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Dive into the research topics where Sascha Macherey is active.

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Featured researches published by Sascha Macherey.


Interactive Cardiovascular and Thoracic Surgery | 2016

Is manual palpation of the lung necessary in patients undergoing pulmonary metastasectomy

Sascha Macherey; Fabian Doerr; Matthias Heldwein; Khosro Hekmat

A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was whether manual palpation of the lung is necessary in patients undergoing pulmonary metastasectomy. In total, 56 articles were found using the described search strategy. After screening these articles and their references, 18 publications represented the best evidence to answer the clinical question. No randomized controlled trial addressing the three-part question was available. The authors, journal, date and country of publication, patient group, study type, relevant outcomes and results of these papers were tabulated. The studies reported on 1472 patients with different primary cancers. The patients underwent more than 1630 pulmonary metastasectomies between 1990 and 2014 after the treatment of primary cancer. Almost three quarters of patients underwent open procedures like thoracotomy or sternotomy. Most frequently, helical CT with a slice thickness ranging between 1 and 10 mm was used for preoperative imaging. The sensitivity in detecting pulmonary nodules ranged from 34 to 97%. The corresponding sensitivity rates for PET-CT were 66-67.5 and 75% for high-resolution CT. The positive predictive value for lesions detected by helical CT varied from 47 to 96%. Helical CT reached a specificity between 54 and 93% in detecting pulmonary nodules. The surgeons identified more nodules by meticulous palpation than helical CT. It is noteworthy that up to 48.5% of these palpated nodules were benign lesions (false-positive). Patients with smaller imaged nodules, multiple imaged nodules or primary mesenchymal tumour are more likely to have occult pulmonary nodules. We conclude that not all palpable pulmonary nodules can be imaged preoperatively. Thoracotomy allows the manual palpation of the ipsilateral hemithorax and might be superior to video-assisted thoracic surgery regarding radical resection. However, not all palpable nodules are malignant, and the impact of non-resected pulmonary metastases on patient survival is not clearly evaluated.


Hautarzt | 2015

Chirurgische Therapie pulmonaler Metastasen des malignen Melanoms

Sascha Macherey; Max Schlaak; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Results of previous studies question the benefits of pulmonary surgery in patients with pulmonary metastases from malignant melanoma. A systematic literature search and analysis of articles published since 1 January 2000 was carried out to investigate the advantages of metastasectomy and alternative forms of therapy. Patients reached a median survival time of 17-40 months and 5-year survival rates between 18% and 39.4% after metastasectomy. Intrathoracic recurrence occurred in 30 % of patients but could be successfully treated with re-operations in some cases. Various monoclonal antibodies are currently available and achieve a median survival time of up to 17 months. Pulmonary metastasectomy is the treatment of choice in selected patients; however, in the future the benefits should be revalidated in comparison with pharmaceuticals of the current generation.


Hautarzt | 2015

Surgical therapy for pulmonary metastases from malignant melanoma

Sascha Macherey; Max Schlaak; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Results of previous studies question the benefits of pulmonary surgery in patients with pulmonary metastases from malignant melanoma. A systematic literature search and analysis of articles published since 1 January 2000 was carried out to investigate the advantages of metastasectomy and alternative forms of therapy. Patients reached a median survival time of 17-40 months and 5-year survival rates between 18% and 39.4% after metastasectomy. Intrathoracic recurrence occurred in 30 % of patients but could be successfully treated with re-operations in some cases. Various monoclonal antibodies are currently available and achieve a median survival time of up to 17 months. Pulmonary metastasectomy is the treatment of choice in selected patients; however, in the future the benefits should be revalidated in comparison with pharmaceuticals of the current generation.


Hno | 2014

Chirurgische Therapie pulmonaler Metastasen von Kopf-Hals-Tumoren

Sascha Macherey; Simon F. Preuss; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Pulmonary metastasectomy is an established procedure in oncological therapeutic concepts. A systematic literature search and an analysis of all studies published since 01.01.2000 should evaluate the advantage of pulmonary metastasectomy for patients with primary head and neck cancer. Lung metastases develop in 1.9-13% of head and neck cancer patients. Following metastasectomy, patients reach a median survival of 9.5-78 months and 5-year survival rates of up to 58% are achieved. Intrathoracic recurrence occurs in 18.4-81.8% of patients, selected instances of which can be successfully treated by remetastasectomy. Patients with squamous cell carcinoma have the worst prognosis, but could also become long-term survivors (≥ 60 months). Pulmonary metastasectomy is frequently the only potentially curative therapeutic approach and offers a better long-term survival than nonsurgical therapies. Lung metastasectomy is thus the treatment of choice in selected patients with pulmonary metastases from primary head and neck cancer.


Hno | 2014

Surgical therapy of lung metastases from head and neck cancer

Sascha Macherey; Simon F. Preuss; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Pulmonary metastasectomy is an established procedure in oncological therapeutic concepts. A systematic literature search and an analysis of all studies published since 01.01.2000 should evaluate the advantage of pulmonary metastasectomy for patients with primary head and neck cancer. Lung metastases develop in 1.9-13% of head and neck cancer patients. Following metastasectomy, patients reach a median survival of 9.5-78 months and 5-year survival rates of up to 58% are achieved. Intrathoracic recurrence occurs in 18.4-81.8% of patients, selected instances of which can be successfully treated by remetastasectomy. Patients with squamous cell carcinoma have the worst prognosis, but could also become long-term survivors (≥ 60 months). Pulmonary metastasectomy is frequently the only potentially curative therapeutic approach and offers a better long-term survival than nonsurgical therapies. Lung metastasectomy is thus the treatment of choice in selected patients with pulmonary metastases from primary head and neck cancer.


Pneumologie | 2017

Die Rolle der Laserresektion in der Lungenmetastasenchirurgie

Sascha Macherey; Fabian Doerr; Thorsten Wahlers; Khosro Hekmat

Objectives This review presents laser resection as treatment option in pulmonary metastasectomy and summarizes the current evidence. Moreover, it includes the comparison of laser resection and common techniques used in lung metastasectomy. Methods We performed a systematic literature research in Medline and the Cochrane library to detect case series and even randomized trials. All included studies underwent qualitative analysis. Results Laser metastasectomy is a safe procedure. Data regarding relevant clinical end points as hospitalization, duration of chest tube drainage and long-term survival are heterogeneous and still controversial. Laser enucleation decreases the resection volume. Therefore, it leads to a significant reduction of parenchymal loss. Survival rates after laser metastasectomy are equal to the outcome after resection using other techniques. Conclusions Laser resection is a parenchyma-sparing method. Hence, it offers radical metastasectomy even in case of multiple pulmonary lesions or impaired lung capacity.


Geburtshilfe Und Frauenheilkunde | 2017

Lung Metastasectomy for Pulmonary Metastatic Breast Carcinoma

Sascha Macherey; Peter Mallmann; Wolfram Malter; Fabian Doerr; Matthias Heldwein; Thorsten Wahlers; Khosro Hekmat

Breast carcinoma with pulmonary metastasis can be treated locally or systemically. Following primary tumour resection patients with isolated, completely resectable pulmonary nodules and definite functional operability can be offered lung metastasis resection. Following metastasectomy a median survival of 32 to 96.6 months can be achieved with corresponding five-year survival rates between 30.8 and 54.4%. The procedure is associated with a mortality rate of 0 to 3%. The most important independent prognostic factor for long-term survival is complete resection of all lung lesions. The configuration and pattern of metastasis as well as disease-free interval, hormone and HER2/neu receptor status also appear to influence prognosis, but are of lesser importance. Intrapulmonary recurrence of metastases may, after careful selection on a case-by-case basis, also be treated operatively. In some cases this is associated with a favourable long-term prognosis. Pulmonary metastasectomy should be the treatment of choice for selected patients with metastatic breast carcinoma.


Hautarzt | 2015

Chirurgische Therapie pulmonaler Metastasen des malignen Melanoms@@@Surgical therapy for pulmonary metastases from malignant melanoma

Sascha Macherey; Max Schlaak; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Results of previous studies question the benefits of pulmonary surgery in patients with pulmonary metastases from malignant melanoma. A systematic literature search and analysis of articles published since 1 January 2000 was carried out to investigate the advantages of metastasectomy and alternative forms of therapy. Patients reached a median survival time of 17-40 months and 5-year survival rates between 18% and 39.4% after metastasectomy. Intrathoracic recurrence occurred in 30 % of patients but could be successfully treated with re-operations in some cases. Various monoclonal antibodies are currently available and achieve a median survival time of up to 17 months. Pulmonary metastasectomy is the treatment of choice in selected patients; however, in the future the benefits should be revalidated in comparison with pharmaceuticals of the current generation.


Hno | 2014

Chirurgische Therapie pulmonaler Metastasen von Kopf-Hals-Tumoren@@@Surgical therapy of lung metastases from head and neck cancer

Sascha Macherey; Simon F. Preuss; Fabian Doerr; Sabine Grönke; Matthias Heldwein; Alexander Quaas; Thomas Zander; Khosro Hekmat

Pulmonary metastasectomy is an established procedure in oncological therapeutic concepts. A systematic literature search and an analysis of all studies published since 01.01.2000 should evaluate the advantage of pulmonary metastasectomy for patients with primary head and neck cancer. Lung metastases develop in 1.9-13% of head and neck cancer patients. Following metastasectomy, patients reach a median survival of 9.5-78 months and 5-year survival rates of up to 58% are achieved. Intrathoracic recurrence occurs in 18.4-81.8% of patients, selected instances of which can be successfully treated by remetastasectomy. Patients with squamous cell carcinoma have the worst prognosis, but could also become long-term survivors (≥ 60 months). Pulmonary metastasectomy is frequently the only potentially curative therapeutic approach and offers a better long-term survival than nonsurgical therapies. Lung metastasectomy is thus the treatment of choice in selected patients with pulmonary metastases from primary head and neck cancer.


Zentralblatt Fur Chirurgie | 2017

Lungenmetastasenchirurgie beim pulmonal metastasierten kolorektalen Karzinom

Sascha Macherey; Christiane J. Bruns; Hakan Alakus; Fabian Doerr; Matthias Heldwein; Alexander Quaas; Thorsten Wahlers; Khosro Hekmat

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