26 research outputs found
Laparoscopic partial suprarenalectomy
Catedra de Chirugie nr. 4, Universitatea de Stat de Medicină și Farmacie “Nicolae Testemițanu”, Chișinău, Republica Moldova, Al XIII-lea Congres al Asociației Chirurgilor „Nicolae Anestiadi” și
al III-lea Congres al Societății de Endoscopie, Chirurgie miniminvazivă și Ultrasonografie ”V.M.Guțu” din Republica MoldovaIntroducere: Abordul laparoscopic în suprarenalectomie a devenit standartul de aur pentru diverse afecțiuni ale suprarenalei. Impactul
suprarenalectomiei totale este deosebit de grav atunci când procesul este bilateral, în special la pacienții tineri. Suprarenalectomia
parțială este binevenită în astfel de situații. Totodată dificultățile tehnice intraoperatorii și riscurile hemoragice sunt problemele
majore cu care se confruntă aceste operații. În cazuri selecționate de tumori benigne sub 3 cm, cu localizare anterioară sau laterală,
suprarenalectomia parțială este perfect justificată. Principalele repere sunt reprezentate de identificarea adenomului, pãstrarea
țesutului glandular restant vascularizat și disecția precisă cu menținerea spațiului de clivaj între tumorã și restul parenchimului.
Realizarea propriu zisã a rezecției țesutului glandular în condiții de securitate hemostatica este fezabilă și eficientă cu utilizarea
tehnicilor moderne de sigilare vascularã Liga-Sure.
Scopul: Implementarea interventiilor organomenajante in chirurgia tumorilor benigne ale suprarenalelor.
Material și metode: Pe parcursul a 10 ani (2009-2018) in clinică au fost supuși intervențiilor chirurgicale 144 pacienti cu diverse
formațiuni de volum ale suprarenalelor. Din lotul total 68 (47.2%) au suportat rezecții parțiale de glandă în bloc cu tumora.
Rezultate: Durata medie a intervențiilor chirurgicale organomenajante nu a înregistrat deosebiri esențiale de suprarenalectomia
totală, iar evoluția postoperatorie precoce a fost similară.
Concluzii: Ambele metode chirurgicale prezintă evoluție postoperatorie precoce similare, iar suprarenalectomia parțială necesită
dotari suplimentare pentru realizare totodată fiind metoda care ar permite prezervarea parenchimului hormonal.Background: The laparoscopic approach to suprarenalectomy has become a "gold standard" for various disorders of the suprarenal
gland. The overall suprarenalectomy is particularly severe when the process is bilateral, especially in young patients. Partial
suprarenalectomy is welcome in such situations. Intraoperative technical difficulties and hemorrhagic risks are the major problems
during these operations. In selected cases of benign tumors under 3 cm, with anterior or lateral localization, partial suprarenalectomy
is perfectly justified. The main milestones are the identification of the adenoma, preservation of the vascularized resting glandular
tissue and the precise dissection with the maintenance of the cleavage space between the tumor and the rest of the parenchyma. The
actual realization of the resection of the glandular tissue under hemostatic safety conditions is phased and efficient with the use of
modern vascular sealing techniques Liga-Sure.
The aim: A comparative study between the total and partial suprarenalectomies.
Methods and materials: Over the course of 10 years (2009-2018) in the clinic 144 patients with various suprarenal volume formations
underwent surgical interventions. From the total group 68 (47.2%), underwent partial tumor resection of the gland.
Results: The average duration of partial resection surgeries did not show any essential differences of total suprarenalectomy and
postoperative evolution was similar.
Conclusions: Both surgical methods have a similar postoperative evolution, but the partial suprarenalectomy is technically more
difficult to perform, but at the same time it is the only method that would maintain the endogen hormonal status
Resective surgery in adrenal tumors
Scopul lucrării. Implementarea în practica chirurgicală a metodelor minim invazive de tratament a modificat essential managementul
patologiilor chirurgicale.Astfel, adrenalectomia laparoscopică a devenit tratamentul standard pentru leziunile suprarenale.Dimensiunile
tumorilor glandelor suprarenale a fost unul din criteriile importante în abordul miniinvaziv.având cele mai bine rezultate clinice ale
tehnicilor în tratamentul tumorilor benigne de dimensiuni sub 5–6 cm. Totodată apar disensiuni în abordul miniinvaziv al leziunilor mai
mari (> 6 cm) sau în cazul tumori suprarenale potențial maligne. Scopul acestui studiu este de a evalua rezultatele adrenalectomiei
laparoscopice într-un centru de chirurgie cu experiență în chirurgia endocrină.
Materiale și metode. Într-o perioadă de 14 ani (2009-2022) în Clinica chirurgie nr.4 USMF “Nicolae Testemițanu” au fost supuși
intervențiilor chirurgicale 196 pacienți cu diverse formațiuni de volum ale suprarenalelor. Toți pacienții incluși în studiu au fost
examinați clinic și paraclinic (imagistic,hormonal), de comun acord cu endocrinologii, cardiologii, neurologii, indicațiile la operație
fiind stabilite într-un consiliu multidisciplinar. În alegerea metodei și a volumului intervenției chirurgicale a avut un rol important
prezentarea clinică,caracteristicile morfologice (localizare,dimensiuni) și hormonale, dar și posibilitățile tehnice de realizare a rezecției
parenchimului glandular au constituit factorii cei mai importanți în selecția metodei și volumului intervenției chirurgicale.
Rezultate. Dimensiunea medie a tumorilor suprarenale a fost de 4,2 cm (interval între 1,1 și 21 cm). Timpul operator mediu a fost
de 118 min. În analiza statistică, durata intervenției chirurgicale a fost corelată cu diametrul leziunii (p < 0,05). Printre complicațiile
intraoperatorii putem menționa doua hemoragii care intr-un caz doar a cerut conversie. Cele mai frecvente incidente intraoperatorii (6)
au fost cele cardiovasculare (hiper-, hipotenzii, dereglări de ritm cardiac). Durata medie a spitalizării a fost de 3,5 zile (interval 3-6 zile).
Concluzii. Adrenalectomia laparoscopică este o procedură sigură, cu o rată scăzută de morbiditate și lipsită de mortalitate.
Adrenalectomia parțială laparoscopică are indicații anumite în tumorile glandei suprarenale și este fezabilă din punct de vedere
tehnic. Rezacabilitatea glandei suprarenale cu prezervarea țesutului glandular este mult mai fezabilă prin utilizarea tehnologiei de
sigilare vasculară și prezintă condiția primordială în evitarea insuficienței adrenocorticale în perioada postoperatorie.Aim of study. The implementation in surgical practice of mini-invasive treatment methods has essentially changed the management
of surgical pathologies. Laparoscopic adrenalectomy has become the standard treatment for adrenal lesions. The size of adrenal
gland tumors was one of the important criteria in the mini-invasive approach. having the best clinical results of the techniques in the
treatment of benign tumors smaller than 5–6 cm.At the same time, there are disagreements in the mini-invasive approach of larger
lesions (> 6 cm) or in the case of potentially malignant adrenal tumors. The aim of this study is to evaluate the results of laparoscopic
adrenalectomy in a surgical center with experience in endocrine surgery.
Materials and methods. During 14 years (2009-2022) in the Surgery Clinic no. 4 SUMPh "Nicolae Testemițanu" 196 patients with
various volume formations of the adrenal glands were subjected to surgical interventions. All patients included in the study were
examined clinically and paraclinically (imaging, hormonal), in agreement with endocrinologists, cardiologists, neurologists, the
indications for surgery being established in a multidisciplinary council. In choosing the method and volume of the surgical intervention,
the clinical presentation, morphological (location, dimensions) and hormonal characteristics played an important role, but also the
technical possibilities of resection of the glandular parenchyma were the most important factors in the selection of the method and
volume of the surgical intervention.
Results. The mean size of the adrenal tumors was 4.2 cm (range 1.1 to 21 cm). The average operative time was 118 min. In statistical
analysis, the duration of surgery was correlated with the diameter of the lesion (p < 0.05). Among the intraoperative complications, we can mention two hemorrhages that in one case only required conversion. The most frequent intraoperative incidents (6) were
cardiovascular (hyper-, hypo-tension, cardiac rhythm disturbances). The average time of hospitalization was 3.5 days (interval 3-6
days).
Conclusions. Laparoscopic adrenalectomy is a safe procedure with a low morbidity rate and no mortality. Partial laparoscopic
adrenalectomy has certain indications in tumors of the adrenal gland and is technically feasible. The resacability of the adrenal gland
with the preservation of glandular tissue is much more feasible by using vascular sealing technology and is the primary condition in
avoiding adrenocortical insufficiency in the postoperative period
Using ocean colour remote sensing products to estimate turbidity at the Wadden Sea time series station Spiekeroog
Time series measurements at the Wadden Sea time series station Spiekeroog (WSS) in the southern North Sea were used to empirically develop approaches for determining turbidity from ocean colour remote sensing products (OCPs). Turbidity was observed by a submerged optical sensor. Radiometric quantities were collected using hyperspectral radiometers. Surface reflected glint correction was applied to the radiometric quantities to compute remote sensing reflectance (RRS) and the RRS was converted into perceived colour of seawater matching the Forel-Ule colour Index (FUI) scale. The empirical approaches for determining turbidity from OCPs showed good least squares linear correlations and statistical significance (R2 > 0.7, p < 0.001). These OCP approaches had relatively low uncertainties in predicting turbidity with encouraging mean absolute percent difference less than 31 %. The problem of bio-fouling on submerged sensors and the potential application of OCPs to monitor or correct for sensor drifts was evaluated. A protocol is proposed for the acquisition and processing of hyperspectral radiometric measurements at this optically complex station. Use of the classic FUI as a time series indicator of surface seawater changes did show promising results. The application of these OCPs in operational monitoring changes in water quality was also explored with the aim to evaluate the potential use of the WSS datasets in calibration and validation of satellite ocean colour remote sensing of these very turbid coastal waters
Laparoscopic approach to hepatic hydatid cyst
Scopul lucrării. Echinococoza hepatică este o maladie polimorfă în care tratamentul chirurgical are prioritate. Tot odata sunt mai multe aspecte discutabile legate atât de tactică, cât și caracterul tehnicilor chirurgicale antrenate în tratamentul acestei patologii. Implementarea tehnicilor miniinvazive în chirurgie a adus noi viziuni și în tratamentul chistului hidatic hepatic (CHH). Chirurgia laparoscopica are anumite limite în abordarea chistului hidatic hepatic, iar cunoașterea lor a determinat elaborarea unui algoritm de management al acestei afecțiuni.Materiale și metode. Experiența Clinicii Chirurgie nr.4 USMF,,Nicolae Testemițanu” vizează 67 pacienți cu CHH tratați pe parcursul a 8 ani (2014-2022), timp în care am implementat abordul laparoscopic. Am realizat intervenții chirurgicale laparoscopice la 12 (17%). Beneficiile chirurgiei laparoscopice și-au demonstrat amploarea și în cadrul acestor operații, iar riscurile contaminării sunt adeseori exagerate. Rezultate. Mediul de proveniență al pacienților a fost în majoritatea cazurilor cel rural - 83,53%, întrucât în acest areal posibilitatea de contaminare și dezvoltare a acestei patologii este mai mare (contact profesional cu animale, consum de alimente contaminate cu Taenie Echinococcus, etc.). Raportul vârstă/sex a demonstrat o ușoare predominarea femeilor 52%/48%, cu o vârstă medie de 48±2 ani. Pentru chirurgia laparoscopică pacienții au fost selectați cu multă prudență. Alegerea metodei de tratament a fost posibil de definitivat doar intraoperator. Astfel, considerăm potențial candidați pentru abordul laparoscopic segmentele hepatice II,III,IV,V,VI, fără fistule biliare, cu dimensiuni sub 10 cm., fără supurații, ramulență.Aim of study. Hepatic echinococcosis is a polymorphic disease in which surgical treatment has priority. At the same time, there are several debatable aspects related to both the tactics and the nature of the surgical techniques trained in the treatment of this pathology. The implementation of minimally invasive techniques in surgery has also brought new visions in the treatment of hepatic hydatid cyst (HHC). Laparoscopic surgery has certain limits in dealing with the HHC, and their knowledge determined the development of a management algorithm for this condition. Materials and methods. The experience of the Surgery Clinic no. 4 USMF, "Nicolae Testemițanu" consists of 67 patients with HHC treated during 8 years (2014-2022), during which we implemented the laparoscopic approach. We performed laparoscopic surgery in 12 cases (17%). The benefits of laparoscopic surgery have been demonstrated in these operations, the risks of contamination are often exaggerated.Results. The environment of the patients was in most cases rural - 83.53%, since in this area the possibility of contamination and development of this pathology is higher (professional contact with animals, consumption of food contaminated with Taenie Echinococcus, etc.). The age/sex ratio showed a slight predominance of women 52%/48%, with an average age of 48±2 years. For laparoscopic surgery, patients were carefully selected. The choice of treatment method could only be made intraoperatively. Thus, we consider liver segments II, III, IV, V, VI as potential candidates for the laparoscopic approach, without biliary fistulas, with sizes below 10 cm., without suppurations, ramulence
The complex treatment of morbid obesity associated with gastro-esophageal reflux disease
Scopul lucrării. Aproape 50% dintre pacienții cu obezitate morbidă (OM) prezintă semne ale refluxului gastro-esofagian (RGE)
patologic. Asocierea frecventă a OM cu BRGE impune necesitatea rezolvării concomitente a ambelor suferințe. Rezolvarea chirurgicală
a OM prin operații bariatrice, de obicei, nu rezolvă refluxul patologic. Din contra, la mai mult de jumătate (51%)dintre pacienți operați
RGE persistă, iar la 20% simptomele se agravează.
Materiale și metode. În studiu prospectiv au fost incluși 77 pacienți cu OM care au suportat intervenții chirurgicale bariatrice: 38 - bypass gastric (BpG) și 39 – gastric sleeve (GS).
Rezultate. RGE a fost apreciat pre- și postoperator prin examen radiologic,endoscopic și pH-monitoring 24h. Endoscopia digestivă
superioară (EDS) a pus în evidență esofagită peptică de reflux doar la 1/3 pacienți, marea majoritate prezentându-se prin boala de
reflux nonerozivă (BRNE). La pacienții cu OM care au suportat GS simptomele de reflux au persistat în toate cazurile, iar la 20% s-au
accentuat. Pacienții care au suportat BpG au demonstrat dispariția simptomelor RGE în 70% din cazuri. Toți pacienții care au prezentat
RGE postoperator au necesitat corecție medicamentoasă. La 5 pacienţi după GS, s-a asociat electrostimularea sfincterului esofagian
inferior (SEI). Esofagomanometria efectuată postoperator a confirmat mărirea tonusului SEI, cu diminuarea apariției refluxului în
perioada postoperatorie. La 5 pacienţi cu GS concomitent s-a efectuat Cura herniei hiatale, procedeul antireflux.
Concluzii. Asocierea BRGE cu OM este frecventă iar GS nu ameliorează refluxul deseori agravându-l. Rata succesului jugulării
refluxului este mai înaltă la asocierea tratamentului medicamentos cu metode alternative (electrostimularea SEI).Aim of study. Almost 50% of patients with morbid obesity (OM) show signs of pathological gastroesophageal reflux (GER). The
frequent association of OM with GERD requires the simultaneous resolution of both ailments. Surgical resolution of OM by bariatric
surgery usually does not resolve pathological reflux. On the contrary, in more than half (51%) of the operated patients GERD persists,
and in 20% the symptoms worsen.
Materials and methods. 77 patients with OM who underwent bariatric surgery were included in the prospective study: 38 - gastric
bypass (BpG) and 39 - gastric sleeve (GS).
Results. GER was assessed pre- and postoperatively by radiological, endoscopic examination and 24h pH-monitoring. Upper
digestive endoscopy (EDS) revealed peptic reflux esophagitis in only 1/3 of patients, the vast majority presenting with non-erosive
reflux disease (NERD). In patients with OM who underwent GS, reflux symptoms persisted in all cases, and in 20% they worsened.
Patients who underwent BpG demonstrated disappearance of GERD symptoms in 70% of cases. All patients who experienced
postoperative GER required drug correction. In 5 patients after GS, electrostimulation of the lower esophageal sphincter (LES) was
associated. Postoperative esophagomanometry confirmed the increase in LES tone, with a decrease in the occurrence of reflux in the
postoperative period. In 5 patients with GS, hiatal hernia treatment, the antireflux procedure, was simultaneously performed.
Conclusions. The association of GERD with OM is frequent and GS does not improve the reflux often worsening it. The success rate
of reflux jugulation is higher when combining drug treatment with alternative methods (SEI electrostimulation)
Post Nissen syndrome
Scopul lucrării. Tratamentul chirurgical antireflux, în special fundoplicatura laparoscopică Nissen este în prezent considerată
tratamentul chirurgical electiv în boala de reflux gastroesofagian (BRGE) refractară cu o eficacitate pe termen lung de peste 90%.
Printre factorii predictiv pentru un rezultat clinic bun postoperator în chirurgia antireflux se numără selecția adecvată a pacientului
și experiența chirurgului. Cu toate acestea, până la 30% din cazuri pot apărea simptome noi, persistă simptome de reflux sau pot
reapărea într-o anumită perioadă după procedura antireflux. Abordarea BRGE tot mai des și în mai multe centre de chirurgie miniminvazivă, antrenarea a tot mai mulți,în special tineri chirurgi în operațiile antireflux ne-au determinat sa revedem rezultatele operațiilor
antireflux și a noțiunii în general al sindromului postnissen.
Materiale și metode. Experiența clinicii noastre reprezintă 20 ani (2002-2022) de activitate în chirurgia antireflux, timp în care au fost
realizate 848 intervenții antireflux pentru BRGE și hernii hiatale dintre care 86 (10.1%) au fost reintervenții.
Rezultate. Au fost identificate diverse cauze ale suferințelor postoperatorii care trebuie stabilite cu multă prisosință în centrele
specializate. Persistența simptomelor după procedura chirurgicală,presupune aprecierea intervenției chirurgicale ca „eșuată”. În
cazul unui pacient care manifestă inițial controlul simptomelor, dar simptomele reapar apoi, se poate folosi termenul ,,recidivă”
sau „disfuncție”, iar atunci,când simptomele se agravează sau când apar simptome sau situații clinice care nu existau înainte de
operație,aceasta ar trebui considerată o „complicație”.
Concluzii. Disfagie postoperatorie și alte simptome dispeptice sunt mai frecvente după fundoplicaturile totale în cadrul operațiilor
antireflux și necesită o abordare integrată pentru a determina cel mai bun tratament posibil.Aim of study. Antireflux surgical treatment, especially laparoscopic Nissen fundoplication is currently considered the treatment of
choice in refractory gastroesophageal reflux disease (GERD) with a long-term efficacy of over 90%. The predictive factors of a good
postoperative clinical outcome in antireflux surgery include appropriate patient selection and surgeon experience. However, in up
to 30% of cases, new symptoms may appear, reflux symptoms persist, or may recur at some point after the antireflux procedure.
The GERD approach in more centers of minimally invasive surgery, an increased number of trainees, especially young surgeons in
antireflux techniques led us to review the results of antireflux surgeries and the notions of post Nissen syndrome in general.
Materials and methods. The experience of our clinic represents 20 years (2002-2022) of activity in antireflux surgery, during which
848 antireflux interventions were performed for GERD and hiatal hernias, of which 86 (10.1%) were reinterventions.
Results. In specialized centers various causes of postoperative suffering have been identified, The persistence of symptoms after the
surgical procedure implies the assessment of the surgical intervention as "failed". In the case of a patient who initially shows control
of symptoms, but symptoms then reappear, the term "recurrence" or "dysfunction" can be used, and when symptoms worsen or when
symptoms or clinical conditions that did not exist before surgery appear, this should be considered a "complication".
Conclusions. Postoperative dysphagia and other dyspeptic symptoms are more common after total fundoplications in antireflux
operations and require an integrated approach to determine the best possible treatment
Toward the Integrated Marine Debris Observing System
Plastics and other artificial materials pose new risks to the health of the ocean. Anthropogenic debris travels across large distances and is ubiquitous in the water and on shorelines, yet, observations of its sources, composition, pathways, and distributions in the ocean are very sparse and inaccurate. Total amounts of plastics and other man-made debris in the ocean and on the shore, temporal trends in these amounts under exponentially increasing production, as well as degradation processes, vertical fluxes, and time scales are largely unknown. Present ocean circulation models are not able to accurately simulate drift of debris because of its complex hydrodynamics. In this paper we discuss the structure of the future integrated marine debris observing system (IMDOS)thatisrequiredtoprovidelong-termmonitoringofthestateofthisanthropogenic pollution and support operational activities to mitigate impacts on the ecosystem and on the safety of maritime activity. The proposed observing system integrates remote sensing and in situ observations. Also, models are used to optimize the design of the system and, in turn, they will be gradually improved using the products of the system. Remote sensing technologies will provide spatially coherent coverage and consistent surveying time series at local to global scale. Optical sensors, including high-resolution imaging, multi- and hyperspectral, fluorescence, and Raman technologies, as well as SAR will be used to measure different types of debris. They will be implemented in a variety of platforms, from hand-held tools to ship-, buoy-, aircraft-, and satellite-based sensors. A network of in situ observations, including reports from volunteers, citizen scientists and ships of opportunity, will be developed to provide data for calibration/validation of remote sensors and to monitor the spread of plastic pollution and other marine debris. IMDOS will interact with other observing systems monitoring physical, chemical, and biological processes in the ocean and on shorelines as well as the state of the ecosystem, maritime activities and safety, drift of sea ice, etc. The synthesized data will support innovative multi-disciplinary research and serve a diverse community of users
Toward the integrated marine debris observing system
Plastics and other artificial materials pose new risks to the health of the ocean. Anthropogenic debris travels across large distances and is ubiquitous in the water and on shorelines, yet, observations of its sources, composition, pathways, and distributions in the ocean are very sparse and inaccurate. Total amounts of plastics and other man-made debris in the ocean and on the shore, temporal trends in these amounts under exponentially increasing production, as well as degradation processes, vertical fluxes, and time scales are largely unknown. Present ocean circulation models are not able to accurately simulate drift of debris because of its complex hydrodynamics. In this paper we discuss the structure of the future integrated marine debris observing system (IMDOS) that is required to provide long-term monitoring of the state of this anthropogenic pollution and support operational activities to mitigate impacts on the ecosystem and on the safety of maritime activity. The proposed observing system integrates remote sensing and in situ observations. Also, models are used to optimize the design of the system and, in turn, they will be gradually improved using the products of the system. Remote sensing technologies will provide spatially coherent coverage and consistent surveying time series at local to global scale. Optical sensors, including high-resolution imaging, multi- and hyperspectral, fluorescence, and Raman technologies, as well as SAR will be used to measure different types of debris. They will be implemented in a variety of platforms, from hand-held tools to ship-, buoy-, aircraft-, and satellite-based sensors. A network of in situ observations, including reports from volunteers, citizen scientists and ships of opportunity, will be developed to provide data for calibration/validation of remote sensors and to monitor the spread of plastic pollution and other marine debris. IMDOS will interact with other observing systems monitoring physical, chemical, and biological processes in the ocean and on shorelines as well as the state of the ecosystem, maritime activities and safety, drift of sea ice, etc. The synthesized data will support innovative multi-disciplinary research and serve a diverse community of users
Marketing Strategies Used By Medical Libraries Of Public Universities For Their Information Resources And Services In The North-Western Geopolitical Zone Of Nigeria
The paper examined the strategies used for marketing of information resources and services in medical libraries of public universities in the North-western geopolitical zone of Nigeria. The main objectives of the study is to identify the major strategies used in marketing of information resources and services and how to enhance the existing marketing strategies for optimum use of information resources and services.An explanatory sequential mixed methods research was used for the study. The study involved medical libraries of four public universities in the zone under study. A sample of 365 number of students and 4 number of heads of the medical libraries were chosen for the study. Questionnaire, interviews and observation were used as instruments for data collection. SPSS and Nvivo software were used to analysed the quantitative and the qualitative data collected. The findingd reveales that the major strategies used include advertisement, notice boards, use of social media, use of posters and pamphlets, exhibition and display, user oreintation program and user education. Others were seminars and workshops, SDI, CAS and handbook. The challenges surrounding the libraries\u27 strategies in marketing the information resources and services were the absence of adequate funding and lack of sufficient facilities that will facilitate marketing the information resources and services, among others. Therefore, it is recommended that there is the need for a policy to guides the strategies in use, adequate training should be given to library staff. The libraries should provide adequate facilities to facilitate marketing of information resources and services to their users
Acoustic and optical methods to infer water transparency at Time Series Station Spiekeroog, Wadden Sea
Water transparency is a primary indicator of optical water quality that is
driven by suspended particulate and dissolved material. A data set from the
operational Time Series Station Spiekeroog located at a tidal inlet of the
Wadden Sea was used to perform (i) an inter-comparison of observations
related to water transparency, (ii) correlation tests among these measured
parameters, and (iii) to explore the utility of both acoustic and optical
tools in monitoring water transparency. An Acoustic Doppler Current Profiler
was used to derive the backscatter signal in the water column. Optical
observations were collected using above-water hyperspectral radiometers and a
submerged turbidity metre. Bio-fouling on the turbidity sensors optical
windows resulted in measurement drift and abnormal values during quality
control steps. We observed significant correlations between turbidity
collected by the submerged metre and that derived from above-water radiometer
observations. Turbidity from these sensors was also associated with the
backscatter signal derived from the acoustic measurements. These findings
suggest that both optical and acoustic measurements can be reasonable proxies
of water transparency with the potential to mitigate gaps and increase data
quality in long-time observation of marine environments