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Abstract
Pheochromocytomas are rare tumors originating in the adrenal medulla. They may be sporadic or in the context of a hereditary syndrome. A considerable number of pheochromocytomas carry germline or somatic gene mutations, which are inherited in the autosomal dominant way. All patients should undergo genetic testing. Symptoms are due to catecholamines over production or to a mass effect. Diagnosis is confirmed by raised plasma or urine metanephrines or normetanephrines. Radiology assists in the tumor location and any local invasion or metastasis. All the patients should have preoperative preparation with α-blockers and/or other medications to control hypertension, arrhythmia, and volume expansion. Surgery is the definitive treatment. Follow up should be life-long.
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Natkaniec M, Dworak J, Pędziwiatr M, Pisarska M, Major P, Dembiński M, Winiarski M, Budzyński A. Patients criteria determining difficulty of the laparoscopic lateral transperitoneal adrenalectomy. A retrospective cohort study. Int J Surg 2017; 43:33-37. [PMID: 28528215 DOI: 10.1016/j.ijsu.2017.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Identification of patients in whom adrenalectomy may be more difficult, can help in decision making in borderline and doubtful cases. The aim of the study was to determine patients criteria influencing difficulty of laparoscopic lateral transperitoneal adrenalectomy (LTA). MATERIAL AND METHODS The study enrolled 275 patients who underwent LTA. We analyzed the impact of gender, age, history of previous abdominal surgery, body mass index, risk of anesthesia measured as ASA scale, size, localization (left/right), and histological type of the tumor on parameters reflecting the level of difficulty of the procedure: operative time, intraoperative blood loss, conversion rate and intraoperative complications rate. RESULTS Multivariate logistic regression showed that following factors were associated with longer operative time: gender, tumor size and malignant lesions. In another model it was shown that age, size of the tumor and malignancy were associated with more excessive blood loss. Moreover, it was shown, that tumor size predictive factor for conversion. Univariate analysis showed a relation with malignancy, but multivariate analysis revealed no significance. CONCLUSIONS Patient age, gender, size and histological type of the tumor are criteria influencing parameters reflecting the level of difficulty. This criteria could be considered as predictors of the difficulty of LTA. Surgery in case of patients with combination of this risk factors should be handled by surgeon with sufficient experience to minimalize the risk of adverse events.
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Affiliation(s)
- Michał Natkaniec
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland.
| | - Jadwiga Dworak
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Michał Pędziwiatr
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Magdalena Pisarska
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Piotr Major
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Marcin Dembiński
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Marek Winiarski
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
| | - Andrzej Budzyński
- 2nd Department of General Surgery, Jagiellonian University, Kraków, Poland
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Leon-Ariza DS, Leon-Ariza JS, Leon-Sarmiento FE. "Unclassical" Combination of Smell Dysfunction, Altered Abdominal Nociception and Human Hypertension Associated "Classical" Adrenal-Augmentation. J Med Cases 2015; 6:527-533. [PMID: 26688704 DOI: 10.14740/jmc2330w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We report a 33-year-old female patient, who arrived to the emergency ward with an abdominal pain that suddenly started 10 days before admission. Simultaneously, the patient developed sudden arterial hypertension and smell disturbances. Conventional medical treatment for pain and arterial hypertension was effortless. Laboratory tests ruled out pancreatitis. Metanephrines in her urine were also normal. A dual-phase intravenous contrast computed tomography of the abdomen showed a large mass within left adrenal gland. Adrenocortical adenoma was diagnosed. The mass was not hypervascularized but positive for synaptophysin and chromogranin A. Importantly, these proteins are heavily involved with acetylcholine metabolism. The triad of olfactory disorders, pain and arterial hypertension normalized after surgically extracting the adrenal mass. To our knowledge, this medical case is the first reported patient exhibiting immediate recovery of such unclassical triad of local and remote findings. The function and dysfunction of key nanocholinergic pathways involved with smell, blood pressure and nociception would explain the pathophysiology of this unique medical case.
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Affiliation(s)
- Daniel S Leon-Ariza
- Faculty of Health Sciences, Universidad de Santander - UDES, Bucaramanga, Colombia ; Mediciencias Research Group, Unicolciencias/Universidad Nacional, Bogota, Colombia
| | - Juan S Leon-Ariza
- Mediciencias Research Group, Unicolciencias/Universidad Nacional, Bogota, Colombia ; Faculty of Medicine, Universidad de La Sabana, Chia, Colombia
| | - Fidias E Leon-Sarmiento
- Smell & Taste Center, Department of Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, PA, USA
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Laparoscopic sleeve gastrectomy and left adrenalectomy with supragastric approach. Surg Laparosc Endosc Percutan Tech 2010; 20:e195-8. [PMID: 21150401 DOI: 10.1097/sle.0b013e3181f32e81] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A female patient, 48-year-old, with morbid obesity (body mass index 42.5 kg/m2) complicated by hypertension, T2DM, and severe Obstructive Sleep Apnea Syndrome was candidated to bariatric surgery. During the preoperative work-up, an abdominal ultrasonography and an RMN showed an incidental left adrenal tumor with a diameter of 11 cm. The laboratory evaluation for the functional adrenal tumor was negative. A laparoscopic sleeve gastrectomy and left adrenalectomy with supragastric approach was successfully carried out. The minimally invasive treatment of coexisting abdominal pathologies such as morbid obesity and adrenal incidentalomas seem to be suitable and safe, providing several benefits in terms of surgical and anesthesiologic management and postoperative clinical outcomes. The supragastric approach may represent a valuable option for left adrenalectomy combined with laparoscopic sleeve gastrectomy.
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Dralle H, Machens A. European endocrine surgery in the 150-year history of Langenbeck’s Archives of Surgery. Langenbecks Arch Surg 2010; 395 Suppl 1:43-55. [PMID: 20217121 DOI: 10.1007/s00423-010-0615-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 02/11/2010] [Indexed: 11/25/2022]
Affiliation(s)
- Henning Dralle
- Department of General, Visceral and Vascular Surgery, University Hospital, Ernst-Grube-Strasse 40, Halle/Saale, Germany.
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Tatsugami K, Eto M, Hamaguchi M, Yokomizo A, Harano M, Naito S. What affects the results of a laparoscopic adrenalectomy for pheochromocytoma? Evaluation with respect to intraoperative blood pressure and state of tumor. J Endourol 2009; 23:101-5. [PMID: 19119805 DOI: 10.1089/end.2008.0279] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To investigate the factors that affect the operative data and to evaluate the validity of a laparoscopic adrenalectomy (LA) for pheochromocytoma. PATIENTS AND METHODS Between July 1993 and January 2008, 172 LAs were performed in this department, and 34 of them were for pheochromocytoma. The characteristics and operative data of LAs for pheochromocytoma were examined with respect to the intraoperative systolic blood pressure (SBP) and the side of tumor. RESULTS The intraoperative SBP rose to 180 mm Hg or more in 17 (50%) cases of LAs for pheochromocytomas. The analysis of SBP (<180 versus >180 mm Hg), however, showed that there were no differences in the operative data between the two groups. The tumor size was significantly associated with operative time (P < 0.05) or the blood loss (P < 0.05) in an LA for pheochromocytoma. The blood loss in LAs for right adrenal tumors was greater (150 versus 79 mL) than for left tumors (P < 0.01). In particular, some procedures for right large tumors had considerable blood loss and long procedural time. In a comparison of the operative data between pheochromocytoma and other adrenal tumors, the tumor was larger (4.3 versus 2.5 cm) and the blood loss was greater (100 versus 30 mL) than for other adrenal tumors. CONCLUSIONS The operative data showed no correlation with the intraoperative high SBP, but they were associated with the tumor state. Although the procedure seems to be influenced by the size and state of tumor, LA is not contraindicated for pheochromocytoma, and it can therefore be performed safely.
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Affiliation(s)
- Katsunori Tatsugami
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Is the laparoscopic adrenalectomy for pheochromocytoma the best treatment? Surgery 2007; 141:723-7. [PMID: 17560248 DOI: 10.1016/j.surg.2006.10.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Revised: 09/13/2006] [Accepted: 10/15/2006] [Indexed: 11/25/2022]
Abstract
BACKGROUND Laparoscopic adrenalectomy has become the gold standard for removing adrenal masses, but several authors still debate the role of laparoscopic adrenalectomy in pheochromocytoma. The purpose of this study was to evaluate the short- and long-term outcomes of laparoscopic versus open adrenalectomy for pheochromocytomas and to compare the feasibility and safety of laparoscopic adrenalectomy for neoplasms that are smaller than 6 cm versus those that are larger than 6 cm. METHODS From January 1990 to December 2005, the same team in our department carried out 221 adrenalectomies in 211 patients. A total of 64 of these patients underwent 71 adrenalectomies for pheochromocytoma, 24 patients (37%) had open adrenalectomy, and 40 patients (63%) had laparoscopic adrenalectomy. Sex, age, side and size of lesion, operating time, duration of hospital stay, need for intensive care, intraoperative blood pressure variations, blood loss, postoperative analgesia, return to oral nutrition, and complications were compared among groups. RESULTS An advantage of laparoscopic adrenalectomy over open adrenalectomy was observed in mean operating time, hospital stay, need for intensive care, intraoperative hypertension, intraoperative blood loss, postoperative analgesia, and return to oral nutrition (P <or= .035 in all). The analysis of tumor size (<or=6 vs >6 cm) in laparoscopic adrenalectomy showed that none of the variables differed significantly, except for intraoperative blood loss, which was greater for the larger neoplasms (P = .007). CONCLUSIONS Laparoscopic adrenalectomy, when performed by experienced laparoscopic surgeons, is preferable to open adrenalectomy for the majority of pheochromocytomas, and as long as there is no evidence of invasion of surrounding structures, tumor size does not appear to have a profound effect on surgical outcome.
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Toniato A, Boschin I, Bernante P, Opocher G, Guolo AM, Pelizzo MR, Mantero F. Laparoscopic adrenalectomy for pheochromocytoma: is it really more difficult? Surg Endosc 2007; 21:1323-6. [PMID: 17294305 DOI: 10.1007/s00464-006-9190-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Revised: 09/12/2006] [Accepted: 09/18/2006] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Laparoscopic adrenalectomy (LA) has become the gold standard technique for almost all the adrenal masses, but several Authors still debate about LA in pheochromocytoma. BACKGROUND The purpose of this study was to compare feasibility and safety of LA for pheo and analyze the results relative to LA for incidentaloma, Conn's disease and Cushing's disease. METHODS Between January 1994 and March 2006, 167 LAs were carried out in 160 consecutive patients at our Department and 46 of them were affected by pheo, 60 by Conn's disease, 34 by adrenal incidentaloma and 20 by Cushing's disease. The following parameters were statistically analysed: Side and size of lesion, conversion to open adrenalectomy (OA), operating time, length of hospital stay, intraoperative blood pressure variations, blood loss, blood transfusion, need for postoperative analgesia, resumption of oral nutrition and postoperative complications. RESULTS Successful LA was performed in 159 out of 167 cases (95.2%). Significant statistical advantages were observed for pheo, even if its average size was larger (p > 0.001), in terms of average operating time (p < 0.001), average length of hospital stay (p < 0.001), average intraoperative blood loss (p > 0.001), postoperative analgesia (p < 0.001), oral nutrition (p < 0.001). LA for patients with Cushing's disease (average length of hospital stay and intraoperative blood loss, p < 0.023 and p > 0.002 respectively) and with adrenal incidentaloma (intraoperative blood loss p < 0.009) seems to be a more challenging procedure. CONCLUSION The evaluation of this relatively large monoinstitutional experience suggests that LA could be considered the most suitable method for removing pheochromocytoma. This tumour tends to be larger than most functional cortical adenomas, nevertheless it allows even a significant reduction in operating time with a faster recovery.
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Affiliation(s)
- Antonio Toniato
- Institute of Surgical Pathology, Department of Medical and Surgical Sciences, University of Padua, Via Giustiniani 2, Padua, 35128, Italy.
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Yavuz N. Laparoscopic transperitoneal adrenalectomy using the LigaSure vessel sealing system. J Laparoendosc Adv Surg Tech A 2006; 15:591-5. [PMID: 16366864 DOI: 10.1089/lap.2005.15.591] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Laparoscopic adrenalectomy is being performed with increasing frequency in the surgical treatment of adrenal tumors. Among laparoscopic approaches to the adrenal glands, the transperitoneal access is preferred. Along with advances in technology, different energy systems have been utilized. Laparoscopic adrenalectomy has become easier with the use of the LigaSure vessel sealing system (Valleylab, Boulder, Colorado). MATERIALS AND METHODS Between January 2002 and August 2004, 23 laparoscopic transperitoneal adrenalectomies were performed in 22 patients using the LigaSure vessel sealing system: 16 of the patients were female, 6 were male and the mean age was 44 years (range, 17-70 years). Indications for surgery were non-functioning adenoma (n = 10), pheochromocytoma (n = 4), Cushing's syndrome (n = 5), Conn's syndrome (n = 2), and lymphoma (n = 1). The mean diameter of lesions was 4 cm (range, 1-7 cm). The distribution was 12 left, 9 right, and 1 bilateral adrenalectomies. RESULTS The mean operative time for unilateral adrenalectomies was 57 minutes (range, 30-75 minutes). The operative time for the patient with Cushing's disease in whom a bilateral adrenalectomy was performed was 180 minutes. All operations were completed laparoscopically. A nonsteroidal anti-inflammatory drug (Lornoxicam) was sufficient for postoperative analgesia. Oral feeding was started 6 hours postoperatively. When used, drains were removed on postoperative day 1. The mean postoperative hospital stay was 1.5 days (range, 1-3 days). Wound infections developed in two patients with Cushing's syndrome. There was no mortality. Histopathologic examination of specimens revealed a cortex adenoma in 16 cases (10 of which was nonfunctional), a pheochromocytoma in 4 cases, a bilateral cortical hyperplasia in 1 case, and a lymphoma in 1 case. CONCLUSION Laparoscopic adrenalectomy is an established method in the treatment of adrenal masses. Laparoscopic adrenalectomy as well as other laparoscopic procedures has become easier with the introduction of new energy systems. Vascular control and dissection of the gland by Liga- Sure is feasible. It makes the procedure easier and eventually shortens the operation time.
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Affiliation(s)
- Nihat Yavuz
- Department of General Surgery, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey.
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Abstract
BACKGROUND Laparoscopic adrenalectomy (LA) has become the procedure of choice for small benign lesions. Compared with open adrenalectomy (OA), it appears to achieve superior results in terms of recovery, cosmesis and morbidity. METHODS A Medline literature search (PubMed database, 1990-2003) was undertaken to identify relevant English language papers. Studies comparing LA with OA were categorized according to their level of evidence. Variables of outcome were analysed systematically for various adrenal pathologies. RESULTS No prospective randomized studies comparing LA with OA were identified. According to 20 comparative case-control studies (level 3b) and many case-series reports (level 4), the results of LA were reproducible and it has consistently been associated with faster recovery and lower morbidity than OA. The clinical outcome in hormonally active lesions was similar. The lateral transabdominal approach was the laparoscopic technique of choice; it was practised by 78.6 per cent of surgeons. Lesion sizes of 10-12 cm were cited as the upper limit for LA in many large series. Experience of 70 malignancies demonstrated the feasibility of LA, with short-term oncological results comparable to those of conventional surgery. CONCLUSION Despite a lack of a high level of evidence in its favour, LA has practically replaced OA in the management of small and medium-size benign functioning and non-functioning adrenal lesions, as it has proved to be as effective as OA with less associated morbidity. Although limited experience with large and malignant tumours shows some promise, present data are insufficient for clear conclusions to be drawn.
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Affiliation(s)
- A Assalia
- Division of Laparoscopy and Department of Surgery, Weill-Cornell College of Medicine, New York-Presbyterian Hospital, New York, New York 10021, USA
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O'Boyle CJ, Kapadia CR, Sedman PC, Brough WA, Royston CMS. Laparoscopic transperitoneal adrenalectomy. Surg Endosc 2003; 17:1905-9. [PMID: 14577024 DOI: 10.1007/s00464-002-8878-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2002] [Accepted: 05/08/2003] [Indexed: 10/26/2022]
Abstract
BACKGROUND From November 1993 to May 2002 a total of 172 laparoscopic adrenalectomies were attempted in 152 patients in centers throughout the United Kingdom. RESULTS The median age was 52 years (18-77 years). Sixty-three percent were female. Indications for resection were Conn's syndrome (60), pheochromocytoma (35), Cushing's disease (24), Cushing's adenoma (8), cortisol-secreting carcinoma (1), other secreting tumor (2), nonfunctioning adenoma (17), congenital adrenal hyperplasia (4), metastatic disease (7), nonsecreting adrenal carcinoma (2), others (12). Median size of the lesions was 3.0 cm (0.5-20 cm). Median operating time was 65 min (30-170 min). Conversion to an open procedure was necessary in 10 patients (7%). Minor morbidity occurred in nine patients (5%). Major morbidity occurred in two patients (pancreatitis, peritonitis). Median hospital stay was 3 days (1-16 days). At median follow-up of 36 months (1-105 months) five patients (4%) had persistent hypertension. No patient had evidence of recurrent hormonal excess. CONCLUSIONS Laparoscopic removal of the adrenal gland should be considered the surgical procedure of choice in experienced minimally invasive centers.
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Affiliation(s)
- C J O'Boyle
- Ward 60, Hull Royal Infirmary, Anlaby Road, Hull, HU3 2JZ, United Kingdom.
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12
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Affiliation(s)
- Wendy R Sackett
- Department of Surgery, Royal North Shore Hospital, Sydney, New South Wales, Australia
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Imai T, Kikumori T, Shibata A, Fujiwara M, Nakao A. Laparoscopic bilateral adrenalectomy for Cushing's syndrome due to ACTH-independent macronodular adrenocortical hyperplasia. Biomed Pharmacother 2003; 56 Suppl 1:120s-125s. [PMID: 12487267 DOI: 10.1016/s0753-3322(02)00220-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
We performed simultaneous bilateral laparoscopic total adrenalectomy in two patients with Cushing's syndrome due to ACTH-independent macronodular adrenocortical hyperplasia (AIMAH). Preoperative serum cortisol in the patients was 29.5 and 53.2 microg/dl, respectively. The clinical symptoms of the latter patient were advanced, and respiration was labored with orthopnea. Laparoscopic adrenalectomies were performed transabdominally in the sequential lateral decubitus positions with extension of the lateral abdominal wall of the affected side. Three 12-mm and three 5-mm trocars were positioned, and two trocar sites in the midline were used on both sides. The flexible fiberscope was inserted through the umbilical port. The adrenal glands were large, fragile, and multinodular. The maximal diameters of the removed glands were 7.8 and 8.7 cm, respectively. In both patients, the adrenal glands were successfully removed without fragmentation. The operation times were 505 and 320 min, and the estimated blood loss was 150 and 5 ml, respectively. Neither intraoperative nor postoperative complications occurred, although the latter patient required muscle training before ambulation on postoperative day 42. The procedures resulted in marked clinical improvements. Compliance with the substitutive therapy remained excellent, and the patients expressed a very high degree of satisfaction with the laparoscopic adrenal surgery. The procedures of bilateral laparoscopic adrenalectomy were successful, and provided increased experience with the laparoscopic techniques.
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Affiliation(s)
- T Imai
- Department of Surgery II, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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Easter DW, Katz M. Laparoscopic adrenalectomy for pheochromocytoma--a new standard? CURRENT SURGERY 2002; 59:450-4. [PMID: 15727788 DOI: 10.1016/s0149-7944(02)00630-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Affiliation(s)
- David W Easter
- Department of Surgery, University of California at San Diego, San Diego, California, USA
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Prager G, Heinz-Peer G, Passler C, Kaczirek K, Schindl M, Scheuba C, Niederle B. Surgical strategy in adrenal masses. Eur J Radiol 2002; 41:70-7. [PMID: 11750156 DOI: 10.1016/s0720-048x(01)00441-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Endoscopic adrenalectomy represents the "New Golden Standard" in the surgical treatment of benign adrenal lesions up to 6 cm. Open adrenalectomy is recommended for patients with suspected malignant disease and tumors larger than 6 cm. METHODS AND MATERIAL The surgical technique of trans- and retroperitoneal adrenalectomy is described. Reviewing literature the importance of the endoscopic approach and its role in the surgical treatment of adrenal lesions is analyzed. RESULTS As in open adrenalectomy different endoscopic approaches to the adrenals were developed: adrenal tumors can be removed endoscopically using a transperitoneal (patient in a supine or lateral decubitus position) or extraperitoneal route (patient in a lateral decubitus or prone position). Reviewing literature the endoscopic transperitoneal adrenalectomy is documented in 1425 patients. 4.6% (66 patients) had to be converted to an open procedure. Five hundred and forty-four tumors were removed by an extraperitoneal access. The conversion rate was 4.4% (24 patients). CONCLUSION The basis of excellent results are careful patient selection, evaluation and preoperative preparation in a center with experience in the open techniques and at least 20 endoscopic adrenalectomies per year.
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Affiliation(s)
- Gerhard Prager
- Department of Surgery, Division of General Surgery, University of Vienna Medical School, Währinger Guertel 18-20, A-1090 Vienna, Austria
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