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A Altendorf-Hofmann

Publications and source records attributed to A Altendorf-Hofmann.

At least 37 records · Page 2Linked to original sources
PubMed1997

Treatment of bleeding esophageal varices with cyanoacrylate and polidocanol, or polidocanol alone: results of a prospective study in an unselected group of patients with cirrhosis of the liver.

BACKGROUND AND STUDY AIMS: Data concerning the results with emergency and further elective therapy of esophageal varices using polidocanol and cyanoacrylate, or polidecanol alone, in an unselected group of patients with liver cirrhosis have not previously been available. The aim of the present prospective study was to evaluate acute and repeated cyanoacrylate and polidocanol therapy in the emergency and long-term elective management of esophageal varices. METHODS: In accordance with the protocol of the present prospective study, acutely bleeding esophageal varices of grades 1 to 3 were treated endoscopically with polidocanol injection, while grade 4 varices, large solitary varices (over 5 mm) and otherwise uncontrollable cases of variceal bleeding were treated by injection of cyanoacrylate and polidocanol. Over a period of 62 months, 112 patients (65 men, 47 women) with acute bleeding from esophageal varices due to cirrhosis of the liver (69% alcohol-related) underwent a total of 245 treatment sessions in hospital. The average age of the patients was 62.0 +/- 12.3 years (58.1% were 60 or older). Hepatic function corresponded to Child-Pugh class A in 38 patients (33.9%), Child-Pugh class B in 68 patients (60.7%), and Child-Pugh class C in six (4.5%). RESULTS: Sixty-eight patients (60.7%) were treated with polidocanol alone, and 44 (39.3%) with cyanoacrylate and polidocanol. Acute hemostasis was achieved in all cases. In 5.7% of the sclerotherapy procedures, bleeding ulcers were observed, and a pleural effusion was seen in one case. The hospital mortality rate was 24.1%, resulting from the bleeding in 2.7% and due to liver failure in the remaining cases. Recurrent bleeding occurred within 24 hours in four patients (3.6%), and during the later course of the hospital stay in a further 11 patients (9.8%). The mean survival time was 13.7 +/- 17.7 months. Over the entire observation period of 23 +/- 21 months, 67 patients died (59.8%); the cause of death was hemorrhage in 4.5%, the underlying hepatic disease in 65.7%, and non-hepatic causes in 29.8%. Recurrent bleeding occurred in 58 patients (51.7%). The cumulative survival rate in the patients treated with cyanoacrylate and polidocanol was 66 +/- 15% and 26 +/- 32% after one and five years, respectively, and 56 +/- 13% and 33 +/- 19% in those treated with polidocanol alone. CONCLUSIONS: Endoscopic treatment of esophageal varices with cyanoacrylate and polidocanol, or polidocanol alone, is effective in controlling bleeding, and the complication rate is tolerable. The short-term and long-term mortality rates are determined largely by the underlying liver disease.

Adult↗
PubMed1997

Invasive carcinoma in colorectal adenomas: multivariate analysis of patient and adenoma characteristics.

BACKGROUND AND STUDY AIMS: The risk of invasive carcinoma developing in colorectal adenomas is influenced by a number of characteristics, relating both to the patients and to the adenomas, and by the composition of the sample analyzed. The aim of the present study was use a multivariate analysis to investigate the risk of invasive carcinoma in endoscopically and surgically removed adenomas. PATIENTS AND METHODS: Between 1978 and 1993, more than 20,000 polyps were prospectively documented at the Erlangen Registry of Colorectal Polyps. A multivariate analysis of 11,188 adenomas detected at the first total colonoscopy was carried out in order to investigate the risks associated with size and site--both of which can be assessed by endoscopic inspection alone- and the extent to which these may be modified by other patient and adenoma characteristics, with an influence on the risk of invasive carcinoma in colorectal adenomas. RESULTS: The size of the adenoma proved to be the most important influencing factor. Invasive carcinoma was never found in 5027 small adenomas (< or = 5 mm). Adenomas in the right colon had a lower risk than those in the left colon or rectum. But with increasing adenoma size, the malignancy rate showed a right-sided shift, with a significant interactive effect of size and right-sided location. However, the risk determined by the size and site of the adenoma was significantly modified by a number of patient and adenoma characteristics, including histological type, presence of multiple adenomas, and patient age and sex. CONCLUSIONS: The risk of invasive carcinoma in colorectal adenomas can only be adequately described by a complex model of the interactive effects of patient and adenoma characteristics on the main factors of size and site.

Adenoma↗
PubMed1996

[Prospective study of diagnosis, therapy and follow-up of acute gastrointestinal hemorrhage in 397 patients].

The mortality of acute GI hemorrhage in the literature varies considerably, depending on the study design and quality of the data evaluated. We therefore conducted a prospective study over 2.5 years of 397 patients with suspected acute GI hemorrhage at the University hospital of Erlangen for internal quality control. In 99% of cases diagnostic endoscopy identified one or more bleeding sources. 46% of the patients bled from duodenal or gastric ulcers, 21% from esophageal or gastric varices and 33% from other sources. 228 of the 397 patients (57%) were initially treated endoscopically, 76 patients (19%) experienced a recurrence of bleeding. Patients older than 60 years of age with a hemoglobin below 8 g/dl had a significantly higher rate of recurrent bleeding. The rate of complications during the hospital stay was 22% (n = 87), in-hospital mortality 17% (n = 68). The rates of recurrent bleeding (28 vs. 20%), complications (24 vs. 18%) and mortality (20 vs. 14%) were significantly higher for bleeding varices than for peptic ulcers. Patients with other causes of acute GI hemorrhage developed a recurrence of bleeding in 13%, complications in 26% and had a mortality rate of 19%. Bleeding varices as well as bleeding peptic ulcers and other causes of acute GI hemorrhage still have a high mortality and require intensive medical surveillance besides diagnostic and therapeutic endoscopy.

Acute Disease↗
PubMed1996

[Lymph node dissections in malignant melanoma].

Elective lymph node dissection and its potential as a staging procedure, the prognosis of established lymph node metastases and the sentinel lymph node identification procedure are the most important aspects of lymph node dissection in malignant melanoma. It is widely accepted that subgroups of patients benefit from elective lymph node dissection. The question of which parameters identify the relevant patients properly is still under discussion. pT-categories are the most important prognostic factor; however, localisation and type of tumour and the sex of the patients are additional parameters influencing patient selection. Recently, the first studies have identified subgroups of nodal positive patients who would profit from adjuvant chemo-/immunotherapy. Therefore, lymph node dissection as a staging procedure has to be discussed in the future. Identification of the sentinel lymph node is receiving increasing attention because of its potential influence on the reassessment of elective lymph node dissection. However, this method needs further evaluation. If lymph node metastases have occurred, the prognosis of malignant melanoma decreases by 20%-50%, depending on the extent of metastasis in the individual case. The relevant topics and results are discussed on the basis of data of the Surgical Department of the University Hospital of Erlangen-Nuremberg.

Female↗
PubMed1996

Correlation of polypoid lesions in the distal colorectum and proximal colon in asymptomatic screening subjects.

OBJECTIVE: Knowledge of a possible correlation between distal polyps found at screening sigmoidoscopy and proximal colonic lesions is important for deciding whether to perform total colonoscopy or not. PATIENTS: A prospective analysis of 2439 consecutive patients with colorectal polyps. Of these, 304 were asymptomatic subjects who underwent complete colonoscopy for screening and were found to have adenomatous or hyperplastic polyps in the distal colorectum. RESULTS: Ten (15%) out of 65 patients with distal hyperplastic polyps only and 86 (36%) out of 239 with distal adenomatous polyps were found to have adenomatous polyps in the proximal colon as well (P < 0.001). The frequency of synchronous proximal adenomas in patients with small (< or = 5 mm) or large distal adenomas (> 5 mm) was comparable (37% and 35%, respectively). However, patients with small distal adenomas had significantly smaller proximal adenomas (P = 0.004) containing less villous component (P = 0.017) than those with large distal adenomas. Neither the patient's age nor the presence of multiple distal adenomas increased the prevalence of proximal adenomas. CONCLUSION: Hyperplastic polyps found on rectosigmoidoscopy do not indicate a need for a complete colorectal examination, as 15% of patients with distal hyperplastic polyps will have proximal adenomatous polyps, a figure that is comparable with that of asymptomatic patients having no distal polyps, either hyperplastic or adenomatous. When only small distal adenomas are found at screening sigmoidoscopy in asymptomatic persons the decision to do a total colonoscopy should be based on individual considerations, as in such cases only small polyps are to be expected in the proximal colon.

Adenomatous Polyps↗
PubMed1996

[Surgical resection of colorectal liver metastases: Gold standard for solitary and radically resectable lesions].

From 1960 to 1993, a total of 1.766 patients with liver metastases from colorectal carcinoma was recorded. Five-hundred-and-eight patients (28.8%) underwent hepatic resection which was performed with curative intent in 473 patients (26.8%). 30-day mortality in this group was 4.5%, being 2.6% (4 out of 155) since 1990. Significant morbidity was observed in 16% of patients with a decrease to 7% for the last 4 years. A 99.5 percent follow-up until January 1, 1996, was achieved. Excluding operative mortality there are 376 patients with "potentially curative" initial liver resection, and 65 corresponding patients with minimal macroscopic (n = 19) or microscopic (n = 46) residual disease. The latter group demonstrated a poor prognosis with median and maximum survival times of 14.8 and 56 months, respectively. Among the 376 patients having potentially curative resection the actuarial five, ten, and twenty year survival was 39 +/- 3, 26 +/- 5 and 21 +/- 13 percent, respectively. Tumor-free survival was 34 +/- 3 percent at 5 years. In the univariate analysis, the following factors were associated with decreased crude survival: Presence and extent of mesenteric lymph node involvement (p = 0.0001), poor grading of the primary tumor (p = 0.008), synchronous diagnosis of metastases (p = 0.004), satellite metastases (p < 0.0001), an increasing metastasis diameter (p < 0.0001), preoperative CEA elevation (p = 0.0002), a resection margin of less than 1 cm (p = 0.018), extrahepatic disease (p = 0.02), non-anatomical procedures (p = 0.008), and an operative blood loss exceeding 2.000 ml (p = 0.02). With respect to disease-free survival, extrahepatic disease (p = 0.09) failed to achieve statistical significance, while patients with colon cancer and with delayed resection of synchronous metastases did significantly better than those with rectal cancer (p = 0.02) and with a simultaneous procedure (p = 0.04), respectively. Multiplicity and bilobar involvement did not affect prognosis. Similarly, no significant predictive value of an increasing number of metastases (1-3 vs > or = 4) on either overall (p = 0.35) or disease free survival (p = 0.55) was found after a radical excision of all detectable disease. Using Cox's multivariate regression analysis, presence of satellite metastases, anatomical vs non-anatomical approach, primary tumor grade and diameter of the largest metastasis all independently affected both crude and tumor-free survival (p < 0.05). With respect to survival, this was complemented by the margin of clearance (0.05 < p < 0.1), while for disease-free survival primary tumor site and time of metastasis diagnosis had some additional influence. Twenty-six patients with R0-reresection of the liver, and 32 patients with radical excision of extrahepatic recurrent disease had a subsequent 5-year survival of 57 +/- 15 percent and 32 +/- 12 percent, respectively. This confirms the effectiveness of a close follow-up policy.

Adult↗
PubMed1996

[Carcinoid tumors of the stomach in atrophic autoimmune gastritis: classification, differential diagnosis and prognosis].

With the aim of evaluating the prognosis of neuroendocrine tumours of the stomach we studied 255 patients with these tumours to gain informations about the different biological behaviour of these tumours. We examined subtypes on the basis of the type of gastritis according to RINDI et al. 1993. A classification was made on the basis of tumour size, depth of invasion, angio invasion, functioning or non functioning, metastatic or non metastatic according to CAPELLA et al. 1994 to estimate benign and low or high grade malignant behaviour. 191 carcinoid tumours in autoimmune gastritis were in 86.4% classified as benign tumours (88% not more than 1 cm in diameter, 1 case with lymph node metastasis, no carcinoid tumour related death). 12 carcinoids associated with ZES-MEN I showed a benign or low grade malignant behaviour (60% more than 1 cm in diameter, 2 cases with lymph node metastasis, 1 with distant metastasis, 1 carcinoid related death). 36 sporadic carcinoid tumours were in 42% low grade malignant (36% 1-2 cm size, 25% more than 2 cm in diameter, 3 cases with lymph node metastasis, 2 with distant, 6 with lymph node and distant, 7 carcinoid related death). 13 neuroendocrine carcinoma were high grade malignant (1.5-7 cm size, 6 cases with lymph node metastasis, 2 with distant, 4 with lymph node and distant, 8 carcinoma related death). Therefore we conclude that in the classifications compared carcinoid tumours in A-gastritis are-in contrast to the other types of neuroendocrine tumours of the stomach-benign tumours with a good prognosis. The type of gastritis is for the prognosis of gastric neuroendocrine tumours besides tumour size and metastasis the most important parameter.

Adolescent↗
PubMed1996

[Is surgical therapy of distant metastases of malignant melanoma worthwhile?].

Distant metastases of malignant melanoma are generally considered as incurable related with an unfavourable prognosis. On the basis of our retrospective analysis of surgical treatment, subgroups of patients could be identified showing a significant improvement in survival after complete surgical removal of metastases. In single cases, survival longer than 10 years was observed. The surgical therapy of distant metastases of malignant melanoma is based on a strict patient selection and is only advantageous to those patients whose tumor tissue can be removed completely.

Female↗
PubMed1996

[Contribution of the clinical cancer register to internal quality assurance in surgical oncology].

Statistically based, continuous quality improvement techniques have been advocated for use in medical settings. Annual reports from the cancer registry database provide most of the information needed to advance improvement or retrogression in the care of cancer patients. The analysis of the frequency of resection, complication rate, mortality rates, and survival rates provides a quality measure for the surgical treatment of cancer.

Databases, Factual↗
PubMed1996

[Curative interventions for recurrence of gastrointestinal carcinomas--incidence and prognosis].

Locoregional relapse following curative resection (= R0) of gastrointestinal cancer occurs in 30% (colorectal carcinoma) and up to 70% (ductal pancreatic cancer) of patients. A potential, complete removal of a tumor recurrence can be achieved, in particular, in the case of colorectal carcinoma. For these tumors and all their locations (loco-regional, metachronic liver and lung metastasis), 5-year survival rates can amount up to 40%. The survival rates of our own patients are presented.

Follow-Up Studies↗
PubMed1995

Prognosis of gastric carcinoid tumours.

With the aim of evaluating the prognosis of carcinoid tumours of the stomach, the tumours were classified into subtypes on the basis of the type of gastritis, and a comparison made of the type of treatment, metastasizing rate, and the survival rates of the various groups of patients involved. Of the patients with atrophic autoimmune gastritis (type A gastritis) (n = 88) who had multiple carcinoid tumours in the corpus or fundus, usually not more than 1 cm in diameter, 98% were followed up clinically or by endoscopy and biopsy. In these patients, the metastasizing rate was 0%, and the age-corrected Kaplan-Meier survival rate revealed normal life expectancy. 25% of the patients with sporadic carcinoid tumours (n = 12)--most of whom had a Helicobacter pylori-related gastritis and usually solitary tumours located within the corpus of fundus, 25% of which exceeding 1 cm in diameter--underwent surgical treatment. In these patients the metastasizing rate was 16.7% and the age-corrected survival rate 79%. On the basis of our results, we conclude that, depending upon the subtype involved, the prognosis of gastric carcinoid tumours varies, such that regular endoscopy/biopsy follow-up suffices for patients with type A gastritis, while for patients with sporadic carcinoid tumours, surgical treatment is indicated.

Adult↗
PubMed1995

[Recurrent tumor after R0 resection of colorectal liver metastases. Incidence, resectability and prognosis].

In the period 1960 to 1992 a total of 366 patients underwent macroscopic and histologic complete resection (R0) of colorectal liver metastases. Excluding 16 operative deaths and 4 patients with incomplete follow-up information, 346 patients form the basis for this report. Of them, 240 (69.4%) developed recurrent disease involving the liver in 136 (39.3%) instances. 71 patients underwent a tumor related reoperation with a re-resection performed in 60 cases. This involved the liver in 22 patients. 47 of these procedures (19.6% of all recurrences), and 16 re-resections of the liver (11.8% of hepatic recurrences) were ultimately classified R0. Additional 9 patients who had the initial liver resection performed in other hospitals underwent hepatic re-resection which was classified R0 in 8. Out of 8 subsequent reoperations, 3 addressed the liver. Operative mortality in the 34 re-resections at the liver was 2.9% while nonlethal morbidity was 17.7%. After a minimum and median follow-up time of 18 and 49 months, resp., 27 patients are alive without recurrent disease, including 11 patients with hepatic re-resection. Another 4 patients are alive with disease, one of them after repeat liver resection. 5-year survival from re-resection is 39.0% for the entire group of 55 R0-patients, and 45.6% for the 24 who underwent hepatic R0-re-resection.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1994

Organ-sparing treatment of advanced bladder cancer: a 10-year experience.

PURPOSE: Radical cystectomy is considered as standard therapy for muscle-invasive bladder cancer. We present 10-year results of bladder-sparing treatment by conservative surgery and radiotherapy +/- chemotherapy. METHODS AND MATERIALS: From 1982 through 1991, 245 consecutive patients, mean age 66 years, with invasive bladder cancer (T2-3 or poor prognostic T1, no distant metastases) entered a prospective protocol with the objective of bladder preservation. Treatment consisted of transurethral resection (complete, if possible) and definitive radiotherapy with 56 Gy maximum dose (50.4 Gy minimum target dose) in 28 fractions. Since 1985, 139 patients received a simultaneous chemotherapy on 5 days in the first and fifth treatment week with either 25 mg/m2 cisplatin daily (79 patients) or 65 mg/m2 carboplatin (60 patients). Cystectomy was performed as salvage treatment for residual or recurrent invasive disease. The median follow-up at the date of analysis (12-31-92) was 5.9 years. RESULTS: The overall survival was 47% after 5 years and 26% after 10 years. The 5-year survival according to the initial T-category was 60% for T1 (44 patients), 64% for T2 (47 patients), 43% for T3 (127 patients), and 16% for T4 (23 patients). The most important single prognostic factor was the amount of residual tumor after TUR (5-year survival 80% after R0, 53% after R1, and 31% after R2 resection, p < 0.01). Chemotherapy increased the rate of complete remission, but had no impact on 5-year survival (52% vs. 50%). Fifty-three salvage cystectomies were performed, all without severe complications, and 192 patients (79%) maintained a normal functioning bladder. The bladder preservation rate in 5-year survivors was 83%. CONCLUSIONS: Organ-sparing treatment of advanced bladder cancer by transurethral surgery and definitive radiotherapy or radiochemotherapy is feasible and effective. The survival in this series is as good as in any comparable cystectomy series. Eighty-three percent of long-term survivors maintained their functioning bladders.

Aged↗
PubMed1994

Factors influencing the natural history of colorectal liver metastases.

Palliative treatment of unresectable colorectal liver metastases is common and often justified with reference to historical data on the natural history of the disease. However, in view of the improved diagnostic accuracy of modern imaging techniques, these previously published series do not provide sufficient guidance to judge the prognostic efficacy of palliative treatment. In the late 1970s we started prospectively to collect data on consecutive patients with colorectal liver metastases according to a standard protocol. We now present data derived from this series on factors that may affect outcome in untreated patients. Between January, 1980, and December, 1990, 1099 consecutive patients were recorded, of whom 566 (51.5%) received no treatment for their hepatic tumour. Excluding 34 early deaths and 48 patients with a second malignant tumour, 484 patients provided the basis for analysis. All patients were followed up to July 1, 1993, or death. At the closing date of the study only 1 untreated patient was still alive. The impact of various factors on survival was analysed by univariate and multivariate analyses. Six independent determinants of survival were identified in the following order: percentage liver volume replaced by tumour (LVRT), grade of malignancy of the primary tumour, presence of extrahepatic disease, mesenteric lymph-node involvement, serum carcino-embryonic antigen, and age. The subsequent combination of the independently significant factors, separately for patients with up to or more than 25% LVRT, yielded a prognostic tree that displayed median survival times of various subgroups of 3.8 to 21.3 months. These findings provide a framework to estimate the survival expectancy of untreated patients, thereby allowing improved assessment of the prognostic significance of palliative therapeutic approaches.

Colorectal Neoplasms↗
PubMed1994

[Classification and prognosis of supravesical urothelioma with the new TNM classification].

We report on 149 patients with supravesical urothelioma (transitional cell carcinoma of the upper urinary tract) treated in our hospital during the years 1967-1991. The introduction shows the distribution of sex and age as well as the localization of the tumor. Main topic of this paper is a new definition of the clinical pathology of supravesical urothelioma by means of the TNM classification published 1987. Based on the pathological pioneer work of P. Hermanek our results are as follows: during the first diagnosis pT3 predominates with 30.2%, followed by pT1 with 25.5% and pTa, pT1 and pT4 with a relatively low incidence. G2 predominates with 47.7%; G1 and G3 have almost the same frequency. The G/pT ratio shows a decreasing linearity for G1 from pTa to pT4; for G2 there is equivalence of pT1-pT3; and pTa and pT4 are relatively rare. With respect to G3, pT3 predominates with 51%, followed by pT4, pT1 and finally pTa with zero frequency. The G/M ratio shows M0 only for G1, 10% M positive for G2 and 15% M positive for G3. The 10-year survival rate for patients with R0 resection and stage pTa is 64% and for pT1-pT4, 33-36%. The 10-year survival rate for patients with G1 tumor is 51%, and that for G3 tumors 30%. Multicentric occurrence and carcinoma in situ have no prognostic significance in our sample. As is well known, papillary growth has a better prognosis than solid infiltration.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1994

Prognostic value of S-phase fraction in head and neck squamous cell carcinomas and nodal negative breast carcinomas.

PURPOSE: The prognostic value of proliferative activity (percentage of S-phase cells = SPF) was determined in head and neck and nodal negative breast carcinomas and correlated with treatment outcome and analysis of recurrence. METHODS AND MATERIAL: SPF of 171 primary squamous cell carcinomas of the head and neck and 183 nodal negative breast carcinomas was determined by one-dimensional flow cytometry. RESULTS: For the whole population of head and neck carcinomas slowly proliferating tumors (SPF < median) had a better five-year survival rate (28%) than fast proliferating tumors (S-phase > median; 20% p < 0.05). Failure analysis revealed that the better survival of slowly proliferating tumors was due to the higher loco-regional control rate (62%) compared to fast proliferating tumors (43%; p < 0.05). Stepwise multivariate analysis revealed treatment modality (p = 0.107), SPF (p = 0.026) and UICC stage (p = 0.044) as independent prognostic factors for loco-regional recurrences and SPF (p = 0.0143) for three-year overall survival. In nodal negative breast cancer slowly proliferating tumors (SPF < median) had a better NED survival (92%) compared to fast proliferating tumors (SPF > median; NED survival 63%). The analysis of recurrence revealed a higher rate of distant metastases (15.7%) and of loco-regional recurrences (21%) for fast proliferating tumors as compared to slowly proliferating tumors (distant metastases: 1.1%; loco-regional recurrences 4.5%). Stepwise multivariate analysis showed that SPF (p = 0.001) was the only independent prognostic factor for NED survival; grading (p = 0.022), age (p = 0.003) and SPF (p = 0.007) for freedom from distant metastases; SPF (p = 0.0039), grading (p = 0.0956) and method of surgical treatment (p = 0.0715) for loco-regional recurrences. CONCLUSIONS: SPF has a relevant prognostic power for squamous cell head and neck cancer and nodal negative breast cancer.

Adult↗