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Iskalni niz: "avtor" (Marko Hočevar) .

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1.
Lower tumour burden and better overall survival in melanoma patients with regional lymph node metastases and negative preoperative ultrasound
Gašper Pilko, Janez Žgajnar, Maja Marolt-Mušič, Marko Hočevar, 2012, izvirni znanstveni članek

Povzetek: Background. The purpose of the study was to evaluate the ability of ultrasound(US) and fine needle aspiration biopsy (FNAB) in reducing the numberof melanoma patients requiring a sentinel node biopsy (SNB); to compare the amount of metastatic disease in regional lymph nodes in SNB candidates with clinically uninvolved lymph nodes and of those with US uninvolved lymph nodes; and to compare the overall survival (OS) of both groups. Methods. Between 2000 and 2007, a SNB was successfully performed in 707 patients with melanoma. The preoperative US of the regional lymph node basins was performed in 405 SNB candidates. In 14 of these patients, the US-guided FNAB was positive and they proceeded directly to lymph node dissection. In 391 patients, the preoperative US was either negative (343 patients) or suspicious(48 patients) (US group). In the remaining 316 patients the preoperative US was not performed (non-US group). Results. The proportion of macrometastatic sentinel lymph nodes (SN), number of metastatic lymph nodes per patient and proportion of nonsentinel lymph node metastases were found to be lower in the US group compared to the non-US group. The smaller tumour burden of the US group was reflected in a significantly better OS of patients with SN metastases. Conclusions. The preoperative US of regional lymph nodes spares some patients with melanoma from undergoing a SNB. Patients with regional metastases and a negative preoperative US have a significantly lower tumour burden in comparison to those with clinically negative lymph nodes, which is also reflected in a better OS.
Objavljeno v DiRROS: 22.03.2024; Ogledov: 45; Prenosov: 16
.pdf Celotno besedilo (466,54 KB)

2.
Inguinal or inguino-iliac/obturator lymph node dissection after positive inguinal sentinel lymph node in patients with cutaneous melanoma
Nebojša Glumac, Marko Hočevar, Vesna Zadnik, Marko Snoj, 2012, izvirni znanstveni članek

Povzetek: The aim of the study was to determine whether the presence of inguinal sentinel lymph node (SLN) metastases smaller than 2 mm (micrometastases) subdivided according to the number of micrometastases predicts additional, non-sentinel inguinal, iliac or obturator lymph node involvement in completion lymph node dissection (CLND). Positive inguinal SLN was detected in 58 patients (32 female, 26 male, median age 55 years) from 743 consecutive and prospectively enrolled patients with primary cutaneous melanoma stage I and II who were treated with SLN biopsy between 2001 and 2007. Micrometastases in inguinal SLN were detected in 32 patients, 14 were single, 2 were double, and 16 were multiple. Twenty-six patients had macrometastases. No patient with any micrometastases or a single SLN macrometastasis in the inguinal region had any iliac/obturator non-sentinel metastases after CLND in our series. Furthermore, no patient with single SLN micrometastasis in the inguinal region had any non-sentinel metastases at all after CLND in our series. In these cases respective CLND might be omitted.
Objavljeno v DiRROS: 21.03.2024; Ogledov: 48; Prenosov: 19
.pdf Celotno besedilo (307,79 KB)

3.
Influence of magnesium sulphate infusion before total thyroidectomy on transient hypocalcemia - a randomised study
Nikola Bešić, Špela Žagar, Gašper Pilko, Barbara Perić, Marko Hočevar, 2008, izvirni znanstveni članek

Povzetek: Background. Transient hypocalcemia is the most common complication after thyroidectomy. Normomagnesemia is needed for normal secretion of PTH and end-organ responsiveness. Our aim was to determine the influence of infusion of magnesium sulphate before thyroidectomy on the incidence of laboratory and clinical transient hypocalcemia. Methods. In our prospective study, 48 patients (5 men, 43 women; age 22-73 years, median 45 years), who underwent total or near-total thyroidectomy, were randomised preoperatively. Half of them received intravenously 4 ml of 1M magnesium sulphate at the beginning of the surgical procedure, the other half were the control group. Serum concentrations of calcium, ionised calcium, magnesium, phosphate, albumin and PTH were measured prior to surgery and on the first day after surgery. Results. Laboratory postoperative hypocalcemia was present in 27% of patients and 23% of patients had clinical signs and/or symptoms of postoperative hypocalcemia. The concentration of total calcium (p=0.024) and of albumin (p=0.01) was lower in the group that received magnesium sulphate. Conclusions.The patients who received infusion of magnesium sulphate before total thyroidectomy had lower concentration of total serum calcium and albuminin comparison to the control group. There was no statistical differencein the incidence of clinical transient hypocalcemia.
Objavljeno v DiRROS: 08.03.2024; Ogledov: 55; Prenosov: 20
.pdf Celotno besedilo (72,12 KB)

4.
What is the most common mammographic appearance of T1a and T1b invasive breast cancer?
Maja Podkrajšek, Janez Žgajnar, Marko Hočevar, 2008, izvirni znanstveni članek

Objavljeno v DiRROS: 07.03.2024; Ogledov: 69; Prenosov: 19
.pdf Celotno besedilo (204,48 KB)

5.
Sentinel lymph node biopsy in patients with malignant melanoma
Marko Hočevar, Nikola Bešić, Marko Snoj, Tadeja Movrin, 2000, objavljeni povzetek znanstvenega prispevka na konferenci

Objavljeno v DiRROS: 25.01.2024; Ogledov: 114; Prenosov: 29
.pdf Celotno besedilo (78,90 KB)

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Melanom - kirurško zdravljenje
Marko Hočevar, 2007, objavljeni znanstveni prispevek na konferenci

Objavljeno v DiRROS: 06.12.2023; Ogledov: 138; Prenosov: 35
.pdf Celotno besedilo (697,77 KB)

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Kirurgija karcinoma Merklovih celic
Marko Hočevar, 2023, objavljeni znanstveni prispevek na konferenci

Povzetek: Karcinom Merklovih celic je redek nevroendokrini maligni tumor kože. Njegova incidenca v zadnjih letih narašča, njegova biologija je podobna biologiji kožnega melanoma in tudi zdravljenje je podobno zdravljenju bolnikov z melanomom. Kirurško zdravljenje predstavlja osnovni način zdravljenja karcinoma Merklovih celic. Diagnozo postavimo s pomočjo biopsije, ki je lahko citološka punkcija ali kirurška biopsija s 5-mm varnostnim robom. Pri bolnikih s klinično negativnimi regionalnimi bezgavkami opravimo široko ekscizijo z 1–2 cm lateralnega varnostnega roba do spodaj ležeče fascije in biopsijo varovalne bezgavke. Pri bolnikih s klinično pozitivnimi regionalnimi bezgavkami opravimo široko ekscizijo primarnega tumorja in disekcijo regionalne bezgavčne lože, ki je indicirana tudi po pozitivni biopsiji varovalne bezgavke. Kirurško zdravljenje oddaljenih zasevkov opravimo le v skrbno izbranih primerih oligometastaske bolezni po predstavitvi na multidisciplinarnemu konziliju.
Ključne besede: rak kože, melanom, kirurško zdravljenje
Objavljeno v DiRROS: 18.05.2023; Ogledov: 269; Prenosov: 107
.pdf Celotno besedilo (204,91 KB)
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10.
Kirurško zdravljenje melanoma
Marko Hočevar, 2023, objavljeni znanstveni prispevek na konferenci

Povzetek: Kirurško zdravljenje je najstarejši in še danes osnovni način zdravljenja kožnega melanoma. Pri bolnikih z melanomom tanjšim od 0,8 mm je ekscizija v lokalni anesteziji edino potrebno zdravljenje z več kot 95% ozdravitvijo. Pri bolnikih z melanomo debelejšim od 1 mm napravimo poleg ekscizije primarnega melanoma še biopsijo varovalne bezgavke, ki je najpomembnejši prognostični dejavnik. Bolniki z klinično ugotovljenimi zasevki v regionalnih bezgavkah potrebujejo disekcijo regionalne bezgavčne lože. V bližnji prihodnosti bomo ta poseg najverjetneje opravljali po neoadjuvantnem sistemskem zdravljenju. In transit zasevke omejene na ekstremitete lahko zdravimo glede na breme bolezni z elektrokemoterapijo ali hipertermično izolirano ekstremitetno perfuzijo. Pri oligometastaski bolezni ali pri bolnikih z rezistenco na sistemsko zdravljenje omejeno na posamične zasevke je smiselno opraviti metastazektomijo.
Ključne besede: rak kože, melanom, kirurško zdravljenje
Objavljeno v DiRROS: 17.05.2023; Ogledov: 215; Prenosov: 102
.pdf Celotno besedilo (230,88 KB)
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