Simon Ritter

ORCID: 0009-0007-8041-5044
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About
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Research Areas
  • Congenital Heart Disease Studies
  • Respiratory viral infections research
  • Cardiac Valve Diseases and Treatments
  • Cardiovascular and Diving-Related Complications
  • Cardiac electrophysiology and arrhythmias
  • Hemodynamic Monitoring and Therapy
  • Mechanical Circulatory Support Devices
  • Renal function and acid-base balance
  • COVID-19 and Mental Health
  • Long-Term Effects of COVID-19
  • Atrial Fibrillation Management and Outcomes
  • Disaster Response and Management
  • Infective Endocarditis Diagnosis and Management
  • Intestinal Malrotation and Obstruction Disorders
  • Viral Infections and Vectors
  • Congenital gastrointestinal and neural anomalies
  • Infectious Disease Case Reports and Treatments
  • Viral gastroenteritis research and epidemiology
  • Chronic Lymphocytic Leukemia Research
  • Pneumonia and Respiratory Infections
  • Patient-Provider Communication in Healthcare
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Cardiac Fibrosis and Remodeling
  • Coronary Artery Anomalies
  • Parathyroid Disorders and Treatments

German Center for Lung Research
2025

Medizinische Hochschule Hannover
2024-2025

Triemli Hospital
2009-2019

University Hospital of Zurich
2008-2019

University of Geneva
2019

University of Zurich
2019

Stadtspital Waid
2019

University Hospital of Geneva
2019

Institut für Berufliche Aus- und Fortbildung
2014

Staten Island University Hospital
1999

Balloon coarctation angioplasty (BCA) was performed in seven consecutive patients (five boys and two girls) 18 months to years old (mean 9.5) with isolated discrete unoperated of the aorta. A No. 8F or 9F catheter chosen balloon lengths 30 40 mm maximum inflation diameters 1 less than smallest measured aortic diameter determined cm proximal site. 10 sec inflation-deflation cycle 6 8 atmospheres (90 120 psi) performed. The peak systolic pressure gradient (PSG) before BCA ranged from 35 70 Hg...

10.1161/01.cir.75.3.600 article EN Circulation 1987-03-01

Abstract Introduction There is limited clinical experience with the single-indicator transpulmonary thermodilution (pulse contour cardiac output, or PiCCO) technique in critically ill medical patients, particularly those acute heart failure (AHF). Therefore, we compared function of patients AHF sepsis using pulmonary artery catheter (PAC) and PiCCO technology. Methods This retrospective observational study was conducted intensive care unit a university hospital. Twelve nine severe septic...

10.1186/cc7994 article EN cc-by Critical Care 2009-08-11

Post-COVID-19 syndrome (PCS; also known as "long COVID") is a relatively novel disease comprising physical, psychological, and cognitive complaints persisting several weeks to months after acute infection with SARS-CoV-2. Approximately 10% of patients COVID-19 are affected by long-term symptoms. However, effective treatment strategies lacking. The ErgoLoCo (Occupational Therapy [Ergotherapie] for Long COVID) study was designed develop evaluate occupational therapy (OT) concept online...

10.2196/50230 article EN cc-by JMIR Research Protocols 2024-02-21

Balloon dilatation angioplasty was successfully performed in five patients (ages 18 months to 17 years) with discrete aortic coarctation. The catheter size No. 8F or 9F. Selection of balloon diameter based on angiographic measurements the aorta determined proximal and distal coarctation site. A 10 sec inflation-deflation cycle at 6 8 atmospheres (90 120 psi) performed. systolic pressure gradients across before ranged from 35 70 mm Hg. Systolic after 0 All had normalized blood immediately....

10.1161/01.cir.70.5.903 article EN Circulation 1984-11-01

Hintergrund: Seit Sommer 2024 empfiehlt das RKI die passive Immunisierung von Neugeborenen und Säuglingen mit Nirsevimab zur Prävention schwerer RSV-Infektionen im ersten Lebensjahr. Public-Health-Effekte sind nur bei einer breiten Anwendung der Prophylaxe zu erwarten. Bisher liegen keine Daten Awareness für RSV assoziierten Erkrankung sowie Akzeptanz Eltern in Deutschland vor.

10.1055/s-0045-1802521 article DE Klinische Pädiatrie 2025-02-28

This is the case of a 49-year-old female presenting in sustained cardiogenic shock due to an adrenal pheochromocytoma. She was rescued by venoarterial extracorporeal membrane oxygenation. The presence catecholamine-secreting tumor confirmed highly elevated plasma metanephrines and catecholamines. Successful open adrenalectomy performed under protective life support full anticoagulation early after shock. patient could be weaned off mechanical rapidly made cardiopulmonary recovery.

10.1510/icvts.2011.266023 article EN Interactive Cardiovascular and Thoracic Surgery 2011-03-22

ABSTRACT Background Research shows that when patients and health care providers share responsibility for clinical decisions, both patient satisfaction quality of increase, resource use decreases. Yet few studies have assessed how to train residents shared decision-making (SDM) in their practice. Objective We developed evaluated a SDM training program internal medicine. Methods Senior medicine from 3 hospitals Switzerland were shortly before 2 months after completing included 2-hour workshop...

10.4300/jgme-d-18-00849 article EN Journal of Graduate Medical Education 2019-08-01

The development of a system that images intracardiac anatomy cross-sectionally while simultaneously displaying blood flow in realtime has the potential increasing diagnostic capabilities evaluation congenital heart lesions. This would translate into ability to visualize lesions not identified by standard M-mode, two dimensional (2-D), pulsed, and continuous wave Doppler modalities. A review 1000 consecutive studies our laboratory was performed. color mapping performed each case after...

10.1002/clc.4960091201 article EN Clinical Cardiology 1986-12-01

Noninvasive cardiac imaging has dramatically altered the practice of cardiology, specifically, pediatric patient with congenital heart disease over past decade. Since introduction transesophageal echocardiography nearly 15 years ago, addition high‐resolution cross‐sectional combined Doppler color flow mapping provided a new window to examine heart. Recently, miniaturization probe “pediatric‐size” enabled its use in smallest infants add significantly assessment malformations. Most recently,...

10.1111/j.1540-8175.1990.tb00424.x article EN Echocardiography 1990-11-01

<sec> <title>BACKGROUND</title> Post–COVID-19 syndrome (PCS; also known as “long COVID”) is a relatively novel disease comprising physical, psychological, and cognitive complaints persisting several weeks to months after acute infection with SARS-CoV-2. Approximately 10% of patients COVID-19 are affected by long-term symptoms. However, effective treatment strategies lacking. The ErgoLoCo (Occupational Therapy [Ergotherapie] for Long COVID) study was designed develop evaluate occupational...

10.2196/preprints.50230 preprint EN 2023-06-26

Abstract Seasonal respiratory syncytial virus (RSV) lower infections (RSV-LRI) and bronchiolitis in children remain a high burden to medical facilities. Studies evaluating the practical approach outpatient settings are scarce. We conducted survey provide an insight into management pediatric offices Germany. Invitations for participation online were sent 623 providers of primary care via email. Recipients randomly chosen from national databanks based on zip codes. The response rate was 16,2%,...

10.1055/a-2380-2878 article EN Klinische Pädiatrie 2024-09-20

A prolonged QT interval may be associated with torsades de pointes and lead to sudden cardiac death. The aim of this study was determine both the frequency prolongation administration prolonging drugs perioperatively in surgery.

10.1186/cc8366 article EN cc-by Critical Care 2010-01-01

Cardiac dysfunction is an important organ manifestation of severe sepsis, and its occurrence increases with disease severity. Similarly, patients suffering from acute heart failure are characterised by a poor cardiac performance high mortality. We compared the function index (CFI), marker myocardial contractility other hemodynamic variables, in sepsis or septic shock studied their relationship ICU

10.1186/cc6631 article EN cc-by Critical Care 2008-01-01

Zusammenfassung. Ältere Patienten mit vorbestehender Nierenfunktionseinschränkung und Einnahme von Nierenfunktions-hemmenden Volumen-depletierenden Medikamenten samt gleichzeitiger Kalziumkarbonat weisen eine hohe Vulnerabilität bezüglich der Kalzium-Homöostase somit ein erhöhtes Risiko für Hyperkalzämie auf. Die Inzidenz des Milch-Alkali-Syndroms hat in den letzten Jahren wegen vermehrten Kalziumkarbonat-Präparaten zugenommen gehört als dritthäufigste Ätiologie Hyperkalzämien früh die...

10.1024/1661-8157/a003234 article DE Praxis 2019-05-01

When assessing tumor response to therapy on CT, one frequently observes changes that lie within RECIST boundaries of stable disease (-30%/+20%). We investigated the minimum lesion change radiologists are able detect without measuring.

10.1055/s-0034-1372740 article EN RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 2014-04-22

Eine 82-jahrige Patientin mit einer bekannten chronischen lymphatischen Leukamie (CLL) wurde wegen zunehmender Mudigkeit hospitalisiert.

10.4414/smf.2016.02706 article DE Swiss Medical Forum ‒ Schweizerisches Medizin-Forum 2016-07-12

Objectives: Prolonged QT-interval may be associated with torsades-de-pointes and lead to sudden cardiac death. Aim of this study was determine the frequency administration QT-prolonging drugs perioperatively in cardiac-surgery.

10.1055/s-0030-1269190 article EN The Thoracic and Cardiovascular Surgeon 2011-01-20

Durch eine Erstinfektion mit VZV kann es im Erwachsenenalter zur intubationspflichtigen Varizellenpneumonie Entwicklung eines ARDS kommen. Angesichts des potentiell letalen Verlaufs einer sollten bei typischer Klinik Varizellen aktiv gesucht und behandelt werden, auch wenn die anamnestischen Angaben in der Kindheit durchgemachte Windpockeninfektion vermuten lassen.

10.4414/smf.2013.01730 article DE Swiss Medical Forum ‒ Schweizerisches Medizin-Forum 2013-12-11

Eine 80-jährige Patientin wurde wegen einer progredienten Müdigkeit und rezidivierenden Stürzen hospitalisiert. Das Thorax-Röntgenbild zeigte luftgefüllte Darmschlingen unterhalb des rechten Zwerchfells mit einem rechtsseitigen Zwerchfellhochstand.

10.4414/smf.2013.01643 article DE Swiss Medical Forum ‒ Schweizerisches Medizin-Forum 2013-09-11

Durch eine Erstinfektion mit VZV kann es im Erwachsenenalter zur intubationspflichtigen Varizellenpneumonie Entwicklung eines ARDS kommen. Angesichts des potentiell letalen Verlaufs einer sollten bei typischer Klinik Varizellen aktiv gesucht und behandelt werden, auch wenn die anamnestischen Angaben in der Kindheit durchgemachte Windpockeninfektion vermuten lassen.

10.4414/fms.2013.01730 article DE Forum Médical Suisse ‒ Swiss Medical Forum 2013-12-11

10.4414/cvm.2008.01309 article EN cc-by-nc-nd Kardiovask Med 2008-02-22
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