Metastasectomy in Leiomyosarcoma: A Systematic Review and Pooled Survival Analysis
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Search Strategy
2.2. Selection Process
2.3. Data Collection
2.4. Data Synthesis and Analysis
2.5. Risk of Bias Assessment and Certainty of Evidence
3. Results
3.1. Study Characteristics
3.2. Sociodemographic and Clinical Characteristics of Patients Undergoing Metastasectomy for LMS
3.3. Management of Patients Undergoing Metastasectomy for LMS
3.4. Post-Metastasectomy Outcomes
3.5. Prognostic Factors Associated with Post-Metastasectomy Outcomes
3.5.1. Lung
3.5.2. Liver
3.5.3. Spine
3.6. Recurrence Post-Metastasectomy
3.7. Risk of Bias and Certainty of Evidence
4. Discussion
Limitations
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
ASPS | Alveolar soft part sarcoma |
CI | Confidence interval |
CSS | Cancer specific survival |
DFI | Disease free interval |
ECOG | Eastern Cooperative Oncology Group |
GI | Gastrointestinal |
GIST | Gastrointestinal stromal tumor |
GTR | Gross total removal |
GU | Genitourinary |
IQR | Interquartile range |
JBI | Joanna Briggs Institute |
LMS | Leiomyosarcoma |
LPS | Liposarcoma |
MFH | Malignant fibrous histiocytoma |
MPNST | Malignant peripheral nerve sheath tumor |
NOS | Newcastle-Ottawa Quality Assessment Scale |
NR | Not reported |
OS | Overall survival |
RMS | Rhabdomyosarcoma |
SD | Standard deviation |
SFT | Solitary fibrous tumor |
SS | Synovial sarcoma |
STR | Subtotal removal |
STS | Soft tissue sarcoma |
UPS | Undifferentiated pleomorphic sarcoma |
WBRT | Whole brain radiation therapy |
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Study | Country | Center(s)/Registry | Inclusion Dates | Study Design | Inclusion Criteria |
---|---|---|---|---|---|
Anraku, 2004 | Japan | Metastatic lung tumor study group of Japan | 1984–2002 | Case series | Pulmonary metastasectomy for uterine malignancies |
Blackmon, 2009 | USA | University of Texas M. D. Anderson Cancer Center | 1998–2006 | Case series | Pulmonary metastasectomy for STS and bone sarcoma |
Burt, 2011 | USA | The Brigham and Women’s Hospital | 1989–2004 | Case series | Pulmonary metastasectomy for STS and bone sarcoma |
Chen, 1998 | USA | The Johns Hopkins Hospital | 1984–1995 | Case series | Hepatic metastasectomy for LMS |
Chudgar, 2017 | USA | Memorial Sloan Kettering Cancer Center | 1991–2014 | Case series | Pulmonary metastasectomy for STS |
Deguchi, 2020 | Japan | Six institutes in Japan | 2002–2018 | Case series | Brain metastasectomy for STS and bone sarcoma |
Ercolani, 2005 | Italy | University of Bologna | 1990–2003 | Case series | Hepatic metastasectomy for noncolorectal nonneuroendocrine tumors |
Faraj, 2015 | Lebanon | American University of Beirut Medical Center | 1998–2009 | Case series | Hepatic metastasectomy for colorectal LMS |
Farid, 2013 | Singapore | National University of Singapore | 2002–2010 | Cohort study | All LMS |
Goumard, 2018 | USA | University of Texas M. D. Anderson Cancer Center | 1998–2015 | Case series | Hepatic metastasectomy for non-GIST sarcoma |
Kato, 2020 | Japan | Kanazawa University | 2005–2016 | Case series | Spine metastasectomy for LMS |
Kim, 2017 | Korea | Asian Medical Center | 2003–2015 | Case series | Hepatic metastasectomy for intra-abdominal LMS |
Lang, 2000 | Germany | Hanover Medical School | 1982–1996 | Case series | Hepatic metastasectomy for LMS |
Liebl, 2007 | Germany | University Medical Centre | 1990–2005 | Case series | Pulmonary metastasectomy for STS |
Lin, 2015 | USA | University of California Los Angeles Medical Center | 1990–2010 | Case series | Pulmonary metastasectomy for STS and bone sarcoma |
Marudanayagam, 2010 | UK | Queen Elizabeth University Hospital | 1997–2009 | Case series | Hepatic metastasectomy for STS |
Paramanathan, 2013 | Australia | Peter MacCallum Cancer Center and St. Vincent’s Health | 2001–2011 | Case Series | Pulmonary metastasectomy for sarcoma of gynecologic origin and STS |
Rao, 2008 | USA | University of Texas M. D. Anderson Cancer Center | 1993–2005 | Case series | Spine resection for primary or metastatic STS or bone sarcoma |
Smith, 2009 | USA | Roswell Park Cancer Institute | 1976–2000 | Case series | Pulmonary metastasectomy for STS surviving longer than five years |
Van Cann, 2018 | Belgium | University Hospitals Leuven | 2000–2014 | Cohort study | Metastatic LMS |
Zacherl, 2011 | Austria | Medical University of Vienna and Medical University of Graz | 1987–2006 | Case series | Hepatic metastasectomy for STS |
Zhang, 2015 | China | Central Hospital of PLA | 2000–2009 | Case series | Hepatic metastasectomy for extremity STS surviving longer than five years |
Ziewacz, 2012 | USA | University of Michigan | 2005–2011 | Case series | Spine metastasectomy for LMS |
| |||||||||
Study | Total # Undergoing Metastasectomy for LMS | Median Age Years (Range) | Male # | Primary Site Location # | Synchronous #/Metachronous # | DFI (Months) from Primary Tumor to Metastases | Site of Metastases #,a | ||
Burt, 2011 | 31 | Mean 52 (SD ± 9.3) | 7 | Uterus 13; extremity 10; retroperitoneum 4; trunk 2; other 2 | NR | Mean 48 (SD ± 61) | Lung 31 | ||
Chen, 1998 | 11 | 57 (30–69) | 2 | Retroperitoneum 5; gastric 3; small intestine 2; uterine/adnexal 1 | NR | Mean 16 (SD ± 4, range 0–40 months) | Liver 11 | ||
Faraj, 2015 | 5 | 47 (24–69) | 2 | Colon 4; rectum 1 | 3/2 | NR | Liver 5; adrenal 1 | ||
Kato, 2020 | 10 | Mean 53 (24–69) | 5 | Retroperitoneum 3; uterus 2; stomach 2; extremity 2; maxillary sinus 1 | 1/9 | Mean 50 (range 10–204) | Spine 10; liver 1; lymph nodes 1 peritoneum 3; lung 3 | ||
Kim, 2017 | 10 | 48 (38–69) | 3 | Retroperitoneum 5; pancreas 1; small bowel 2; colon 1; stomach 1 | 2/8 | Median 15 (range 5–38) | Liver 10 | ||
Lang, 2000 b | 26 | Mean 54 (23–67) | 18 | Stomach 8; small bowel 4; vena cava 1; kidney 1; colon 1; upper abdomen/stomach 5; retroperitoneum 5; not specified 1 | 8/15 c | Median 33 (range 0–164) | Liver 23; peritoneum 4; bone 1; lymph nodes 4 | ||
Paramanathan, 2013 d | 12 | 58 (44–76) | 0 | Uterus 12; broad ligament/adnexal 1 | 0/13 | Median 26 (range 7–156) | Lung 13 | ||
Ziewacz, 2012 | 8 | Mean 51 (25–66) | 3 | Uterus 4; chest wall 1; extremity 2; retroperitoneum 1 | NR | NR | Spine 8 | ||
| |||||||||
Study | Total # Included | Total # Undergoing Metastasectomy for LMS | Median Age Years (Range) | Male # | Histology # | Primary Site Location # | Synchronous #/Metachronous # | DFI (Months) from Primary Tumor to Metastases | Site of Metastases #,a |
Anraku, 2004 | 133 | 11 | Mean 56 (26–80) | 0 | Squamous cell carcinoma 58; adenocarcinoma 13; endometrial adenocarcinoma 23; choriocarcinoma 16; LMS 11; other 12 | Uterine 133 | 8/125 | Range 0–243 months (0 months 8; 1–11 months 23; 12–35 months 38; ≥36 months 60) | Lung 133; extra-pulmonary 8 |
Blackmon, 2009 | 234 | 41 | Mean 43 (8–83) | 123 | Osteosarcoma 46; MFH 33; SS 29; LMS 41; other 85 | Extremity 136; NR 98 | NR | NR | Lung only 147; lung + extra-pulmonary metastases 87 |
Chudgar, 2017 | 539 | 169 | 54 (15–90) | 227 | LMS 169; pleomorphic sarcoma/MFH 130; SS 81; other 81; fibrosarcoma 33; LPS 30; MPNST 15 | Extremity 249; trunk 65; retroperitoneum/abdomen/pelvis 65; Visceral/GU/gynecologic 136; head and neck 24 | 71/468 | Median 16 months (IQR 8–36) | Lung only 492; lung + extra-pulmonary metastases 47 |
Deguchi, 2020 | 22 | 5 | 45 (18–76) | 11 | ASPS 6; RMS 1; LMS 5, MPNST 1; osteosarcoma 1; epithelioid cell tumor 1; pleomorphic sarcoma 2 SS 2; undifferentiated sarcoma 1; UPS 2 | NR | 2/20 | Median 20 months (range 0–267) | Brain 22; lung 19 |
Ercolani, 2005 | 83 | 10 | Mean 55 (18–76) | 35 | NR | GI 18; breast 21; GU 15; soft tissue 10; other 19 | 11/72 | ≤1 year 34; >1 year 49 | Liver 83 |
Farid, 2013 f,g | 97 | 11 | 51 (28–87) | 23 | LMS 97 | Uterine 51; extremity 16; retroperitoneum 9; pelvis 8; GI 6; GU 5; other 2 | 27/NR | NR | Uterine LMS h: liver 12.5%; lungs 81.3%; brain 6.3%; bones 12.5%; peritoneal 15.6%; lymph nodes 15.6%; others 25% Extrauterine LMS h: liver 38.5%; lungs 50%; bones 11.5%; peritoneal 19.2%; lymph nodes 19.2%; others 26.9% |
Goumard, 2018 | 126 | 62 | 54 (4–79) | 56 | LMS 62; LPS 14; hemangiopericytoma/SFT 9; vascular 7 (hemangioendothelioma 4; angiosarcoma 3); osteosarcoma 2; RMS 1; unclassified 26; NR 4 | Abdominal 105; extra-abdominal 21 | 44/82 | Median 12 months (range 0–298); >24 months 45 | Liver 126; extra-hepatic metastases 26 |
Liebl, 2007 | 42 | 13 | Mean 50 (17–73) | 25 | Alveolar sarcoma 2; extraskeletal chondrosarcoma 4; fibrosarcoma 2; LMS 13; MPNST 3; MFH 7; SS 4; spindle cell sarcoma 2; other 5 | NR | 10/32 | Median 12 months; >18 months 16; ≤18 months 26 | Lung 42 |
Lin, 2015 | 155 | 26 | Mean 47 (11–92) | 87 | LMS 26; osteosarcoma 21; SS 19; chondrosarcoma 14; LPS 10; undifferentiated sarcoma/MFH 7; Ewing’s sarcoma 5; MPNST 5; alveolar soft part sarcoma 3; RMS 2; other 25; NR 18 | Extremity 87; non-extremity 52; Visceral-gynecologic 16 | 23/132 | Median 20 months (range 1–268) | Lung 155 |
Marudanayagam, 2010 | 36 | 20 | 58 (23–81) | 13 | Spindle cell sarcoma 1; angiosarcoma 1; osteosarcoma 1; carcinosarcoma 2; LPS 2; sarcomatoid renal cell tumor 4; GIST 5; LMS 20 | Lung 1; vena cava 2; retroperitoneum 2; leg 3; skin 1; breast 1; ovary 1; uterus 3; kidney 4; colon 1; small bowel 5; mesentery 6; stomach 6 | 13/23 | Median 17 months (range 0–322) | Liver 36; extra-hepatic metastases 11 |
Rao, 2008 | 80 | 21 | 53 (9–77) | NR | Chondrosarcoma 21; LMS 22; Osteosarcoma 10; LPS 9; RMS 1; SS 4; unclassified sarcoma 9; other 4 | NR 51 | NR/NR | Median 32 months (range 0–127) | Spine 51; active extraspinal disease 35 |
Smith, 2009 | 94 | 22 | 49 (9–75) | 47 | MFH 16; SS 18; LMS 22; LPS 12; other 26 | Extremity 47; retroperitoneum 6; uterus 12; other 29 | 18/76 | Median 15 months (range 0–176) | Lung 94; extra-pulmonary metastases 34 |
Van Cann, 2018 c | 122 | 28 | 60 (19–84) | 45 | LMS 122 | Extremity 43; uterine 24; abdominal 23; vascular 13; GI 12; thoracic 5; cutaneous 2 | 38/84 | Median 14 months (range 1–140) | Lung 78; liver 33; bone 9; lung only 47; liver only 10; bone only 3 |
Zacherl, 2011 | 15 | 9 | Mean 62 (SD ± 12) | 5 | Pleiomorphic sarcoma 1; LMS 9; chondrosarcoma 1; GIST 2; malignant schwannoma 1; malignant GI autonomic nerve tumor 1 | Small intestine 4; bone 3; pancreas 1; stomach 1; kidney 1; uterus 1; retroperitoneum 1; unknown primary 3 | 5/10 | Median 33 months (range 15–124) | Liver 15 |
Zhang, 2015 | 27 | 12 | 42 (16–64) | 15 | LMS 12; SS 4; LPS 5; MFH 3; spindle cell sarcoma 3 | Extremity 27 | 3/24 | Median 31 months (range 0–104) | Liver 27 |
| |||||||
Study | Site of Metastasectomy #,a | Number of Resected Metastases # | Size of Resected Metastases | Completeness of Metastasectomy # | Type of Resection # | Perioperative Systemic Therapy # | Perioperative Radiotherapy # |
Burt, 2011 | Lung 31 | Mean 1.9 +/− 1.5 (range 1–8) | 2.4 | R0 28; R1 3 | Wedge 22; segmentectomy 2; lobectomy 7 | Perioperative chemotherapy 20 | Perioperative 7 |
Chen, 1998 | Liver 11 | Mean 2.6 (range 1–6) | Size of largest lesion mean 3.8 cm (range 1.1–10) | R0 6; R1/2 5 | Segmentectomy 5; lobectomy 4; complex resection 2 | Preoperative chemotherapy 1; postoperative chemotherapy 3 | Preoperative 1 |
Faraj, 2015 | Liver 5; adrenal 1 | Multiple 5 | Sze of largest metastases median 12 cm (range 6–16) | R0 3; unknown 2 | Major hepatectomy 4; left adrenalectomy + right hepatectomy 1 | Postoperative chemotherapy 2 | NR |
Kato, 2020 | Spine 10 | Solitary 10 | NR | NR | Single vertebral resection 5; two or three consecutive vertebral resections 5 | Preoperative chemotherapy 2; postoperative chemotherapy 6 | Preoperative 2; postoperative 1 |
Kim, 2017 | Liver 10 | Solitary 6; multiple 4 | Maximum size of metastasis median 2.6 cm (range 0.9–3) | R0 9; R1 1 | Wedge 8; sectionectomy 1; right hepatectomy 1 | NR | NR |
Lang, 2000 b | Liver 23 | Solitary 10; two metastases 3; three metastases 4; >three metastases 6 | Largest tumor diameter median 8 cm (range 2–25 cm) | R0 15; R1 3; R2 5 | Segmentectomies 12, major hepatectomies 7, extracorporeal resections 4 | NR | NR |
Paramanathan, 2013 | Lung 13 | One metastasis 6; > one metastasis 7 | NR | R0 11; R1 1; unresectable at the time of surgery 1 | Wedge 7; segmentectomy 1; lobectomy 5; | Some patients had pre or postoperative chemotherapy c | NR |
Ziewacz, 2012 | Spine 8 | NR | NR | NR | Intralesional 8 | Perioperative chemotherapy 7 | Perioperative 6 |
| |||||||
Study | Site of Metastasectomy #,e | Number of Resected Metastases | Size of Resected Metastases | Completeness of Metastasectomy # | Type of Resection | Perioperative Systemic Therapy # | Perioperative Radiotherapy #,e |
Anraku, 2004 | Lung 133 | 4 metastases resected 23; NR 2 | 3 cm 52; NR 10 | NR | Pneumonectomy 3; bilobectomy 3; lobectomy 61 f; wedge or segmentectomy 84 f Lung resection combined with mediastinal or hilar lymphadenectomy 45 | NR | NR |
Blackmon, 2009 | Lung 234; abdomen 12; bone 16; brain 7; extra-pulmonary thoracic 3; pelvis 3; retroperitoneum 2; soft tissue/skin 7; scalp 5; spine 8 | Two 94; >2 132 | NR | R0 184; R1 21; R2 29 | For the first pulmonary resection only: Wedge 200; lobectomy, bilobectomy or sleeve 18; segmentectomy 15; pneumonectomy 1; Lung resection combined with lymph node dissection 7 | NR | NR |
Chudgar, 2017 | Lung 539 | 5 metastases 138 | NR | R0 490; R1 18; R2 31 | Wedge 422; lobectomy 107; pneumonectomy 10 | Preoperative chemotherapy 160; postoperative chemotherapy 53 | NR |
Deguchi, 2020 | Brain 22 | Single brain metastases 14; multiple brain metastases 8 | Maximum metastasis size median 39 mm (range 5–80) | GTR 21; STR 1 | NR | Postoperative chemotherapy 3; Postoperative tyrosine kinase inhibitor 3 | WBRT 10; Stereotactic 12 |
Ercolani, 2005 | Liver 83 | Single metastases 58; multiple metastases 25 | <5 cm 50; >5 cm 33 | NR | Wedge resection 11; major hepatectomy 72 | Postoperative chemotherapy 26 | NR |
Farid, 2013 | NR | NR | NR | NR | NR | NR | NR |
Goumard, 2018 | Liver 126; resection of all extra-hepatic metastases 17 | 2 51 | Maximum metastasis size 38 mm (range 3–330) | R0 107 | Major liver resection 68; associated RFA 17; associated abdominal extrahepatic resection 37; associated thoracic extrahepatic resection 9 | Preoperative chemotherapy 65; postoperative chemotherapy 33 | Postoperative radiation 2 |
Liebl, 2007 | Lung 42 | Solitary 16; multiple 26 | 2 cm 22; >2 cm 20 | NR | NR | Preoperative chemotherapy 12 | NR |
Lin, 2015 | Lung 155 | Average 4 +/− 4; range 1–29 | Diameter of largest metastasis mean 2.9 cm +/− 3.0 (range 0.3–16) | R0 105; R1 13; R2 12; NR 25 | Wedge 102; segmentectomy 20; lobectomy 27; pneumonectomy 6 | Preoperative therapy not otherwise specified 93 | |
Marudanayagam, 2010 | Liver 36; extra-hepatic metastases 11 | Median 1 (range 1–6) | Maximum diameter of metastasis 11 cm (range 1–26) | NR | Segmentectomy 6; wedge 8; hemihepatectomy 17; trisectionectomy 5 | NR | NR |
Rao, 2008 | Spine 51 | NR | NR | NR | En bloc resection 6; intralesional resection 45 | NR | NR |
Smith, 2009 | Lung 94; extra-pulmonary metastases 34 | One pulmonary metastasis 34; >1 pulmonary metastasis 60 | NR | R0 74; R1/2 20 | Wedge resection 74; lobectomy 17; pneumonectomy 3 | Postoperative chemotherapy 53 | Perioperative radiation 7; intraoperative radiation 7 |
Van Cann, 2017 | Lung 28 | NR | NR | NR | NR | Perioperative systemic therapy 7 | Postoperative radiotherapy 1 |
Zacherl, 2011 | Liver 15 | Solitary 5; multiple 10 | Median tumor diameter 60 mm (range 20–200) | R0 10; R1 3; R2 2 | Hemihepatectomy 9; Segmentectomy 4; wedge 3 | Postoperative chemotherapy 4 | NR |
Zhang, 2015 | Liver 27 | 2 metastases 11 Median 3 (range 1–13) | NR | R0 21; R1 6 | Wedge 17; segmentectomy 8; Hemihepatectomy 2 | Postoperative chemotherapy 22 | NR |
Study | Intent | Criteria |
---|---|---|
Anraku, 2004 | NR | NR |
Blackmon, 2009 | Curative and palliative | Local control of the primary tumor. Immediate metastasectomy was recommended if there was a single or limited number of pulmonary metastases and a long DFI (minimum duration not specified) otherwise chemotherapy was recommended followed by metastasectomy if there was stable, responding, or slowly progressing disease. |
Burt, 2011 | Curative | Control of all extra-thoracic disease and lack of a better alternative systemic therapy. |
Chen, 1998 | NR | NR |
Chudgar, 2017 | NR | NR |
Deguchi, 2020 | Palliative | NR |
Ercolani, 2005 | Curative | Metastatic disease limited to the liver. |
Faraj, 2015 | Curative | NR |
Farid, 2013 | NR | NR |
Goumard, 2018 | NR | NR |
Kato, 2020 | NR | Solitary metastasis of the spine involving three or fewer consecutive spinal levels, an Eastern Cooperative Oncology Group Performance Status (ECOG) equal to or less than three, stable disease, and three or fewer metastases in other organs. |
Kim, 2017 | NR | NR |
Lang, 2000 | NR | NR |
Liebl, 2007 | NR | NR |
Lin, 2015 | NR | Chemotherapy followed by metastasectomy was preferred in patients with a short disease-free interval, multiple lesions involving both lungs, high-grade sarcoma, or when preoperative chemotherapy was recommended for the primary tumor in synchronous disease. |
Marudanayagam, 2010 | NR | Resectable with enough functional liver remanent, extrahepatic metastases a preclusion to hepatic resection. |
Paramanathan, 2013 | Curative | Control of the primary tumor and no extra-thoracic disease. |
Rao, 2008 | NR | NR |
Smith, 2009 | Curative | NR |
Van Cann, 2018 | Curative | NR |
Zacherl, 2011 | NR | Resectable with enough functional liver remanent. |
Zhang, 2015 | Curative | Metastatic disease limited to the liver. |
Ziewacz, 2012 | Palliative | Life expectancy of at least three years and neurological deficits, refractory pain, radiographic instability, or tumor progression despite chemotherapy and radiation. |
1-Year Overall Survival | 2-Year Overall Survival | 3-Year Overall Survival | 4-Year Overall Survival | 5-Year Overall Survival | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Study | Site of Metastasectomy | Total # | # At Risk | Rate (%) | # At Risk | Rate (%) | # At Risk | Rate (%) | # At Risk | Rate (%) | # At Risk | Rate (%) |
Anraku, 2003 | Lung | 11 | 7 | 64 | 5 | 55 | 4 | 38 | 3 | 38 | 2 | 38 |
Burt, 2011 | Lung | 31 | 29 | 98 | 25 | 87 | 19 | 72 | 16 | 64 | 13 | 52 |
Chen, 1998 | Liver | 11 | 11 | 100 | 7 | 72 | 4 | 52 | 1 | 35 | 0 | 0 |
Deguchi, 2020 | Brain | 5 | 2 | 80 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Ercolani, 2005 | Liver | 10 | 8 | 80 | 6 | 60 | 6 | 60 | 5 | 50 | 3 | 30 |
Faraj, 2015 | Liver | 5 | 3 | 60 | 2 | 40 | 1 | 20 | 0 | 0 | 0 | 0 |
Farid, 2013 | Other | 11 | 11 | 100 | 9 | 100 | 7 | 78 | 7 | 78 | 6 | 67 |
Goumard, 2018 | Liver | 55 | 52 | 98 | 36 | 89 | 26 | 69 | 19 | 58 | 17 | 52 |
Kato, 2020 | Spine | 10 | 9 | 90 | 7 | 70 | 6 | 60 | 5 | 50 | 4 | 40 |
Kim, 2017 | Liver | 10 | 8 | 100 | 2 | 58 | 2 | 58 | 1 | 58 | 1 | 58 |
Lang, 2000 | Liver | 23 | 17 | 74 | 13 | 57 | 8 | 35 | 4 | 17 | 3 | 13 |
Paramanathan, 2013 | Lung | 13 | 12 | 92 | 11 | 92 | 8 | 76 | 6 | 66 | 4 | 66 |
Zacherl, 2011 | Liver | 9 | 5 | 56 | 5 | 56 | 3 | 33 | 1 | 11 | 1 | 11 |
Ziewacz, 2012 | Spine | 8 | 3 | 57 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Pooled overall survival (95% CI) | 86 (78–94) | 65 (52–79) | 49 (36–62) | 38 (24–53) | 31 (18–44) |
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Delisle, M.; Alshamsan, B.; Nagaratnam, K.; Smith, D.; Wang, Y.; Srikanthan, A. Metastasectomy in Leiomyosarcoma: A Systematic Review and Pooled Survival Analysis. Cancers 2022, 14, 3055. https://doi.org/10.3390/cancers14133055
Delisle M, Alshamsan B, Nagaratnam K, Smith D, Wang Y, Srikanthan A. Metastasectomy in Leiomyosarcoma: A Systematic Review and Pooled Survival Analysis. Cancers. 2022; 14(13):3055. https://doi.org/10.3390/cancers14133055
Chicago/Turabian StyleDelisle, Megan, Bader Alshamsan, Kalki Nagaratnam, Denise Smith, Ying Wang, and Amirrtha Srikanthan. 2022. "Metastasectomy in Leiomyosarcoma: A Systematic Review and Pooled Survival Analysis" Cancers 14, no. 13: 3055. https://doi.org/10.3390/cancers14133055