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PubMed2001

Helicobacter pylori eradication in functional dyspepsia: new evidence for symptomatic benefit.

Several large studies investigating the benefit of eradicating Helicobacter pylori in patients with functional dyspepsia have reported varying results, and therefore questions about the clinical management of H. pylori infection remain. The ELAN study, a recent large multicentre, randomized study, compared eradication of H. pylori (with lansoprazole and antibiotics) with acid-suppressant treatment alone (lansoprazole) in H. pylori-associated functional dyspepsia. Investigators found that eradication led to improvement of dyspeptic symptoms. Although the symptomatic benefit was limited to a small subset of patients (approximately 9%) with H. pylori-positive functional dyspepsia, cure of chronic gastritis can be offered to the majority of patients (approximately 80%) and thus, in addition to the elimination of symptoms in some, the key risk factor for gastroduodenal pathology is eliminated. This study provides support for the recommendations of Maastricht 2, which found that H. pylori eradication is an appropriate therapeutic option for functional dyspepsia.

2-Pyridinylmethylsulfinylbenzimidazoles↗

PubMed2001

The complete normalization of the adrenocortical function as the criterion of cure after transsphenoidal surgery for Cushing's disease.

Transsphenoidal microsurgery is the standard treatment for patients with Cushing's disease. However, there is general lack of agreement regarding the definition of cure. We studied 58 patients with corrected hypercortisolism after transsphenoidal surgery for Cushing's disease. Plasma and urinary cortisol levels were measured after surgery. After the postsurgical hypocortisolism stage (or periodically in patients without hypocortisolism), urinary free cortisol, plasma cortisol at 0800 h and 2300 h, morning cortisol after 1 mg dexamethasone, and cortisol response to insulin-induced hypoglycemia were performed. Patients were classified in 3 groups: group I, patients with transient hypocortisolism and normal hypothalamus-pituitary-adrenal axis afterwards; group II, patients with transient hypocortisolism and abnormalities in the circadian rhythm or the stress response afterwards; and group III, patients without postoperative hypocortisolism. Thirty-three patients were included in group I, 8 in group II, and 17 in group III. Groups I and II were similar in postsurgical plasma cortisol (46.9 +/- 30.3 vs. 60.7 +/- 38.6 nM) and mean follow-up (69.8 vs. 68.8 months) but were significantly different in their recurrence rate (3.4% vs. 50%, P < 0.001). Patients in group III had normal postsurgical plasma and urinary cortisol but persistent abnormalities in circadian rhythm and stress response. After a mean follow-up of 39.1 months, their recurrence rate was similar to that of group II (64.7% vs. 50%). The complete normalization of the adrenocortical function, which is always preceded by postsurgical hypocortisolism, is associated with a very low recurrence risk and should be considered, in our opinion, the main criterion of surgical cure in Cushing's disease.

Adrenal Cortex↗

PubMed1998

[Diagnosis and therapy of laryngeal carcinoma].

Therapeutic choice in laryngeal carcinoma is influenced by the nature of the tumor and a variety of factors involving the patient and physician. Small (T1) and exophytic (T1, T2) tumors are suitable for radiotherapy. Limited lesions (T1, T2) can be cured by functional endoscopic resection techniques or external partial laryngectomies. Extensive tumors (large T2; T3) are treated by total laryngectomy or by primary irradiation, especially in the case of a good response to induction chemotherapy. When radiation treatment fails, surgery succeeds in more than half of the cases. Tumors infiltrating or transgressing the laryngeal framework (T4) can only be cured by total laryngectomy followed by radiotherapy. Subtotal or circular ablation of the adjacent pharynx or esophagectomy needs repair with visceral or myocutaneous grafts. Lymphatics are preferentially treated with the same modality as used in the primary disease. Inconspicuous lymphatics should be treated electively in most cases, with the exception of early glottic cancer.

Chemotherapy, Adjuvant↗

PubMed2005

Radical radiotherapy for early glottic cancer: Results in a series of 1087 patients from two Italian radiation oncology centers. I. The case of T1N0 disease.

PURPOSE: To retrospectively evaluate local control rates, late damage incidence, functional results, and second tumor occurrence according to the different patient, tumor, and treatment features in a large bi-institutional series of T1 glottic cancer. METHODS AND MATERIALS: A total of 831 T1 glottic cancer cases treated consecutively with radical intent at the Florence University Radiation Oncology Department (FLO) and at the Radiation Oncology Department of the University of Brescia-Istituto del Radio "O. Alberti" (BS) were studied. Actuarial cumulative local control probability (LC), disease-specific (DSS), and overall survival (OS) rates have been calculated and compared in the different clinical and therapeutic subgroups with both univariate and multivariate analysis. Types of relapse and their surgical salvage have been evaluated, along with the functional results of treatment. Late damage incidence and second tumor cumulative probability (STP) have been also calculated. RESULTS: In the entire series, 3-, 5-, and 10-year OS was equal to 86%, 77%, and 57%, respectively. Corresponding values for LC were 86%, 84%, and 83% and for DSS 96%, 95%, and 93%, taking into account surgical salvage of relapsed cases. Eighty-seven percent of the patients were cured with function preserved. Main determinants of a worse LC at univariate analysis were: male gender, earlier treatment period, larger tumor extent, anterior commissure involvement, and the use of Cobalt 60. At multivariate analysis, only gender, tumor extent, anterior commissure involvement, and beam type retained statistical significance. Higher total doses and larger field sizes are significantly related (logistic regression) with a higher late damage incidence. Scatterplot analysis of various combinations of field dimensions and total dose showed that field dimensions >35 and <49 cm2, together with doses of >65 Gy, offer the best local control results together with an acceptably low late damage incidence. Twenty-year STP was equal to 23%, with second tumor deaths being more frequent than larynx cancer deaths (67 of 831 vs. 46/831). CONCLUSION: The results of this study support the opinion, suggested by some international guidelines, that radiotherapy is standard treatment for T1 glottic cancer. Better results are obtained in patients with less extended disease and with 4-6 MV photon beams. The use of doses in excess of 65 Gy and of field sizes of 36-49 cm2 is probably the best technical choice available. Late damage is infrequent, but careful follow-up is warranted to detect early not only relapses (because conservative salvage surgery is feasible), but also second malignant tumors, which constitute the main cause of death in these patients and are potentially curable.

Adult↗

PubMed2004

Bereavement outcomes for parents who lose a child to cancer: are place of death and sex of parent associated with differences in psychological functioning?

Despite increasing cure rates, cancer is a leading cause of non-accidental death in childhood. Models of psychosocial care in pediatric cancer may therefore need to address bereavement planning for a 'minority group' of parents (approximately 25%) for whom cure of their child is not possible. This study addresses a gap in knowledge concerning long-term bereavement and psychological outcomes for parents, as a function of the sex of the parent and the place of the child's death: home versus hospital. Fifty Australian parents (25 father-mother dyads), whose child had died at least 1 year prior to study participation, independently completed measures of psychological functioning (depression, anxiety and stress), family functioning, and pathological grieving (separation distress, and traumatic distress). The results showed some support for a hypothesized interaction between place of death and sex of parent. Fathers reported significantly higher levels of depression, anxiety and stress when the child died in hospital rather than at home. By way of contrast, differences for mothers as function of place of death were not reflected in psychological outcomes but were more closely tied to symptoms of pathological grieving. The findings are discussed with respect to the needs for services for surviving adult family members, especially for fathers who may have an enhanced psychological vulnerability after the death of a child in hospital rather than at home.

Adaptation, Psychological↗

PubMed2005

Radical radiotherapy for early glottic cancer: Results in a series of 1087 patients from two Italian radiation oncology centers. II. The case of T2N0 disease.

PURPOSE: To retrospectively evaluate local control rates, late damage incidence, functional results, and second-tumor occurrence according to the different patient, tumor, and treatment features in a large bi-institutional series of T2 glottic cancer. METHODS AND MATERIALS: A total of 256 T2 glottic cancer cases treated consecutively with radical intent at the Florence University Radiation Oncology Department (FLO) and at the Radiation Oncology Department of the University of Brescia, Istituto del Radio "O. Alberti" (BS) were studied. Cumulative probability of local control (LC), disease-specific survival (DSS), and overall survival (OS) rates were calculated and compared in the different clinical and therapeutic subgroups by both univariate and multivariate analysis. Types of relapse and their surgical salvage were evaluated, along with the functional results of treatment. Late-damage incidence and second-tumor cumulative probability (STP) were also calculated. RESULTS: In the entire series, 3-year, 5-year, and 10-year OS rates were, respectively, 73%, 59%, and 37%. Corresponding values for cumulative LC probability were 73%, 73%, and 70% and for DSS, 89%, 86%, and 85%, taking into account surgical salvage of relapsed cases. Seventy-three percent of the patients were cured with function preserved. Main determinants of a worse LC at univariate analysis were larger tumor extent and impaired cord mobility. At multivariate analysis, the same factors retained statistical significance. Twenty-year STP was 23%, with second-tumor deaths less frequent than larynx cancer deaths (20 of 256 vs. 30 of 256). Incidence of late damage was higher in the first decade of accrual (22%) than in the last decade (10%, p = 0.03); the same was true for severe late damage (9% vs. 1.8%). CONCLUSION: Present-day radical radiotherapy can be considered a standard treatment for T2 glottic cancer. Better results are obtained in patients with less extended disease. Late damage is relatively infrequent, but a careful follow-up is warranted for early detection not only of relapses (because salvage surgery is feasible) but also of second malignant tumors, which constitute a relevant but not the leading cause of death in these patients and are potentially curable.

Adult↗

PubMed1993

[Diagnosis of acute infectious epidural inflammation. Role of magnetic resonance imaging].

External pachymeningitis, usually caused by Staphylococcus aureus, is a rare pathological entity which is difficult to diagnose at an early stage, has a poor functional prognosis and often requires an emergency surgical treatment. We report three cases in which magnetic resonance imaging provided an early diagnosis of the epidural space infection before severe neurological deficits, such as paraparesis and/or paraplegia, set in. Following an anti-staphylococcal treatment with fluoroquinolone and beta-lactamase-resistant beta-lactam antibiotics with good bone penetration administered intravenously during 4 to 6 weeks, then orally for 5 to 6 months cure without functional sequelae was obtained in all three patients.

Acute Disease↗

PubMed2006

Universality class of the critical point in the restricted primitive model of ionic systems.

A coarse-grained description of the restricted primitive model is considered in terms of the local charge- and number-density fields. Exact reduction to a one-field theory is derived, and exact expressions for the number-density correlation functions in terms of higher-order correlation functions for the charge-density are given. It is shown that in continuum space the singularity of the charge-density correlation function associated with short-wavelength charge-ordering disappears when charge-density fluctuations are included by following the Brazovskii approach. The related singularity of the individual Feynman diagrams contributing to the number-density correlation functions is cured when all the diagrams are segregated into disjoint sets according to their topological structure. By performing a resummation of all diagrams belonging to each set a regular expression represented by a secondary diagram is obtained. The secondary diagrams are again segregated into disjoint sets, and the series of all the secondary diagrams belonging to a given set is represented by a hyperdiagram. A one-to-one correspondence between the hyperdiagrams contributing to the number-density vertex functions, and diagrams contributing to the order-parameter vertex functions in a certain model system belonging to the Ising universality class is demonstrated. Corrections to scaling associated with irrelevant operators that are present in the model-system Hamiltonian, and other corrections specific to the RPM are also discussed.

Journal Article↗

PubMedDate not supplied

Effect of primer solvent and curing mode on dentin shear bond strength and interface morphology.

UNLABELLED: There is a need to study the main and interactive bonding effects of differences in solvent and curing mode used for adhesive monomers in dentin bonding systems. OBJECTIVE: Two solvents (acetone and ethanol) and curing methods (light cure, dual cure) were evaluated on their effects on bond strength and interfacial morphology. METHOD AND MATERIALS: The adhesives studied were based on two monomers, pyromellitate of glyceryl dimethacrylate (PMGDM) and 2-hydroxy ethyl methacrylate (HEMA). Four groups of eight teeth each were cut to expose planar dentin sections and treated with (a) light-cure system with acetone as solvent (LCA group); (b) light-cure system with ethanol as solvent (LCE group); (c) dual-cure system with acetone as solvent (DCA group); and (d) dual-cure system with ethanol as solvent (DCE group). The treated sections were tested for shear bond strength to composite discs and interfacial morphology. RESULTS: The mean (standard deviation) of shear bond strength values (MPa) for the different groups were: LCA: 11.8 (2.3); LCE: 12.7 (2.7); DCA: 24.9 (9.3); and DCE: 21.6 (9.6). All bonded sections were characterized by a similar hybrid layer, resin tags, and overall interfacial morphology. CONCLUSION: There was a significant difference in shear bond strength as a function of cure mode, but not of solvent. The mean bond strength was higher for dual-cure systems studied. Oxygen inhibition effects may account for the difference between light-cure and dual-cure types.

Acetone↗

PubMed2000

Adhesive bonding of titanium with a thione-phosphate dual functional primer and self-curing luting agents.

A consistent bond between the metal framework and the luting agent is desired when resin-bonded prostheses are constructed with titanium. The purpose of this study was to evaluate three different metal primers on titanium bonding. Two sources of titanium (machined 99.9% titanium and cast Titan Ingot JS2) were used. Disk specimens were bonded with eight combinations of three primers and two luting agents (Panavia 21 and Super-Bond C&B), including two controls. Shear bond strengths were determined after 24-h water storage and after 10,000 cycles of thermocycling. Bond strengths were influenced by thermocycling, primer, luting agent and their combinations, but no significant differences were found between the machined 99.9% titanium and the cast ingot. The thione-phosphate dual functional primer (Alloy Primer) was comparable to the phosphate primer (Cesead II Opaque Primer) and the thiophosphate primer (Metal Primer II) for bonding the titanium metals examined. The most durable bond was obtained in three combinations of these primers and one luting agent (Super-Bond C&B).

Analysis of Variance↗

PubMed1997

Local and distant skin flaps in the reconstruction of vulvar deformities.

OBJECTIVES: The purpose of this study was to evaluate the safety and efficacy of skin flaps in vulvar reconstructive surgery. STUDY DESIGN: A retrospective review was performed on 207 consecutive flaps on 191 assessable women referred between 1992 and 1996. Outcome measures were wound closure, healing, restoration of coital function, and final result after any secondary revision. RESULTS: Primary closure without tension was possible in all but one instance, and 186 (89.9%) wounds healed by primary intention. Of 146 contractures, 95.8% were reparable by simple sliding flaps (YV advancement or "maple leaf"). Conversely, all the 99 tissue deficits required a pivoting design (random transposition, Martius, pudendal thigh, and gracilis or gluteus myocutaneous flaps). Primary success rates decreased sharply with worsening deformity, underlying disease, and complexity of flap design. There were 65 complications among 42 individuals, and 21 women required subsequent Z plasty or a second flap. Nonetheless, disease was cured and function restored in 178 (93.2%) patients. CONCLUSIONS: Sliding or pivoting vulvar flaps are generally reliable. Complex flaps are more difficult, but there are seldom any simpler surgical options.

Adolescent↗

PubMed1998

Functional results after perineal complications of ileal pouch-anal anastomosis.

PURPOSE: This study investigated the functional significance of perineal complications after ileal pouch-anal anastomosis. METHODS: Review of a prospective registry of 628 patients was undertaken. Bowel function was assessed by detailed functional questionnaire. Statistical analyses were performed using chi-squared and Fisher's exact probability tests. RESULTS: Of 628 patients, 153 (24.4 percent) had 171 perineal complications. The 277 control patients had no complications. Complications included 66 (10.5 percent) anastomotic strictures, 28 (4.5 percent) anastomotic separations, 36 (5.7 percent) pouch fistulas, 41 (6.5 percent) episodes of pelvic sepsis, and 18 (2.9 percent) patients with multiple complications. After these complications were addressed, the pouch failure rate was low (10 percent); in 90 percent of patients, the pouch could be salvaged. Most pouch failures were the result of pouch fistulas, and most occurred in patients ultimately diagnosed with Crohn's disease. Functional results after cure of these perineal complications revealed no significant functional differences between control patients and those cured of anastomotic separations, anastomotic strictures, and pouch fistulas. Only a few minor differences were demonstrated in function after an episode of pelvic sepsis. The major deterioration in function occurred after treatment for multiple perineal complications. CONCLUSIONS: An appreciable number of perineal complications occur after ileal pouch-anal anastomosis. Pouch-perineal fistulas are associated with the highest pouch failure rate. The majority of these fistulas occur in patients ultimately diagnosed with Crohn's disease or indeterminate colitis. Although there is no substitute for good technique and sound clinical judgment in the success of ileal pouch-anal anastomosis, if perineal complications are successfully treated, functional outcome is equivalent to that in patients without perineal complications.

Anastomosis, Surgical↗

PubMedDate not supplied

[Myotomy of the esophageal body].

Extramucosal myotomy involving the external longitudinal and internal circular layers of the musculature of the esophagus represent the surgical therapy in patients with dysphagia and regurgitation or with angina-like chest pain secondary to functional abnormalities of the musculature of the esophagel body and sphincters. Surgery has a palliative function, because cures symptoms and complication such a diverticula, but not the disease. Modern surgical techniques also prevent recurrence of symptoms and complications are minimal with better long-term results than conservative therapy. Myotomy of the lower esophageal sphincter extended to the distal part of the esophageal body (Heller's operation) is performed as first choice or following insucces of dilatation in patients with primary achalasia of the esophagus, using a trans-abdominal or a trans-thoracic approach. Myotomy of the upper esophageal sphincter is indicated in patients with Zenker's diverticulum following diverticulectomy or diverticulopessy. Segmental myotomies are performed after diverticulectomy in patients with epiphrenic pulsion diverticula. Trans-thoracic "long" esophageal myotomy performed from the thoracic portion of the lower esophageal sphincter to the aortic arch is indicated in patients with diffuse esophageal spasm and nutcracker esophagus and sometimes in patients with aspecific abnormalities of the esophageal motor function associated with diverticula. Circular miotomies limited to the external longitudinal layer of the esophageal musculature can be performed at the level of anastomosis in order to gain tissue and reduce tissutal tension. The recent introduction of the endoscopic surgery allowed some of these operations to be performed through minimally invasive approaches. Therefore laparoscopic and thoracoscopic Heller's myotomy is feasible with clinical and functional results similar to those obtained with traditional open approach and with less postoperative discomfort and shorter hospital stay. This paper deals with the indications and surgical techniques of myotomies of the esophageal body both limited and extended to the lower esophageal sphincter.

Esophageal Diseases↗

PubMed1998

Randomised comparison of percutaneous angioplasty vs continued medical therapy for hypertensive patients with atheromatous renal artery stenosis. Scottish and Newcastle Renal Artery Stenosis Collaborative Group.

BACKGROUND: Data from randomised studies are lacking on the value of interventional procedures in the management of atheromatous renal artery stenosis. This randomised prospective trial compared the effects on blood pressure (BP) and renal function of percutaneous transluminal angioplasty vs medical therapy in hypertensive patients with both unilateral and bilateral disease. METHODS: A total of 135 eligible patients were identified, of whom 55 (44%) were randomised. Eligible patients had sustained hypertension, with a minimum diastolic BP of 95 mm Hg on at least two anti-hypertensive drugs. Renal artery stenosis was defined by renal angiography as at least 50% stenosis in the affected vessel. All patients were observed during an initial 4-week run-in period on a fixed drug regimen and subsequent changes measured from this 4-week baseline. RESULTS: Blood pressure fell during the run-in period in all groups. In patients with bilateral renal artery stenosis randomised to angioplasty, a statistically significant (P<0.05) fall in BP was observed at latest follow-up (range 3-54 months). The mean fall in BP at latest follow-up in the angioplasty group, corrected for the medical group response, was 26/10 mm Hg. In patients with unilateral renal artery stenosis, no statistically significant or clinically important differences in outcome were observed between the two groups. No significant differences or trends in serum creatinine were observed between or within any group during follow-up. Major outcome events (death, myocardial infarction, heart failure, stroke, dialysis) were similar in the angioplasty and medical groups during follow-up. In the 40/135 patients undergoing angioplasty, serious or potentially serious complications attributable to the procedure were observed in 11 patients, bleeding at the arterial site (8 patients) being the most frequent. CONCLUSIONS: In hypertensive patients with atheromatous renal artery stenosis, percutaneous renal angioplasty results in a modest improvement in systolic BP compared with medical therapy alone. This benefit was confined to patients with bilateral disease. No patient was 'cured', renal function did not improve, and intervention was accompanied by a significant complication rate.

Adult↗

PubMed2006

Bone marrow stromal cells can achieve cure of chronic paraplegic rats: functional and morphological outcome one year after transplantation.

Chronic paraplegia resulting from severe spinal cord injury (SCI) is considered to be an irreversible condition. Nevertheless, recent studies utilizing adult stem cells appear to offer promise in the treatment of this and other neurological diseases. Here, we show that progressive functional motor recovery is achieved over the course of the year following the administration of bone marrow stromal cells (BMSC) in traumatic central spinal cord cavities of adult rats with chronic paraplegia. At this time, functional recovery is almost complete and associated with evident nervous tissue regeneration in the previously injured spinal cord.

Animals↗

PubMed2006

Spontaneous pyogenic facet joint infection.

OBJECTIVE: To analyze the clinical features, approaches to management, and outcome of spontaneous pyogenic facet joint infection (PFJI) in adults. PATIENTS AND METHODS: Case series of 10 adults with microbiologically proven PFJI diagnosed during a 10-year period in a teaching hospital, plus a review of 32 additional cases previously reported (PubMed 1972 to 2003). Patients with prior spinal instrumentation or surgery and injection drug users were excluded. Only cases that were sufficiently detailed to be individually analyzed were included. These 32 cases, together with our 10 patients, form the basis of the present analysis. RESULTS: PFJI represented nearly 20% of all spontaneous pyogenic spinal infection diagnosed in our hospital during a 10-year period. This data suggest that PFJI is more common than was previously thought. Of the 42 patients with PFJI, 26 (62%) were men and 16 (38%) were women, with ages ranging from 20 to 86 years (mean age, 59+/-15 years); 55% of patients were older than 60 years. The most common location of infections was the lumbosacral region (86%). All patients presented with severe back pain; fever was noted in 83% of the cases and neurological impairment in nearly 48%. In 38% of patients a systemic predisposing factor for infection was present; the most common conditions were diabetes mellitus, malignancies, and alcoholism. In almost 36% of cases, one or more concomitant infectious processes due to the same microorganism was found, mainly arthritis, skin and soft-tissue infections, endocarditis, and urinary tract infections. Staphylococcus aureus was the most common etiologic microorganism (86% of cases). Bacteremia was documented in 81% of the cases. The diagnosis of PFJI was based mainly on imaging study findings. Paraspinal and/or epidural extension was frequent (81% of cases), but its presence did not indicate a worse prognosis. Medical treatment alone was usually successful. The overall prognosis of PFJI was good, with a mortality rate of only 2%. The great majority of patients were cured without functional sequelae. CONCLUSION: Incidence data from our institution reveal that PFJI is not a rare condition, representing approximately 20% of all pyogenic spinal infections. This entity should be considered in the differential diagnosis of patients with low back pain, especially in the presence of fever, whatever the patient's immunological status.

Adolescent↗

PubMed2000

[Percutaneous treatment of retroperitoneal abscesses].

UNLABELLED: The retroperitoneal abscess is an uncommon disease, that must be treated by drainage. The progressive use of the percutaneous drainage, under ultrasound or computed tomography guidance (CT), has changed the therapeutical management and has demonstrated to be a valid alternative to surgical drainage. From 1986 to 1998, 16 patients with retroperitoneal abscesses were treated by percutaneous drainage (14 with CT and 2 with ultrasound guidance). This method eradicated the abscess in 13 cases, in 2 was necessary a new function to cure the abscess, and 1 patient, with a severe sepsis, died. Percutaneous drainage was the unique treatment used in 12 patients. In the remaining four, the patients' clinical status improved after percutaneous drainage, and they were able to undergo subsequent elective nephrectomy. CONCLUSIONS: Percutaneous drainage of retroperitoneal abscesses has been established as a viable alternative to surgical intervention. This method can resolve the abscess or improve the patient' clinical status to undergo elective surgery.

Abscess↗

PubMed1985

The place of partial laryngectomy in the treatment of laryngeal cancer--a view from the U.K.

Attention is drawn to the problems of surgical resection by partial laryngectomy after full therapeutic dosage of Telecobalt irradiation. Material is presented from two treatment centres to indicate trends in surgical treatment and the complications experienced. Results will be given which confirm a reasonable expectation of cure and functional conservation by vertical partial laryngectomy for recurrence of glottic cancer after irradiation. The results of treatment of recurrent supraglottic cancer by horizontal partial laryngectomy gave more cause for concern in terms of complications and survival. In conclusion an attempt is made, based on the quoted experience, to define the position of conservation surgery in two centres for laryngeal cancer in the United Kingdom.

Adult↗