Marwan Hamiko

Dr. Marwan Hamiko

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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30 April 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
MHMarwan Hamiko
Marwan Hamiko
SSSaad Salamate
Saad Salamate
MNMaedeh Ayay Nassari
Maedeh Ayay Nassari
ASAndre Späth
Andre Späth
SSSami Sirat
Sami Sirat
Farhad BakhtiaryFarhad Bakhtiary
Farhad Bakhtiary
Background: Recently, minimally invasive access via right anterolateral mini-thoracotomy (RAMT) has been gaining popularity in cardiac surgery. This approach is also an option for surgeons performing aortic surgery. The aim of this study is to present our surgical method, highlighting the total endoscopic minimally invasive approach via RAMT for replacement of the ascending aorta (AAR) with or without involvement of the aortic root and the aortic valve. Methods: Clinical data of 44 patients from three participating institutions with AAR with or without involvement of the aortic valve or aortic root via RAMT between April 2017 and February 2024 were retrospectively analyzed. According to surgical procedure, patients were divided into two groups, in the AAR and in the Wheat/Bentall group with concomitant valve or root replacement. Operative time, length of ventilation, perioperative outcome, length of intensive care unit (ICU) as well as postoperative hospital stay, and mid- and long-term results were retrospectively analyzed. Results: Mean age was 61.4 ± 10.7 years old with a frequency of male gender of 63.6%. Mean cardiopulmonary bypass (CBP) time and aortic cross-clamping time was 94.9 ± 32.5 min and 63.8 ± 25.9 min, respectively. CPB and aortic clamp time were significantly lower in AAR group. In the first 24 h, the mean drainage volume was 790.3 ± 423.6 mL. Re-thoracotomy due to bleeding was zero. Sternotomy was able to be avoided in all patients. Patients stayed 35.9 ± 23.5 h at ICU and were discharged 7.8 ± 3.0 days following surgery from hospital. Mean ventilation time was 5.8 ± 7.6 h. All patients survived and 30-day mortality was 0.0%. At a median follow-up time of 18.2 months, all patients were alive. The results were similar in both groups. Conclusions: The full endoscopic RAMT approach with 3D visualization is a safe, feasible and promising technique that can be transferred in the field of aortic surgery without compromising surgical quality, postoperative outcomes, or patient safety when performed by an experienced team in a high-volume center.

Verified
Journal Article
Open access
PDF file
MHMarwan Hamiko
Marwan Hamiko
KJKatja Jahnel
Katja Jahnel
JRJulia Rogaczewski
Julia Rogaczewski
MSMyriam Schafigh
Myriam Schafigh
MSMiriam Silaschi
Miriam Silaschi
Farhad BakhtiaryFarhad Bakhtiary
Farhad Bakhtiary
(1) Background: Despite optimal surgical therapy, replacement of the ascending aorta leads to a significant reduction in the quality of life (QoL). However, an optimal result includes maintaining and improving the QoL. The aim of our study was to evaluate the long-term outcome and the QoL in patients with aneurysms in the ascending aorta; (2) Methods: Between 2014 and 2020, 121 consecutive patients who underwent replacement of the ascending aorta were included in this study. Acute aortic pathologies were excluded. A standard short form (SF)-36 questionnaire was sent to the 112 survivors. According to the surgical procedure, patients were divided into two groups (A: supracoronary replacement of the aorta, n = 35 and B: Wheat-, David- or Bentall-procedures, n = 86). The QoL was compared within these groups and to the normal population, including myocardial infarction (MI), coronary artery disease (CAD) and cancer (CAN) patients; (3) Results: 83 patients were males (68.6%) with a mean age of 62.0 ± 12.5 years. Early postoperative outcomes showed comparable results between groups A and B, with a higher re-thoracotomy rate in B (A: 0.0% vs. B: 22.1%, p = 0.002). The 30-day mortality was zero. Overall, mortality during the follow-up was 7.4%. The SF-36 showed a significant decay in both the Physical (PCS) and Mental Component Summary (MCS) in comparison to the normal population (PCS: 41.1 vs. 48.4, p < 0.001; MCS: 42.1 vs. 50.9, p < 0.001) but without significant difference between both groups. Compared to the MI and CAD patients, significantly higher PCS but lower MCS scores were detected (p < 0.05); (4) Conclusions: Replacement of the ascending aorta shows low risk regarding the operative and postoperative outcomes with satisfying long-term results in the QoL. The extent of the surgical procedure does not influence the postoperative QoL.

12 January 2023 in Advances in Therapy
Verified
Journal Article
Open access
PDF file
AAAli El-Sayed Ahmad
Ali El-Sayed Ahmad
MSMiriam Silaschi
Miriam Silaschi
MBMichael Borger
Michael Borger
VSVahid Seidiramool
Vahid Seidiramool
MHMarwan Hamiko
Marwan Hamiko
Farhad BakhtiaryFarhad Bakhtiary
Farhad Bakhtiary
Introduction The frozen elephant trunk technique (FET) has become routine for aortic arch and descending aortic repair. New hybrid prosthesis models are constantly being developed to increase effectiveness and durability of aortic repair. Recently, concerns were raised regarding increased post-operative bleeding using a new-generation hybrid prosthesis (E-vita® OPEN NEO, CryoLife Inc. JOTEC GmbH, Hechingen, Germany). We report the outcomes of a multi-centre experience of using the E-vita OPEN NEO. Methods All patients undergoing aortic surgery at five European centres using the E-vita OPEN NEO from 2020 to 2022 were included (n = 22). The primary endpoint was the amount of chest drain fluid after 24 h and re-thoracotomy rate for bleeding. Results Median patient age was 62.5 ± 12.6 years, 50.0% (11/22 patients) were female and 27.3% (6/22) of procedures were re-operative cardiac surgeries. Aortic dissection was present in 54.5% (12/22). The median cardiopulmonary bypass time was 148 min and ischaemia time was 84 min. Mortality at 30 days was 4.5% (1/22) and the stroke rate was 18.2% (4/22). The rate of re-thoracotomy for bleeding was 4.5% (1/22) with a median amount of chest drain fluid within 24 h of 569 (IQR 338–910) ml. There were no device-associated adverse events. Conclusions Use of this new-generation hybrid prosthesis for FET was safe and effective. Patient follow-up was largely uneventful given the extent of the procedures performed. In particular, bleeding events were uncommon in this cohort of patients comprising many aortic dissections and re-operative procedures. No increase in oozing was observed. Graphical Abstract

15 April 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
MHMarwan Hamiko
Marwan Hamiko
SSSaad Salamate
Saad Salamate
MNMaedeh Ayay Nassari
Maedeh Ayay Nassari
ASAndre Späth
Andre Späth
SSSami Sirat
Sami Sirat
Farhad BakhtiaryFarhad Bakhtiary
Farhad Bakhtiary
Background: Recently, minimally invasive access via right-anterolateral mini-thoracotomy (RAMT) has been gaining popularity in cardiac surgery. This approach is also an option for sur-geons performing aortic surgery. Aim of the study is to present our surgical method highlighting the total endoscopic minimally invasive approach via RAMT for replacement of the ascending aorta (AAR) with or without involvement of the aortic root and the aortic valve. Methods: Clini-cal data of 44 patients from three participating institutions with AAR with or without involving the aortic valve or aortic root via RAMT between April 2017 and February 2024 were retrospec-tively analyzed. According to surgical procedure patients were divided in group A with only AAR and group B with concomitant valve or root replacement. Operative time, length of ventila-tion, perioperative outcome, length of intensive care unit (ICU) as well as postoperative hospital stay, and mid- and long-term results were retrospectively analyzed. Results: Mean age was 61.4 ± 10.7 years old with a frequency of male gender (63.6%). Mean cardiopulmonary bypass (CBP) time and aortic cross-clamping time was 94.9 ± 32.5 min. and 63.8 ± 25.9 min., respectively. CPB and aortic clamp time were significantly lower in group A. In the first 24 hours the mean drain-age volume was 790.3 ± 423.6 ml. Re-thoracotomy due to bleeding was zero. Sternotomy could be avoided in all patients. Patients stayed 35.9 ± 23.5 hrs at ICU and were discharged 7.8 ± 3.0 days following surgery from hospital. Mean ventilation time was 5.8 ± 7.6 hrs. All patients survived and 30-day mortality was 0.0%. At a median follow-up time of 18.2 months, all patients were alive. The results were similar in both groups. Conclusions: The full endoscopic RAMT approach with 3D visualization is a safe and feasible technique which can be transferred in the field of aor-tic surgery without compromising surgical quality, postoperative outcomes, or patient safety when performed by an experienced team in a high-volume center.

28 April 2025 in Interdisciplinary CardioVascular and Thoracic Surgery
Verified
Journal Article
Open access
MHMarwan Hamiko
Marwan Hamiko
ASAndre Spaeth
Andre Spaeth
HAHossien Alirezaei
Hossien Alirezaei
IKIhor Krasivskyi
Ihor Krasivskyi
JRJulia Rogaczewski
Julia Rogaczewski
FBFarhad Bakhtiary
Farhad Bakhtiary
OBJECTIVES: Re-thoracotomy due to pericardial effusion is a frequent complication after aortic surgery, leading to prolonged intensive care unit (ICU) and hospital stays and adverse outcomes. This study aims to evaluate the frequency of re-thoracotomy and postoperative atrial fibrillation in patients undergoing ascending aorta replacement with or without posterior left pericardiotomy. METHODS: We retrospectively analysed clinical data from patients who underwent elective ascending aorta replacement with or without aortic root between January 2014 and June 2024. Patients were divided into two groups based on posterior left pericardiotomy. We assessed re-thoracotomy due to bleeding or pericardial effusion, postoperative atrial fibrillation, ICU and in-hospital stay, as well as mortality rates, adjusting for confounders using propensity score matching. RESULTS: A total of 256 patients could be included (n = 140 without and n = 116 with posterior left pericardiotomy). Mean age was 61.6 ±12.2 years, with 27.7% female patients. After matching, re-thoracotomy (12.9% vs 3.4%; P = 0.007) and postoperative atrial fibrillation (36.4% vs 16.4%; P = 0.011) were higher in patients without pericardiotomy. Thirty-day and 1-year mortality were 1.3% and 4.2%, respectively. Posterior left pericardiotomy was associated with shorter ventilation time (8.0 vs 15.0 hours; P < 0.001) and hospital stay (8.0 vs 12.0 days; P < 0.001). Similar results were observed between the unmatched and the matched cohort. CONCLUSIONS: Posterior left pericardiotomy is a simple surgical manoeuvre associated with lower rates of re-thoracotomy and postoperative atrial fibrillation in elective aortic surgery patients in a retrospective cohort. Further prospective randomized trials should be performed to confirm and highlight the results from our study.

20 January 2026 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
JKJacqueline Kruse
Jacqueline Kruse
MSMiriam Silaschi
Miriam Silaschi
MCMichael Celik
Michael Celik
MHMarwan Hamiko
Marwan Hamiko
EAEissa Alaj
Eissa Alaj
Farhad BakhtiaryFarhad Bakhtiary
Farhad Bakhtiary
Objectives: The HOSTILE score was developed to assess femoral access challenges in transcatheter valve therapy. Similar vascular issues arise in femoral cannulation for minimally invasive valve surgery, making CT-based planning essential. We adapted the score for surgical use (MOD-HOSTILE) and evaluated its association with neurological and adverse outcomes. Methods: In this single-center retrospective study, the MOD-HOSTILE score (0–11 points) was calculated for 364 patients undergoing minimally invasive heart valve surgery from 2019 to 2023. Patients were stratified into low (0–2), mild (>2–5), and high (>5–11) score categories. Outcomes included 30-day stroke, other neurological events, and perioperative complications. Results: High MOD-HOSTILE patients were significantly older (70 [64.7–73.0] vs. 61 [60.0–63.0] years; p < 0.01) and had higher surgical risk (EuroSCORE II 1.79 [1.26–2.16] vs. 0.83 [0.75–0.94]; p < 0.01). Neurological complications were more frequent in the high MOD-HOSTILE group, including stroke (8.7% vs. 0.9%; p = 0.02) and hemiplegia (13.0% vs. 0.9%; p < 0.01). Axillary cannulated patients had higher MOD-HOSTILE scores than femoral cannulated patients. Stroke risk was highest in patients with high MOD-HOSTILE score undergoing axillary cannulation (high vs. low MOD-HOSTILE, 18.2% vs. 0%; p = 0.04). Thirty-day mortality was comparable between groups (p = 0.09). MOD-HOSTILE predicted stroke with an AUC of 0.78 (95% CI 0.73–0.82) and OR 1.4 per point (95% CI 1.1–2.0). Conclusions: The MOD-HOSTILE score identifies vascular and neurological risk in minimally invasive valve surgery, with scores ≥5 indicating elevated risk of stroke and delirium. Patients with high scores may benefit from alternative surgical strategies.