Suction Drain in Axillary Lymph Node Dissection for Malignant Melanoma

Study Overview
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Brief Summary
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Postoperative complications like seroma formation and wound site infection readily occur following completion axillary lymph node dissection (ALND) for malignant melanoma. We analyzed the impact of time-to-drain removal and drainage volume on seroma formation after ALND.

Official Title
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Suction Drain Volume Following Axillary Lymph Node Dissection for Malignant Melanoma - When to Remove Drains? A Retrospective Cohort Study.

Conditions
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Malignant Melanoma

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: histologically confirmed malignant melanoma underwent axillary lymph node dissection (level I-III) daily drainage volume records over a two-week period available Exclusion Criteria: daily drainage volume records over a two-week period not available
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| daily drainage volume during hospitalization | The daily drainage amount durin hospital stay | through study completion, an average of 1 year | 
| total drainage volume during hospitalization | The total drainage amount during hospital stay | through study completion, an average of 1 year | 
| time-to-drain removal | The timepoint when the drain was removed | through study completion, an average of 1 year | 
| evacuation of seroma after drain removal | If evacuation of seroma after drain removal was needed | through study completion, an average of 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| demographic data - age | age | through study completion, an average of 1 year | 
| demographic data - sex | sex | through study completion, an average of 1 year | 
| demographic data - BMI | body mass index (BMI) | through study completion, an average of 1 year | 
| demographic data - smoking | smoking | through study completion, an average of 1 year | 
| demographic data - Diabetes mellitus | diabetes mellitus | through study completion, an average of 1 year | 
| demographic data - allergies | allergies | through study completion, an average of 1 year | 
| intraoperative parameters | surgical procedure time | through study completion, an average of 1 year | 
| intraoperative parameters - site | site | through study completion, an average of 1 year | 
| Amount of histologically analyzed lymph nodes | The amount lymph nodes found at histological analysis | through study completion, an average of 1 year | 
| Surgical complications | graded by the Clavien-Dindo-classification ( 1:normal postoperative cause without need of pharmacological treatment ; 2: pharmacological treatment ; 3: surgical, endoscooic or radiological treatment; 4: live-threating complications; 5: Death | through study completion, an average of 1 year |