Felix Sebastian Oberhoffer

Dr. Felix Sebastian Oberhoffer


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 May 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
PLPengzhu Li
Pengzhu Li
DHDr. Nikolaus HAAS
Dr. Nikolaus HAAS
RDRobert Dalla-Pozza
Robert Dalla-Pozza
AJAndré Jakob
André Jakob
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
GMGuido Mandilaras
Guido Mandilaras
This review aims to investigate and summarize adverse health events in children and adolescents associated with energy drink (ED) consumption, while also exploring the impact of simultaneous trigger factors and/or preexisting health conditions. We searched the database of PubMed, Cochrane library, and Web of Science for cases associated with ED consumption in minors up to 9 May 2023. The literature written in English met inclusion criteria if patients were <18 years of age and the ED consumption was confirmed. Records, relevant articles, and reports that met all inclusion criteria were fully read by two researchers. In total, 18 cases reporting adverse health events were included. Of those, 45% affected the cardiovascular system, 33% the neuropsychological system, and 22% other organ systems. In 33% of cases, additional triggers were reported. In 44% preexisting health conditions were present. This literature review suggests that ED intake may well be associated with adverse health events in minors. The cardiovascular and the neuropsychiatric systems seem to be predisposed. ED consumption in combination with potential trigger factors or in the presence of preexisting health conditions appears to be critical. To prevent adverse health events in the future, children and adolescents should be informed about risk factors and responsible consumption behaviors.

31 January 2022 in Cells
Verified
Journal Article
Open access
PDF file
GMGuido Mandilaras
Guido Mandilaras
PLPengzhu Li
Pengzhu Li
RDRobert Dalla-Pozza
Robert Dalla-Pozza
DHDr. Nikolaus HAAS
Dr. Nikolaus HAAS
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
Beyond their effect on blood pressure, the effect of energy drinks on heart rate in children and teenagers has not been evaluated until now. Thus, this study aimed to investigate the acute cardiovascular effects of energy drinks in healthy children and teenagers. Twenty-six children and adolescents (mean age 14.49 years) received a commercially available energy drink (ED) and placebo on two consecutive days based on the maximum caffeine dosage as proposed by the European Food Safety Authority. Heart rhythm and electrocardiographic time intervals were assessed in a prospective, randomized, double-blind, placebo-controlled, crossover clinical study design. ED consumption resulted in a significantly increased number of supraventricular extrasystoles (SVES) compared to the placebo, whereas supraventricular tachycardia or malignant ventricular arrhythmias were not observed. The mean heart rate (HR) was significantly lower following consumption of EDs. In contrast, QTc intervals were not affected by EDs. Being the first of its kind, this trial demonstrates the cardiovascular and rhythmological effects of EDs in minors. Interestingly, EDs were associated with adverse effects on heart rhythm. Whether higher dosages or consumption in children with preexisting conditions may cause potentially harmful disorders was beyond the scope of this pilot study and remains to be determined in future trials. Trial Registration Number (DRKS-ID): DRKS00027580.

21 March 2022 in Frontiers in Cardiovascular Medicine
Verified
Journal Article
Open access
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
PLPengzhu Li
Pengzhu Li
AJAndré Jakob
André Jakob
RDRobert Dalla-Pozza
Robert Dalla-Pozza
NHNikolaus Alexander Haas
Nikolaus Alexander Haas
GMGuido Mandilaras
Guido Mandilaras
Background: The consumption of Energy Drinks (ED) is very popular among children and teenagers. While potential cardiovascular side effects of these beverages are suggested, the acute impact of ED consumption on the pediatric cardiovascular system has not been systematically examined yet. The aim of this study was to investigate the acute effects of ED consumption on blood pressure and heart rate in healthy children and teenagers.Methods: This study was a randomized, single-blind, placebo-controlled, crossover clinical trial. On two consecutive days, the study participants were asked to consume a weight-adjusted amount of an ED (3 mg caffeine per kg of body weight) or a placebo containing a similar amount of sugar but without conventional ED ingredients. Systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate were measured at the following time points: baseline as well as 30, 60, 120 and 240 min after beverage consumption.Results: In total, 27 healthy children and adolescents (mean age 14.53 ± 2.40 years, 14 male) were included in the present study. Compared to placebo intake, mean SBP was demonstrated to be up to 5.23 mmHg (p < 0.0001) and mean DBP up to 3.29 mmHg (p < 0.001) increased after ED consumption. Prevalence of elevated blood pressure, stage 1 and stage 2 hypertension was higher after ED consumption. Heart rate tended to be lower after ED consumption.Conclusions: The acute ED consumption is associated with a significantly increased SBP and DBP in healthy children and teenagers. Minors, particularly those with pre-existing health conditions, should be discouraged from drinking EDs.Clinical Trial Registration: https://www.drks.de/drks_web/, identifier: DRKS00027580.

Verified
Journal Article
Open access
PDF file
PLPengzhu Li
Pengzhu Li
GMGuido Mandilaras
Guido Mandilaras
AJAndré Jakob
André Jakob
RDRobert Dalla-Pozza
Robert Dalla-Pozza
DHDr. Nikolaus HAAS
Dr. Nikolaus HAAS
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
Adolescents are the main consumer group of energy drinks (ED). Studies suggest that acute ED consumption is associated with increased peripheral blood pressure. Little is known of the ED-induced effects on arterial stiffness. Therefore, this study aimed to investigate the acute effects of ED consumption on arterial stiffness in healthy children and teenagers by conducting a prospective, randomized, single-blind, placebo-controlled, crossover clinical trial. Study participants (n = 27, mean age = 14.53 years) consumed a body-weight-adjusted amount of an ED or a placebo on two consecutive days. Arterial stiffness was evaluated sonographically by two-dimensional speckle tracking of the common carotid artery (CCA) at baseline and up to four hours after beverage consumption. The ED intake led to a significantly decreased peak circumferential strain of the CCA (11.78 ± 2.70% vs. 12.29 ± 2.68%, p = 0.043) compared with the placebo. The results of this study indicate that the acute ED consumption might be associated with increased arterial stiffness in healthy children and teenagers. Minors, particularly those with increased cardiovascular morbidity, should be discouraged from ED consumption.

15 April 2023 in Pediatric Research
Verified
Journal Article
Open access
PDF file
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
RDRobert Dalla-Pozza
Robert Dalla-Pozza
AJAndré Jakob
André Jakob
NHNikolaus A. Haas
Nikolaus A. Haas
GMGuido Mandilaras
Guido Mandilaras
PLPengzhu Li
Pengzhu Li
Background: Energy drinks (EDs) are popular beverages among minors. To date, clinical studies investigating ED-induced effects on the pediatric cardiovascular system are sparse. This study aimed to investigate the effects of a single, bodyweight-adjusted ED dosage on 24-h ambulatory blood pressure monitoring (ABPM) in healthy children and adolescents. Methods: This study was a randomized, single-blind, placebo-controlled, crossover clinical trial. Study participants received a single, bodyweight-adjusted ED amount or a placebo drink on 2 consecutive days at similar morning hours. Twenty-four-hour ABPM was assessed via an automated oscillometric blood pressure device after beverage consumption on both study days. Results: A total of 17 healthy children and teenagers (13.90 (12.29–17.89) years) were included in the final analysis. The ED consumption led, compared to the placebo intake, to a significantly higher 24-h systolic (115.90 (110.22–118.04) vs. 110.64 (108.09–115.45) mmHg, p = 0.013) and diastolic blood pressure (66.08 (64.20–68.32) vs. 62.63 (61.40–66.46) mmHg, p = 0.005). Conclusions: The single, bodyweight-adjusted ED consumption is linked with a significantly higher systolic as well as diastolic 24-h blood pressure in healthy children and adolescents. Minors, particularly those with an increased cardiovascular morbidity, should be discouraged from drinking EDs. Impact: Energy drinks (EDs) are consumed by many children and teenagers. While adverse cardiovascular events after ED consumption were reported in the literature, the effects of these beverages on the pediatric 24-h blood pressure profile have not been systematically evaluated yet. In our manuscript, we demonstrate for the first time that acute ED consumption is associated with a significantly higher 24-h systolic blood pressure and diastolic blood pressure in healthy minors.

23 September 2022 in Sensors
Verified
Journal Article
Open access
PDF file
FOFelix Sebastian Oberhoffer
Felix Sebastian Oberhoffer
PLPengzhu Li
Pengzhu Li
AJAndré Jakob
André Jakob
RDRobert Dalla-Pozza
Robert Dalla-Pozza
DHDr. Nikolaus HAAS
Dr. Nikolaus HAAS
GMGuido Mandilaras
Guido Mandilaras
Background: Minors are considered the main consumer group of energy drinks (EDs). The aim of this study was to investigate the acute effects of ED consumption on left ventricular (LV) hemodynamics and efficiency in healthy children and teenagers. Methods: This study was a randomized, single-blind, placebo-controlled, crossover clinical trial. Study participants consumed a weight-adjusted amount of an ED or a placebo on two consecutive days. LV hemodynamics and efficiency parameters were evaluated non-invasively by generating LV pressure–volume loops (PVLs) through simultaneous echocardiography and blood pressure measurement. Results: A total of 24 children and teenagers (14.90 ± 2.27 years, 13 male) were included in the present study. Conventional echocardiographic parameters of LV function did not show significant differences between both beverage groups. The non-invasive generation of LV PVLs revealed a significantly lower cardiac efficiency 240 min after the ED consumption compared to the placebo intake (140.72 (133.21–149.73) mmHg vs. 135.60 (124.78–140.33) mmHg, p < 0.01). Conclusions: Acute ED consumption is associated with a significantly lower cardiac efficiency in healthy minors. The generation of non-invasive LV PVLs might be beneficial in the assessment of subtle changes in LV efficiency. Further studies need to investigate the influence of chronic ED consumption on LV function and morphology.