30 research outputs found
A Battery in the Stenotic Esophagus of a Child with a Congenital Tracheoesophageal Fistula
A case of a three-year-old male child who was admitted to our hospital with the suspicion that he had swallowed a battery approximately one hour before admittance. The parents believed that it was a button-shaped lithium battery approximately 12 mm in diameter. A chest X-ray was taken immediately, and a battery was identified in the esophagus at the fifth thoracic vertebra. By reviewing the childās medical history, we found that the child had had surgery the day after birth due to congenital atresia of the esophagus and a tracheoesophageal fistula type III b. An esophagoscopy was performed one hour after admittance, and the battery was found to be partially past the scar from the first surgery. Because of that, the battery was pushed further toward the stomach, out of fear that retrieving the battery through the scarred section of the childās esophagus could damage the stenotic wall. Upon the next X-ray of the abdomen, the battery was observed in the stomach. The child was monitored, and X-rays were taken over the next several days. The battery was evacuated in stool eight days after it had been ingested
Cytotoxicity investigation of a new hydroxyapatite scaffold with improved structural design
Introduction Biodegradable porous scaffolds are found to be very promising bone substitutes, acting as a temporary physical support to guide new tissue regeneration, until the entire scaffold is totally degraded and replaced by the new tissue. Objective The aim of this study was to investigate cytotoxicity of a synthesized calcium hydroxyapatite-based scaffold, named ALBO-OS, with high porosity and optimal topology. Methods The ALBO-OS scaffold was synthesized by the method of polymer foam template. The analysis of pore geometry and scaffold wallstopography was made by scanning electron microscope (SEM). The biological investigations assumed the examinations of ALBO-OS cytotoxicity to mouse L929 fibroblasts, using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromidefor (MU) and lactate dehydrogenase (LDH) tests and inverse phase microscopy. Results The SEM analysis showed high porosity with fair pore distribution and interesting morphology from the biological standpoint. The biological investigations showed that the material is not cytotoxic to L929 cells. Comparison of ALBO-OS with Bio-Oss, as the global gold standard as a bone substitute, showed similar results in MTT test, while LDH test showed significantly higher rate of cell multiplication with ALBO-OS. Conclusion The scaffold design from the aspect of pore size, distribution, and topology seems to be very convenient for cell adhesion and occupation, which makes it a promising material as a bone substitute. The results of biological assays proved that ALBO-OS is not cytotoxic for L929 fibroblasts. In comparison with Bio-Oss, similar or even better results were obtained
KirurÅ”ko lijeÄenje recidivirajuÄeg metastatskog karcinoma doÅ”titne žlijezde
We present the case of a 48-year-old male patient who underwent surgery
for a recurrent metastatic parathyroid gland carcinoma in the patientās right paratracheal space of the
neck. The patient had undergone surgery for lower right parathyroid gland carcinoma 28 months
earlier. Results: The metastases were resected en bloc with an ipsilateral central neck dissection and
with the removal of the enlarged lower left parathyroid gland. After exploration of the remnant parathyroid
glands we noticed that lower left parathyroid gland was macroscopically enlarged so we decided
to remove it to prevent possible hypercalcemia in future and to also prevent possible recurrence
of cancer or development of a new primary, considering the identical embryological origin of the
lower parathyroid glands and possibility of synchronous, multiple tumors, which generally follow the
same embryological origin if they occur. The patient was also treated with radiation therapy after the
surgery. Conclusion: With the present surgical approach to recurrent metastatic parathyroid gland
carcinoma, we aimed to prevent the recurrence of cancer or development of new primary and prevent
or delay hypercalcemia in the future with all severe adverse metabolic states associated with high serum
calcium levels.Prikaz sluÄaja 48 godiÅ”njeg muÅ”kog bolesnika koji je operiran zbog recidvirajuÄeg metastatskog karcinoma doÅ”titne
žlijezde u paratrahealnom prostoru vrata desno. 28 mjeseci prije bolesnik je operiran poradi karcinoma donje desne doŔtitne
žlijezde. Rezultati: Metastaze su odstranjene zajedno s ipsilateralnom centralnom disekcijom desne strane vrata kao i poveÄana
donja lijeva doŔtitna žlijezda. Naime, nakon eksploracije preostalih doŔtitnih žlijezda, primjetili smo da je donja lijeva
doÅ”titna žlijezda makroskopski poveÄana, pa smo je odluÄili odstraniti zbog te Äinjenice te da preveniramo razvoj moguÄe
hiperkalcemije u buduÄnosti, a takoÄer i da preveniramo moguÄi recidiv karcinoma ili razvoj novog primarnog karcinoma
uzimajuÄi u obzir istu embrioloÅ”ku osnovu nastanka donjih doÅ”titnih žlijezda i moguÄnost razvoja istodobnih, sinhronih
karcinoma doÅ”titnih žlijezda koji, ukoliko se pojave, uglavnom prate istu embrioloÅ”ku osnovu. Bolesnik je lijeÄen i radioterapijom
nakon operacije. ZakljuÄak: Prikazanim kirurÅ”kim pristupom lijeÄenju recidivirajuÄeg metastatskog karcinoma doÅ”titne
žlijezde cilj nam je bio da sprijeÄimo ponovni recidiv karcinoma ili nastanak novog primarnog karcinoma i da sprijeÄimo
ili odgodimo razvoj moguÄe hiperkalcemije u buduÄnosti sa svim teÅ”kim Å”tetnim metaboliÄkim stanjima povezanima s visokim
razinama kalcija u serumu
Decontamination of Mycotoxin-Contaminated Feedstuffs and Compound Feed
Mycotoxins are known worldwide as fungus-produced toxins that adulterate a wide
heterogeneity of raw feed ingredients and final products. Consumption of mycotoxins-contaminated
feed causes a plethora of harmful responses from acute toxicity to many persistent health disorders
with lethal outcomes; such as mycotoxicosis when ingested by animals. Therefore, the main task for
feed producers is to minimize the concentration of mycotoxin by applying different strategies aimed
at minimizing the risk of mycotoxin effects on animals and human health. Once mycotoxins enter
the production chain it is hard to eliminate or inactivate them. This paper examines the most recent
findings on different processes and strategies for the reduction of toxicity of mycotoxins in animals.
The review gives detailed information about the decontamination approaches to mitigate mycotoxin
contamination of feedstuffs and compound feed, which could be implemented in practice
Pristup lijeÄenju tumorskog tromba folikularnog karcinoma Å”titnjaÄe u unutarnjoj jugularnoj i brahiocefaliÄnoj veni
Thyroid gland carcinoma causing tumor thrombus in the great veins of the neck
and mediastinum is a rare condition with poor prognosis. Invasion of the internal jugular vein by
thyroid gland carcinoma has been occasionally reported, but tumor thrombi extending to the great
veins of the mediastinum are reported extremely rarely. We present a treatment approach in a case of
follicular thyroid carcinoma intravascular tumor thrombus in the left internal jugular and left brachiocephalic
vein.Karcinom Å”titnjaÄe koji uzrokuje tumorske trombe u velikim venama vrata i medijastinuma je rijedak i ima loÅ”u prognozu.
Invazija unutarnje jugularne vene karcinomom Å”titnjaÄe se povremeno opisuje u Älancima, ali tumorski trombi koji zahvaÄaju
velike vene medijastinuma su iznimno rijetko opisani.
Prikazujemo pristup lijeÄenjuintravaskularnog tumorskog tromba folikularnog karcinoma Å”titnjaÄe u lijevoj unutranjoj
jugularnoj i lijevoj brahiocefaliÄnoj veni
Does Life along the Sea Carry Greater Risk of Thyroid Cancer?
Aim of this study was to determine whether there are any differences between coastal and inland Dalmatia in incidence
rates and clinical characteristics of thyroid cancer. Data on 651 persons who suffer from and have undergone surgery
for thyroid cancer have been analysed. All patients lived in Dalmatia between 1997 and 2006. Data were collected
via surveys, insight into medical histories and results of histopathological analysis. In Dalmatia, in the overall sample,
there are no statistically significant differences in incidence between coastal and inland areas (c
2=3.03; df=1; p=0.082).
Somewhat higher overall incidence has been recorded in the inland (8.5%000) than in the coastal Dalmatia (7.3%000).
In the overall sample, in Dalmatia, women make up 81.4% of patients and papillary cancer accounts for 80.0% of all thyroid
cancers. The ratio of papillary to folicullar cancer is 7.8:1 in coastal and 4.2:1 in inland Dalmatia. Papillary and
medullary types are more common in the coastal area and follicular and anaplastic cancer types in the inland area and
the differences are statistically significant (p>0.033). Epidemiological characteristics of thyroid cancer in coastal Dalmatia
are in accordance with the characteristics of this cancer as described in iodine-sufficient areas: the most common
type is papillary cancer, and the ratio of papillary to follicular is 7.8:1. Sex-wise, the coastal area records a higher ratio of
male patients (1:3.8) than the inland area (1:7.1). There are no statistically significant differences in thyroid cancer incidence
rates between coastal and inland Dalmatia. Epidemiological characteristics of thyroid cancer in inland Dalmatia
are in some ways more similar to those of continental Croatia. This result could be the consequence of previous iodine insufficiency
in inland Dalmatia
EPIDEMIOLOGICAL CHARACTERISTICS OF THYROID CANCER IN DALMATIA, CROATIA
Cilj istraživanja ove retrospektivne epidemioloÅ”ke studije bio je utvrditi epidemioloÅ”ke osobitosti karcinoma Å”titnjaÄe u Dalmaciji i usporediti ih s epidemioloÅ”kim osobitostima karcinoma Å”titnjaÄe u Hrvatskoj. KoriÅ”teni su podaci Hrvatskog registra za rak objavljeni u Hrvatskom zdravstveno-statistiÄkom ljetopisu i godiÅ”njim biltenima, te podaci o 651 bolesniku od raka Å”titnjaÄe operiranom u bolnicama Dalmacije u razdoblju 1997.-2006. godina. Stope incidencije u Dalmaciji usporeÄene su sa stopama u Hrvatskoj. NaÄeno je da je prosjeÄna, dobno standardizirana stopa incidencije karcinoma Å”titnjaÄe posljednjih deset godina u cijeloj Hrvatskoj 8,1, a u Dalmaciji 9,32 na 100.000 stanovnika. Razlika je statistiÄki znaÄajna (p<0,05). Stope incidencije (dobno standardizirana na europsko i svjetsko stanovniÅ”tvo, gruba, na temelju istraživanja) pokazuju trend porasta i znaÄajno su viÅ”e na podruÄju Dalmacije u odnosu na cijelu Hrvatsku. Spolna struktura oboljelih pokazuje da žene u odnosu na muÅ”karce Äetiri puta ÄeÅ”Äe obolijevaju. U Dalmaciji, u ukupnom uzorku, žene Äine 81,4% oboljelih, a papilarni karcinom Äini 80,03% oboljelih od karcinoma Å”titnjaÄe. Medijan životne dobi novooboljelih na podruÄju Dalmacije je 50 godina. ZakljuÄeno je da su stope incidencije karcinoma Å”titnjaÄe znaÄajno viÅ”e u Dalmaciji u odnosu na Hrvatsku. Po navedenim karakteristikama Dalmacija se ne razlikuje od ostalih priobalnih ili otoÄnih podruÄja svijeta s visokim stopama incidencije, a odnos papilarni: folikularni karcinom u istraživanom uzorku je 6,4:1.The causes of angioedema (AE), a self-limited, localized swelling of subcutaneous tissue or mucosa unaccompanied by urticaria, are diverse. The commonly applied label of āallergicā is frequently wrong and standard anti-allergic therapy can be ineffective. Types of AE could be categorized according to mediators which mediate vascular leakage: bradykinin AE (hereditary, acquired, angiotensin-converting enzyme inhibitor (ACEi)-related), histamine AE (allergic etiology), and various mediators mediated AE (pseudoallergic reaction to non-steroidal anti-inflammatory drugs). Idiopathic AE is a poorly understood syndrome. The growing relevance of AE without urticaria has been highlighted; angioedema is the most common cause of hospital admission among all acute allergic diseases. The diagnosis of AE is based on the presence of family history (hereditary), absence of family history with the onset during or after the fourth decade of life (acquired C1Inh deficiency), and treatment with ACEi (ACEi-related angioedema). About 0.1%-0.7% of patients taking ACEi develop angioedema as a well-documented but still frequently unrecognized side effect of drugs. Laboratory diagnosis is enabled by measuring serum levels of C1Inh antigen or C1Inh function. Type 1 (hereditary angioedema (HAE) was diagnosed when both antigenic and functional levels of C1Inh were below 50% of normal, and type 2 when functional levels of C1Inh were low, along with antigenic levels normal or higher. ACEi-related AE is diagnosed when AE recurs during therapy and disappears upon withdrawal. Symptoms may appear several years after therapy introduction. Severe acute attacks should be treated with C1Inh concentrate and icatibant, a selective and specific antagonist of bradykinin B2 receptors. Prophylaxis with attenuated androgens (danazol, stanazolol, oxandrolone) is effective in preventing symptom development
The value of contact endoscopy in the screening of precancerous lesions of laryngeal epithelium in smokers
Kontaktna endoskopija je neinvazivna dijagnostiÄka metoda koja pruža uvid u mikroskopsku sliku epitela sluznice larinksa, a stanice se analiziraju in vivo, Äime je uklonjena moguÄnost oÅ”teÄenja i
deformiranja stanica pri izradi preparata. U radu smo metodom kontaktne endoskopije analizirali epitel sluznice glasnica kod bolesnika koji joÅ” nemaju kliniÄkih simptoma bolesti. PoÄetne promjene larinksa su makroskopski nevidljive, a rano prepoznavanje ovih promjena omoguÄava bolju prognozu i jednostavnije lijeÄenje. Ovaj rad pokazuje znatno veÄu uÄestalost poÄetnih patoloÅ”kih promjena larinksa u puÅ”aÄa u odnosu na nepuÅ”aÄe. Ova pretraga je pogodna i kod bolesnika s kroniÄnim laringitisom ili izraženijom
leukoplakijom, u procjeni mjesta biopsije za patohistoloÅ”ku pretragu, jer se time dobiva pouzdanija dijagnoza uz manje oÅ”teÄenje sluznice larinksa.
Pretragu bi bilo poželjno provesti i u puÅ”aÄa kod kojih je doÅ”lo do promjene glasa, jer se neinvazivnom metodom dobiva mikroskopski uvid u poÄetne patoloÅ”ke promjene epitela sluznice glasnica.Contact endoscopy as a noninvasive diagnostic method provides an insight into the microscopic picture of laryngeal mucosa epithelium. The cells are analyzed in vivo, thus obviating the possible cell damage and distortion on preparation. In the present study, vocal cord mucosa epithelium was analyzed by contact endoscopy in subjects still free from clinical symptoms of disease. Initial laryngeal lesions are macroscopically invisible, and early detection of these changes is associated with better prognosis and easier management. The present study also demonstrated a considerably higher prevalence of initial pathologic lesions of the larynx in smokers versus nonsmokers. This method is also suitable for patients with chronic laryngitis or pronounced leukoplakia to identify the best site of biopsy for histopathologic analysis, as it offers a more reliable diagnosis with less damage to laryngeal mucosa.
This noninvasive method should preferably be also used in smokers with voice alteration because it provides a microscopic insight into initial pathologic lesions of the vocal cord mucosa epithelium
The value of contact endoscopy in the screening of precancerous lesions of laryngeal epithelium in smokers
Kontaktna endoskopija je neinvazivna dijagnostiÄka metoda koja pruža uvid u mikroskopsku sliku epitela sluznice larinksa, a stanice se analiziraju in vivo, Äime je uklonjena moguÄnost oÅ”teÄenja i
deformiranja stanica pri izradi preparata. U radu smo metodom kontaktne endoskopije analizirali epitel sluznice glasnica kod bolesnika koji joÅ” nemaju kliniÄkih simptoma bolesti. PoÄetne promjene larinksa su makroskopski nevidljive, a rano prepoznavanje ovih promjena omoguÄava bolju prognozu i jednostavnije lijeÄenje. Ovaj rad pokazuje znatno veÄu uÄestalost poÄetnih patoloÅ”kih promjena larinksa u puÅ”aÄa u odnosu na nepuÅ”aÄe. Ova pretraga je pogodna i kod bolesnika s kroniÄnim laringitisom ili izraženijom
leukoplakijom, u procjeni mjesta biopsije za patohistoloÅ”ku pretragu, jer se time dobiva pouzdanija dijagnoza uz manje oÅ”teÄenje sluznice larinksa.
Pretragu bi bilo poželjno provesti i u puÅ”aÄa kod kojih je doÅ”lo do promjene glasa, jer se neinvazivnom metodom dobiva mikroskopski uvid u poÄetne patoloÅ”ke promjene epitela sluznice glasnica.Contact endoscopy as a noninvasive diagnostic method provides an insight into the microscopic picture of laryngeal mucosa epithelium. The cells are analyzed in vivo, thus obviating the possible cell damage and distortion on preparation. In the present study, vocal cord mucosa epithelium was analyzed by contact endoscopy in subjects still free from clinical symptoms of disease. Initial laryngeal lesions are macroscopically invisible, and early detection of these changes is associated with better prognosis and easier management. The present study also demonstrated a considerably higher prevalence of initial pathologic lesions of the larynx in smokers versus nonsmokers. This method is also suitable for patients with chronic laryngitis or pronounced leukoplakia to identify the best site of biopsy for histopathologic analysis, as it offers a more reliable diagnosis with less damage to laryngeal mucosa.
This noninvasive method should preferably be also used in smokers with voice alteration because it provides a microscopic insight into initial pathologic lesions of the vocal cord mucosa epithelium
Glomus tumor of the lingual base: a case report
Glomus tumori su pretežito benigni neuroendokrini tumori nastali od ekstraadrenalnih paraganglija autonomnog živÄanoga sustava. Iako su vrlo rijetki, problemi vezani za njihovu pravodobnu dijagnozu i lijeÄenje, Äine ih zanimljivim i zahtjevnim. U radu je prikazan bolesnik u dobi od 24 godine s glomus tumorom baze jezika. Tumor je dokazan radioloÅ”kim metodama (kompjutorizirana tomografija i angiografija).
Terapija je bila iskljuÄivo kirurÅ”ka. Do sada je u literaturi opisan samo jedan sluÄaj paraganglioma orofarinksa.Glomus tumors generally are benign neuroendocrine tumors originating from extra-adrenal paraganglia of the autonomic nervous system. Although very rare, the problems associated with timely diagnosis and treatment of glomus tumors make them rather intriguing and demanding. A case is presented of a 24-yearold man with glomus tumor of the lingual base. The tumor was verified by radiological methods
(computerized tomography and angiography) and treated exclusively by surgical approach. To our knowledge, a single case of oropharyngeal paraganglioma has been reported in literature