Factors associated with restricted mouth opening and its relationship to health-related quality of life in patients attending a Maxillofacial Oncology clinic

Trismus can be a problematic consequence of treatment for oral and oropharyngeal cancer. The aim of this study was to investigate the relationship between trismus, subjective function and health-related quality of life, in order to postulate a clinically relevant cut-off that might be useful as an indicator of patients who might benefit from intervention. One hundred consecutive patients attending the Maxillofacial Oncology clinic at the University Hospital Aintree were assessed during a period of four months. Mouth opening was recorded in millimetres. Subjective outcomes were evaluated using UW-QOL questionnaire for chewing, saliva, mood, anxiety and overall quality of life. The median age of patients was 63 (IQR 56–69) years. The median time since treatment was 16 (IQR 6–34) months. The median mouth opening (32 mm; range 6–53, IQR 24–40) was associated strongly with clinical T stage (Tis/T1–2 35 mm, T3–4 24 mm), radiotherapy (no 38 mm, yes 27 mm) and type of primary surgery (primary closure 38 mm, soft-tissue flaps 30 mm, composite flaps 24 mm). The amount of mouth opening and of the single question (about how much less mouth opening since treatment) was significantly associated with patients perception of chewing deficit, less than full diet and less than good overall quality of life. This study supports a 35 mm cut-off for trismus. There is merit including the two elements together (opening in mm and the single item question on mouth opening since treatment) as outcome parameters     

8 cm以上复杂性尿道狭窄的外科治疗

目的探讨长段尿道狭窄手术方法的选择与疗效。方法对76例尿道狭窄8cm以上的患者采用不同尿道成形术式治疗,其中不同黏膜重建尿道42例（结肠黏膜26例,膀胱黏膜6例,口腔黏膜10例）;带蒂皮瓣一期尿道成形20例;尿道狭窄段切开、二期尿道成形（Johanson术）12例;阴茎段尿道与前列腺部尿道吻合、三期尿道成形术2例。结果术后初期（6个月内）排尿通畅67例（88％）,有并发症者10例。术后1年以上70例,其中获得随访51例,排尿通畅44例,有并发症者8例,其中采用带蒂皮瓣者发生尿道狭窄2例（18％,2／11）;Johanson术者发生阴茎弯曲2例（2／5）,其中1例成形段尿道内毛发生成和结石形成;采用口腔黏膜者发生尿道狭窄1例（1／7）,膀胱黏膜者发生尿道狭窄1例（1／3）,结肠黏膜者发生后尿道狭窄2例（9％,2／23）。结论口腔与结肠黏膜尿道成形对长段尿道狭窄是较理想的术式;结肠黏膜较适合在常规手术治疗失败后或复杂性尿道狭窄10cm以上的治疗。     

Effects of mouth dryness on drinking behavior and beverage acceptability

In humans, the association between mouth dryness and thirst has been examined in a variety of contexts. Typically, drinking behavior produces a concomitant reduction in unpleasant dry mouth sensations. Evidence is reviewed for a mechanism that influences the termination of drinking behavior by metering this change. Drinking behavior causes a progressive increase in parotid saliva flow. Thus, one possibility is that satiety results from a decrease in the reward associated with mouth wetting during a drinking episode. Beverages can differ in their satiating ability. This variability may be related to their mouth-wetting characteristic, and may be reflected in a shift in their acceptability when the mouth becomes dry. Physically drying the mouth appears to increase the acceptability of beverages that are either cold or acidic. It may be significant that two important determinants of mouth wetting are temperature and acidity. Cold or acidic beverages are also likely to be regarded as 'thirst-quenching.' Thus, shifts in acceptability, 'thirst quenching' and satiety may all be related to the mouth-wetting properties of a beverage. The extent to which this coincidence is meaningful warrants further investigation. However, if a common underlying process exists, then this may help to elucidate reasons for voluntary dehydration and aberrant drinking behavior in the elderly.     

三羧氨基喹啉对人口腔癌裸鼠移植瘤的抗血管生成作用与其调节巨噬细胞分泌细胞因子的关系

目的 :观察三羧氨基喹啉 ( Linom ide)对人口腔癌裸鼠移植瘤的治疗作用 ,探讨其抗血管生成作用与调节巨噬细胞分泌细胞因子的关系。方法 :建立人舌癌裸鼠移植瘤模型 ,观察 Linom ide对肿瘤生长的抑制作用 ,采用免疫组化染色检测 L inomide治疗组和对照组荷瘤裸鼠的肿瘤微血管密度 ( MV D)的变化 ,采用 ELISA方法检测Linom ide对巨噬细胞分泌促血管因子 TN F- α及血管抑制因子 G M- CSF功能的影响。结果 :10 0 m g/ kg· d- 1、50mg/ kg· d- 1Linom ide腹腔注射组、对照组裸鼠瘤重分别为 ( 0 .4 7± 0 .2 5) g、( 0 .92± 0 .30 ) g、( 1.75± 0 .38) g,治疗组瘤重明显降低 ( P<0 .0 1)。治疗组瘤组织 M VD明显减低 ,与对照组相比 ,50 m g/ kg· d- 1和 10 0 m g/ kg· d- 1Linom ide治疗组的 MV D分别减少了 38.2 %和 57.8%。 Linom ide治疗组腹腔巨噬细胞分泌 TN F-α的水平与对照组比较 ,受到明显抑制 ( P<0 .0 5)。 L inom ide体外处理小鼠巨噬细胞系 RA W 2 6 4.7也可明显抑制其分泌 TN F-α的水平 ( P <0 .0 5) ,并存在剂量效应关系。结论 :Linom ide可有效抑制人舌鳞状细胞癌裸鼠移植瘤的生长 ,降低肿瘤微血管密度 ,抑制巨噬细胞分泌 T NF-α可能是其一个重要的抗血管生成机制。     

Necrotizing Sialometaplasia in the Mouth Floor Secondary to Reconstructive Surgery for Tongue Carcinoma

Necrotizing sialometaplasia is a benign inflammatory process, which histologically can mimic squamous cell carcinoma. A 63-year-old man underwent left hemiglossectomy involving transplantation of a myocutaneous flap for squamous cell carcinoma of the tongue. One month after the operation, necrotizing sialometaplasia occurred in the minor salivary gland tissue of the mouth floor, compressed by the necrotic flap. This case is very unusual because of the ocurrence of necrotizing sialometaplasia in the floor of the mouth. The etiology of the lesion was considered to be ischemia secondary to compression by the necrotic myocutaneous flap. Acta Pathol Jpn 41: 689–693, 1991.     

脑瘫患儿口运动与进食和营养问题

目的　分析脑瘫患儿口运动与进食障碍的发生率与症状学 ,并对营养状况进行初步评价。方法　 2 0 0 2年 3月～ 2 0 0 3年 3月住院康复的脑瘫患儿 5 9例 ,男 39例 ,女 2 0例 ,平均年龄 31个月 (2 0～ 72个月 )。父母问卷调查了解高危因素、喂养史 ,神经病学检查评价脑瘫类型 ,Gesell发育评分评价运动发育年龄 ,测体重、身高评价营养状况 ,对所有患儿进行口运动与进食技能评分与现场观察 ,按年龄、性别匹配对照组进行对比分析。结果　 5 9例患儿中口运动障碍 5 1例 ,所有徐动型和痉挛型四肢瘫、16例痉挛型双瘫患儿存在口运动异常 ,脑瘫组平均口运动评分为 (2 5± 15 )分 ,低于对照组儿童 (t=11 5 87,P <0 0 0 1)。口运动异常涉及下颌、唇、舌的各个运动测试亚项。 5 5例患儿存在进食方面问题 ,绝大多数患儿进食过程中需要家长帮助 ,半数患儿仅能进食流质和 (或 )半流质 ,不能进食固体食物。进食技能障碍主要表现在口相和口前相 ,脑瘫组进食技能分平均 (35± 11)分 ,亦明显低于对照儿童 (t=4 5 5 2 ,P <0 0 0 1) ,徐动型总分较低 ,其次是痉挛型四肢瘫。脑瘫组 13例患儿体重低于第 2 5百分位数 ,19例患儿身高低于第 2 5百分位数 ,提示体格发育存在受阻现象。结论　绝大多数脑瘫患儿存在口运动和进食障碍 ,     

Hand, foot and mouth disease in Singapore: a comparison of fatal and non-fatal cases

Aim: An epidemic of hand, foot and mouth disease (HFMD) occurred in Singapore between September and November 2000. During the epidemic, there were four HFMD-related deaths and after the epidemic, another three HFMD-related deaths. This study sought to determine the risk factors predictive of death from HFMD disease. Methods: The risk factors for fatal HFMD were determined by comparing clinical and laboratory findings between fatal cases (n = 7) and non-fatal controls (n = 131) admitted between September 2000 and April 2001. Enterovirus 71 positive fatal cases (n = 4) and non-fatal controls (n = 63) were also compared. Results: In total, 138 HFMD cases with a mean age of 32 mo were studied. The majority of fatal cases died from interstitial pneumonitis, of whom three also had brainstem encephalitis. Of the 131 non-fatal cases, 3 had concomitant infections (respiratory syncytial virus bronchiolitis, right-sided pneumonia, Haemophilus influenzae type b meningitis), 2 had aseptic meningitis, and 1 each had transient drowsiness, intravenous immunoglobulin-related complications and transverse myelitis. By multivariate logistic regression analysis, atypical physical findings (p = 0.0006), raised total white cell count (p = 0.0128), vomiting (p = 0.0116) and absence of mouth ulcers (p = 0.043) were predictive of a fatal course. Although previous epidemics have described neurogenic pulmonary oedema as the main cause of death, the fatal cases in this study died mainly from interstitial pneumonitis alone or with myocarditis or encephalitis.

Conclusion: Although HFMD is generally a benign disease, risk factors such as vomiting, absence of mouth ulcers, atypical presentation and raised total white cell count should alert the physician of a fatal course of illness.     

Radiotherapy for oral cancer as a risk factor for second primary cancers

Radiation exposure, known to cause DNA damage, may be a potential source of field cancerization of the upper aerodigestive tract. Radiotherapy for head and neck cancers has been examined as a possible risk factor for second primary cancers, but the results have been equivocal. We evaluated the impact of therapeutic radiation for oral cancer on the risk of second primary cancers with data from the Surveillance, Epidemiology, and End Results (SEER) program for 1973–1999. Among 30,221 first primary oral squamous cell carcinoma patients, 6163 (20.4%) patients developed a second primary cancer, 5042 of which were metachronous. Patients treated with radiation only (RR=1.64, 95%CI=1.18–2.29) or radiation with surgery (RR=1.49, 95%CI=1.07, 2.06) had elevated risks of developing a second primary tumor, whereas patients treated with surgery only did not appear to be at increased risk (RR=1.28, 95%CI=0.93, 1.76). Consistent with an expected latent period between radiation exposure and tumor occurrence, radiation became a risk factor after 10 years of follow-up for solid cancers of the oral cavity (RR=2.8, 95%CI=1.5, 5.2), pharynx (RR=5.9, 95%CI=1.7, 20.7), esophagus (RR=3.9, 95%CI=1.1, 13.4) and lung (RR=1.5, 95%CI=1.0, 2.4), and after 1–5 years of follow-up for second primary leukemia (RR=2.5, 95%CI=1.0, 6.7). Radiotherapy for oral cancer appears to be a risk factor for second primary tumors. Further studies that account for chemotherapy and examine frequency and duration of radiotherapy would be of interest in confirming the observed association.     

呼吸方式与牙齿咬合关系的研究

目的：揭示呼吸方式与牙齿咬合的关系。方法：通过口鼻气流同步测定系统的随机检测，选择鼻呼吸比例≤70％（口呼吸组）及≥95％（鼻呼吸组）的11－14岁儿童各34人，比较其头颅定位侧位片中牙He指标的差异，及与口呼吸比例的相关关系。结果：口呼吸儿童与鼻呼吸儿童相比前牙覆He（OB）较浅、覆盖（OJ）无差异，牙弓突度较大。口呼吸比例与覆He(OB)呈负相关，与上下中切牙角（UI－LI）呈负相关。结论：口呼吸对牙齿咬合关系有一定影响。