bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cystic duct obliteration and gallbladder mucosal destruction: A feasible alternative to cholecystectomy
Authors: Leahy A L , McCollum P T , O'Gorman S , Darzi A , Tanner W A , Keane F B V , Marks P , Kay E 
Published: March 2007

Abstract
‘Chemical cholecystectomy’ has been proposed as an alternative to removal of the gallbladder. This study assessed cystic duct obliteration using bipolar electrocoagulation (with sham cannulation controls) and gallbladder mucosal treatment with tetracycline (or saline controls) in 29 mongrel dogs. Cystic duct obstruction was assessed by tube cholecystography at day 14, and epithelial damage by histology at day 42. Electrocoagulation by duct diathermy effectively occluded the cystic duct in 14 of 19 animals; however, this was associated with mucocele formation unless mucosal treatment with tetracycline was also performed. Immediate instillation of tetracycline after duct electro-coagulation produced only partial epithelial damage. The combination of duct electrocoagulation and delayed tetracycline instillation at 14 days produced complete destruction of all gallbladder epithelium and an effective chemical cholecystectomy.
Subtotal cholecystectomy
Authors: Cottier D J , McKay C , Anderson J R 
Published: March 2007

Abstract
Subtotal cholecystectomy has been carried out on 11 patients during a 5-year period, constituting 3.8 per cent of cholecystectomies performed during this time. The indications were severe inflammation/fibrosis in six patients, portal hypertension in three and the Mirizzi syndrome in two patients. There were no deaths and only minor in-hospital morbidity. One patient developed a common bile duct stone 21 months after the operation. None of the remaining patients has to date developed postcholecystectomy sequelae (mean follow-up period 29 (range 1–62) months). Subtotal cholecystectomy is a safe, straightforward and definitive operation in patients for whom standard cholecystectomy could be dangerous, and is a more attractive proposition than cholecystostomy.
Treatment of severe postvagotomy/postgastrectomy symptoms with the somatostatin analogue octreotide
Authors: Mackie C R , Jenkins S A , Hartley M N 
Published: March 2007

Abstract
Fourteen patients with severe and persistent postvagotomy/postgastrectomy symptoms were entered into a trial of treatment with the somatostatin analogue octreotide, 50 μg twice daily 30 min before meals being self-administered by subcutaneous injection. Six of the seven patients completing the 3-month trial showed sustained overall improvement of symptoms. The remaining patients were unhelped by treatment or developed unwanted effects. Six of eight patients with dumping syndrome showed sustained improvement of dumping symptoms during treatment. Bile vomiting was relieved in three of four patients with this complaint. Diarrhoea accompanying dumping showed a variable response to treatment, with improvement in three patients and no change or worsening of this symptom in five. Two patients with severe postvagotomy diarrhoea alone showed no improvement. Four patients with unwanted effects and three patients who found no benefit stopped the trial medication early. Four further patients reported mild or transient side-effects. For patients with severe postvagotomy/postgastrectomy symptoms, a trial of octreotide seems justified when significant dumping symptoms are present and other treatment options have been exhausted.
Comparison of minimal and conventional surgery in patients with bleeding peptic ulcer: A multicentre trial
Authors: Poxon V A , Keighley M R B , Dykes P W , Heppinstall K , Jaderberg M 
Published: March 2007

Abstract
A multicentre randomized prospective trial compared minimal surgery (under-running the vessel or ulcer excision and adjuvant ranitidine) with conventional ulcer surgery (vagotomy and pyloroplasty or partial gastrectomy) for the treatment of bleeding peptic ulcer. This report is based on 137 patients (eight withdrawn through misdiagnosis or lost data), of whom 62 received conservative surgery and 67 conventional operation. Twenty-nine patients died, 16 (26 per cent) after conservative surgery and 13 (19 per cent) after conventional operations. The only significant difference between the groups was the incidence of fatal rebleeding, which occurred in six patients after conservative surgery compared with none after conventional surgery (P &lt; 0.02, Fisher's exact test).
Palliation of malignant dysphagia with laser therapy: Predictability of results
Authors: Mason R C , Bright N , McColl I 
Published: March 2007

Abstract
This study reports the results of 189 patients treated by laser therapy for malignant dysphagia. Ninety-one per cent of patients derived benefit from treatment, but the long-term survival rate was poor, with only 12 per cent of patients surviving for 6 months. Survival was not influenced by either tumour length, site or histological type. Patients with adenocarcinomas initially showed improved swallowing after laser treatment compared with those with squamous tumours, but this difference had disappeared by 2 months. The results of laser treatment were not influenced by either tumour length or site.
Transhiatal oesophagectomy for oesophageal carcinoma
Authors: Gürkan N , Terzioglu T , Tezelman S , Sasmaz O 
Published: March 2007

Abstract
Between 1979 and 1990 transhiatal oesophagectomy and reconstruction with stomach was performed in 148 patients with carcinoma of the oesophagus. Ninety-seven patients were men and 51 were women; ages ranged from 21 to 88 years with a mean of 57.4 years. Dysphagia and weight loss were the usual clinical symptoms. The mean duration of symptoms was 14 weeks. Squamous cell carcinoma was present in 129 patients (87.2 per cent), 18 patients (12.2 per cent) had adenocarcinoma, and one had lymphoma (0.7 per cent). In two-thirds of the patients tumours were located in the middle thoracic (50 of 148 patients) or distal thoracic oesophagus (59 of 148 patients). Three-quarters of the patients had tumours determined as stage III. The mean length of hospital stay after operation was 12.8 days. Anastomotic leakage occurred in 15 cases (10.1 per cent). Pulmonary complications other than pneumothorax were observed in 36 cases (24.3 per cent). The 30-day postoperative mortality rate was 8.1 per cent (12 of 148 patients). Respiratory insufficiency was observed as the major cause of death (six of 12 patients). Mediastinitis due to necrosis of the transposed stomach in the mediastinum was the cause of death in three cases. Two-year actuarial survival rates in patients with cervical, upper, middle and lower thoracic tumours were 20, 22, 26 and 30 per cent respectively. Transhiatal oesophagectomy is safe and offers limited morbidity and mortality, although pulmonary complications and anastomotic leakage in the early postoperative period still pose a significant risk, especially for elderly patients in poor condition.
Staple-line erosion: A common source of recurrent bleeding following stapled oesophageal transection
Authors: Kaye G L , McCormick P A , Siringo S , Hobbs K E F , McIntyre N , Burroughs A K 
Published: March 2007

Abstract
Recurrent bleeding after stapled oesophageal transection was studied in 73 patients with cirrhosis transected for acute variceal bleeding. The most frequent source of bleeding was partial or total circumferential oesophageal erosion at the transection: staple-line erosion. This lesion occurred in 36 (49 per cent) patients and was the source of rebleeding in 29 (40 per cent) patients with 54 episodes. Rebleeding in 22 (30 per cent) patients was due to varices in nine (12 per cent), peptic ulcer in six (8 per cent), gastric erosions in two (3 per cent) and unknown sources in five (7 per cent), accounting for 33 episodes. The mean(s.e.m.) blood transfusion requirement for bleeding from staple-line erosions was 1.5(0.25) units per bleed versus other sources, 6.5(1.0) units per bleed (P &lt; 0.001). Staple-line erosion was present at the first postoperative endoscopy in 11 (15 per cent) patients but the time to appearance varied widely. The lesion was more common in patients with Pugh's grade A liver disease at the time of transection, reflecting the increased survival rate of these patients. Staple-line erosion is a common source of minor recurrent bleeding following stapled oesophageal transection.
Perioperative blood transfusion does not promote recurrence and death after mastectomy for breast cancer
Authors: Eickhoff J H , Andersen J 
Published: March 2007

Abstract
Several reports suggest that perioperative blood transfusion promotes recurrence and death after cancer surgery. We studied the effect of transfusion in 1599 patients who had mastectomy for carcinoma of the breast. In 228 transfused patients the disease recurred in 110 (48 per cent), compared with 647 (47 per cent) of 1371 non-transfused patients (P = 0.85). The 5-year recurrence-free survival rate was 0.54 in the transfused patients and 0.60 in the non-transfused group (P = 0.44). The transfused patients had a higher prevalence of risk factors than the non-transfused patients. Cox's multiple regression analysis confirmed that perioperative blood transfusion was of no importance. The study does not support the hypothesis that perioperative blood transfusion promotes recurrence after operation for breast cancer.
Effect of low molecular weight heparin on intimal hyperplasia
Authors: Wilson N V , Kakkar V V , Salisbury J R 
Published: March 2007

Abstract
Intimal hyperplasia is a significant cause of vascular graft failure. To investigate the potential uses of low molecular weight heparins (LMWHs) as prophylactic agents against graft thrombosis in humans, the anti-proliferative effects of a regimen of subcutaneous LMWH have been studied in an experimental model. Aortic intimal hyperplasia was created in 30 New Zealand White rabbits by endothelial denudation using an embolectomy balloon catheter technique. Three groups of ten animals were randomized to act as controls or to be treated with subcutaneous LMWH once or twice daily for 4 weeks. At 4 weeks all animals were killed and the aortas were harvested for analysis. The degree of intimal hyperplasia was measured using a computerized image analysis system and was expressed as an intimal:medial area ratio and also as percentage luminal reduction. A 60 per cent reduction in the degree of intimal hyperplasia was seen following treatment with LMWH. Heparin-treated animals had considerably less luminal reduction (daily LMWH 8 per cent and twice-daily LMWH 10 per cent) compared with untreated controls (26 per cent) (P &lt; 0.001). There was a similar difference seen in the intima:media area ratios, daily LMWH 0.38, and twice-daily LMWH 0.44, versus controls, 1.11 (P &lt; 0.001). In an experimental model, subcutaneous LMWH therapy effectively inhibits intimal hyperplasia.
Peripheral parenteral nutrition: Effect of a standardized compounded mixture on infusion phlebitis
Authors: Nordenström J , Jeppsson B , Lovén L , Larsson J 
Published: March 2007

Abstract
The incidence and severity of infusion phlebitis was evaluated prospectively in 142 surgical patients who received peripheral parenteral nutrition (PPN) for a total of 700 days. In a first study phase 83 patients were given PPN for a total of 424 days. All nutrient solutions were delivered over a 12-h period from a 3-litre bag and the infusion sites rotated daily. These methods resulted in an incidence of phlebitis of 18 per cent, 75 per cent of the patients being fed successfully by PPN until resumption of oral nutrition. In an attempt to assess the importance of the method of delivering nutrient solutions, the next 59 patients were randomized to receive PPN as a compounded mixture or by a conventional technique with simultaneous infusion from separate bottles. Infusion phlebitis was significantly more frequent (P &lt; 0.001) in patients infused with separate bottles. There was no difference between the groups with regard to duration of nutrition or the need to establish central venous access. We conclude that PPN is a safe and cost-effective means of providing total parenteral nutrition in most surgical patients. The use of compounded mixtures significantly reduces the incidence of phlebitis without increasing total costs.
Popliteal artery entrapment syndrome
Authors: Murray A , Halliday M , Croft R J 
Published: March 2007

Abstract
Popliteal artery entrapment syndrome is an uncommon cause of peripheral vascular disease in young fit individuals, presenting as progressive claudication or sudden limb ischaemia. It can also present later in life with insidious symptoms relating to popliteal thrombosis or aneurysm. As a local cause of atherosclerosis in the popliteal artery it is probably under-diagnosed, as clinical and radiological features are subtle and varied. Early diagnosis and surgical division of aberrant muscular relations result in an excellent clinical result. Late surgical treatment with vein grafting is less durable. The disease incidence, clinical features, pathology, investigations, treatment and prognosis are reviewed.
Rapid-bolus contrast-enhanced dynamic computed tomography in acute pancreatitis: A prospective study
Authors: London N J M , Leese T , Lavelle J M , Miles K , West K P , Watkin D F L , Fossard D P 
Published: March 2007

Abstract
The purpose of this prospective study was to determine the clinicopathological significance of necrotic areas demonstrated by rapid-bolus contrast-enhanced computed tomography (CT) in patients with biochemically predicted severe pancreatitis. Although CT necrosis occurred significantly more frequently in patients with clinically severe (ten of 12) compared with mild (seven of 20) pancreatitis (P &lt; 0.025), seven of 17 (41 per cent) patients with CT necrosis developed clinically mild pancreatitis and six of ten (60 per cent) patients with clinically severe pancreatitis and CT necrosis recovered with conservative management. The site and extent of CT necrosis did not correlate with disease severity. Fine-needle aspiration cytology, operative and post-mortem findings and endoscopic retrograde cholangiopancreatography examinations all strongly suggested that CT necrosis represents true pancreatic necrosis. We conclude that the finding of CT necrosis is not in itself an indication for operative intervention, but that rapid-bolus contrast-enhanced dynamic CT greatly facilitates the planning and execution of surgical therapy.
Oesophageal and severe gut involvement in the haemolytic uraemic syndrome
Authors: de La Hunt M N , Rangecroft L , Morris K P , Coulthard M G 
Published: March 2007

Abstract
Between 1982 and 1989, 78 children with diarrhoea-associated haemolytic uraemic syndrome (HUS) were referred to this hospital. Most presented with abdominal pain, bloody diarrhoea and vomiting. Seven had severe gastrointestinal involvement, four of whom required resection for bowel perforation or necrosis. One also developed an oesophageal stricture, a previously unreported complication of HUS. These seven children had a high incidence of other complications including hypertension, and cerebral and pancreatic involvement. One died from severe cerebral involvement, one has a residual neurological deficit and one has residual renal impairment. Severe gastrointestinal involvement did not significantly affect the long-term outcome. Simple haematological indices helped predict severe gut involvement. Four of the 78 children had undergone appendicectomy before the diagnosis of HUS was made. The operative findings were in no case typical of primary acute appendicitis, although histological examination did confirm inflammation of the appendix in two patients. Diagnosis is difficult in early disease, but increased awareness may help prevent unnecessary appendicectomy.
Failed femorocrural reconstruction does not prejudice amputation level
Authors: Tsang G M K , Crowson M C , Hickey N C , Simms M H 
Published: March 2007

Abstract
From January 1985 to December 1989, 500 consecutive patients presented to a single vascular unit with limb-threatening acute or critical ischaemia. Vascular reconstruction was attempted unless the patient had insufficient viable tissue to permit weight bearing or complete absence of run-off vessels in the calf. Fifty patients underwent a primary amputation and 450 patients underwent vascular reconstruction, of whom 265 had a femorocrural bypass. Sixty secondary amputations were performed following femorocrural bypass failure. The below-knee amputation to above-knee amputation ratio (BKA:AKA) was 2.0 in the primary amputation group and 1.1 in the secondary amputation group. Direct comparison between the two groups is not valid as they are clinically different. The combined BKA:AKA ratio was 1.4. This compares favourably with the BKA:AKA ratio of recent published series and figures from the National Amputation and Limb Fitting Services. It suggests that an unselective policy of vascular reconstruction for critical ischaemia does not lead to a higher proportion of above-knee amputations.
Lasers in surgery
Authors: Murray A , Mitchell D C , Wood R F M 
Published: March 2007

Abstract
In January 1991 the winter meeting of the Surgical Research Society was held at St. Bartholomew's Hospital and the Institute of Education, London. During the meeting a symposium was held entitled ‘Shedding light on lasers’. Speakers addressed the general principles of lasers, laser–tissue interactions and the applications of lasers in gastroenterology and in vascular disease. This was followed by an open discussion of the current indications, complications and outcome, together with future possible applications for lasers in medicine.
Bacteriology of anal fistulae
Authors: Seow-Choen F , Hay A J , Heard S , Phillips R K S 
Published: March 2007

Abstract
Anal fistulae are said to arise from cryptoglandular infection of the anal glands, which lie within the intersphincteric space. The type and virulence of the micro-organism responsible may determine whether an analfistula develops. The microbiology of chronic anal fistulae has not been reported previously. Twenty-five consecutive anal fistulae were studied prospectively (eight intersphincteric fistulae, 12 trans-sphincteric fistulae, two suprasphincteric fistulae, one extrasphincteric fistula, one superficial fistula, one anovaginal fistula). There were 18 men and seven women, with a median age of 42 (range 22–71) years. Patients with Crohn's disease or acute anorectal suppuration were excluded. In 18 patients, 0.1 ml granulation tissue from the track of the fistula was obtained and processed within 4 h using standard microbiological techniques. Sixty-nine isolates representing at least 17 species were obtained. The predominant organisms were Escherichia coli (22 per cent), Enterococcus spp. (16 per cent) and Bacteroides fragilis (20 per cent). The majority of the growths were obtained only from enrichment. Bacteria from only one patient grew at a dilution of 103. Granulation tissue from 25 patients was processed for mycobacterial culture, and Mycobacterium tuberculosis was grown from one patient. No other mycobacterium was isolated. The chronic inflammation in anal fistulae does not seem to be maintained by either excessive numbers of organisms or organisms of an unusual type.
Multiple-fibre low-power interstitial laser hyperthermia: studies in the normal liver
Authors: Steger A C , Lees W R , Shorvon P , Walmsley K , Bown S G 
Published: March 2007

Abstract
Multiple four-fibre low-power interstitial laser hyperthermia was performed in the canine liver to establish the parameters with which large areas of thermal necrosis could be made. Using 1.5 W for 670s (4020 J in total) and a fibre spacing of 1.5 cm, lesions with dimensions of 3.6 × 3.1 × 2.8 cm were achieved in 75 per cent of those attempted. There was no mortality and a low morbidity rate. These lesions could be visualized in both their development and resolution using ultrasonography. Healing occurred by 1 year. Temperatures in the centre of the heated region were 60°C, which is more than enough to cause thermal cell death. There was good correlation between the temperatures recorded, the sonographic changes seen, and the pathological evidence of necrosis. Multiple-fibre low-power interstitial laser hyperthermia performed with ultrasonic guidance may be of use in the treatment of liver tumours.
Age-standardized incidence of ruptured aortic aneurysm in a defined Swedish population between 1952 and 1988: mortality rate and operative results
Authors: Drott C , Arfvidsson B , Örtenwall P , Lundholm K 
Published: March 2007

Abstract
The incidence and mortality rate of ruptured aortic aneurysm in a defined and stable Swedish population was determined for the period 1952-1988. The annual rupture rate of abdominal aneurysm rose significantly from 0.9 per 100 000 inhabitants in the 1950s to 6.9 in the 1980s. After standardization for age, the mortality rate increased between 1960 and 1988 by 2.4 per cent annually (95 per cent confidence interval 1.2–3.6 per cent, P = 0.0004). Comparable figures from the UK during the 1980s have been reported to be two to three times higher. The mortality rate of ruptured thoracic aneurysm in the Swedish population did not increase when adjusted for age. In the 1980s the overall mortality rate of ruptured abdominal aneurysm was 85 per cent. Death occurred outside surgical clinics in 52 per cent of cases; 37 per cent of the total number of patients with ruptured aneurysm reached the operating table but only 30 per cent underwent aortic reconstruction. Patients treated by vascular surgeons had lower blood loss and transfusion needs, shorter aortic clamp time and operation time, and lower mortality rate than patients treated by non-specialized general surgeons. Specialized vascular surgeons also completed the reconstruction, and used straight grafts, in a higher proportion of cases than general surgeons.
Predictors of lymph node metastasis in early gastric cancer
Authors: Maehara Y , Orita H , Okuyama T , Moriguchi S , Tsujitani S , Korenaga D , Sugimachi K 
Published: March 2007

Abstract
Data were analysed on 396 patients with early gastric cancer who underwent resection in this department; special reference was made to lymph node metastasis. Metastases were present in the dissected lymph nodes of 47 patients (11·9 per cent). The survival rate for patients with metastasis to lymph nodes was lower than for those without such metastasis (P &lt; 0·05). Lymph node metastasis was associated with larger tumour, a higher incidence of submucosal invasion, a higher rate of lymphatic vessel involvement, an advanced stage of disease and a non-curative resection rate of 6·4 per cent. Multivariate analysis showed that the independent risk factors for lymph node metastasis in patients with early gastric cancer were large tumour size, lymphatic vessel involvement and invasion into the submucosal layer. In patients with these risk factors, lymph node dissection and postoperative adjuvant therapy should be performed in an attempt to prevent recurrence in the form of lymph node metastasis.
Appraisal of percutaneous tracheostomy
Authors: Leinhardt D J , Mughal M , Bowles B , Glew R , Kishen R , MacBeath J , Irving M 
Published: March 2007

Abstract
Two commercially available kits have been used to create 25 percutaneous tracheostomies, 20 using the Cook system and five using the Rapitrac system. The operation time and complication rates of these tracheostomies have been compared with those for 16 conventional tracheostomies performed for similar indications. Median operating times were 60 (range 30–105) min for conventional tracheostomy, 15 (range 8–70) min for Cook and 5 (range 3–15) min for Rapitrac systems (P &lt; 0·001). A significantly higher proportion of patients in the Rapitrac group had complications compared with the other two groups (P &lt; 0·05). The complication rate for the Cook group compared favourably with that for the conventional tracheostomy group. The Cook system of percutaneous tracheostomy is a simple, rapid and safe alternative to conventional tracheostomy.