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1.
The current tendency to perform corrective rhinoplasty with the help of computerized images or cephalometric evaluations is justified by the need to adapt the amount of correction to all of the cephalometric relationships and draw on indications on the exact quantity of tissue to add or remove. We propose a very simple standard of surgical planning, which permits obtaining immediate data on the position of the jaw, the maxilla, and the correct nose proportion, and we confront the results of surgical planning with the postoperative.  相似文献   

2.
The aim of this study was to assess the efficiency of a self-administered questionnaire to identify subjects with postmenopausal osteoporosis in the setting of first line medical care. A sample of 300 postmenopausal women completed the questionnaire based on 18 items. Bone mineral density at the lumbar spine (BMD-L), total hip (BMD-H), and femoral neck (BMD-N) was used as objective criterion for evaluation. The mean risk score was 8.2 ± 3.21. BMD was correlated with total risk score: r =−0.32 for BMD-L, −0.36 for BMD-N, and −0.43 for BMD-H. Cutoff points for the risk score (equal likelihood points) according to a T-score threshold of −2.5 were 8.6 for BMD-L and BMD-N and 9.3 for BMD-H; specificity and sensitivity was 62% and 62%, respectively, for BMD-L, 65% and 62% for BMD-N, and 75% and 63% for BMD-H. Stepwise multiple regression analysis of the questionnaire items in relation to BMD showed higher correlation coefficients for models including individual items rather than the overall risk score. Items concerning low weight, older age, and wrist fracture after 50 years of age were always selected as significant determinants of BMD (R = 0.43–0.55). Hormonal replacement therapy was also an important determinant. Lifestyle-related items did not contribute significantly. In conclusion, the diagnostic performance of the 18-item self-administered questionnaire was poorer than a shortened questionnaire omitting lifestyle factors. The clinical utility of a questionnaire should ultimately be evaluated in the specific optic of a chosen global strategy for prevention of osteoporotic fractures. Received: 30 October 1998 / Accepted: 10 June 1999  相似文献   

3.
Possible Predisposing Factors for the Second Hip Fracture   总被引:8,自引:0,他引:8  
Among 1685 patients who sustained a hip fracture at the island of Crete (Greece) in a 4-year period we found 106 patients with bilateral noncontemporary hip fractures. Pathologic hip fractures and fractures that emerged from high energy trauma were excluded. To investigate the possible factors predisposing to the later fracture in the sound hip, we studied these 106 patients and compared them with the 1579 patients who sustained a single hip fracture (control group). There was no significant difference between the mean age of the bilateral group at the time of the first hip fracture (78.3 ± 7.4 years, range 52–94 years) and the mean age of the control group (77.3 ± 11.9 years, range 50–101 years). We found no significant difference in the bone status between the two groups, using both lumbar spine dual photon absorptiometry (DXA) and calcaneus broadband ultrasound attenuation (BUA). Falls, which were the main cause of all the hip fractures, were much more common in the bilateral group. The second hip fracture was of the same location (trochanteric or cervical) in 92% of the trochanteric and 68% of cervical fractures and a tendency to greater displacement or instability was observed. Of the second hip fractures 75% happened in the first 48 months after the first one. The mean interval time was much longer (160 months) when a neck fracture was followed by a trochanteric one. Received: 19 November 1996 / Accepted: 22 August 1997  相似文献   

4.
Alterations in hepatic function during laparoscopic surgery   总被引:11,自引:4,他引:11  
Background: Very few studies have been done on the consequences of pneumoperitoneum on hepatic function. At present, there is no consensus on the physiopathological hepatic implications of pneumoperitoneum. The purpose of this clinical study was to evaluate the effects of pneumoperitoneum on hepatic function in 52 patients treated with laparoscopic procedures. Methods: Thirty-two laparoscopic cholecystectomies and 20 nonhepatobiliary laparoscopic procedures were performed in 52 patients (12 men and 40 women) with a mean age of 44 years (range, 15–74). All patients had normal values on preoperative liver function tests. The anesthesiologic protocol was uniform, with drugs at low hepatic metabolism. The 32 cholecystectomies were randomized into 22 performed with pneumoperitoneum at 14 mmHg and 10 performed at 10 mmHg. All nonhepatobiliary laparoscopic procedures were performed with a pneumoperitoneum of 14 mmHg. The postoperative serologic levels of AST, ALT, bilirubin, and prothrombin time were measured at 6, 24, 48, and 72 h. The serologic changes were related to the procedure, the duration, and the level of pneumoperitoneum. Results: Mortality and morbidity were nil. All 52 patients had a postoperative increase in AST, ALT, bilirubin, and lengthening in prothrombin time. Slow return to normality occurred 48 or 72 h after operation. The increase of AST and ALT was statistically significant and correlated both to the level (10 versus 14 mmHg) and the duration of pneumoperitoneum. Conclusions: The duration and level of intraabdominal pressure are responsible for changes of hepatic function during laparoscopic procedures. Although no symptom appears in patients with normal hepatic function, patients with severe hepatic failure should probably not be subjected to prolonged laparoscopic procedures. Received: 23 May 1997/Accepted: 28 October 1997  相似文献   

5.
6.
7.
This research presents reports of cases where a biocompatible and alloplastic biomaterial—Bioplastique—was used, associated with conventional plastic surgery or as a complement to it, with the aim of achieving a better final aesthetic result. Four cases are presented where Bioplastique was used in association with rhytidoplasty, rhinoplasty, and other surgical techniques. This material has shown itself to be appropriate to complement surgery; achieving a final result which would not be possible without any resort to a complement or any other hard procedure by the surgeon and is not more traumatic for the patient.  相似文献   

8.
Purpose The purpose of the study was to determine the influence of postoperative complications on long-term quality of life in patients after abdominal operations for Crohn’s disease. Materials and Methods From 1996 to 2002, 305 Crohn’s patients underwent abdominal surgery, and 66 patients developed postoperative complications. Quality of life was studied using a standardized questionnaire and four quality of life instruments. Sixty-six Crohn’s patients with uneventful postoperative course matched for age, and follow-up time served as controls. Results Forty-eight patients (81%) in the complication group (32 major and 16 minor) and 43 patients (75%) in the control group answered the questionnaire. Postoperative follow-up time was 42 (10–94) and 41 months (13–94; median (range)). Quality of life was comparable between groups, except on the subscale “physical functioning” of the Short-form 36 on which patients with minor and major complications showed impaired quality of life compared to controls (67 ± 6, 69 ± 4, and 84 ± 2%; mean ± standard error of the mean; both p < 0.05 vs controls). The incidence of Crohn’s disease-related symptoms at follow-up was unaffected by complications (minor 63%, major 56% vs controls 70%; both not significant). Conclusion Postoperative complications after abdominal operations for Crohn’s disease do not impair long-term quality of life in general but may affect specific dimensions of quality of life like patients’ physical function. Part of this work was presented at the meeting of the Society for Surgery of the Alimentary Tract during the Digestive Disease Week in Los Angeles, CA, on May 20–25, 2006 and was published in abstract form (Gastroenterology, 130(4 Suppl 2), A890, 2006).  相似文献   

9.
Complications in thoracoscopic spinal surgery   总被引:7,自引:0,他引:7  
Background: The literature contains few reports on negative outcomes after thoracoscopic spinal surgery. Methods: From November 1995 to February 1998, 90 patients underwent minimally invasive spinal surgery by thoracoscopic assistance as treatment for their anterior spinal lesions. The diagnoses included 41 spinal metastases, 13 cases of scoliosis, 12 burst fractures, 10 cases of tuberculous spondylitis, 8 cases of pyogenic spondylitis, 2 thoracic disc herniations, 2 cases of ankylosing spondylitis with discitis, 1 osteoporotic compression fracture, and 1 case of thoracolumbar kyphosis. The procedures included biopsy only (3 patients); thoracic discectomy (3 patients); multilevel anterior releases, discectomy, and fusion (14 patients); corpectomy for decompression (6 patients); corpectomy and interbody fusion (32) patients; and internal instrumentation (28 patients). Results: A total of 30 complications were noted in 22 patients (24.4%). Two fatal complications occurred, resulting from massive blood transfusion in one case and postoperative pneumonia in another. Other nonfatal complications included four cases of transient intercostal neuralgia, three superficial wound infections, three cases of pharyngeal pain, two cases of lung atelectasis, two cases of residual pneumothorax, two cases of subcutaneous emphysema, one inadvertent pericardial penetration due to adhesion, one chylothorax that resolved after conservative management, one vertebral screw malposition, and one graft dislodgement that needed late revision surgery. Three patients required ventilatory support for longer than 72 hours. Five patients with spinal metastases had an estimated intraoperative blood loss of more than 2,000 ml. No injury to the internal organs or spinal cord was observed. There were four conversions to open procedures due to two cases of severe pleural adhesions and two poorly tolerated one-lung ventilation. At the latest follow-up, nine patients had died as a result of cancer dissemination. Conclusions: (a) Well-selected patients and attention to details are essential to optimizing surgical results. (b) A refined technique for less invasive tumor surgery has been developed. (c) Surgeons had better experience with the standard anterior spinal approach and showed no hesitation in converting to an open procedure when necessary. A procedure failure does not mean a treatment failure. Received: 14 May 1998/Accepted: 25 August 1998  相似文献   

10.
Complications of laparoscopic antireflux surgery in childhood   总被引:6,自引:2,他引:4  
Background: The aim of this study was to assess the complications associated with the laparoscopic treatment of gastroesophageal reflux disease (GERD) in children. Methods: From March 1992 to March 1998, we used the laparoscopic approach to treat 289 children affected by gastroesophageal reflux disease. The patients' ages ranged between 4 months and 17 years (median, 4.3 years), and their body weight ranged between 5 and 52 kg. In 148 children (51.3%), we adopted a Nissen-Rossetti procedure and in 141 (48.7%) a Toupet technique. Results: The duration of surgery ranged between 40 and 180 min (median, 70). There were no deaths and no anesthesiological complications in our series. We recorded 15 (5.1%) intraoperative complications: six pleural perforations, four lesions of the posterior vagus nerve, two esophageal perforations, two gastric perforations, and one pericardiac perforation. Conversion to open surgery was necessary in only four cases (1.3%). We recorded 10 (3.4%) postoperative complications: one peritonitis due to an esophageal perforation not detected during the intervention that required a reoperation, five cases of herniation of the epiploon through a trocar orifice, three cases of dysphagia that disappeared spontaneously after a few months, and one case of delayed gastric emptying that subsequently required a pyloroplasty. We had six recurrences of GERD (2.1%). In two cases, a new fundoplication was performed using the laparoscopic approach; in the other four, the GERD was controlled with medical therapy. Conclusion: Our results show that laparoscopic fundoplication is an adequate treatment for children with GERD that has a low rate of complications. When severe complications do occur, they can be treated effectively via the laparoscopic approach. Received: 16 November 1999/Accepted: 16 December 1999/Online publication: 5 June 2000  相似文献   

11.
To establish the PTH dosage that maintains normal mineral homeostasis in the PTX rat, a series of doses of rat 1-34 PTH were infused via a subcutaneously implanted miniosmotic pump. The doses were 0, 0.011, 0.022, 0.044, and 0.11 μg/100 g/hour. After 48 hours, serum calcium ranged from 5.56 ± 0.02 to 16.29 ± 0.25 mg/dl, ANOVA P < 0.001, and serum phosphorus from 12.49 ± 0.03 to 5.33 ± 0.34 mg/dl, ANOVA P < 0.001. By post hoc test, the serum calcium level was different (P < 0.05) at every PTH dose; the serum phosphorus level was different (P < 0.05) at every PTH dose except between the two highest doses. The PTH dosage that produced a normal serum calcium (10.09 ± 0.10 mg/dl) and phosphorus (6.90 ± 0.18 mg/dl) was 0.022 μg/100 g/hour. The relationship between increasing doses of PTH and both serum calcium and phosphorus was curvilinear and the calcium-phosphorus product was remarkably constant from a serum calcium of 7–13 mg/dl. The increase in serum calcium and the decrease in serum phosphorus were more rapid at lower than at higher PTH doses so that for both, an asymptote was reached. At the highest serum calcium values, the calcium-phosphorus product increased and in individual rats, an increase in serum phosphorus was associated with a decrease in serum calcium. In summary, this study shows that (1) for rat 1-34 PTH, the normal replacement dose in the PTX rat with normal renal function on a normal diet is 0.022 μg/100 g/hour; (2) the relationship between PTH and both serum calcium and phosphorus is curvilinear, and an asymptote is reached for both; and (3) the calcium-phosphorus product is remarkably constant as the serum calcium increases from 7 to 13 mg/dl and only increased during marked hypercalcemia when serum phosphorus did not decrease further or even tended to increase. Received: 30 May 1997 / Accepted: 15 October 1997  相似文献   

12.
Background: Persistent postoperative dysphagia occurs in up to 24% of patients who undergo a laparoscopic Nissen fundoplication for reflux disease [7]. We hypothesized that patient history, pH testing, and esophageal manometry could be used to preoperatively identify patients at risk for this complication. Methods: Of 156 laparoscopic Nissen fundoplications performed over a 27-month period, we identified 19 patients (12%) who suffered from postoperative dysphagia longer than 3 months. The presenting complaint of preoperative swallowing difficulty was noted as was the presence of a known esophageal stricture. Preoperative pH testing and esophageal manometry were performed for all subjects. We compared the following parameters to an age and gender-matched control group: history of esophageal stricture, presence of preoperative dysphagia, DeMeester reflux score, upper esophageal sphincter pressure and relaxation, esophageal body motility, location of respiratory inversion point, and lower esophageal sphincter length, resting pressure, and relaxation. Data were compared via t-test and Fisher's exact test. Results: Patients who presented before surgery with complaints of difficulty swallowing were more likely to suffer from postoperative dysphagia (p= 0.029). Incidence of stricture, DeMeester score, and manometric measurements did not differ between the dysphagia and control groups (p > 0.05 for all parameters). Conclusions: Although preoperative studies are not helpful in identifying patients at risk for persistent dysphagia after laparoscopic Nissen fundoplication, patients presenting with the preoperative complaint of difficulty swallowing are at increased risk for this complication. Received: 1 April 1999/Accepted: 22 July 1999  相似文献   

13.
The prevalence of hypercalcemia in patients with untreated tuberculosis (TB) varies widely between countries. Since the vitamin D status and calcium intake are important determinants of hypercalcemia in TB, these two factors were compared among four populations (U.K., Hong Kong, Malaysia, Thailand) with a low prevalence (<3%) and two populations (Sweden, Australia) with a high prevalence (>25%). In the three Asian countries, the circulating vitamin D levels are abundant, but the calcium intakes are low. Subjects from the U.K. have the lowest circulating vitamin D level of all, although their calcium intake is high. In Sweden and Australia, both the circulating vitamin D levels and calcium intakes are high. Since serum 1,25(OH)2D concentration will only be raised if its substance for extrarenal conversion, 25(OH)D, is plentiful and the effect of a given serum 1,25 (OH)2D concentration on serum calcium is determined by the calcium intake, it is postulated that the regional variation in the prevalence of hypercalcemia in TB may be due to differences in the circulating vitamin D levels and calcium intakes in these populations. Received: 18 March 1996 / Accepted: 17 June 1996  相似文献   

14.
Purpose  The impact of infliximab (IFX) on postoperative complications in surgical patients with Crohn’s disease (CD) and ulcerative colitis (UC) is unclear. We examined a large patient cohort to clarify whether a relationship exists between IFX and postoperative complications. Methods  A total of 413 consecutive patients—188 (45.5%) with suspected CD, 156 (37.8%) with UC, and 69 (16.7%) with indeterminate colitis—underwent abdominal surgery at the Massachusetts General Hospital between January 1993 and June 2007. One hundred one (24.5%) had received preoperative IFX ≤ 12 weeks before surgery. These patients were compared to those who did not receive IFX with respect to demographics, comorbidities, presence of preoperative infections, steroid use, and nutritional status. We then compared the cumulative rate of complications for each group, which included deaths, anastomotic leak, infection, thrombotic complications, prolonged ileus/small bowel obstruction, cardiac, and hepatorenal complications. Potential risk factors for infectious complications including preexisting infection, pathological diagnosis, and steroid or IFX exposure were further evaluated using logistic regression analysis. Results  Patients were similar with respect to gender (IFX = 40.6% men vs. non-IFX = 51.9%, p = 0.06), age (36.1 years vs.37.8, p = 0.43), Charlson Comorbidity Index (5.3 vs. 5.7, p = 0.25), concomitant steroids (75.3% vs. 76.9%, p = 0.79), preoperative albumin level (3.3 vs. 3.2, p = 0.36), and rate of emergent surgery (3.0% vs. 3.5%, p = 1.00). IFX patients had higher rates of CD (56.4% vs. 41.9%, p = 0.02), concomitant azathioprine/6-mercaptopurine use (34.6% vs. 16.6%, p < 0.0001), and lower rates of intra-abdominal abscess (3.9% vs. 11%, p < 0.05). After surgery, the two groups had similar rates of death (2% vs. 0.3% p = 0.09), anastomotic leak (3.0% vs. 2.9%, p = 0.97), cumulative infections (5.97% vs. 10.1%, p = 1), thrombotic complications (3.6% vs. 3.0%, p = 0.06), prolonged ileus/small bowel obstructions (3.9 vs. 2.8, p = 0.59), cardiac complications (1% vs. 0.6%, p = 0.42), and hepatic or renal complications (1.0 vs. 0.6% p = 0.72). A logistic regression model was then created to assess the impact of IFX, as well as other potential risk factors, on the rates of cumulative postoperative infections. We found that steroids (odds ratio [OR] = 1.2, p = 0.74), IFX (OR 2.5, p = 0.14), preoperative diagnosis of CD (OR = 0.7, p = 0.63) or UC (OR = 0.6, p = 0.48), and preoperative infection (OR = 1.2, p = 0.76) did not affect rates of clinically important postoperative infections. Conclusions  Preoperative IFX was not associated with an increased rate of cumulative postoperative complications. Dr. Sands has received research grants and honoraria for lecturing and consulting from Centocor.  相似文献   

15.
Endochondral bone formation occurs through a series of developmentally regulated cellular stages, from initial formation of cartilage tissue to calcified cartilage, resorption, and replacement by bone tissue. Nasal cartilage cells isolated by enzymatic digestion from rat fetuses were seeded at a final density of 105 cell/cm2 and cultured in Dulbecco's modified Eagle medium (DMEM) supplemented with 10% fetal calf serum in the presence of ascorbic acid and β-glycerophosphate. First, cells lost their phenotype but in this condition they rapidly reexpressed the chondrocyte phenotype and were able to form calcified cartilaginous nodules with the morphological appearance of cartilage mineralization that occurs in vivo during endochondral ossification. In this mineralizing chondrocyte culture system, we investigated, between day 3 and day 15, the pattern expression of types II and X collagen, proteoglycan core protein, characteristic markers of chondrocyte differentiation, as well as alkaline phosphatase and osteocalcin associated with the mineralization process. Analysis of labeled collagen and immunoblotting revealed type I collagen synthesis associated with the loss of chondrocyte phenotype at the beginning of the culture. However, our culture conditions promoted extracellular matrix mineralization and cell differentiation towards the hypertrophic phenotype. This differentiation process was characterized by the induction of type X collagen mRNA, alkaline phosphatase, and diminished expression of type II collagen and core protein of large proteoglycan after an increase in their mRNA levels before the mineralizing process. These results revealed distinct switches of the specific molecular markers and indicated a similar temporal expression to that observed in vivo recapitulating all stages of the differentiation program in vitro. Received: 12 December 1996 / Accepted: 26 June 1997  相似文献   

16.
Background: Gallbladder perforation during laparoscopic cholecystectomy (LC) with spillage of bile and gallstones occurs in a substantial number of patients (up to 40%). Most surgeons believe that free intraperitoneal stones are not a justification for conversion to laparotomy even if a large number of stones are left in situ. There are, however, a number of reports demonstrating that, on occasion, these unretrieved gallstones may cause infection or abscess, inflammation, fibrosis, adhesions, cutaneous sinuses, small bowel obstruction, or generalized septicemia. The aim of this study was to determine the outcome of unretrieved gallstones in the peritoneal cavity after gallbladder perforation during LC. Methods: In a 7-year period between 1989 and 1996, prospective data were maintained on 856 patients who underwent LCs by a single surgeon (R.J.F.). Of the 856 patients, 165 (16%) had gallbladder perforations resulting in lost gallstones in the peritoneal cavity. A concerted attempt was made to remove the lost stones using a variety of extraction devices. Of these 165 patients, 106 (64%) were available for follow-up through mail (76%) and by telephone (24%). The mean age of these patients was 64.9 years (range, 18 to 98 years), and the mean follow-up was 44.8 months (range 4.9 to 92.3 months). Results: Of the 106 patients with unretrieved gallstones, we identified four patients with short-term complications and one patient with a long-term complication. The first patient with a short-term complication had pyrexia for 10 days postoperatively. Diagnostic evaluation, which included computed tomography (CT) scan, failed to reveal any abnormality. The patient was treated conservatively with a course of oral antibiotics. In the second patient, cellulitis developed at a drain site after its removal, which resolved with oral antibiotics. The third patient acquired an umbilical wound abscess, which drained spontaneously, requiring no treatment. A sterile subphrenic collection developed in the fourth patient 1 month postoperatively, which was treated with percutaneous drainage under CT guidance. The only long-term complication was spontaneous erosion of a gallstone from the back of a patient with a questionable history of inflammatory bowel disease 8 months postoperatively. All of the patients made complete recoveries. Conclusions: In most patients, unretrieved gallstones are of no consequence, but complications occur occasionally. It is therefore advisable to retrieve as many gallstones as possible during LC short of converting to a laparotomy. Received: 21 July 1998/Accepted 12 February 1999  相似文献   

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A case of necrotizing esophagitis discovered during upper endoscopy is described. An 88-year-old woman was admitted to our hospital with complaints of multiple episodes of coffee ground emesis and dysphagia over 3 months. Ischemia is proposed as the etiology of necrotizing esophagitis on the basis of the patient's significant cardiac history, her age, and low-flow state. Received: 23 December 1997/Accepted: 27 March 1998  相似文献   

19.
Background: Because blebs are confirmed in most of the patients undergoing thoracotomy, identification of blebs by high-resolution computed tomography (HRCT) can be proposed as a surgical indication in primary spontaneous pneumothorax (PSP). If an apical bleb is identified, we treat the patient by video-assisted thoracic surgery (VATS). Methods: From May 1995 to September 1997, 61 patients (21.9 ± 4.6 years) were seen for initial episodes of PSP. Only seven showed bullae on simple chest radiography. However, by HRCT, 48 had sizable blebs (>5 mm), and 45 were treated surgically by VATS. Results: The mean duration of chest tube use after surgery was 3.2 ± 1.9 days, and the mean hospital stay was 4.5 ± 1.9 days. Only one recurrence developed 5 weeks after VATS. Conclusions: Our protocol is effective in controlling an initial episode of PSP. It shortens the observation time before definitive surgical treatment, shortens the hospital stay, and decreases the likelihood of recurrence. Received: 25 June 1997/Accepted 18 February 1998  相似文献   

20.
Background: This prospective study assesses the outcome results in 100 consecutive patients with gastroesophageal reflux disease (GERD) treated with a laparoscopic Toupet fundoplication. Methods: GERD was confirmed by 24-h pH study and/or esophagogastroduodenoscopy (EGD). Pre- and postoperative symptoms, operative times, and perioperative complications were recorded on standardized data forms. Early follow-up was at 3 months and late follow-up, including 24-h pH, manometry, and EGD was at 22 months. Results: Preoperative symptoms included heartburn (92%), regurgitation (58%), water brash (39%), and dysphagia (39%). Mean operative time was 3.2 hours. There were no conversions to celiotomy and there were no mortalities. The perioperative complication rate was 14%; 6% (5/83) of patients reported heartburn at 3 months and 20% (15/74) at 22 months. Early and late dysphagia was 20% (17/83) and 9% (7/74), respectively; 24-h pH testing was abnormal in 90% of symptomatic patients (9/10), 39% of asymptomatic patients (12/31), and 51% overall. Conclusions: Despite early improvement in reflux symptoms following laparoscopic Toupet fundoplications, there is a high incidence of recurrent GERD. Symptomatic follow-up underestimates the true incidence of 24-h pH-documented reflux. Based on these results we cannot recommend the laparoscopic Toupet repair for GERD patients with normal esophageal motility. Received: 24 March 1997/Accepted: 28 May 1997  相似文献   

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