallel with the disease severity.

[Epidemiological Survey of the Extended-spectrum ß-lactamase-producing Bacteria in Hospitals and Nursing Homes in Morioka Secondary Medical Area Zone of Iwate Prefecture].

The spread of ESBL-producing bacteria (ESBLs) in local communities is a crucially important issue related to infection control. We investigated the relevance of isolation of ESBLs and the risk factors influencing the isolation rates of these organisms at medical facilities (4 rural hospitals, A-D; 4 nursing homes, a-d) located in the Morioka medical area. The isolation rates of ESBLs at 4 hospitals were estimated from the patient medical records from April 2013 to March 2014. Also, ESBLs were isolated from stool samples from residents in 4 nursing homes during almost the same period, and were analyzed to ascertain their genotypes. Furthermore, we compared the isolation rates of ESBLs among four hospitals to determine the influence of use of third-generation cephalosporins and alcohol-based hand rubs, and also among four nursing homes to identify the clinical backgrounds of the nursing home residents influencing the isolation rates. The isolation rates of ESBLs in hospitals and nursing homes were 13.3% (3.6-25.0%) and 9.3% (3.4-21.0%), respectively. Hospital B, which had the highest isolation rate of ESBLs, showed the highest rate of use of third-generation cephalosporins. On the other hand, Hospital A, with a lower isolation rate of ESBLs, showed the highest frequency of use of alcohol rubs. The rate of use of enteral nutrition was significantly higher in the nursing homes with higher isolation rate of ESBLs than those with lower isolation rates (odds ratio 2.71, p < 0.05). Nursing home c, with a significantly higher isolation rate of ESBLs, showed higher usage of adult diapers as well as higher rates of residents with recent hospitalization and high-level care. All ESBLs (13 Escherichia coli) isolated from nursing home c showed the same genotype: CTX-M-3. Although numerous ESBLs were isolated from the hospitals and nursing homes investigated in this study, the isolation rates of ESBLs and the clinical backgrounds of the patients differed greatly among the medical facilities in the same area. Furthermore, as patients and residents were transferred reciprocally among the hospitals and nursing homes, it was suggested that infection control for ESBLs at any individual facility alone was not sufficient and also that cooperative education and information sharing on ESBLs among facilities in the same area might be important.

Successful redo open thoracoabdominal aortic aneurysm surgery in a patient with vascular Ehlers-Danlos syndrome: A case report.

We report a case of a 63-year-old woman diagnosed with vascular Ehlers-Danlos syndrome (vEDS) who survived two prophylactic surgeries for the dilatation of a thoracoabdominal aortic aneurysm. She initially developed acute type B aortic dissection at the age of 44 years. Five years later, her dissected descending aorta was enlarged to 54 mm; thus, the descending aorta was replaced as the first surgery. Fortunately, the intra- and post-operative courses were uneventful. Fourteen years post her first surgery, the dissected thoracoabdominal aorta distal to the graft expanded to 53 mm; however, no anastomotic leakage was observed. Genetic testing revealed a COL3A1 abnormality, confirming the diagnosis of vEDS. Thoracoabdominal aorta replacement using deep hypothermia circulatory arrest was performed because of the high risk of aortic aneurysm rupture. The second surgery was performed without complications, and no complications were observed 13 months post-surgery. The major reason for a successful surgery in this patient was the relatively low vascular fragility associated with vEDS. This case demonstrates that there may be considerable individual differences in vascular fragility in patients with vEDS. Thus, surgical repair, along with endovascular therapy, might still be a beneficial option for patients with vEDS having large aortic aneurysms and a high risk of rupture. Learning objective: Prophylactic surgery for vascular lesions in Ehlers-Danlos syndrome (vEDS) is generally not recommended because of its high vascular fragility. However, if a patient with vEDS has an aortic aneurysm that is at a very high risk of rupture, aggressive treatment is a plausible option as there may be considerable individual differences in vascular fragility among patients with vEDS.

Clinical significance of integrin αV and ß superfamily members and focal adhesion kinase activity in oral squamous cell carcinoma: a retrospective observational study.

Objectives: Integrins are heterodimeric transmembrane plasma membrane proteins composed of α- and ß-chains. They bind to extracellular matrix (ECM) and cytoskeletal proteins as ECM protein receptors. Upon ECM protein binding, integrins activate focal adhesion kinase (FAK) and transduce various signals. Despite their importance, integrin and FAK expression in oral squamous cell carcinoma (OSCC) tissue and the prognosis of patients with OSCC remains elusive. Methods: In a retrospective observational study, we immunohistochemically evaluated integrin αV, ß1, ß3, ß5, ß6, FAK, and phosphorylated-FAK (pFAK) expressions as prognostic predictors in 96 patients with OSCC. Patients were classified as positive or negative based on staining intensity, and clinicopathologic characteristics and survival rates of the two groups were compared. The association between above integrin-related proteins and PD-1 or PD-L1 in OSCC tissues was investigated. Results: We observed immunohistochemical integrin αV, ß1, ß6, ß8, and FAK expressions in the cell membrane and cytoplasm but not integrin ß3 and ß5 in the OSCC tissues. pFAK was expressed in the cytoplasm of OSCC cells. The overall survival rate significantly decreased in pFAK-positive OSCC patients compared to the negative group, and cervical lymph node metastasis significantly increased in integrin ß8-positive patients with OSCC (p < 0.05). No association between integrin-related proteins and PD-1 or PD-L1 in OSCC tissues was observed. Conclusion: Our results indicate that pFAK and integrin ß8 are prognostic factors for OSCC. Therefore, pFAK- and integrin ß8-targeting new oral cancer diagnostic and therapeutic methods hold a promising potential.

Effects of CPAP treatment interruption due to disasters: patients with sleep-disordered breathing in the Great East Japan Earthquake and tsunami area.

INTRODUCTION: The 2011 Great East Japan Earthquake caused major disruptions in the provision of health care, including that for patients with sleep-disordered breathing (SDB) using a nasal continuous positive airway pressure (nCPAP) device. This study investigated the ability of SDB patients to continue using the nCPAP device in the weeks immediately following the earthquake, whether inability to use the nCPAP device led to symptom relapse, and measures that should be taken to prevent disruptions in nCPAP therapy during future disasters. Hypothesis If nCPAP devices cannot be used during disasters, SDB patients' health will be affected negatively. METHODS: Within 14 days of the disaster, 1,047 SDB patients completed a questionnaire that collected data regarding ability to use, duration of inability to use, and reasons for inability to use the nCPAP device; symptom relapse while unable to use the nCPAP device; ability to use the nCPAP device use at evacuation sites; and recommendations for improvement of the nCPAP device. RESULTS: Of the 1,047 patients, 966 (92.3%) had been unable to use the nCPAP device in the days immediately following the earthquake. The most common reason for inability to use the nCPAP device was power failure, followed by anxiety about sleeping at night due to fear of aftershocks, involvement in disaster-relief activities, loss of the nasal CPAP device, and fear of being unable to wake up in case of an emergency. Among the 966 patients, 242 (25.1%) had experienced relapse of symptoms, the most common of which was excessive daytime sleepiness (EDS), followed by insomnia, headache, irritability, and chest pain. CONCLUSION: Developing strategies for the continuation of nCPAP therapy during disasters is important for providing healthy sleeping environments for SDB patients in emergency situations.

Interaction of Integrin αvß8 With Type I Collagen Promotes Squamous Cell Carcinoma Cell Motility via RAC1 Activation.

BACKGROUND/AIM: The interaction of integrin αvß8 with type I collagen was shown to promote oral squamous cell carcinoma (SCC) cell proliferation via the mitogen-activated protein kinase/extracellular signal-regulated kinase pathway. However, the role of integrin αvß8 in SCC progression remains poorly understood. In this study, the role of integrin αvß8 in oral SCC progression was therefore investigated. MATERIALS AND METHODS: Integrin αv and ß8 protein expression in oral SCC cells was examined by western blotting. Oral SCC cell motility was investigated using modified Boyden chamber assays. Behavior of oral SCC cells was examined in three-dimensional culture using type I collagen gel. Ras homolog family member A (RHOA), Ras-related C3 botulinum toxin substrate 1 (RAC1), and cell division control protein 42 homolog (CDC42) activity of oral SCC cells was analyzed by pull-down assays. RESULTS: SCC cells with high integrin αvß8 expression levels had a high ability to migrate on type I collagen and exhibited enhanced invasion into type I collagen gel. In SCC cells with high integrin αvß8 expression level, cultivation on type I collagen induced RAC1 activation. Treatment with RAC1 inhibitor reduced type I collagen-induced motility of SCC cells. Down-regulation of integrin ß8 by specific antisense oligonucleotide reduced type I collagen-induced RAC1 activation and suppressed cell motility and invasion into type I collagen gel. CONCLUSION: The interaction of integrin αvß8 with type I collagen facilitates SCC cell motility and invasion via RAC1 activation. Therefore, integrin αvß8 and RAC1 may represent new targets for inhibiting metastasis and invasion in patients with oral SCC.

Therapeutic effect of laparoscopic sleeve gastrectomy on obstructive sleep apnea and relationship of type 2 diabetes in Japanese patients with severe obesity.

AIMS/INTRODUCTION: Obstructive sleep apnea (OSA) is among the most important obesity-related diseases, and offers the potential for accelerated the early onset and progression of type 2 diabetes. The aim of the present study was to clarify the therapeutic effect of laparoscopic sleeve gastrectomy on OSA in severely obese Japanese patients, and to find correlations between OSA improvements and ß-cell function (BCF). MATERIALS AND METHODS: Between September 2013 and December 2019, 61 patients who underwent laparoscopic sleeve gastrectomy were enrolled. The apnea-hypopnea index (AHI) was used to diagnose OSA. The tongue area, uvula area and other parameters were measured using cone-beam computed tomography. Regarding BCF parameters, the homeostasis model assessment of ß-cell function, insulinogenic, Matsuda and disposition indexes were used to evaluate the improvement in BCF. Improvement of OSA was defined as AHI <15. RESULTS: The improvement rate of OSA was 51.8% (29/56). The change in AHI was significantly correlated with the excess weight loss percentage (ρ = 0.501), changes in tongue area (ρ = 0.350) and uvula area (ρ = 0.341). Multivariate analysis showed that preoperative AHI and postoperative hemoglobin A1c were independent prognostic factors of OSA non-improvement. The homeostasis model assessment of ß-cell function (P < 0.001), the insulinogenic index (P < 0.001) and the disposition index (P = 0.019) of patients with AHI of <15 were significantly higher than those in patients with AHI of ≥15. CONCLUSIONS: Laparoscopic sleeve gastrectomy is a promising procedure for severely obese patients with OSA. BCF recovery was found to be significantly higher in patients with OSA improvement.

Descending thoracic aortic repair outcomes for chronic aortic dissection: a single-centre experience.

OBJECTIVES: Thoracic endovascular aortic repair is a widely accepted treatment for chronic aortic dissection because of good early results compared to open surgical repair. We provide early and long-term results of descending thoracic aortic repair for chronic aortic dissection. METHODS: Patients who underwent descending thoracic aortic repair for chronic aortic dissection between January 2012 and December 2020 at Kawasaki Aortic Centre were included in this analysis. RESULTS: Four hundred ninety-two patients (median age, 64 years; interquartile range, 52-75 years) were included. The median duration of follow-up was 3.2 years (interquartile range, 1.5-5.2 years). The early mortality rate was 2.0% (n = 10); strokes occurred in 17 patients (3.5%); and spinal cord injuries occurred in 30 patients (6.1%). Early major adverse events including early death, stroke, spinal cord injury, tracheostomy and haemodialysis at the time of discharge occurred in 62 patients. Multivariable analysis indicated that age > 70 years and non-elective surgery were predictors of early major adverse events. Among patients without both risk factors (i.e. low-risk patients), 1 early death (0.4%), 3 strokes (1.5%) and 1 spinal cord injury (0.4%) were observed, 2 tracheostomies were performed (0.8%) and no patients required haemodialysis at the time of hospital discharge. The 5-year survival rate was 87.2%. The cumulative incidence of chronic aortic dissection-related aortic reintervention at 5 years was 7.9%. CONCLUSIONS: Descending thoracic aortic repair for chronic aortic dissection resulted in good early and long-term results, and it can serve as the gold standard for low-risk patients.

Sleep Apnea Syndrome (SAS) Clinical Practice Guidelines 2020.

The prevalence of sleep disordered breathing (SDB) is reportedly very high. Among SDBs, the incidence of obstructive sleep apnea (OSA) is higher than previously believed, with patients having moderate-to-severe OSA accounting for approximately 20% of adult males and 10% of postmenopausal women not only in Western countries but also in Eastern countries, including Japan. Since 1998, when health insurance coverage became available, the number of patients using continuous positive airway pressure (CPAP) therapy for sleep apnea has increased sharply, with the number of patients about to exceed 500,000 in Japan. Although the "Guidelines for Diagnosis and Treatment of Sleep Apnea Syndrome (SAS) in Adults" was published in 2005, a new guideline was prepared in order to indicate the standard medical care based on the latest trends, as supervised by and in cooperation with the Japanese Respiratory Society and the "Survey and Research on Refractory Respiratory Diseases and Pulmonary Hypertension" Group, of Ministry of Health, Labor and Welfare and other related academic societies, including the Japanese Society of Sleep Research, in addition to referring to the previous guidelines. Because sleep apnea is an interdisciplinary field covering many areas, this guideline was prepared including 36 clinical questions (CQs). In the English version, therapies and managements for SAS, which were written from CQ16 to 36, were shown. The Japanese version was published in July 2020 and permitted as well as published as one of the Medical Information Network Distribution Service (Minds) clinical practice guidelines in Japan in July 2021.

Sleep Apnea Syndrome (SAS) Clinical Practice Guidelines 2020.

The prevalence of sleep-disordered breathing (SDB) is reportedly very high. Among SDBs, the incidence of obstructive sleep apnea (OSA) is higher than previously believed, with patients having moderate-to-severe OSA accounting for approximately 20% of adult males and 10% of postmenopausal women not only in Western countries but also in Eastern countries, including Japan. Since 1998, when health insurance coverage became available, the number of patients using continuous positive airway pressure (CPAP) therapy for sleep apnea has increased sharply, with the number of patients about to exceed 500,000 in Japan. Although the "Guidelines for Diagnosis and Treatment of Sleep Apnea Syndrome (SAS) in Adults" was published in 2005, a new guideline was prepared to indicate the standard medical care based on the latest trends, as supervised by and in cooperation with the Japanese Respiratory Society and the "Survey and Research on Refractory Respiratory Diseases and Pulmonary Hypertension" Group, of Ministry of Health, Labor and Welfare and other related academic societies, including the Japanese Society of Sleep Research, in addition to referring to the previous guidelines. Since sleep apnea is an interdisciplinary field covering many areas, this guideline was prepared including 36 clinical questions (CQs). In the English version, therapies and managements for SAS, which were written from CQ16 to 36, were shown. The Japanese version was published in July 2020 and permitted as well as published as one of the Medical Information Network Distribution Service (Minds) clinical practice guidelines in Japan in July 2021.

Left Ventricular Hypertrophy Is More Prevalent in Type B than Type A Aortic Dissection.

OBJECTIVES: Several factors determining differences between types A and B aortic dissection (AD) have been reported; however, little data exist examining their differences in left ventricular hypertrophy (LVH). We compared the prevalence of LVH in patients with types A and B AD. METHODS: We retrospectively analyzed 334 patients with acute AD (227 type A; 107 type B). Concentric hypertrophy (CH; increased left ventricular mass index [LVMI] and relative wall thickness [RWT]) is one of four types of left ventricular (LV) geometry thought to be most associated with hypertension. We compared LVMI and the prevalence of CH in patients with types A or B AD. Multivariate logistic regression analyses of variables associated with type B AD were performed. RESULTS: Comparing type A and B AD, LVMI (95 ± 26 vs.107 ± 28, p <0.001) and prevalence of CH (26% vs. 44%, p = 0.001) were higher in type B AD. In multivariate analysis, CH was an independent factor associated with type B AD (odds ratio: 2.62, confidence interval: 1.54-4.47, p <0.001). CONCLUSIONS: Our data suggested LVH was more prevalent in type B than in type A AD. Considering LVH usually results from hypertension, patients with type B AD may be more affected by hypertension than those with type A.

False-positive cases in multiple sleep latency test by accumulated sleep debt.

PURPOSE: Multiple sleep latency test (MSLT) is performed as objective assessment of sleepiness, on the following day after polysomnography (PSG). In most clinics, patients are required to stay for 2 days. However, if patients have chronic sleep debt before the examination, even if they get adequate nocturnal sleep during the initial PSG, their sleep debt would not be fully resolved, affecting MSLT results. This may lead to improper administration of psycho-stimulant medication. To clarify the sleep debt for the patients who showed short sleep latencies, we compared the mean sleep latencies of MSLTs. METHODS: Twelve hypersomnolent males, who underwent MSLTs (1st MSLT with 1 night and 2nd MSLT with more than 3 nights), were enrolled. We selected these cases based on the longer total sleep time on PSG night compared to the mean total sleep time on pre-examination sleep logs and shortened sleep latencies on PSG. To evaluate the effect of the sleep debt for the patients who showed short sleep latencies, we extended their hospitalization or re-hospitalized them. RESULTS: The mean sleep latency of 1st MSLT was 5.8 minutes and that of 2nd was 13.9 minutes (P < .001). Among these 12 cases, 5 cases altered from short to normal sleep latencies at the 2nd MSLT. These 5 cases were prevented from over-diagnoses by the extension of evaluations. CONCLUSIONS: The sleep debt may produce false-positive results when patients are examined by standard PSG and MSLT. Accumulation of sleep debt will cause shortened sleep latencies in the following nights. Patients should be advised to extend their hospitalization before PSG and MSLT to reduce the chronic sleep debt for accurate diagnosis of hypersomnia.

Oral squamous cell carcinoma of the tongue dorsum with multiple cancer-associated mutations in the TP53 gene.

OBJECTIVES: Squamous cell carcinoma (SCC) of the tongue is one of the most common oral cancers, tongue dorsum being a site of low incidence of primary SCC. We report a rare case of SCC of the tongue dorsum in a 69-year-old man having a history of multiple cancers, including esophageal cancer, gastric cancer, and renal cell carcinoma. We discuss the findings in relation to past reports. MATERIALS AND METHODS: TP53 was PCR amplified using the genomic DNA extracted from peripheral blood mononuclear cells and formalin-fixed, paraffin-embedded tissue sections from the tumor site of the patient, and was sequenced. RESULTS: Physical examination revealed an elastic hard mass on the tongue dorsum, with a size of 22 × 15 mm. There were no palpable enlarged lymph nodes in the cervical and submandibular region. An incisional biopsy was performed. The diagnosis was well-differentiated SCC of tongue, T2N0M0, Stage II, and was treated through surgery. Surgical specimen of the deep ulcer area showed increased expression of p16 protein with no expression of p53 protein. He had a heterozygous gene polymorphism (c.215C > G: p.Pro72Arg) and a germline mutation (c.838A > T: p.Arg280*) of the TP53. However, there has been no recurrence or metastasis of the tongue carcinoma through the follow-up for 3 years. CONCLUSION: Germline TP53 mutation and codon 72 polymorphism are risk factors for uncontrolled cell proliferation, possibly leading to the patient's clinical phenotype. Therefore, strict follow-up is required when treating those who are at a higher risk of cancer due to a TP53 mutation.

The benefits of high-flow management in children with pulmonary atresia.

The high-flow management of cardiopulmonary bypass (CPB; >or=2.4 L/min/m(2)) is a standard strategy used at this institute for children with pulmonary atresia (PA) due to a fear that the blood flow may be diverted by the major/minor aortopulmonary-collateral-arteries and hypervascularization due to long-term hypoxia. The purpose of this study was to describe the validity of high-flow management in children with PA. The CPB records of 23 children with PA who underwent a definitive biventricular repair between Feb 2006 and Nov 2008 were retrospectively reviewed. The mean age at the operation was 33 +/- 22 months. The blood-pressure during bypass was controlled with the same protocol. The mean cooling-temperature was 28.4 +/- 3.7 degrees C. The mean minimum hematocrit was 25.0 +/- 3.4%. The mean maximum bypass flow index at the initiation, the mean maximum flow index during aortic cross-clamping, the mean minimum flow index during aortic cross-clamping, and the mean maximum flow index after rewarming were 3.1 +/- 0.5, 3.1 +/- 0.5, 2.6 +/- 0.4, and 3.2 +/- 0.4 L/min/m(2), respectively. The higher bypass flow indexes significantly correlated with the lower serum lactate levels. The lowest oxygen delivery during CPB had significant influences on the urine output during bypass (R = 0.547, P = 0.007), the serum lactate levels at the end of CPB (R = -0.442, P = 0.035), and the postoperative thoracic effusion (R = -0.459, P = 0.028). A bypass flow index of 2.4 L/min/m(2) may not be sufficient and the maximum requirement of bypass flow index may be 3.2 L/min/m(2) or more in this patient population.

Reconstruction of the cervical trachea using a prefabricated corticoperiosteal flap from the femur.

We treated a severe cervical fistula with a defect of tracheal cartilage using prefabrication of a corticoperiosteal flap combined with a cutaneous flap.The patient was a 16-year-old male with a cervical tracheal fistula that developed after a tracheostomy. Almost all the circumference of the trachea just below the cricoid cartilage up to the 4th tracheal cartilage had been lost.The reconstruction was performed in 2 series of operations as follows; repair of tracheal framework using a prefabricated corticoperiosteal flap, which was harvested from the femur and composed of a saphenous flap, and then complete closure using a local hinge flap and a free auricular cartilage graft. A free corticoperiosteal flap composed of a saphenous flap was transferred to the site just lateral to the defect. The corticoperiosteal flap, which has a flat shape, was bent in a reverse U-shaped semitubular fashion and the mucosal grafts were used to cover its inner surface. Two months later, the prefabricated corticoperiosteal flap and the saphenous flap were transposed leaving a part of the fistula as a tracheostoma. The remaining tracheostoma was closed secondarily. A satisfactory and stable result was obtained over an 8-year follow-up period.We believe that the procedure demonstrated here should be considered as a choice for the stable reconstruction of a cervical trachea.

Open Thoracoabdominal Aortic Aneurysm Repair: Contemporary Outcomes for 393 Elective Cases.

BACKGROUND: The purpose of this study was to reveal the midterm and long-term mortality rates among patients with thoracoabdominal aortic aneurysm (TAAA) after open TAAA repair and to clarify the effect of aneurysm type on mortality. METHODS: We retrospectively analyzed data for 393 patients (290 men; age, 63.2 ± 12.7 years) who underwent open TAAA repair of elective Crawford extent I, II, or III TAAAs (62, 197, and 134 patients, respectively) between June 2003 and December 2015. The overall survival probability and differences according to aneurysm type were assessed using the Kaplan-Meier product limit method. Also, the effect of aneurysm type on mortality was assessed using the hazard ratio and Cox proportional hazards regression. RESULTS: The overall survival probabilities at 3 months, 1 year, 5 years, and 10 years were 90%, 84%, 78%, and 75%, respectively. The age-adjusted relative mortality rate was significantly higher for patients with dissecting aneurysms than for those with nondissecting aneurysms (relative risk, 1.62; 95% confidence interval, 1.03 to 2.55). In the multivariate Cox proportional hazard regression model, the hazard ratio for all-cause mortality did not differ between patients with dissecting and those with nondissecting aneurysms. However, those with dissecting aneurysms had increased mortality rates as their percentage vital capacity decreased (hazard ratio, 0.7; 95% confidence interval, 0.5 to 1.0); a similar trend was not observed for those with nondissecting aneurysms. CONCLUSIONS: Open TAAA repair can be safely performed with acceptable midterm and long-term results. Poor pulmonary function can impair the survival outcome of patients with dissecting aneurysms.

Diabetes care providers' manual for disaster diabetes care.

To ensure that experiences and lessons learned from the unprecedented 2011 Great East Japan Earthquake are used to improve future disaster planning, the Japan Diabetes Society (JDS) launched the "Research and Survey Committee for Establishing Disaster Diabetes Care Systems Based on Relevant Findings from the Great East Japan Earthquake" under the supervision of the Chairman of the JDS. The Committee conducted a questionnaire survey among patients with diabetes, physicians, disaster medical assistance teams (DMATs), nurses, pharmacists, and nutritionists in disaster areas about the events they saw happening, the situations they found difficult to handle, and the needs that they felt required to be met during the 2011 Great East Japan Earthquake. A total of 3,481 completed questionnaires were received. Based on these and other experiences and lessons reported following the 2011 Great East Japan Earthquake and the 2004 Niigata-Chuetsu Earthquakes, the current "Manual for Disaster Diabetes Care" has been developed by the members of the Committee and other invited authors from relevant specialties. To our knowledge, the current Manual is the world's first to focus on emergency diabetes care, with this digest English version translated from the Japanese original. It is sincerely hoped that patients with diabetes and healthcare providers around the world will find this manual helpful in promoting disaster preparedness and implementing disaster relief.

Diabetes Care Providers' Manual for Disaster Diabetes Care.

To ensure that experiences and lessons learned from the unprecedented 2011 Great East Japan Earthquake are used to improve future disaster planning, the Japan Diabetes Society (JDS) launched the "Research and Survey Committee for Establishing Disaster Diabetes Care Systems Based on Relevant Findings from the Great East Japan Earthquake" under the supervision of the Chairman of the JDS. The Committee conducted a questionnaire survey among patients with diabetes, physicians, disaster medical assistance teams (DMATs), nurses, pharmacists, and nutritionists in disaster areas about the events they saw happening, the situations they found difficult to handle, and the needs that they felt required to be met during the 2011 Great East Japan Earthquake. A total of 3,481 completed questionnaires were received. Based on these and other experiences and lessons reported following the 2011 Great East Japan Earthquake and the 2004 Niigata-Chuetsu Earthquakes, the current "Manual for Disaster Diabetes Care" has been developed by the members of the Committee and other invited authors from relevant specialties. To our knowledge, the current Manual is the world's first to focus on emergency diabetes care, with this digest English version translated from the Japanese original. It is sincerely hoped that patients with diabetes and healthcare providers around the world will find this manual helpful in promoting disaster preparedness and implementing disaster relief.