Angiographic cross-filling between inferior petrosal sinuses and alteration of adrenocorticotropic hormone sampling results for tumor localization in Cushing disease
OBJECTIVE: Inferior petrosal sinus (IPS) sampling (IPSS) is a diagnostic procedure used to guide diagnostic localization of imaging-negative adrenocorticotropic hormone (ACTH)-secreting pituitary microadenomas. However, the efficacy of IPSS has been suboptimal at accurately lateralizing the adenoma, reducing surgical cure rates and leading to unintended pituitary dysfunction due to the added exploration. One rationale for the occasional imprecision is the existence of additional petrosal sinus collateral channels that connect the IPS bilaterally, which may lead to false localization results during sampling. The aim of this study was to explore a potential connection between normal anatomical variation in the angioarchitecture of the IPSs and the ACTH results obtained in subsequent IPSS tests.
METHODS: A retrospective review was performed on all cases between 1998 and 2013 involving patients at a single institution who underwent IPSS for radiographically equivocal pituitary microadenomas. Cases were reviewed for tumor laterality noted on either operative or pathology reports, as well as the presence of angiographic evidence of cross-filling between the sinuses. In addition, ACTH levels from the right and left IPSs were documented at baseline and at 2, 5, and 10 minutes after corticotropin-releasing hormone (CRH) administration. A ratio of the change in ACTH levels measured at the time of maximal response (10 minutes) versus the levels measured at the initial response (2 minutes) was computed for each patient and compared between patients by their angiographic cross-filling status.
RESULTS: There were 41 patients with a histopathologically confirmed right- or left-sided ACTH-secreting pituitary microadenoma who underwent preoperative IPSS. Among these patients, 28 (68%) showed angiographic evidence of cross-filling between the IPSs, and 13 showed no cross-filling. On average, ACTH levels increased by a factor of 3.91 ± 0.77 in the contralateral IPS in patients with angiographic cross-filling, compared with a factor increase of only 1.80 ± 0.27 in patients without cross-filling (p = 0.014). In comparison, ACTH levels increased by a factor of 2.01 ± 0.57 in the ipsilateral IPS in patients with cross-filling, and by 8.78 ± 7.30 in those without cross-filling (p = 0.373).
CONCLUSIONS: The presence of angiographic cross-filling, suggestive of a greater degree of vascular channel networking between the right and left IPS, is a significant factor influencing the measured rates of change of ACTH in IPSS and may impact the specificity of this test to accurately determine microadenoma laterality in the preoperative setting.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:140 |
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| Enthalten in: |
Journal of neurosurgery - 140(2024), 2 vom: 01. Feb., Seite 386-392 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Martini, Michael L [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 05.02.2024 Date Revised 05.02.2024 published: Electronic-Print Citation Status MEDLINE |
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| doi: |
10.3171/2023.6.JNS2320 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363702008 |
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| 100 | 1 | |a Martini, Michael L |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Angiographic cross-filling between inferior petrosal sinuses and alteration of adrenocorticotropic hormone sampling results for tumor localization in Cushing disease |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
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| 500 | |a Date Completed 05.02.2024 | ||
| 500 | |a Date Revised 05.02.2024 | ||
| 500 | |a published: Electronic-Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a OBJECTIVE: Inferior petrosal sinus (IPS) sampling (IPSS) is a diagnostic procedure used to guide diagnostic localization of imaging-negative adrenocorticotropic hormone (ACTH)-secreting pituitary microadenomas. However, the efficacy of IPSS has been suboptimal at accurately lateralizing the adenoma, reducing surgical cure rates and leading to unintended pituitary dysfunction due to the added exploration. One rationale for the occasional imprecision is the existence of additional petrosal sinus collateral channels that connect the IPS bilaterally, which may lead to false localization results during sampling. The aim of this study was to explore a potential connection between normal anatomical variation in the angioarchitecture of the IPSs and the ACTH results obtained in subsequent IPSS tests | ||
| 520 | |a METHODS: A retrospective review was performed on all cases between 1998 and 2013 involving patients at a single institution who underwent IPSS for radiographically equivocal pituitary microadenomas. Cases were reviewed for tumor laterality noted on either operative or pathology reports, as well as the presence of angiographic evidence of cross-filling between the sinuses. In addition, ACTH levels from the right and left IPSs were documented at baseline and at 2, 5, and 10 minutes after corticotropin-releasing hormone (CRH) administration. A ratio of the change in ACTH levels measured at the time of maximal response (10 minutes) versus the levels measured at the initial response (2 minutes) was computed for each patient and compared between patients by their angiographic cross-filling status | ||
| 520 | |a RESULTS: There were 41 patients with a histopathologically confirmed right- or left-sided ACTH-secreting pituitary microadenoma who underwent preoperative IPSS. Among these patients, 28 (68%) showed angiographic evidence of cross-filling between the IPSs, and 13 showed no cross-filling. On average, ACTH levels increased by a factor of 3.91 ± 0.77 in the contralateral IPS in patients with angiographic cross-filling, compared with a factor increase of only 1.80 ± 0.27 in patients without cross-filling (p = 0.014). In comparison, ACTH levels increased by a factor of 2.01 ± 0.57 in the ipsilateral IPS in patients with cross-filling, and by 8.78 ± 7.30 in those without cross-filling (p = 0.373) | ||
| 520 | |a CONCLUSIONS: The presence of angiographic cross-filling, suggestive of a greater degree of vascular channel networking between the right and left IPS, is a significant factor influencing the measured rates of change of ACTH in IPSS and may impact the specificity of this test to accurately determine microadenoma laterality in the preoperative setting | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cushing disease | |
| 650 | 4 | |a angiographic cross-filling | |
| 650 | 4 | |a corticotropic pituitary adenoma | |
| 650 | 4 | |a corticotropin | |
| 650 | 4 | |a inferior petrosal sinus sampling | |
| 650 | 4 | |a neuroendocrine disorders | |
| 650 | 4 | |a pituitary adenoma diagnosis | |
| 650 | 4 | |a pituitary surgery | |
| 650 | 4 | |a tumor | |
| 650 | 7 | |a Adrenocorticotropic Hormone |2 NLM | |
| 650 | 7 | |a 9002-60-2 |2 NLM | |
| 650 | 7 | |a Corticotropin-Releasing Hormone |2 NLM | |
| 650 | 7 | |a 9015-71-8 |2 NLM | |
| 700 | 1 | |a Ransom, R Chase |e verfasserin |4 aut | |
| 700 | 1 | |a Rechberger, Julian S |e verfasserin |4 aut | |
| 700 | 1 | |a O'Keeffe, Derek |e verfasserin |4 aut | |
| 700 | 1 | |a Young, William |e verfasserin |4 aut | |
| 700 | 1 | |a Atkinson, John L D |e verfasserin |4 aut | |
| 700 | 1 | |a Meyer, Fredric B |e verfasserin |4 aut | |
| 700 | 1 | |a Rinaldo, Lorenzo |e verfasserin |4 aut | |
| 700 | 1 | |a Carlstrom, Lucas |e verfasserin |4 aut | |
| 700 | 1 | |a Cloft, Harry J |e verfasserin |4 aut | |
| 700 | 1 | |a Van Gompel, Jamie |e verfasserin |4 aut | |
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